Nyob rau hauv lub plastics kev lag luam thiab ntau lwm thaj teb, ntxiv rau thiab masterbatches ua lub luag haujlwm tseem ceeb. Nkag siab txog lawv cov kev faib tawm yog qhov tsim nyog rau cov kws ua haujlwm hauv kev lag luam ntsig thiab cov neeg xav tau kev pab.
Muaj ntau ntau hom kev sib ntxiv, thiab nws yog qhov tseem ceeb tshaj plaws kom cais lawv los ntawm kev pom ntawm kev ua haujlwm. Qhov thib ib yog tshuaj ntxiv additives, uas yog hom feem ntau. Nws lub luag haujlwm tseem ceeb yog qhov kev loj hlob thiab luam ntawm cov microorganisms, yog li txuas lub txee lub neej ntawm cov khoom. Benzoic acid thiab nws cov ntsev, poov tshuaj sorbate, thiab lwm yam. Thaum siv kev sim, lawv muaj kev nyab xeeb thiab txhim khu kev qha, tab sis yog tias siv cov tshuaj tiv thaiv tib neeg, yog li lawv muaj kev ntsuas cov khoom muaj kev nyab xeeb.
Antioxidant additives yog ib qho tseem ceeb tseem ceeb, tsuas yog siv los tiv thaiv cov oxidation thiab tsis zoo ntawm cov roj thiab cov rog hauv cov khoom lag luam, thiab cov khoom lag luam tshiab. Cov uas muaj xws li BHA, BHT, thiab lwm yam Cov tshuaj antioxidant no tsis tuaj yeem tsuas yog txhim kho qhov tsw thiab qhov zoo ntawm cov khoom.
Thickener thiab emulsifier additives tuaj yeem txhim kho kev ntxhib los thiab saj ntawm cov khoom. Thickeners tuaj yeem nce viscosity thiab saj ntawm cov khoom, xws li gelatin thiab pectin; Emulsifiers tuaj yeem sib xyaw roj thiab dej ua ke kom cov khoom lag luam ntau dua thiab cov khoom noj, dej haus, dej qab zib, dej khov thiab khoom noj.
Kuj tseem muaj cov khoom noj khoom haus kom zoo, uas tuaj yeem ua rau cov khoom noj muaj txiaj ntsig ntawm cov khoom lag luam, xws li cov vitamins thiab minerals. Kev siv cov zaub mov noj kom zoo tshwj xeeb yog qhov tshwj xeeb thaum ua cov zaub mov rau cov pab pawg tshwj xeeb xws li cov zaub mov thiab cov menyuam yaus cov zaub mov.
Tsis tas li ntawd, muaj lwm hom kev sib ntxiv xws li cov xim, tsw qab, thiab cov neeg sawv cev ua kom pom tseeb. Colorants tuaj yeem txhim kho cov tsos thiab cov xim ntawm cov khoom lag luam, tsw qab tuaj yeem ntxiv cov tsw qab rau cov khoom lag luam, thiab cov tshuaj pleev leastreting tuaj yeem ua cov khoom muag muag muag. Lawv ua lub luag haujlwm tseem ceeb hauv kev sib txawv.
Nrog rau kev txhim kho kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho tib neeg cov cai kom ua rau cov khoom lag luam zoo, cov khoom ntxiv tshiab yog qhov tshwm sim tas li. Piv txwv li, qee qhov ntuj tsoos ulualitives hloov ib txwm muaj kev sib ntxiv ntawm kev sib ntxiv, xws li cov xim ua ke thiab cov tsw qab. Cov kev sib ntxiv ntuj no tsis tsuas yog saj zoo dua thiab muaj txiaj ntsig zoo, tab sis kuj tseem ua tau raws li cov neeg xav tau kev tiv thaiv kev noj qab haus huv thiab ib puag ncig.
Masterbatches tseem muaj cov qauv sib cais sib txawv. Raws li cov khoom lag luam sib txawv, cov masterbatches tuaj yeem faib ua polypropylene masterbatches, etc. Cov khoom sib txawv ntawm cov khoom sib txawv. Los ntawm kev ua haujlwm ntawm kev pom, muaj muab tub lim cov masterbatches, uas tuaj yeem txhim kho lub hardness, rigidity thiab lwm yam khoom ntawm cov khoom; Kuj tseem muaj xim kom zoo-txhim kho masterbatches, uas yog siv los muab cov khoom lag luam ib qho xim tshwj xeeb. Masterbatches tuaj yeem yooj yim ntxiv ntau cov additives hauv kev ua yas ua los txhim kho kev ua haujlwm thiab cov khoom zoo.
Qhov kev faib tawm ntawm cov quav ntxiv thiab masterbatches yog nplua nuj thiab ntau yam. Ntau hom kev sib ntxiv thiab masterbatches ua si lawv tus kheej cov haujlwm tshwj xeeb hauv cov chaw sib txawv, txhawb nqa kev txhim kho thiab kev nce qib ntawm kev lag luam.
