Puas yog polypropylene tshuaj lom thaum cua sov?

Polypropylene, tseem hu ua PP, yog cov thermoplastic resin thiab siab molecular polymer nrog zoo molding zog, siab yooj, thiab kub tsis kam. Nws yog dav siv hauv ntim khoom noj, lub raj mis mis, PP lub khob yas thiab lwm yam khoom siv niaj hnub xws li cov khoom noj khoom haus qib yas, nrog rau cov khoom siv hauv tsev, cov khoom siv tsheb thiab lwm yam khoom lag luam hnyav. Txawm li cas los xij, nws tsis yog tshuaj lom thaum rhuab.

Cua sov tshaj 100 ℃: Ntshiab polypropylene tsis muaj tshuaj lom

Nyob rau hauv chav tsev kub thiab ib txwm siab, polypropylene yog ib qho tsw, tsis muaj xim, tsis muaj tshuaj lom, ib nrab pob tshab granular khoom. Unprocessed ntshiab PP cov khoom siv yas feem ntau yog siv los ua cov hlua rau cov khoom ua si plush, thiab cov chaw ua si lom zem rau menyuam yaus kuj xaiv cov pob tshab PP ib nrab pob tshab los simulate xuab zeb castles rau cov menyuam yaus ua si nrog. Tom qab cov khoom PP ntshiab tau dhau los ua cov txheej txheem xws li melting, extrusion, tshuab moulding, thiab txhaj tshuaj molding, lawv tsim cov khoom PP ntshiab uas tsis muaj tshuaj lom nyob rau hauv chav tsev kub. Txawm tias thaum raug cua kub kub, ncav cuag kub siab tshaj 100 ℃ los yog txawm nyob rau hauv ib tug molten lub xeev, ntshiab PP cov khoom tseem muaj tsis muaj tshuaj lom.

Txawm li cas los xij, cov khoom PP ntshiab kuj tseem kim thiab muaj kev ua haujlwm tsis zoo, xws li lub teeb tsis zoo thiab oxidation tsis kam. Lub neej ntev tshaj plaws ntawm cov khoom PP ntshiab yog mus txog rau lub hlis. Yog li, feem ntau cov khoom PP muaj nyob rau hauv kev ua lag luam yog cov khoom sib xyaw polypropylene.

Cov cua kub siab tshaj 100 ℃: Polypropylene yas khoom yog tshuaj lom

Raws li tau hais los saum no, ntshiab polypropylene muaj kev ua haujlwm tsis zoo. Yog li ntawd, thaum ua cov khoom yas polypropylene, manufacturers yuav ntxiv lubricants, plasticizers, lub teeb stabilizers, thiab lwm yam khoom los txhim kho lawv cov kev ua tau zoo thiab txhim khu lawv lub neej. Qhov kub siab tshaj plaws rau kev siv cov khoom siv polypropylene hloov kho yog 100 ℃. Yog li ntawd, nyob rau hauv ib puag ncig cua sov ntawm 100 ℃, cov khoom hloov kho polypropylene yuav nyob twj ywm tsis muaj tshuaj lom. Txawm li cas los xij, yog tias qhov kub thiab txias tshaj 100 ℃, cov khoom siv polypropylene tuaj yeem tso cov yas thiab cov roj nplaum. Yog tias cov khoom siv no yog siv los ua khob, tais, lossis ntim khoom, cov khoom siv ntxiv no tuaj yeem nkag mus rau hauv cov zaub mov lossis dej thiab tom qab ntawd tau noj los ntawm tib neeg. Hauv cov xwm txheej zoo li no, polypropylene tuaj yeem dhau los ua tshuaj lom.

Seb polypropylene puas lom los yog tsis depends feem ntau ntawm nws daim ntawv thov Scope thiab cov xwm txheej nws raug rau. Hauv cov ntsiab lus, ntshiab polypropylene feem ntau tsis muaj tshuaj lom. Txawm li cas los xij, yog tias nws tsis yog polypropylene ntshiab, ib zaug qhov kev siv kub siab tshaj 100 ℃, nws tuaj yeem ua rau muaj kuab lom.