2024-09-20

Vinyl acetate-ethylene copolymer (VAE) emulsion is the abbreviation of vinyl acetate-ethylene copolymer emulsion. It is a polymer emulsion formed by copolymerizing vinyl acetate and ethylene monomers with other auxiliary materials through emulsion polymerization.

 

White latex is a water-soluble adhesive, a thermoplastic adhesive produced by polymerization of vinyl acetate monomer under the action of an initiator. Usually called white latex or PVAC emulsion for short, the chemical name is polyvinyl acetate adhesive, which is synthesized from acetic acid and ethylene to vinyl acetate, with the addition of titanium dioxide (low-grade ones add light calcium, talc, and other powders). It is then made by emulsion polymerization. A thick milky white liquid.

 

VAE emulsion has the advantages of permanent softness, water resistance, low temperature resistance, fast bonding speed, high bonding strength, and is safe and non-toxic. VAE emulsion is widely used in adhesives, exterior wall insulation, building waterproofing, coatings, composite packaging materials, building cement mortar modification, non-woven fabric manufacturing, paper coating and general adhesive for various polar and non-polar materials. Access and other fields.

 

The characteristics of white latex include normal temperature curing, fast curing, high bonding strength, good toughness and durability of the bonding layer and not easy to age. White latex is a widely used water-soluble adhesive. It is mainly used in wood bonding, construction industry, coatings, etc. It is also used in furniture assembly, surface repair, etc.

 

Website: www.elephchem.com

Whatsapp: (+)86 13851435272

E-mail: admin@elephchem.com

ElephChem Holding Limited, professional market expert in Polyvinyl Alcohol(PVA) and Vinyl Acetate–ethylene Copolymer Emulsion(VAE) with strong recognition and excellent plant facilities of international standards.

READ MORE
2024-09-20

To test the dissolution time of polyacrylamide (PAM), you can follow these steps:

 

polyacrylamide (PAM)

 

1. Prepare a known volume of water or the solvent in which you plan to dissolve the PAM. It's important to measure the volume accurately for consistent results.

 

2. Heat the water or the solvent to a specific temperature, if required. Some PAM formulations might require elevated temperatures for efficient dissolution. Check the specifications or guidelines for the particular PAM you are using.

 

3. Slowly add the PAM powder to the water or solvent while stirring continuously. The stirring can be done manually using a glass rod or by using a magnetic stirrer.

 

4. Observe the PAM powder as it dissolves in the solution. Note the time it takes for the PAM to completely dissolve. You can consider it dissolved when there are no visible clumps or particles remaining.

 

5. Repeat the experiment multiple times to ensure consistency and accuracy. Take note of any variations in the dissolution time and average the results for better reliability.

 

It's worth mentioning that the dissolution time can be affected by various factors such as temperature, concentration of the PAM solution, and the specific formulation of the PAM. Therefore, it's crucial to maintain consistent experimental conditions when comparing different samples or performing subsequent.

READ MORE
2024-09-19

Polyvinyl Alcohol (PVA) is a versatile polymer used in various industries. Among its different grades, Polyvinyl Alcohol 2484, also known as PVA 2484, stands out as a popular choice. As a leading PVOH manufacturer, KURARAY POVAL produces high-quality PVA 2484 that meets the stringent demands of various applications.

PVA 2484 possesses exceptional characteristics, making it indispensable in numerous sectors. With a moderate viscosity and good film-forming properties, it has found extensive use in the manufacturing of adhesives, coatings, and textiles. Its ability to provide excellent adhesion and water resistance makes it an ideal choice for paper coatings and packaging materials.

Sinopec PVA, another renowned manufacturer, produces a wide range of PVA grades, including PVA 084-48. This grade is highly sought after for its exceptional film-forming properties, making it suitable for applications in the textile, paper, and construction industries. Its superior bonding strength and solvent resistance make it a reliable choice for various adhesive formulations.

Mowiol 47-88, manufactured by Kuraray, is a water-soluble PVA grade widely used in film and textile industries. This high-performance PVA offers excellent mechanical stability and chemical resistance, making it suitable for applications such as protective films and textile sizing.

PVA-224, a grade developed by Nippon Gohsei, exhibits outstanding freeze-thaw stability, making it ideal for applications in the construction and cement industries. Its ability to enhance the workability, water retention, and durability of cement-based systems has made it a preferred choice among manufacturers.

With numerous manufacturers offering a wide range of PVA grades, it is crucial to select the right one for your specific application. Each grade possesses unique properties that cater to specific industry needs. Therefore, understanding the requirements of your project and consulting with experts can help you make an informed decision.

In conclusion, Polyvinyl Alcohol 2484, PVA 084-48, Mowiol 47-88, PVA-224, and other grades offered by leading manufacturers like KURARAY POVAL and Sinopec PVA are critical components in various industries. The exceptional properties of these grades make them invaluable for applications spanning adhesives, coatings, textiles, and construction. Selecting the right PVA grade involves considering factors such as viscosity, film-forming properties, and chemical resistance. So, whether you are manufacturing adhesives or sizing textiles, choosing the appropriate PVA grade can positively impact the performance of your end product.

READ MORE
2024-09-17

Welcome to our beginner’s guide on using 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021, a versatile compound with CAS number 2386-87-0. In this guide, we will provide you with a step-by-step process to understand and use this chemical effectively. Whether you are a novice or someone looking to enhance your knowledge, this guide will help you get started on the right path.

Step 1: Understanding the Properties and Safety Precautions

Before diving into practical applications, it’s crucial to familiarize yourself with the properties and safety precautions associated with 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021. Conduct thorough research and review the available material safety data sheets (MSDSs) to ensure you are well-informed about the compound’s handling, storage, and potential hazards.

Step 2: Identifying the Desired Application

Determine the specific application or purpose for which you intend to utilize 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021. This compound is widely used in various industries, such as pharmaceuticals, coatings, adhesives, and more. Understanding your objective will help you tailor your approach and make the most of its benefits.

Step 3: Obtaining the Compound

Once you are confident about your understanding of the compound and its applications, it’s time to acquire the necessary quantity of 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021. Contact reputable suppliers who can provide you with high-quality, reliable products, ensuring compliance with safety and regulatory standards.

Step 4: Handling and Storage

Carefully follow the recommended guidelines for handling and storing 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021. Ensure that you have the appropriate safety equipment, such as gloves, goggles, and a well-ventilated workspace. Store the compound according to its specific storage requirements, considering factors like temperature, light sensitivity, and compatibility with other substances.

Step 5: Application Techniques

Now comes the exciting part – utilizing 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021 for your desired application. Depending on the industry or field you are working in, familiarize yourself with relevant application techniques. This might involve mixing with other substances, adjusting ratios, following a specific curing process, or using specialized equipment. Be sure to consult reliable sources, manufacturers’ instructions, or seek expert advice as needed.

Step 6: Monitoring and Troubleshooting

Once you have successfully applied 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021, it’s important to monitor the results and address any issues that may arise. Keep track of the performance of your application, and be prepared to troubleshoot if necessary. This could involve evaluating factors like adhesion, curing time, chemical resistance, or any other relevant parameters.

Step 7: Documenting and Learning

Lastly, maintain a detailed record of your experience with 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021. Document the steps you followed, the lessons learned, and any modifications you made along the way. This will help you in future applications and serve as a reference for others who may wish to use the compound.

Remember, 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021 should be handled with care, adhering to safety protocols at all times. If you have any doubts or concerns, don’t hesitate to consult experts in the field to ensure a successful and safe experience.

Now that you have a step-by-step guide in your hands, you’re ready to embark on your journey with 3.4-EPOXYCYCLOHEXYLMETHYL YLCE-2021. Good luck with your endeavors!

READ MORE
2024-09-14

To detect the solid content of polyacrylamide, you can follow the steps below:

 

1. Weigh an empty, clean, and dry container or crucible accurately and record its weight (W1).

2. Add a known amount of polyacrylamide sample to the container.

3. Place the container with the sample in an oven set to a specific temperature (usually around 105-110°C) for a specific time (typically 1-2 hours). The aim is to evaporate the moisture and volatile components from the polyacrylamide.

4. After the specified time, remove the container from the oven and allow it to cool in a desiccator.

5. Once the container has reached room temperature, weigh it with the dried sample and record its weight (W2).

6. Calculate the solid content using the formula:

Solid Content (%) = [(W2 - W1) / (W2 - container weight)] × 100

 

Where:

- W1 is the weight of the empty container.

- W2 is the weight of the container with the dried polyacrylamide sample.

- The container weight is the weight of the container itself, which should be subtracted to obtain the net weight of the dried sample.

 

This method provides an estimation of the solid content of polyacrylamide based on the weight loss after drying. Keep in mind that the drying conditions and time can vary depending on the specific requirements of polyacrylamide and the application for which it will be used.

READ MORE
2024-09-14

What kind of TPU products havespecific requirements for slip resistance?

 

Slip resistance is a desirable characteristic for various TPU (Thermoplastic Polyurethane) products, especially those that come in direct contact with where slipperiness can be a concern. Some examples of TPU products that commonly require slip resistance include

 

Shoe Soles: TPU is widely usedinthe production of shoe soles for its excellent flexibility, durability, and slip resistance. Slip-resistant shoe soles offer improved traction and grip on various surfaces, reducing the risk of slipping and falling.

Shoe Soles

Safety Equipment: TPU is utilized in the manufacturing of safety equipment and gear such astool handle,work boots, gloves, and harnesses. Slip resistance is essential in these products to ensure stability and prevent accidents in hazardous work environments.

Safety Equipment

 

 

Sports and Recreation Equipment: TPU is found in sports and recreational products where slip resistance is crucial for user safety and performance. Examples include rubberized grips on handles of sports equipment like tennis rackets, golf clubs, and bicycle handles.

 

Sports and Recreation Equipment

Mats and Flooring: TPU can be applied in mats and flooring materials to provide slip resistance, particularly for areas prone to moisture or in environments where there is a risk of slipping, such as gyms, swimming pools, and kitchens.

Mats and Flooring

Industrial Applications: Industrial applications where grip and traction are vital, such as conveyor belts, drive belts, and rollers.

Drive Belts

These are just a few examples of TPU products that can benefit from slip resistance. The specific requirements for slip resistance may vary depending on the intended application and the environmental conditions in which the product will be used.

READ MORE
2024-09-14

Ethylene-Vinyl Alcohol Copolymer (EVOH) enthusiasts, get ready to explore the unique features and benefits of EVOH EW-3801. This remarkable copolymer is revolutionizing industries across the globe with its exceptional properties and versatile applications. In this article, we delve into the remarkable attributes that make EVOH EW-3801 a standout choice for various projects.

1. Enhanced Barrier Properties:

EVOH EW-3801 boasts outstanding gas barrier properties. It effectively blocks the transmission of gases such as oxygen and other volatile compounds, making it an ideal choice for packaging applications. Your products will remain fresh, protected, and free from spoilage or contamination, ensuring maximum shelf life and customer satisfaction.

2. Versatile Applications:

The versatility of EVOH EW-3801 knows no bounds. Whether in food packaging, medical devices, automotive fuel tanks, or agricultural films, this copolymer excels in meeting diverse industry requirements. Its exceptional compatibility with a wide range of polymers allows for seamless blending, opening up endless possibilities for product innovation and customization.

3. Excellent Processability:

EVOH EW-3801 is a dream come true for manufacturers, thanks to its excellent processability. It can be easily extruded, molded, or coated onto various substrates without compromising its barrier properties. This copolymer offers high melt strength, improved thermal stability, and allows for efficient processing, resulting in increased productivity and reduced production costs.

4. Environmental Sustainability:

With environmental concerns at the forefront, EVOH EW-3801 stands out as an eco-friendly solution. It is recyclable and can be easily incorporated into existing recycling systems, reducing waste and promoting a circular economy. Furthermore, its superior barrier properties minimize the need for excessive material usage, making it a sustainable choice for conscious manufacturers.

5. Exceptional Chemical Resistance:

EVOH EW-3801 is renowned for its remarkable chemical resistance. Whether against strong acids, alkalis, or organic solvents, it remains stable and maintains its barrier properties, ensuring the integrity and safety of your products even in the most challenging environments. This copolymer provides peace of mind, knowing that your goods are protected no matter the circumstances.

6. Impressive Transparency:

When it comes to packaging applications, aesthetics play a crucial role. EVOH EW-3801 offers excellent transparency, enabling clear visibility of your product. Showcase the freshness and quality of your goods, enticing consumers with its appealing appearance, and allowing for attractive packaging designs that allure customers and strengthen brand recognition.

7. Food Contact Approval:

EVOH EW-3801 is approved for food contact applications, meeting stringent regulatory standards. This ensures that your packaged food remains safe and compliant, guaranteeing the well-being of your consumers. With this copolymer, you can confidently deliver products that meet the highest safety and quality requirements.

EVOH EW-3801 is redefining the boundaries of what is possible with Ethylene-Vinyl Alcohol Copolymer. Its enhanced barrier properties, versatility, excellent processability, environmental sustainability, chemical resistance, transparency, and food contact approval make it the ultimate choice for countless industries. Embrace the power of EVOH EW-3801, revolutionize your products, and unlock new opportunities today!

READ MORE
2024-09-12

Polyvinyl alcohol (PVOH) is a versatile polymer that finds applications in various industries. This article will explore some popular PVOH varieties, such as PVOH 725, Modified PVA 725, POVAL L-10, POVAL L-9, POVAL LM-10 HD, PVA FS-22 Н, Modified polyvinyl alcohol, Modified PVOH, PVA 505, Alcotex 7206, PVA FS-10, Alcetox 225, Alcotex 72.5, Alcotex 225, and Alcotex L-8.

PVOH 725: Enhancing Performance

PVOH 725 is a high-quality polymer widely used for its excellent adhesive properties. It offers strong bonding strength and is resistant to water, chemicals, and UV radiation. Its versatility makes it suitable for various applications, including paper coatings, textile sizing, and construction materials.

Modified PVA 725: Tailored Solutions

Modified PVA 725 is a modified form of PVOH 725 that offers enhanced properties for specific applications. This variety exhibits improved flexibility, durability, and adhesion properties. Modified PVA 725 is commonly used in industries such as packaging, textiles, and adhesives.

POVAL L-10 and POVAL L-9: Specialty Grades

POVAL L-10 and POVAL L-9 are specialty grades of PVOH known for their high tensile strength and excellent film-forming properties. These grades are ideal for applications such as water-soluble packaging, laundry detergent pods, and agricultural films.

POVAL LM-10 HD: Strength and Versatility

POVAL LM-10 HD is a heavy-duty variant of PVOH that offers exceptional tensile strength and tear resistance. It is widely used in industrial applications, including composite materials, coatings, and emulsion polymerization.

PVA FS-22 Н: Exceptional Film-Forming Ability

PVA FS-22 Н is a polyvinyl alcohol grade known for its exceptional film-forming ability. It is commonly used in the production of thin films, such as coatings for electronics, optical materials, and food packaging.

Modified Polyvinyl Alcohol: Customized Solutions

Modified polyvinyl alcohol refers to various PVOH derivatives that have been chemically modified to enhance specific properties. These modifications can improve adhesion, water resistance, or thermal stability, making them suitable for a wide range of applications, including ceramics, textiles, and paper coatings.

PVA 505 and Alcotex 7206: Improved Water Solubility

PVA 505 and Alcotex 7206 are water-soluble PVOH grades commonly used in applications such as laundry bags, water-soluble packaging, and dissolvable films. Their excellent solubility and biodegradability make them environmentally friendly options.

PVA FS-10 and Alcetox 225: Versatility at its Best

PVA FS-10 and Alcetox 225 are versatile PVOH grades that find applications across diverse industries. They serve as excellent binders, emulsifiers, and film-forming agents, making them suitable for industries like adhesives, textiles, and coatings.

Alcotex L-8: Enhanced Stability

Alcotex L-8 is a PVOH grade known for its superior storage stability. It retains its properties for an extended period, making it ideal for applications where prolonged shelf life is essential, such as paints, inks, and construction materials.

In conclusion, PVOH and its various derivatives offer a wide range of properties and applications. From enhanced adhesion to improved solubility, each variety serves specific needs across industries. Whether it’s packaging, textiles, coatings, or electronics, PVOH continues to play a vital role in countless products, enabling innovation and advancing various fields.

READ MORE
2024-09-12

To test the viscosity of polyacrylamide, you can use a viscometer or a rheometer, which are instruments specifically designed to measure the flow properties of fluids. Here's a general procedure to test the viscosity of polyacrylamide:

 

1. Sample Preparation: Dissolve a known concentration of polyacrylamide in a suitable solvent, typically water. The concentration of the polymer solution will depend on the desired viscosity range and the capabilities of your viscometer. It is recommended to prepare several solutions with different concentrations to cover a wide viscosity range.

2. Allow for Equilibration: After preparing the polymer solutions, allow them to equilibrate for a sufficient period to ensure complete dissolution of the polymer and ensure temperature stability. The equilibration time may vary depending on the specific polyacrylamide grade and the solvent used.

3. Set up the Viscometer: Set up the viscometer according to the manufacturer's instructions. Different viscometers may have unique requirements, so it's essential to follow the guidelines provided with your specific instrument.

4. Fill the Viscometer: Fill the viscometer chamber or measuring cup with the prepared polyacrylamide solution. Ensure that there are no bubbles or air gaps in the sample as they can affect the viscosity measurement.

5. Allow for Stabilization: Allow the sample to stabilize in the viscometer for a specific period. This stabilization time allows the sample temperature to equilibrate and ensures the accuracy of viscosity measurement.

6. Start the Measurement: Start the viscometer and begin the measurement. The instrument will typically apply a controlled shear stress or shear rate to the sample and measure the resulting flow behavior.

7. Take Measurements: The viscometer will give you viscosity readings based on the flow behavior of the polyacrylamide solution. It may provide instantaneous viscosity values or generate viscosity vs. shear rate curves, depending on the instrument's capabilities.

8. Repeat for Different Concentrations: If you prepared multiple polyacrylamide solutions with varying concentrations, repeat the measurement steps for each concentration to obtain a viscosity-concentration relationship.

It's worth noting that polyacrylamide viscosity may be affected by factors such as shear rate, temperature, molecular weight, and concentration. To obtain comprehensive viscosity data, it's common to perform viscosity measurements at different shear rates or using different measurement geometries provided by the rheometer/viscometer.

 

Always refer to the specific instructions and guidelines provided by the viscometer manufacturer for accurate viscosity testing

READ MORE
2024-09-11

In today's industrial world, heat resistance is a critical factor for many manufacturing sectors, particularly in plastics and polymer production. One product that has gained attention for its exceptional performance in heat-resistant applications is Styrene NPMI MAH Copolymer (Styrene-N-Phenylmaleimide-Maleic anhydride Copolymer) manufacturerd by Yangchen Tech. This high-grade copolymer offers unique benefits that make it an ideal choice for various industries requiring enhanced thermal stability. Let’s dive into its applications, advantages, and the significance of its industrial-grade quality.

 

Styrene NPMI MAH Copolymer

 

Test Item Test Standards Test Data
Molecular weight and distribution GPC Mw=12~16*104.PDI=2.0~3.0
Glass transition temperature/℃ DSC 160~210℃(Adjustable)
Initial decomposition temperature/℃ TGA 395-405℃
Density  ASTM-D792 1.00~1.15g/cm3
Appearance NG Off-white powder

 

What is Styrene NPMI MAH Copolymer?

 

Styrene NPMI MAH (N-Phenylmaleimide-Maleic Anhydride) Copolymer manufactured by Yangchen Tech  is a specialized copolymer known for its heat resistance, chemical stability, and durability. It is synthesized by copolymerizing styrene, N-phenylmaleimide (NPMI), and maleic anhydride (MAH), resulting in a material with outstanding thermal stability.

 

This copolymer is specifically designed to withstand high temperatures, making it ideal for applications where traditional polymers may degrade or lose functionality. Its unique composition also provides enhanced mechanical strength, making it a versatile solution for various industrial processes.

 

Applications of Industrial Grade Styrene NPMI MAH Copolymer

 

The industrial-grade Styrene NPMI MAH Copolymer manufactured by Yangchen Tech has a wide range of applications across multiple sectors. Here are some key areas where this product excels:

 

1. Heat-Resistant Modifiers in Plastics

One of the primary uses of Styrene NPMI MAH Copolymer is as a heat-resistant modifier in plastics like ABS (Acrylonitrile Butadiene Styrene) and PVC (Polyvinyl Chloride). By incorporating this copolymer into plastic formulations, manufacturers can significantly improve the thermal stability of these materials, allowing them to retain their mechanical properties even at elevated temperatures.

 

This is especially crucial in industries like automotive, electronics, and appliances, where plastics are exposed to high heat during operation.

 

2. High-Temperature Adhesives

Another important application of Styrene NPMI MAH Copolymer is in the production of high-temperature adhesives. Due to its excellent heat resistance, this copolymer can be used in adhesives designed for harsh environments, where temperature fluctuations and exposure to heat can compromise the bond strength of regular adhesives.

 

The copolymer's chemical structure helps adhesives maintain their integrity, providing long-lasting bonds even in extreme conditions.

 

3. Electrical Components

In the electronics industry, heat management is a crucial aspect of product design. Electrical components, especially in high-power devices, generate significant heat, which can damage sensitive parts if not properly managed. Styrene NPMI MAH Copolymer, with its superior thermal stability, is an excellent material for insulating electrical components, ensuring they remain functional even under high heat loads.

 

4. Automotive Parts

The automotive industry demands materials that can withstand the heat generated by engines and other mechanical components. Styrene NPMI MAH Copolymer is an ideal candidate for use in heat-resistant automotive parts. Its ability to endure high temperatures without losing structural integrity makes it valuable for components like engine covers, connectors, and other parts exposed to intense heat during vehicle operation.

 

Why Choose Industrial-Grade Styrene NPMI MAH Copolymer manufactured by Yangchen Tech?

 

The "industrial-grade" label indicates that this copolymer is designed to meet the rigorous demands of high-temperature and high-stress environments. Here's why choosing an industrial-grade Styrene NPMI MAH Copolymer is essential:

 

- Enhanced Durability: Industrial-grade materials are built to last longer, even in the toughest conditions, reducing the need for frequent replacements or repairs.

- Consistent Performance: The material’s ability to consistently perform at high temperatures ensures reliability, making it suitable for critical applications like automotive parts and electronics.

- Customizable Formulations: Industrial-grade copolymers can be tailored to specific needs, offering flexibility in application across different industries.

  

Styrene NPMI MAH Copolymer manufactured by Yangchen Tech is an exceptional product that addresses the critical need for heat-resistant materials in various industrial applications. Its industrial-grade quality ensures reliable performance in high-temperature environments, making it an invaluable material for industries such as plastics, adhesives, automotive, and electronics. As more manufacturers look for durable, heat-resistant solutions, Styrene NPMI MAH Copolymer manufactured by Yangchen Tech stands out as a go-to option.

 

If you’re in search of a material that offers superior heat resistance and durability, consider integrating industrial-grade Styrene NPMI MAH Copolymer into your manufacturing processes to achieve long-lasting, reliable results. 

 

READ MORE
 Tags: