1. Cellulose etera
ʻO ka cellulose ether ka inoa maʻamau o nā huahana i hana ʻia e ka hopena o ka cellulose alkali a me ka etherifying agent ma lalo o kekahi mau kūlana. Hoʻololi ʻia ka alkali cellulose e nā mea etherifying ʻokoʻa e loaʻa ai nā ether cellulose ʻokoʻa. Wahi a nā waiwai ionization o nā mea pani, hiki ke hoʻokaʻawale ʻia nā cellulose ethers i ke ʻano ionic (e like me ka carboxymethyl cellulose) a me ke ʻano non-ionic (e like me ka methyl cellulose). E like me nā ʻano o nā mea pani, hiki ke hoʻokaʻawale ʻia nā cellulose ethers i nā monoethers (e like me ka methyl cellulose) a me nā ethers i hui ʻia (e like me ka hydroxypropyl methyl cellulose). Wahi a ka dissolubility ʻokoʻa, hiki ke hoʻokaʻawale ʻia i ka solubility wai (e like me ka hydroxyethyl cellulose) a me ka solvent solubility (e like me ka ethyl cellulose). ʻO ka mortar maloʻo i hui pū ʻia he cellulose hiki ke hoʻokaʻawale ʻia i ka wai, a hiki ke hoʻokaʻawale ʻia ka cellulose hiki ke hoʻokaʻawale ʻia i ke ʻano koke a me ke ʻano hoʻoheheʻe lohi ma hope o ka mālama ʻana.
ʻO ke ʻano hana o ka cellulose ether i ka mortar penei:
(1) Ma hope o ka hoʻoheheʻe ʻia ʻana o ka cellulose ether i loko o ka mortar i ka wai, ua hōʻoia ʻia ka hāʻawi pono ʻana a me ka like ʻole o nā mea cementitious i loko o ka ʻōnaehana ma muli o ka hana ma luna. Ma ke ʻano he colloid pale, ʻo ka cellulose ether e "wraps" i nā ʻāpana paʻa a hoʻokumu i kahi papa o ka lubricating film ma kona ʻaoʻao i waho, kahi e hoʻoikaika paʻa ai ka ʻōnaehana mortar, a hoʻomaikaʻi pū i ka wai o ka mortar i ke kaʻina hui ʻana a me ka maʻalahi. ke kukulu ana.
(2) Ma muli o ka molecular structure hiʻohiʻona o ka cellulose ether solution, ʻaʻole maʻalahi ka nalo ʻana o ka wai i loko o ka mortar, a hoʻokuʻu mālie ʻia i kahi manawa lōʻihi, e hāʻawi ana i ka paʻa wai maikaʻi a me ka hana.
1.1.1 Methylcellulose (MC)
Hana ʻia ka pulupulu hoʻomaʻemaʻe me ka alkali, a ua hoʻomākaukau ʻia ka cellulose ether ma o ke ʻano o nā hopena me ka methyl chloride ma ke ʻano he etherifying agent. ʻO ka maʻamau, ʻo ke degere o ka hoʻololi ʻana he 1.6 ~ 2.0, a ʻokoʻa ka solubility me ke ʻano o ka hoʻololi. No ka non-ionic cellulose ether.
(1) Hiki ke hoʻoheheʻe ʻia ka Methylcellulose i ka wai anuanu, akā paʻakikī ke hoʻoheheʻe ʻia i ka wai wela, a paʻa kona ʻano wai i ka pae o ka pH = 3 ~ 12. He kūpono maikaʻi me ka starch, guar gum a me ka nui o nā surfactants. Ke piʻi ka mahana i ka mahana gel, e ʻike ʻia ka hanana gel.
(2) ʻO ka paʻa ʻana o ka wai o ka methyl cellulose e pili ana i kona nui hoʻohui, viscosity, particle fineness and dissolution rate. ʻO ka maʻamau, ʻoi aku ka kiʻekiʻe o ka paʻa wai me ka nui o ka hoʻohui, ka liʻiliʻi liʻiliʻi a me ka viscosity nui. He hopena nui ka nui o ka hoʻohui ʻana i ka nui o ka paʻa ʻana o ka wai, a ʻaʻole like ka viscosity i ka nui o ka mālama ʻana i ka wai. ʻO ka nui o ka hoʻoheheʻe ʻana e hilinaʻi nui ʻia i ka pae hoʻololi o ka ʻili a me ka maikaʻi o nā ʻāpana cellulose. Ma waena o nā ether cellulose i luna, ʻoi aku ka nui o ka paʻa wai o ka methyl cellulose a me ka hydroxypropyl methyl cellulose.
(3) E hoʻololi koʻikoʻi ka hoʻololi o ka mahana i ka pae paʻa wai o ka methyl cellulose. ʻO ka maʻamau, ʻoi aku ka kiʻekiʻe o ka mahana, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. Inā ʻoi aku ka mahana o ka mortar ma mua o 40 ℃, e ʻoi aku ka ʻino o ka waiwai paʻa wai o ka methyl cellulose, kahi e hoʻopilikia nui ai i ka hana o ka mortar.
(4) Loaʻa i ka Methylcellulose ka mana o ka hana a me ka pili ʻana o ka mortar. ʻO ka "adhesiveness" ma aneʻi e pili ana i ka ikaika pipili i manaʻo ʻia ma waena o nā mea paʻi pena a nā limahana a me ke pani o ka paia, ʻo ia hoʻi, ka pale ʻana o ka mortar. He nui ka adhesiveness, nui ka pale ʻana o ka mortar, a ʻo ka ikaika e koi ʻia e nā mea hana i ka hana hoʻohana he nui nō hoʻi, no laila ʻilihune ke kūkulu ʻana i ka mortar. I nā huahana cellulose ether, aia ka pili o ka methyl cellulose ma kahi pae waena.
1.1.2 Hydroxypropyl methyl cellulose (HPMC)
ʻO ka Hydroxypropyl methyl cellulose (HPMC) kahi ʻano cellulose e piʻi wikiwiki ana ka hua a me ke ʻano i nā makahiki i hala. He cellulose non-ionic i hui ʻia eter i hana ʻia mai ka pulupulu hoʻomaʻemaʻe ma hope o ka mālama ʻana i ka alkalization, me ka hoʻohana ʻana i ka epoxy propane a me ka methyl chloride ma ke ʻano he etherifying agent ma o ke ʻano o nā hopena. ʻO ka pae o ka hoʻololi ʻana he 1.2-2.0. ʻOkoʻa kona mau waiwai ma muli o ka hapa o ka methoxy content a me ka hydroxypropyl content.
(1) Hiki ke hoʻoheheʻe ʻia ka hydroxypropyl methyl cellulose i ka wai anuanu, akā paʻakikī ke hoʻoheheʻe i ka wai wela. Eia naʻe, ʻoi aku ka kiʻekiʻe o ka mahana gel i ka wai wela ma mua o ka methyl cellulose. Ke hoʻohālikelike ʻia me ka methyl cellulose, ʻoi aku ka maikaʻi o ka solubility i ka wai anuanu.
(2) ʻO ka viscosity o ka hydroxypropyl methyl cellulose e pili ana i kona kaumaha mole, a ʻoi aku ka kiʻekiʻe o ke kaumaha mole, ʻoi aku ka kiʻekiʻe o ka viscosity. E pili ana ka wela i kona viscosity, a e emi ana ka viscosity ke piʻi ka mahana. Eia naʻe, ua emi ka hopena o ka viscosity kiʻekiʻe a me ka mahana ma mua o ka methyl cellulose. Paʻa ka hopena i ka mahana wela.
(3) ʻO ka paʻa ʻana o ka wai o HPMC e pili ana i kona nui hoʻohui a me ka viscosity, a ʻoi aku ka kiʻekiʻe o ka paʻa wai ma mua o ka methyl cellulose ma ka nui hoʻohui like.
(4) He kūpaʻa ka Hydroxypropyl methylcellulose i nā waikawa a me nā kumu, a paʻa kona ʻano wai i ka pae o ka pH = 2 ~ 12. ʻAʻole liʻiliʻi ka hopena o ka soda a me ka wai lime i kāna hana, akā hiki i ka alkali ke hoʻolalelale i kona helu hemo a hoʻomaikaʻi i ka pine viscosity. ʻO ka Hydroxypropyl methylcellulose paʻa i nā paʻakai maʻamau, akā inā kiʻekiʻe ke kiʻekiʻe o ka paʻakai paʻakai, piʻi ka viscosity o ka hydroxypropyl methylcellulose solution.
(5) Hiki ke hoʻohui ʻia ka hydroxypropyl methyl cellulose me nā pūhui macromolecular hiki ke hoʻoheheʻe ʻia i ka wai e hana i kahi hopena kūlike me ka viscosity kiʻekiʻe. E like me ka waiʻona polyvinyl, starch ether, mea ʻai meaʻai, etc.
(6) Hydroxypropyl methyl cellulose iʻoi aku ka maikaʻi o ka enzyme kū'ē ma mua o ka methyl cellulose, aʻo ka hiki ke hoʻohaʻahaʻa i ka enzymatic o kona hopena he haʻahaʻa ma mua o ka methyl cellulose.
(7) ʻOi aku ka kiʻekiʻe o ka hoʻopili ʻana o ka hydroxypropyl methyl cellulose i ke kūkulu ʻana i ka mortar ma mua o ka methyl cellulose.
1.1.3 Hydroxyethyl cellulose (HEC)
Hoʻomākaukau ʻia ka pulupulu i hoʻomaʻemaʻe ʻia ma ka hana ʻana me ka ethylene oxide ma ke ʻano he etherifying agent i mua o ka acetone ma hope o ka mālama ʻana i ka alkali. ʻO ka pae o ka hoʻololi ʻana he 1.5-2.0. Loaʻa iā ia ka hydrophilicity ikaika a maʻalahi ke komo i ka wai.
(1) Hiki ke hoʻoheheʻe ʻia ka hydroxyethyl cellulose i ka wai anuanu, akā paʻakikī ke hoʻoheheʻe i ka wai wela. Paʻa ka hopena i ka wela kiʻekiʻe a ʻaʻohe waiwai gel. Hiki ke hoʻohana ʻia no ka manawa lōʻihi ma lalo o ka mahana a me ke kiʻekiʻe o ka mortar, akā ʻoi aku ka haʻahaʻa o kona paʻa wai ma mua o ka methyl cellulose.
(2) He kūpaʻa ka Hydroxyethyl cellulose i nā ʻakika a me nā kumu. Hiki i ka alkali ke hoʻonui i kona hoʻoheheʻe ʻana a hoʻomaikaʻi iki i kona viscosity. ʻOi aku ka maikaʻi o kona dispersibility i ka wai ma mua o ka methyl cellulose a me ka hydroxypropyl methyl cellulose.
(3) He hana maikaʻi ka Hydroxyethyl cellulose i ka anti sagging o ka mortar, akā he lōʻihi ka manawa hoʻomaha no ka sima.
(4) He haʻahaʻa loa ka hana o ka hydroxyethyl cellulose i hana ʻia e kekahi mau ʻoihana kūloko ma mua o ka methyl cellulose ma muli o kona kiʻekiʻe o ka wai a me ka lehu.
1.1.4 Carboxymethyl cellulose
Hoʻomākaukau ʻia ka ionic cellulose ether mai nā fiber maoli (ka pulupulu, etc.) ma hope o ka mālama ʻana i ka alkali, me ka hoʻohana ʻana i ka sodium monochloroacetate ma ke ʻano he etherifying agent, a ma o ke ʻano o nā hopena. ʻO ka pae o ka hoʻololi ʻana he 0.4 ~ 1.4, a ua hoʻopilikia nui ʻia kāna hana e ka pae o ka hoʻololi.
(1) ʻO Carboxymethyl cellulose he hygroscopic nui, a he nui ka wai i loko o ka wai ke mālama ʻia ma lalo o nā kūlana maʻamau.
(2) ʻAʻole e hoʻohua ʻia ka gel carboxymethyl cellulose aqueous solution, a e emi ana ka viscosity me ka piʻi ʻana o ka mahana. Ke piʻi ka mahana ma mua o 50 ℃, ʻaʻole hiki ke hoʻohuli ʻia ka viscosity.
(3) Hoʻopilikia nui ʻia kona kūpaʻa e ka pH. ʻO ka maʻamau, hiki ke hoʻohana ʻia i ka mortar gypsum based, akā ʻaʻole i ka mortar sima. Ma ka alkalinity kiʻekiʻe, e nalowale ka viscosity.
(4) He haʻahaʻa loa kona paʻa wai ma mua o ka methyl cellulose. He hopena hoʻopaneʻe ia i ka mortar gypsum a hoʻemi i kona ikaika. Eia naʻe, ʻoi aku ka haʻahaʻa o ke kumukūʻai o ka carboxymethyl cellulose ma mua o ka methyl cellulose.
2. ʻO ka pauka polymer hiki ke hoʻihoʻi ʻia
Hana ʻia ka pauka rubber redispersible me ka wai polimer kūikawā ma o ka hoʻomaloʻo ʻana. I ka wā o ka hana ʻana, lilo ka colloid pale a me ka anti hardening agent i mea hoʻohui pono. ʻO ka pauka lāʻau maloʻo he mau ʻāpana spherical 80 ~ 100mm i hōʻuluʻulu 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 lotion mua. E hana ana kēia dispersion i kiʻiʻoniʻoni ma hope o ka maloʻo a me ka maloʻo. ʻAʻole hiki ke hoʻohuli ʻia kēia kiʻiʻoniʻoni e like me ka hoʻokumu ʻia ʻana o ke kiʻiʻoniʻoni o ka wai maʻamau, ʻaʻole e hoʻopuehu i ka wā e hālāwai ai me ka wai.
Hiki ke hoʻokaʻawale ʻia ka pauka rubber redispersible i loko o styrene butadiene copolymer, tertiary ethylene carbonate copolymer, ethylene acetic acid copolymer, etc., a ma kēia kumu, hiki ke hoʻopili ʻia ka silicon organik a me ka vinyl laurate e hoʻomaikaʻi ai i ka hana. ʻO nā ʻano hoʻololi like ʻole e loaʻa i ka pauka rubber redispersible nā waiwai like ʻole e like me ke kūpaʻa wai, ke kūpaʻa alkali, ke kū ʻana o ka wā a me ka maʻalahi. Loaʻa iā ia ka vinyl laurate a me ka silika organik, hiki ke hana i ka pauka lāʻau i ka hydrophobicity maikaʻi. Loaʻa ka waiwai Tg haʻahaʻa a me ka maʻalahi o ka ethylene tertiary carbonate kiʻekiʻe. ʻO ka hoʻohana ʻana i kēia mau pauka i loko o ka mortar he hopena lohi i ka manawa hoʻonohonoho o ka sima, akā ʻoi aku ka liʻiliʻi o ka hopena lohi ma mua o ka hoʻopili pololei ʻana o ka lotion like. ʻO ka hoʻohālikelike, ʻoi aku ka hopena o ka styrene butadiene ma mua o ka ethylene vinyl acetate. Inā he liʻiliʻi loa ka dosage, ʻaʻole maopopo ka hoʻomaikaʻi ʻana o ka hana mortar.
Hoʻohana nui ʻia ʻo Youngcel HPMC / MHEC e like me ka Chemical Auxiliary Agent for Tile Adhesive, Cement Plaster, Dry mix mortar, Wall putty, Coating, Detergent a pēlā aku.
Ua kaulana kā mākou huahana ma ʻAigupita, Lūkia, ʻApelika Hema, ka Middle East, turkey, Vietnam, Farani, Italia, Singapore, Bangladesh, Indonesia, ʻAmelika Hema a pēlā aku. Mahalo ma mua a hoʻokipa e hoʻokaʻaʻike.
Ka manawa hoʻouna: Oct-24-2022