1 Ni iyihe mikoreshereze y'ingenzi ya eteri ya selulose HPMC?
HPMC ikoreshwa cyane mu nganda z’ubwubatsi, amarangi ashingiye ku mazi, resin y’ubukorikori, ibumba, ubuvuzi, ibiryo, imyenda, amavuta yo kwisiga, itabi, n’izindi nganda. Igabanyijemo urwego rw’ubwubatsi, urwego rw’ibiribwa, urwego rw’imiti, urwego rw’inganda rwa PVC n’urwego rw’imiti ya buri munsi.
2 Ni izihe nzego za selulose?
Selulosi zisanzwe ni MC, HPMC, MHEC, CMC, HEC, EC
Muri byo, HEC na CMC bikoreshwa cyane mu gusiga irangi rishingiye ku mazi;
CMC ishobora kandi gukoreshwa mu byuma bicukurwamo amavuta, mu biribwa n'ahandi;
EC ikoreshwa cyane mu buvuzi, mu buvuzi bw'ikoranabuhanga n'ahandi;
HPMC igabanyijemo ibice bitandukanye kandi ikoreshwa mu bikoresho bya mortiweri, ubuvuzi, ibiribwa, inganda za PVC, ibikomoka ku binyabutabire bya buri munsi n'izindi nganda.
3Ni irihe tandukaniro riri hagati ya HPMC na MHEC mu ikoreshwa?
Imiterere y'ubwoko bubiri bwa selulose muri rusange ni imwe, ariko ubushyuhe bwinshi bwa MHEC burakomera cyane, cyane cyane mu mpeshyi iyo ubushyuhe bw'urukuta buri hejuru, kandi imikorere ya MHEC yo kubika amazi ikaba myiza kuruta iya HPMC iyo hari ubushyuhe bwinshi.
4 Ni gute wasuzuma gusa ubwiza bwa HPMC?
1) Nubwo umweru udashobora kumenya niba HPMC yoroshye gukoresha, kandi niba hongewemo ibikoresho byo kwera mu gikorwa cyo kuyikora, ubwiza buzagira ingaruka, ariko ibicuruzwa byinshi byiza bifite umweru mwiza, ibyo bikaba bishobora gusobanurwa mu buryo burambuye ukurikije uko bigaragara.
2) Kohereza urumuri: Nyuma yo gushonga HPMC mu mazi kugira ngo ikore colloid ibonerana, reba uburyo urumuri rwayo rutwara. Uko urumuri rutwara neza, ni ko ibintu bidashonga biba bike, kandi ubwiza bwabyo buba bwiza.
Niba ushaka gupima neza ubwiza bwa selulose, uburyo bwizewe cyane ni ugukoresha ibikoresho by’umwuga muri laboratwari y’umwuga mu gupima. Ibipimo by’ingenzi by’isuzuma birimo ubushyuhe, igipimo cyo kubika amazi, n’umuvu.
5 Uburyo bwo gupima ubukana bwa selulose?
Viscometer isanzwe ku isoko ry’imbere mu gihugu ni NDJ, ariko ku isoko mpuzamahanga, inganda zitandukanye zikunze gukoresha uburyo butandukanye bwo gupima ubukana. Izisanzwe ni Brookfeild RV, Hoppler, kandi hari n’uburyo butandukanye bwo gupima, bugabanyijemo 1% na 2%. Viscometer zitandukanye n’uburyo butandukanye bwo gupima akenshi bitanga itandukaniro ry’inshuro nyinshi cyangwa ndetse n’inshuro nyinshi mu bisubizo bya viscometer.
6Ni irihe tandukaniro riri hagati ya HPMC instant type n'iy'ibishyushye bishonga?
Ibicuruzwa byihuse bya HPMC bivuga ibicuruzwa bihita byisuka mu mazi akonje, ariko tugomba kumenya ko gukwirakwira bidasobanura gusenyuka. Ibicuruzwa byihuse bivurwa na glyoxal hejuru hanyuma bigakwirakwizwa mu mazi akonje, ariko ntibitangira gushonga ako kanya. , bityo ubushyuhe ntibukorwa ako kanya nyuma yo gukwirakwira. Uko ingano ya glyoxal isukurwa ni ko gukwirakwira kwihuta, ariko uko ubushyuhe bwihuta, niko ingano ya glyoxal igenda igabanuka, n'ibindi.
Selulosi 7 ivanze na selulosi yahinduwe
Ubu hari cellulose nyinshi zahinduwe na cellulose ivanze ku isoko, none se guhindura na compound ni iki?
Ubu bwoko bwa selulosi akenshi bufite imiterere nk'iyo selulosi ya mbere idafite cyangwa yongera imwe mu miterere yayo, nko: kurwanya kunyerera, kongera igihe cyo gufungura, kongera ahantu ho gusya kugira ngo kunoze ubwubatsi, nibindi. Ariko, ni ngombwa kumenya ko amasosiyete menshi akoresha selulosi ihendutse ihinduranya kugira ngo igabanye ibiciro yitwa selulosi ivanze cyangwa selulosi yahinduwe. Nk'umuguzi, gerageza gutandukanya no kutabeshya. Ni byiza guhitamo ibicuruzwa byizewe bivuye mu masosiyete akomeye n'inganda nini.
Igihe cyo kohereza: Ukuboza-23-2022