ʻO ka mea hoʻohaʻahaʻa wai ʻo ia kekahi o nā ala ʻenehana e hōʻemi i ka nui o ka sima, hoʻomaikaʻi i ka helu hoʻohana ʻana i ke koena o nā ʻōpala ʻoihana, a ʻike i ka lōʻihi a me ka hana kiʻekiʻe o ka koneki.ʻO ia kekahi o nā mea koʻikoʻi no ka hoʻomohala ʻana i ke kahua paʻa i ke kahua ʻenehana kiʻekiʻe.A ua lilo ka polycarboxylate type water reducing agent (PC) i ʻano mea hoʻohaʻahaʻa wai maikaʻi me ka hoʻomohala wikiwiki loa a me ka mākeke nui loa ma muli o kona haʻahaʻa haʻahaʻa a me nā hiʻohiʻona palekana.Ke hoʻohālikelike ʻia me nā mea hoʻohui kuʻuna, ua lilo nā admixtures i mea nui o ka noiʻi a me ka hoʻomohala ʻana o ka honua no ka maikaʻi o kā lākou dispersibility a me ka hiki ke paʻa paʻa.
ʻOiai ua ʻike nui ʻia ka wai polycarboxylate e hōʻemi ana i ka admixture maikaʻi a me ka hiki ke mālama i ka haʻahaʻa maikaʻi, akā ma muli o ke ʻano o ka hui ʻana o ka mineral, ka maikaʻi o ka sima, ke ʻano o ka plaster sima a me ka ʻike, admixture hoʻohui nui, a me ke kaʻina hana o ka hui ʻana o ka lākiō, ka wai. He kiʻekiʻe loa kona naʻau, hoʻohana nui ʻia nā huahana i kēia manawa i ka ʻenekinia.
He aha ka Polycarboxylate Series Water Reducing Agent?
ʻO ka polycarboxylate superplasticizer kahi ʻano surfactant i loaʻa i ka carboxylic graft copolymer.ʻO kāna mau molekala he ʻano huila a loaʻa ka hopena steric hindrance kiʻekiʻe.ʻOiai ʻo ke kolu o ka hanauna o ka wai hoʻohaʻahaʻa wai kiʻekiʻe ma hope o ka lignosulfonate maʻamau ka mea hoʻohaʻahaʻa wai maʻamau, naphthalene series aliphatic group, sulfamate a me nā mea hana hoʻohaʻahaʻa wai kiʻekiʻe.
Ma muli o ka maikaʻi o ka hoʻolālā ʻana o ka molecular structure, ʻoi aku ka maikaʻi o ka hoʻohaʻahaʻa ʻana i ka wai, haʻahaʻa ka nui o ka hoʻohui ʻana, hoʻomau i ka maikaʻi, hoʻomaikaʻi i ka maikaʻi, haʻahaʻa ka nui o ka alkali, liʻiliʻi ka mana o ka manawa, a ʻoi aku ka maikaʻi o ka like ʻana o ka cement a maikaʻi ʻole ka pollution. ʻO nā pono ʻē aʻe i manaʻo ʻia ʻo ia ka mea hiki ke hoʻomohala ʻia o nā ʻano mea hoʻemi wai.
ʻO ka polycarboxylate superplasticizer he mea hou kiʻekiʻe-efficiency superplasticizer i hoʻomohala ʻia a hana maikaʻi ʻia ma hope o ka naphthalene, melamine, aliphatic a me ka sulfamate superplasticizer.He haʻahaʻa kona maʻiʻo (maʻiʻo paʻa 0.15% - 0.25%) hiki ke hoʻohua i ka wai kūpono e hōʻemi a hoʻonui i ka hopena, emi ka hopena i ka manawa hoʻonohonoho o ka paʻa a me ka paʻa paʻa ʻana, ʻoi aku ka maikaʻi o ka hoʻololi ʻana i ka cement a me ka hoʻohui ʻana, kahi hopena liʻiliʻi i ka maloʻo. ka emi ʻana o ke kaʻa (ʻaʻole i hoʻonui nui ʻia ka hoʻomaloʻo ʻana), me ka hoʻohana ʻole ʻana i ka formaldehyde i ke kaʻina hana a ʻaʻole e hoʻokuʻu i ka wai ʻona, SO ʻO ka haʻahaʻa haʻahaʻa o 42- a me Cl- ua mahalo ʻia e nā mea noiʻi a me kekahi mau mea hoʻohana mai ka hoomaka ana.
No ke aha e hoʻololi ʻia ai ka Polycarboxylate Superplasticizer?
Hoʻohālikelike ʻia me ka moʻo naphthalene kiʻekiʻe e hoʻemi ana i ka wai, e like me, ʻoiai he poly carboxylic acid water reducing agent i ka hoʻohaʻahaʻa ʻana i ka mālama ʻana i ka wai i ʻike ʻia nā pōmaikaʻi ma nā ʻano o ka pale ʻana i ke kaiapuni, akā aia kekahi mau pilikia ʻenehana i ka noi ʻenehana hana, e like me ka hopena ho'ēmi wai o nā mea maka, ka lakene hui, ka hilinaʻi nui o ka mea hoʻemi wai, ʻoi aku ka maʻalahi o ka hoʻohana ʻana i ka wai, hoʻomākaukau maʻalahi i ka papa hoʻokaʻawale wai nui.ʻO ka hoʻohālikelike maikaʻi ʻole me nā mea hoʻemi wai-wai ʻē aʻe a me nā mea i hoʻololi ʻia a me ka paʻa ʻole o ka huahana e kaohi nui i ka hoʻohana ākea a me ka hoʻomohala ʻana o nā mea hoʻemi wai-polycarboxylate.
I mea e lanakila ai i nā hemahema ʻenehana i ka hoʻohana ʻana i ka polycarboxylate wai-reducing agent, a i ʻole e hoʻomaikaʻi i kekahi a i ʻole kekahi mau waiwai o ke koki (ka hana, ka paʻa paʻa, hoʻemi ʻana o ke koko, hoʻomaikaʻi i ka ikaika mua, haʻahaʻa haʻahaʻa, etc.), ʻo ia. pono e hoʻololi i ke kaʻa.
I ka hoʻomaʻamaʻa, ʻo nā ʻano hoʻololi maʻamau i hoʻohana ʻia me ka ʻenehana synthetic a me ka ʻenehana hui.Ke hoʻohālikelikeʻia me ke kaʻina hana synthetic, loaʻa i ke ʻano hui nā mea maikaʻi o ka hana maʻalahi a me ke kumu kūʻai haʻahaʻa, no laila ua hoʻohana nui ʻia i nā noi kūpono.ʻO ka ʻenehana hoʻohuihui polycarboxylate, ʻo ia ka polycarboxylate series wai-reducing agent a me nā mea ʻē aʻe (e like me ka coagulation lohi, defoamy, induction ea, ikaika mua a me nā mea ʻē aʻe) e like me kekahi hapa o ka hui hui, i mea e hoʻokō ai i ka hoʻonohonoho ʻana o ka hui. ke kūlana kiʻekiʻe o kēlā me kēia māhele.
Ka manawa hoʻouna: Jul-01-2022