Shanghai Daoqin Plastics Co., Ltd.

  rigid degree ” is material 体发生 mono 位形变时 need force large small; “柔 degree ”则指 material in mono force lower 发生 形变 large small. “ rigid degree ”越 large, 越不容 easy deformation; “柔 degree ”越 large, easy deformation. tough property good material comparison soft/flexible, tensile fracture elongation, impact resistant strong/high degree relatively large, hardness, tensile strength and tensile elastic property modulus relatively small.

from above can 看出, rigid degree and tough property for 立态, for modified plastics products 而言, 两者会 versus 互依存. use glass fiber reinforced plastics rear, it rigid property large meanwhile, can can tensile strength and impact strong/high degree increase.

how to improve/increase plastics tough property

through for plastics products testing 发现, improve/increase resin tough property has improve/increase toughened plastics toughened 效果. toughened very more, ratio increase large resin molecular weight, make molecular weight distribution narrow small, or control is crystallization and crystallization degree, dimensions and type and other methods high toughness.

how to separation plastics commonly used toughening agent?

橡胶 elastomer toughened

EPR（ binary 乙丙）, EPDM（ ternary 乙丙）, 顺丁橡胶（BR）, 天然橡胶（NR）, 异丁烯橡胶（IBR）, 丁腈橡胶（NBR） and other; suitable for has plastics resin toughened modified;

thermoplastic property elastomer toughened

SBS, SEBS, POE, TPO, TPV and other; more used for polyolefin or non property resin toughened, used for polyester type, polyamide (PA) type and other has property can polymer toughened add compatibilizer;

核- housing/shell copolymer and reaction type terpolymer toughened

ACR（ acrylic ester type ）, MBS（ acrylic ester - butadiene - styrene copolymer ）, PTW（ ethylene - acrylic ester — methacrylic acid sink marks ester copolymer ）, E-MA-GMA（ ethylene - acrylic ester — methacrylic acid sink marks ester copolymer ） and other; more used for engineering plastics 以 and high temperature resistance polymer/macromolecule alloy toughened;

high toughness plastics blending toughened

PP/PA, PP/ABS, PA/ABS, HIPS/PPO, PPS/PA, PC/ABS, PC/PBT and other; polymer/macromolecule alloy technology is made high toughness engineering plastics important 途径;

its it methods toughened

nano pellets toughened （如 nano CaCO3）, Surlyn resin （ DuPont metal ionomer ） toughened and other.

from principle upper 讲, toughened essence can is increase 容. if toughening agent as type polymer, can this type of increase principle to has polymer/macromolecule blending material in. industrial upper made has use polymer blending material 时, reaction property increase is 我们必 must need use technology, toughening agent therefore has 不一样 意义, positive is 如此, has “ toughened compatibilizer ”, “ interface emulsification agent ” 形象称谓!

how to high impact resistance property can

as is engineering plastics, 我们希望 it meanwhile tool has good tough property and rigid property. in improvement material tough property 时, also method high rigidity.

generally lower add machine filler can increase rigid property. most has methods is will elastomer toughened and filler reinforcement combined 起.

impact resistant property can is industrial upper certain important plastics property can defect. 如PVC, PS, PP and other, especially in low temperature impact resistant property can low make its application to made. however in thermoplastic property plastics in, through add “ impact modifier ”就 can large large improve/increase it impact resistant property can.

impact modifier product types:

commonly used has ACR- acrylic ester type resin, MBS- methacrylic acid ester - butadiene - styrene copolymer, CPE- chlorine polyethylene (PE), ABS, EVA, EPT- ternary 乙丙胶 and other.

from plastics products modified 效果 看, ACR is comprehensive property can most good type;

MBS is transparent products important impact modifier, in full impact modifier market in has important 位.

impact modifier although can improve/increase impact strong/high degree, for other machine strong/high degree has effect/influence.

如MBS add 入PVC in make tensile strength and flexural strength decline. ACR add 入, make HPVC- polymer/macromolecule amount PVC tensile strength, hardness and heat resistant property has decline. CPE add 入, make blending material tensile strength, flexural strength, soft decline. therefore use impact modifier 时, must other property can, comprehensive 考虑. 以确定 combined use amount.