Lub thermoplastic, los yog cov yas thermosoftening, yog cov khoom siv yas, cov khoom siv polymer, uas ua rau pliable los yog moldable saum toj ib qho kub thiab ua kom khov thaum txias.
Feem ntau cov thermoplastics muaj qhov hnyav molecular.Cov saw hlau polymer koom nrog los ntawm kev sib cuam tshuam cov rog, uas tsis muaj zog sai nrog qhov kub thiab txias, ua rau cov kua dej khov.Yog li, cov thermoplastics tuaj yeem hloov kho los ntawm cua sov thiab feem ntau yog siv los tsim cov khoom los ntawm ntau yam txheej txheem polymer xws li kev txhaj tshuaj molding, compression molding, calendering, thiab extrusion.Cov thermoplastics txawv ntawm cov thermosetting polymers, uas tsim cov tshuaj tiv thaiv tsis tuaj yeem thaum lub sijhawm kho.Thermosets tsis yaj thaum rhuab: lawv decompose thiab tsis hloov thaum txias.
Acrylic:Acrylic, polymer hu ua poly (PMMA), kuj paub los ntawm cov npe lag luam xws li Lucite, Perspex thiab Plexiglas.Nws ua haujlwm ruaj khov hloov iav rau cov khoom xws li thoob dej yug ntses, maus taus kaus mom hlau visors, dav hlau qhov rais, saib cov chaw nres nkoj ntawm submersibles, thiab lo ntsiab muag ntawm sab nrauv teeb ntawm lub tsheb.Nws yog dav siv los ua cov paib, nrog rau cov ntawv sau thiab logos.Hauv tshuaj, nws yog siv rau hauv cov pob txha cement thiab hloov lub qhov muag lo ntsiab muag.Acrylic xim muaj PMMA cov khoom raug tshem tawm hauv dej.
ABS:Acrylonitrile butadiene styrene (ABS) yog terpolymer synthesized los ntawm styrene thiab acrylonitrile nyob rau hauv lub xub ntiag ntawm polybutadiene.ABS yog cov khoom siv lub teeb-yuag uas pom muaj kev cuam tshuam siab thiab kev ua haujlwm nyuaj.Nws ua rau muaj kev pheej hmoo tsawg rau tib neeg kev noj qab haus huv raws li kev ua haujlwm ib txwm muaj.Nws yog siv hauv ntau yam khoom siv, xws li cov khoom ua si, khoom siv, thiab xov tooj.
Nylon:Nylon belongs rau ib chav kawm ntawm polymers hu ua polyamides.Nws tau ua kev hloov pauv feem ntau rau hemp, paj rwb thiab txhob lo lo ntxhuav, hauv cov khoom xws li parachutes, cords, sails, flak vests thiab poj niam khaub ncaws.Nylon fibers muaj txiaj ntsig zoo hauv kev ua cov ntaub, hlua, ntaub pua plag thiab cov hlua suab paj nruag, thaum nyob rau hauv ntau daim ntawv, Nylon yog siv rau cov khoom siv kho tshuab xws li tshuab screws, zog thiab cov cuab yeej hluav taws xob.Tsis tas li ntawd, nws yog siv nyob rau hauv kev tsim cov khoom siv hluav taws xob-resistant composite.
PLA:Polylactic acid (polylactide) yog biodegradable thermoplastic aliphatic polyester muab tau los ntawm cov khoom siv txuas ntxiv, xws li pob kws hmoov txhuv nplej siab (hauv Tebchaws Meskas), tapioca cag, chips lossis hmoov txhuv nplej siab (feem ntau hauv Asia), lossis qab zib.Nws yog ib qho ntawm cov ntaub ntawv siv rau 3D luam ntawv nrog fused deposition modeling (FDM) cov txheej txheem.
Polybenzimidazole:Polybenzimidazole fiber ntau yog cov khoom siv hluavtaws uas muaj cov ntsiab lus melting siab heev.Nws muaj qhov tshwj xeeb thermal thiab tshuaj lom neeg ruaj khov thiab tsis yooj yim ignite.Nws yog thawj zaug pom los ntawm American polymer chemist Carl Shipp Marvel nyob rau hauv kev nrhiav cov ntaub ntawv tshiab nrog superior stability, tuav nruj, toughness ntawm siab kub.Vim nws txoj kev ruaj ntseg siab, Polybenzimidazole yog siv los tsim cov khaub ncaws tiv thaiv kev ua haujlwm zoo xws li cov neeg tua hluav taws cov iav, cov chaw ua haujlwm hauv chaw ua haujlwm, cov hnab looj tes tiv thaiv kub, cov khoom siv vuam tsoo thiab cov ntaub thaiv dav hlau.Nyob rau hauv xyoo tas los no, polybenzimidazole pom nws daim ntawv thov ua daim nyias nyias hauv cov roj hlwb.
Polycarbonate:Polycarbonate (PC) thermoplastics paub raws li cov cim lag luam xws li Lexan, Makrolon, Makroclear, thiab arcoPlus.Lawv tau yooj yim ua haujlwm, molded, thiab thermoformed rau ntau daim ntawv thov, xws li cov khoom siv hluav taws xob, cov ntaub ntawv tsim kho, cov ntaub ntawv khaws cia, cov khoom siv hauv tsheb thiab dav hlau, xyuas cov sockets hauv cov khoom siv, thiab kev ruaj ntseg glazing.Polycarbonates tsis muaj qhov tshwj xeeb cob qhia code.Cov khoom ua los ntawm polycarbonate tuaj yeem muaj cov precursor monomer bisphenol A (BPA).
Polyether sulfone:Polyether sulfone (PES) yog ib chav kawm tshwj xeeb uas tsim cov thermoplastics uas muaj cov thermal, oxidative, thiab hydrolytic stability, thiab zoo tiv thaiv aqueous mineral acids, alkalis, ntsev tov, roj thiab roj.
Polyoxymethylene:Polyoxymethylene (POM), tseem hu ua acetal, polyacetal thiab polyformaldehyde, yog ib qho khoom siv thermoplastic siv nyob rau hauv precision qhov chaw uas yuav tsum tau muaj siab nruj, tsis muaj kev sib txhuam, thiab zoo heev seem stability.Raws li nrog ntau lwm cov khoom siv hluavtaws, nws yog tsim los ntawm cov tuam txhab tshuaj sib txawv nrog cov qauv sib txawv me ntsis thiab muag ntau yam los ntawm cov npe xws li Delrin, Celcon, Ramtal, Duracon, Kepital thiab Hostaform.
Polyetherether ketone:Polyether ether ketone (PEEK) yog cov xim tsis muaj xim organic thermoplastic polymer hauv tsev neeg polyaryletherketone (PAEK), siv hauv kev siv engineering.Nws yog thawj zaug qhia los ntawm Victrex PLC, tom qab ntawd ICI (Imperial Chemical Industries) thaum xyoo 1980s.Nws muaj cov khoom zoo nkauj zoo nkauj zoo nkauj, tsis tshua muaj nplaim taws thiab emission ntawm cov pa taws thiab cov pa phem.
Polyetherimide:Polyetherimide (PEI), ua los ntawm cov tshuaj tiv thaiv tshiab nitro hloov pauv uas muaj bisphenol A, 4, 4'-methylenedianiline thiab 3-nitrophthalic anhydride, muaj qhov kub thiab txias distortion kub, tensile zog thiab modulus.Lawv feem ntau yog siv rau hauv cov khoom siv hluav taws xob thiab hluav taws xob ua haujlwm siab, cov khoom siv microwave, thiab cov khoom siv hauv tsheb hauv qab.
Polyethylene:Polyethylene (polyethene, polythene, PE) yog ib tsev neeg ntawm cov ntaub ntawv zoo sib xws categorized raws li lawv qhov ntom thiab molecular qauv.Nws tseem hu ua poly thiab tau los ntawm kev ntxiv polymerization ntawm ethylene. txheej txheem siv nyob rau hauv nws manufacturing.Nws yog resistant rau ya raws thiab feem ntau ntawm cov tshuaj.Nws yog hloov tau ntawm chav tsev kub.(thiab kub tsis tshua muaj) thiab tuaj yeem ua cua sov kaw.
Polyphenylene oxide:Polyphenylene oxide (PPO), uas tau txais los ntawm cov dawb-radical, kev loj hlob oxidative coupling polymerization ntawm 2,6-xylenol, muaj ntau yam zoo nkauj xws li kub kub distortion thiab cuam tshuam lub zog, tshuaj stability rau cov ntxhia thiab organic acids, thiab kev nqus dej tsawg.PPO yog qhov nyuaj rau kev ua haujlwm, thiab yog li cov khoom lag luam (Noryl) yog tsim los ntawm kev sib xyaw PPO nrog kev cuam tshuam siab polystyrene (HIPS), uas ua haujlwm kom txo qis kev ua haujlwm kub.
Polyphenylene sulfide:Polyphenylene sulfide (PPS) tau los ntawm condensation polymerization ntawm p-dichlorobenzene thiab sodium sulfide, muaj cov tshuaj tiv thaiv zoo heev, cov khoom siv hluav taws xob zoo, cov nplaim hluav taws zoo heev, tsis tshua muaj coefficient ntawm kev sib txhuam thiab siab transparency rau microwave hluav taws xob.PPS feem ntau yog siv rau hauv daim ntawv thov txheej.Qhov no yog ua los ntawm kev txau cov dej slurry ntawm PPS hais thiab cua sov kom kub siab tshaj 370 ° C.Cov qib tshwj xeeb ntawm PPS tuaj yeem siv rau hauv kev txhaj tshuaj molding thiab compression molding ntawm qhov kub thiab txias (300 txog 370 ° C) uas PPS hais soften thiab undergo pom meej crosslinking.Cov ntawv thov tseem ceeb ntawm kev txhaj tshuaj thiab compression molded PPS suav nrog cookware, bearings, thiab twj tso kua mis rau kev pabcuam hauv ntau qhov chaw corrosive.
Polypropylene:Polypropylene (PP) muaj txiaj ntsig zoo rau cov khoom siv sib txawv xws li cov thawv ntim khoom noj uas siv tau, microwave- thiab tshuab ntxhua khaub ncaws-zoo yas ntim, cov ntaub qhwv ntaub, cov ntaub so ntswg huv thiab cov casing, ropes, ntaub pua plag, yas moldings, piping systems, tsheb roj teeb, rwb thaiv tsev rau hluav taws xob. cables thiab lim rau roj thiab kua.Hauv cov tshuaj, nws yog siv rau hauv kev kho mob hernia thiab ua cov khoom siv kho mob kub-resistant.Cov nplooj ntawv polypropylene yog siv rau cov ntawv sau cia thiab ntim khoom thiab cov thawv ntim kom huv.Polypropylene yog txhais los ntawm cov yas rov ua dua tshiab 5. Txawm hais tias tsis tshua muaj zog, nws yog qhov yooj yim rau hluav taws xob ultraviolet thiab tuaj yeem degrade considerably nyob rau hauv tshav ntuj ncaj qha.Polypropylene tsis yog qhov cuam tshuam-resistant li polyethylene (HDPE, LDPE).Nws kuj yog ib qho me ntsis permeable rau cov pa roj thiab cov kua dej tsis zoo.
Polystyrene:Polystyrene yog tsim nyob rau hauv ntau yam ntaub ntawv uas muaj ntau yam kev siv.Extruded polystyrene (PS) yog siv rau hauv kev tsim cov khoom siv pov tseg, CD thiab DVD, cov qauv yas ntawm lub tsheb thiab cov nkoj, thiab cov khoom siv hluav taws xob.Expanded polystyrene ua npuas ncauj (EPS) yog siv los ua rwb thaiv tsev thiab ntim cov ntaub ntawv, xws li "txiv laum huab xeeb" thiab molded ua npuas ncauj siv los cushion khoom tawg yooj yim.Extruded polystyrene ua npuas ncauj (XPS), paub los ntawm lub npe lag luam Styrofoam, yog siv los ua architectural qauv thiab khob haus dej haus.Polystyrene copolymer yog siv rau hauv kev tsim cov khoom ua si thiab cov khoom casings.
Polyvinyl chloride:Polyvinyl chloride (PVC) yog cov khoom siv tawv, lub teeb yuag uas tiv taus cov kua qaub thiab cov hauv paus.Feem ntau nws yog siv los ntawm kev tsim kho kev lag luam, xws li rau vinyl siding, drainpipes, gutters thiab vov tsev ntawv.Nws kuj tau hloov mus rau cov ntaub ntawv hloov tau yooj yim nrog kev sib ntxiv ntawm cov yas yas, yog li ua rau nws muaj txiaj ntsig zoo rau cov khoom xws li hoses, tubing, hluav taws xob rwb thaiv tsev, tsho loj, tsho thiab upholstery.Saj zawg zog PVC kuj tseem siv rau hauv cov khoom ua kom muaj pa, xws li cov txaj dej thiab cov khoom ua si hauv pas dej.PVC kuj yog ib yam khoom siv nyob rau hauv cov duab yas, tshwj xeeb tshaj yog nyob rau hauv lub teb chaws xws li Nyiv, qhov twg cov khoom siv feem ntau nyob rau hauv thiaj li hu ua Sofubi cov duab.Raws li PVC khoov tau yooj yim thiab muaj lub ntsej muag yuav tsum tau khoov thaum lub sijhawm thauj mus los, ib txoj hauv kev los 'kho' qhov deformation yog kom sov cov yas kom txog thaum nws dhau los ua lub xov tooj, ces 'rov khoov' cov khoom rau hauv txoj haujlwm raug.
polymer:polymer lub npe ntawm DuPont rau ntau yam polymer polytetrafluoroethylene (PTFE), uas belongs rau chav kawm ntawm thermoplastics.
Post lub sij hawm: May-01-2018