1. Te kaha hanga whare o naianei me te tono mo te hydroxyethyl cellulose
1.1 Whakataki Hua
Ko te Hydroxyethyl cellulose (e kiia ana ko te hydroxyethyl cellulose) he mea nui ki te hydroxyalkyl cellulose, i mahia paitia e Hubert i te tau 1920, a, he wai-wairewa cellulose etera me te nui o te whakaputanga o te ao. Ko tenei anake te ether cellulose nui rawa atu me te tere whakawhanake i muri i te CMC me te HPMC. Ko te Hydroxyethyl cellulose he polymer wairewa-kore katote i whiwhi mai i te raupapa o te tukatuka matū o te miro para para (he penupenu rakau ranei). He mea ma, he hongi, he paura horekau, he matū totoka kirikiri ranei.
1.2 Te kaha whakaputa o te ao me te hiahia
I tenei wa, ko nga kamupene hanga hydroxyethyl cellulose nui rawa atu o te ao kei nga whenua kee. I roto i a raatau, he maha nga kamupene penei i a Hercules me Dow i te United States he kaha te kaha ki te whakaputa, whai muri ko te United Kingdom, Japan, Netherlands, Germany me Russia. E kiia ana ko te kaha o te ao hanga o te hydroxyethyl cellulose i te tau 2013 ka 160,000 tone, me te tipu o te tau toharite o te 2.7%.
1.3 Te kaha whakaputa me te tono a Haina
I tenei wa, he 13,000 tone te kaha o te hanga tatauranga o te whare o te hydroxyethyl cellulose. Haunga etahi o nga kaihanga, ko te toenga ko te nuinga o nga mea kua whakarereketia me nga hua whakahiato, ehara i te hydroxyethyl cellulose i roto i te tikanga pono. Ko te nuinga ka anga atu ki te maakete taumata tuatoru. He iti iho i te 3,000 tone ia tau te whakaputanga o te cellulose turanga, a, ko te kaha o te maakete o naianei he 10,000 tone ia tau, neke atu i te 70% ka kawemai, ka tukuna mai ranei e nga hinonga moni kee. Ko nga kaihanga matua o waho ko te Kamupene Yakuolong, Kamupene Dow, Kamupene Klein, Kamupene AkzoNobel; Ko nga kaihanga hua hydroxyethyl cellulose whare te nuinga ko te North Cellulose, Shandong Yinying, Yixing Hongbo, Wuxi Sanyou, Hubei Xiangtai, Yangzhou Zhiwei, me etahi atu. ko te wahanga e nohoia ana e nga hua ke. Ko tetahi waahanga o nga maakete kakano, kapia me te waituhi. E kitea ana te rereketanga o te kounga i waenga i nga hua o roto me nga hua o tawahi. Ko te maakete teitei o te whare o te hydroxyethyl kei te noho noa i nga hua o tawahi, a ko nga hua o roto kei te maakete waenga me te iti-mutunga. Whakamahia te whakakotahi hei whakaiti i te tupono.
Ko te tono mo te maakete cellulose hydroxyethyl kei runga i te rohe, ko te Pearl River Delta (South China) te tuatahi; whai muri ko te awa o Yangtze Delta (Taina Rawhiti); tuatoru, ko te tonga-hauauru me te raki o Haina; Ko te 12 o nga whakakikorua taherapa o runga Haunga mo Nippon Paint me Zijinhua, kei Shanghai te tari matua, ko te toenga kei te rohe o Haina ki te Tonga. Ko te tohatoha o nga umanga matū ia ra kei te Tonga Haina me te Rawhiti o Haina.
Ki te whakatau i te kaha o te whakaputanga o raro, ko te peita te ahumahi nui rawa te kai o te hydroxyethyl cellulose, whai muri i nga matū o ia ra, tuatoru, he iti rawa te kai hinu me etahi atu ahumahi.
Ko te tuku me te tono mo te hydroxyethyl cellulose: te toenga o te tuku me te tono, he iti noa nga taonga o te hydroxyethyl cellulose o te kounga teitei, me te whakakikorua o te miihini whakakikorua o te reanga hydroxyethyl cellulose, te hinu-koeke hydroxyethyl cellulose, me te cellulose hydroxyethyl cellulose kua whakarerekētia Ko te Cellulose te nuinga o te tuku. hinonga o roto. Ko te 70% o te katoa o te maakete hydroxyethyl cellulose o te kaainga kei te nohoia e nga keemu hydroxyethyl cellulose teitei.
Nga ahuatanga me nga whakamahinga o te 2-hydroxyethyl cellulose
2.1 Nga ahuatanga o te hydroxyethyl cellulose
Ko nga ahuatanga matua o te hydroxyethyl cellulose he wairewa i roto i te wai matao me te wai wera, karekau he taonga whakaraerae. He whanuitanga o te tohu whakakapinga, te whakarewatanga me te viscosity. rerenga. Ka taea e te wairewa Hydroxyethyl cellulose te hanga i tetahi kiriata maramara, me nga ahuatanga o te momo katote-kore e kore e uru ki nga katote me te pai o te hototahi.
①Te teitei o te pāmahana me te wai whakarewatanga: Ka whakatauritea ki te methyl cellulose (MC), he mea whakarewa noa i te wai matao, ka taea te rewa te hydroxyethyl cellulose ki te wai wera, ki te wai makariri ranei. Te whānuitanga o te wairewa me nga ahuatanga pokey, me te waiariki kore;
②Atete tote: Na tona momo kore-ionic, ka taea te noho tahi me etahi atu polymers wairewa-wai, surfactants me te tai i roto i te whānuitanga whanui. No reira, ka whakatauritea ki te katote carboxymethyl cellulose (CMC), he pai ake te parenga tote hydroxyethyl cellulose.
③Ko te pupuri i te wai, te whakataurite, te hanga kiriata: ko tona kaha pupuri wai he rua nga wa o te methyl cellulose, me te pai o te rere o te rere me te pai o te hanga kiriata, te whakahekenga o te wai, te koretake, te whakamarumaru o te wahine colloid.
2.2 Te whakamahi i te hydroxyethyl cellulose
Ko te Hydroxyethyl cellulose he hua ether cellulose wairewa-kore, e whakamahia nuitia ana i roto i nga paninga hoahoanga, te hinu, te polymer polymerization, te rongoa, te whakamahi i ia ra, te pepa me te waituhi, nga papanga, nga karamu, te hanga, te ahuwhenua me etahi atu ahumahi. He nga mahi o te thickening, here, emulsifying, marara me te pūmau, a ka taea te pupuri wai, hanga he kiriata me te whakarato i te pānga colloid tiaki. He ngawari te wairewa i roto i te wai matao me te wai wera, a ka taea e ia te whakarato i tetahi otinga me te whānuitanga o te pokey. Ko tetahi o nga ethers cellulose tere.
1) Te peita taherapa
Ko te Hydroxyethyl cellulose te mea whakamaroke e whakamahia nuitia ana i roto i nga paninga taherapa. I tua atu i te whakamaroke i nga paninga taherapa, ka taea hoki te whakawhero, te marara, te whakau me te pupuri wai. Kei te tohuhia e te kaha o te matotoru, te whanaketanga tae pai, te hanga kiriata me te pumau o te rokiroki. Ko te Hydroxyethyl cellulose he paheketanga cellulose kore-ionic ka taea te whakamahi i roto i te whanui pH whanui. He pai te hototahitanga ki etahi atu rawa o te waahanga (penei i te poaka, te taapiri, te whakakii me te tote). Ko nga paninga kua whakamaroketia ki te hydroxyethyl cellulose he pai te rheology i nga momo reiti kutikuti me te pseudoplastic. Ka taea te whakamahi i nga tikanga hanga penei i te paraihe, te paninga roera, me te rehu. He pai te hanga, kaore i te ngawari ki te maturuturu, te totohu me te pakaru, me te pai o te whakataurite.
Te wa tuku: Noema-11-2022