ʻO ka mortar insulation particle EPS kahi mea insulation māmā i hana ʻia ma ke kāwili ʻana i nā mea hoʻopaʻa inorganic, nā mea hoʻopaʻa organik, nā admixtures, nā mea hoʻohui a me nā aggregates māmā i kahi hapa. Ma waena o nā mortar insulation particle EPS i aʻo ʻia a hoʻohana ʻia i kēia manawa, ʻoi aku ka hopena o ka pauka latex redispersible i ka hana o ka mortar, helu no kahi hapa nui o ke kumukūʻai, a ua lilo mau ia i mea nui o ka nānā ʻana. ʻO ka hana hoʻopaʻa ʻana o ka ʻōnaehana insulation paia waho o ka mortar insulation particle EPS mai ka mea hoʻopaʻa polymer, ka mea i haku nui ʻia me nā vinyl acetate/ethylene copolymers. Hiki i ka hoʻomaloʻo ʻana o kēia ʻano emulsion polymer ke hana i ka pauka latex redispersible. Ua lilo ka pauka latex redispersible i mea hoʻomohala i ke kūkulu ʻana ma muli o kona hoʻomākaukau pololei ʻana, ka lawe maʻalahi a me ka mālama maʻalahi. ʻO ka hana o ka mortar insulation particle EPS e hilinaʻi nui ʻia i ke ʻano a me ka nui o ka polymer i hoʻohana ʻia. ʻO ka pauka Ethylene-vinyl acetate (EVA) me ka nui o ka ethylene a me ka waiwai Tg haʻahaʻa (mahana hoʻololi aniani) he hana maikaʻi loa i ka ikaika hopena, ka ikaika hoʻopaʻa a me ke kūpaʻa wai.
He keʻokeʻo ka pauka polymer hiki ke hoʻoheheʻe hou ʻia, he wai maikaʻi, he nui like ka nui o nā ʻāpana ma hope o ka hoʻoheheʻe hou ʻana, a he maikaʻi ka hoʻoheheʻe ʻana. Ma hope o ka hui ʻana me ka wai, hiki i nā ʻāpana pauka latex ke hoʻi i ko lākou kūlana emulsion mua a mālama i nā ʻano a me nā hana ma ke ʻano he mea hoʻopaʻa organik. Hoʻomalu ʻia ke kuleana o ka pauka polymer hiki ke hoʻoheheʻe hou ʻia i loko o ka mortar insulation thermal e ʻelua mau kaʻina hana: ka hydration sima a me ka hoʻokumu ʻana i ka ʻiliʻili pauka polymer. Hoʻopau ʻia ke kaʻina hana hoʻokumu ʻōnaehana hui o ka hydration sima a me ka hoʻokumu ʻana i ka ʻiliʻili pauka polymer e nā ʻanuʻu ʻehā:
(1) Ke hui ʻia ka pauka latex me ka sima sima, ua hoʻopuehu like ʻia nā ʻāpana polymer maikaʻi i hoʻopuehu ʻia i loko o ka slurry.
(2) Hoʻokumu mālie ʻia ka gel sima i loko o ka polymer/cement paste ma o ka hydration o ka sima, ua hoʻopiha ʻia ka pae wai me ka calcium hydroxide i hoʻokumu ʻia i ka wā o ke kaʻina hydration, a ua waiho ʻia nā ʻāpana polymer ma kahi ʻāpana o ka ʻili o ka hui ʻāpana sima gel/sima i hoʻomaʻū ʻole ʻia.
(3) I ka ulu ʻana o ke ʻano o ka gel sima, ua pau ka wai a ua hoʻopaʻa mālie ʻia nā ʻāpana polymer i loko o nā capillaries. I ka hoʻomaʻū hou ʻana o ka sima, ua emi ka wai i loko o nā capillaries a ua hōʻiliʻili nā ʻāpana polymer ma luna o ka hui ʻana o ka gel sima/ʻāpana sima i hoʻomaʻū ʻole ʻia a me nā ʻāpana māmā, e hana ana i kahi papa hoʻomau a paʻa. I kēia manawa, ua piha nā pores nui me nā ʻāpana polymer pipili a hoʻopili ponoʻī paha.
(4) Ma lalo o ka hana o ka hydration sima, ka omo ʻana o ke kumu a me ka mahu ʻana o ka ʻili, ua hoʻemi hou ʻia ka nui o ka makū, a ua hoʻopaʻa paʻa ʻia nā ʻāpana polymer ma luna o ka cement hydrate aggregate i loko o kahi kiʻiʻoniʻoni hoʻomau, e hoʻopaʻa ana i nā huahana hydration e hana i kahi ʻano pūnaewele piha, a ua hoʻopili ʻia ka pae polymer ma loko o ka slurry hydration sima.
Hoʻokumu ka hydration sima a me ka haku mele ʻana o ka pauka latex i kahi ʻōnaehana hui hou, a hoʻomaikaʻi kā lākou hopena i hui pū ʻia a hoʻoikaika i ka hana o ka mortar insulation thermal.
Ka hopena o ka hoʻohui ʻana o ka pauka polymer i ka ikaika o ka mortar insulation thermal
ʻO ka membrane mesh polymer palupalu a palupalu loa i hana ʻia e ka pauka latex e hoʻomaikaʻi nui i ka hana o ka mortar insulation thermal, ʻoi aku ka hoʻomaikaʻi ʻia o ka ikaika tensile. Ke hoʻopili ʻia kahi ikaika o waho, e hoʻopau ʻia a lohi paha ka hanana o nā micro-cracks ma muli o ka hoʻomaikaʻi ʻana o ka cohesion holoʻokoʻa o ka mortar a me ka elasticity o ka polymer.
Hoʻonui ka ikaika tensile o ka mortar insulation thermal me ka hoʻonui ʻia o ka pauka polymer; emi ka ikaika flexural a me ka ikaika compressive i kekahi ʻano me ka hoʻonui ʻia o ka pauka latex, akā hiki nō ke hoʻokō i nā koi o ka hoʻonaninani waho o ka paia. He liʻiliʻi ka flexure compression, e hōʻike ana he maikaʻi ka maʻalahi o ka mortar insulation thermal a me ka hana deformation.
ʻO nā kumu nui e hoʻomaikaʻi ai ka pauka polymer i ka ikaika tensile: i ka wā o ke kaʻina hana coagulation a me ka paʻakikī o ka mortar, e gel ka polymer a hana i kahi kiʻiʻoniʻoni ma ka ʻāpana hoʻololi ma waena o nā ʻāpana EPS a me ka paʻi sima, e hana ana i ka pilina ma waena o nā mea ʻelua i ʻoi aku ka paʻa a me ka ikaika; hoʻopuehu ʻia kahi ʻāpana o ka polymer i loko o ka paʻi sima a hoʻopaʻa ʻia i loko o kahi kiʻiʻoniʻoni ma luna o ka cement hydrate gel e hana i kahi pūnaewele polymer. Hoʻomaikaʻi kēia pūnaewele polymer modulus elastic haʻahaʻa i ka paʻakikī o ka sima paʻakikī; hiki i kekahi mau hui polar i loko o nā mole polymer ke hana pū me nā huahana hydration sima e hana i nā hopena bridging kūikawā, no laila e hoʻomaikaʻi ana i ke ʻano kino o nā huahana hydration sima a hoʻomaha i ke kaumaha kūloko, no laila e hōʻemi ana i ka hana ʻana o nā microcracks i loko o ka paʻi sima.
Ka hopena o ka nui o ka pauka polymer redispersible ma ka hana hana o ka mortar insulation thermal EPS
Me ka hoʻonui ʻia ʻana o ka nui o ka pauka latex, ua hoʻomaikaʻi nui ʻia ka paʻa ʻana a me ka paʻa ʻana o ka wai, a ua hoʻomaikaʻi ʻia ka hana hana. Ke hiki ka nui i ka 2.5%, hiki iā ia ke hoʻokō piha i nā pono kūkulu. Inā nui loa ka nui, ua kiʻekiʻe loa ka mānoanoa o ka mortar insulation thermal EPS a ua haʻahaʻa ka wai, ʻaʻole ia he mea kūpono i ke kūkulu ʻana, a piʻi ke kumukūʻai o ka mortar.
ʻO ke kumu e hoʻonui ai ka pauka polymer i ka hana hana o ka mortar, ʻo ia ka pauka polymer he polymer molekala kiʻekiʻe me nā hui polar. Ke hui pū ʻia ka pauka polymer me nā ʻāpana EPS, e launa pū nā ʻāpana non-polar i loko o ke kaulahao nui o ka pauka polymer me nā ʻāpana EPS. Hana ʻia ka adsorption kino ma ka ʻili non-polar o EPS. Kuhi ʻia nā hui polar i loko o ka polymer i waho ma luna o ka ʻili o nā ʻāpana EPS, e hoʻololi ana i nā ʻāpana EPS mai ka hydrophobic a i ka hydrophilic. Ma muli o ka hopena hoʻololi o ka pauka latex ma luna o ka ʻili o nā ʻāpana EPS, ua hoʻoponopono ʻia ka pilikia e maʻalahi ka hōʻike ʻana o nā ʻāpana EPS i ka wai. ʻO ka pilikia o ka lana ʻana a me ka papa mortar nui. Ke hoʻohui ʻia a hui pū ʻia ka sima i kēia manawa, ʻo nā hui polar i hoʻopili ʻia ma luna o ka ʻili o nā ʻāpana EPS e launa pū me ka sima a hui pū ʻia, no laila e hoʻomaikaʻi nui ana i ka hana o ka mortar insulation EPS. Hōʻike ʻia kēia ma ka ʻoiaʻiʻo ua maʻalahi ka pulu ʻana o nā ʻāpana EPS e ka slurry sima, a ua hoʻomaikaʻi nui ʻia ka ikaika hoʻopaʻa ma waena o nā mea ʻelua.
ʻO ka pauka polymer redispersible kahi ʻāpana koʻikoʻi o ka slurry insulation particle EPS hana kiʻekiʻe. ʻO kāna ʻano hana, ʻo ia ka hōʻuluʻulu ʻana o nā ʻāpana polymer i loko o ka ʻōnaehana i loko o kahi kiʻiʻoniʻoni hoʻomau, e hoʻopaʻa ana i nā huahana hydration sima e hana i kahi ʻano pūnaewele piha a hui pū me nā ʻāpana EPS. ʻO ka ʻōnaehana hui o ka pauka polymer redispersible a me nā mea hoʻopaʻa ʻē aʻe he hopena elastic palupalu maikaʻi, kahi e hoʻomaikaʻi nui ai i ka ikaika tensile hoʻopaʻa a me ka hana kūkulu o ka mortar insulation particle EPS.
Ka manawa hoʻouna: Dec-30-2024