Daim ntawv thov tseem ceeb tshaj plaws ntawm cov khoom siv hluavtaws yog kev tsim cov yas. Txhawm rau pab txhawb kev ua haujlwm thiab txhim kho kev ua haujlwm, cov khoom siv ntxiv yog feem ntau ntxiv, qee zaum siv ncaj qha rau kev ua thiab kev tsim, yog li nws feem ntau yog txuam nrog yas. Cov ntsiab lus ntawm hluavtaws cob hauv plastics feem ntau yog 40-100 feem pua . Vim tias cov ntsiab lus loj, thiab qhov xwm txheej ntawm cov resin feem ntau txiav txim siab txog cov khoom ntawm cov yas, tib neeg feem ntau suav hais tias cov resin yog ib lub ntsiab lus ntawm cov yas. Piv txwv li, confuse polyvinyl chloride resin nrog polyvinyl chloride plastics, thiab phenolic resins nrog phenolic plastics. Qhov tseeb, resin thiab yas yog ob lub ntsiab lus sib txawv. Resin yog ib qho tsis tau ua tiav cov polymer uas tsis yog siv los ua cov yas, tab sis kuj yog cov khoom siv raw rau txheej, nplaum, thiab hluavtaws fibers. Ntxiv rau qhov me me ntawm cov yas uas muaj 100 feem pua cov resin, feem ntau cov yas yuav tsum tau ntxiv lwm cov tshuaj ntxiv rau cov khoom tseem ceeb.
Synthetic resin tseem yog cov khoom siv raw khoom siv rau kev tsim cov hluavtaws fibers, xim, nplaum, cov ntaub ntawv insulating, thiab lwm yam, thiab cov pob zeb siv dav siv kuj siv hluavtaws cob ua cov khoom siv cementing. Vim tias cov khoom siv hluavtaws muaj qhov ua tau zoo thiab cov nqi zoo piv nrog lwm cov ntaub ntawv sib tw, nws daim ntawv thov tau nkag mus rau txhua yam ntawm kev lag luam hauv tebchaws. Ntim yog lub khw loj tshaj plaws rau cov khoom siv hluavtaws, ua raws li cov khoom siv tsim kho. Cov khoom siv hluav taws xob, hluav taws xob thiab tsheb kuj tseem ceeb heev rau cov khoom siv hluavtaws. Lwm lub khw muaj xws li rooj tog, khoom ua si, khoom lom zem, khoom siv hauv tsev thiab khoom siv kho mob.
