Hydroxypropyl methylcellulose (HPMC mu magambo ahinnye) ni ether y'ingenzi ivanze, ikaba ari polymer idashonga mu mazi, kandi ikoreshwa cyane mu biribwa, ubuvuzi, inganda za shimi za buri munsi, gusiga irangi, gukora polymerization no kubaka nk'umusemburo wo gukwirakwiza, gukuba, gushonga, guhagarara no gukodesha, nibindi, kandi hari icyuho kinini ku isoko ry'imbere mu gihugu.
Hydroxypropyl methylcellulose ikoreshwa cyane mu nganda z'ubwubatsi nk'ikintu gitanga filime, ikintu gifunga, gikwirakwiza amazi, gitera imbaraga, gikomeza ubushyuhe, gitera amazi gukurura abantu benshi kuva yashyirwa ku murongo.
Hydroxypropylmethylcellulose
Izina ryuzuye ry'Icyongereza: Hydroxypropyl Methyl Cellulose Incamake y'Icyongereza: HPMC
Kubera ko HPMC ifite imiterere myiza nko gukurura, gukurura ingano y'ibinyabutabire, gukora firime, kurinda koloyide, kubika amazi, gufatana, kurwanya enzymes no kudakora neza kw'imitsi, ikoreshwa cyane mu gusiga, gukora polymerization reactions, ibikoresho by'ubwubatsi, gukora amavuta, imyenda, ibiribwa, imiti, ibikoresho bya buri munsi bya ceramics, ibikoresho by'ikoranabuhanga n'imbuto z'ubuhinzi n'ibindi bikoresho.
ibikoresho by'ubwubatsi
Mu bikoresho by'ubwubatsi, HPMC cyangwa MC bikunze kongerwa kuri sima, sima, na sima kugira ngo binoze uburyo bwo kubaka no kubika amazi.
Ishobora gukoreshwa nka:
1). Igikoresho cyo gufata no gufunga cya tepi ikoze muri gypsum;
2). Guhuza amatafari, amatafari n'ishingiro bishingiye kuri sima;
3). Stucco ishingiye kuri plasterboard;
4). Sima ishingiye ku gishushanyo mbonera;
5). Mu buryo bwo gukuraho irangi n'irangi.
Gufata neza amatafari ya ceramic
Ibice bya HPMC 15.3
Ibice bya Perlite 19.1
Ibinure bivanze n'ibinure bivanze na cyclic thio ibice 2.0
Ibumba ibice 95.4
Ibirungo bya silica (22μ) ibice 420
Ibice 450.4 by'amazi
Ikoreshwa muri sima ifatanye n'amatafari, amatafari, amabuye cyangwa sima:
HPMC (igipimo cyo gutatanya 1.3) ibice 0.3
Sima ya Cattelan ibice 100
Umusenyi wa silica ibice 50
Ibice 50 by'amazi
Ikoreshwa nk'inyongeramusaruro ikomeye ya sima mu bwubatsi:
Sima ya Cattelan ibice 100
Ibice 5 bya Asbestos
Gusana inzoga ya polyvinyl igice kimwe
Silikasiyumu ibice 15
Ibumba ibice 0.5
Ibice 32 by'amazi
Ibice bya HPMC 0.8
Inganda zikora amarangi
Mu nganda zikora amarangi, HPMC ikoreshwa cyane mu irangi rya latex n'ibice by'irangi rya resin rishongera amazi nk'ikintu gitanga filime, gikonjesha, gitera imbaraga kandi gitera imbaraga guhagarara.
Guhindura imiterere ya PVC mu buryo bwo gusimbuza
Igice gikoreshwa cyane mu gupima HPMC mu gihugu cyanjye ni polimeri ya vinyl chloride. Mu gupima polimeri ya vinyl chloride, sisitemu yo gukwirakwiza bigira ingaruka zitaziguye ku bwiza bw'umusaruro wa PVC resin no gutunganya no gupima ibicuruzwa byayo; ishobora kunoza ubushyuhe bwa resin no kugenzura ingano y'uduce (ni ukuvuga guhindura ubucucike bwa PVC). Ingano ya HPMC ingana na 0.025% ~ 0.03 by'umusaruro wa PVC%.
Resin ya PVC yakozwe na HPMC yo mu rwego rwo hejuru, uretse kwemeza ko imikorere yayo yujuje ibisabwa ku rwego rw'igihugu, ifite kandi imiterere myiza y'umubiri, imiterere myiza y'uduce duto ndetse n'imikorere myiza ya rheological ishongeshejwe.
izindi nganda
Izindi nganda zirimo cyane cyane amavuta yo kwisiga, ikorwa ry’amavuta, isabune, ibumba ryo mu ngo n’izindi nganda.
amazi ashongeshwa
HPMC ni imwe muri polymeri zishobora gushonga mu mazi, kandi gushonga kwayo mu mazi bifitanye isano n’ingano y’itsinda rya methoxyl. Iyo ingano y’itsinda rya methoxyl iri hasi, ishobora gushonga mu mazi akomeye kandi nta ntera yo gushonga mu buryo bwa thermodynamic. Iyo ingano ya methoxyl yiyongere, iba yoroshye kwangirika kw’amazi no gushonga mu mazi asanzwe na alkali nke. Iyo ingano ya methoxyl iri >38C, ishobora gushonga mu mazi, kandi ishobora no gushonga mu mazi ya hydrocarboni ya halogenated. Iyo aside isanzwe yongewe kuri HPMC, HPMC izahita ikwirakwira mu mazi idakora ibintu bidashonga. Ibi biterwa ahanini nuko aside isanzwe ifite amatsinda ya dihydroxyl mu mwanya wa ortho kuri glycogen itatanye.
Igihe cyo kohereza: Gicurasi-30-2023