美国杜邦EVA 210W|EVA发泡鞋材料
¥16.50
EVA 260美国杜邦原材料VA含量28%
¥18.00
PC沙林杜邦2601（PC吹塑挤出级）
¥65.00
PA66美国杜邦FR50(阻燃无卤FR50)耐高温
¥45.00
PA66美国杜邦FR10（PA66阻燃原材料）
¥45.00
薄膜级EVA 150W美国杜邦|EVA高抗冲 高韧性
薄膜级EVA 150W美国杜邦|EVA高抗冲 高韧性
【华韵总代理商】EVA 220美国杜邦VA含量28熔指150适合掺混树脂用 热熔胶粘合剂原料
【华韵总代理商】EVA 260美国杜邦VA含量28熔指6适合掺混树脂用 热熔胶粘合剂原料
【华韵总代理商】EVA 250美国杜邦VA含量28熔指25适合掺混树脂用 热熔胶粘合剂原料
【华韵总代理商】EVA 210美国杜邦VA含量28熔指400适合掺混树脂用 热熔胶粘合剂原料
【华韵总代理商】EVA 40W日本三井VA含量40熔指65适合掺混树脂用 热熔胶粘合剂原料
【华韵总代理商】EVA 220W美国杜邦VA含量28熔指150适合掺混树脂用 热熔胶粘合剂原料
【华韵总代理商】EVA 150美国杜邦VA含量33熔指30适合掺混树脂用 热熔胶粘合剂原料
【华韵总代理商】EVA 550日本三井VA含量14熔指15
【华韵总代理商】EVA 560日本三井VA含量14熔指3.5
【华韵总代理商】EVA 450日本三井VA含量19熔指8
【华韵总代理商】EVA 460日本三井VA含量14熔指2.5
【华韵总代理商】EVA 360日本三井VA含量25熔指2
【华韵总代理商】EVA 420日本三井VA含量19熔指150
Huayun plastic company Eva Plastic Eva is Ethylene-Vinyl Acetate Copolymer, it is made by Ethylene (e) and Vinyl Acetate (VA) copolymerization, English name: Ethylene Vinyl Acetate, or Eva, or e / Vac. The content of Vinyl Acetate (VA) is 5% ~ 40% . Compared with polyethylene, Eva has lower crystallinity, higher flexibility, higher impact resistance, higher filler miscibility and better heat sealing performance because of introducing vinyl acetate monomer into the molecular chain. Generally speaking, the performance of Eva Resin depends on the content of vinyl acetate in the molecular chain. The higher the content of VAC (VA content) , the higher the transparency, softness and toughness of VAC will be. Polymerization methods are high pressure bulk polymerization (for plastics) , solution polymerization (PVC processing AIDS) , emulsion polymerization (adhesives) , suspension polymerization. Vinyl Acetate (VA) content is more than 30% by emulsion polymerization, vinyl acetate content is low by high-pressure bulk polymerization. First, the characteristics of Eva Resin is characterized by good flexibility, rubber-like elasticity, at-50 °C can still have a good flexibility, transparency and surface gloss, good chemical stability, anti-aging and ozone strength, non-toxic. Good mixing property with Filler, good coloring and forming processing property. It is closely related to the content of Vinyl Acetate, molecular weight and melting index. When the melting index (Mi) is constant and the content of Vinyl Acetate (Vac) is increased, the elasticity, softness, solubility and transparency of VAC are also improved. When the VAC content is reduced, the performance is close to polyethylene, rigidity is increased, wear resistance, electrical insulation is improved. If the VAC content is constant, the softening point will decrease, the workability and surface gloss will be improved, but the strength will decrease. Otherwise, the molecular weight will increase with the decrease of MI, the impact property and the resistance to environmental stress cracking will be improved. The polarity of Acetate increases the elasticity and viscosity, decreases the crystallinity and electrical properties, and dissolves in hydrocarbon solvents and oils.
薄膜级EVA 150W美国杜邦|EVA高抗冲 高韧性
薄膜级EVA 150W美国杜邦|EVA高抗冲 高韧性
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