제품 설명
Coace® W5A-2 is a glycidyl methacrylate modified polyolefin elastomer with high grafted rate. The GMA-POE with a high grafted rate has several desirable properties, such as improved adhesion to polar surfaces, increased toughness, and enhanced thermal stability. These properties make it suitable for various applications, such as adhesives, coatings, and engineering plastics.
Glycidyl methacrylate modified polyolefin elastomer (GMA-POE) with a high grafted rate is a type of polymer material that is created by grafting glycidyl methacrylate (GMA) onto a polyolefin elastomer backbone. The high grafted rate refers to the amount of GMA that is chemically bonded to the polyolefin elastomer backbone, which can be achieved through a variety of methods.
A specialist polymer additive called W5A-2 Glycidyl Methacrylate Modified Polyolefin Elastomer is used to improve the performance of polyester compounds, especially polybutylene terephthalate (PBT) and polyethylene terephthalate (PET). This chemical improves the mechanical characteristics and processability of polyester compounds by acting as a toughener and compatibilizer. The W5A-2 additive presents an appealing option for numerous industries looking for high-performance polyester materials thanks to its distinctive composition and remarkable properties.
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특성
특성 | 가치 | 단위 | 테스트 방법 |
모양 | 과립 | ||
색상 | 흰색 | ||
밀도 | 0.88 | g/cm3 | ASTM D792 |
용융 유량(190℃2.16kg) | 3-8 | g/10분 | ASTM D1238 |
Glycidyl Methacrylate Content | 높음 | wt% | COACE 방법[1] |
참고: [1] 낮음<0.4wt%; 중간(0.4wt%-0.8wt%); 높음≥0.8wt%.
- The GMA-POE can be prepared through a melt-grafting process or through a solution-grafting process. In the melt-grafting process, the POE is melted and mixed with GMA, and a radical initiator is added to initiate the grafting reaction. The resulting material is then cooled and solidified. In the solution-grafting process, the POE is dissolved in a solvent, and GMA and a radical initiator are added to the solution. The resulting material is then precipitated and dried.
- The high grafted rate of GMA in the POE can be achieved through various methods, such as controlling the reaction conditions, using a suitable initiator, and optimizing the ratio of GMA to POE. A higher grafted rate typically leads to better adhesion properties and improved thermal stability.
In summary, GMA-POE with a high grafted rate is a polymer material that is created by grafting GMA onto a polyolefin elastomer backbone. It has several desirable properties, including improved adhesion to polar surfaces, increased toughness, and enhanced thermal stability, making it suitable for various applications such as adhesives, coatings, and engineering plastics.
이점
W5A-2 works as a compatibilizer in polyester compounds, making it easier to mix various polymers together and increasing their compatibility. The additive allows efficient interfacial adhesion between the polyester matrix and additional polymers or fillers by including glycidyl methacrylate (GMA) functional groups. The mechanical characteristics, phase separation, and overall performance of the polyester compounds are all improved as a result of the increased compatibility.
Effect of Toughening:Polyester compounds, including PBT and PET, frequently display brittleness and poor impact resistance. These restrictions are addressed by the W5A-2 additive, which has a toughening effect. The additive’s modified polyolefin elastomer component enhances the impact resistance and energy absorption capabilities of the polyester compounds. The finished materials are appropriate for demanding applications due to their improved resistance to cracking, impact, and deformation.
Enhancement of Mechanical Properties:The W5A-2 addition considerably improves a number of mechanical properties of polyester compounds, including:
a. Tensile strength and modulus are enhanced by the addition of the W5A-2 additive, which also makes polyester compounds more durable and able to endure greater mechanical loads.
b. Flexibility and Elongation at Break: The polyester compounds receive greater flexibility from the modified polyolefin elastomer component, which also improves their elongation at break. This property guarantees that the materials may be deformed without breaking, improving durability and crack resistance.
c. Impact Resistance: The polyester compounds’ ability to tolerate abrupt impacts and mechanical shocks is improved by the W5A-2 addition. This quality is especially useful in applications that call for materials with great toughness and impact resistance, such automobile parts and electrical enclosures.
In addition to mechanical improvements, the W5A-2 additive also provides many processing benefits for polyester composites.
a. Improved Melt Flow: The modified polyolefin elastomer component of the additive enhances the polyester compounds’ melt flow characteristics.
This advancement makes extrusion and injection molding easier to process, which improves manufacturing processes and shortens cycle times.
b. Lower Processing Temperature: When fabricating polyester compounds, the W5A-2 additive enables a lower processing temperature. This benefit improves energy efficiency while lowering the chance of thermal damage and maintaining the material’s overall qualities.
c. superior Mold Release: By promoting superior mold release capabilities, the W5A-2 additive lowers the risk of sticking or adhesion during the molding process. Higher productivity and more efficient production processes are both facilitated by this quality.
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애플리케이션
1.To be used as a toughener for polyester and the fire retardant filled polyester, eg. PET,PBT, PET/FR, PBT/FR, and other polyester compounds.
2.To be used as a compatibilizer for polyolefin and polyester alloys.
3.To be used as an adhesive for some laminate structures.