Intangiriro muri make ya krahisi ether

Etherified krahisi ni ether isimbuza ether ikorwa nigikorwa cyamatsinda ya hydroxyl muri molekile ya krahisi hamwe nibintu byangiza, harimo hydroxyalkyl krah, carboxymethyl krah, hamwe na krahisi ya cationic. Kubera ko etherifisiyasi ya krahisi iteza imbere ubwiza bwumutimanama kandi ether ihuza ntabwo byoroshye hydrolyzed mugihe gikomeye cya alkaline, ibinyamisogwe bya etherifike bikoreshwa mubikorwa byinshi byinganda. Carboxymethyl krahisi (CMS) nuburyo butandukanye bwibicuruzwa bisanzwe bya anionic hamwe na polymer naturel polyelectrolyte ether ibora mumazi akonje. Kugeza ubu, cMS yakoreshejwe cyane mu biribwa, ubuvuzi, peteroli, imiti ya buri munsi, imyenda, gukora impapuro, ibifunga, n'inganda. i

Mu nganda zibiribwa, CMS ntabwo ari uburozi kandi ntacyo yangiza kumubiri wumuntu kandi irashobora gukoreshwa nkiterambere ryiza. Igicuruzwa cyarangiye gifite imiterere myiza, ibara nuburyohe, bigatuma cyoroha, kibyimbye kandi kibonerana; CMS irashobora kandi gukoreshwa muburyo bwo kubika ibiryo. Mu nganda zimiti, CMS ikoreshwa nka tablet disintegrant, plasma yagura, ikabyimbye mugutegura ubwoko bwa cake hamwe nogukwirakwiza imiti yo guhagarika umunwa. CMS ikoreshwa cyane munganda za peteroli nkigabanya igihombo cyamazi. Ifite imbaraga zo kurwanya umunyu, irashobora kurwanya umunyu kwiyuzuza, kandi ifite ingaruka zo kurwanya slump nubushobozi bumwe na bumwe bwo kurwanya calcium. Nibigabanya ubuziranenge bwamazi yo kugabanya. Ariko, kubera ubushyuhe buke, birashobora gukoreshwa gusa mubikorwa bidakabije. CMS ikoreshwa mubunini buke buke, kandi ifite ibiranga gutatanya byihuse, umutungo mwiza wo gukora firime, firime yoroheje, kandi byoroshye. CMS irashobora kandi gukoreshwa nka tackifier na modifier muburyo butandukanye bwo gucapa no gusiga irangi. CMS ikoreshwa nkibifatika mu mpapuro, zishobora gutuma igifuniko kigira urwego rwiza kandi rukomeye. Ibikoresho byo kubika amazi bigenzura kwinjira kwifata mu mpapuro, bigaha impapuro zometseho ibintu byiza byo gucapa. Byongeye kandi, CMS irashobora kandi gukoreshwa nkigabanya ubukana bwibicanwa byamakara hamwe n’amavuta y’amakara avanze n’ibicanwa, ku buryo bifite ihagarikwa ryiza rya emulsiyo n’amazi. Irashobora kandi gukoreshwa nka tackifier yo gusiga irangi rishingiye kumazi ya latx, imiti ya chelating yo gutunganya imyanda iremereye, hamwe nogusukura uruhu mumavuta yo kwisiga. Imiterere yumubiri niyi ikurikira:

Agaciro PH: Alkaline (5% yumuti wamazi) Gukemura: Birashobora gushonga mumazi akonje Ubwiza: Ntabwo munsi ya 500μm Viscosity: 400-1200mpas (igisubizo cyamazi 5%) Guhuza nibindi bikoresho: Nibyiza nibindi bikoresho byubaka byubaka Guhuza

1. Igikorwa nyamukuru

Ubushobozi bwiza bwihuse cyane: ubukonje buciriritse, kubika amazi menshi;

Igipimo ni gito, kandi dosiye iri hasi cyane irashobora kugera ku ngaruka ndende;

Kunoza ubushobozi bwo kurwanya-sag ibikoresho ubwabyo;

Ifite amavuta meza, ashobora kunoza imikorere yimikorere kandi bigatuma imikorere igenda neza. i

2. urugero rwo gukoresha

Ether ya krahisi ikwiranye nubwoko bwose bwa (sima, gypsumu, lime-calcium) imbere ninkuta zinyuma, hamwe nubwoko bwose bwo guhangana na minisiteri. Icyifuzo gisabwa: 0,05% -0.15% (bipimye muri toni), imikoreshereze yihariye ikurikiza igipimo nyacyo. Irashobora gukoreshwa nk'uruvange rw'ibicuruzwa bishingiye kuri sima, ibicuruzwa bishingiye kuri gypsumu n'ibicuruzwa bya lime-calcium. Ibinyamisogwe ether bifite aho bihurira nibindi byubaka hamwe nibindi; irakwiriye cyane cyane kubaka ivangwa ryumye nka minisiteri, ibifatika, guhomesha nibikoresho bizunguruka. Ethers ya krahisi na methyl selulose ethers (amanota ya Tylose MC) ikoreshwa hamwe mukubaka imvange yumye kugirango itange umubyimba mwinshi, imiterere ikomeye, irwanya sag kandi byoroshye gukemura. Ubukonje bwa minisiteri, ibifata, plaster hamwe na roters zirimo ethyl yo mu bwoko bwa methyl selile irashobora kugabanuka hiyongereyeho ethers ya krahisi. i

3. Itondekanya rya ethers

Ether ya krahisi ikoreshwa muri minisiteri ihindurwa kuva polymers karemano ya polysaccharide. Nkibirayi, ibigori, imyumbati, ibishyimbo bya guar nibindi. i

Rusange yahinduwe

Ether ya krahisi yahinduwe kuva mubirayi, ibigori, imyumbati, nibindi bifite amazi make cyane ugereranije na selile. Bitewe nurwego rutandukanye rwo guhindura, guhagarara kuri aside na alkali biratandukanye. Ibicuruzwa bimwe bikwiriye gukoreshwa muri minisiteri ishingiye kuri gypsumu, mugihe ibindi bishobora gukoreshwa muri minisiteri ishingiye kuri sima. Ikoreshwa rya krahisi ya ether muri minisiteri ikoreshwa cyane nkibyimbye kugirango itezimbere imitungo irwanya kugabanuka ya minisiteri, kugabanya gufatira kwa minisiteri itose, no kongera igihe cyo gufungura. Imashini ya krahisi ikoreshwa kenshi hamwe na selile, kuburyo imiterere nibyiza byibicuruzwa byombi byuzuzanya. Kubera ko ibicuruzwa bya krahisi bihendutse cyane kuruta selile ya selile, ikoreshwa rya etarike ya etarike muri minisiteri bizazana igabanuka ryinshi ryibiciro bya minisiteri. i

guar ether

Guar gum ether ni ubwoko bwa krahisi ether ifite imiterere yihariye, ihindurwa kuva ibishyimbo bisanzwe. Ahanini na reaction ya etherification ya guar gum na groupe ikora ya acrylic, hashyizweho urwego rurimo 2-hydroxypropyl groupe ikora, ikaba ari polygalactomannose.

(1) Ugereranije na selile ya selile, guar gum ether irashonga cyane mumazi. Agaciro pH mubyukuri nta ngaruka igira kumikorere ya guar ethers. i

. Ariko guhuzagurika, kurwanya-sag, thixotropy nibindi biragaragara ko byateye imbere. .

. Nta ngaruka mbi igira ku gihe cyo gushiraho n'imbaraga za gypsumu. i

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Guhindura amazi yimyunyu ngugu

Ubushuhe bugumana amazi bukozwe mu myunyu ngugu binyuze mu guhindura no guhuza byakoreshejwe mu Bushinwa. Amabuye y'agaciro akoreshwa mugutegura umubyimba ugumana amazi ni: sepiolite, bentonite, montmorillonite, kaolin, nibindi. Ubu bwoko bwamazi agumana umubyimba ukoreshwa kuri minisiteri ifite ibintu bikurikira. i

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(2) Ibicuruzwa bya Mortar bifite imbaraga zinyuranye zinyubako rusange zinganda nimbonezamubano zirashobora gutegurwa. i

(3) Igiciro cyibikoresho kiri hasi cyane ugereranije na selulose ether na krahisi ether.

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4. Gukoresha ibinyamisogwe ether

Etarike ya etarike ikoreshwa cyane mubwubatsi bwa minisiteri yubwubatsi, bushobora kugira ingaruka kumurongo wa minisiteri ishingiye kuri gypsumu, sima na lime, kandi igahindura imyubakire hamwe na sag irwanya minisiteri. Ubusanzwe ibinyamisogwe bikoreshwa bifatanije na selile ya selile idahinduwe kandi ihinduwe. Irakwiriye kuri sisitemu zombi zidafite aho zibogamiye na alkaline, kandi irahujwe ninyongeramusaruro nyinshi muri gypsumu nibicuruzwa bya sima (nka surfactants, MC, krahisi na polymers zishonga amazi nka polyvinyl acetate).

Ibyingenzi byingenzi:

. Ongeramo urugero rukwiye rwa etarike kuri methyl selulose ether irashobora kunoza cyane kurwanya sag no kurwanya kunyerera kwa minisiteri, hamwe numusaruro mwinshi. i

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. , Imigaragarire yimikorere, minisiteri yububiko.

Ibiranga ibinyamisogwe ether ahanini biri: ⑴kunoza ubukana bwa sag; Gutezimbere ubwubatsi; Kongera umusaruro wa minisiteri, gusabwa urugero: 0.03% kugeza 0.05%.