Ma catalyst a polyurethane amathandiza kwambiri pakukweza magwiridwe antchito a thovu lolimba, kuphatikizapo thovu la panel ndi box, chifukwa limawonjezera liwiro la kuchira ndi kufooka. Mwachitsanzo, ma catalyst ochokera ku amine monga MXC-70 amatha kukonza njira yochira ndi mawonekedwe enieni a thovu lomaliza. Tiyeni tifufuze momwe MXC-70 ndi ma amine catalyst ena ofanana nawo amagwirira ntchito m'magwiritsidwe ntchito awa.
Udindo waZothandizira za Polyurethanemu Rigid Foams
Ma thovu olimba amagwiritsidwa ntchito kwambiri m'magwiritsidwe ntchito monga ma insulation panels, ma packaging ndi ma box foam chifukwa cha mphamvu zawo zabwino kwambiri zotenthetsera komanso zamakaniko. Ma thovu amenewa nthawi zambiri amapangidwa ndi reaction pakati pa ma polyol ndi ma isocyanates, momwe chothandizira chimalimbikitsa kupangidwa kwa netiweki ya polyurethane polymer. Makhalidwe a chothandizira amakhudza mwachindunji njira yochiritsira ndi mphamvu zomwe zimachokera ku thovu, monga kuchulukana, kuuma ndi kusweka.
Ma catalyst monga MXC-70 (mankhwala ochokera ku amine) amagwiritsidwa ntchito kwambiri mu njira zolimba za thovu kuti azitha kuwongolera kuchuluka kwa zomwe zimachitika komanso kukonza zinthu zosiyanasiyana zakuthupi. Ntchito ya ma catalyst awa ndikufulumizitsa polymerization ya polyol-isocyanate mixture kuti thovu likwaniritse kulimba komwe likufuna pamene likutsimikizira kuti likulimba bwino kuti lichepetse zolakwika monga kusagwira bwino ntchito kapena mphamvu zosakwanira.
Ubwino waMXC-70mu Rigid Foams
1. Kuwongolera Kowonjezereka kwa Kukonza ndi Kukonza:
MXC-70 ili ndi mphamvu zambiri zoyambitsa zinthu, makamaka mu polyurethane formulations yokhala ndi madzi ambiri. Ikhoza kulimbikitsa bwino carbamate ndi urea reaction, motero imachepetsa nthawi yochira popanda kuwononga kapangidwe ka thovu. Kukwaniritsa zosowa za mafakitale omwe amafunikira kupanga bwino.
Mwa kufulumizitsa njira yophikira, MXC-70 imathandiza kufupikitsa nthawi yopangira thovu la panel ndi box, motero kuwonjezera ntchito. Chothandizirachi chimatsimikizira kuti thovulo likuchira bwino, kuteteza mavuto monga kusaphikira bwino kapena kapangidwe kosagwirizana komwe kungakhudze kulimba kwa chinthu chomaliza.
2. Kapangidwe ka Makina Okonzedwa Bwino ndi Kusweka Kwake:
Kugwiritsa ntchito MXC-70 mu thovu lolimba kumawongolera mphamvu zawo zamakaniko mwa kukonza kapangidwe ka thovu. MXC-70 ndi yothandiza kwambiri pa thovu lomwe limafuna kukhazikika ndi kusinthasintha, monga mapanelo otetezera kutentha ndi zinthu zomangira. Kuphatikiza apo, zimathandizanso kukonza kufooka kwa thovu, komwe ndikofunikira pakugwiritsa ntchito monga thovu la bokosi, komwe zinthuzo zimafunika kupirira kupsinjika kwa makina ndi kupsinjika popanda kusweka msanga.
Ma Catalyst amathandiza bwino kupanga ma network a polima olumikizidwa bwino, kuonetsetsa kuti kapangidwe ka mkati mwa thovu kali kolimba komanso kokhoza kuyamwa mphamvu zogunda popanda kulephera kwakukulu, ndipo kangagwiritsidwe ntchito mu makina opakira ndi oteteza omwe amafunika kupirira kugwiridwa, kunyamulidwa komanso nyengo zachilengedwe.
3. Kapangidwe kake kopanda fungo loipa komanso kopanda utsi:
MXC-70 ndi chothandizira cha amine chopanda fungo labwino chomwe chingagwiritsidwe ntchito pomwe fungo lotsalira lingayambitse mavuto, monga kulongedza kwa ogula kapena mapanelo oteteza mkati. Kuphatikiza apo, sichimatulutsanso mpweya woipa, chikutsatira malamulo okhwima kwambiri azachilengedwe ndi azaumoyo m'madera osiyanasiyana. Kugwiritsa ntchito zothandizila zochepetsa mpweya woipa monga MXC-70 kumathandiza kupanga malo ogwirira ntchito otetezeka komanso chinthu choteteza chilengedwe.
Kugwiritsa Ntchito mu Panel ndi Box Foams
Mapepala a Panel:
MXC-70 ndi yoyenera kugwiritsidwa ntchito m'makina olimba a thovu omwe amafunikira kapangidwe ka maselo kogwirizana komanso kukana kutentha kwambiri, monga kupanga mapanelo oteteza kutentha. Chothandizirachi chimatsimikizira kuti thovu limachira pa liwiro loyenera, ndikupanga netiweki yokhazikika yotsika kwambiri yomwe imapereka kutchinjiriza kutentha kwabwino. Kutha kwake kuwongolera zomwe zimachitika kungachepetsenso kupangika kwa zolakwika monga kukula kosakhazikika kwa maselo kapena kusakwanira kukanikiza, zomwe zingasokoneze mphamvu ya thovu.
Mabokosi a Thovu:
Mu ntchito zopaka, nkhawa yaikulu nthawi zambiri imakhala kuthekera kwa thovu kuyamwa mphamvu zogundana ndikupereka chitetezo cha zinthu zosalimba. Mwa kukonza kufooka kwa thovu, MXC-70 imawongolera kuthekera kwa thovu kusinthasintha pansi pa kupanikizika popanda kuphulika, kuonetsetsa kuti zomwe zili mu phukusili zatetezedwa bwino panthawi yonyamula. Kuphatikiza apo, MXC-70 imathandizira kupanga thovu lopepuka koma lolimba, khalidwe lofunika kwambiri lomwe limafuna zipangizo zopaka zomwe ndizotsika mtengo komanso zodalirika.
Mapeto
Kugwiritsa ntchito ma amine catalysts monga MXC-70 popanga ma thovu olimba kuli kofala, makamaka m'magwiritsidwe ntchito monga ma insulation board ndi ma box foam. Amafulumizitsa nthawi yothira, amawongolera mphamvu zamakina ndikuwonjezera kusweka, zomwe ndizofunikira pakugwira ntchito bwino komanso kulimba kwa thovu lomaliza. Ndi mphamvu zake zopanda utsi komanso fungo lochepa, MXC-70 ikukwaniritsanso kufunikira kwakukulu kwa zinthu zosawononga chilengedwe komanso zathanzi. Mwa kukonza njira yothira komanso mphamvu zakuthupi za thovu, ma catalysts monga MXC-70 ndi ofunikira popanga ma polyurethane foam apamwamba, ogwira ntchito bwino komanso olimba pantchito zosiyanasiyana zamafakitale.
Nthawi yotumizira: Disembala-03-2024