1、乙烯
EVA是乙烯-醋酸乙烯共聚物，它是由乙烯（E）和乙酸乙烯（VA）共聚而制得，英文名称为：Ethylene Vinyl Acetate，简称为EVA，或E/VAC。
2、EVA是什么材料（附EVA材料牌号及相关应用）
化学品英文名称：ethylene-vinyl acetate copolymer eva脚垫在产品结构设计中很常用，再就是eva在产品设计中可以起到减震和缓冲作用。
3、乙烯
乙烯-醋酸乙烯共聚物具有良好的耐冲击和耐应力开裂、柔软性、高弹性、抗穿刺以及化学稳定性、电性能较好、生物相容性好，同时密度低，且与填料、阻燃剂有较好的相容性。 EVA随着VA含量的不同，从塑料、到橡胶、再到乳液，应用范围较广，适合于挤出、注塑、吹塑、涂覆、热成型等多种加工方式，可应用于电缆，密封件、医疗、绝缘薄膜、管材、板材、建材、电气配件、汽车配件和日用品等多类产品。 各种分子量的乙烯-醋酸乙烯共聚物可以通过高压自由基聚合、本体连续聚合或溶液聚合得到。 乙烯-醋酸乙烯共聚物可作为薄膜用于部分药物中，一般认为它是一种相对无毒和无刺激性的赋形剂。 白色粉末。 乙烯-醋酸乙烯共聚物可用于各种薄膜、发泡制品、热熔胶 …
4、EVA_化工百科
EVA是乙烯和醋酸乙烯的无规共聚物，由于在乙烯链中引入了具有极性的醋酸基团所形成的短支链，改变了原来的结晶状态，使得EVA较聚乙烯更富有柔韧性和弹性。 EVA树脂的性能与醋酸乙烯的含量和熔体流动速率有关，当MFR一定时，与醋酸乙烯含量的增高，其弹性、柔韧性、相容性和透明性等均有所提高，结晶度下降；而随着醋酸乙烯含量的降低，则性能接近于聚乙烯，刚性增大、耐磨性和电绝缘性能提高。 若醋酸乙烯含量一定，当MFR增加时，则软化点下降，加工性和表面光泽得到改善，但力学强度有所下降；反之，随着MFR的降低，则分子量增大，冲击性能和耐应力开裂性能有所提高。 EVA常作为改性剂与其他聚合物共混，这是由于EVA具有良好的挠曲性、 …
5、ETHYLENE VINYL ACETATE
CAS号查询致力于为化学行业用户免费提供ETHYLENE VINYL ACETATE的CAS号、中文名称、英文名称相互转换服务,同时也包括ETHYLENE VINYL ACETATE的性质、化学式、分子结构、密度、熔点、沸点等信息。
eva塑料_百度百科
乙烯／醋酸乙烯酯（ethylene vinyl acetate，简称为EVA或E/VAC）又称乙烯／乙酸乙烯酯，是由乙烯和乙酸乙烯酯聚合制成的共聚物合成材料。
乙烯—乙酸乙烯酯共聚物
Sinopec EVA is a thermoplastic copolymer manufactured through the free radical polymerization of ethylene and vinyl acetate in the presence of initiating agents using the high-pressure bulk polymerization process.
什么是EVA材料
EVA 材料是乙烯 - 醋酸乙烯酯共聚物（Ethylene-Vinyl Acetate Copolymer），是一种通用高分子材料。 一、化学结构：EVA 是由乙烯（E）和醋酸乙烯酯（VA）两种单体通过共聚反应生成的。
Ethylene Vinyl Acetate
Ethylene Vinyl Acetate, typically abbreviated as EVA, is a versatile and ubiquitous polymer. Often described as a copolymer of ethylene and vinyl acetate, EVA is widely used in various industries due to its excellent blend of properties, including flexibility, toughness, and resilience.
乙烯
乙烯-醋酸乙烯共聚物具有良好的耐冲击和耐应力开裂、柔软性、高弹性、抗穿刺以及化学稳定性、电性能较好、生物相容性好，同时密度低，且与填料、阻燃剂有较好的相容性。 EVA随着VA含量的不同，从塑料、到橡胶、再到乳液，应用范围较广，适合于挤出、注塑、吹塑、涂覆、热成型等多种加工方式，可应用于电缆，密封件、医疗、绝缘薄膜、管材、板材、建材、电气配件、汽车配件和日用品等多类产品。 各种分子量的乙烯-醋酸乙烯共聚物可以通过高压自由基聚合、本体连续聚合或溶液聚合得到。 乙烯-醋酸乙烯共聚物可作为薄膜用于部分药物中，一般认为它是一种相对无毒和无刺激性的赋形剂。 白色粉末。 乙烯-醋酸乙烯共聚物可用于各种薄膜、发泡制品、热熔胶 …
In the realm of chemistry, advancements in materials science resemble a masterfully orchestrated symphony. Among synthetic polymers, Ethylene-Vinyl Acetate (EVA) stands as a premier material, offering unique properties and broad applications that provide a solid foundation for modern technology and industry.
EVA is a thermoplastic elastomer synthesized from ethylene monomers. It combines the elasticity of rubber with the processability of plastics, resulting in exceptional physical and processing performance. Its primary components are ethylene and vinyl acetate, which undergo free-radical polymerization, earning it the name "free-radical polymerized thermoplastic elastomer."
The physical properties of EVA are distinctive. Its excellent flexibility, impact resistance, and wear resistance have made it widely used in packaging materials, footwear, automotive interiors, and wire and cable applications. For instance, EVA provides comfort and support in car seat cushions, while its resilience and shock absorption make it a preferred choice for athletic shoes.
Beyond its superior physical traits, EVA boasts remarkable chemical stability and electrical insulation. These qualities position it as a promising material in the electronics and electrical industries, such as in cable sheathing and insulation. Additionally, its non-toxic nature and recyclability have led to widespread use in healthcare, including surgical gloves and medical dressings.
The production of EVA is relatively environmentally friendly. Compared to traditional petroleum-based plastics, EVA relies on ethylene and vinyl acetate—two readily available petrochemical products—with minimal byproducts, reducing environmental impact. Furthermore, EVA’s biodegradability offers a potential advantage in agricultural films and mulch films.
EVA has limitations. Its poor heat resistance leads to softening or melting at high temperatures. Long-term use may also release harmful volatile organic compounds (VOCs) due to residual vinyl acetate monomers. Nonetheless, ongoing advancements in materials science are gradually addressing these challenges.
Looking ahead, EVA’s application prospects remain vast. As environmental awareness grows and demand for high-performance materials rises, research into EVA-based composites and functionalized materials will deepen. Techniques like blend modification could enhance EVA’s properties, expanding its use in renewable energy and aerospace. cutting-edge technologies such as nanotechnology and bioengineering may yield specialized EVA derivatives to meet diverse market needs.
As a versatile, high-performance material, EVA holds boundless potential for future development. With scientific progress, we有理由相信 (we have reason to believe) that EVA will continue advancing society while revealing an even brighter tomorrow.
