Shanghai Daoqin Plastics Co., Ltd.

         high impact resistance polystyrene (PS) (PS-HI) tool has relatively good anti anti water property can, good force property can, molding processing properties and dimensional stability and other, widely used in use electrical appliances, electronics electrical appliances, office supplies and other industry.

         however, PS-HI oxygen index (LOI) (LOI) has 18%, belongs to easy material, process in melt 滴落严 heavy 且释放 a large amount of 黑烟, use PS-HI molding tool has anti requirements made parts 时, must flame retardant property can.

        PS-HI material flame retardant modified relatively long time development, already formed flame retardant, flame retardant, machine flame retardant and viscous flame retardant and other multiple product types type.

        卤系 flame retardant product technology most formed 熟, market application most 广泛, 但卤系 flame retardant material easy ring 境污染 issues, 随 人 type for environmental protection day 益关注.

        欧盟 made more is about/regarding flame retardant acrylonitrile – butadiene – styrene plastics recycling standards, full large flame retardant company 雅保, large 湖, bromine add large flame retardant development.

        卤系 flame retardant material in mold property large, gas more, material density large, cost high and other issues, low flame retardant material can very good this 不足, formed is market development demand.

        基于无卤 flame retardant technology current situation, if add easy formed polyphenylene oxide (PPO) (PPE) resin, relatively difficult development tool has market application value flame retardant grade is V-0 PS-HI.

         currently flame retardant PS-HI material is in V-2 flame retardant rating water 平, therefore is optimization flame retardant material flame retardant property can, development types low flame retardant PS-HI material.

        拿 good small 本本, made 样开始!

         will low MFR PS-HI resin, bromine flame retardant system, SBS toughening agent, made has machine formed agent and other table/sheet 1 formulation add high speed mixed combined machine in 先进行预 mixed, rear will mixed material di screw extrusion machine extrusion pelletizing.

         di screw extrusion machine machine temperature degree separation 10 段 control,

         temperature degree is 170~200℃,

        主 machine speed 1 000 r／min,

        喂 material speed 350 r／min.

         extrusion pelletizing made flame retardant material.

         will material in 80℃ conditions lower drying 2~3 h,

         through precision injection molding machine,

         its injection temperature degree is 180~200℃,

         injection molding formed standards Sample.

         according to upper methods, 想必您 already made 备出 一 lower property can excellent material.

        (1) formed agent tool has relatively good gas versus flame retardant function, can has reduce bromine flame retardant use amount, flame retardant rating to V-0 grade.

        (2) low flame retardant PS-HI material tool has relatively low density, relatively good heat stabilized property and high temperature creep property can, relatively light mold property, relatively low property thermal expansion coefficient, comprehensive property can excellent.

        (3) low flame retardant PS-HI material separation versus property good, tool has excellent force comprehensive property can, property comparison high.

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