Thermoplastic vs Thermoset

Thermoplastic vs Thermoset

Thermoplastic e bolela thepa eo ntho e ka phallang le ho senyeha ha e futhumala, 'me e ka boloka sebopeho se itseng ka mor'a ho pholile. Boholo ba li-polymers tse melang li bonts'a thermoplasticity 'me li sebetsoa habonolo ka extrusion, ente kapa ho bōptjoa ha moea. Thermosetting e bolela thepa eo e ke keng ea nolofatsoa le ho bōptjoa repeha e futhumalitsoe, 'me e ke ke ea qhibiliha ka lihlapolli. Li-polymer tse ngata li na le thepa ena.

Thermosetting ke phetoho ea lik'hemik'hale. Ka mor'a ho futhumatsa, mohaho o fetohile 'me o fetoha ntho e' ngoe. Ka mohlala, u ke ke ua tsosolosa lehe ka mor'a hore le phehiloe. Thermoplasticity ke phetoho ea 'mele. Ke feela hore boemo ba thepa bo fetoha ha bo futhumala, empa sebopeho ha se fetohe. E ntse e le letsoalloa. Ka mohlala, ha kerese e qhibilihisoa ke mocheso, e ka khutlisetsoa kerese ea pele, empa ho tuka ha kerese ke phetoho ea lik'hemik'hale.

1. Thermoplastics

E ba bonolo 'me e le metsi ha e futhumala, 'me e thatafala ha e pholisitsoe. Ts'ebetso ena e ka fetoloa mme e ka ba repeated. Polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyoxymethylene, polycarbonate, polyamide, acrylic polasetiki, polyolefin tse ling le copolymers bona, polysulfide, polyphenylene ether, chlorinated polyether, joalo-joalo Ke thermoplastic. Liketane tsa limolek'hule tsa resin ho thermoplastics kaofela li na le mela kapa li na le makala. Ha ho na maqhama a lik'hemik'hale pakeng tsa liketane tsa limolek'hule, 'me lia nolofatsa le ho phalla ha li futhumala. Mokhoa oa ho pholile le ho thatafatsa ke phetoho ea 'mele.

2. Thermosetting polasetiki

Ha e futhumatsoa ka lekhetlo la pele, e ka kokobela le ho phalla. Ha e futhumatsoa mochesong o itseng, ho etsahala hore lik'hemik'hale li kopane 'me li tiee ho thatafala. Phetoho ena e ke ke ea etsolloa. Ka mor’a moo, ha e futhumatsoa hape, e ke ke ea hlola e e-ba bonolo ’me ea phalla. Ke ka lebaka la tšobotsi ena hore mokhoa oa ho bōpa o etsoa, ​​'me phallo ea polasetiki nakong ea ho futhumatsa ea pele e sebelisetsoa ho tlatsa sekoti tlas'a khatello, ebe e tiisa sehlahisoa sa sebopeho le boholo bo ikemiselitseng. Sesebelisoa sena se bitsoa thermoset.

Resin ea polasetiki ea thermosetting e mela kapa e na le makala pele e folisoa. Ka mor'a ho phekola, litlamo tsa lik'hemik'hale li thehoa pakeng tsa liketane tsa limolek'hule ho etsa sebopeho sa marang-rang a mararo. Hase feela hore e ke ke ea qhibiliha hape, empa e ke ke ea qhibiliha ka lihlapolli. Phenolic, aldehyde, melamine formaldehyde, epoxy, unsaturated polyester, silicone le lipolasetiki tse ling kaofela ke lipolasetiki tsa thermosetting.

Thermoplastic vs Thermoset