PP (polypropylene) yog ib yam khoom yas uas siv ntau yam, nws tiv taus kub zoo, tiv taus tshuaj lom neeg, thiab tsis ntom heev. MFPP (modified polypropylene) yog ib yam khoom polypropylene uas muaj zog thiab tawv dua. Rau ob yam khoom no, tsab xov xwm no yuav muab kev qhia txog kev tshawb fawb txog cov khoom siv raw, cov txheej txheem npaj, cov yam ntxwv, thiab cov teb siv.
1. Cov khoom siv raw los ntawmPP thiab MFPPCov khoom siv raw ntawm PP yog npaj los ntawm polymerizing propylene hauv roj av. Propylene yog cov khoom lag luam petrochemical feem ntau tau los ntawm cov txheej txheem tawg hauv cov chaw ua roj. Cov polypropylene hloov kho MFPP txhim kho nws cov kev ua tau zoo los ntawm kev ntxiv cov khoom hloov kho rau PP ib txwm muaj. Cov khoom hloov kho no tuaj yeem yog cov khoom ntxiv, cov khoom sau lossis lwm yam khoom hloov kho uas hloov cov qauv polymer thiab cov khoom sib xyaw kom muab nws cov khoom zoo dua thiab cov tshuaj lom neeg.
2. Cov txheej txheem npaj ntawm PP thiab MFPP Kev npaj ntawm PP feem ntau yog ua tiav los ntawm cov tshuaj tiv thaiv polymerization. Propylene monomer yog polymerized rau hauv cov saw polymer ntawm ib qho ntev los ntawm kev ua haujlwm ntawm cov catalyst. Cov txheej txheem no tuaj yeem tshwm sim tas li lossis intermittently, ntawm qhov kub thiab txias siab. Kev npaj ntawm MFPP xav tau kev sib tov cov modifier thiab PP. Los ntawm kev sib tov yaj lossis kev sib tov kua, cov modifier tau sib npaug hauv PP matrix, yog li txhim kho cov khoom ntawm PP.
3. Cov yam ntxwv ntawm PP thiab MFPP PP muaj kev tiv taus cua sov zoo thiab kev ruaj khov tshuaj lom neeg. Nws yog ib qhoyas pob tshab nrog rau qee qhov tawv thiab rigidity. Txawm li cas los xij, lub zog thiab toughness ntawm PP ib txwm yog qis, uas ua rau kev qhia txog cov ntaub ntawv hloov kho xws li MFPP. MFPP ntxiv qee cov modifiers rau PP kom MFPP muaj lub zog zoo dua, toughness thiab impact resistance. Cov modifiers kuj tuaj yeem hloov cov thermal conductivity, hluav taws xob thiab huab cua resistance ntawm MFPP.
4. Cov teb siv PP thiab MFPP PP siv dav thiab feem ntau siv rau hauv cov thawv, rooj tog, khoom siv hluav taws xob thiab lwm yam khoom hauv lub neej txhua hnub. Vim nws tiv taus cua sov thiab tshuaj lom neeg, PP kuj siv rau hauv cov kav dej, thawv, qhov dej thiab lwm yam khoom siv hauv kev lag luam tshuaj lom neeg. MFPP feem ntau siv rau hauv cov ntawv thov uas xav tau lub zog siab dua thiab tawv, xws li cov khoom siv tsheb, cov khoom siv hluav taws xob, cov ntaub ntawv tsim kho, thiab lwm yam.
Hauv kev xaus lus, PP thiab MFPP yog ob qho sib xwscov khoom siv yasPP muaj cov yam ntxwv ntawm kev tiv taus cua sov, kev tiv taus tshuaj lom neeg thiab qhov ceev tsawg, thiab MFPP tau hloov kho PP ntawm qhov no kom tau txais lub zog zoo dua, kev tawv thiab kev cuam tshuam. Ob yam khoom no ua lub luag haujlwm tseem ceeb hauv ntau daim ntawv thov, coj kev yooj yim thiab kev txhim kho rau peb lub neej thiab ntau yam kev lag luam.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-04-2023
