Ikoreshwa rya Hydroxyethyl Cellulose

Imiterere y'umubiri n'imiti ya Hydroxyethyl Cellulose
Imiterere y'isura Iki gicuruzwa ni umweru kugeza ku muhondo woroshye, gifite umunyu cyangwa ifu ikomeye, ntikigira uburozi kandi ntikigira uburyohe
Aho gushonga 288-290 °C (Ukuboza)
Ubucucike 0.75 g/mL kuri 25 °C (lit.)
Gushonga Bishongera mu mazi. Ntibishongera mu bintu bisanzwe by’umwimerere. Bishongera mu mazi akonje n’amazi ashyushye, kandi muri rusange ntibishongera mu bintu byinshi by’umwimerere. Ubushyuhe buhinduka gato mu rugero rwa PH 2-12, ariko ubushyuhe bugabanuka birenze urwo rugero. Bifite inshingano zo gukomera, guhagarika, gufatanya, gushonga, gukwirakwiza no kubungabunga ubushuhe. Ibisubizo mu byiciro bitandukanye by’ubushyuhe birashobora gutegurwa. Bifite ubushyuhe bwiza cyane bw’umunyu kuri electrolytes.

Nk'umusemburo utari uwoni, hydroxyethyl cellulose ifite imiterere ikurikira usibye gukomera, guhagarika, gufatanya, kuremba, gukora filime, gukwirakwiza, kubika amazi no gutanga colloids zirinda:
1. HEC ishongeshwa mu mazi ashyushye cyangwa mu mazi akonje, ubushyuhe bwinshi cyangwa ikaranze nta mvura igwa, ku buryo ifite imiterere itandukanye yo gushonga no gushonga, kandi idashyuha cyane;
2. Ntabwo ari ionic kandi ishobora kubana n'izindi polymer nyinshi zishobora gushonga mu mazi, surfactants, n'umunyu. Ni imashini nziza cyane yo gukurura electrolyte nyinshi;
3. Ubushobozi bwo kubika amazi buri hejuru inshuro ebyiri ugereranyije n’ubwa methyl cellulose, kandi bufite uburyo bwo kugenzura neza amazi.
4. Ugereranyije na selulosi ya methyl na selulosi ya hydroxypropyl methyl, ubushobozi bwo gutatanya bwa HEC ni bwo bubi cyane, ariko ubushobozi bwo kurinda colloid ni bwo bukomeye cyane.

Ibisabwa mu rwego rwa tekiniki n'amahame ngenderwaho y'ubuziranenge bwa hydroxyethyl cellulose
Ibintu: Gusimbuza umuyoboro w'amazi (MS) 2.0-2.5 Ubushuhe (%) ≤5 Amazi adashonga (%) ≤0.5 Agaciro ka PH 6.0-8.5 Icyuma gikomeye (ug/g) ≤20 Ivu (%) ≤5 Ubushyuhe (mpa. s) 2% 20 ℃ amazi ashyushye 5-60000 icyuma cy'amazi (%) ≤0.001

Imikoreshereze ya hydroxyethyl cellulose
【Ikoreshwa 1】Ikoreshwa nk'umusemburo, umusemburo wa latex, umusemburo wo kurinda colloidal, umusemburo wo gucukura amavuta, polystyrene na polyvinyl chloride dispersant, nibindi.
[Ikoreshwa rya 2] Ikoreshwa nk'umuti ugabanya igihombo n'amazi ku mazi acukurwa n'amazi arangije gucukurwa, kandi ifite ingaruka zigaragara zo gucukura amazi asanzwe. Ishobora kandi gukoreshwa nk'umuti ugabanya igihombo cy'amazi ku sima y'amavuta. Ishobora guhuzwa na iyoni z'icyuma za polyvalent kugira ngo ikore gel.
[Ikoreshwa rya 3] Iki gicuruzwa gikoreshwa nk'icyuma gikwirakwiza polymer mu gukwirakwiza gel mu mazi, polystyrene na polyvinyl chloride mu bucukuzi bw'amabuye y'agaciro. Gishobora kandi gukoreshwa nk'ikintu gikomeza emulsion mu nganda zikora amarangi, hygrostat mu nganda zikora ibikoresho by'ikoranabuhanga, sima irwanya amaraso mu mubiri ndetse n'ikintu kibungabunga ubushuhe mu nganda z'ubwubatsi. Igikoresho cyo gusiga irangi mu nganda zikora ceramic no gufunga amenyo. Gikoreshwa kandi cyane mu gucapa no gusiga amarangi, imyenda, gukora impapuro, imiti, isuku, ibiryo, itabi, imiti yica udukoko n'ibikoresho bizimya inkongi.
[Ikoreshwa rya 4] Ikoreshwa nk'umusemburo, umusemburo wo kurinda wa colloidal, umusemburo wo gupima imiterere y'ibinyabutabire kuri vinyl chloride, vinyl acetate n'ibindi binyabutabire, kimwe n'umusemburo wo gupima imiterere y'ibinyabutabire kuri latex. Ikoreshwa cyane mu gusiga, insinga, gusiga amarangi, gukora impapuro, amavuta yo kwisiga, ubuvuzi, imiti yica udukoko, nibindi. Ifite kandi akamaro kenshi mu nganda zishakisha peteroli n'imashini.
【Ikoreshwa rya 5】Hydroxyethyl cellulose ifite inshingano zo gukora ku buso, gukurura, guhagarika, gufatanya, guhuza, gukora firime, gukwirakwiza, kubika amazi no kurinda imiti ikomeye n'ibinyabutabire.

Imikoreshereze ya hydroxyethyl cellulose
Ikoreshwa mu gusiga amavuta, amavuta yo kwisiga, amenyo y'amenyo, imiti igabanya ubushyuhe, imiti igabanya ubushyuhe ya latex, imiti irinda kolloidal, amavuta agabanya ubushyuhe, imiti igabanya ubushyuhe ya polystyrene na polyvinyl chloride, n'ibindi.

Urupapuro rw'amakuru y'umutekano w'ibikoresho bya selulosi ya Hydroxyethyl (MSDS)
1. Ibicuruzwa bifite ibyago byo guturika kw'umukungugu. Mu gihe ukoresha byinshi cyangwa byinshi, witondere kwirinda ko ivumbi rishyirwa mu kirere, kandi wirinde ubushyuhe, ibishashi, umuriro n'amashanyarazi adahindagurika. 2. Irinde ko ifu ya methylcellulose yinjira cyangwa ngo ihuze n'amaso, kandi wambare udupfukamunwa two kuyungurura n'indorerwamo z'umutekano mu gihe cyo kubikoresha. 3. Ibicuruzwa biranyerera cyane iyo bitose, kandi ifu ya methylcellulose yamenetse igomba gusukurwa ku gihe kandi hagakorwa uburyo bwo kuvura ivumbi ridaserera.

Ibiranga kubika no gutwara hydroxyethyl cellulose
Gupakira: imifuka ibiri, ipaki y'impapuro zo hanze, ipaki y'imbere ya polyethylene, uburemere bw'ibiro 20 cyangwa 25 kuri buri gikapu.
Kubika no gutwara: Bika ahantu hahumeka umwuka kandi humutse mu nzu, kandi witondere ubushuhe. Kurinda imvura n'izuba mu gihe cyo gutwara.

Uburyo bwo gutegura hydroxyethyl cellulose
Uburyo bwa 1: Shyira ipamba mbisi cyangwa ifu itunganyijwe mu ngano ya 30% y'amazi, uyikuremo nyuma y'igice cy'isaha, hanyuma ukande. Kanda kugeza igihe igipimo cy'amazi ya alkali kigeze kuri 1:2.8, hanyuma wimure mu gikoresho cyo gusya. Shyira fibre ya alkali yaciwe mu isafuriya. Ifunze hanyuma uyikuremo, wuzuze azote. Nyuma yo gusimbuza umwuka uri mu isafuriya azote, kanda mu mazi ya ethylene oxide yakonjeshejwe mbere. Ikore mu gihe cy'amasaha 2 ukoresheje ubukonje kuri 25°C kugira ngo ubone cellulose ya hydroxyethyl. Oza umusaruro wa crude na alcool hanyuma uhindure pH kuri 4-6 wongereho aside asetiki. Ongeramo glyoxal kugira ngo ihuze kandi ishaje, oza vuba n'amazi, hanyuma uvange, wumishe, hanyuma usya kugira ngo ubone cellulose ya hydroxyethyl idafite umunyu mwinshi.
Uburyo bwa 2: Alkali cellulose ni polymer karemano, buri ruziga rw'ibanze rwa fibre rugizwe n'amatsinda atatu ya hydroxyl, itsinda rya hydroxyl rikora cyane rigakora hydroxyethyl cellulose. Shyira ipamba mbisi cyangwa pulp itunganyijwe muri soda ya caustic ifite amazi ya 30%, uyikuremo hanyuma uyikanda nyuma y'igice cy'isaha. Kanda kugeza igihe igipimo cy'amazi ya alkali kigeze kuri 1:2.8, hanyuma uyisye. Shyira alkali cellulose yashongeshejwe mu gikoresho cy'imyitozo, uyifunge, uyivange, wuzuze azote, hanyuma wongere uvange n'imashini n'imashini yuzuza azote kugira ngo uhindure burundu umwuka uri mu gikoresho. Kanda mu gikoresho cya ethylene oxide cyakonjeshejwe mbere, shyira amazi akonje mu gipfunyika cy'igikoresho cy'imyitozo, hanyuma ugenzure imyitozo kuri dogere selisiyusi 25 mu gihe cy'amasaha 2 kugira ngo ubone hydroxyethyl cellulose ishaje. Igikoresho cy'ibumba gikaraba na alcool, gikamurwa kugeza kuri pH 4-6 wongeyeho aside asetiki, hanyuma gihuzwe na glyoxal kugira ngo ishaje. Hanyuma yogezwa n'amazi, igakurwamo amazi binyuze mu gucengeza, ikamanura hanyuma igasya kugira ngo ibone selulose ya hydroxyethyl. Ikoreshwa ry'ibikoresho fatizo (kg/t) ipamba cyangwa impumuro nke 730-780 soda y'amazi (30%) 2400 ethylene oxide 900 alcohol (95%) 4500 aside asetiki 240 glyoxal (40%) 100-300
Hydroxyethyl cellulose ni ifu y'umweru cyangwa umuhondo idafite impumuro, idasembuye kandi yoroshye gutemba, ishongesha mu mazi akonje n'amazi ashyushye, muri rusange ntishongesha mu bintu byinshi by'umwimerere.
Hydroxyethyl cellulose (HEC) ni umweru cyangwa umuhondo woroshye, nta mpumuro, idahumanya, idahumanya cyangwa ifu, itegurwa binyuze mu buryo bwo gukwirakwiza cellulose ya alkaline na oxide ya ethylene (cyangwa chlorohydrin). Ether za cellulose zishongeshwa na nonionic. Kubera ko HEC ifite imiterere myiza yo gukomera, guhagarika, gukwirakwiza, gukurura, guhuza, gukora filime, kurinda ubushuhe no gutanga colloid irinda, yakoreshejwe cyane mu gushakisha amavuta, gusiga, kubaka, imiti, ibiryo, imyenda, impapuro na polymer Polymerization n'ahandi. Igipimo cya 40 mesh sieving ≥ 99%; ubushyuhe bwo koroshya: 135-140°C; ubucucike bugaragara: 0.35-0.61g/ml; ubushyuhe bwo kubora: 205-210°C; umuvuduko wo gutwika buhoro; ubushyuhe bwo kuringaniza: 23°C; 50% 6% kuri rh, 29% kuri 84% rh.

Uburyo bwo gukoresha hydroxyethyl cellulose
byongeweho mu buryo butaziguye mu gihe cyo gukora
1. Shyiramo amazi meza mu ndobo nini ifite icyuma gishongesha cyane.
Hydroxyethyl cellulose
2. Tangira kuvanga ubudasiba ku muvuduko muto hanyuma buhoro buhoro ucenge cellulose ya hydroxyethyl mu gisubizo kimwe.
3. Komeza kuvanga kugeza uduce twose twuzuye.
4. Hanyuma ongeramo ikintu gikingira inkuba, ibintu by'ibanze nk'amabara, ibikoresho bifasha gukwirakwiza, amazi ya amoniya.
5. Kangura kugeza igihe selulosi ya hydroxyethyl yose ishongeshejwe burundu (ubushyuhe bw'umuti bwiyongera cyane) mbere yo kongeramo ibindi bice muri formula, hanyuma usya kugeza igihe birangiye.
Ifite inzoga z'inkorano
Ubu buryo ni ugutegura inzoga y'umubyeyi ifite ubunini bwinshi, hanyuma ukayishyira mu irangi rya latex. Akamaro k'ubu buryo ni uko ifite ubworoherane bwinshi kandi ishobora kongerwamo irangi rirangiye, ariko rigomba kubikwa neza. Intambwe zisa n'Intambwe ya 1-4 mu buryo bwa 1, itandukaniro ni uko nta mpamvu yo kuvanga kugeza ishongeshejwe burundu ikaba umuti utose.
Porridge yo gukoresha imiterere y'ibintu
Kubera ko imiti mvaruganda ari imiti mvaruganda idahagije kuri hydroxyethyl cellulose, iyi miti mvaruganda ishobora gukoreshwa mu gutegura igikoma. Imiti mvaruganda ikoreshwa cyane ni imiti mvaruganda nka ethylene glycol, propylene glycol na film formers (nka ethylene glycol cyangwa diethylene glycol butyl acetate) mu irangi. Amazi y'urubura nayo ni umuti mvaruganda udahagije, bityo amazi y'urubura akunze gukoreshwa hamwe n'amazi mvaruganda mu gutegura igikoma. Hydroxyethyl cellulose y'igikoma ishobora kongerwamo irangi mu buryo butaziguye, kandi hydroxyethyl cellulose iba yagabanijwemo ibice byinshi kandi ikagira ubushyuhe mu gikoma. Iyo yongewemo irangi, ihita ishonga kandi igakora nk'iy'ingufu. Nyuma yo kongeramo, komeza uvange kugeza igihe hydroxyethyl cellulose ishongeshejwe burundu kandi ihuye. Muri rusange, igikoma gikorwa uvanze ibice bitandatu bya organic solvent cyangwa amazi y'urubura n'igice kimwe cya hydroxyethyl cellulose. Nyuma y'iminota 6-30, hydroxyethyl cellulose izaba ya hydrolyze kandi ibyimbye neza. Mu mpeshyi, ubushyuhe bw'amazi muri rusange buba buri hejuru cyane, bityo ntabwo bikwiye gukoresha igikoma.

Amabwiriza yo kwirinda selulose ya hydroxyethyl
Kubera ko hydroxyethyl cellulose yavuwe hejuru ari ifu cyangwa selulose ikomeye, biroroshye kuyifata no kuyishongesha mu mazi igihe cyose ibintu bikurikira byitabwaho.
1. Mbere na nyuma yo kongeramo hydroxyethyl cellulose, igomba kuvangwa buri gihe kugeza igihe umuti uboneye neza kandi usobanutse.
2. Igomba gushyirwa buhoro buhoro mu gikoresho cyo kuvanga, ntushyiremo hydroxyethyl cellulose nyinshi cyangwa hydroxyethyl cellulose byakoze uduce duto mu gikoresho cyo kuvanga. 3. Ubushyuhe bw'amazi n'agaciro ka PH mu mazi bifite isano igaragara n'ishonga rya hydroxyethyl cellulose, bityo hagomba kwitabwaho cyane.
4. Ntugashyiremo ibintu bya alkaline mu ruvange mbere yuko ifu ya hydroxyethyl cellulose ishyushywa mu mazi. Kongera pH nyuma yo gushyuha bizafasha gushonga.
5. Uko bishoboka kose, ongeramo imiti irwanya imiyoboro y'amazi hakiri kare.
6. Mu gihe ukoresha hydroxyethyl cellulose ifite ubukana bwinshi, ingano y'inzoga y'umubyeyi ntigomba kurenza 2.5-3%, bitabaye ibyo inzoga y'umubyeyi izagorana kuyifata. Inzoga y'umubyeyi ...
Muri rusange ikoreshwa nk'ikintu gikomeza ubushyuhe, ikintu kirinda, gifata, gitera imbaraga kandi gikoreshwa mu gutegura emulsion, jelly, amavuta yo kwisiga, amavuta yo kwisiga, isukura amaso, isukura ry'amaso n'ibinini, ndetse ikoreshwa nk'icyuma gifasha mu gukaraba no mu magufwa. 1. Gutegura imiti igabanya ubushyuhe mu buryo buhoraho. Ishobora kandi gukoreshwa nk'ikintu gitera imbaraga mu biribwa.