Thermoplastics hais txog cov yas uas muag muag thaum cua sov thiab tawv thaum txias. Feem ntau ntawm cov yas uas peb siv hauv peb lub neej txhua hnub yog nyob rau hauv pawg no. Thaum rhuab, lawv soften thiab ntws, thiab thaum txias, lawv harden. Cov txheej txheem no yog thim rov qab thiab tuaj yeem rov ua dua.
Thermoplastics tsis sib npaug rau cov thermosetting plastics.
Thermoplastics thiab thermosetting plastics yog ob lub ntsiab sib txawv ntawm cov yas.
Cov yam ntxwv ntawm thermoplastics yog:
Thaum rhuab, lawv soften thiab deform, thiab thaum txias, lawv harden rov qab mus rau lawv cov qub duab. Cov txheej txheem no tuaj yeem rov ua dua ntau zaus.
Cov qauv molecular yog linear los yog branched, thiab tsuas muaj ib tug tsis muaj zog van der Waals quab yuam ntawm molecules, thiab tsis muaj tshuaj sib txuas.
Cov neeg sawv cev thermoplastics muaj xws li polyethylene, polypropylene, polystyrene, polyvinyl chloride, thiab lwm yam.
Cov yam ntxwv ntawm thermosetting plastics yog:
Thaum rhuab, ib qho tshuaj tiv thaiv tsis tuaj yeem tshwm sim, ua rau nws cov molecules los tsim peb-dimensional cross-linked network qauv, uas yuav tsis soften thiab deform.
Muaj covalent bonds ntawm molecules los tsim ib tug ruaj khov peb-dimensional network qauv.
Cov neeg sawv cev thermosetting yas muaj xws li phenolic resin, epoxy resin, polyester resin, thiab lwm yam.
Feem ntau, cov thermoplastics yogyas thiab recyclable, thaum thermosetting plastics muaj lub zog siab thiab kub tsis kam, thiab ob qho tib si muaj cov ntawv thov tseem ceeb hauv kev lag luam yas.
Yog li peb yuav ua li cas nrog cov khib nyiab kub uas tsim los ntawm cov thermoplastics hauv cov txheej txheem tsim khoom? Piv txwv li, cov khib nyiab kub los ntawm kev txhaj tshuaj molding kev lag luam ntawm lub hwj chim qaum plugs thiab extrusion kev lag luam ntawm cov xov hlau thiab cables. Lub hwj chim qaum txhaj tshuaj molding manchines thiab Cable extruders yuav tsim cov khib nyiab kub txhua hnub. Cia nws musZAOGE nws tus kheej siv cov tshuaj.ZAOGE online sib tsoo tam sim thiab siv cov khib nyiab kub, cov khoom siv crushed yog cov khoom sib xws, huv si, tsis muaj plua plav, tsis muaj kuab lom, zoo siab, sib xyaw nrog cov khoom siv raw los tsim cov khoom zoo.
Post lub sij hawm: Jun-03-2024
