Cov khoom siv sab nraum zoov tau raug tshav ntuj thiab nag tas li, thiab cov duab hluav taws xob los ntawm ultraviolet (UV) hluav taws xob tuaj yeem rhuav tshem cov tshuaj lom neeg hauv cov yas, ua rau yellowing, chalking, thiab txo cov khoom siv kho tshuab. Yog li ntawd, xaiv cov yas uas ua ke nrog UV tsis kam, lub zog ntawm lub zog, thiab kev ua haujlwm yog qhov tseem ceeb rau kev ua kom lub neej ntev -cov khoom siv. Tam sim no, ntau qhov tshwj xeeb engineering plastics tau dhau los ua qhov kev xaiv tseem ceeb rau cov khoom siv sab nraum zoov, txhua tus muaj nws tus kheej cov ntawv thov tsim nyog thiab cov txiaj ntsig tseem ceeb.
ASA yas (acrylonitrile-styrene-acrylate copolymer) yog "kev ntsuas huab cua" rau kev siv sab nraum zoov. Nws cov txiaj ntsig tseem ceeb tshwm sim los ntawm qhov tseeb tias acrylate roj hmab theem tsis muaj ob daim ntawv cog lus unsaturated, cia nws tiv thaiv UV yaig yam tsis muaj txheej txheej ntxiv. Nws tuaj yeem tiv taus 5-10 xyoo ntawm kev siv sab nraum zoov yam tsis muaj chalking lossis fading. Nws boasts ib tug hardness ntawm 85-100 Shore D thiab zoo heev toughness, nrog ib tug tensile lub zog ntawm Greater los yog sib npaug zos rau 35MPa, thiab muaj peev xwm tiv taus ntau yam kub ntawm -40℃mus rau 80 degree, ua rau nws haum rau feem ntau huab huab cua. Nws muaj kev ua tau zoo fluidity, txhawb kev txhaj tshuaj molding thiab extrusion txheej txheem, thiab tsis tshua kim tshaj li high-end alloy cov ntaub ntawv. Nws yog dav siv nyob rau hauv sab nraum zoov teeb pom kev zoo, them chaw nres tsheb casings, photovoltaic module thav ntawv, thiab automotive sab nrauv qhov chaw, zoo kawg nkaus hais txog cov shortcomings ntawm tsoos ABS nyob rau hauv cov nqe lus ntawm huab cua tsis kam.
Huab cua- tiv taus hloov kho ABS yog tus nqi- kev xaiv zoo. Los ntawm kev ntxiv UV absorbers thiab lub teeb stabilizers, nws cov kev tiv thaiv kev laus -kev ua haujlwm tau zoo dua qub. Cov qib Customized muaj nyob rau ntau qhov chaw sab nraum zoov, xws li siab -UV tiv taus hom nrog xim sib txawv ΔE Tsawg dua lossis sib npaug li 1.2 tom qab 5000 teev ntawm QUV kuaj, haum rau qhov siab - qhov siab thiab suab puam ib puag ncig; thiab ib hom ntsev tsuag tshuaj tiv thaiv uas tuaj yeem tiv taus qhov yaig ntawm hiav txwv breezes nyob rau hauv cov ntug hiav txwv dej, uas qhia tias tsis muaj corrosion tom qab 1500 teev ntawm kev ntsuam xyuas ntsev tsuag. Nws muaj lub zog tensile ntawm Ntau dua lossis sib npaug ntawm 42MPa, zoo heev qis- qhov kub thiab txias qhov kev ua tau zoo, thiab qis molding shrinkage, ua rau nws haum rau lub tshuab cua txias sab nraum zoov casings, cov khoom siv saib xyuas sab nraum zoov, thiab cov khoom siv kos npe, ntsuas kev ua haujlwm thiab tus nqi.
PC/ASA alloy muab qhov zoo ntawm ob qho tib si, ua rau nws nyiam xaiv rau siab -kawg cov khoom siv sab nraum zoov. ASA tivthaiv muab kev tiv thaiv UV zoo heev thiab tiv thaiv -daj muaj peev xwm, thaum lub sijhawm PC txhawb kev cuam tshuam lub zog thiab kev tiv thaiv tshav kub, nrog rau qhov kub tsis sib haum ntawm 95-125 degree, thiab qis dua -kub toughness dua li ntshiab ASA. Kev ua tau zoo yog superior rau PC ntshiab, nrog zoo heev yaj flowability, zoo seem stability ntawm cov khoom tiav, thiab muaj peev xwm ua tau siab -gloss los yog matte nto los. Nws yog qhov tsim nyog rau kev thov kev thov xws li kev sib txuas lus hauv chaw nres tsheb cov khoom siv vaj tsev, lub thawv hnub ci hleb, thiab cov teeb pom kev zoo sab nraum zoov, nrog rau kev pab cuam lub neej ntau dua 10 xyoo.
High- ntom polyethylene (HDPE) thiab polyvinylidene fluoride (PVDF) yog tsim rau cov ntawv thov tshwj xeeb. HDPE yog lub teeb yuag, yoog raws, thiab muaj tshuaj lom neeg tiv taus, yuav luag tsis muaj dej nqus, ua rau nws tsim nyog rau cov kav dej sab nraum zoov, cov khoom siv hauv chaw ua si, thiab ntoo -zoo li panels. Txawm li cas los xij, nws lub zog muaj zog yog txwv, ua rau nws tsis haum rau kev thauj khoom -cov kabmob enclosures. PVDF muaj qhov tshwj xeeb ntawm huab cua tsis kam thiab tshuaj lom neeg ruaj khov, yog nplaim hluav taws- tiv taus thiab qaug zog- tiv taus, thiab haum rau siab- khoom kawg hauv siab - qhov siab, muaj zog UV ib puag ncig thiab corrosive ntug dej hiav txwv ib puag ncig. Txawm li cas los xij, nws kim dua thiab nyuaj rau kev ua haujlwm, thiab feem ntau yog siv hauv aerospace thiab precision zog khoom.
Kev xaiv cov khoom siv yuav tsum xav txog tej yam kev mob, kev ua tau zoo, thiab tus nqi. Rau qhov chaw siab UV, PC / ASA alloy lossis ASA yog nyiam; rau qhov nruab nrab mus rau qhov siv tsawg, hloov ABS tuaj yeem siv tau; thiab rau qhov tshwj xeeb corrosive ib puag ncig, PVDF yuav tsum tau txiav txim siab. Qhov kev xaiv tsim nyog ntawm UV- cov yas tiv thaiv tuaj yeem txuas ntxiv lub neej kev pab cuam ntawm cov khoom siv sab nraum zoov, txo cov nqi tu, thiab muab kev tiv thaiv zoo rau cov chaw sab nraum zoov.
