Kev lag luam vaj huam sib luag sandwich vam khom cov ntaub ntawv ua haujlwm siab uas muab kev rwb thaiv tsev, tiv thaiv hluav taws thiab kev ruaj khov ntawm cov qauv. Polyurethane catalysts (piv txwv liMXC-5, MXC-8, MXC-41) ua lub luag haujlwm tseem ceeb hauv kev tsim cov ntaub ntawv no, pab kom ua tiav cov tshuaj tiv thaiv sai dua thiab ua haujlwm tau zoo dua hauv cov txheej txheem tsim ua npuas ncauj. Cov ntaub ntawv siv ntau tshaj plaws hauv sandwich core yog cov ntaub ntawv inorganic xws li polyurethane (PUR), polyisocyanurate (PIR), polystyrene, phenolic ua npuas ncauj (PF) thiab pob zeb wool. Daim ntawv no muab kev piav qhia txog cov ntaub ntawv no thiab yuav ua li cas polyurethane catalysts tuaj yeem pab txhawb lawv txoj kev loj hlob thiab kev siv hauv sandwich panels.
Cov Khoom Siv Sau Rau Cov Sandwich Panels
Cov ntaub ntawv siv rau hauv cov cores sandwich vaj huam sib luag tuaj yeem muab faib ua ob pawg tseem ceeb: cov ntaub ntawv ua npuas ncauj thiab cov ntaub ntawv inorganic fiber. Txhua hom ntaub ntawv muaj cov yam ntxwv tshwj xeeb uas ua rau nws haum rau cov ntawv thov tshwj xeeb, nyob ntawm qhov xav tau thermal, structural, thiab hluav taws kub ntawm lub vaj huam sib luag.
Cov Khoom Siv Ua Npuas Ncauj
1. Polyurethane (PUR) thiab Polyisocyanurate (PIR):
Polyurethane (PUR) thiab polyisocyanurate (PIR) yog ob yam khoom siv dav tshaj plaws hauv kev tsim cov sandwich panels. Cov khoom no yog tsim los ntawm cov tshuaj tiv thaiv ntawm polyols thiab isocyanates catalyzed los ntawm cov tshuaj xws li MXC-5,MXC-8, thiab MXC-41. Qhov kev ua haujlwm catalytic ua kom ntseeg tau tias cov ua npuas ncauj nthuav dav, kho thiab sib txuas zoo hauv cov qauv sandwich plate.
- Kev nplaum thiab kev ruaj khov ntawm cov qauv:Ib qho ntawm cov laj thawj tseem ceeb rau kev siv PUR/PIR hauv cov vaj huam sib luag sandwich yog nws cov khoom sib txuas zoo heev. Thaum lub sijhawm ua npuas dej, PUR thiab PIR lo rau cov khoom siv nto xws li hlau lossis txhuas tawv nqaij, yog li ua kom cov qauv ntawm lub vaj huam sib luag zoo dua. Cov yam ntxwv no ua rau cov npuas dej no yog qhov kev xaiv dav rau cov kab laminating, vim tias kev sib txuas muaj zog yog qhov tseem ceeb rau kev ruaj khov.
- Kev Tiv Thaiv Hluav Taws Zoo Dua:Cov tshuaj lom neeg ntawm PUR/PIR ua npuas ncauj tau zoo dua qub ntau xyoo, thiab nws kuj tiv taus hluav taws, uas yog ib qho tseem ceeb rau kev siv hauv tsev uas yuav tsum tau ua raws li cov cai tswjfwm kev nyab xeeb hluav taws. PIR, tshwj xeeb, muaj kev tiv taus hluav taws zoo dua li PUR, ua rau nws yog qhov kev xaiv dav rau cov ntawv thov uas muaj kev pheej hmoo siab.
2. Polystyrene (EPS/XPS):
Polystyrene, suav nrog expanded polystyrene (EPS) thiab extruded polystyrene (XPS), yog lwm yam khoom siv ua npuas ncauj siv rau hauv cov vaj huam sib luag sandwich. Txawm hais tias tsis tshua siv ntau npaum li PUR/PIR, polystyrene muaj cov khoom rwb thaiv tsev zoo heev. Txawm li cas los xij, nws cov khoom nplaum tsis muaj zog npaum li PUR/PIR, yog li nws yuav tsis haum rau cov ntawv thov uas xav tau lub zog siab.
- Kev rwb thaiv tsev kub:Polystyrene muab kev rwb thaiv cua sov zoo heev ntawm tus nqi qis dua piv rau lwm cov ntaub ntawv, ua rau nws yog qhov kev xaiv nrov rau cov haujlwm uas xav tau tus nqi siab. Txawm li cas los xij, nws tsis muaj kev tiv thaiv hluav taws thiab lub zog sib txuas zoo li PUR thiab PIR muab.
3. Ua Npuas Ncauj Phenolic (PF):
Ua npuas phenolic yog qhov tshiab dua piv rau lwm cov khoom siv ua npuas thiab tsis tshua siv rau hauv kev tsim cov vaj huam sib luag sandwich. Txawm li cas los xij, nws muaj ib qho zoo dua: kev tiv taus hluav taws zoo dua. Ua npuas phenolic muaj kev tiv taus hluav taws zoo tshaj plaws ntawm cov khoom siv ua npuas, ua rau nws tsim nyog rau cov ntawv thov uas kev nyab xeeb hluav taws yog qhov tseem ceeb tshaj plaws.
- Kev Tiv Thaiv Hluav Taws:Cov tshuaj lom neeg tshwj xeeb ntawm phenolic ua npuas ncauj ua rau nws tiv taus qhov kub siab dua yam tsis muaj kev cuam tshuam rau kev ua kom zoo ntawm cov qauv. Txawm hais tias nws ua tau zoo heev hauv kev tua hluav taws, phenolic ua npuas ncauj tsis tshua siv dav vim nws tus nqi siab dua thiab muaj tsawg.
Cov Khoom Siv Inorganic Fiber
1. Pob zeb wool:
Rockwool, yog ib yam khoom siv inorganic fiber, siv rau hauv cov sandwich panel cores vim nws zoo heev rau kev tiv thaiv hluav taws thiab kev rwb thaiv suab. Tsis zoo li cov khoom ua npuas ncauj, rockwool tsis kub hnyiab, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv hluav taws.
- Kev rwb thaiv cua sov thiab suab:Rockwool muab kev rwb thaiv cua sov zoo, txawm tias tsis siab npaum li qee cov khoom ua npuas ncauj. Tsis tas li ntawd, nws cov qauv fibrous pab txo cov suab nrov, ua rau nws tsim nyog rau cov ntawv thov uas xav tau kev txo suab nrov.
- Kev Tiv Thaiv Hluav Taws:Qhov zoo tshaj plaws ntawm Rockwool yog nws tsis kub hnyiab. Nws tuaj yeem tiv taus qhov kub siab heev, ua rau nws yog qhov kev xaiv zoo rau cov tsev uas xav tau kev tiv thaiv hluav taws zoo dua.
Lub Luag Haujlwm ntawm Polyurethane Catalysts hauv Sandwich Panel Production
Cov tshuaj polyurethane catalysts xws li MXC-5, MXC-8, thiab MXC-41 yog qhov tseem ceeb rau kev tsim cov khoom siv ua npuas ncauj uas siv rau hauv cov vaj huam sib luag sandwich. Cov tshuaj catalysts no ua kom cov tshuaj sib xyaw ua ke ntawm polyols thiab isocyanates sai dua, ua kom cov npuas ncauj nthuav dav thiab kho tau zoo. Yog tsis muaj cov tshuaj catalysts, cov tshuaj tiv thaiv yuav qeeb thiab tsis tiav, ua rau cov npuas ncauj tsis zoo nrog kev sib txuas thiab kev rwb thaiv tsev tsis zoo.
- Kev Tswj Xyuas Kev Ua Tshwm Sim:Cov tshuaj catalysts tswj qhov ceev ntawm kev tsim ua npuas ncauj, xyuas kom meej tias cov npuas ncauj nthuav dav kom puv tag nrho lub plawv ntawm lub vaj huam sib luag sandwich. Lawv kuj tseem cuam tshuam rau qhov sib npaug ntawm kev tshuab thiab kev sib xyaw ua ke, ua kom zoo dua qhov ceev ntawm cov npuas ncauj thiab cov qauv ntawm lub hlwb.
- Kev Xav Txog Ib puag ncig:Muaj ntau cov tshuaj polyurethane catalysts niaj hnub no uas tsim los txo cov pa phem ntawm cov organic compound (VOC) thiab txhim kho kev nyab xeeb rau ib puag ncig. Cov tshuaj catalysts uas tsis muaj ntxhiab tsw, tsis muaj pa phem, xws li MXC-41, pab txhawb rau kev tsim cov sandwich panels uas zoo rau ib puag ncig.
Xaus lus
Hauv kev tsim cov vaj huam sib luag sandwich, kev xaiv cov khoom siv sau kom raug yog qhov tseem ceeb rau kev ua kom tau raws li qhov yuav tsum tau ua kom sov, kev teeb tsa, thiab kev nyab xeeb hluav taws. Cov ntaub ntawv ua npuas ncauj xws li PUR, PIR, polystyrene, thiab phenolic ua npuas ncauj, nrog rau cov ntaub ntawv inorganic xws li rockwool, txhua tus muaj cov txiaj ntsig tshwj xeeb. Cov tshuaj polyurethane catalysts xws li MXC-5, MXC-8, thiab MXC-41 ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev tsim cov ntaub ntawv ua npuas ncauj ua haujlwm zoo. Cov tshuaj catalysts no ua kom cov tshuaj tiv thaiv uas tsim cov npuas ncauj sai dua, muab kev sib txuas zoo dua, kev rwb thaiv tsev thermal, thiab kev tiv thaiv hluav taws tseem ceeb rau cov ntawv thov kev tsim kho niaj hnub.
Lub sijhawm tshaj tawm: Lub Kaum Hli-24-2024