Aia nā palena i ka hoʻomaikaʻi ʻana i ka hana o ka gypsum paste e ka hoʻohui hoʻokahi.Inā ʻo ka hana ʻana o ka gypsum mortar e hoʻokō i nā hopena ʻoluʻolu a hoʻokō i nā koi noi like ʻole, pono nā mea hoʻohui kemika, admixtures, fillers a me nā ʻano mea like ʻole e hoʻohui a hoʻokō kekahi i kekahi i ka ʻepekema a me ke kūpono.
1. ʻO ka coagulant
Hoʻokaʻawale ʻia ka coagulant hoʻoponopono i ka retarder a me ka coagulant.I loko o ka gesso dry mix mortar, ʻo ka huahana e hoʻohana ana i ka gesso i kuke ʻia e hana i nā mea a pau e hoʻohana i ka mea hoʻopaneʻe coagulate, e hoʻohana i ka gesso anhydrous a i ʻole ka huahana e hoʻohana ana i 2 gesso wai e hana pono ai e hoʻoikaika i ka mea hoʻohui.
2. Hoʻopaneʻe
Ma ka hoʻohui ʻana i ka retarder i ka gypsum maloʻo i hui ʻia i nā mea hale, ua kāohi ʻia ke kaʻina hana hydration o ka semi-hydrous gypsum a ua hoʻolōʻihi ʻia ka manawa paʻa.He ʻokoʻa nā ʻano hydration o ka plaster gypsum, me ka hoʻohui pū ʻana o ka gypsum plaster, ka mahana o nā mea gypsum, ka maikaʻi o ka ʻāpana, ka manawa hoʻonohonoho a me ka waiwai pH o ka huahana i pau.He hopena ko kēlā me kēia kumu i ka hopena o ka hoʻopaneʻe ʻana, no laila, nui nā ʻokoʻa i ka nui o ka mea hoʻopaneʻe ma lalo o nā kūlana like ʻole.I kēia manawa, ʻoi aku ka maikaʻi o ka home gypsum special retarder he metamorphic protein (kiʻekiʻe protein) retarder, loaʻa iā ia nā mea maikaʻi o ke kumu kūʻai haʻahaʻa, lōʻihi ka manawa hoʻomaha, liʻiliʻi liʻiliʻi ikaika, hana maikaʻi, lōʻihi ka wehe ʻana a pēlā aku.Ma ka ʻano haʻahaʻa stucco gypsum hoʻomākaukau ʻana i ka nui ma 0.06% ~ 0.15%.
3. ʻO ka coagulant
ʻO ka hoʻonui ʻana i ka manawa hoʻoulu ʻana o ka slurry a me ka hoʻolōʻihi ʻana i ka wikiwiki o ka hoʻoulu ʻana o ka slurry kekahi o nā ala kino e hoʻoikaika ai i ka coagulation.ʻO nā coagulants kemika i hoʻohana mau ʻia i nā mea kūkulu hale gypsum anhydrous he potassium chloride, potassium silicate, sulfate a me nā waikawa ʻē aʻe.ʻO ka dosage maʻamau he 0.2% ~ 0.4%.
4. Mea mālama wai
ʻAʻole hiki i ka Gesso maloʻo maloʻo ke haʻalele i ka mea mālama wai.No ka hoʻomaikaʻi ʻana i ka pae paʻa wai o ka slurry huahana gypsum e hōʻoia i hiki ke noho ka wai i loko o ka gypsum slurry no ka manawa lōʻihi e loaʻa ai ka hydration maikaʻi a me ka hopena paʻakikī.ʻO ka hoʻomaikaʻi ʻana i ke kūkulu ʻana o nā mea kūkulu hale gypsum pauka, hōʻemi a pale i ka hoʻokaʻawale ʻana a me ke kahe ʻana o ka gypsum slurry, hoʻomaikaʻi i ke kahe slurry e kau ana, hoʻolōʻihi i ka manawa wehe, hoʻoponopono i nā pilikia o ka ʻenekinia e like me ka haki ʻana a me ka pahu pahu ʻaʻole hiki ke hoʻokaʻawale ʻia mai ka mea mālama wai.ʻO ka maikaʻi o ka mea mālama wai e hilinaʻi nui ʻia i kona dispersibility, solubility wikiwiki, hoʻoheheʻe ʻia, kūpaʻa wela a me ka mānoanoa, ma waena o ka mālama ʻana i ka wai ka mea nui loa.
Cellulose ether mea mālama wai
I kēia manawa, ʻo ka hydroxypropyl methyl cellulose ka mea i hoʻohana nui ʻia i ka mākeke, ukali ʻia e ka methyl cellulose, a me ka carboxymethyl cellulose.ʻOi aku ka maikaʻi o nā waiwai piha o ka hydroxypropyl methyl cellulose ma mua o ka methyl cellulose.ʻOi aku ka kiʻekiʻe o ka wai o ka hydroxypropyl methyl cellulose ma mua o ka carboxymethyl cellulose, akā ʻoi aku ka ʻino o ka hopena mānoanoa a me ka hopena paʻa ma mua o ka carboxymethyl cellulose.I loko o ka gypsum maloʻo i hui pū ʻia nā mea hale, ʻo ka nui o ka hydroxypropyl a me ka methyl cellulose aia i loko o ka laulā o 0.1% ~ 0.3%, a ʻo ka nui o ka carboxymethyl cellulose aia ma ka laulā o 0.5% ~ 1.0%.
Mea mālama wai mākū
Hoʻohana maʻamau ka ʻano starch ma ka gesso be putty i loko o ke keiki, ke ʻano o ke alo o ka stucco gesso, hiki ke hoʻololi i kahi ʻano cellulose āpau a i ʻole ke ʻano cellulose e pale i ka wai.Hiki ke hoʻomaikaʻi ʻia ka hana, ka hana ʻana a me ka paʻa ʻana o ka slurry ma ka hoʻohui ʻana i ka mea hoʻopaʻa wai starch i nā mea hale maloʻo gypsum.ʻO nā mea hoʻohana maʻamau i hoʻohana ʻia i ka starch ka mākoki hoʻopaʻa wai ʻo ia ka mākoki cassava, starch gelatinized pre, carboxymethyl starch, carboxypropyl starch.Mālama ka ʻano starch i ka nui o ka wai a hiki i ka 0.3% ~ 1% maʻamau, inā ʻoi aku ka nui o ka nui o ka hui ʻana e hana ka huahana gesso i ka maʻi maʻi ma lalo o ke kaiapuni, e pili pono i ka maikaʻi o ka papahana.
③ Mea hoʻopaʻa wai ʻano ʻano kāpili
Hiki i kekahi mau mea hoʻopili koke ke pāʻani maikaʻi i ka mālama ʻana i ka wai.E like me 17-88, 24-88 polyvinyl alcohol pauka, ʻōmaʻomaʻo a me ka guar gum i hoʻohana ʻia no ka hoʻopaʻa ʻana i ka gypsum, gypsum putty, gypsum insulation glue a me nā mea hale gypsum maloʻo i hui pū ʻia, i kekahi nui o ka hihia, hiki ke hōʻemi i ka nui o mea mālama wai cellulose.ʻOi aku i ka gypsum paʻa wikiwiki, hiki ke hoʻololi i nā cellulose ethers i kekahi mau hihia.
(4) Nā mea mālama wai ʻole
ʻO ka hoʻohana ʻana i nā mea hoʻopaʻa wai ʻē aʻe i loko o ka gypsum maloʻo i hui pū ʻia nā mea hale hiki ke hōʻemi i ka nui o nā mea mālama wai ʻē aʻe, e hōʻemi i ke kumukūʻai o nā huahana, a hoʻomaikaʻi i ka hana a me ke kūkulu ʻana o ka gypsum slurry.ʻO nā mea mālama wai inorganic maʻamau ka bentonite, kaolin, diatomite, zeolite pauka, perlite pauka, attapulgite pālolo, etc.
5. Hoʻopili
ʻOi aku ka haʻahaʻa o ka hoʻohana ʻana i ka adhesive i loko o ka gypsum maloʻo i hoʻohui ʻia i nā mea kūkulu hale ma mua o ka mea mālama wai a me ka retarder.ʻAʻole hiki i ka gesso hoʻopalekana ponoʻī ʻo Gesso, gesso adhesive, caulking gesso, mālama wela ʻaʻole hiki i ka gesso glue ke waiho i ka mea hoʻopili.
ʻO ka pauka latex hou ʻia:
Hoʻohana nui ʻia ka pauka latex redispersible i ka gypsum self-leveling mortar, gypsum insulation glue, gypsum caulking putty a pēlā aku.ʻOi aku i ka gypsum self-leveling mortar, hiki iā ia ke hana i ka slurry viscidity, maikaʻi fluidity, e hōʻemi i ka stratification, pale i ke koko, hoʻomaikaʻi i ka pale ʻana a pēlā aku hoʻi i hana nui.Hoʻohana maʻamau 1.2% ~ 2.5%.
ʻO ka waiʻona polyvinyl koke:
I kēia manawa, ʻo ka waiʻona polyvinyl i hoʻoheheʻe koke ʻia me ka nui o nā mea ma ka mākeke ʻo 24-88, 17-88 ka huahana o ʻelua mau hiʻohiʻona, hoʻohana pinepine ʻia i ka plaster adhesive, gesso, gesso compound heat preservation glue, stucco plaster a me nā huahana ʻē aʻe, i 0.4% ~ 1.2% maʻamau.
ʻO Guar gum, gelatin kahua, carboxymethyl cellulose, starch ether a pēlā aku he mau mea hoʻopili me nā hana hoʻopaʻa like ʻole i loko o ka gypsum maloʻo i hui pū ʻia nā mea hale.
6. Mānoanoa
ʻO ka mānoanoa ka mea nui e hoʻomaikaʻi ai i ka hana a me ka wai o ka gypsum slurry, e like me ka adhesive a me ka mea mālama wai, akā ʻaʻole loa.Maikaʻi kekahi huahana mea hoʻopaʻa paʻa i ka hopena mahalo, akā ʻaʻole kūpono ka mahalo i ka ikaika cohesive, ka nui o ka mālama ʻana i ka wai.I ka hana ʻana i nā mea kūkulu hale lepo maloʻo gypsum, pono e noʻonoʻo ʻia ka hopena nui o ka admixture i mea e hoʻopili pono ai i ka admixture a ʻoi aku ka maikaʻi.ʻO nā huahana mānoanoa maʻamau ka polyacrylamide, ka ʻōmaʻomaʻo, ka guar gum, carboxymethyl cellulose.
7. Ea-entraining agent
Ua ʻike ʻia ka mea hoʻoheheʻe ea ma ke ʻano he foaming agent, ka mea i hoʻohana nui ʻia i ka gypsum insulation glue, plaster plaster a me nā mea hale gypsum maloʻo maloʻo.ʻO ka mea hoʻoheheʻe ea (foaming agent) e kōkua i ka hoʻomaikaʻi ʻana i ke kūkulu ʻana, ka pale ʻana i ka haki ʻana, ka pale ʻana i ka hau, hoʻemi i ke koko a me ka hoʻokaʻawale ʻana, ʻo ke ʻano maʻamau ma 0.01% ~ 0.02%.
8. Mea hoʻoheheʻe
Hoʻohana pinepine ʻia ka defoaming agent i ka gesso self-leveling mortar, gesso caulking e hoʻokomo i loko, hiki ke hoʻonui i ka nui o ka pulp material, ikaika, kūpaʻa wai, caking sex, dosage ma 0.02% ~ 0.04% maʻamau.
9. Mea hoemi wai
Hiki i ka mea ho'ēmi wai ke hoʻomaikaʻi i ka gesso slurry fluidity a me ka gesso hardening kino ikaika, maʻamau ma gesso self leveling mortar, stucco gesso.I kēia manawa, he polycarboxylic acid retarding water reducing agent, melamine high-efficiency water reducing agent, tea system high-efficiency retarding water reducing agent, lignosulfonate water reducing agent e like me ka wai a me ka ikaika.Ma waho aʻe o ka hoʻohana ʻana i ka wai a me ka ikaika, pono ia e hoʻolohe i ka manawa hoʻonohonoho a me ka nalowale o ka wai o nā mea hale gypsum i ka wā e hoʻohana ai i ka mea hoʻohaʻahaʻa wai i ka gypsum maloʻo i hui ʻia nā mea hale.
10. Mea hoʻopaʻa wai
ʻO ka hemahema nui loa o nā huahana gypsum ʻo ka pale wai maikaʻi ʻole.ʻO ka wahi me ka haʻahaʻa o ka ea ʻoi aku ka kiʻekiʻe o nā koi kūpaʻa wai no ka gypsum dry mixed mortar.ʻO ka maʻamau, hoʻomaikaʻi ʻia ke kūpaʻa wai o ke kino paʻakikī gypsum ma ka hoʻohui ʻana i ka hoʻohui hydraulic.Ma lalo o ke kūlana o ka wai a i ʻole ka wai momona, hiki i ka coefficient palupalu o ke kino paʻakikī gypsum hiki ke hiki i 0.7, i mea e hoʻokō ai i nā koi o ka ikaika o ka huahana.Hiki ke hoʻohana ʻia nā mea hoʻohui kemika e hōʻemi i ka solubility o ka gypsum (ʻo ia hoʻi, e hoʻonui i ka coefficient palupalu), e hoʻemi i ka absorption o ka gypsum i ka wai (ʻo ia hoʻi, e hoʻemi i ka hoʻoheheʻe ʻana o ka wai) a e hoʻemi i ka erosion o ke kino paʻakikī gypsum (ʻo ia hoʻi, ka wai. kaʻawale) ala kū i ka wai.Ua loaʻa i ka gypsum waterproof agent ka ammonium borate, methyl sodium silicate, silicone resin, milk fossil wax, ʻoi aku ka maikaʻi o ka hopena a me ka silicone emulsion waterproof agent.
11. Mea hoʻoikaika kino
Hiki ke ho'āla ʻia ka gypsum anhydrous kūlohelohe a me ke kemika i mea e paʻa ai a ikaika, i kūpono no ka hana ʻana i nā mea kūkulu hale maloʻo maloʻo gypsum.Hiki i ka acid activator ke hoʻolōʻihi i ka wikiwiki hydration o ka gypsum anhydrous, hoʻopōkole i ka manawa hoʻonohonoho a hoʻomaikaʻi i ka ikaika mua o ke kino paʻakikī gypsum.ʻAʻole liʻiliʻi ka hopena o ka alkaline activator i ka wikiwiki hydration mua o ka gypsum anhydrous, akā hiki iā ia ke hoʻomaikaʻi i ka ikaika hope o ka gypsum paʻakikī kino, a hiki ke hana i ʻāpana o ka hydraulic cementing mea i loko o ka gypsum hardened body, e hoʻomaikaʻi maikaʻi i ke kūpaʻa wai o ke kino paʻakikī. .ʻOi aku ka maikaʻi o ka hoʻohana ʻana o ka acid-base compound activator ma mua o ka waika hoʻokahi a i ʻole ka mea hoʻoulu kumu.ʻO nā mea hoʻouluʻana i ka waikawa e komo pū me ka potassium alum, sodium sulfate, potassium sulfate a pēlā aku.ʻO nā mea hoʻoulu alkaline he quicklime, cement, ciment clinker, calcined dolomite a pēlā aku.
lubricant thixotropic
Hoʻohana ʻia ka lubricant Thixovariable i ka gypsum self-leveling a i ʻole stuccoing gypsum, hiki ke hōʻemi i ke kahe o ke kahe o ka gypsum mortar, hoʻolōʻihi i ka manawa wehe, pale i ka stratification a me ka hoʻoponopono ʻana o ka slurry, i mea e loaʻa ai ka slurry i ka lubricity maikaʻi a me ke kūkulu ʻana. ʻaʻahu kino paʻakikī, hoʻonui i kona ikaika ili.
Ka manawa hoʻouna: Mei-25-2022