Shanghai Daoqin Plastics Co., Ltd.

brief introduction

ethylene - acrylic ester copolymer （EMA）: is has high pressure α烯烃 copolymer in heat stabilized property most good types. as is mono material or mixed material, EMA in film, pressure 贴胶, sheet/slice 材. 模塑, blow molding, made tube/pipe type 材挤塑 and 共挤塑 and other field/area has very more applications. it can add 50% above filler effect/influence its elastic property, but also can and has polyolefin resin versus 容, can used as material resin.

chemical and property can

EMA is use high pressure reaction device production, acrylic ester mono and ethylene gas 体一起喷射进入 reaction device, reaction formed random copolymer. product EMA含 has  18～24%（wt） acrylic ester, use material melt flow index value is 0.5~20克/10 separation 钟. has specifications is pure resin, has specifications has slip and resistant adhesion material. is its processing properties, soft/flexible degree. bonding property can, positive in development its it formulation. EMA copolymer most value attention/notes property can improvement （ and LDPE homopolymer versus comparison ）包括: 维卡（Vicat） soft temperature degree from 194℉ decline is 138℉; flexural modulus decrease small; resistant ring force fracture property can significantly improve/increase; electrical property can reinforcement. type material for large more chemical product has good resistant force, is design as is in has machine solvent agent and acid in 连续浸泡之 use.

processing

using/adopting standards  LDPE film pressure production 线, in 约 325℉ temperature degree lower, very easy  EMA processing formed made film. made film has high impact strong/high degree, but also use hot equipment or frequency methods （RF） very easy make hot 熔接. this type material can in 惯常 挤 pressure temperature degree 600～620℉ lower 进行挤 pressure or pressure 贴胶. film, injection molding and blow molding processing temperature degree upper temperature degree scope/range inner, this 显示出 ethylene acrylic ester copolymer separation more processing properties.

made film tool has similar 乳胶橡胶 soft/flexible degree, very combined as one-time property sleeve/set and certain medical use product.

applications

according to   FDA and  USDA 规定, EMA meet/satisfy food packaging requirements. in use di oxygen water 卫生洗涤 liquid packaging 方面,  EMA也 already by can as hot and food surface 接触材 material. this category of material also combined use USP VI grade standards requirements.  EMA resin in 焚化时, 不会释放令人讨厌 material 质, 如卤素.

EMA film surface degree ratio type homopolymer LDPE high ． this features and it similar 乳胶橡胶 soft/flexible degree, make it very combined as one-time property sleeve/set and certain medical use product.

EMA is good pressure and 挤塑层 combined resin ． this is due to it has 天然良 good heat stabilized property, for commonly used bonding property, hot and frequency property can, but also can in is  LDPE design plant/unit upper processing.

EMA resin commonly used ring type and type film 模头进行共挤 pressure, in upper formed hot combined 层; or used as 连结层, polyolefin, ionomer, poly 脂, poly carbon 脂, EVA,  PVDC,  EAA,  OPET,  OPP  and other combined bonding property.

soft tube/pipe and type tool has excellent resistant force fracture property can and low temperature impact strong/high degree. foam sheet/slice can used for type or food packaging 方面.