Polyurethane foaming tus neeg sawv cev
Polyurethane foaming tus neeg sawv cev yog cov khoom ntawm kev sib xyaw ua ke ntawm aerosol technology thiab polyurethane ua npuas ncauj technology.Muaj ob hom spongy xeev ntawm lub raj hom thiab hom phom.Styrofoam yog siv los ua tus neeg sawv cev foaming hauv kev tsim cov microcellular foams. Feem ntau nws tuaj yeem muab faib ua ob hom: hom lub cev thiab hom tshuaj. Qhov no yog nyob ntawm seb qhov kev tsim cov roj yog cov txheej txheem ntawm lub cev (Volatilization lossis sublimation) lossis cov txheej txheem tshuaj (Kev puas tsuaj ntawm cov qauv tshuaj lossis lwm yam tshuaj tiv thaiv)
English npe
PU ua npuas ncauj
Technology
Aerosol technology thiab polyurethane ua npuas ncauj technology
Hom
Tube hom thiab phom hom
Taw qhia
Polyurethane foaming tus neeg saib xyuas lub npe tag nrho cov khoom siv polyurethane ua npuas ncauj sealant. Lwm lub npe: foaming agent, styrofoam, PU sealant. English PU FOAM yog cov khoom ntawm kev sib xyaw ua ke ntawm aerosol technology thiab polyurethane ua npuas ncauj tshuab. Nws yog ib yam khoom tshwj xeeb polyurethane uas cov khoom xws li polyurethane prepolymer, tshuab tshuab, thiab catalyst tau ntim rau hauv lub siab-resistant aerosol. Thaum cov khoom siv txau los ntawm lub tank aerosol, cov khoom ua npuas dej zoo li polyurethane yuav nthuav dav sai thiab yuav ua kom khov thiab ua rau cov huab cua los yog cov dej noo hauv cov substrate los ua npuas dej.Ntau yam kev siv. Nws muaj qhov zoo ntawm pem hauv ntej foaming, siab expansion, me me shrinkage, thiab lwm yam.Thiab ua npuas ncauj muaj zog zoo thiab siab adhesion. Cov ua npuas ncauj kho tau muaj ntau yam teebmeem xws li caulking, kev sib txuas, sealing, rwb thaiv tsev kub, suab nqus, thiab lwm yam.Nws yog ib puag ncig tus phooj ywg, txuag hluav taws xob thiab siv tau yooj yim hauv tsev. Nws tuaj yeem siv rau kev sib khi thiab ntsaws, txhaws qhov khoob, kho thiab kev sib txuas, kev txuag hluav taws xob thiab lub suab rwb thaiv tsev, thiab tshwj xeeb tshaj yog tsim rau kev sib khi thiab dej tsis sib haum ntawm cov yas hlau lossis aluminium alloy qhov rooj thiab qhov rais thiab phab ntsa.
Kev piav qhia txog kev ua haujlwm
Feem ntau, lub sij hawm ziab saum npoo yog li 10 feeb (hauv qab chav sov 20 ° C).Lub sij hawm qhuav tag nrho txawv nrog qhov kub thiab av noo. Nyob rau hauv ib txwm muaj xwm txheej, tag nrho lub sij hawm qhuav nyob rau hauv lub caij ntuj sov yog li 4-6 teev, thiab nws yuav siv sij hawm 24 teev los yog ntau tshaj kom qhuav nyob rau hauv ib ncig ntawm xoom nyob rau hauv lub caij ntuj no, nyob rau hauv ib txwm tej yam kev mob ntawm kev siv (thiab nrog ib tug npog txheej nyob rau saum npoo), nws yog kwv yees tias nws lub neej ua haujlwm yuav tsis tsawg dua kaum xyoo. Cov ua npuas ncauj kho tau zoo elasticity thiab adhesion nyob rau hauv qhov kub ntawm -10 ℃ ~ 80 ℃. Cov ua npuas ncauj kho tau muaj lub luag haujlwm ntawm caulking, kev sib txuas, sealing, thiab lwm yam. Ntxiv rau, cov nplaim hluav taws kub-retardant polyurethane foaming tus neeg sawv cev tuaj yeem ncav cuag B thiab C qib nplaim hluav taws.
Qhov tsis zoo
1. Polyurethane ua npuas ncauj caulking tus neeg saib xyuas, qhov kub thiab txias, nws yuav ntws, thiab kev ruaj ntseg tsis zoo. Tsis ruaj khov li polyurethane txhav ua npuas ncauj.
2. Polyurethane ua npuas ncauj sealant, lub foaming ceev yog qeeb heev, kev tsim kho hauv cheeb tsam loj tsis tuaj yeem ua tiav, lub tiaj tiaj tsis tuaj yeem tswj tau, thiab ua npuas dej tsis zoo.
3. Polyurethane ua npuas ncauj sealant, kim
Daim ntawv thov
1. Qhov rooj thiab qhov rais installation: sealing, kho thiab kev sib txuas ntawm lub qhov rooj thiab qhov rais thiab phab ntsa.
2. Advertising qauv: qauv, xuab zeb rooj ntau lawm, exhibition board kho
3. Soundproofing: Sau cov qhov khoob hauv kev kho kom zoo nkauj ntawm chav hais lus thiab chav tshaj tawm, uas tuaj yeem ua lub suab rwb thaiv tsev thiab ua kom ntsiag to.
4. Kev ua vaj: paj npaj, ua vaj thiab kev tsim kho vaj tse, lub teeb thiab zoo nkauj
5. Kev tu txhua hnub: kho cov kab noj hniav, qhov khoob, cov nplais phab ntsa, cov vuas hauv pem teb, thiab cov plag tsev
6. Waterproof plugging: Kho thiab ntsaws cov xau hauv cov kav dej, cov kav dej phwj tuaj, thiab lwm yam.
7. Ntim thiab xa khoom: Nws tuaj yeem yooj yim qhwv cov khoom muaj txiaj ntsig thiab tsis yooj yim, txuag lub sijhawm thiab ceev, shockproof thiab siab resistant
Cov lus qhia
1. Ua ntej kev tsim kho, cov roj stains thiab cov plua plav ntab ntawm qhov chaw tsim kho yuav tsum raug tshem tawm, thiab cov dej me me yuav tsum tau txau rau ntawm qhov chaw tsim kho.
2. Ua ntej siv, co lub polyurethane foaming tus neeg sawv cev tank rau yam tsawg 60 vib nas this kom paub meej tias cov ntsiab lus ntawm lub tank yog uniform.
3. Yog tias siv phom-hom polyurethane foaming tus neeg sawv cev, tig lub tank upside down mus txuas nrog rab phom xov, tig rau lub valve ntws, thiab kho qhov ntws ua ntej txau. Yog tias siv lub raj hom polyurethane foaming tus neeg sawv cev, ntsia hlau cov yas nozzle ntawm lub valve xov, kho cov yeeb nkab yas nrog qhov sib txawv, thiab nias lub nozzle los tsuag.
4. Ua tib zoo saib xyuas qhov ceev ceev thaum txau, feem ntau cov ntim ntim tuaj yeem yog ib nrab ntawm qhov xav tau ntim ntim. Sau ntsug qhov khoob ntawm hauv qab mus rau saum.
5. Thaum sau qhov khoob xws li qab nthab, cov npuas dej uas tsis tau kho yuav poob vim lub ntiajteb txawj nqus. Nws raug nquahu kom muab kev txhawb nqa kom raug tam sim tom qab sau, thiab tom qab ntawd tshem tawm cov kev txhawb nqa tom qab ua npuas dej tau kho thiab khi rau ntawm phab ntsa ntawm qhov sib txawv.
6. Cov npuas yuav debonded hauv li 10 feeb, thiab nws tuaj yeem txiav tom qab 60 feeb.
7. Siv rab riam txiav tawm cov npuas dej ntau dhau, thiab tom qab ntawd coated nrog cov cement mortar, xim los yog silica gel.
8. Ntsuas tus neeg sawv cev foaming raws li cov kev xav tau, ntxiv 80 zaug ntawm cov dej ntshiab kom dilute ua kua foaming; Tom qab ntawd siv lub tshuab ua npuas dej kom ua npuas dej ua npuas dej, thiab tom qab ntawd ntxiv cov npuas dej rau hauv cov khoom sib xyaw magnesite cement slurry raws li tus nqi predetermined do tusyees, thiab thaum kawg xa cov foamed magnesite slurry rau lub tshuab sib sau los yog pwm rau kev sib sau.
Cov Lus Qhia Txog Kev Tsim Kho:
Qhov kev siv kub ntawm polyurethane foaming tus neeg sawv cev tank yog +5 ~ + 40 ℃, zoo tshaj plaws siv kub + 18 ~ + 25 ℃. Nyob rau hauv cov ntaub ntawv ntawm qhov kub thiab txias, nws raug nquahu kom tso cov khoom no ntawm qhov kub thiab txias ntawm +25 ~ + 30 ℃ rau 30 feeb ua ntej siv los xyuas kom meej tias nws qhov kev ua tau zoo tshaj plaws.Qhov kub tsis kam ntawm cov ua npuas ncauj yog -35 ℃ ～ +80 ℃.
Polyurethane foaming tus neeg sawv cev yog cov dej noo-kho ua npuas ncauj. Nws yuav tsum tau txau rau ntawm qhov chaw ntub dej thaum siv. Qhov siab dua cov av noo, qhov curing sai dua.Ua npuas dej tsis huv tuaj yeem ntxuav nrog tus neeg ua haujlwm tu, thaum kho cov npuas yuav tsum tau muab tshem tawm los ntawm kev siv tshuab (xuab zeb lossis txiav). Cov ua npuas ncauj kho yuav tig daj tom qab irradiated los ntawm ultraviolet lub teeb. Nws raug nquahu kom coated ua npuas ncauj nrog lwm cov ntaub ntawv (cement mortar, xim, thiab lwm yam). Tom qab siv rab phom tsuag, thov ntxuav nws nrog tus neeg saib xyuas tshwj xeeb tam sim ntawd.
Thaum hloov lub tank, co lub tank tshiab kom zoo (tsawg kawg yog 20 zaug), tshem lub tank khoob, thiab hloov lub tank tshiab sai sai los tiv thaiv cov phom phom txuas ntawm qhov chaw ruaj khov.
Lub valve tswj kev khiav dej num thiab qhov cuam tshuam ntawm rab phom txau tuaj yeem tswj qhov loj ntawm cov npuas dej ntws. Thaum txhaj tshuaj nres, tam sim ntawd kaw lub ntws valve nyob rau hauv ib tug clockwise kev taw qhia.
Kev Tiv Thaiv Kev Nyab Xeeb
Ua npuas ncauj uas tsis tau kho yog nplaum rau ntawm daim tawv nqaij thiab khaub ncaws. Tsis txhob kov koj cov tawv nqaij thiab khaub ncaws thaum siv. Polyurethane foaming agent tank muaj lub siab ntawm 5-6kg / cm2 (25 ℃), thiab qhov kub yuav tsum tsis txhob siab tshaj 50 ℃ thaum lub sij hawm cia thiab tsheb thauj mus los kom tsis txhob tawg ntawm lub tank.
Polyurethane foaming tus neeg sawv cev tso tsheb hlau luam yuav tsum tau tiv thaiv los ntawm tshav ntuj ncaj qha thiab cov menyuam yaus raug txwv nruj heev. Cov tso tsheb hlau luam khoob tom qab siv, tshwj xeeb tshaj yog siv cov polyurethane foaming tank uas tsis tau siv, yuav tsum tsis txhob littered. Nws yog txwv tsis pub hlawv lossis puncture lub tank khoob.
Khaws kom deb ntawm cov nplaim taws thiab tsis txhob sib cuag nrog cov khoom siv hluav taws xob thiab tawg.
Qhov chaw tsim kho yuav tsum muaj qhov cua zoo, thiab cov neeg ua haujlwm tsim kho yuav tsum hnav cov hnab looj tes ua haujlwm, hnav khaub ncaws thiab tsom iav thaum tsim kho, thiab tsis txhob haus luam yeeb.
Nyob rau hauv rooj plaub uas tus npaus kov lub qhov muag, thov yaug nrog dej ua ntej mus rau lub tsev kho mob rau kev kho mob; yog tias nws kov daim tawv nqaij, yaug nrog dej thiab xab npum
Cov txheej txheem ua npuas dej
1. Prepolymer txoj kev
Cov txheej txheem ua ntej-polymer foaming txheej txheem yog ua kom (cov khoom siv dawb) thiab (cov khoom siv dub) ua ntej-polymer, thiab tom qab ntawd ntxiv dej, catalyst, surfactant, lwm yam additives rau pre-polymer, thiab sib tov nyob rau hauv high-speed stirring. Soak, tom qab kho, nws tuaj yeem kho tau ntawm qhov kub thiab txias
2. Semi-prepolymer txoj kev
Cov txheej txheem foaming ntawm cov txheej txheem semi-prepolymer yog ua ib feem ntawm polyether polyol (cov khoom siv dawb) thiab diisocyanate (cov khoom siv dub) rau hauv prepolymer, thiab tom qab ntawd muab lwm qhov ntawm polyether lossis polyester polyol nrog diisocyanate, dej, Catalysts, surfactants, lwm yam additives, thiab lwm yam yog ntxiv thiab tov nyob rau hauv high-speed stirring rau foaming.
3. Ib-kauj ruam foaming txheej txheem
Ntxiv polyether lossis polyester polyol (cov khoom siv dawb) thiab polyisocyanate (cov khoom siv dub), dej, catalyst, surfactant, tshuab tshuab, lwm yam additives thiab lwm yam raw khoom nyob rau hauv ib kauj ruam, thiab sib tov nyob rau hauv high-speed stirring thiab ces ua npuas ncauj.
Ib-kauj ruam foaming txheej txheem yog ib qho txheej txheem uas nquag siv. Kuj tseem muaj txoj hau kev foaming, uas yog txoj kev yooj yim tshaj plaws. Tom qab tag nrho cov khoom siv raw tau raug ntsuas kom raug, lawv tau muab tso rau hauv ib lub thawv, thiab tom qab ntawd cov khoom siv raw yog sib xyaw ua ke thiab txhaj rau hauv pwm lossis qhov chaw uas yuav tsum tau ua npuas dej. Lus Cim: Thaum hnyav, polyisocyanate (cov khoom siv dub) yuav tsum tau ntsuas qhov kawg.
Rigid polyurethane ua npuas ncauj yog feem ntau foamed ntawm chav tsev kub, thiab cov txheej txheem molding yog kuj yooj yim. Raws li qib ntawm kev tsim kho tshuab, nws tuaj yeem muab faib ua phau ntawv foaming thiab mechanical foaming. Raws li lub siab thaum lub sij hawm foaming, nws tuaj yeem muab faib ua lub zog siab foaming thiab low-pressure foaming. Raws li txoj kev molding, nws tuaj yeem muab faib ua cov foaming thiab txau foaming.
Txoj cai
Polyurethane foaming tus neeg sawv cev tau teev los ntawm Ministry of Construction ua cov khoom lag luam los txhawb thiab siv rau lub sijhawm "Kaum Ib Hlis Tsib Xyoo" lub sijhawm.
Kev cia siab ua lag luam
Txij li thaum 2000 cov khoom raug txhawb nqa thiab siv hauv Suav teb, kev lag luam xav tau nthuav dav sai. Xyoo 2009, kev noj txhua xyoo ntawm kev tsim kho hauv lub tebchaws tau tshaj 80 lab cov kaus poom. Nrog rau kev txhim kho cov kev xav tau ntawm lub tsev zoo thiab kev txhawb nqa lub tsev txuag hluav taws xob, cov khoom zoo li no Cov nyiaj glutathione yuav nce ntxiv rau yav tom ntej.
Hauv tsev, cov txheej txheem tsim thiab kev tsim khoom ntawm cov khoom lag luam no tau ua tiav tiav, cov tshuaj fluorine-dawb foaming uas tsis ua kom cov txheej txheej ozone feem ntau yog siv, thiab cov khoom uas muaj pre-foaming (1) tau tsim. Tsuas yog qee cov tuam txhab lag luam tseem siv cov khoom siv txawv teb chaws, lwm cov ntaub ntawv txhawb nqa tau ua hauv tsev.
Phau ntawv qhia
(1) Lub npe hu ua pre-foaming txhais tau hais tias 80% ntawm polyurethane foaming tus neeg sawv cev tau foamed tom qab txau, thiab tom qab foaming yog heev me me.
Qhov no tso cai rau cov neeg ua haujlwm tuav lub zog ntawm lawv txhais tes thaum siv rab phom foaming, uas yooj yim thiab yooj yim thiab tsis siv cov kua nplaum. Tom qab ua npuas dej tau txau, cov kua nplaum maj mam ua tuab dua li thaum nws raug tua.
Nyob rau hauv txoj kev no, nws yog ib qho nyuaj rau cov neeg ua hauj lwm los tuav lub zog ntawm rub tus txhais tes ntawm lawv txhais tes, thiab nws yog ib qho yooj yim rau nkim kua nplaum, tsawg kawg yog 1/3 ntawm cov pov tseg. Tsis tas li ntawd, cov kua nplaum tom qab nthuav dav yog ib qho yooj yim rau nyem lub qhov rooj thiab qhov rais tom qab kho, xws li cov kua nplaum zoo tib yam hauv khw Hoobkas.
Post lub sij hawm: May-25-2021