Xov xwm

PP pawg thawj coj saib xyuasyog ib yam khoom siv semi-crystalline. Nws nyuaj dua thiab muaj qhov melting point siab dua PE. Vim tias qhov kub ntawm homopolymer PP yog brittle heev saum 0C, ntau cov khoom siv PP lag luam yog cov copolymers random nrog 1 txog 4% ethylene lossis clamp copolymers nrog cov ntsiab lus ethylene ntau dua. Me me, yooj yim rau weld thiab ua, nrog kev tiv thaiv tshuaj lom neeg zoo dua, tiv thaiv kub thiab cuam tshuam, tsis muaj tshuaj lom thiab tsis muaj saj, nws yog ib qho ntawm cov yas PP engineering uas ua tau raws li cov kev cai tiv thaiv ib puag ncig. Cov xim tseem ceeb yog dawb, xim microcomputer, thiab lwm yam xim kuj tuaj yeem hloov kho raws li cov neeg siv khoom xav tau. Ntau yam kev siv: cov khoom siv tiv taus kua qaub thiab alkali.

Cov iav fiber reinforced PP board (FRPP board): Tom qab tau txhawb nqa los ntawm 20% iav fiber, ntxiv rau kev tswj hwm qhov kev ua tau zoo thawj, lub zog thiab kev nruj yog ob npaug piv rau PP, thiab nws muaj kev tiv thaiv kub zoo thiab tsis tshua muaj kev cuam tshuam kub, Tiv thaiv corrosion arc, tsis tshua muaj shrinkage. Tshwj xeeb tshaj yog haum rau tshuaj fiber, chlor-alkali, roj av, dyestuff, tshuaj tua kab, khoom noj, tshuaj, kev lag luam lub teeb, metallurgy, dej phwj kho thiab lwm yam teb.

PPH pawg thawj coj saib xyuas, beta (β)-PPHdaim ntawv tsis yog ntaub uas muaj ib sab xwb. (β)-PPH cov khoom muaj kev tiv thaiv kub thiab oxygen zoo heev, lub neej ntev thiab cov khoom siv kho tshuab zoo. Nws tau siv tau zoo hauv kev tsim cov phaj, thiab cov thev naus laus zis siab heev yog cov thawj coj hauv Suav teb. Cov khoom no tuaj yeem siv rau cov phaj lim thiab cov thawv kauv, rau cov iav fiber reinforced yas winding lining boards, petrochemical kev lag luam cia khoom, kev thauj mus los thiab tiv thaiv xeb, cov chaw tsim hluav taws xob, kev muab dej, kev kho dej thiab cov dej ntws rau cov chaw tsim dej; thiab cov chaw tsim hlau, cov chaw tsim hluav taws xob tshem tawm plua plav, ntxuav thiab cua tshuab, thiab lwm yam.