ʻO ka starch i hoʻopaʻa ʻia he ether pani pani i hoʻokumu ʻia e ka hopena o nā pūʻulu hydroxyl i loko o nā molekala starch me nā mea reactive, me ka starch hydroxyalkyl, carboxymethyl starch, a me ka starch cationic.Ma muli o ka hoʻomaikaʻi ʻana o ka etherification o ka starch i ka paʻa o ka viscosity a ʻaʻole maʻalahi ka hydrolyzed ka paʻa ether ma lalo o nā kūlana alkaline ikaika, hoʻohana ʻia ka starch etherified i nā ʻoihana ʻoihana.ʻO Carboxymethyl starch (CMS) he ʻano denatured o nā huahana kūlohelohe anionic a me ka polymer polyelectrolyte ether e hoʻoheheʻe ʻia i ka wai anuanu.I kēia manawa, ua hoʻohana nui ʻia ka cMS i ka meaʻai, ka lāʻau lapaʻau, ka ʻaila, ka lāʻau kemika i kēlā me kēia lā, ka textile, ka hana pepa, nā mea hoʻopili, a me nā ʻoihana pena.ka
I ka ʻoihana meaʻai, ʻaʻohe mea ʻawaʻawa a maikaʻi ʻole ka CMS i ke kino o ke kanaka a hiki ke hoʻohana ʻia i mea hoʻomaikaʻi maikaʻi.ʻO ka huahana i hoʻopau ʻia he ʻano maikaʻi loa, ka waihoʻoluʻu a me ka ʻono, e hoʻomaʻamaʻa, mānoanoa a maopopo;Hiki ke hoʻohana ʻia ʻo CMS i mea mālama meaʻai.I ka ʻoihana lāʻau lapaʻau, hoʻohana ʻia ʻo CMS ma ke ʻano he papa disintegrant, plasma volume expander, thickener no ka hoʻomākaukau ʻana i ke ʻano keke a me ka dispersant lāʻau no ka suspoemulsion waha.Hoʻohana nui ʻia ʻo CMS i ka ʻoihana ʻaila e like me ka mea hoʻemi hoʻohaʻahaʻa i ka wai lepo.Loaʻa iā ia ka paʻakai paʻakai, hiki ke pale aku i ka paʻakai i ka saturation, a loaʻa nā hopena anti-slump a me kekahi mana anti-calcium.ʻO ia ka mea hoʻohaʻahaʻa wai hoʻohaʻahaʻa kiʻekiʻe.Eia nō naʻe, ma muli o ka maikaʻi ʻole o ka wela, hiki ke hoʻohana wale ʻia i nā hana pāpaʻu.Hoʻohana ʻia ʻo CMS no ka hoʻonui ʻana i nā wili māmā, a loaʻa iā ia nā ʻano o ka hoʻopuehu wikiwiki ʻana, nā waiwai hana kiʻiʻoniʻoni maikaʻi, kiʻi ʻoniʻoni palupalu, a me ka maʻalahi desizing.Hiki ke hoʻohana ʻia ʻo CMS ma ke ʻano he tackifier a hoʻololi i nā ʻano paʻi like ʻole.Hoʻohana ʻia ʻo CMS ma ke ʻano he mea hoʻopili i ka uhi pepa, hiki ke hana i ka pale i ka pae maikaʻi a me ka paʻa viscosity.ʻO kāna mau waiwai paʻa wai e hoʻomalu i ke komo ʻana o ka mea hoʻopili i ka waihona pepa, e hāʻawi ana i ka pepa i uhi ʻia i nā waiwai paʻi maikaʻi.Eia kekahi, hiki ke hoʻohana ʻia ʻo CMS e like me ka mea hoʻemi viscosity no ka lanahu slurry a me ka aila-lāhuhi hui ʻia ka wahie slurry, i loaʻa iā ia ka paʻa emulsion hoʻokuʻu a me ka fluidity.Hiki ke hoʻohana ʻia ma ke ʻano he tackifier no ka pena latex i hoʻokumu ʻia i ka wai, kahi mea chelating no ka mālama ʻana i nā metala kaumaha, a me ka hoʻomaʻemaʻe ʻili i nā mea hoʻonaninani.Penei kona mau waiwai kino.
Waiwai PH: Alkaline (5% aqueous solution) Solubility: Hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu ʻO ka maikaʻi: ʻoi aku ka liʻiliʻi ma mua o 500μm Viscosity: 400-1200mpas (5% aqueous solution) Hoʻohālikelike me nā mea ʻē aʻe: Maikaʻi me nā mea hoʻohui hale ʻē aʻe.
1. Ka hana nui
ʻOi loa ka hiki ke mānoanoa wikiwiki: ʻano viscosity, paʻa wai kiʻekiʻe;
He liʻiliʻi ka dosage, a hiki ke loaʻa kahi hopena haʻahaʻa loa;
Hoʻonui i ka hiki anti-sag o ka mea pono'ī;
Loaʻa iā ia ka lubricity maikaʻi, hiki ke hoʻomaikaʻi i ka hana hana o ka mea a hoʻomaʻamaʻa i ka hana.ka
2. laulā o ka hoʻohana
He kūpono ka starch ether no nā ʻano like ʻole (cement, gypsum, lime-calcium) i loko a me waho o ka pā pāpaʻi putty, a me nā ʻano ʻano like ʻole o ka mortar a me ka hamo.Manaʻo ʻia: 0.05% -0.15% (ana ʻia i nā tons), pili ka hoʻohana kikoʻī i ka ratio maoli.Hiki ke hoʻohana ʻia e like me ka admixture no nā huahana ciment-based, nā huahana gypsum-based a me nā huahana lime-calcium.Hiki i ka Starch ether ke kūpono me nā mea hana a me nā mea hoʻohui ʻē aʻe;He kūpono loa ia no ke kūkulu ʻana i nā hui maloʻo e like me ka mortar, adhesives, plastering and rolling materials.Hoʻohana pū ʻia nā ethers starch a me ka methyl cellulose ethers (Tylose MC grades) i ke kūkulu ʻana i nā hui maloʻo e hāʻawi i ka mānoanoa kiʻekiʻe, ka ʻoi aku ka ikaika, ka pale ʻana a me ka maʻalahi o ka lawelawe ʻana.Hiki ke hoemiia ka viscosity o na morta, adhesives, plasters and roll renders i loa'a ka methyl cellulose ethers ma o ka hoohui ana i ka starch ethers.ka
3. Ka hoʻokaʻawale ʻana o nā eter starch
Hoʻololi ʻia nā eter starch i hoʻohana ʻia i nā morta mai nā polymers maoli o kekahi polysaccharides.E like me ka ʻuala, ke kulina, ka ʻuala, ka pī guar a pēlā aku.ka
mākū hoʻololi maʻamau
ʻO ka starch ether i hoʻololi ʻia mai ka ʻuala, ke kulina, ka cassava, a me nā mea ʻē aʻe he haʻahaʻa loa ka paʻa wai ma mua o ka cellulose ether.Ma muli o ka ʻokoʻa o ka hoʻololi ʻana, ʻokoʻa ke kūpaʻa i ka waikawa a me ka alkali.Hiki ke hoʻohana ʻia kekahi mau huahana no ka hoʻohana ʻana i nā mortar gypsum-based, aʻo nā mea ʻē aʻe e hiki ke hoʻohana ʻia i nā mortar sima.Hoʻohana nui ʻia ka hoʻohana ʻana i ka starch ether i ka mortar e like me ka mānoanoa e hoʻomaikaʻi ai i ka waiwai anti-sagging o ka mortar, e hoʻemi i ka pili ʻana o ka mortar pulu, a hoʻolōʻihi i ka manawa wehe.Hoʻohana pinepine ʻia nā starch ethers me ka cellulose, i mea e hoʻokō ai nā waiwai a me nā pono o kēia mau huahana ʻelua.No ka mea ʻoi aku ka liʻiliʻi o nā huahana starch ether ma mua o ka cellulose ether, ʻo ka hoʻohana ʻana i ka starch ether i loko o ka mortar e lawe mai i kahi hōʻemi nui o ke kumukūʻai o ka hoʻokumu ʻana i ka mortar.ka
guar etera
ʻO ka guar gum ether kahi ʻano starch ether me nā waiwai kūikawā, i hoʻololi ʻia mai nā pī guar maoli.ʻO ka mea nui ma ka hopena etherification o ka guar gum a me ka hui hana acrylic, ua hoʻokumu ʻia kahi ʻano i loaʻa i ka pūʻulu hana 2-hydroxypropyl, he ʻano polygalactomannose.
(1) Ke hoʻohālikelike ʻia me ka cellulose ether, ʻoi aku ka maʻalahi o ka guar gum ether i ka wai.ʻAʻohe hopena o ka waiwai pH i ka hana o nā guar ethers.ka
(2) Ma lalo o nā kūlana o ka viscosity haʻahaʻa a me ka haʻahaʻa haʻahaʻa, hiki i ka guar gum ke hoʻololi i ka cellulose ether i ka nui like, a loaʻa ka paʻa wai like.Akā ʻoi aku ka maikaʻi o ke kūpaʻa, anti-sag, thixotropy a pēlā aku.(3) Ma lalo o nā kūlana o ka viscosity kiʻekiʻe a me ke ʻano kiʻekiʻe, ʻaʻole hiki i ka guar gum ke hoʻololi i ka cellulose ether, a ʻo ka hoʻohana ʻana i nā mea ʻelua e hana maikaʻi.
(4) ʻO ka hoʻohana ʻana i ka guar gum i ka gypsum-based mortar hiki ke hōʻemi nui i ka hoʻopili ʻana i ka wā o ke kūkulu ʻana a hoʻomaʻamaʻa i ke kūkulu ʻana.ʻAʻohe hopena ʻino i ka manawa hoʻonohonoho a me ka ikaika o ka mortar gypsum.ka
(5) Ke hoʻohana ʻia ka guar gum i ka masonry-based masonry a me ka plastering mortar, hiki iā ia ke hoʻololi i ka cellulose ether i ka nui like, a hāʻawi i ka mortar me ka ʻoi aku ka maikaʻi o ke kūpaʻa ʻana, thixotropy a me ka maʻalahi o ke kūkulu ʻana.ka
(6) Hiki ke hoʻohana ʻia ka gum guar i nā huahana e like me nā tile adhesives, nā mea hoʻonaninani ponoʻī i ka lepo, ka putty pale wai, a me ka mortar polymer no ka pale ʻana i ka paia.ka
(7) No ka mea ʻoi aku ka haʻahaʻa o ke kumu kūʻai o ka guar gum ma mua o ka cellulose ether, ʻo ka hoʻohana ʻana i ka guar gum i ka mortar e hoʻemi nui i ke kumukūʻai o ka hoʻokumu ʻana i nā huahana.ka
Hoʻololi ʻia ka mānoanoa mālama wai mineral
ʻO ka mānoanoa hoʻopaʻa wai i hana ʻia i nā minela kūlohelohe ma o ka hoʻololi ʻana a me ka hoʻohui ʻana ua hoʻohana ʻia ma Kina.ʻO nā minela nui i hoʻohana ʻia no ka hoʻomākaukau ʻana i nā mea mānoanoa hoʻopaʻa wai: sepiolite, bentonite, montmorillonite, kaolin, etc. Aia kēia mau minerala i kekahi mau waiwai mālama wai a mānoanoa ma o ka hoʻololi ʻana e like me nā mea hoʻohui.ʻO kēia ʻano ʻano mānoanoa hoʻopaʻa wai i hoʻopili ʻia i ka mortar i kēia mau ʻano.ka
(1) Hiki iā ia ke hoʻomaikaʻi nui i ka hana o ka mortar maʻamau, a hoʻoponopono i nā pilikia o ka maikaʻi ʻole o ka hana ʻana o ka mortar sima, ka ikaika haʻahaʻa o ka mortar hui ʻia, a me ke kū ʻole o ka wai.ka
(2) Hiki ke hoʻokumu ʻia nā huahana mortar me nā pae ikaika like ʻole no nā hale ʻoihana a me nā hale kīwila.ka
(3) He haʻahaʻa loa ke kumukūʻai waiwai ma mua o ka cellulose ether a me ka starch ether.
(4) ʻOi aku ka haʻahaʻa o ka paʻa ʻana o ka wai ma mua o ka mea mālama wai kūlohelohe, ʻoi aku ka nui o ka maloʻo maloʻo o ka mortar i hoʻomākaukau ʻia, a ua hoʻemi ʻia ka cohesiveness.ka
4. Hoʻohana i ka starch ether
Hoʻohana nui ʻia ʻo Starch ether i ke kūkulu ʻana i ka mortar, hiki ke hoʻopili i ke kūlike o ka mortar e pili ana i ka gypsum, ka sima a me ka lime, a hoʻololi i ke kūkulu ʻana a me ke kū ʻana o ka mortar.Hoʻohana pinepine ʻia nā ethers starch me nā cellulose ethers i hoʻololi ʻole ʻia a hoʻololi ʻia.He kūpono ia no nā ʻōnaehana kūʻokoʻa a me ka alkaline, a kūpono me ka hapa nui o nā mea hoʻohui i ka gypsum a me nā huahana cement (e like me nā surfactants, MC, starch a me nā polymers wai-soluble e like me polyvinyl acetate).
Nā hiʻohiʻona nui:
(1) Hoʻohana pinepine ʻia ka starch ether me ka methyl cellulose ether, e hōʻike ana i kahi hopena synergistic maikaʻi ma waena o nā mea ʻelua.ʻO ka hoʻohui ʻana i ka nui kūpono o ka starch ether i ka methyl cellulose ether hiki ke hoʻomaikaʻi maikaʻi i ke kūpaʻa sag a me ke kūpaʻa paheʻe o ka mortar, me ka waiwai kiʻekiʻe.ka
(2) ʻO ka hoʻohui ʻana i ka nui kūpono o ka starch ether i ka mortar i loaʻa i ka methyl cellulose ether hiki ke hoʻonui nui i ka paʻa ʻana o ka pahū a hoʻomaikaʻi i ka wai, e ʻoi aku ka maʻalahi o ke kūkulu ʻana a me ka maʻalahi o ka ʻōpala.(3) ʻO ka hoʻohui ʻana i ka nui kūpono o ka starch ether i ka mortar i loaʻa i ka methyl cellulose ether hiki ke hoʻonui i ka paʻa ʻana o ka wai o ka mortar a hoʻolōʻihi i ka manawa wehe.ka
(4) ʻO ka starch ether kahi mea hoʻololi kemika starch ether i hiki ke hoʻoheheʻe ʻia i loko o ka wai, kūpono me nā mea hoʻohui ʻē aʻe i loko o ka lepo maloʻo maloʻo, hoʻohana nui ʻia i nā tile adhesives, hoʻoponopono i nā morta, plastering plasters, loko a me waho pā putty, gypsum-based embedded Joints and filling materials .
Aia nā ʻano o ka starch ether ma: ⑴hoʻomaikaʻi i ka pale ʻana i ka sag;⑵ hoʻomaikaʻi i ke kūkulu ʻana;⑶ hoʻonui i ka hua pahū, ʻōlelo ʻia: 0.03% a 0.05%.
Ka manawa hoʻouna: Feb-16-2023