Dab tsi yog Cov Khoom Raw Rau Cov Khoom Siv Yas?

Cov khoom siv raw rau cov khoom yas feem ntau yog los ntawm kev lag luam petrochemical. Lawv cov ntsiab lus tseem ceeb yog cov khoom siv hluavtaws, ntxiv los ntawm cov khoom siv ntxiv, muab tub lim, plasticizers, thiab lwm yam khoom siv. Tam sim no, muaj ntau hom khoom siv raw rau cov khoom yas ntawm lub khw. Cov hauv qab no yog cov lus piav qhia ntxaws raws li kev faib cov khoom siv raw thiab cov yam ntxwv ua haujlwm:

 

Core Raw Khoom: Synthetic Resin
Synthetic resin yog qhov tseem ceeb ntawm cov khoom yas, suav txog 70% -90% ntawm tag nrho cov khoom siv raw. Nws hom ncaj qha txiav txim siab qhov ua tau zoo ntawm cov yas. Common resins muaj xws li:

Polyethylene (PE): Polymerized los ntawm ethylene monomers, muab faib ua low-density polyethylene (LDPE) thiab high-density polyethylene (HDPE). LDPE yog mos.

Polypropylene (PP): Ua los ntawm propylene, nws muaj qhov kub thiab txias tsis kam.

Polyvinyl chloride (PVC): Ua los ntawm polymerizing vinyl chloride, nws los ntawm cov ntaub ntawv nruj thiab hloov tau.

Polystyrene (PS): Muab faib ua dav dav -lub hom phiaj polystyrene (GPPS) thiab nthuav dav polystyrene (EPS). GPPS muaj pob tshab siab.

Engineering Plastics: Xws li polycarbonate (PC) thiab acrylonitrile-butadiene-styrene copolymer (ABS), uas muaj zog thiab kub tsis kam.

 

 

Cov khoom siv ntxiv: Cov khoom siv ntxiv thiab cov filling

Txhawm rau txhim kho cov khoom ntawm cov yas, cov khoom siv hauv qab no tau ntxiv:

Plasticizers: Txo cov tawv tawv ntawm cov yas thiab txhim kho lawv qhov yooj; Feem ntau siv hauv cov khoom siv PVC hloov tau.

Stabilizers: Tiv thaiv kom tsis txhob decomposition ntawm cov yas thaum ua los yog siv.

Fillers: Txo cov nqi thiab txhim kho kev ua haujlwm.

Colorants: Muab cov xim yas; muab faib ua organic dyes thiab inorganic pigments.

Nplaim retardants: Txhim kho qhov hluav taws kub ntawm cov yas.

 

Raw Material Selection thiab Industry Standards

Kev xaiv cov khoom siv raw rau cov khoom yas yuav tsum tau ua tib zoo xav txog cov kev xav tau ntawm kev ua haujlwm, tus nqi, thiab ib puag ncig yuav tsum tau ua:

Kev Ua Tau Zoo: Rau siab -kub tsis kam, PP lossis PC nyiam dua; rau pob tshab, GPPS lossis PC yog qhov tsim nyog dua.

Kev Txhim Kho Tus Nqi: Feem ntau- cov khoom lag luam feem ntau siv LDPE, thaum siab - cov khoom kawg siv ABS lossis PC.

Kev ua raws li ib puag ncig: EU RoHS cov lus qhia txwv tsis pub muaj cov khoom phom sij xws li txhuas thiab mercury; Cov ntaub ntawv tiv tauj zaub mov yuav tsum ua raws li FDA cov qauv.

Recyclability: Cov ntaub ntawv xws li PE, PP, thiab PET muaj cov khoom siv rov ua dua tshiab.