Video: Puas thermosets hlawv?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Thermosets sib txawv vim lawv cov molecules ua interconnected nyob rau hauv ib tug tshuaj tiv thaiv hu ua crosslinking. Crosslinking yog ib txoj kev irreversible uas yuav tsum tau cua sov. Vim li no, thermosets yog "kho" hauv pwm kub. thermosetting yas yuav hlawv thaum rhuab tom qab pib molding.
Tsis tas li ntawd, ua li cas rau cov thermosets thaum rhuab?
Thermosetting plastics tsis yaj thaum cua sov . Lawv nyiam char thiab hlawv thaum cua sov , tab sis lawv tiv taus kub ntau dua li cov thermosoftening plastics.
Ib sab saum toj no, puas thermoplastics hlawv? Lawv tau tau rhuab mus rau lawv cov ntsiab lus melting, txias, thiab rov ua kom sov dua yam tsis muaj degradation tseem ceeb. Hloov ntawm hlawv , thermoplastics zoo li ABS liquefy uas tso cai rau lawv tau yooj yim txhaj tshuaj molded thiab tom qab ntawd rov siv dua.
Xav txog qhov no, puas thermosets yaj?
Feem ntau, thermosets muab kev kub siab ua haujlwm sib npaug lossis zoo dua li lwm cov yas, ntawm ib feem ntawm tus nqi. Vim crosslinking yog irreversible, thermosets ua tsis pib yaj thaum kub nce. Vim li no, lub zog thiab cov duab tau khaws cia ntawm qhov kub thiab txias uas ua rau lwm cov yas tsis muaj zog.
Cov thermosets siv rau dab tsi?
Thermoset Cheebtsam yog siv feem ntau nyob rau hauv ntau yam kev lag luam - thiab yog siv rau Kev siv hauv tsheb, khoom siv, hluav taws xob, teeb pom kev zoo, thiab kev lag luam hluav taws xob vim muaj tshuaj lom neeg zoo thiab thermal stability nrog rau superior zog, hardness, thiab moldability.
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