ʻO ka EPS particle insulation mortar he mea hoʻoheheʻe māmā i hana ʻia e ka hui ʻana i nā mea hoʻopili inorganic, nā mea hoʻopili organik, admixtures, additives a me nā aggregates māmā i kekahi ʻāpana. Ma waena o ka EPS particle insulation mortars i kēia manawa i aʻo ʻia a hoʻohana ʻia, ʻoi aku ka hopena o ka pauka latex redispersible i ka hana o ka mortar, ʻoi aku ka nui o ke kumukūʻai, a ʻo ia ka mea nui o ka nānā. ʻO ka hana hoʻopaʻa ʻana o ka EPS particle insulation mortar exterior wall insulation system no loko mai o ka polymer binder, ka mea nui i haku ʻia me vinyl acetate/ethylene copolymers. ʻO ka hoʻomaloʻo ʻana o kēia ʻano polymer emulsion hiki ke hana i ka pauka latex redispersible. Ua lilo ka pauka latex redispersible i mea ulu 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 i ke ʻano a me ka nui o ka polymer i hoʻohana ʻia. Ethylene-vinyl acetate pauda (EVA) me ke kiʻekiʻe o ka ethylene maʻiʻo a me ka haʻahaʻa Tg (ke aniani hoʻololi wela) waiwai maikaʻi loa i ka ikaika hopena, ka ikaika hoʻopaʻa a me ka pale wai.
He keʻokeʻo ka pauka polymer redispersible, maikaʻi ka wai, loaʻa ka nui o nā ʻāpana like ʻole ma hope o ka hoʻoheheʻe ʻana, a maikaʻi ka dispersibility. 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 hoʻopili organik. ʻO ka hana o ka pauka polymer redispersible i ka mortar insulation thermal e hoʻomalu ʻia e nā kaʻina hana ʻelua: ʻo ka hydration cement a me ka hoʻokumu ʻana i ka kiʻiʻoniʻoni polymer powder. Hoʻopau ʻia ke kaʻina hana hoʻokumu ʻōnaehana o ka hydration cement a me ka hoʻokumu ʻana i ka kiʻiʻoniʻoni polymer powder e nā ʻanuʻu ʻehā:
(1) Ke hui pū ʻia ka pauka latex me ka momi sima, ua hoʻopuehu ʻia nā ʻāpana polymer maikaʻi i hoʻopuehu ʻia i loko o ka slurry.
(2) Hoʻokumu mālie ʻia ka gel Cement i loko o ka polymer/cement paste ma o ka hydration o ka sima, hoʻopiha ʻia ka pae wai me ka calcium hydroxide i hana ʻia i ka wā o ka hydration kaʻina, a waiho ʻia nā ʻāpana polymer ma kahi ʻāpana o ka ʻili cement gel / unhydrated. hui ʻāpana sima.
(3) I ka ulu ʻana o ka hana gel sima, hoʻopau ʻia ka wai a hoʻopaʻa ʻia nā ʻāpana polymer i loko o nā capillaries. I ka hoʻomaʻemaʻe hou ʻana o ka sima, e emi ana ka wai i loko o nā capillaries a hōʻuluʻulu ʻia nā ʻāpana polymer ma luna o ka ʻili o ka sima gel/unhydrated sima ʻāpana ʻāpana a me nā ʻāpana māmā, e hana ana i kahi papa hoʻomau a paʻa paʻa. I kēia manawa, hoʻopiha ʻia nā pores nui me nā ʻāpana polymer sticky a hoʻopili ponoʻī.
(4) Ma lalo o ka hana o ka hydration sima, ka absorption kumu a me ka hoʻoheheʻe ʻana o ka ʻili, ua hoʻemi hou ʻia ka ʻike o ka wai, a ua hoʻopaʻa paʻa ʻia nā ʻāpana polymer ma ka hydrate cement aggregate i loko o kahi kiʻiʻoniʻoni mau, e hoʻopaʻa pū i nā huahana hydration e hana i kahi ʻōnaehana pūnaewele piha. , a ua hoʻopili ʻia ka māhele polymer a puni ka slurry hydration sima.
ʻO ka hydration Cement a me ka latex powder film-forming composition i kahi ʻōnaehana composite hou, a ʻo kā lākou hopena hui e hoʻomaikaʻi a hoʻonui i ka hana o ka mortar insulation thermal.
ʻO ka hopena o ka hoʻohui ʻana o ka pauka polymer i ka ikaika mortar insulation thermal
ʻO ka mesh polymer mesh mesh me ka maʻalahi loa i hoʻokumu ʻia e ka pauka latex e hoʻomaikaʻi nui i ka hana o ka mortar insulation thermal, ʻoi aku ka maikaʻi o ka ikaika tensile. Ke hoʻohana ʻia ka ikaika o waho, e hoʻopau ʻia ka hiki ʻana o nā micro-cracks ma muli o ka hoʻomaikaʻi ʻana o ka hui pū ʻana o ka mortar a me ka elasticity o ka polymer.
Hoʻonui ka ikaika tensile o ka mortar insulation thermal me ka piʻi ʻana o ka ʻike o ka pauka polymer; ke emi nei ka ikaika flexural a me ka ikaika compressive i kekahi ʻano me ka hoʻonui ʻana o ka pauka latex, akā hiki nō ke hoʻokō i nā koi o ka hoʻonaninani o waho. He ʻuʻuku liʻiliʻi ka flexure compression, e hōʻike ana i ka mortar insulation thermal i ka maʻalahi a me ka hana deformation.
ʻO nā kumu nui e hoʻomaikaʻi ai ka pauka polymer i ka ikaika tensile: i ka wā o ka coagulation a me ka paʻakikī o ka mortar, e gel ka polymer a hana i kahi kiʻiʻoniʻoni ma ka wahi hoʻololi ma waena o nā ʻāpana EPS a me ka paʻi sima, e hana ana i ka pilina ma waena o nā mea ʻelua a ʻoi aku ka ikaika; ʻO kahi hapa o ka polymer i hoʻopuehu ʻia i loko o ka paʻi sima a hoʻopaʻa ʻia i kahi kiʻiʻoniʻoni ma ka ʻili o ka cement hydrate gel e hana i kahi pūnaewele polymer. Hoʻomaikaʻi kēia ʻoihana polymer modulus elastic haʻahaʻa i ka paʻakikī o ka sima paʻa; Hiki i kekahi mau pūʻulu polar i loko o nā molekele polymer ke hana kemika me nā huahana hydration cement e hana i nā hopena bridging kūikawā, ma laila e hoʻomaikaʻi ai i ke ʻano kino o nā huahana hydration sima a me ka hoʻohaʻahaʻa ʻana i ke kaumaha o loko, a laila e hōʻemi i ka hana ʻana o nā microcracks i loko o ka paʻi sima.
Ka hopena o ka pauka polymer redispersible i ka hana hana o ka mortar insulation thermal EPS
Me ka hoʻonui ʻana o ka pauka latex, hoʻomaikaʻi maikaʻi ʻia ka cohesion a me ka paʻa ʻana o ka wai, a ʻoi aku ka maikaʻi o ka hana. Ke hiki i ka dosage i 2.5%, hiki iā ia ke hoʻokō piha i nā pono hana. Inā ʻoi aku ka nui o ka dosage, ʻoi aku ka kiʻekiʻe o ka viscosity o EPS thermal insulation mortar a haʻahaʻa ka wai, ʻaʻole kūpono i ke kūkulu ʻana, a piʻi ke kumukūʻai mortar.
ʻO ke kumu e hoʻomaikaʻi ai ka pauka polymer i ka hana hana o ka mortar ʻo ia ka pauka polymer he polymer molecular kiʻekiʻe me nā hui polar. Ke hui pū ʻia ka pauka polymer me nā ʻāpana EPS, e hui pū nā ʻāpana non-polar i ke kaulahao nui o ka pauka polymer me nā ʻāpana EPS. Loaʻa ka adsorption kino ma ka ʻili non-polar o EPS. ʻO nā pūʻulu polar i loko o ka polymer e kuhikuhi ʻia i waho ma ka ʻili o nā ʻāpana EPS, e hoʻololi i nā ʻāpana EPS mai ka hydrophobic a i ka hydrophilic. Ma muli o ka hopena hoʻololi o ka pauka latex ma ka ʻili o nā ʻāpana EPS, ua hoʻopau ʻia ka pilikia e ʻike maʻalahi ai nā ʻāpana EPS i ka wai. ʻO ka pilikia o ka lana ʻana a me ka hoʻomoe nui ʻana. Ke hoʻohui ʻia ka sima a hui pū ʻia i kēia manawa, hoʻopili nā pūʻulu polar ma ka ʻili o nā ʻāpana EPS me ka sima a hui pū ʻia, a laila e hoʻomaikaʻi nui ai i ka hana o ka mortar insulation EPS. Hōʻike ʻia kēia ma ka ʻoiaʻiʻo e pulu maʻalahi nā ʻāpana EPS e ka slurry sima, a ua hoʻomaikaʻi maikaʻi ʻia ka ikaika paʻa ma waena o nā mea ʻelua.
ʻO ka pauka polymer redispersible he mea nui ia o ka slurry insulation particle EPS kiʻekiʻe. ʻO kāna ʻano hana, ʻo ia ka hui ʻana o nā ʻāpana polymer i loko o kahi kiʻiʻoniʻoni hoʻomau, e hoʻopaʻa pū ana i nā huahana hydration cement e hana i kahi hoʻolālā pūnaewele piha a hui pū me nā ʻāpana EPS. ʻO ka ʻōnaehana composite o ka pauka polymer redispersible a me nā mea hoʻopaʻa ʻē aʻe he hopena palupalu palupalu maikaʻi, e hoʻomaikaʻi nui ana i ka ikaika tensile paʻa a me ka hana hana ʻana o ka EPS particle insulation mortar.
Ka manawa hoʻouna: Dec-30-2024