Ib hom tshiab ntawm polyurethane nplaum tau npaj los ntawm kev siv cov molecule polyacids me me thiab me me molecule polyols ua cov khoom siv raw los npaj prepolymer. Thaum lub sij hawm cov txheej txheem txuas ntxiv, hyperbranched polymers thiab HDI trimers tau nkag mus rau hauv cov qauv polyurethane. Cov txiaj ntsig kev sim qhia tau hais tias cov nplaum uas tau npaj rau hauv txoj kev tshawb no muaj qhov tsim nyog viscosity, lub neej ntev ntawm cov nplaum nplaum, tuaj yeem kho tau sai ntawm chav tsev kub, thiab muaj cov khoom sib txuas zoo, lub zog sealing thiab thermal stability.

Composite saj zawg zog ntim muaj qhov zoo ntawm exquisite tsos, dav daim ntawv thov ntau yam, yooj yim thauj mus los, thiab tsawg ntim nqi. Txij li thaum nws cov kev taw qhia, nws tau dav siv nyob rau hauv cov zaub mov, tshuaj, tshuaj niaj hnub, electronics thiab lwm yam lag luam, thiab muaj kev hlub los ntawm cov neeg siv khoom. Kev ua tau zoo ntawm cov khoom ntim sib xyaw ua ke tsis yog tsuas yog cuam tshuam nrog cov khoom siv zaj duab xis, tab sis kuj nyob ntawm qhov ua tau zoo ntawm cov nplaum sib xyaw. Polyurethane nplaum muaj ntau yam zoo xws li kev sib koom ua ke siab, muaj zog adjustability, thiab tu cev thiab kev nyab xeeb. Tam sim no nws yog lub hauv paus txhawb nqa cov nplaum rau cov khoom ntim sib xyaw ua ke thiab ua kom pom tseeb ntawm kev tshawb fawb los ntawm cov tuam txhab ua nplaum loj.

Kub-kub aging yog ib tug indispensable txheej txheem nyob rau hauv kev npaj ntawm saj zawg zog ntim. Nrog rau lub teb chaws txoj cai lub hom phiaj ntawm "carbon ncov" thiab "carbon neutrality", ntsuab ib puag ncig tiv thaiv, tsawg-carbon emission txo, thiab high efficiency thiab lub zog txuag tau dhau los ua lub hom phiaj ntawm txoj kev loj hlob ntawm txhua qhov chaw ntawm lub neej. Qhov kub thiab txias lub sij hawm muaj kev cuam tshuam zoo rau lub tev lub zog ntawm cov zaj duab xis sib xyaw. Raws li txoj cai, qhov kub ntawm cov laus thiab lub sij hawm ntev dua, qhov kev ua tiav cov tshuaj tiv thaiv ntau dua thiab qhov zoo ntawm kev kho cov nyhuv. Hauv cov txheej txheem kev tsim khoom tiag tiag, yog tias qhov kub thiab txias tuaj yeem txo qis thiab lub sijhawm laus tuaj yeem ua kom luv, nws yog qhov zoo tshaj plaws kom tsis txhob muaj kev laus, thiab slitting thiab bagging tuaj yeem nqa tawm tom qab lub tshuab tawm. Qhov no tuaj yeem ua tsis tau tsuas yog ua tiav cov hom phiaj ntawm kev tiv thaiv ib puag ncig ntsuab thiab txo qis carbon emission txo, tab sis tseem txuag cov nqi tsim khoom thiab txhim kho kev tsim khoom.

Txoj kev tshawb no yog npaj los ua ke ib hom tshiab ntawm polyurethane nplaum uas muaj viscosity thiab nplaum disc lub neej thaum lub sij hawm tsim thiab siv, tuaj yeem kho tau sai hauv qhov kub thiab txias, nyiam dua tsis muaj qhov kub thiab txias, thiab tsis cuam tshuam rau kev ua tau zoo ntawm ntau yam ntsuas ntawm kev ntim khoom sib xyaw.

1.1 Cov ntaub ntawv sim Adipic acid, sebacic acid, ethylene glycol, neopentyl glycol, diethylene glycol, TDI, HDI trimer, laboratory-made hyperbranched polymer, ethyl acetate, polyethylene film (PE), polyester film (PET), aluminium foil (AL).
1.2 Kev sim ntsuas Desktop hluav taws xob tas li kub cua ziab qhov cub: DHG-9203A, Shanghai Yiheng Scientific Instrument Co., Ltd.; Rotational viscometer: NDJ-79, Shanghai Renhe Keyi Co., Ltd.; Universal tensile kuaj tshuab: XLW, Labthink; Thermogravimetric analyzer: TG209, NETZSCH, Lub teb chaws Yelemees; Kub foob tester: SKZ1017A, Jinan Qingqiang Electromechanical Co., Ltd.
1.3 Synthesis method
1) Kev npaj ntawm prepolymer: Qhuav lub khob plaub-caj dab kom huv si thiab dhau N2 rau hauv nws, tom qab ntawd ntxiv cov ntsuas me me polyol thiab polyacid rau hauv lub khob plaub-caj dab thiab pib nplawm. Thaum qhov ntsuas kub nce mus txog qhov ntsuas kub thiab cov dej tso tawm yog ze rau qhov theoretical dej tso tawm, coj ib qho piv txwv rau cov kua qaub ntsuas. Thaum cov kua qaub yog ≤20 mg / g, pib cov kauj ruam tom ntej ntawm cov tshuaj tiv thaiv; ntxiv 100 × 10-6 metered catalyst, txuas lub tshuab nqus tsev twj tso kua mis thiab pib lub tshuab nqus tsev twj tso kua mis, tswj cov dej cawv tso zis npaum li cas los ntawm lub tshuab nqus tsev kawm ntawv, thaum cov dej cawv tso tawm tiag tiag ze rau qhov theoretical cawv tso zis, coj ib qho piv txwv rau hydroxyl tus nqi kuaj, thiab txiav tawm cov tshuaj tiv thaiv thaum tus nqi hydroxyl ua tau raws li cov qauv tsim. Cov tau txais polyurethane prepolymer yog ntim rau kev siv standby.
2) Kev npaj cov kuab tshuaj raws li polyurethane nplaum: Ntxiv cov ntsuas polyurethane prepolymer thiab ethyl ester rau hauv lub khob plaub-caj dab, cua sov thiab do kom disperse tusyees, tom qab ntawd ntxiv ntsuas TDI rau hauv plaub-caj dab, ua kom sov li 1.0 h, tom qab ntawd ntxiv cov khoom siv hauv tsev hyperbranched polymer ntxiv rau hauv HD0 react, maj mam mus rau 2 h. lub khob plaub-caj dab, ua kom sov li 2.0 h, coj cov qauv los kuaj cov ntsiab lus NCO, txias thiab tso cov ntaub ntawv rau ntim tom qab NCO cov ntsiab lus tsim nyog.
3) Dry lamination: Sib tov ethyl acetate, tus neeg sawv cev tseem ceeb thiab tus neeg sawv cev kho hauv ib qho kev faib ua feem thiab do sib npaug, tom qab ntawd thov thiab npaj cov qauv ntawm lub tshuab laminating qhuav.

1.4 Kev Ntsuas Tus Kheej
1) Viscosity: Siv lub viscometer rotational thiab xa mus rau GB / T 2794-1995 Test method for viscosity of adhesives;
2) T-peel lub zog: sim siv lub tshuab tensile universal, xa mus rau GB / T 8808-1998 tev lub zog kuaj txoj kev;
3) Thaum tshav kub kub foob lub zog: ua ntej siv lub ntsuas cua sov ua kom sov lub foob, tom qab ntawd siv lub tshuab ntsuas tensile universal los kuaj, xa mus rau GB / T 22638.7-2016 tshav kub foob lub zog kuaj txoj kev;
4) Thermogravimetric tsom xam (TGA): Qhov kev ntsuam xyuas tau ua los ntawm kev siv lub ntsuas kub ntsuas kub nrog qhov ntsuas kub ntawm 10 ℃ / min thiab ntsuas qhov ntsuas kub ntawm 50 txog 600 ℃.

2.1 Kev hloov pauv hauv viscosity nrog lub sijhawm sib xyaw Cov viscosity ntawm cov nplaum thiab lub neej ntawm cov roj hmab disc yog cov cim tseem ceeb hauv cov txheej txheem tsim khoom. Yog tias cov viscosity ntawm cov nplaum yog siab dhau, cov kua nplaum siv yuav loj dhau, cuam tshuam rau cov tsos thiab txheej txheej nqi ntawm cov yeeb yaj kiab sib xyaw; Yog tias qhov viscosity tsawg dhau lawm, cov kua nplaum siv yuav tsawg dhau, thiab tus number case tsis tuaj yeem nkag mus tau zoo, uas tseem yuav cuam tshuam rau cov tsos thiab kev sib raug zoo ntawm cov yeeb yaj kiab sib xyaw. Yog tias lub neej ntawm cov roj hmab disc luv dhau lawm, cov viscosity ntawm cov kua nplaum khaws cia rau hauv lub tank kua nplaum yuav nce sai heev, thiab cov kua nplaum tsis tuaj yeem siv tau zoo, thiab cov menyuam roj hmab tsis yooj yim los ntxuav; Yog hais tias lub neej ntawm cov roj hmab disc ntev dhau lawm, nws yuav cuam tshuam rau qhov pib adhesion tsos thiab kev sib koom ua ke ntawm cov khoom sib xyaw, thiab tseem cuam tshuam rau tus nqi kho, yog li cuam tshuam rau kev tsim khoom ntawm cov khoom.

Kev tswj kom zoo viscosity thiab lub neej ntawm cov nplaum nplaum yog qhov tseem ceeb rau kev siv cov nplaum nplaum zoo. Raws li kev paub ntau lawm, tus neeg sawv cev tseem ceeb, ethyl acetate thiab curing tus neeg sawv cev raug kho kom haum rau R tus nqi thiab viscosity, thiab cov nplaum yog dov rau hauv cov nplaum nplaum nrog cov roj hmab cov menyuam tsis siv cov kua nplaum rau hauv zaj duab xis. Cov qauv nplaum raug coj los ntawm lub sijhawm sib txawv rau kev kuaj viscosity. Tsim nyog viscosity, tsim nyog lub neej ntawm cov nplaum disc, thiab kho sai nyob rau hauv qhov kub thiab txias yog cov hom phiaj tseem ceeb raws li cov kuab tshuaj polyurethane nplaum thaum tsim thiab siv.

2.2 Qhov cuam tshuam ntawm kev laus kub ntawm tev lub zog Cov txheej txheem kev laus yog qhov tseem ceeb tshaj plaws, siv sijhawm ntev, lub zog siv zog thiab qhov chaw-intensive txheej txheem rau kev ntim khoom yooj yim. Nws tsis tsuas yog cuam tshuam rau tus nqi ntawm cov khoom, tab sis tseem ceeb tshaj, nws cuam tshuam rau cov tsos thiab kev sib koom ua ke ntawm cov khoom sib xyaw ua ke. Ntsib nrog tsoomfwv cov hom phiaj ntawm "cov pa roj carbon monoxide" thiab "carbon neutrality" thiab kev sib tw ua lag luam hnyav, kev laus qis thiab kev kho sai yog txoj hauv kev zoo kom ua tiav kev siv hluav taws xob tsawg, kev tsim ntsuab thiab kev tsim khoom zoo.

PET / AL / PE zaj duab xis yog hnub nyoog ntawm chav tsev kub thiab ntawm 40, 50, thiab 60 ℃. Nyob rau hauv chav tsev kub, lub tev lub zog ntawm lub puab txheej AL / PE composite qauv tseem ruaj khov tom qab aging rau 12 h, thiab cov curing twb yeej tiav lawm; Nyob rau hauv chav tsev kub, lub tev lub zog ntawm txheej txheej PET / AL high-barrier composite qauv tseem nyob ruaj khov tom qab kev laus rau 12 h, qhia tias cov khoom siv zaj duab xis siab yuav cuam tshuam rau kev kho ntawm polyurethane nplaum; Muab piv rau qhov kub thiab txias ntawm 40, 50, thiab 60 ℃, tsis muaj qhov sib txawv ntawm qhov kho tus nqi.

Piv nrog rau cov ntsiab lus hnyav-raws li polyurethane adhesives nyob rau hauv lub lag luam tam sim no, lub sij hawm kub-txias feem ntau yog 48 teev lossis ntev dua. Cov nplaum polyurethane hauv qhov kev tshawb fawb no tuaj yeem ua tiav qhov kho ntawm cov txheej txheem siab-barrier hauv 12 teev ntawm chav tsev kub. Cov nplaum tsim muaj kev ua haujlwm ntawm kev kho sai. Kev taw qhia ntawm homemade hyperbranched polymers thiab multifunctional isocyanates nyob rau hauv cov nplaum, tsis hais cov txheej txheem txheej txheej los yog cov txheej txheem sab hauv, lub tev lub zog nyob rau hauv chav tsev kub tsis ntau txawv ntawm tev lub zog nyob rau hauv high-temperature aging tej yam kev mob, qhia tau hais tias cov tsim adhesive tsis tau tsuas yog muaj kev ua hauj lwm ntawm ceev ceev curing, tab sis kuj muaj peev xwm ntawm curing.

2.3 Cov txiaj ntsig ntawm kev laus ntawm cov khoom siv hluav taws xob thaum tshav kub kub sealing cov yam ntxwv ntawm cov khoom siv thiab cov khoom siv hluav taws xob tiag tiag cuam tshuam los ntawm ntau yam, xws li cov khoom siv hluav taws xob, lub cev thiab tshuaj lom neeg kev ua haujlwm ntawm cov khoom nws tus kheej, lub sij hawm thaum tshav kub kub sealing, kub seal siab thiab kub seal kub, thiab lwm yam.

Thaum cov zaj duab xis sib xyaw tsuas yog tawm ntawm lub tshuab, lub zog ntawm lub tshav kub sealing kuj qis, tsuas yog 17 N / (15 mm). Lub sijhawm no, cov nplaum tau pib ua kom khov thiab tsis tuaj yeem muab kev sib txuas kom txaus. Lub zog kuaj lub sij hawm no yog lub tshav kub foob lub zog ntawm PE zaj duab xis; raws li lub sij hawm aging nce, lub tshav kub foob lub zog nce sharply. Lub tshav kub foob lub zog tom qab kev laus rau 12 teev yog qhov zoo ib yam li tom qab 24 thiab 48 teev, qhia tias qhov kev kho yog qhov pib ua tiav hauv 12 teev, muab kev sib txuas txaus rau cov yeeb yaj kiab sib txawv, ua rau muaj zog ntxiv rau cov cua sov. Los ntawm qhov kev hloov pauv ntawm cov cua sov foob lub zog ntawm qhov sib txawv ntawm qhov kub thiab txias, nws tuaj yeem pom tau tias nyob rau hauv tib lub sijhawm laus, tsis muaj qhov sib txawv ntawm qhov kub thiab txias lub zog ntawm chav tsev kub thiab 40, 50, thiab 60 ℃. Kev laus ntawm chav tsev kub tuaj yeem ua tiav cov txiaj ntsig ntawm qhov kub thiab txias. Cov qauv ntim yooj yim sib xyaw nrog cov nplaum tsim no muaj lub zog zoo thaum tshav kub kub sealing nyob rau hauv qhov kub thiab txias.

2.4 Thermal stability ntawm kho zaj duab xis Thaum lub sij hawm siv cov ntim hloov tau, yuav tsum tau sealing thaum tshav kub kub thiab lub hnab ua. Ntxiv nrog rau qhov thermal stability ntawm cov khoom siv zaj duab xis nws tus kheej, thermal stability ntawm kho polyurethane zaj duab xis txiav txim siab qhov kev ua tau zoo thiab cov tsos ntawm cov khoom ntim khoom tiav. Txoj kev tshawb no siv cov txheej txheem thermal gravimetric tsom xam (TGA) los txheeb xyuas qhov thermal stability ntawm polyurethane zaj duab xis kho.

Cov yeeb yaj kiab polyurethane kho tau muaj ob qhov pom tseeb qhov poob qis ntawm qhov ntsuas kub, sib xws rau cov thermal decomposition ntawm ntu ntu thiab ntu muag. Lub thermal decomposition kub ntawm cov mos mos yog qhov siab, thiab thermal poob qis pib tshwm sim ntawm 264 ° C. Ntawm qhov ntsuas kub no, nws tuaj yeem ua tau raws li qhov xav tau ntawm qhov kub thiab txias ntawm cov khoom ntim tam sim no thaum tshav kub kub sealing txheej txheem, thiab tuaj yeem ua tau raws li qhov xav tau ntawm qhov kub thiab txias ntawm kev tsim cov ntim tsis siv neeg los yog txhaws, kev thauj mus los ntev lub thawv, thiab cov txheej txheem siv; Lub thermal decomposition kub ntawm qhov nyuaj ntu yog siab dua, ncav cuag 347 ° C. Tus tsim high-temperature curing-free nplaum muaj zoo thermal stability. AC-13 asphalt sib tov nrog steel slag nce 2.1%.

3) Thaum cov ntsiab lus steel slag nce mus txog 100%, uas yog, thaum ib qho me me ntawm 4.75 txog 9.5 hli hloov tag nrho cov limestone, qhov seem ruaj khov tus nqi ntawm asphalt sib tov yog 85.6%, uas yog 0.5% siab dua li ntawm AC-13 asphalt sib tov yam tsis muaj steel slag; qhov sib faib lub zog piv yog 80.8%, uas yog 0.5% siab dua li ntawm AC-13 asphalt sib tov yam tsis muaj steel slag. Qhov sib ntxiv ntawm qhov tsim nyog ntawm cov hlau slag tuaj yeem txhim kho qhov seem ruaj khov thiab sib cais lub zog ntawm AC-13 steel slag asphalt sib tov, thiab tuaj yeem txhim kho cov dej ruaj khov ntawm asphalt sib tov.

1) Raws li kev siv ib txwm muaj, qhov pib viscosity ntawm cov kuab tshuaj polyurethane nplaum npaj los ntawm kev qhia cov khoom siv hauv tsev thiab cov khoom siv ntau yam polyisocyanates yog nyob ib ncig ntawm 1500mPa·s, uas muaj viscosity zoo; Lub neej ntawm cov nplaum disc ncav cuag 60 min, uas tuaj yeem ua tau raws li lub sijhawm ua haujlwm ntawm cov tuam txhab ntim khoom lag luam hloov pauv hauv cov txheej txheem tsim khoom.

2) Nws tuaj yeem pom los ntawm tev lub zog thiab lub zog hluav taws xob lub zog uas cov nplaum npaj tuaj yeem kho tau sai ntawm chav tsev kub. Tsis muaj qhov sib txawv loj hauv kev kho ceev ntawm chav tsev kub thiab ntawm 40, 50, thiab 60 ℃, thiab tsis muaj qhov sib txawv loj hauv kev sib khi lub zog. Cov nplaum no tuaj yeem kho tau tag nrho yam tsis muaj qhov kub thiab txias thiab tuaj yeem kho tau sai.

3) TGA tsom xam qhia tau hais tias cov nplaum nplaum muaj qhov zoo thermal stability thiab tuaj yeem ua tau raws li qhov kub thiab txias thaum lub sijhawm tsim khoom, kev thauj mus los thiab siv.