Shanghai Daoqin Plastics Co., Ltd.

        谈 to machine outer housing/shell, large 家一定 non 常熟悉, for/regarding machine outer housing/shell material selection 想必也一定 non good 奇, 今天就 let 我们一起 聊聊手 machine outer housing/shell material selection.

        一, machine outer housing/shell material generally requirements

         strong/high degree high, heat resistant thermally conductive property good, flame retardant, tool has battery property.

         dimensions stability, appearance good and light amount thin and other.

         currently machine outer housing/shell commonly used material has PC, ABS以 and PC/ABS.

        二, different material features and selection 原则

        1, different material features:

        PC

         strong/high degree high, resistant tensile strength 69MPa, resistant flexural strength 96MPa.

         high temperature resistance, long use can resistant 130摄氏 degree temperature degree ring 境.

         transparent property good, 无毒.

         raw materials Color Matching and surface coating 不如ABS.

        PC应选 high flow property grade.

         suitable for cover/cap machine and in poor ring lower use machine.

        ABS

         strong/high degree low, resistant tensile strength 43MPa, resistant flexural strength 79MPa.

        不 resistant temperature, long use temperature degree high 于60摄氏 degree.

         flow property, color and surface spray coating and electroplating property can good.

        PC/ABS

        PC and ABS combined formed material, front features, tool has excellent molding processing properties, flow property good, strong/high degree relatively high (resistant tensile strength 56MPa, resistant flexural strength 86MPa). PC/ABS材 material main/primary used for sheet/plate machine and generally appearance, color color requirements high for ring 境无特殊 requirements cover/cap machine.

        2, material selection 原则:

         according to structure material selection

         structure strong/high degree relatively large, relatively thick, structure complex 时应首选PC/ABS.

        当 structure relatively mono thin, strong/high degree 不足时, 应选PC.

         according to appearance coating color color material selection:

        鲜艳, more color, for requirements 严格时, 应首选PC/ABS.

         for need appearance electroplating 时, 应选ABS. cover/cap machine and in poor ring 境(如 low temperature, has 振动, impact and other) lower use add solid type machine, selection PC材 material. sheet/plate machine material: PC and PC/ABS均 can use 时, 应首选PC/ABS.

        三, machine outer housing/shell material new 贵无卤 flame retardant PC/ABS

        随 直 sheet/plate machine 流行, PC/ABS自然 formed is machine outer housing/shell commonly used selection, 但随 科技 进步, for safety and environmental protection day high 涨, for material flame retardant property can and ring good property requirements 越 越 high. currently commonly used bromine ether and other flame retardant in material hot understanding and 燃烧时会 generate has property, property gas and a large amount of 烟雾而污染 ring 境, formed 二次公害, 欧盟2003 year RoHS and WEEE两 指令 颁布 more is made 传统卤系 flame retardant PC/ABS alloy in very more industry in application, especially is in recent years for machine outer housing/shell material flame retardant use made. therefore, research development high environmental protection type flame retardant PC/ABS alloy already day formed is flame retardant field/area research 焦点.

         commonly used flame retardant:

         made flame retardant engineering plastics commonly used methods has add type flame retardant technology and reaction type flame retardant technology, for/regarding PC/ABS alloy system, currently inner outer large using/adopting add type flame retardant technology. currently commonly used flame retardant has:

        无卤 flame retardant PC/ABS alloy development trend:

        随 PC/ABS engineering plastics alloy market demand amount expand large and for ring 境保护 day heavy 视, flame retardant PC/ABS alloy development already toward environmental protection 化, high property can 化, more function and system and other direction development. currently, flame retardant, silicon flame retardant and other flame retardant in PC/ABS alloy in has vast application outlook/prospects. still in 一 不足, and material versus property 不够理想, especially is impact strong/high degree, flame retardant property and processing properties balanced, still need 改进, certain flame retardant cost relatively high. therefore, is meet/satisfy flame retardant and environmental protection 两方面 requirements, how to 进一步 improve/increase flame retardant flame retardant and alloy comprehensive property can, development high environmental protection flame retardant and function property flame retardant material (如生 material biodegradable material) is currently research hot and focus/key point. can 看出, nano technology, micro 胶囊化 technology, 复配协同 technology, surface modified technology, versus technology and other flame retardant research development new technology will to development.