He kuleana koʻikoʻi ko nā mea hoʻohui i ka hoʻomaikaʻi ʻana i ka hana o ke kūkulu ʻana i ka mortar maloʻo-hui. Ke kālailai nei a hoʻohālikelike nei kēia i nā waiwai kumu o ka pauka latex a me ka cellulose, a kālailai i ka hana o nā huahana mortar maloʻo-hui me ka hoʻohana ʻana i nā mea hoʻohui.
Pauka latex hiki ke hoʻoheheʻe hou ʻia
Pauka latex hiki ke hoʻoheheʻe hou ʻiaHoʻoponopono ʻia e ka hoʻomaloʻo ʻana o ka emulsion polymer kūikawā. ʻO ka pauka latex maloʻo he mau ʻāpana poepoe o 80 ~ 100mm i hōʻiliʻili ʻia. Hiki ke hoʻoheheʻe ʻia kēia mau ʻāpana i ka wai a hana i kahi hoʻopuehu paʻa i ʻoi aku ka nui ma mua o nā ʻāpana emulsion mua, kahi e hana ai i kahi kiʻiʻoniʻoni ma hope o ka maloʻo ʻana a me ka maloʻo ʻana.
ʻO nā ʻano hoʻololi like ʻole e hana i ka pauka latex redispersible i nā waiwai like ʻole e like me ke kūpaʻa wai, ke kūpaʻa alkali, ke kūpaʻa ʻana i ka wā a me ka maʻalahi. hiki i ka pauka latex i hoʻohana ʻia i loko o ka mortar ke hoʻomaikaʻi i ke kūpaʻa hopena, ka lōʻihi, ke kūpaʻa ʻana i ka ʻaʻahu, ka maʻalahi o ke kūkulu ʻana, ka ikaika hoʻopaʻa a me ka pili ʻana, ke kūpaʻa ʻana i ka wā, ke kūpaʻa hau-thaw, ka pale ʻana i ka wai, ka ikaika kūlou a me ka ikaika flexural o ka mortar.
ʻEtera cellulose
ʻO ka Cellulose ether kahi huaʻōlelo maʻamau no kahi moʻo o nā huahana i hana ʻia e ka hopena o ka alkali cellulose a me ka etherifying agent ma lalo o kekahi mau kūlana. Hoʻololi ʻia ka alkali cellulose e nā ʻano etherifying like ʻole e loaʻa ai nā cellulose ethers like ʻole. Wahi a nā waiwai ionization o nā substituents, hiki ke hoʻokaʻawale ʻia nā cellulose ethers i ʻelua mau māhele: ionic (e like me ka carboxymethyl cellulose) a me non-ionic (e like me ka methyl cellulose). Wahi a ke ʻano o ka substituent, hiki ke hoʻokaʻawale ʻia ka cellulose ether i monoether (e like me ka methyl cellulose) a me ka ether hui ʻia (e like me ka hydroxypropyl methyl cellulose). Wahi a nā ʻano solubility like ʻole, hiki ke hoʻokaʻawale ʻia i ka wai-soluble (e like me ka hydroxyethyl cellulose) a me ka organic solvent-soluble (e like me ka ethyl cellulose), etc. ʻO ka mortar maloʻo-hui ʻia ka cellulose wai-soluble nui, a ua hoʻokaʻawale ʻia ka cellulose wai-soluble i ke ʻano koke a me ke ʻano hoʻoheheʻe lohi i mālama ʻia ma luna.
ʻO ke ʻano hana o ka cellulose ether i loko o ka mortar penei:
(1) Ma hope o kaʻEtera celluloseI loko o ka mortar i hoʻoheheʻe ʻia i ka wai, ua hōʻoia ʻia ka hoʻolaha like ʻana o ka mea sima i loko o ka ʻōnaehana ma muli o ka hana o ka ʻili, a ʻo ka cellulose ether, ma ke ʻano he colloid pale, "ʻōwili" i nā ʻāpana paʻa a ua hana ʻia kahi papa o ka ʻili lubricating ma luna o kona ʻili waho, kahi e hoʻopaʻa ai i ka ʻōnaehana mortar, a hoʻomaikaʻi pū i ka wai o ka mortar i ka wā o ke kāwili ʻana a me ka maʻalahi o ke kūkulu ʻana.
(2) Ma muli o kona ʻano molekala ponoʻī, ʻo ka hopena cellulose ether e hoʻolilo i ka wai i loko o ka mortar i mea maʻalahi ʻole e nalowale, a hoʻokuʻu mālie iā ia i kahi manawa lōʻihi, e hāʻawi ana i ka mortar me ka paʻa wai maikaʻi a me ka hana.
olonā lāʻau
Hana ʻia ka olonā lāʻau mai nā mea kanu ma ke ʻano he mea maka nui a hana ʻia e kekahi mau ʻenehana, a ʻokoʻa kāna hana mai ka cellulose ether. ʻO nā waiwai nui:
(1) Hoʻoheheʻe ʻole ʻia i ka wai a me nā mea hoʻoheheʻe, a hoʻoheheʻe ʻole ʻia hoʻi i nā waikawa nāwaliwali a me nā hopena kumu nāwaliwali
(2) I ka hoʻopili ʻia ʻana i loko o ka mortar, e hoʻopili ia i loko o kahi ʻano ʻekolu-dimensional i kahi kūlana paʻa, e hoʻonui i ka thixotropy a me ke kūpaʻa sag o ka mortar, a hoʻomaikaʻi i ka hiki ke kūkulu ʻia.
(3) Ma muli o ke ʻano ʻekolu-dimensional o ka fiber lāʻau, loaʻa iā ia ka waiwai o ka "paʻa wai" i loko o ka mortar i hui ʻia, a ʻaʻole e maʻalahi ka omo ʻana a wehe ʻia paha ka wai i loko o ka mortar. Akā, ʻaʻole i loaʻa iā ia ka paʻa wai kiʻekiʻe o ka cellulose ether.
(4) ʻO ka hopena capillary maikaʻi o ka fiber lāʻau he hana ia o ka "hoʻoili wai" i loko o ka mortar, ka mea e kūlike ai ka ʻili a me ka makū o loko o ka mortar, a laila e hōʻemi ana i nā māwae i hoʻokumu ʻia e ka emi ʻana o ka like ʻole.
(5) Hiki i ka olonā lāʻau ke hōʻemi i ke koʻikoʻi deformation o ka mortar paʻakikī a hōʻemi i ka emi ʻana a me ka nahā ʻana o ka mortar.
Ka manawa hoʻouna: ʻApelila-25-2024