Polypropylene yas hloov kho

Kev ua tau zoo ntawm cov yas polypropylene muaj qee qhov tsis zoo, xws li kev ua haujlwm tsis zoo, tsis muaj zog, thiab kev laus tsis zoo. Yuav kom kov yeej cov kev tsis txaus no, kev hloov kho kev ntsuas feem ntau siv.

1. Kev hloov kho copolymerization

Copolymerization nrog vinyl chloride, acrylic acid thiab lwm yam monomers tuaj yeem txhim kho qhov txias tsis kam, flammability, thiab molding fluidity ntawm polypropylene.

2. muab kev hloov kho

Kev sib xyaw nrog lwm cov thermoplastics thiab elastomers los npaj cov khoom sib xyaw tuaj yeem txhim kho qhov txias tsis kam ntawm polypropylene.

3. Filling - Txhim kho kev hloov kho

Ntxiv cov fillers thiab reinforcements tsub kom lub rigidity ntawm polypropylene nyob rau hauv high kub thiab txo molding shrinkage.

4. stretch kev hloov kho

Los ntawm kev ncab, cov molecules yog taw qhia thiab cov neeg kho tshuab lub zog zoo dua. Piv txwv li, tom qab biaxial stretching ntawm polypropylene, lub zog yuav nce 3 zaug.

5. kev hloov pauv kev sib txuas

Cov qauv linear ntawm polypropylene yog cross-linked rau hauv lub network qauv, uas tuaj yeem txhim kho cov cua sov thiab lub zog txhua yam.