ʻO ka ʻokoʻa ma waena o ka Polyurethane i hoʻokumu ʻia i ka wai a me ka Polyurethane i hoʻokumu ʻia i ka ʻaila
ʻO ka uhi wai ʻole polyurethane wai-wai he mea pale wai polymer elastic kiʻekiʻe-molecular aloha i ke kaiapuni me ka hoʻopili maikaʻi a me ka impermeability. Loaʻa iā ia ka hoʻopili maikaʻi ʻana i nā substrates sima e like me ka sima a me nā pōhaku a me nā huahana metala. Loaʻa i ka huahana nā waiwai kemika paʻa a hiki ke kū i ka hōʻike lōʻihi i ka lā. Loaʻa iā ia nā ʻano o ka elasticity maikaʻi a me ka elongation nui.
Nā Hiʻohiʻona Hana Huahana
1. ʻAno: Pono e kaʻawale ka huahana mai nā puʻupuʻu ma hope o ka hoʻoulu ʻana a ma ke ʻano like.
2. Loaʻa iā ia ka ikaika tensile kiʻekiʻe, elongation kiʻekiʻe, elasticity maikaʻi, hana maikaʻi i nā mahana kiʻekiʻe a me nā haʻahaʻa, a me ka hoʻololi maikaʻi i ka ʻaelike, ka haki ʻana, a me ka deformation o ka substrate.
3. Maikaʻi kona hoʻopili ʻana, ʻaʻohe pono o ka mālama mua ʻana ma nā ʻano substrates like ʻole e hoʻokō ai i nā koi.
4. Maloʻo ka uhi a hana i kahi ʻili ma hope o ia mea e kūpaʻa ai i ka wai, kūpaʻa i ka pala, kūpaʻa i ka ʻōpala, a kūpaʻa i ka luhi.
5. Maikaʻi kāna hana kaiapuni, ʻoiai ʻaʻohe ona ʻāpana benzene a i ʻole ke kēpau lanahu, a ʻaʻohe mea hoʻoheheʻe hou e pono ai i ka wā o ke kūkulu ʻana.
6. He huahana hoʻokahi ʻāpana ia, i hoʻopili anu ʻia i maʻalahi e hoʻohana a hoʻopili.
Ka laulā o ka noi o ka huahana
1. Kūpono no nā lumi ma lalo o ka honua, nā wahi kaʻa ma lalo o ka honua, ke kaʻaahi hāmama a me nā tunnels
2. Nā lumi kuke, nā lumi ʻauʻau, nā papahele, nā lānai, nā hale i hōʻike ʻole ʻia.
3. Ka pale wai kū pololei a me ka pale wai ʻana o nā kihi, nā hui a me nā kikoʻī maikaʻi ʻē aʻe, a me ke sila ʻana i nā hui pale wai.
4. Ka pale wai no nā loko ʻauʻau, nā pūnāwai hana, nā pahu wai, a me nā kahawai hoʻoinu wai.
5. Ka pale wai no nā wahi kaʻa a me nā hale huinahā.
ʻO ka uhi pale wai polyurethane i hoʻokumu ʻia i ka ʻaila he uhi pale wai molekala kiʻekiʻe e maloʻo a paʻa i ka ʻili. Hana ʻia ia me nā isocyanates a me nā polyols ma ke ʻano he mau mea nui, me nā mea kōkua like ʻole e like me ka hoʻohuihui ʻana i nā mea paʻakikī latent a me nā plasticizers, a hana ʻia e kahi hana kūikawā o ka dehydration wela kiʻekiʻe a me ka hopena polymerization. Ke hoʻohana ʻia, hoʻopili ʻia i ka substrate pale wai, a ua hana ʻia kahi ʻili pale wai polyurethane paʻa, maʻalahi a humuhumu ʻole ma luna o ka ʻili substrate e ka hopena kemika ma waena o ka hui hopena -NCO o ka prepolymer polyurethane a me ka makū i ka lewa.
Nā Hiʻohiʻona Hana Huahana
1. ʻAno: He kino viscous like ka huahana me ka ʻole o ka gel a me nā puʻupuʻu.
2. ʻĀpana hoʻokahi, mākaukau e hoʻohana ma kahi, kūkulu anu, maʻalahi e hoʻohana, a ʻaʻole koʻikoʻi ke koi no ka ʻike wai o ka substrate.
3. Hoʻopili ikaika: Hoʻopili maikaʻi i ka sima, ka mortar, nā keramika, ka plaster, ka lāʻau, a me nā mea kūkulu hale, hiki ke hoʻololi maikaʻi i ka emi ʻana, ka nahā ʻana a me ke ʻano o ka substrate.
4. Kiʻiʻoniʻoni me ka ʻole o nā humuhumu: Hoʻopili maikaʻi, ʻaʻohe pono e hoʻopili i ka primer ma nā ʻano substrates like ʻole e hoʻokō ai i nā koi.
5. ʻO ka ikaika tensile kiʻekiʻe o ke kiʻiʻoniʻoni, ka nui o ka elongation, ka elasticity maikaʻi, ka hoʻololi maikaʻi i ka shrinkage a me ka deformation o ka substrate.
6. Ke kūpaʻa kemika, ke kūpaʻa haʻahaʻa haʻahaʻa, ke kūpaʻa ʻelemakule, ke kūpaʻa ʻōpala, hana wai maikaʻi. Ka laulā noi o ka huahana
Hiki ke hoʻohana ʻia ka uhi pale wai polyurethane i hana ʻia me ka ʻaila no ke kūkulu ʻana i nā hale hou a me nā hale kahiko, nā hale kaupaku, nā hale lua, nā lumi ʻauʻau, nā loko ʻauʻau, nā papahana pale kīwila, a pēlā aku. Hiki ke hoʻohana ʻia no ke kūkulu ʻana i nā paipu metala me ka pale wai.
ʻO ka ʻokoʻa ma waena o ka polyurethane aila a me ka polyurethane wai:
ʻOi aku ka nui o ka paʻa o ka polyurethane aila ma mua o ka polyurethane wai, akā ua hana ʻia ia me ka isocyanate, polyether, a me nā mea kōkua like ʻole e like me ka mea hoʻōla latent i hui pū ʻia a me nā plasticizers, i hoʻomākaukau ʻia e nā kaʻina hana kūikawā ma ke ana wela kiʻekiʻe, e like me ka wehe ʻana o ka wai a me ka hopena polymerization. Loaʻa iā ia kahi kiʻekiʻe o ka haumia, hoʻohālikelike ʻia me ka polyurethane wai, he huahana ʻōmaʻomaʻo a aloha i ke kaiapuni me ka ʻole o ka haumia. He kūpono ia no ka hoʻohana ʻana i loko, e like me nā lumi kuke a me nā lumi ʻauʻau.
Ka manawa hoʻouna: Mei-29-2024