ʻO ka ʻokoʻa ma waena o ka Polyurethane ma ka wai a me ka Polyurethane ma ka ʻaila
ʻO ka uhi wai polyurethane i hoʻopaʻa ʻia i ka wai he mea hoʻopili maikaʻi a me ka impermeability. Loaʻa iā ia ka hoʻopili maikaʻi ʻana i nā substrate i hoʻokumu ʻia i ka sima e like me ke kaila a me ka pōhaku a me nā huahana metala. Loaʻa i ka huahana nā waiwai kemika paʻa a hiki ke kū i ka ʻike lōʻihi i ka lā. Loaʻa iā ia nā hiʻohiʻona o ka elasticity maikaʻi a me ka elongation nui.
Nā hiʻohiʻona hana huahana
1. Keʻano: Pono ka huahana mai nā lumps ma hope o ka hoʻouluʻana a ma kahi kūlana kūlike.
2. Loaʻa iā ia ka ikaika tensile kiʻekiʻe, ka elongation kiʻekiʻe, ka elasticity maikaʻi, ka hana maikaʻi i nā mahana kiʻekiʻe a me nā haʻahaʻa haʻahaʻa, a me ka hoʻololi maikaʻi ʻana i ka contraction, cracking, and deformation of the substrate.
3. He maikaʻi kona hoʻopili ʻana, ʻaʻole koi ʻia ka lāʻau lapaʻau ma luna o nā substrate like ʻole i kūpono i nā koi.
4. Hoʻomaloʻo ka uhi a hana i kahi kiʻiʻoniʻoni ma hope o ka wai-kūpaʻa, corrosion-resistant, mold-resistant, a me ka luhi.
5. Maikaʻi kāna hana kaiapuni, no ka mea, ʻaʻohe benzene a i ʻole nā ʻāpana tar lanahu, a ʻaʻohe mea hoʻoheheʻe e koi ʻia i ka wā o ke kūkulu ʻana.
6. He mea hoʻohana hoʻokahi, hoʻohana i ke anu i maʻalahi e hoʻohana a hoʻohana.
Ka laulā noi o ka huahana
1. He kūpono no nā keʻena ma lalo o ka honua, nā wahi kaʻa kaʻa ma lalo o ka honua, ke kaʻaahi hāmama a me nā tunnels
2. Nā lumi kuke, nā lumi ʻauʻau, nā papa papahele, nā balconies, nā hale i ʻike ʻole ʻia.
3. ʻO ka hoʻoheheʻe ʻana i ka wai a me ka wai ʻole o nā kihi, nā hui a me nā kikoʻī maikaʻi ʻē aʻe, a me ka hoʻopaʻa ʻana i nā hui wai.
4. ʻO ka pale wai no nā loko ʻauʻau, nā punawai hana, nā pahu wai, a me nā ala wai.
5. ʻO ka pale wai no nā wahi kaʻa a me nā kaupaku.
ʻO ka uhi wai polyurethane i hoʻopaʻa ʻia i ka aila he molekala kiʻekiʻe e hoʻomaloʻo a paʻa i ka ʻili. Hana ʻia ia me nā isocyanates a me nā polyols e like me nā mea nui, me nā mea kōkua like ʻole e like me ka hui ʻana i nā mea paʻakikī paʻakikī a me nā plasticizer, a ua hana ʻia e kahi kaʻina hana kūikawā o ka dehydration kiʻekiʻe a me ka hopena polymerization. Ke hoʻohana ʻia, ua hoʻopili ʻia i ka substrate wai, a ua hoʻokumu ʻia kahi kiʻiʻoniʻoni polyurethane paʻakikī, ʻoluʻolu a paʻa ʻole ma ka ʻili o ka substrate e ka hopena kemika ma waena o ka hui hope -NCO o ka polyurethane prepolymer a me ka wai i ka lewa.
Nā hiʻohiʻona hana huahana
1. ʻIke: ʻO ka huahana he kino viscous like ʻole me ka gel a me nā puʻupuʻu.
2. Hoʻokahi-hui, mākaukau e hoʻohana ma ka pūnaewele, hana anuanu, maʻalahi e hoʻohana, a ʻaʻole koʻikoʻi ka koi no ka maʻamau o ka substrate.
3. Hoʻopili ikaika: ʻO ka hoʻopili maikaʻi ʻana i ke kaʻa, ka momi, ka seramika, ka plaster, ka lāʻau, a me nā mea ʻē aʻe o ka hale kūkulu hale, hiki ke hoʻololi maikaʻi i ka shrinkage, ka haki ʻana a me ka deformation o ka substrate.
4. ʻO ke kiʻiʻoniʻoni me ka ʻole o nā humu: ʻO ka hoʻopili maikaʻi ʻana, ʻaʻohe pono e hoʻopili i ka primer ma nā ʻano substrate e kūpono i nā koi.
5. ʻO ka ikaika tensile kiʻekiʻe o ka kiʻiʻoniʻoni, ka nui o ka elongation nui, ka elasticity maikaʻi, ka hoʻololi maikaʻi ʻana i ka shrinkage a me ka deformation o ka substrate.
6. Ke kū'ē kemika, ka ha'aha'a ha'aha'a ha'aha'a, ka 'elemakule kū'ē, mold kū'ē, maika'i wai hana. Ka laulā noi o ka huahana
Hiki ke hoʻohana ʻia ka ʻaila polyurethane wai no ka hana ʻana i ka wai o nā hale hou a me nā hale kahiko, nā hale, nā basements, nā lumi ʻauʻau, nā papahana pale kīwila, a me nā mea ʻē aʻe.
ʻO ka ʻokoʻa ma waena o ka polyurethane kumu ʻaila a me ka polyurethane kumu wai:
ʻO ka polyurethane i hoʻokumu ʻia i ka aila he ʻoi aku ka paʻa paʻa ma mua o ka polyurethane i hoʻokumu ʻia i ka wai, akā ua hana ʻia me ka isocyanate, polyether, a me nā mea kōkua like ʻole e like me ka latent latent curing agent a me plasticizers, i hoʻomākaukau ʻia e nā kaʻina hana kūikawā i ka wela kiʻekiʻe, e like me ka wehe ʻana i ka wai a ka hopena polymerization. ʻOi aku ka nui o ka pollution, ke hoʻohālikelike ʻia me ka polyurethane i hoʻokumu ʻia i ka wai, kahi huahana ʻōmaʻomaʻo a me ke kaiapuni me ka ʻole o ka pollution. He kūpono ia no ka hoʻohana ʻana i loko, e like me nā lumi kuke a me nā lumi lumi.
Ka manawa hoʻouna: Mei-29-2024