Expanded polypropylene (EPP rau luv luv) yog ultra-teeb, kaw-cell thermoplastic ua npuas ncauj raws li polypropylene ua npuas ncauj.Nws yog xim dub, liab lossis dawb, thiab txoj kab uas hla yog feem ntau ntawm φ2 thiab 7 hli.EPP hlaws yog tsim los ntawm ob theem, khoom thiab roj.Feem ntau, cov theem khoom tsuas yog 2% mus rau 10% ntawm tag nrho qhov hnyav, thiab tus so yog roj.Qhov tsawg kawg nkaus ceev yog 20-200 kg / m3.Tshwj xeeb, qhov hnyav ntawm EPP yog sib dua li ntawm polyurethane ua npuas ncauj nyob rau hauv tib lub zog-absorbing nyhuv.Yog li ntawd, cov khoom ua npuas ncauj ua los ntawm EPP hlaws yog lub teeb hauv qhov hnyav, muaj cua sov zoo, zoo cushioning zog thiab zoo heev txhua yam khoom, thiab yog 100% degradable thiab recyclable.Tag nrho cov txiaj ntsig no ua rau EPP yog ib qho ntawm cov khoom siv dav tshaj plaws hauv ntau qhov chaw, hauv txhua qhov ntawm peb lub neej:
Hauv kev lag luam tsheb, EPP yog qhov kev daws teeb meem zoo tshaj plaws kom ua tiav cov khoom sib sib zog nqus, xws li bumpers, automotive A-pillar trims, automotive side shock cores, automotive door shock cores, advanced Safety car seats, tool boxes, nra, Armrests, foamed polypropylene cov ntaub ntawv. tuaj yeem siv rau qhov chaw xws li cov phaj hauv qab, lub hnub visors, ntsuas vaj huam sib luag, thiab lwm yam. Kev txheeb xyuas: Tam sim no, qhov nruab nrab ntawm cov yas siv hauv tsheb yog 100-130kg / tsheb, ntawm cov ntawv thov nyiaj ntawm foamed polypropylene yog 4-6kg. / tsheb, uas tuaj yeem txo qhov hnyav ntawm lub tsheb txog li 10%.
Hauv kev ntim khoom, cov ntim rov qab siv tau thiab cov thawv thauj khoom ua los ntawm EPP muaj cov yam ntxwv ntawm kev txuag hluav taws xob, tiv thaiv tshav kub, tiv thaiv corrosion, rwb thaiv tsev, kev pab lub neej ntev, thiab lwm yam., tsis muaj cov khoom siv hluav taws xob tsis zoo, thiab tsis muaj cov khoom siv ib leeg. muaj teeb meem rau ozone txheej lossis hlau hnyav Cov khoom ntim, zom tau tom qab cua sov, 100% tus phooj ywg ib puag ncig.Txawm hais tias nws yog cov khoom siv hluav taws xob precision, lossis kev thauj mus los ntawm cov khoom noj xws li txiv hmab txiv ntoo, cov nqaij khov, khov nab kuab, thiab lwm yam, siv cov polypropylene nthuav dav.Raws li BASF qib siab ntsuas, EPP tuaj yeem ua tiav ntau dua 100 lub voj voog xa khoom, uas txuag cov ntaub ntawv thiab txo cov nqi ntim khoom.
Tsis tas li ntawd, EPP muaj kev poob siab zoo heev thiab kev ua haujlwm ntawm lub zog nqus, thiab tseem siv dav hauv kev tsim cov rooj zaum kev nyab xeeb rau menyuam yaus, hloov cov khoom siv tawv tawv thiab cov khoom siv polystyrene, thiab txawm tias tau dhau los ua cov khoom nyiam rau cov khoom siv hauv tsev niaj hnub.
Lub rooj zaum me nyuam tsim los ntawm Karwala hauv kev koom tes nrog KNOF Industries.Qhov no yog lub teeb pom kev nyab xeeb rau menyuam yaus hauv khw, thauj cov menyuam yaus hauv 0-13kg ntau thiab hnyav tsuas yog 2.5kg, uas yog 40% qis dua li cov khoom lag luam tam sim no.
Txawm tias muaj ntau yam kev siv, peb tsis tshua pom nws.Vim li cas qhov no?Vim hais tias yav dhau los, feem ntau ntawm EPP ua npuas ncauj qhov chaw siv pwm thiab ncaj qha particle molding tshuab tsis zoo nkauj thiab feem ntau muab zais tom qab cov ntaub ntawv xws li hlau, hlau, daim txhuam cev, ua npuas ncauj, textile thiab tawv.Tau ntau xyoo, kev sim tau ua los txhim kho qhov zoo ntawm cov qauv tsim ua npuas ncauj qhov chaw los ntawm kev ntxiv kev ntxhib los mos rau sab hauv ntawm cov khoom siv molding.Hmoov tsis zoo, qhov no feem ntau ua rau cov khoom seem ntau dua.Kev txhaj tshuaj molding yog ib ntus suav hais tias yog txheej txheem tsim nyog, tab sis nws cov khoom tsis zoo rau lub teeb yuag, lub zog nqus thiab rwb thaiv tsev.
Txhawm rau ua kom lub ntsej muag ntawm cov khoom ua npuas ncauj zoo dua, koj tuaj yeem xaiv siv laser ua tshuab tom qab tsim cov khoom, lossis ua cov txheej txheem lamination kom tau txais cov qauv sib txawv.Tab sis tom qab ua tiav kuj txhais tau tias siv hluav taws xob ntxiv, uas tseem cuam tshuam rau kev rov ua dua ntawm EPP.
Hauv cov ntsiab lus no, T.Michel GmbH, ua ke nrog ntau cov khoom siv sab saum toj thiab cov khoom lag luam hauv kev lag luam, tau pib "In-Mold Foamed Particle Txheej" (IMPFC) thev naus laus zis, uas yog txau tib lub sijhawm ua molding.Cov txheej txheem no siv kurtz Ersa's THERMO SELECT txheej txheem, uas ib tus zuj zus kho qhov kub ntawm cov pwm, ua rau muaj qhov zoo ntawm qhov chaw nrog qis qis heev.Qhov no txhais tau hais tias cov moldings tsim tau overmolded tam sim ntawd.Qhov no kuj ua rau tib lub sijhawm txau.Cov txheej txheej txau yuav xaiv cov polymer nrog cov qauv zoo ib yam li cov khoom ua npuas ncauj, piv txwv li, EPP sib raug rau cov tshuaj PP.Vim yog qhov sib xyaw ntawm ib txheej txheej, cov khoom ua npuas ncauj yog 100% rov ua dua.
Ib qho tshuaj tsuag phom qib kev lag luam los ntawm Nordson uas faib cov xim rau hauv cov xim zoo nkauj thiab cov tee dej kom zoo thiab siv tau zoo rau cov txheej hauv pwm.Qhov siab tshaj plaws thickness ntawm txheej tuaj yeem ncav cuag 1.4 hli.Kev siv cov txheej ua kom muaj kev xaiv dawb ntawm cov xim thiab kev ntxhib los mos ntawm cov molded qhov chaw, thiab muab qhov chaw loj loj rau kev nce lossis hloov ntawm qhov ua tau zoo ntawm qhov chaw.Piv txwv li, PP txheej tuaj yeem siv rau EPP ua npuas ncauj.Nqa zoo UV tsis kam.
Txheej thicknesses mus txog 1.4 mm.Piv nrog rau kev txhaj tshuaj molding, IMPFC thev naus laus zis tsim cov pwm pwm uas muaj ntau dua 60 feem pua sib zog.Los ntawm txoj kev no, moldings ua los ntawm cov khoom ua npuas ncauj nrog rau EPP yuav muaj kev vam meej.
Piv txwv li, EPP cov khoom ua npuas ncauj yuav tsis muab zais tom qab lwm cov ntaub ntawv lossis qhwv hauv lwm cov ntaub ntawv yav tom ntej, tab sis yuav qhia lawv tus kheej ntxim nyiam qhib.Thiab, nrog kev xav tau ntawm cov tsheb hluav taws xob loj zuj zus nyob rau xyoo tas los no thiab cov kev xav tau zoo ntawm cov neeg siv khoom hloov los ntawm cov tsheb tsoos mus rau lub tsheb fais fab (raws li International Energy Agency, kev muag tsheb hluav taws xob thoob ntiaj teb xav kom ncav cuag 125 lab units hauv 2030. Los ntawm 2030, Tuam Tshoj yuav tsum nyob ib ncig ntawm 70% ntawm cov tsheb muag khoom yuav yog EVs), uas yuav tsim muaj txiaj ntsig zoo rau kev lag luam EPP.Tsheb yuav dhau los ua daim ntawv thov kev lag luam loj tshaj plaws rau EPP.Ntxiv nrog rau kev paub txog kev hloov pauv thiab kev kho dua tshiab ntawm cov tsheb uas twb muaj lawm thiab lawv cov rooj sib txoos, EPP tseem yuav raug siv rau cov khoom tsim tshiab, suav nrog tab sis tsis txwv rau:
Nyob rau hauv lub neej yav tom ntej, EPP yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv cov khoom siv sib sib zog nqus, rwb thaiv tsev kub, lub zog nqus, thiab lwm yam los ntawm kev tsim txiaj ntawm nws cov khoom zoo uas tsis tuaj yeem ntsib los ntawm lwm yam khoom siv sib xyaw ua ke: tus nqi qis, cov khoom zoo heev, zoo formability, environmental friendliness, thiab lwm yam nyhuv.
Post lub sij hawm: Aug-05-2022