Braskem EVA VA2019A
乙烯醋酸乙烯共聚物
Braskem
产品说明:
VA2019A is a copolymer of Ethylene-Vinyl Acetate (EVA) with medium vinyl-acetate content. VA2019A is an easy processing product highly compatible with other thermoplastic and elastomeric resins, and mineral loads. Its elasticity is higher than the LDPE of the same MI. It presents excellent environmental stress crack resistance (ESCR) and low temperature brittleness. Compounds produced with VA2019A will be light, resistant to deformation and with color retention.
Application:
Crosslinked and/or expanded parts for several applications including compounds for footwear (sole, insoles, etc), toys and freebie industry, produced by injection molding. Polymeric blends.
产品说明 |
||||
VA2019A is a copolymer of Ethylene-Vinyl Acetate (EVA) with medium vinyl-acetate content. VA2019A is an easy processing product highly compatible with other thermoplastic and elastomeric resins, and mineral loads. Its elasticity is higher than the LDPE of the same MI. It presents excellent environmental stress crack resistance (ESCR) and low temperature brittleness. Compounds produced with VA2019A will be light, resistant to deformation and with color retention. |
||||
总体 |
|
|||
材料状态 |
|
|||
特性 |
|
|||
用途 |
|
|||
机构评级 |
|
|||
加工方法 |
|
物理性能 |
额定值 |
单位制 |
测试方法 |
比重 |
|
|
|
-- |
0.942 |
|
ASTM D792 |
-- |
0.940 |
g/cm³ |
ASTM D1505 |
熔流率(熔体流动速率) (190°C/2.16 kg) |
2.5 |
g/10 min |
ASTM D1238 |
抗环境应力开裂 (122°F, 0.0787 in, 100% Igepal, 模压成型, F50) |
> 300 |
hr |
ASTM D1693 |
醋酸乙烯含量 |
18.0 |
wt% |
|
硬度 |
额定值 |
单位制 |
测试方法 |
肖氏硬度 |
|
|
ASTM D2240 |
邵氏 A, 模压成型 |
90 |
|
|
邵氏 D, 模压成型 |
|
|
|
本公司承诺所售原料均为原厂原包假一赔十
东莞永大塑胶原料有限公司
主营产品:
塑胶原料 工程塑胶 聚酰胺 PA66耐磨损 PA66超韧耐寒级 PA66食品级 PA66加玻纤 PA66增韧级 PA66阻燃防火 POM聚甲醛 高粘度POM 坚韧级POM 耐磨损POM 高韧性POM 抗紫外线POM 加玻纤POM 低翘曲POM
工程塑胶:EVA、PC、POM、PA6、PA66、PEEK、COC、PBT、PET PC/ABS、PPS、PPO、LCP;PC
热弹性体:K胶、TPE、TPR、PVC、TPU、TPV、TPX、SBS;
通用塑胶:ABS、PMMA、PP、PE、AS、HDPE、LDPE。
特种料: PEI、PTFE、PVDF
本公司所销售之塑胶原料均可提供原厂的物性表,UL MSDS SGS COC 欢迎来电咨询!
备注:公司长期销售塑胶原料/原厂原包,25千克/包,符合ROHS认证标准,25千克起。质量有保证
EVA的主要特性
一. 特性
EVA树脂的特点是具有良好的柔软性,橡胶般的弹性,在-50℃下仍能够具有较好的可挠性,透明性和表面光泽性好,化学稳定性良好,抗老化和耐臭氧强度好,无毒性。与填料的掺混性好,着色和成型加工性好。
它和乙酸乙烯含量和分子量、熔体指数关系很大。当熔融指数(MI)一定,乙酸乙烯(VAC)含量提高时候,其弹性、柔软性、相溶性,透明性等也随着提高。当VAC含量减少时候,则性能接近于聚乙烯,刚性增高,耐磨性、电绝缘性提高,。若VAC含量一定时候,融体指数增加时,则软化点下降,加工性和表面光泽改善但强度会下降,否则,随MI的降低则分子量增大,冲击性能和抗环境应力开裂性能提高。
乙酸根的极性使弹性和粘性增大,结晶性和电性能下降,溶于烃类溶剂和油类。