PP (polypropylene) yog cov khoom siv yas uas muaj cov cua sov zoo, cov tshuaj tiv thaiv thiab tsis tshua muaj siab. MFPP (hloov polypropylene) yog cov khoom hloov kho polypropylene nrog lub zog muaj zog thiab tawv. Rau ob cov ntaub ntawv no, tsab xov xwm no yuav muab cov lus qhia nrov tshaj plaws ntawm cov khoom siv raw, txheej txheem kev npaj, yam ntxwv, thiab daim ntawv thov.
1. Cov khoom siv raw ntawm PP thiab MFPP Cov khoom siv raw ntawm PP yog npaj los ntawm polymerizing propylene hauv roj av. propylene yog cov khoom siv petrochemical feem ntau tau los ntawm cov txheej txheem tawg hauv refineries. Hloov kho polypropylene MFPP txhim kho nws cov kev ua tau zoo los ntawm kev ntxiv cov hloov kho rau PP zoo tib yam. Cov kev hloov pauv no tuaj yeem yog cov khoom siv ntxiv, cov khoom siv los yog lwm yam kev hloov pauv uas hloov cov qauv polymer thiab muaj pes tsawg leeg kom muab nws lub cev zoo thiab tshuaj lom neeg.
2. Kev npaj ntawm PP thiab MFPP Kev npaj ntawm PP yog ua tiav los ntawm cov tshuaj tiv thaiv polymerization. Propylene monomer yog polymerized rau hauv ib txoj hlua polymer ntawm ib qho ntev los ntawm kev ua ntawm cov catalyst. Cov txheej txheem no tuaj yeem tshwm sim tsis tu ncua lossis tsis tu ncua, ntawm qhov kub thiab txias. Kev npaj ntawm MFPP yuav tsum sib tov cov hloov kho thiab PP. Los ntawm melting tov los yog tov tov, lub modifier yog tusyees dispersed nyob rau hauv lub PP matrix, yog li txhim kho cov khoom ntawm PP.
3. Cov yam ntxwv ntawm PP thiab MFPP PP muaj cov cua sov zoo thiab kev ruaj ntseg tshuaj. Nws yog cov yas pob tshab nrog qee yam hardness thiab rigidity. Txawm li cas los xij, lub zog thiab lub zog ntawm cov PP zoo tib yam kuj tsis tshua muaj, uas ua rau kev nthuav qhia cov ntaub ntawv hloov pauv xws li MFPP. MFPP ntxiv qee qhov kev hloov kho rau PP kom MFPP muaj lub zog zoo dua, toughness thiab cuam tshuam tsis kam. Cov kev hloov pauv tuaj yeem hloov pauv cov thermal conductivity, hluav taws xob thiab huab cua tsis kam ntawm MFPP.
4. Daim ntawv thov teb ntawm PP thiab MFPP PP yog dav siv thiab feem ntau siv rau hauv cov thawv, rooj tog, khoom siv hluav taws xob thiab lwm yam khoom siv hauv lub neej txhua hnub. Vim nws cov cua kub tsis kam thiab tshuaj lom neeg, PP kuj tseem siv rau hauv cov kav dej, ntim, li qub thiab lwm yam khoom siv hauv kev lag luam tshuaj. MFPP feem ntau yog siv rau hauv cov ntawv thov kom muaj zog dua thiab tawv, xws li cov khoom siv tsheb, cov khoom siv hluav taws xob, cov khoom siv hauv tsev, thiab lwm yam.
Hauv kev xaus, PP thiab MFPP yog ob yam khoom siv yas. PP muaj cov yam ntxwv ntawm kev ua haujlwm kub, tshuaj tiv thaiv corrosion thiab tsis tshua muaj siab, thiab MFPP tau hloov kho PP ntawm lub hauv paus no kom tau txais lub zog zoo dua, toughness thiab cuam tshuam tsis kam. Ob cov ntaub ntawv no ua lub luag haujlwm tseem ceeb hauv ntau daim ntawv thov, ua kom yooj yim thiab txhim kho rau peb lub neej thiab ntau yam kev lag luam.
Post lub sij hawm: Nov-04-2023
