Dav Yas
Feem ntau yog hais txog plastics nrog cov zis loj, daim ntawv thov dav, zoo formability thiab nqi tsawg. Muaj tsib yam loj ntawm cov khoom siv dav dav, uas yog polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) thiab acrylonitrile-butadiene-styrene copolymer (ABS). Cov tsib pawg ntawm cov khoom siv plev feem ntau ntawm cov khoom yas yas, thiab tas yuav muab cais ua cov khoom tshwj xeeb xws li PPS, PPO, PA, PC, POM, thiab lwm yam., Uas siv rau cov khoom hauv lub neej txhua hnub. Nws yog siv rau kev ua haujlwm siab tshaj plaws xws li engineering, kev tiv thaiv thiab science thiab technology, xws li automotive, aerospace, kev tsim kho, thiab kev sib txuas lus. Plastics tuaj yeem raug tso npe rau hauv thermoplastics thiab thermoset raws li lawv cov kev faib tawm ntawm cov yas. Feem ntau, cov khoom siv thermoplastic yuav rov ua dua, thaum cov thermosetting uas ploj tsis tau. Raws li cov khoom kho qhov muag ntawm plastics, lawv muaj peev xwm raug muab faib ua lub pob tshab, translucent thiab opaque khoom xws li PS, PMMA, AS, PC, lwm yam. Feem ntau lwm cov plastics yog opaque plastics.
Hom ntau hom kev kawm thiab kev siv
1. Polyethylene: Feem ntau siv cov polyethylene tau muab faib ua cov tsawg ntom polyethylene (LDPE), high density polyethylene (HD)
Specialty plastics PE) thiab cov kab uas tsis tshua muaj kab mob polyethylene (LLDPE). Ntawm peb qho, HDPE tau zoo dua thermal, hluav taws xob thiab khoom kho tshuab, thaum LDPE thiab LLDPE tau zoo dua qhov yooj yim, yam khoom thiab zaj duab xis tsim cov khoom. LDPE thiab LLDPE tsuas yog siv rau kev ntim zaj duab xis, kev ua liaj ua teb, hloov kho yas, thiab lwm yam, thaum HDPE siv dav hauv ntau yam xws li cov yeeb yaj kiab, yeeb nkab thiab kev txhaj tshuaj txhua hnub.
2. Polypropylene: Feem ntau hais lus, polypropylene muaj ntau ntau yam thiab ntau txoj siv. Muaj ntau lub teb, xws li homopolypropylene, thaiv copolymer polypropylene (copp) thiab polyoloplasty polystyrene (rapp). Raws li kev siv sib txawv, homopolymerization yog siv rau hauv cov laj kab uas muaj hlau, hlau, txhaj tshuaj, BOPP zaj duab xis, thiab lwm yam. Copolymer polypropylene yog siv cov khoom siv hauv tsev, hloov cov khoom raw, cov khoom siv tshuaj txhua hnub, kav, thiab lwm yam. cov khoom pob tshab, cov khoom ua tau zoo, kev ua haujlwm siab, thiab lwm yam.
3. Polyvinyl chloride: Vim nws cov nqi qis, cov khoom muaj cov khoom ntiag tug ntawm cov khoom ntiag tug, yog li nws siv dav siv, tshwj xeeb tshaj yog rau cov kav dej, qhov rooj yas yas thiab qhov rais, cov tais, cov tawv tawv thiab lwm yam.
4. Polystyrene: Ua cov khoom siv pob tshab, nws siv tau ntau hom kev siv, xws li tsheb nqaj hlau tsheb, hnub ci, pob khob, cov kaus poom, lwm yam.
5. ABS: Nws yog ntau yam khoom siv hluav taws xob nrog ntau yam khoom thiab lub zog khoom. Nws yog siv rau hauv cov khoom siv hauv vaj hauv tsev, cov phiajcim, cov qhov ntsej, cov rooj sib txuas, khoom siv, thiab lwm yam, tshwjxeeb cov khoom siv hauv tsev xws li cov tshuab ntxhua khaub ncaws, cov cua txias, cov tub yees, cov kiv cua, thiab lwm yam. kev hloov kho yas.
