Tsis yog. Nylon yog ib qho nyuaj thiab muaj qhov kub thiab txias, thiab yog tsim rau kev ua cov plhaub, cov cuab yeej, lub zog, thiab lwm yam. Polyethylene yog mos thiab tsis kub tsis kam.Nws tuaj yeem raug tshuab rau hauv cov yeeb yaj kiab thiab ua rau hauv lub raj mis.
Polyethylene (PE) yog cov thermoplastic resin npaj los ntawm polymerization ntawm ethylene.Hauv kev lag luam, nws kuj suav nrog copolymer ntawm ethylene thiab ib qho me me ntawm α-olefins.Polyethylene tsis muaj ntxhiab tsw, tsis muaj tshuaj lom, zoo li siv quav ciab, thiab muaj qhov kub thiab txias tsis kam, zoo tshuaj ruaj khov thiab ua haujlwm rau feem ntau cov kua qaub thiab alkali corrosion.Insoluble nyob rau hauv cov kuab tshuaj nyob rau hauv lub chav tsev kub, nrog tsawg nqus dej thiab zoo heev hluav taws xob rwb thaiv tsev.Polyethylene muaj cov khoom siv dav dav, tsis tshua muaj zog tensile, tsis zoo creep tsis kam thiab muaj kev cuam tshuam zoo.Polyethylene tuaj yeem ua tiav los ntawm tshuab moulding, extrusion thiab txhaj tshuaj molding, thiab yog siv dav hauv kev tsim cov yeeb yaj kiab, cov khoom hollow, fibers thiab cov khoom siv niaj hnub.
Polyamide feem ntau hu ua Nylon, thiab nws lub npe lus Askiv yog Polyamide (PA luv), nrog qhov ceev ntawm 1.15g / cm3.Nws yog ib lub ntsiab lus dav dav rau cov thermoplastic resins nrog rov qab amide pawg -[NHCO]- nyob rau hauv cov pob txha molecular, suav nrog aliphatic PA, aliphatic-aromatic PA thiab aromatic PA.Ntawm lawv, aliphatic PA muaj ntau ntau yam, cov zis loj thiab daim ntawv thov dav, thiab nws lub npe nyob ntawm seb muaj pes tsawg tus carbon atoms hauv cov khoom siv hluavtaws.Nws tau tsim los ntawm nto moo American chemist carothers thiab nws pab neeg tshawb fawb.
Post lub sij hawm: Feb-21-2023