Shanghai Daoqin Plastics Co., Ltd.

1. antioxidant

1）受 retardant type antioxidant

受 retardant type antioxidant is application most antioxidant, generally as is antioxidant, and antioxidant combined use, has processing stability and long heat stabilized property, Common retardant type antioxidant has below/following types: antioxidant 1010, antioxidant 1076, antioxidant 1098, antioxidant 245, antioxidant 1330, antioxidant 3114 and other.

main/primary mechanism : 捕获 plastics degradation process in generate 自由基而 long 期持续 property resistant oxygen function.  

2）亚磷 acid ester type antioxidant

亚磷 acid ester type antioxidant belongs to 辅 antioxidant , and antioxidant combined use, processing stability has 效, 但亚磷 acid ester type antioxidant easy hydrolysis, generate black spots, 腐蚀, acid catalytic degradation and other issues. main/primary acid ester type antioxidant has IRGAFOS 168, IRGAFOS 38, IRGAFOS 126 and other.

main/primary mechanism : through separation understanding plastics 进一步 degradation generate oxidation material from to resistant oxidation 目, main/primary provide hot processing stability property .  

3）硫 ether type heat stabilized agent

硫 ether type heat stabilized agent features: long heat stabilized non has 效, processing stability property has 限, and antioxidant combined use, oxidation material can formed acid, and retardant amine light stabilizer has 反协同效应. Common product is: Irganox® PS 802:“DSTDP” R = C18H37

4）羟基 amine type antioxidant

羟基 amine type antioxidant meanwhile as is and antioxidant, 捕获 carbon 自由基 and carbon oxygen 自由基, in polyolefin in provide processing stability, and 酚/亚磷 acid ester system versus 当, resistant gas color.

5）五 type antioxidant processing stability property and long stability property comparison

2. light stabilizer

1）紫 outer absorption agent

principle : absorption outer 线, has 害 紫 outer can amount is hot can, and products thick degree has 关, 保护本体.

Common product : Chimassorb® 81, Tinuvin® 326, 328, 329, 234, 360, P, Tinuvin® 1577 FF, Tinuvin® 1600

2）受 retardant amine light stabilizer

principle : 捕获 has 害 自由基, light in active, and products thick degree 无关, meanwhile surface and 本体.

Common product : Tinuvin® 770, Uvinul® 4050FF, Tinuvin® 765, Uvinul® 5050H, Tinuvin® 622, Chimassorb® 944, Chimassorb® 2020 

注: （ low molecular weight retardant amine light stabilizer ） molecular weight (<1000), easy 迁移=> most combined thick products, （ polymer/macromolecule amount retardant amine light stabilizer ）, polymer/macromolecule amount (3000-4000), low 迁移, combined thin products (e.g. film, tape).

3） other light stabilizer

Tinuvin® XT 855: used for automotive industry TPO reaction light stabilizer

Tinuvin® XT 847: used for TPO anti water high property can light stabilizer

Tinuvin® XT 833: used for soft 质PVC high property can light stabilizer

Tinuvin® 1600: used for PC and other engineering plastics high property can light stabilizer

if 想知道 antioxidant and light stabilizer selection 原则 

3. flame retardant and polymer modifier

1) flame retardant

Flamestab® NOR 116 – polyolefin use flame retardant and Melapur® - engineering plastics use flame retardant  

Melapur® MC and Melapur® 200* function 效果:  

2） polymer modifier

Irgasurf® SR 100 – resistant scratch agent:

Irgastat® P – property anti-static agent: