PVC (polyvinyl chloride) gaw, n-gun n rawng ai, manu n law ai, galaw na matu loi ai a majaw, nta gap ai, hka htung, nta arung arai ni, plastic arai ni hta grai lang ma ai. Raitim, bonding PVC gaw, ntsa lam n-gun n rawng ai, arung arai n bung ai, shing nrai, grup yin a majaw, n-gun kya ai bonds, n-gun n rawng ai, shing nrai, n-gun n rawng ai lam ni hpe hkrum sha chye ai. Ndai manghkang ni hpe hparan na matu hpaji masa hku nna PVC glue hparan ladat ni gaw ahkyak dik rai nga ai.
1. PVC Glue hpe lata la ai lam hte htuk manu ai lam
PVC glue a madung ra kadawn ai lam ni gaw ngang kang ai n-gun hte nbung laru hpe hkam sharang lu ai lam ni rai nga ai. Htap htuk ai glue amyu hpe n bung ai jai lang ai lam ni a matu lata ra ai:
Solvent-madung tawn ai PVC glue (chloroform-madung tawn ai glue zawn re ai): PVC ntsa na molecule ni hpe garan nna, chemical matut mahkai lam ni hpe byin shangun ai. Dai gaw ngang kang ai PVC pipe (sh) sheet ni hpe lawan ai hku shingdaw na matu htuk manu ai, raitim, nbung hpe atsawm sha shapraw ya lu ai hte shim lum ai hku galaw lu na matu ahkyak ai.
Acrylate glue: n-gun kaba ai hte n-gun ja ai lam hpe kayau da ai majaw, PVC hpe n bung ai arung arai ni rai nga ai magri hte hpun ni hte matut mahkai na matu htuk manu ai. Shi gaw nbung katsi ai shara (-20℃kaw nna 80℃du hkra ) nga ai.
Epoxy resin adhesive: Hpa majaw nga yang, n-gun kaba ai-load (sh) hka lim ai shara ni a matu, tsi mawan ni hpe grai kaja hkra ninghkap lu ai, raitim, tsi lajang ai aten grau galu ra ai.
Madung hpaji jaw ga: PVC hpe n lang shi yang jasan jaseng ra ai (sau hte nhprang arai ni hpe shaw kau ra ai), ra ai rai yang n-gun ja hkra sand galaw ra ai.
2. Masha law malawng hkrum katut ai manghkang ni hte hparan ladat ni
Weak adhesion (sh) debonding: Ndai lam gaw, ntsa lam hpe n-htuk hkra hkyen lajang ai (sh) n-htuk ai hku n-gun n-jaw ai majaw byin chye ai. Dai hpe grau nna n-gun n rawng ai hte n-gun rawng ai adhesive hpe bang nna hkying hkum 24 tup n-gun n rawng ai hku bang na matu hpaji jaw da ai.
Slow adhesive curing: N-gun n law ai (sh) n-gun law ai gaw, n-gun hpe shayawm ya lu ai. Bonding shara hpe 20℃jan ai shara de htawt na (sh) lawan-hkyet mat ai shingnip (instant shingnip zawn re ai) hpe lang u.
Edge cracking: Ndai lam gaw n bung ai arung arai ni a lapran na thermal expansion hte contraction n bung ai majaw byin pru wa ai re. Stress hpe shayawm na matu, n-gun n rawng ai acrylic adhesive hpe lang na matu (sh) PVC-specific caulk hpe n-gun rawng ai shara ni hta bang na matu hpaji jaw da ai.
3. grup yin hte shimlam hpe grau kaja hkra galaw ai
Htunghking hku lang ai solvent-madung tawn ai n-gun rawng ai n-gun rawng ai n-gun rawng ai n-gun (VOCs) ni lawm ai majaw hkamja lam hpe hkra machyi shangun chye ai. Dai ni na aten na hparan ladat ni gaw, n-gun n law ai hka - hpe madung tawn ai PVC n-gun (sh) UV-mai tsai ai n-gun ni hpe ra sharawng ma ai. Ndai ni gaw ultraviolet nhtoi hku nna lawan ladan mai tsai wa nna, n kaja ai nbung ni hpe shapraw ai lam hpe shayawm ya nna, nta kata (sh) shingbyi shara ni hta lang na matu htuk manu ai.
Daw dan lam
PVC adhesives hpe awng dang hkra jai lang lu na matu, arung arai ni hte htuk manu ai lam, madang masat da ai bungli galaw ai lam, grup yin hpe hkang zing ai lam ni hta madung nga ai. Hpaji masa hku nna n-gun rawng ai n-gun hpe lata la ai, hkrak tup jai lang ai, byin mai ai manghkang ni hpe tau hkrau myit mada ai hku nna, n-gun rawng ai n-gun hpe grai shatsaw ya lu nna, dai arung arai a prat hpe galu kaba shangun lu ai sha n-ga, grup yin hte shim lum lam ra kadawn ai lam ni hpe mung hparan ya lu ai.