杜邦EVA美国杜邦EVA 220
EVA美国杜邦220 VA含量28%熔指150，用于粘接剂和混合用制品
EVA美国杜邦230 VA含量28%熔指110，用于粘接剂和混合用制品
EVA美国杜邦240 VA含量28%熔指43，用于粘接剂和混合用制品
EVA美国杜邦250 VA含量28%熔指25，用于粘接剂和混合用制品
EVA美国杜邦260 VA含量28%熔指6，用于特种需要的制品
EVA美国杜邦265 VA含量28%熔指3，用于特种需要的制品
EVA美国杜邦310 VA含量25%熔指400，在300系列中，中等分子量，粘度Zui低
EVA美国杜邦350 VA含量25%熔指19，适合和460牌号混合用，可得不同孔径的料和鞋用料
EVA美国杜邦360 VA含量25%熔指2，适合和460牌号混合用，可得不同孔径的料和鞋用料
EVA美国杜邦3130 VA含量12%熔指2.5，注塑级，相对密度0.940
EVA美国杜邦3135 VA含量12%熔指0.25，挤塑用，薄膜级，相对密度0.930
EVA美国杜邦3165 VA含量18%熔指0.7，挤塑用，相对密度0.940
The main factors affecting the performance of Eva are: 1, MeltIndex (MI)2, va% acetic acid content, Melt Index (Mi) is certain,the higher the content of Va, the higher the elasticity, softness,solubility and transparency of Vinyl Acetate. When the content ofVA decreased, the properties of Vinyl Acetate were close to thoseof polyethylene (PE) . The content of Va is certain, the SolubleIndex (Mi) increases, the softening point decreases, theworkability and surface gloss improve, but the strength decreases.Otherwise, with the decrease of MI, the molecular weight increases,the impact property and the resistance to environmental stresscracking improve. Eva is characterized by good flexibility,rubber-like flexibility, at-50 °c still has a good flexibility,transparency and surface gloss, good chemical stability, anti-agingand ozone strength, * * * . With the Filler of mixing, coloring andprocessing of good shape. The polarity of Acetate increases theelasticity and viscosity, decreases the crystallinity andelectrical properties, and dissolves in hydrocarbons andoils.