Shanghai Daoqin Plastics Co., Ltd.

(1) PPE-g-MAH材 material made 备.

will PPE resin, MAH, toughening agent and its it additives 按一定 ratio/proportion in high speed mixed combined machine upper mixed combined uniform, 投入同 toward di screw extrusion machine in, 经模头 extrusion, water cold, dry, pellet cutting. 1区至10区 extrusion temperature degree separation is 260, 260, 270, 280, 250, 250, 250, 250, 260, 280℃.

(2) PPE-g-MAH／PA66 blending material made 备.

will made good PPE-g-MAH and PA66 resin, its it additives ratio/proportion mixed combined uniform, according to 1区至10区 extrusion temperature degree separation is 260, 260, 270, 280, 250, 250, 250, 250, 260, 280℃ extrusion process pelletizing, blending material drying rear injection molding formed standards strip/profile, injection molding temperature degree is 260～300℃.

(1) different PPE-g-MAH／PA66 ratio/proportion for alloy force property can effect/influence.

table/sheet 1 and 图1 comparison different PPE-g-MAH／PA66 ratio/proportion for alloy force property can effect/influence. PA66 content increase, alloy tensile strength, flexural strength, bending elastic property modulus 呈现规律 property increase; alloy notched impact strength slow increase rear speed reduce, 当PA66 content in 50份时, alloy notched impact strength to most high value 310 J／m. causes is PA66 content increase, PPE-g-MAH and PA66 raw materials versus property 逐渐变 good, 当PA66 quality separation is 50%时, PPE-g-MAH and PA66 raw materials versus property most 佳, make PPE-g-MAH／PA66 alloy notched impact strength most high.

(2) different PPE-g-MAH／PA66 ratio/proportion alloy flow property can.

图2 is different PPE-g-MAH／PA66 ratio/proportion alloy flow property. 由图2 can 知, PA66 content increase, alloy MFR significantly increase, 由初始 5.6 g／10 min逐渐 increase to 140 g／10 min above. this is due to PPE raw materials is non type material, 玻璃化转变 temperature degree high 达210℃, extrusion processing molding difficult, MFR low; 而PA66 raw materials is crystallization type material, ultra- melting point rear, MFR high, easy processing molding. PA66 content increase, alloy in PPE content decrease/reduce, alloy flow property significantly increase. comprehensive material force property can and flow property can, selection PA66 in PPE／PA66 in quality separation is 50%.

(1) PA66 types type for alloy force property can effect/influence.

table/sheet 2 comparison different PA66 types type for alloy force property can effect/influence. table/sheet 2 出, PPE／PA66 EP–158 alloy material force property can most high, especially is material notched impact strength, 由PPE／PA66 21SPC 310 J／m improve/increase to 580 J／m, causes is PA66 EP–158 resin versus for its it resin PA66 21SPC and PA66 EPR24, its degree more large, and PPE-g-MAH in processing melt process in degree versus more easy formed “共熔 melt ”, versus property more good, from 而导致PA66 EP–158 alloy notched impact strength most high. PPE／PA66 EPR24 alloy tensile strength, flexural strength and bending elastic property modulus and PPE／PA66 21SPC alloy versus 当, notched impact strength decline obvious, main/primary is different PA66 resin and PPE-g-MAH reaction degree different 导致.

(2) PA66 types type for alloy flow property effect/influence.

different PA66 types type PPE／PA66 alloy MFR如图3 示. alloy MFR由 high to low is, PA66 EPR24>PA66 21SPC>PA66 EP–158. this can can is is although PA66 EPR24 and PA66 21SPC两款 resin degree in 2.4 left right, different company technology different, PA66 resin and PPE-g-MAH reaction degree 不一样, alloy MFR versus very large; 而PA66 EP–158 resin degree is 2.7, degree ratio its it resin PA66 21SPC and PA66 EPR24 黏 degree large, alloy flow property 差, MFR low.

考虑 notched impact strength most excellent, selection PA66 EP–158 resin, its in PPE／PA66 in quality separation is 50%.

upper alloy notched impact strength already to very high water 平, its MFR still high, in automotive industry certain complex structural parts in still method meet/satisfy use requirements, need 进一步 optimization alloy material flow property can.

lubricant is is improvement plastics in molding processing flow property and demolding property, from improve/increase products property can types additives. its function is reduce material material between and material material and processing equipment surface scratch force, from reduce melt flow retardant force, reduce melt degree, improve/increase melt flow property.

lubricant its formed separation is: type, acid type, aliphatic amine type, acid ester type, metal salt type and other.

(1) different lubricant types type for alloy property can effect/influence.

table/sheet 3 comparison different lubricant types type for alloy force property can effect/influence. table/sheet 3 can 看出, add types type type lubricant, material 各方面 force property can has different degree decline. its in, add aliphatic amine type lubricant C, alloy material force property can versus for relatively good, notched impact strength can maintain in relatively scope/range inner, add its it lubricant, notched impact strength decline obvious.

(2) different lubricant types type for alloy flow property effect/influence.

3 types different lubricant types type for alloy MFR effect/influence 如图4 示. 由图4 can 见, add lubricant rear, alloy MFR has large degree improve/increase, aliphatic amine type alloy MFR improve/increase most obvious, 由原 30 g／10 min improve/increase to 65 g／10 min. causes is in PPE-g-MAH／PA66 alloy system in, PA66基体 is versus, add amine type lubricant rear, lubricant in amine and PA66 resin in amine structure versus 近, according to versus versus principle, lubricant and alloy material versus property can can most good, from improve/increase PPE／PA66 alloy material flow property more is significantly.

综 upper 述, through excellent quality separation is 50% PA66 EP–158 and selection aliphatic amine type lubricant C, alloy force property can especially is notched impact strength and flow property can, formed application in automotive industry complex structural parts in.

(1)熔 melt blending extrusion made PPE-g-MAH, through adjustment PPE-g-MAH／PA66 ratio/proportion, 当PA66 quality separation is 50%时, alloy notched impact strength can to most large value;

(2) through 筛选PA66 types type, excellent degree is 2.7 PA66 EP–158 rear, alloy notched impact strength most high, flow property reduce;

(3) is 进一步 improve/increase PPE／PA66 alloy flow property, through different type type lubricant, add aliphatic amine type lubricant in obvious reduce alloy force property can lower, can large degree improve/increase alloy material flow property can, 由原 30 g／10 min improve/increase to 65 g／10 min. from made high toughness high flow property PPE／PA66 alloy.