Cov txheej txheem sib txuas: Thaum cov thermoplastic polymers tau rhuab lawv hloov pauv. … Thermoset polymers tsis soften thaum rhuab vim hais tias cov molecules yog cross-linked ua ke thiab nyob twj ywm nruj. Cov tshuaj sib txuas ua ke tsim nyob rau hauv ib lub polymer, thiab cov duab ntawm cov khoom polymer, cuam tshuam rau nws cov khoom.
Yuav ua li cas rau thermosetting yas thaum rhuab?
Thermosoftening plastics yaj thaum lawv rhuab. … Qhov no txhais tau hais tias lawv tuaj yeem rov ua dua, uas cuam tshuam rau lawv ua ntej ua cov khoom tshiab. Thermosoftening plastics tsis muaj covalent bonds ntawm cov nyob sib ze polymer molecules, yog li cov molecules yuav txav mus los ntawm ib leeg thaum rhuab thiab cov yas melts.
Vim li cas cov thermosetting yas tsis yaj ntawm cua sov?
Thermoplastics tuaj yeem muag los ntawm tshav kub tab sis cov thermosetting yas tsis tuaj yeem muag los ntawm tshav kub. Qhov no yog vim qhov sib txawv ntawm lawv cov qauv. … Vim li no, ntawm cov cua kub, cov hlua khi ntawm ib leeg tuaj yeem swb rau ib leeg thiab cov khoom siv thermoplastic yuav mos thiab thaum kawg melts.
Puas yog thermosetting polymers tuaj yeem ua kom sov thiab rov ua dua?
Cov yas kho cua sov hu ua thermosets tsis tuaj yeem raug ntaus rau lawv lub neej ntev. Tab sis cov polymers resilient, siv los ua coatings, tsheb qhov chaw, thiab tais diav, muaj ib tug flaw: lawv tsis tuaj yeem hloov kho lossis rov ua dua.
Cov khoom siv thermosetting puas tuaj yeem ua kom sov?
Thermoset plastics, lossis thermoset composites,yog cov khoom siv hluavtaws uas ntxiv dag zog rau thaum cua sov, tab sis tsis tuaj yeem ua tiav los yog rov ua dua tom qab pib cua sov-forming lossis molding.
