Shanghai Daoqin Plastics Co., Ltd.

         long glass fiber reinforced polypropylene (PP) (LGFPP) composite/compounding material tool has force property can excellent 良, dimensional stability good and high temperature resistance and other advantages, by is is in the future 以塑代钢 极佳材 material, can used for automotive, home appliances, tool, furniture, electronics electrical and other field/area. and short fiber reinforcement composite/compounding material versus ratio, long fiber reinforcement thermoplastic property composite/compounding material tool has more good comprehensive property can.

        但LGFPP oxygen index (LOI) (LOI) relatively low, easy 燃烧, 且燃烧 process hot amount large, from belt/tape large 火灾隐患. for LGFPP进行 flame retardant modified tool has important research value and application 意义.

         small in toward recommendation types flame retardant LGFPP formulation.

        膨胀 flame retardant LGFPP

        贵州 large 学, composite/compounding modified polymer engineering in and other using/adopting 季戊四 alcohol acid ester (PEPA) and poly amine poly acid salt (MPP)复配而 formed type flame retardant (IFR) for LGFPP composite/compounding material flame retardant, will 海泡石(SP) and IFR复配 for LGFPP composite/compounding material 进行协效 flame retardant.

        1. formulation

        PP: 45～70%;

        LGF: 30%;

        IFR:0～22%, PEPA/MPP =11/9;

        SP: 0～3%.

        2. made process/workflow

        3. flame retardant 效果

         solid 定IFR quality separation is 22%时, add 入SP效果如 table/sheet 2.

        4. force property can 变化情况

         add 入IFR rear composite/compounding system force property can has decline, again add 入SP rear force property can 进一步 decline. SP quality separation is 1% system force property can versus for relatively high, its tensile, flexural strength and notched impact strength versus for/regarding LGFPP/IFR flame retardant composite/compounding system separation decline 20.46%, 12.06% and 10.65%, decline degree versus for relatively small.  

         bromine, flame retardant LGFPP

        北京 aerospace chemical industry and other using/adopting bromine 二苯乙烷(ODOPE) and Sb2O3, add can 膨胀石墨(EG), used for flame retardant LGFPP.

        1. formulation

        2. made methods

         will PP, ODOPE, Sb2O3, EG按一定 ratio/proportion add to high speed mixed combined machine in, uniform mixed combined rear add to di screw extrusion machine in (temperature degree 250℃, screw speed 300r/min), 经 熔 melt blending, melt 进入LGF浸渍 mold (temperature degree setting 260℃), LGF经 dispersion, separation 浸渍, 经口模牵引拉出, water cold, dry, pelletizing, to flame retardant LGFPP pellets, rear injection molding formed Sample.

        3. flame retardant 效果

        4. other property can 变化情况