Shanghai Daoqin Plastics Co., Ltd.

         plastics made parts surface 喷漆处理 can to appearance, meanwhile can to 保护, anti function, in home appliances and electrical electronics and other field/area already application.

        喷漆 process process/workflow is: 喷底漆+烘烤→喷面漆+烘烤+UV solid 化. coating color, gloss, product surface defects, UV面 coating main/primary use improves film gloss degree, degree, increase surface hardness and slip property.

        但随 electronics electrical appliances product application, electrical appliances PC recycling material day increase more, for PC impact property can relatively 差, easy force cracking disadvantages, group corporation has company 邵景昌, 王怡博 and other for belt/tape has film PC零部 parts recycling material toughened, research 底漆漆 film, 面漆漆 film for recycling material effect/influence.

        漆 film spray coating and separation

         design polycarbonate (PC) (PC) parts positive 反两面 separation spray coating or 面漆以 and 一层底漆漆 film, 一层面漆漆 film. coating rear parts 经破碎 machine rear in di screw extrusion machine upper 进行熔 melt pelletizing, comparison.

        底漆主 formed separation is polymethyl methacrylate (PMMA) (PMMA), has less separation color use metal powder. 面漆主 formed separation is hot solid property acrylic resin.

        底漆 and and spray coating for recycling material property can effect/influence

        底漆 in property PMMA and PC versus property relatively low, outer add film in machine metal powder effect/influence, make recycling material force property can decline;以 hot solid property acrylic resin is 主 面漆不熔不 solvent, 以杂质形式 dispersion in PC in, recycling material force property can decline. recycling material can 燃指数都没 has to film effect/influence.

         using/adopting toughening agent and compatibilizer is what?

         methacrylic acid ester – butadiene – styrene plastics (MBS) is “核– housing/shell ” structure, housing/shell is and PMMA versus property good MMA, 且MBS and PC也 tool has interface versus function, using/adopting MBS做 toughening agent.

         increase agent maleic anhydride grafted styrene – acrylonitrile copolymer (SAN-g-MAH) is ring maleic anhydride grafted combined material, and PC, MBS均 tool has versus property, improve/increase separation versus property.

         toughened rear how to?

        当MBS添 add amount 达8%时, can property 指数出现不 combined 格. in MBS极限添 add amount 6%基础 upper, add 2% increase agent SAN-g-MAH(lower table/sheet in 6+2 示) can 进一步 improves recycling material comprehensive force property can, can ensure can property combined 格.

         right upper is add 6% MBS and 2% SAN-g-MAH modified recycling material 断面显 micro 形貌, 断面十 separation uniform, small 而密 孔洞, formed relatively is 均一 互穿互锁网状“ sponge ” versus system. 进一步 improves MBS toughened 效果, recycling material force property can to obvious improves.