Kev txhim kho ntawmunsaturated polyester resinCov khoom muaj keeb kwm ntau dua 70 xyoo. Nyob rau hauv xws li lub sij hawm luv luv ntawm lub sijhawm, unsaturated polyester resin cov khoom tau tsim kho sai rau cov zis tawm thiab theem kev kawm. Txij li thaum yav tas los tsis tau cov khoom lag luam polyester tau tsim mus rau hauv ib qho ntawm cov ntau tshaj plaws hauv cov thermosetting resin kev lag luam. Thaum lub sijhawm tsim kho cov resaturated polyester, cov ntaub ntawv xov xwm qhia txog cov khoom lag luam, cov ntawv nyeem, thiab lwm yam. Txog tam sim no, muaj ntau pua tus tswv cuab patents txhua xyoo, uas cuam tshuam nrog cov khoom lag luam polyester tsis tau. Nws tuaj yeem pom tau tias kev tsim khoom thiab cov txheej txheem ntawm cov khoom lag luam polyester tau ua ntau dua thiab tau yooj yim dua thiab ua tiav kev lag luam. Hauv cov txheej txheem txhim kho yav dhau los, cov txiaj ntsig tsis tau muaj txiaj ntsig Polyester tau ua tiav tshwj xeeb rau kev siv dav dav. Yav tom ntej, nws yuav tsim kho rau qee lub hom phiaj tshwj xeeb-hom phiaj, thiab tib lub sijhawm, tus nqi ntawm cov resins dav dav yuav raug txo. Cov hauv qab no yog qee qhov nthuav thiab cog lus tseg cov khoom lag luam polyester, Nrog cov khoom tshwj xeeb, thiab kev ua tau zoo tsob ntoo cov ntiv tes ntiv tes ua ke nrog cov khoom siv raw tshiab thiab cov txheej txheem.
1.xawv shrinkage resin
Qhov no cob qhia ntau yam tsuas yog muaj lub npe qub. Unsaturated polyester cob tau muab cob tau los ntawm qhov loj me thaum lub sij hawm kho, thiab cov dav dav shrinkage tus nqi yog 6-10%. Qhov shrinkage no tau loj heev deform lossis txawm tawg cov khoom, tsis nyob hauv cov txheej txheem compression (SMC, BMC). Yuav kom kov yeej txoj kev tsis txaus siab no, thermoplastic resins feem ntau yog siv los yog shrinkage qis ntxiv additives. Daim ntawv tso tawm hauv thaj chaw no tau muab rau dupont nyob rau hauv 1934, patent naj npawb peb 1.945,307. Daim Patent piav qhia txog Copolymerization ntawm dibasic istlicelic acids nrog vinyl tebchaw. Kom meej meej, nyob rau lub sijhawm, patenteer tsawg shrinkage technology rau polyester resins. Txij thaum ntawd los, muaj coob tus neeg tau mob siab rau lawv tus kheej mus rau txoj kev tshawb fawb ntawm copolymer Systems, uas tau pom tias yog cov yas alloys. Nyob rau hauv xyoo 1966 Marco Strinkage Resins tau siv thawj zaug hauv kev sib xyaw thiab kev tsim khoom.
Kev Koom Tes Nrog Kev Lag Luam Plastics tom qab hu ua cov khoom lag luam "SMC", uas txhais tau tias sau ntawv me me "BMC" txhais tau tias ntau ntau moulding compound. Rau SMC cov ntawv, feem ntau nws yuav tsum tau hais tias lub cob-molded seem muaj kev sib tw zoo, uas yuav tsum tau zam, uas yuav tsum tau muab cov ntawv cob qhia kom muaj qhov qis shrinkage tus nqi. Tau kawg, ntau tus patents muaj txij li kev txhim kho thiab txhim kho cov nyhuv no, thiab ntau cov txiaj ntsig ntawm cov txiaj ntsig qis lossis cov khoom siv qis qis tau tshwm sim raws li lub sijhawm xav tau. Feem ntau siv qis qis shrinkage additives yog polystyrene, polymethyl methamrylate thiab zoo li.
2.FLame Retardant Resin
Qee zaum cov nplaim hluav taws xob me me retardant cov ntaub ntawv tseem ceeb npaum li kev cawm siav, thiab nplaim taws cov ntaub ntawv retardant tuaj yeem zam lossis txo qhov tshwm sim ntawm kev puas tsuaj. Hauv Tebchaws Europe, tus naj npawb ntawm cov hluav taws tuag tau poob raws li 20% hauv kaum xyoo dhau los vim tias kev siv nplaim taws retardants. Kev nyab xeeb ntawm nplaim retardant cov ntaub ntawv nws tus kheej kuj tseem ceeb heev. Nws yog cov txheej txheem qeeb thiab nyuaj los ua qauv ua cov khoom siv uas siv hauv kev lag luam. Tam sim no, European zej zog muaj thiab tab tom ua kev ntsuas kev phom sij ntawm ntau lub halogen-based thiab halogen-phosphorus nplaim retardants. , Ntau yam uas yuav ua tiav ntawm xyoo 2004 thiab 2006. Tam sim no siv cov ntaub ntawv raw los yog domasic acid halogen ua rau npaj cov nplaim hluav taws xob retardant resins. Halogen nplaim retardants yuav tsim cov pa luam yeeb ntau thaum hlawv, thiab muaj nrog cov hydriterating hydrogen halrogen halide. Cov pa luam yeeb tuab thiab cov hnoos qeev tau tsim tawm thaum lub sijhawm cov txheej txheem sib txuas ua rau tib neeg.
Ntau tshaj 80% ntawm kev sib tsoo tua hluav taws yog tshwm sim los ntawm qhov no. Lwm qhov tsis zoo ntawm kev siv bromine lossis hydrogen-raws cov nplaim hluav taws retardants yog tias kev ua kom xeb thiab ib puag ncig cov pa roj av thiab ib puag ncig cov pa roj plab yuav ua thaum lawv hlawv, uas yuav ua rau muaj kev puas tsuaj rau cov hluav taws xob. Kev siv cov nplaim taws inorganic retardants xws li hydrated alumina, magnesium sib txuas thiab cov nplaim taws uas tsis tshua muaj pa roj av thiab tsis tshua muaj tshuaj lom retardant retardant betression, txawm hais tias lawv muaj cov teebmeem pa hluav taws xob tsis tshua muaj txiaj ntsig. Txawm li cas los xij, yog tias tus nqi ntawm inorganic nplaim reter tseem loj heev, tsis yog qhov loj dua ntawm cov nplaim hluav taws xob ntxiv rau lub cob, nws yuav cuam tshuam Cov khoom siv muaj zog thiab cov hluav taws xob ntawm cov cob qhia tom qab kho tau.
Tam sim no muaj ntau tus neeg txawv teb chaws tau tshaj tawm cov thev naus laus zis ntawm kev siv cov roj ntsha phosphorus-raws li cov nplaim hluav taws xob tsis muaj tshuaj lom thiab cov nplaim hluav taws xob tsawg. Phosphorus-raws cov nplaim hluav taws retardants muaj cov nplaim taws txiav retardant nyhuv. Cov roj ntsha ua piv rau thaum lub sijhawm tiv thaiv tuaj yeem yog cov txheej txheem ruaj khov, npog cov roj av ruaj khov, npog cov pa roj carbon monoxide, npog cov pa roj carbon monoxide, npog cov pa roj carbon monoxide Yog li tiv thaiv kev sib txuas thiab tib lub sijhawm phosphorus-raws li cov nplaim hluav taws xob rov qab nrog halogen nplaim retardants, uas muaj cov nyhuv pom tseeb heev. Ntawm chav kawm, kev tshawb fawb yav tom ntej kev coj ntawm nplaim retardant resin yog cov pa luam yeeb tsawg, tsawg toxicity thiab tus nqi tsawg. Lub zoo tshaj plaws resin yog haus luam yeeb-dawb, qis-toxic, tsawg tus nqi, muaj tsis ntxiv cov khoom siv ntxiv, thiab tuaj yeem cuam tshuam nrog cov nroj tsuag ntau lawm.
3.Txhua Khaub Ncaws
Piv nrog cov thawj cov khoom lag luam polyester resin ntau yam, cov kev cob qhia kev nruj tam sim no tau zoo dua. Txawm li cas los xij, nrog rau kev txhim kho ntawm kev lag luam hauv qab txoj kev lag luam tsis muaj kev lag luam, ntau yam tshiab tau muab rau cov khoom lag luam uas tsis muaj peev xwm ua tau ntawm cov kab mob tsis txaus ntseeg, tshwj xeeb tshaj yog nyob rau hauv cov nqe lus ntawm kev nruj. Tus Brittleness ntawm cov resaturated unsaturated tom qab kev kho tau yuav luag los ua qhov teeb meem tseem ceeb txwv kev txhim kho cov resaturated resins. Seb nws yog cov khoom lag luam pov cov khoom lag luam lossis cov khoom lag luam lossis cov khoom lag luam muag lossis qhov ntsuas tsis zoo rau kev ntsuas cov khoom lag luam zoo.
Tam sim no, qee cov neeg ua lag luam tawm txawv teb chaws siv cov txheej txheem ntawm kev ntxiv Resin txhawm rau txhim kho kev nruj. Xws li ntxiv cov polyester, styrene-butadiene-butadiene roj hmab thiab roj hmab styrene-butadiene cov roj hmab, thiab lwm yam. Nws kuj tseem siv tau los qhia cov polymers rau hauv lub ntsiab ntawm cov qauv tsim kho lub zog thiab cov khoom siv polyesthane tsim los, uas muaj zog polyester thiab cuam tshuam rau lub zog ntawm lub zog thiab kev cuam tshuam lub zog ntawm lub resin. , Txoj kev ua nruj no belongs rau txoj kev tshuaj lom. Siv kev sib txuam ntawm lub cev thiab tshuaj kom tawv kuj tseem siv tau, xws li sib xyaw ua ke polyester tsawg dua los ua kom tiav cov khoom xav tau.
Ntawm tam sim no, SMC cov ntawv tau siv dav hauv kev lag luam tsheb vim lawv lub teeb, lub zog siab, xeb kuj, thiab tsim qauv tsim. Rau qhov tseem ceeb xws li cov vaj tse nyob hauv tsheb, rooj sab nraud, thiab sab nraud kom huv, yog qhov yuav tsum muaj, xws li cov hlua hluav taws xob sab nrauv. Cov neeg tiv thaiv tuaj yeem khoov rov qab mus rau qhov tsawg tsawg thiab rov qab mus rau lawv cov qauv qub tom qab cuam tshuam me ntsis. Nce cov txheej txheem txheej txheem ntawm cov khaub ncaws uas feem ntau loses lwm cov khoom ntawm cov cob, xws li lub zog, lub zog ntawm lub zog thaum tsim kho. Txhim kho qhov nyuaj ntawm cov cob muaj sia tsis muaj kev poob lwm cov khoom lag luam uas tau dhau los ua lub ntsiab lus tseem ceeb hauv kev tshawb fawb.
4.Lawv Styrenene Volatene Volatile Resin
Nyob rau hauv tus txheej txheem ntawm kev ua cov khoom lag luam tsis txaus ntseeg, uas tsis muaj kev phom sij yuav ua rau muaj kev puas tsuaj loj rau kev kho cov neeg ua haujlwm. Nyob rau tib lub sijhawm, STyrene raug tso rau hauv huab cua, uas yuav ua rau muaj huab cua daj loj. Yog li ntawd, ntau tus tub ceev xwm txwv qhov pub dawb ntawm styrene nyob rau hauv huab cua ntawm cov kev ua haujlwm ntau lawm. Piv txwv li, hauv Tebchaws Asmeskas, nws qib kev tso cai raug tso cai) yog 50PPM, thaum nyob rau hauv Switzerland nws tus nqi tsawg yog 25pplm, xws li cov ntsiab lus tsawg tsis yooj yim kom ua tiav. Cia siab rau qhov cua muaj zog kuj muaj tsawg. Nyob rau tib lub sijhawm, qhov cua muaj zog kuj tseem yuav ua rau qhov ploj ntawm styrene los ntawm cov khoom lag luam thiab volatilization ntawm ntau ntau ntawm styrene mus rau saum huab cua. Yog li ntawd, nrhiav txoj hauv kev los txo cov volatilization ntawm styrene, los ntawm lub hauv paus, nws tseem tsim nyog kom ua tiav cov haujlwm no hauv cov khoom lag luam. Qhov no yuav tsum muaj kev txhim kho cov roj uas tsis muaj zog styrene (LSE)
Txo cov ntsiab lus ntawm kev hloov pauv monomers tau muaj lub ncauj lus tsim los ntawm cov kev lag luam Polyester tsis muaj kev lag luam hauv xyoo tsis ntev los no. Muaj ntau txoj hauv kev tam sim no siv: (1) tus txheej txheem ntawm kev ntxiv qhov tsis sib xws tsis muaj volatility inibitors; (2) cov qauv ntawm cov txhab nyiaj tsis muaj sia tsis muaj styrinylzene, vinrelylbude, α-methyl styrene, α-meth-metyl styrene, α-meth-metyl styrene muaj stydrene monomers; (3) Cov qauv ntawm cov txiaj ntsig polyester tsis tau siv cov Monomende qis thiab cov nqaj hlau ua ke xws li estre coprolymers nrog styrene monomers: (4) Lwm txoj kev los txo cov volatilization ntawm styrene yog los qhia txog lwm cov chav nyob zoo li lub teeb meem tsis txaus ntseeg, thiab thaum kawg txo cov ntsiab lus ntawm styrene monomer.
Hauv kev nrhiav txoj hauv kev los daws cov teeb meem ntawm kev siv lub viav vias, nws yog qhov tsim nyog ua kom muaj kev nkag siab ntawm cov ntaub ntawv molding xws li cov ntaub ntawv raw rau kev lag luam rau kev lag luam khoom lag luam, thiab Qhov sib xyaw nrog cov resin system. , Resin Reactivity, viscamosity, cov khoom siv mechanmosity ntawm Resin tom qab molding, thiab tsis muaj kev cai lij choj rau kev txwv cov kev txwv ntawm Styrene. Txawm li cas los xij, nrog kev txhim kho ntawm cov neeg muaj kev muaj txoj sia nyob thiab kev tiv thaiv kev tiv thaiv kev noj qab haus huv ua ntej lawv txoj cai lij choj ib puag ncig.
5.Corrosion-resistant resin
Ib qho ntawm cov kev siv cov resaturated polyester unsaturated yog lawv corrosion tsis kam rau cov tshuaj xws li organic cov kuab tshuaj, acids, hauv qab, thiab ntsev. Raws li cov lus qhia ntawm cov kws tshaj lij ntawm cov tuam txhab network uas tsis tau muaj zog, cov khoom siv txhim kho uas muaj kev tiv thaiv tau faib ua cov hom hauv qab no: (1) O-Benzene hom; (2) Hom-Benzene; (3) hom p-benzene; (4) bisphenol hom; (5) Hom hom khoom ester; Thiab lwm tus xws li Xylene hom, halogen-muaj hom sib xyaw, thiab lwm yam ntawm cov kws tshawb fawb txuas ntxiv yog corrosion kuj tau kawm meej. Lub resin tau hloov kho los ntawm ntau txoj kev, xws li qhia cov pob zeb molecular, lossis siv cov qauv siv hluav taws xob uas tsis muaj zog, uas yog qhov tseem ceeb heev rau kev txhim kho cov corrosion tsis kam ntawm lub resin. Lub corrosion tsis zoo yog qhov ua tau zoo heev, thiab cov resin tsim los ntawm cov txheej txheem ntawm kev sib xyaw cov kua qaub acid tuaj yeem tseem tuaj yeem ua tiav kev ua kom haum corrosion zoo dua.
Piv nrogEpoxy resins,Tus nqi qis thiab kev ua haujlwm yooj yim ntawm cov resatural polyester tau ua qhov zoo. Raws li cov resaturated resin cov kws txawj, cov corrosion tawm tsam ntawm unsaturated polyester resin, tshwj xeeb tshaj plaws alkali, yog qhov deb dua rau ntawd epoxy cob qhia. Tsis tuaj yeem hloov cov epoxy cob qhia. Tam sim no, sawv ntawm cov plag tsev tiv thaiv corrosion tau tsim lub sijhawm thiab cov nyom rau cov nyiaj tsis tau. Yog li ntawd, txoj kev txhim kho ntawm tshwj xeeb tiv thaiv corrosion muaj cov kev cia siab.
Gel Txheej tsho ua lub luag haujlwm tseem ceeb hauv cov khoom siv sib xyaw. Nws tsis tsuas yog lub luag haujlwm zoo nkauj nyob rau saum npoo ntawm Frp cov khoom, tab sis kuj ua lub luag haujlwm hauv kev hnav tsis kam, kev tiv thaiv corrosion tsis kam. Raws li cov kws tshaj lij los ntawm cov kev coj ua tsis tau zoo, kev txhim kho lub tsho muaj zog ntawm cov roj av tsis muaj zog Muaj ib qho kev ua lag luam loj rau tshav kub-resistant gel lub tsho loj hauv gel lub tsho tiv no resins. Yog tias Frp cov khoom yog raus rau hauv dej kub ntev ntev, hlwv yuav tshwm nyob rau saum npoo. Nyob rau tib lub sijhawm, vim kev nkag mus rau hauv cov dej mus rau hauv cov khoom siv sib xyaw, cov hmoov txheem saum npoo av yuav maj mam nthuav. Cov hlwv yuav tsis yog cuam tshuam rau cov tsos ntawm lub tsho loj gel yuav maj mam txo cov khoom muaj zog ntawm cov khoom lag luam.
Ua Mov Ua Yeeb Nkab thiab Cov Hlau Polymers, Tebchaws Asmeskas, siv cov txheej txheem Epoxy thiab Gly-Terminated Resin nrog cov dej viscosity tsis muaj zog thiab cov kuab tshuaj tiv thaiv zoo heev. Ib qho ntxiv, lub tuam txhab tseem siv polyether polyol-hloov thiab opoxy-terminated resin) Tsuas yog muaj dej zoo tsis kam, tab sis kuj muaj cov khoom muaj zog zoo thiab muaj zog. Cov kuab tshuaj lossis lwm yam qis-molecular nkag mus rau hauv Frp khoom siv cov txheej txheem los ntawm cov hnab dej gel, ua cov khoom siv dej-resistant nrog cov khoom siv tau zoo.
7.Yhaum kho cov khoom lag luam polyester unsaturated
Lub teeb kho cov yam ntxwv ntawm cov khoom lag luam tsis txaus ntseeg yog lub neej ntev lub neej thiab kho nrawm nrawm nrawm. Unsaturated polyester resins tuaj yeem ua tau kom tau raws li qhov yuav tsum tau txwv tsis pub siv lub zog loj ntawm Styrene los ntawm kev kho lub teeb. Vim kev nce qib ntawm cov duab ntawm cov duab thiab cov teeb pom kev zoo, lub hauv paus rau kev txhim kho ntawm photocurable resins tau nteg. Ntau UV-curable undaturated polyester resins tau ua tiav tau zoo thiab muab tso rau hauv kev tsim khoom hauv ntau. Cov khoom siv, cov txheej txheem kev ua tau zoo thiab cov npoo hnav tsis kam ua, thiab kev txhim kho ntau dua los ntawm kev siv tus txheej txheem no.
8.LW-tus nqi resin nrog cov khoom tshwj xeeb
Xws li resins suav nrog foamed resins thiab aqueous resins. Tam sim no, qhov tsis txaus ntawm cov ntoo hluav taws xob muaj txoj kev nce qib hauv qhov ntau. Kuj tseem muaj cov neeg ua haujlwm tsis txaus ntseeg ua haujlwm hauv kev ua ntoo ua lag luam, thiab cov neeg ua haujlwm no tau them nyiaj ntxiv. Xws li cov kev mob tsim cov mob rau kev ua tshuab plastics kom nkag mus hauv lub khw muag khoom ntoo. Cov khoom ua kom tsis muaj peev xwm ua suab nrov thiab muaj cov dej uas muaj dej ua ke yuav raug tsim los ua cov ntoo tsim khoom hauv cov rooj tog kev lag luam vim lawv tus nqi qis thiab lub zog siab. Daim ntawv thov yuav qeeb thaum pib, thiab tom qab ntawd nrog kev txhim kho txuas ntxiv ntawm kev ua cov thev naus laus zis, daim ntawv thov no yuav raug tsim kho kom sai.
Cov resaturated polyester resins tuaj yeem ua rau muaj cov foamed ua cov khoom ua kom muaj cov phab ntsa, ua ntej ua ntej chav dej sib txawv, thiab ntau dua. Lub Tougness thiab lub zog ntawm cov yas foamed yas nrog unsaturated polyester resin raws li lub matrix zoo dua li ntawm cov foamed ps; Nws yog qhov yooj yim rau cov txheej txheem dua li ua foamed PVC; Tus nqi yog qis dua li ntawm foamed polyurethane yas, thiab qhov sib ntxiv ntawm nplaim retardants tseem tuaj yeem ua kom nws nplaim taws. Txawm hais tias daim ntawv thov Technology ntawm Resin tau tsim kev tsim kho tag nrho, daim ntawv thov ntawm Foamed cov khoom lag luam polyester tsis tau them nyiaj ntau. Tom qab kev tshawb nrhiav, qee cov resin cov tuam ntxhab muaj kev txaus siab rau kev tsim cov khoom tshiab no. Qee cov teeb meem loj (skilling, honeyomb qauv kev sib raug zoo tsis tau siv tag nrho cov nqi lag luam. Cov teeb meem no tau daws, cov khoom plig no yuav tau siv dav hauv cov chaw xws li ua npuas ncauj nplaim hluav taws xob dua li siv nws txoj kev lag luam.
Dej-muaj cov resatural polyester resins tuaj yeem faib ua ob hom: kua-soluble hom thiab hom emulsion. Thaum ntxov li 1960s txawv teb chaws, muaj cov ntawv sau ua ke thiab cov ntawv sau ua ntaub ntawv hauv thaj chaw no. Cov dej uas muaj dej yog ntxiv rau cov dej ua cov muab tub lim rau ntawm cov khoom lag luam polyester ua ntej cob cov dej ua ntej cov ntsiab lus dej tuaj yeem yog li 50%. Xws li resin yog hu ua wep resin. Lub resin muaj cov yam ntxwv ntawm tus nqi qis, lub teeb yuag tom qab kho, zoo nplaim retardancy thiab qis shrinkage. Kev tsim kho thiab kev tshawb fawb ntawm cov dej-muaj cob qhia hauv kuv lub teb chaws pib xyoo 1980s, thiab nws tau ntev lub sijhawm. Nyob rau hauv cov nqe lus ntawm daim ntawv thov, nws tau siv los ua tus neeg sawv cev anchoring. Aqueous unsaturated polyester resin yog tus tsiaj tshiab ntawm UPR. Cov thev naus laus zis hauv chav kuaj yog ua ntau dua thiab paub tab, tab sis muaj kev tshawb fawb tsawg dua ntawm daim ntawv thov. Cov teeb meem uas yuav tsum tau daws teeb meem ntxiv yog kev ruaj ntseg ntawm emulsion, qee cov teeb meem hauv kev kho thiab tshuaj moulding, thiab cov teeb meem ntawm kev pom zoo ntawm cov qhua tuaj noj mov. Feem ntau, 10,000-tuj-ton unsaturated polyester resin tuaj yeem tsim tau li 600 tons ntawm cov dej khib nyiab txhua xyoo. Yog hais tias shrinkage tsim nyob rau hauv cov txheej txheem ntau lawm ntawm unsaturated polyester resin yog siv los tsim tus nqi ntawm cov cobu thiab daws cov teeb meem ntawm kev tiv thaiv ib puag ncig ib puag ncig.
Peb kam ua cov khoom lag luam hauv qab no: Cov Khoom Siv Hluav Taws Xob Polyester.Vinyl resin; gel tsho tiv no cob; Epoxy cob qhia.
Peb kuj tseem tsimFiberglass ncaj rov qab,Fiberglass Mats, fiberglass mesh, thiabFiberglass Woven Roving.
Tiv tauj peb:
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Lub Sijhawm Post: Jun-08-2022
