2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
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.
Pom zoo:
Yuav ua li cas thaum koj lub xov tooj cua sov?
Yuav ua li cas txias lub xov tooj overheated Tig lub xov tooj tawm. Tshem tawm ntawm tshav ntuj ncaj qha (piv txwv li hauv qab phuam puam, piv txwv li). Muab koj lub xov tooj tawm ntawm nws rooj plaub, yog tias koj siv ib qho. Tshem tawm lub charger cable yog tias nws ntsaws.
Cua sov cua sov twg?
A furnace ua haujlwm los ntawm kev tshuab cua sov los ntawm cov ducts uas xa cov cua sov rau cov chav thoob plaws hauv tsev los ntawm kev sau npe cua lossis cov hniav nyiaj hniav kub. Hom cua sov no yog hu ua ducted warm-air los yog yuam kom sov-air faib system.
Vim li cas thermosetting polymers tsis yaj thaum rhuab?
Thermoset polymers tsis soften thaum rhuab vim 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.
Cov neeg sov sov yuav ua li cas?
Teb: Tus kws sau paj huam xav kom cov neeg sov so hnav khaub ncaws huv, cov khaub ncaws huv si cim qhia lawv txoj kev phem los ua kom muaj kev thaj yeeb nyab xeeb nrog lawv cov kwv tij. Neruda xav kom cov neeg nuv ntses thiab cov neeg sov ua li cas?
Yuav ua li cas txheeb xyuas cov thermosetting yas?
Txhawm rau pib txiav txim siab seb cov khoom puas yog thermoset lossis thermoplastic, heat ib tus pas nrig (txog 500 ° F) thiab nias nws tawm tsam tus qauv. Yog hais tias tus qauv softens, cov khoom yog ib tug thermoplastic; Yog tsis yog, nws yog tej zaum thermosetting.
