Nta thiab hom thermoplastic polymer

Lub thermoplastic polymer yog ib hom polymer uas yog tus cwj pwm los ntawm nws lub peev xwm los yaj thiab tom qab ntawd solidified repeatedly tsis muaj kev hloov pauv tseem ceeb hauv nws cov khoom siv tshuaj lom neeg lossis cov yam ntxwv ua haujlwm. Thermoplastic polymers yog dav siv nyob rau hauv ntau yam kev siv, nrog rau kev ntim khoom, cov khoom siv tsheb, cov khoom siv hluav taws xob, thiab cov khoom siv kho mob, thiab lwm yam.

Thermoplastic polymers txawv ntawm lwm hom polymers, xws li thermosetting polymers thiab elastomers, los ntawm lawv lub peev xwm los yaj thiab hloov ntau zaus. Qhov no yog vim lub fact tias thermoplastic polymers yog tsim los ntawm ntev chains ntawm molecules uas tau tuav ua ke los ntawm cov tsis muaj zog intermolecular rog. Thaum tshav kub kub yog siv rau cov thermoplastic polymer, cov kev sib cuam tshuam ntawm lub zog tsis muaj zog, tso cai rau cov saw hlau txav tau yooj yim dua thiab cov khoom siv tau yooj yim dua.

Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm cov thermoplastic polymers yog lawv cov versatility. Lawv tuaj yeem tsim kom muaj ntau yam ntawm lub cev thiab cov khoom siv kho tshuab, suav nrog kev yoog raws, toughness, lub zog, thiab tsis kam mus rau tshav kub, tshuaj, thiab UV hluav taws xob. Qhov no ua rau lawv haum rau ntau yam kev siv uas xav tau kev ua haujlwm tshwj xeeb.

Lwm qhov zoo ntawm cov thermoplastic polymers yog lawv qhov yooj yim ntawm kev ua. Vim tias lawv tuaj yeem yaj thiab hloov kho ntau zaus, lawv tuaj yeem ua tau yooj yim molded rau hauv cov duab uas siv ntau hom kev, xws li kev txhaj tshuaj molding, extrusion, tshuab molding, thiab thermoforming. Qhov no ua rau lawv xaiv tus nqi zoo rau kev tsim khoom loj ntawm cov khoom thiab cov khoom.

Muaj ntau ntau hom thermoplastic polymers, txhua tus muaj nws tus kheej cov khoom tshwj xeeb thiab kev siv. Qee yam uas feem ntau muaj xws li:

1. polyethylene (PE): Siv dav siv thermoplastic polymer uas paub txog nws tus nqi qis, yoog raws, thiab tsis kam tiv thaiv kev cuam tshuam thiab tshuaj lom neeg. Nws yog siv rau hauv ntau yam kev siv, nrog rau kev ntim khoom, cov kav dej, thiab cov rwb thaiv tsev hlau.
2. Polypropylene (PP): Lwm qhov siv dav siv thermoplastic polymer uas paub txog nws qhov tawv tawv, tawv, thiab ua haujlwm kub thiab tshuaj lom neeg. Nws yog siv rau ntau yam kev siv, suav nrog cov khoom siv tsheb, ntim khoom, thiab cov khoom siv kho mob.
3. Polyvinyl chloride (PVC): Ib qho thermoplastic polymer uas paub txog nws cov khoom siv ntau yam, ua haujlwm ntev, thiab ua haujlwm rau hluav taws thiab tshuaj. Nws yog siv nyob rau hauv ntau yam kev siv, nrog rau cov kav dej, hlau rwb thaiv tsev, thiab flooring.
4. Polystyrene (PS): Lub thermoplastic polymer uas paub txog nws qhov tseeb, nruj, thiab tus nqi qis. Nws yog siv rau hauv ntau yam kev siv, nrog rau kev ntim khoom, cov khob pov tseg, thiab rwb thaiv tsev.
5. Acrylonitrile-butadiene-styrene (ABS): Lub thermoplastic polymer uas paub txog nws lub zog, tawv, thiab tsis kam mus rau tshav kub thiab cuam tshuam. Nws yog siv rau hauv ntau yam kev siv, nrog rau cov khoom siv tsheb, cov khoom ua si, thiab cov khoom siv hluav taws xob.

Ntxiv nrog rau cov thermoplastic polymers no, muaj ntau ntau hom muaj, txhua tus muaj nws tus kheej cov khoom thiab kev siv. Qee qhov piv txwv muaj xws li polycarbonate (PC), polyamide (PA), polyethylene terephthalate (PET), thiab fluoropolymers xws li polytetrafluoroethylene (PTFE).

Zuag qhia tag nrho, thermoplastic polymers yog ib qho kev xaiv ntau yam thiab muaj txiaj ntsig zoo rau ntau yam kev siv. Lawv lub peev xwm los yaj thiab hloov kho ntau zaus, ua ke nrog lawv ntau yam ntawm lub cev thiab txhua yam khoom, ua rau lawv muaj txiaj ntsig zoo hauv ntau qhov kev lag luam.