Shanghai Daoqin Plastics Co., Ltd.

         polypropylene (PP) is currently use amount most large general purpose plastics 之一, relatively high crystallization degree to PP造 formed low temperature tough property 差, molding shrinkage large and 缺口敏感 property large and other disadvantages, in 一定程 degree upper made its more application. blending modified is PP toughened most has 效途径. it is utilizing between versus property or reaction blending principle, will types or types above polymer and additives in temperature degree lower machine blending, most formed types macro upper uniform, micro upper versus separation new material. through for PP blending property, can make its comprehensive property can large large improve/increase, from and engineering plastics and polymer alloy in more application areas competition.

        PP blending modified use main/primary blending material material and modified 效果如 lower table/sheet:

        接 lower is dry 货满满 specific modified formulation and process 啦!

        1, PP/LDPE blending modified

         formulation

         resin PP 100; compatibilizer PE-g-MAH 5;LDPE 20; lubricant HSt 0.3;

         processing process

         will PP and PE, compatibilizer and additives formulation ratio/proportion mixed combined, 搅拌, extrusion pelletizing, made formed modified material. extrusion machine material temperature degree is: 一段210℃, 二段215℃, 三段210℃; screw long ratio is 25: 1; screw speed is 120～160 r/min.

         property can

        PP and PE blending, can improvement PP tough property, increase large low temperature lower impact strong/high degree. formulation ratio/proportion blending material 屈服应 force 13.6MPa;屈服应变 rate is 12.3%, fracture force is 4.78MPa; fracture rate is 114.6%.

        2, PP/HDPE blending modified

         formulation

         resin PP 57.35; antioxidant 1076 0.2;HDPE 40;PEPQ 0.2; crosslinked agent 叔丁基 oxygen 基异丙苯0.15; processing additives hard acid 镁 0.1; filling agent silicon 灰石 2;

         processing process

         in normal temperature at atmospheric pressure, will separation formulation ratio/proportion in high speed mixed combined machine in mixed combined 10min, rear using/adopting di screw extrusion machine 进行熔 melt blending, extrusion pelletizing. extrusion temperature degree 150-220℃, screw speed is 300 r/min, pellet cutting, drying made PP/HDPE blending modified material.

         property can

         tensile strength 34.8MPa, 悬臂梁 impact strong/high degree 49.3J/m. material surface light 效果良 good, can used for packaging, day use product and construction material and other field/area.

        3, PP/LLDPE blending modified

         formulation

         resin PP(EPF30R) 60-70; titanium acid ester coupling agent (ND2-311)适 amount;LLDPE 15-20; antioxidant toughening agent POE(8150)5～10; light stabilizer amount; filling agent slip powder (average particle size 12μm) 10～15;

         processing process

         and other high speed mixed combined machine preheating 至110℃, add 入一定 amount machine filler, low speed 搅拌15min rear, separation add filler quality separation is 2% coupling agent, add coupling agent rear, high speed 搅拌5min, rear filler use. formulation ratio/proportion 准确称取PP, PE, POE, filler and other additives, mixed combined rear add di screw extrusion machine material in, extrusion pelletizing.

         extrusion temperature degree 190-220℃, screw speed 200r/min, material screw speed 20r/min. material drying rear injection molding formed products, injection temperature degree 190-210℃, injection molding and holding pressure pressure Mpa, pressure 6MPa.

         property can

         using/adopting PP and LLDPE blending, can improve/increase PP tough property and resistant ring force cracking property, meanwhile add POE进行 toughened, make blending material tough property large degree improve/increase; use slip powder increase rigid, ensure material has rigid property. its tensile strength ≥26MPa, fracture elongation ≥400%, bending elastic property modulus ≥1.6GPa, heat deflection temperature (HDT) ≥110℃, molding shrinkage 1.15%. product main/primary used as light type automotive inner sheet/plate material.

        4, super tough PP/POE blending modified

         formulation

         resin PP(K7726)329;PP(K8303)120;PP(2401)90; toughening agent POE(8150)256; antioxidant 1010 1.2; antioxidant DLTP 2.4; lubricant ZnSt 2.4; color agent 炭黑 0.5;

         processing process

        首先 will separation formulation ratio/proportion heavy, high speed mixed combined machine in low speed 搅拌1min, rear high speed 搅拌1min, material, di screw extrusion machine in, mixed combined extrusion pelletizing. di screw extrusion pelletizing using/adopting in and other strong/high screw combined, temperature degree is: 第一段180℃, 第二段195℃, 第三段210℃, 第四段220℃, 第五段235℃, machine 头230℃, screw speed 350r/min

         property can

         tensile strength 17MPa; fracture elongation 500%; flexural strength 18MPa; bending elastic property modulus 700MPa;悬臂梁 notched impact strength (normal temperature)750J/m, (-40℃)320J/m; heat deflection temperature (HDT) (1.82MPa)102℃.

        5, PP/HDPE/POE blending modified

         formulation

         copolymer type PP(M1600)30; filling agent CaCO3(400目)20; homopolymer type PP(V30G)15; titanium acid ester coupling agent 0.2;HDPE (8920)20;20 dispersant liquid wax 0.1; toughening agent POE 15;

         processing process

        先 will CaCO3 in 110℃ lower drying 4h, formulation ratio/proportion add high speed mixing/compounding machine in mixed combined 1min, rear add titanium acid ester coupling agent and dispersant low speed mixed combined 3min, surface active 化处理. active 化处理 目 in increase machine filler and resin between mixed solvent property. rear will PP, HDPE, POE and surface active 化处理 CaCO3 mixed combined uniform, mixed combined temperature degree is 100～105℃, time is 5min. most rear use φ58 di screw extrusion machine blending extrusion pelletizing. extrusion temperature degree 210℃, screw speed 140r/min.

         property can

         tensile strength is 18.5MP, fracture rate is 61%, notched impact strength 32.0kJ/m2. PP filling modified in slip powder reinforcement good 于CaCO3, tool has more high property and tough property maintain rate. and EPDM versus ratio, POE toughened more good 一.

        6, PP/HDPE/EPDM blending modified

         formulation

         resin PP 100; toughening agent EPDM 15%;HDPE 20; lubricant HSt 0.4;

         processing process

        按 formulation ratio/proportion will PP, HDPE, EPDM and lubricant add high speed mixing/compounding machine in, mixed combined uniform, mixed combined temperature degree is 100～105℃, time is 5min. rear use extrusion machine blending extrusion pelletizing. extrusion machine long ratio is 25: 1; material temperature degree is 一段170～175℃, 二段180～190℃, 三段200～210℃, 四段210～220℃; screw speed 60～100 r/min.

         property can

         tensile strength 27.5 MPa; flexural strength 34.2 MPa; notched impact strength 24.8KJ/m2. ternary 乙丙橡胶(EPDM) and PP tool has versus solvent understanding degree parameters and surface force value, can is tool has versus property, blending 时, to relatively good versus and toughened function.

        7, PP/HDPE/EVA blending modified

         formulation

         resin PP(powder material)100;EVA(VA content 18%)15; filling agent active property CaCO3(800目)30;HDPE(5000s)10; stabilizer BaSt 0.3; lubricant HSt 0.5;

         processing process

        按 formulation ratio will material material add high speed mixed combined machine in, high speed mixed combined 搅拌10min, material temperature 达90～100℃, make active property CaCO3 powder material, HDPE, EVA and PP powder material mixed combined uniform can material.

         will mixed combined good material material use φ45 extrusion machine extrusion, extrusion material strip/profile water cooling, gas cooling, again 经牵引进入 pellet cutting machine pellet cutting. extrusion machine material is: add material 段80-100℃, pressure shrink 段170～180℃, 均化段180～190℃, mold temperature degree 190℃; screw speed 60～120r/min.

         property can

         tensile strength 25.5MPa; flexural strength 38.9MPa; fracture elongation 255%; notched impact strength 9.1kJ/m2; heat deflection temperature (HDT) (18.6MPa)59℃. EVA modified PP material impact property can high, tough property good, gloss degree high, cost low, in engineering has vast application outlook/prospects.

        8, PP/PS blending modified

         formulation

         resin PP 100;PS 10; compatibilizer SBS 10; lubricant HSt 0.4;

         processing process

         will separation formulation ratio/proportion heavy, high speed mixed combined machine in mixed combined uniform, material, rear in extrusion machine in melt blending extrusion pelletizing. extrusion temperature degree 170-230℃.

         property can

        屈服 strong/high degree 29.2 MPa; fracture elongation 7%; elastic property modulus 1432MPa; impact strong/high degree 27kJ/m2.

        PP and PS is versus system, 而SBS add 入, decrease small dispersion versus dimensions, make system dispersion uniform, from to toughened versus function.

        9, PP/HIPS blending modified

         formulation

         resin PP 51.8; nucleating agent acid 钠 0.1;HIPS 18;二 ring 庚烷二羧 acid 钠 0.1; filling agent slip powder 30;

         processing process

         will separation formulation ratio/proportion amount, high speed mixed combined machine in mixed combined uniform, material, rear in di screw extrusion machine in melt blending extrusion pelletizing. extrusion temperature degree 190一210℃, screw D/L≥32.

         property can

        该材 material made automotive made parts property 膨胀系数 low, and tool has toward property, made parts dimensions stability, assembly small, meet/satisfy automotive in different temperature degree ring lower use.

        10, PP/PA66 blending modified

         formulation

         resin PP 100; compatibilizer PP-g-MAH 10;PA66 20; additives 0.2;

         processing process

         PP, PA and additives in high speed mixed combined machine in mixed combined 搅拌, rear extrusion pelletizing. mixed combined temperature degree 80-100℃, time 10min; extrusion temperature degree is 200-245℃, screw speed 60-120r/min

         property can

        PA66 and PP blending, make blending material in normal temperature and low temperature lower notched impact strength has relatively large improve/increase, in 掺入10%PP-g-MAH rear, blending material notched impact strength to 108.9J/m2; tensile strength 38.8MPa; elastic property modulus 1710Mpa; fracture elongation 37%.

        11, PP/PET blending modified

         formulation

         resin PP 100; nucleating agent 0.1;PET 15; compatibilizer PP-g-AA 5;

         processing process

         will separation formulation ratio/proportion amount, high speed mixed combined machine in mixed combined uniform, material, rear in extrusion machine in melt blending extrusion pelletizing. extrusion machine L/D is 25:1; material temperature degree 200-230℃, screw speed 60-100r/min.

         property can

         tensile strength 34.2MPa; flexural strength 63.1MPa. PET and PP blending, can improvement PET disadvantages, also can improve/increase, also can improve/increase PP impact strong/high degree and force property can. types resin property versus relatively large, PET is property polymer, PP is non property polymer, versus property 差. add 入PP- AA 5, can obvious improvement versus versus property.

        12, PP/PBT blending modified

         formulation

         resin PP 100;PBT 20; lubricant EBS 0.5; compatibilizer E/EA/GMA 5;

         processing process

         will separation formulation ratio/proportion amount, high speed mixed combined machine in mixed combined uniform, material, rear in extrusion machine in melt blending extrusion pelletizing. extrusion machine L/D≥20: 1; material temperature degree 190～230℃; screw speed 100～160r/min.

         property can

         tensile strength 37.2MP; flexural strength 76.5MPa; impact strong/high degree 10KJ/m2. PBT is property polymer, 而PP is non property polymer/macromolecule, between versus 容, using/adopting E/EA/GMA compatibilizer, improve/increase interface bonding force, to good versus function.

        13, PP/SBS blending modified

         formulation

         resin PP 100; toughening agent SBS 20; antioxidant 1520-D 0.4; lubricant EBS 0.2;

         processing process

         will separation formulation ratio/proportion amount, high speed mixed combined machine in mixed combined uniform, material, rear in extrusion machine in melt blending extrusion pelletizing. extrusion machine long ratio is 25: 1: extrusion temperature degree 155-215℃; screw speed is 100～160r/min.

         property can

        随 SBS add amount increase, blending material impact strong/high degree, fracture elongation improve/increase, tensile strength, flexural strength, modulus and hardness decline.

        14, PP/SBR blending modified

         formulation

         resin PP 60; crosslinked agent BP0 3; toughening agent powder 末丁苯橡胶(SBR) 14; lubricant hard acid 0.8; antioxidant 168 0.2; filler nano carbon acid 钙 20;β晶 nucleating agent 2

         processing process

         will PP, SBR and filler formulation ratio/proportion amount, high speed mixed combined machine in mixed combined uniform, material; will nucleating agent, crosslinked agent, antioxidant, lubricant formulation ratio/proportion amount, mixed combined uniform;然 rear will types mixed combined material add high speed mixed combined machine in 进行充 separation mixed combined, mixed combined good material material add to di screw extrusion machine in mixing/compounding, di screw extrusion machine extrusion cooling, through pellet cutting machine pelletizing. machine temperature degree: 一区195℃, 二区200℃, 三区205℃, 四区200℃, 五区195℃; screw speed is 300 r/min

         property can

         tensile strength 35.8MPa;断 elongation 12.3%, flexural strength 34.2MPa; notched impact strength 15.4KJ/m2.