Celluloseni igice cyingenzi kigizwe nurukuta rw'utugingo ngengabuzima, kandi ni cyo gikwirakwizwa cyane kandi cyinshi cya polyisikaride muri kamere, kikaba gifite ibice birenga 50% bya karubone mu bwami bw'ibimera. Muri byo, selile ya selile iri hafi 100%, niyo soko ya selile isanzwe. Muri rusange ibiti, selile ifite 40-50%, kandi hariho 10-30% hemicellulose na 20-30% lignine. Cellulose ether nijambo rusange kubikomoka kubintu bitandukanye biva muri selile naturel nkibikoresho fatizo binyuze muri etherification. Nibicuruzwa byakozwe nyuma yitsinda rya hydroxyl kuri selile ya macromolecules igice cyangwa gusimburwa rwose nitsinda rya ether. Hariho imigozi ya hydrogène hagati y-iminyururu hagati ya macromolecules ya selile, bigoye gushonga mumazi ndetse hafi yumuti wose, ariko nyuma ya etherification, kwinjiza amatsinda ya ether birashobora guteza imbere hydrophilique kandi bikongerera cyane imbaraga mumazi no mumashanyarazi. Imiterere yo gukemura.
Cellulose ether ifite izina rya "inganda monosodium glutamate". Ifite ibintu byiza cyane nko gukemura igisubizo, gukemura neza amazi, guhagarikwa cyangwa gutinda gutinda, gukora firime, kubika amazi, no gufatira hamwe. Ntabwo kandi ari uburozi kandi butaryoshye, kandi ikoreshwa cyane mubikoresho byubwubatsi, ubuvuzi, ibiryo, imyenda, imiti ya buri munsi, ubushakashatsi bwa peteroli, ubucukuzi bwamabuye y'agaciro, gukora impapuro, polymerisiyasi, ikirere nizindi nzego nyinshi. Cellulose ether ifite ibyiza byo gukoresha mugari, imikoreshereze mito mito, ingaruka nziza zo guhindura, hamwe no kubungabunga ibidukikije. Irashobora kunoza cyane no kunoza imikorere yibicuruzwa mubyiyongereyeho, bifasha kunoza imikoreshereze yumutungo hamwe nagaciro kongerewe ibicuruzwa. Ibidukikije byangiza ibidukikije nibyingenzi mubice bitandukanye.
Ukurikije ionisation ya selulose ether, ubwoko bwinsimburangingo no gutandukanya gukemuka, selile ya selile irashobora gushyirwa mubyiciro bitandukanye. Ukurikije ubwoko butandukanye bwibisimbuza, selile ya selile irashobora kugabanywamo ether imwe hamwe na ethers ivanze. Ukurikije ibisubizo, ether ya selulose irashobora kugabanywamo ibicuruzwa bitangirika mumazi nibidashonga amazi. Ukurikije ionisiyoneri, irashobora kugabanywamo ionic, non-ionic nibicuruzwa bivanze. Muri ethers ya selile yamashanyarazi, ether ya selile idafite ionic nka HPMC ifite imbaraga zo kurwanya ubushyuhe no kurwanya umunyu kuruta etion ya selile selile (CMC).
Nigute selulose ether izamura inganda?
Cellulose ether ikozwe mu ipamba inoze binyuze muri alkalisation, etherification nizindi ntambwe. Igikorwa cyo gukora icyiciro cya farumasi HPMC nicyiciro cyibiribwa HPMC mubyukuri ni bimwe. Ugereranije no kubaka ibikoresho byo mu rwego rwa selile ya selile, inzira yo gukora imiti yo mu rwego rwa farumasi HPMC hamwe na HPMC yo mu rwego rw’ibiribwa isaba etherifisiyasi yakozwe, igoye, igoye kugenzura ibikorwa by’umusaruro, kandi bisaba isuku y’ibikoresho n’ibidukikije.
Dukurikije imibare yatanzwe n’ishyirahamwe ry’inganda mu Bushinwa Cellulose, ubushobozi rusange bw’umusaruro w’inganda zitari ionic selulose ether zifite ingufu nini zo mu gihugu, nka Hercules Temple, Shandong Heda, n’ibindi, zirenga 50% by’umusaruro rusange w’igihugu. Hariho nabandi benshi bato badafite ionic selulose ether bafite ubushobozi bwo gukora munsi ya toni 4000. Usibye imishinga mike, inyinshi murizo zitanga ibikoresho bisanzwe byubaka ibikoresho bya selile selile, hamwe nubushobozi bwa toni 100.000 kumwaka. Bitewe no kutagira imbaraga z’amafaranga, ibigo byinshi bito binanirwa kubahiriza ibipimo by’ishoramari ryo kurengera ibidukikije mu gutunganya amazi no gutunganya gaze ya gaze hagamijwe kugabanya ibiciro by’umusaruro. Mu gihe igihugu na sosiyete yose bitaye cyane ku kurengera ibidukikije, izo nganda mu nganda zidashobora kuzuza ibisabwa mu kurengera ibidukikije zizahagarara buhoro buhoro cyangwa zigabanye umusaruro. Icyo gihe, inganda z’inganda zikora selile zo mu gihugu cyanjye zizarushaho kwiyongera.
Politiki yo kurengera ibidukikije mu gihugu iragenda ikomera, kandi hashyizweho ibisabwa bikomeye mu ikoranabuhanga ryo kurengera ibidukikije n’ishoramari mu musaruro waselile ether. Ingamba zo mu rwego rwo hejuru zo kurengera ibidukikije zongera igiciro cy’umusaruro w’ibigo kandi binashyiraho urwego rwo hejuru rwo kurengera ibidukikije. Ibigo bidashobora kubahiriza ibisabwa byo kurengera ibidukikije birashoboka ko bizahagarikwa buhoro buhoro cyangwa kugabanya umusaruro kubera kutubahiriza ibipimo byo kurengera ibidukikije. Nk’uko isosiyete ikora ibiteganya, ibigo bigabanya buhoro buhoro umusaruro kandi bigahagarika umusaruro bitewe n’ibidukikije byo kurengera ibidukikije bishobora kuba birimo gutanga toni zigera ku 30.000 / ku mwaka by’ibikoresho bisanzwe byubaka ibikoresho byo mu bwoko bwa selulose ether, bifasha mu kwagura imishinga ifite inyungu.
Ukurikije selile ether, ikomeza kwaguka kurwego rwohejuru kandi rwongerewe agaciro
Igihe cyo kohereza: Apr-25-2024