Dab tsi ntawm cov khoom siv tuaj yeem muab ntxiv rau cov khoom siv polypropylene pp los ua kom muaj qhov nyuaj? 发音 发音

1.Direct reinforcement ntawm cov iav fiber;

2.Grafting polypropylene thiab polypropylene nrog txiv neej anhydride (PP-G-MAH) thiab tom qab ntawd ntxiv dag zog nrog iav fiber;

3. Cov polypropylene tau hloov kho (sib xyaw ntawm cov tshuaj pleev) thiab tom qab ntawd ua kom muaj zog nrog cov iav fiber ntau.