1. Awood wax soo saarka gudaha ee hadda jira iyo baahida loo qabo hydroxyethyl cellulose
1.1 Hordhaca Alaabta
Hydroxyethyl cellulose (oo loo yaqaan hydroxyethyl cellulose) waa cellulose hydroxyalkyl muhiim ah, kaas oo si guul leh u diyaariyey Hubert 1920 iyo sidoo kale eter cellulose biyaha-milmi leh oo leh mugga wax soo saarka ballaaran ee adduunka. Kaliya tani waa tan ugu weyn uguna dhakhsaha badan ether cellulose muhiim ah ka dib CMC iyo HPMC. Hydroxyethyl cellulose waa polymer-ka aan-ionic-ka ahayn ee biyaha ku milma ee lagu helo taxane kiimiko oo suuf la safeeyey (ama saxarka alwaax). Waa wax cad, aan ur lahayn, aan dhadhamin budo ama walax adag.
1.2 Awood wax-soo-saarka adduunka iyo baahida
Waqtigan xaadirka ah, shirkadaha wax soo saarka ugu weyn adduunka ee hydroxyethyl cellulose waxay ku urursan yihiin dalal shisheeye. Waxaa ka mid ah, shirkado dhowr ah sida Hercules iyo Dow ee Mareykanka ayaa leh awoodda wax soo saarka ugu xooggan, waxaana ku xiga Boqortooyada Ingiriiska, Japan, Netherlands, Jarmalka iyo Ruushka. Waxa lagu qiyaasaa in awoodda wax-soo-saarka caalamiga ah ee hydroxyethyl cellulose ee sannadka 2013 ay noqon doonto 160,000 oo tan, iyada oo celcelis ahaan heerka kobaca sanadlaha ahi yahay 2.7%.
1.3 Awoodda wax soo saarka Shiinaha iyo baahida
Waqtigan xaadirka ah, awoodda wax soo saarka tirakoobka gudaha ee hydroxyethyl cellulose waa 13,000 oo tan. Marka laga reebo dhowr shirkadood oo soo saara, inta soo hartay ayaa inta badan la bedelay oo la isku daray, kuwaas oo aan ahayn hydroxyethyl cellulose macnaha dhabta ah. Waxay inta badan wajahayaan suuqa heerka saddexaad. Guri ahaan saafiga ah hydroxyethyl cellulose Wax soo saarka cellulose salku waxa uu ka yar yahay 3,000 ton sanadkii, awooda suuqa guduhu hadda waa 10,000 tan sanadkii, taas oo in ka badan 70% ay soo dejiyaan ama bixiyaan shirkado shisheeye. Soo-saareyaasha ajnabiga ah ee ugu waaweyn waa Shirkadda Yakuolong, Shirkadda Dow, Shirkadda Klein, Shirkadda AkzoNobel; soosaarayaasha wax soo saarka ee hydroxyethyl cellulose inta badan waxaa ka mid ah North Cellulose, Shandong Yinying, Yixing Hongbo, Wuxi Sanyou, Hubei Xiangtai, Yangzhou Zhiwei, iwm. Saamiga waxaa ku jira alaab shisheeye. Qayb ka mid ah suuqyada dunta, resinka iyo khadadka. Waxaa jira farqi muuqda oo tayo leh oo u dhexeeya wax soo saarka gudaha iyo dibadda. Suuqa-dhamaadka sare ee gudaha ee hydroxyethyl waxaa asal ahaan ka kooban alaab shisheeye, iyo wax soo saarka gudaha asal ahaan waa suuqa dhexe iyo kuwa hoose. Isticmaal isku darka si loo yareeyo khatarta.
Baahida suuqa cellulose hydroxyethyl waxay ku saleysan tahay gobolka, Webiga Pearl Delta (Koonfurta Shiinaha) waa kan ugu horreeya; Waxaa ku xiga Webiga Yangtze Delta (Bariga Shiinaha); Marka saddexaad, Koonfur-galbeed iyo Waqooyiga Shiinaha; 12ka lakab ee ugu sarreeya marka laga reebo Nippon Paint iyo Zijinhua, kuwaas oo xarunteedu tahay Shanghai, inta soo hartay waxay ku yaalaan aagga Koonfurta Shiinaha. Qaybinta ganacsiyada kiimikada maalinlaha ah ayaa sidoo kale inta badan laga helaa Koonfurta Shiinaha iyo Shiinaha Bari.
Marka la eego awoodda wax-soo-saarka hoose, rinji waa warshadaha leh isticmaalka ugu badan ee hydroxyethyl cellulose, oo ay ku xigto kiimikooyinka maalinlaha ah, iyo marka saddexaad, saliidda, iyo warshadaha kale ayaa isticmaala wax aad u yar.
Sahayda gudaha iyo baahida hydroxyethyl cellulose: guud ahaan sahayda iyo dheelitirka baahida, tayada sare ee hydroxyethyl cellulose wax yar ayaa ka dhammaatay, iyo dabaqa hoose ee injineernimada heerka hydroxyethyl cellulose, heerka batroolka hydroxyethyl cellulose, iyo hydroxyethyl cellulose wax laga beddelay Cellulose inta badan waxaa bixiya ganacsiyada gudaha. 70% wadarta guud ee suuqa hydroxyethyl cellulose ee gudaha waxaa haysta unug-dhamaadka sare ee hydroxyethyl cellulose.
Guryaha iyo isticmaalka 2-hydroxyethyl cellulose
2.1 Astaamaha hydroxyethyl cellulose
Astaamaha ugu muhiimsan ee hydroxyethyl cellulose waa in ay ku milmaan biyo qabow iyo biyo kulul, oo aan lahayn sifooyin gelling ah. Waxay leedahay heerar kala duwan oo ah beddelka shahaado, solubility iyo viscosity. roobab. Xalka Hydroxyethyl cellulose wuxuu sameyn karaa filim hufan, wuxuuna leeyahay sifooyinka nooca aan-ionic ahayn ee aan la falgelin ion oo leh iswaafajin wanaagsan.
① Heerkulka sare iyo milanka biyaha: Marka la barbardhigo methyl cellulose (MC), kaas oo kaliya lagu milmo biyo qabow, hydroxyethyl cellulose waxaa lagu milmi karaa biyo kulul ama biyo qabow. Kala duwanaansho balaadhan oo ah milanka iyo sifooyinka viscosity, iyo gelation aan kulayl ahayn;
② Iska caabbinta milixda: Sababtoo ah nooca aan-ionic ahayn, waxay la noolaan kartaa polymers-ka kale ee biyaha ku milma, surfactants iyo cusbada oo ballaaran. Sidaa darteed, marka la barbar dhigo ionic carboxymethyl cellulose (CMC), hydroxyethyl cellulose waxay leedahay iska caabin milix fiican.
③ Biyaha haynta, simida, samaynta filimada: awoodeeda biyo-hayntu waa laba jeer ka methyl cellulose, oo leh nidaam qulqulaya oo aad u fiican iyo samaynta filim heer sare ah, hoos u dhigista dareeraha, luminta, galmada kolloid ilaalinta.
2.2 Isticmaalka hydroxyethyl cellulose
Hydroxyethyl cellulose waa badeecada ether-ka cellulose-ka ah ee aan-ionic-ka-milmi karin, oo si ballaaran loogu isticmaalo daaha-dhismaha, batroolka, polymerization, daawada, isticmaalka maalinlaha ah, warqad iyo khad, dhar, dhoobo, dhismo, beero iyo warshado kale. Waxay leedahay hawlaha dhumucda, isku xidhka, emulsifying, kala firdhinta iyo xasilinta, oo hayn kartaa biyaha, samayn kartaa filim iyo bixinta saamaynta kolloid ilaalinta. Waxay si fudud ugu milmi kartaa biyo qabow iyo biyo kulul, waxayna ku siin kartaa xal leh aragti ballaadhan. Mid ka mid ah ether-ka cellulose-ka degdega ah.
1) Rinjiga cinjirka
Hydroxyethyl cellulose waa dhumucda ugu badan ee loo isticmaalo daaha cinjirka. Marka laga soo tago dhumucda lakabka cinjirka, waxa ay sidoo kale komi kartaa, kala diri kartaa, xasilin kartaa oo hayn kartaa biyaha. Waxaa lagu gartaa saameyn dhumuc leh oo cajiib ah, horumarinta midabka wanaagsan, hantida filim sameynta iyo xasilloonida kaydinta. Hydroxyethyl cellulose waa soosaar cellulose aan ionic ahayn oo loo isticmaali karo pH ballaaran. Waxay si fiican ula jaanqaadi kartaa walxaha kale ee ka kooban (sida midabada, waxyaabaha lagu daro, buuxinta iyo cusbada). Dahaarrada lagu qariyey hydroxyethyl cellulose waxay leeyihiin rheology wanaagsan oo heerar kala duwan oo xiirid ah waxayna yihiin kuwo been abuur ah. Hababka dhismaha sida burushka, dahaarka rullaluistuadka, iyo buufinta ayaa la isticmaali karaa. Dhisme wanaagsan, ma fududa in lagu tifxo, sagxdo oo firdhiso, iyo sinnaan wanaagsan.
Waqtiga boostada: Nov-11-2022