Uruvangitirane ruto, rufite uruhare runini mugutezimbere imikorere yubwubatsi bwumye buvanze, bingana na 40% yikiguzi cyibikoresho byumye.Ibyinshi mubivanga mumasoko yimbere mugihugu bitangwa nababikora mumahanga, kandi dosiye yerekana ibicuruzwa nayo itangwa nababitanga.Igiciro cyibicuruzwa byumye bivanze byumye bikomeza kuba hejuru bityo, kandi biragoye kumenyekanisha imyubakire isanzwe hamwe na pompe ya pompe hamwe ninshi kandi nini.Ibicuruzwa byo ku isoko ryo mu rwego rwo hejuru bigenzurwa n’amasosiyete yo mu mahanga, kandi inganda zivanze na minisiteri zifite inyungu nke kandi zidahenze ku giciro;ikoreshwa ryimvange ridafite ubushakashatsi butunganijwe kandi bugamije, kandi bukurikiza buhumyi formulaire zamahanga.Hano, icyo dusangiye nawe, ni uruhe ruhare rwa hydroxypropyl methylcellulose mu ruvange rusanzwe rwa minisiteri ivanze?
Hydroxypropyl methylcellulose ni selile ya selile itanga umusaruro nogukoresha byiyongereye vuba mumyaka yashize.Hydroxypropyl methylcellulose ikozwe mu ipamba itunganijwe nyuma yo kuvura alkalisation, ikoresheje okiside ya propylene na methyl chloride nkibikoresho bya etherification, selile ya ionic selile itavanze ikozwe muburyo butandukanye.Urwego rwo gusimbuza muri rusange ni 1.2 ~ 2.0.Imiterere yacyo iratandukanye bitewe nikigereranyo cyibikorwa bya vitxyl hamwe na hydroxypropyl.Ibiranga hydroxypropyl methylcellulose nibi bikurikira:
1. Hydroxypropyl methylcellulose irashobora gushonga byoroshye mumazi akonje, kandi izahura ningorane zo gushonga mumazi ashyushye.Ariko ubushyuhe bwacyo bwo mumazi ashyushye buri hejuru cyane ugereranije na methyl selile.Ubushyuhe bwo mumazi akonje nabwo buratera imbere cyane ugereranije na methyl selulose.
2. Ubukonje bwa hydroxypropyl methylcellulose bufitanye isano n'uburemere bwacyo.Nuburemere bwa molekile nini, niko ubwiza bwiyongera.Ubushyuhe nabwo bugira ingaruka ku bwenge bwabwo, uko ubushyuhe bwiyongera, ubukonje bugabanuka.Nyamara, ingaruka zubukonje bwazo nubushyuhe buri munsi ugereranije na methyl selile.Igisubizo cyacyo gihamye iyo kibitswe mubushyuhe bwicyumba.
3. Kugumana amazi ya hydroxypropyl methylcellulose biterwa nubunini bwiyongereye, ubwiza, nibindi, kandi igipimo cyayo cyo gufata amazi munsi y’inyongera kikaba kinini kuruta icya methyl selulose.
4. Hydroxypropyl methylcellulose ihamye kuri aside na alkali, kandi igisubizo cyayo cyamazi kirahagaze neza murwego rwa pH = 2 ~ 12.Caustic soda n'amazi ya lime ntacyo bihindura kumikorere yabyo, ariko alkali irashobora kwihutisha iseswa ryayo kandi ikongerera gato ububobere bwayo.Hydroxypropyl methylcellulose ihagaze neza kumunyu usanzwe, ariko iyo ubunini bwumuti wumunyu mwinshi, ubwiza bwumuti wa hydroxypropyl methylcellulose bikunda kwiyongera.
5. Hydroxypropyl methylcellulose irashobora kuvangwa na polymer zishonga mumazi kugirango bibe igisubizo kimwe kandi kinini.Nka alcool ya polyvinyl, ibinyamisogwe ether, amase y'imboga, nibindi.
6. Hydroxypropyl methylcellulose ifite enzyme nziza irwanya methylcellulose, kandi amahirwe yo kwangirika kwimisemburo yumuti wacyo ni make ugereranije na methylcellulose.
7. Gufatanya na hydroxypropyl methylcellulose mukubaka minisiteri birenze ibya methylcellulose.
Igihe cyo kohereza: Gicurasi-09-2023