Lub sijhawm ntev siv ntsuas kub ntawm cov hom phiaj dav dav yog qis dua 100 degree. Lawv feem ntau suav nrog PE, PP, PS, PVC, thiab ABS. General-lub hom phiaj plastics yog qhov loj tshaj plaws ntawm plastics siv nyob rau hauv peb lub neej niaj hnub, thiab feem ntau yog siv rau kev ntim khoom, cov khoom ua si txhua hnub, thiab lwm yam khoom siv.
Lub sijhawm ntev siv ntsuas kub ntawm engineering plastics yog nyob ib ncig 100 degree rau 150 degree. Tsib qhov loj Engineering plastics suav nrog PA, pom, POM, PC, thiab PPO. Lawv feem ntau yog siv rau hauv cov tshuab tshuab, tsheb, cov hluav taws xob thiab cov hluav taws xob.
Qhov ntsuas kub ntawm cov kev kub-kub engineering plastics yog saum toj 150 degree. Ntxiv rau cov cua sov tiv taus thiab nplaim hluav taws xob rov ua dua tshiab, cov ntaub ntawv no feem ntau muaj cov kev ua haujlwm zoo nkauj, kev tiv thaiv hluav taws xob ruaj khov, thiab cov hluav taws xob ruaj khov. Lawv tuaj yeem siv los hloov cov ntaub ntawv hlau thiab tau siv dav hauv cov khoom siv hluav taws xob, ib qho khoom siv hluav taws xob, khoom siv kho mob, tsheb, thiab cov tub rog. Lawv yog cov ntaub ntawv nyob rau sab saum toj ntawm cov yas pyramid.
1. Cov nylon kub kub
Kev kub nylon nylon tau muab faib ua peb pawg:
1. Aliphatic Nylon - PA46
2. Semi-Aromatic Nylon - PPA
3. Muaj cov neeg muaj suab paj nruag nylon - para
2. Polyphenylene sulfide (PPS)
Polyphenylene sulfide (PPS) yog qhov loj tshaj plaws loj hlob thiab feem ntau cov tshuab sib xyaw ua ke tshwj xeeb hauv xyoo tsis ntev los no.
3. Polyarylutherone (Paek)
Polyarylutherone (Paek) yog cov ntaub pua npab uas nws txoj saw hlau tseem ceeb muaj kev sib txuas ntawm txoj kev sib txuas thiab kev sib tw ether thiab Ketone Bonds. Raws li tus lej thiab kev txiav txim ntawm cov pab pawg Etaws thiab pawg, PolyetneMeyetone (PeethetneKeekee (Peek), PolyetkumoneKeyketone (PeKkk), thiab lwm yam.
4. Polyimide (PI)
Polyimide (PI) yog ib qho muaj ntxhiab heterocyclic polymer sib xyaw nrog lub ntsej muag txuas hauv nws cov qauv molecular. Nws yog ib qho ntawm cov cua sov feem ntau tiv thaiv ntau yam ntawm engineering plastics tam sim no. Nws tuaj yeem tiv taus huab kub heev, nrog lub thermal decomposition kub txog li 600 degree, thiab yuav tsis nkig hauv cov kua helium helium thaum {2}} degree.
5. Cov Polysulfone (PSU)
PSU yog Amber Amber, Amorphous pob tshab lossis cov neeg siv hluav taws xob nrog cov khoom siv zoo heev, thiab muaj zog siab. Nws qhov zoo tshaj plaws zoo yog tias nws tswj cov khoom siv neeg kho zoo txawm tias thaum kub siab; Nws cov ntau yog -100 ~ siv sijhawm ntev yog 160 qib, thiab cov sijhawm luv luv yog 190 degree.
6. Polyarylate (par)
Polyarylate (par) yog ib qho thermoplastic pas uas muaj benzene rings thiab ester khi ntawm lub ntsiab tseem ceeb.
PAR has good light transmittance (close to 90%), toughness, heat resistance, elastic recovery, weather resistance and flame retardancy, and the continuous use temperature can reach up to 170 degree . Nws yog tsuas yog siv nyob rau hauv cov khoom siv ntsuas, tsheb, kev kho mob, kho mob, khoom noj thiab khoom siv txhua yam.
VII. Ua ua kua Crystal polymer (LCP)
LCP Suav lub npe yog ua kua crystal compound. Qhov thiaj li hu ua "ua kua crystal" yog cov tshuaj uas muaj kua ntawm cov kua hauv lub xeev molten thiab tswj hwm cov kev npaj ua kom tiav ntawm cov siv lead ua cov molecules.
VIII. Roj fluoroplastics
Fluoroplasties hais txog kev plastics ua los ntawm fluorine cob.
Cov ntau yam tseem ceeb yog polytetrafluoroethylene (augylene capolymer (etfene coplene (etfrenfene fluoride (pholdf), thiab lwm yam.