Lub luag haujlwm tseem ceeb ntawm Crosslinking tus neeg sawv cev TAIC hauv Adhesives
1. Ua kom crosslinking ceev kom txhim kho cov khoom siv kho tshuab
Cov khoom siv ntawm cov nplaum (xws li lub zog tensile, shear lub zog, thiab hardness) feem ntau nyob ntawm tus qauv crosslinking system. Qhov ntau ob daim ntawv cog lus hauv cov kua TAIC tuaj yeem dhau los ua copolymerization lossis crosslinking cov tshuaj tiv thaiv nrog cov resins hauv cov nplaum (xws li, epoxy resins, acrylates, polyurethanes), ua ib qho peb -cov qauv sib txuas.
- Txo cov saw molecular zawv zawg: Cov qauv network txwv tsis pub txav ntawm cov khoom siv polymer molecular chains, ua kom muaj zog tensile thiab shear zog ntawm cov nplaum. Piv txwv li, ntxiv 10% -15% kua TAIC rau epoxy adhesives tuaj yeem ua rau lawv lub zog shear los ntawm 25% -30%;
- Txhim kho qhov cuam tshuam tsis zoo: Cov kev sib txuas sib txuas nruab nrab tuaj yeem sib npaug rigidity thiab toughness, tiv thaiv cov nplaum tsis ua hauj lwm vim yog cov brittleness ntau dhau, tshwj xeeb tshaj yog tsim rau cov khoom siv nplaum lossis seismic-cov nplaum nplaum;
- Ua kom tawv tawv: Tus ntoo khaub lig-txheej txheem txuas ua kom pom qhov ua tau zoo dua qub, txo qhov deformation lossis nkag mus rau lub sijhawm siv ntev thiab txuas ntxiv cov nplaum rau lub neej.
2. Txhim kho thermal stability
Lub aromatic heterocyclic qauv ntawm lub nplhaib isocyanuric acid endows TAIC nrog zoo thermal stability. Thaum TAIC koom nrog hauv kev sib txuas, cov iav hloov pauv kub (Tg) thiab thermal decomposition kub ntawm cov nplaum yog txhim khu kev qha.
Ntxiv cov kua TAIC rau acrylate adhesives tuaj yeem nce Tg los ntawm 15-30 ° C thiab nce qhov kub thiab txias ntawm 80 ° C mus rau saum 150 ° C;
Rau cov nplaum nyob rau hauv siab - qhov kub thiab txias (xws li automotive engine Cheebtsam thiab cov khoom siv hluav taws xob encapsulation), kev taw qhia ntawm TAIC ua kom ruaj khov kev sib raug zoo ntawm qhov kub siab tshaj 180 ° C, tiv thaiv kev kub siab - tsis ua hauj lwm.
3. Txhim kho tshuaj tiv thaiv
Tus ntoo khaub lig- txuas peb- cov qauv sib txuas sib txuas tuaj yeem thaiv kev nkag mus ntawm cov kuab tshuaj, kua qaub, alkalis, thiab lwm yam xov xwm
- Kev tiv thaiv rau cov kuab tshuaj: Hauv cov xwm txheej cuam tshuam nrog cov roj cav, roj av, lossis cov kuab tshuaj organic (xws li kev sib koom ua ke hauv tsheb), cov ntawv nplaum uas muaj TAIC tuaj yeem tiv taus qhov nruab nrab yaig thiab tuav lub zog sib txuas;
- Corrosion resistance: Nyob rau hauv cov av ntub los yog acidic / alkaline ib puag ncig (xws li sab nrauv phab ntsa sealants), TAIC- hloov cov nplaum tuaj yeem txo qhov nkag mus ntawm cov dej los yog cov kua qaub / alkali ions, yog li ua rau tus nqi degradation qeeb.
4. Optimizing Bonding Performance thiab Applicability
TAIC tuaj yeem txhim kho qhov adhesion ntawm adhesives nyuaj rau - rau - cov ntaub ntawv cog lus
Rau saum npoo - cov ntaub ntawv tsis zoo xws li polyolefins (PE, PP) thiab fluoroplastics, ob daim ntawv cog lus ntawm TAIC tuaj yeem cuam tshuam nrog cov pab pawg ua haujlwm ntawm cov khoom siv saum npoo av (xws li, hydroxyl pawg tom qab kho ntshav plasma) los yog tsim ib qho kev sib txuas sib txuas, yog li ua kom muaj zog ntawm lub ntsej muag adhesion;
Hauv UV-cov nplaum uas kho tau, TAIC ua haujlwm raws li kev ua kom nquag plias, tsis yog tsuas yog txo cov viscosity ntawm lub cev tab sis kuj koom nrog cov tshuaj tiv thaiv photopolymerization. Qhov no txhim kho tus nqi curing thiab℃ntawm kev kho, thaum txhim kho adhesion rau substrates xws li hlau thiab iav.
5. Kho cov khoom kho
TAIC tuaj yeem txhim kho cov txheej txheem kho ntawm cov nplaum
- Shorten curing lub sij hawm: Nws reactivity siab accelerates cov tshuaj tiv thaiv ntawm resin thiab curing agent. Piv txwv li, hauv thermosetting adhesives, ntxiv TAIC tuaj yeem txo lub sijhawm kho ntawm 60 feeb mus rau 30 feeb;
- Kev kho kub qis dua: Hauv qee lub tshuab nplaum, TAIC tuaj yeem ua tus txheej txheem sib txuas, txo qhov kub ntawm 10-20 ° C, yog li txuag hluav taws xob thiab txo qis thermal puas rau lub substrate;
- Txhim kho curing uniformity: Cov ntaub ntawv ua kua ntawm TAIC nthuav tawm zoo heev dispersibility, ua kom cov ntoo khaub lig zoo tib yam -txuas cov kev cuam tshuam thoob plaws hauv lub cev thiab tiv thaiv hauv cheeb tsam hauv qab - kho lossis dhau - kho.
Application Scenarios of TAIC
TAIC yog siv dav hauv ntau yam -cov nplaum ua haujlwm
Structure Adhesive: Bonding rau automotive lub cev qauv thiab sib dhos ntawm aerospace Cheebtsam;
- Electronic adhesives: PCB board encapsulation, nti fixation;
- Sealant: Siv rau kev sib khi lub tsev ntaub thaiv phab ntsa thiab cov yeeb nkab txuas;
- Siab-sensitive nplaum: Siab-kub- tiv taus siab-sensitive daim kab xev, daim kab xev kho mob.
Crosslinking tus neeg saib xyuas TAIC, raws li tus neeg saib xyuas kev sib txuas ua tau zoo thiab kev hloov kho ntxiv, txhim kho cov kev ua tau zoo ntawm cov nplaum los ntawm kev txhawb nqa cov qauv crosslinked hla ntau qhov ntev, suav nrog cov khoom siv hluav taws xob, hluav taws xob tiv thaiv, tshuaj lom neeg, thiab kev sib txuas ntau yam. Nws cov ntaub ntawv ua kua zoo (yooj yim dispersion, yooj yim tuav) ntxiv nthuav nws daim ntawv thov scenarios, ua rau nws yog ib qho ntawm cov ntaub ntawv tseem ceeb rau kev ua tau zoo hauv kev lag luam nplaum.