1. Umthamo wangoku wemveliso yasekhaya kunye nemfuno ye-hydroxyethyl cellulose
1.1 Intshayelelo yeMveliso
I-Hydroxyethyl cellulose (ebizwa ngokuba yi-hydroxyethyl cellulose) yi-cellulose ye-hydroxyalkyl ebalulekileyo, eyalungiswa ngempumelelo ngu-Hubert ngo-1920 kwaye ikwayi-ether ye-cellulose enyibilikayo yamanzi kunye nomthamo omkhulu wemveliso emhlabeni.Kuphela le yeyona inkulu kwaye ikhula ngokukhawuleza i-ether cellulose ebalulekileyo emva kwe-CMC kunye ne-HPMC.I-Hydroxyethyl cellulose yi-polymer e-non-ionic yamanzi e-soluble efunyenwe ngoluhlu lweekhemikhali ze-cotton esulungekileyo (okanye i-pulp yomthi).Yinto eqinileyo emhlophe, engenavumba, engenancasa okanye eyigranular.
1.2 Umthamo wemveliso yehlabathi kunye nemfuno
Okwangoku, iinkampani ezinkulu zehlabathi ze-hydroxyethyl cellulose zigxile kumazwe angaphandle.Phakathi kwazo, iinkampani ezininzi ezifana neHercules kunye neDow eUnited States zinamandla okuvelisa, zilandelwa yi-United Kingdom, iJapan, iNetherlands, iJamani kunye neRashiya.Kuqikelelwa ukuba amandla emveliso yehlabathi jikelele ye-hydroxyethyl cellulose ngo-2013 iya kuba yi-160,000 yeetoni, kunye nomyinge wokukhula ngonyaka we-2.7%.
1.3 Umthamo wemveliso yaseTshayina kunye nemfuno
Okwangoku, umthamo wasekhaya wokuvelisa i-hydroxyethyl cellulose yi-13,000 yeetoni.Ngaphandle kwabavelisi abambalwa, ezinye zilungiswa kakhulu kwaye zixutywe iimveliso, ezingeyiyo i-hydroxyethyl cellulose ngokwenyani.Ikakhulu bajongana nemarike yenqanaba lesithathu.I-Domestic pure hydroxyethyl cellulose Imveliso yesiseko se-cellulose ingaphantsi kweetoni ze-3,000 ngonyaka, kwaye umthamo wangoku wemarike yasekhaya yi-10,000 yeetoni ngonyaka, apho ngaphezu kwe-70% ithunyelwa ngaphandle okanye ibonelelwa ngamashishini axhaswa ngemali kumazwe angaphandle.Abavelisi abaphambili bangaphandle yiNkampani yeYakuolong, iDow Company, iKlein Company, iAkzoNobel Company;imveliso yasekhaya hydroxyethyl cellulose abavelisi ikakhulu ibandakanya North Cellulose, Shandong Yinying, Yixing Hongbo, Wuxi Sanyou, Hubei Xiangtai, Yangzhou Zhiwei, njl. Imarike yasekhaya hydroxyethyl cellulose isetyenziswa ikakhulu kwi-coatings kunye namashishini imichiza mihla, kwaye ngaphezu kwe-70% yemarike. isabelo sihlala kwiimveliso zangaphandle.Inxalenye yeemarike ezilukiweyo, i-resin kunye ne-inki.Kukho umsantsa ocacileyo womgangatho phakathi kweemveliso zasekhaya nezangaphandle.Imarike yasekhaya ephezulu ye-hydroxyethyl ngokusisiseko ilawulwa yimveliso yangaphandle, kwaye iimveliso zasekhaya ziphakathi kunye ne-low-end market.Sebenzisa ngokudibeneyo ukunciphisa umngcipheko.
Imfuno yemakethe ye-hydroxyethyl cellulose isekelwe kummandla, i-Pearl River Delta (eMzantsi China) yeyokuqala;kulandele iYangtze River Delta (eMpuma China);okwesithathu, uMzantsi-ntshona noMntla weTshayina;I-latex ephezulu ye-12 yokwaleka Ngaphandle kwe-Nippon Paint kunye ne-Zijinhua, ezizinze e-Shanghai, ezinye zifumaneka kummandla waseMzantsi China.Ukusasazwa kwamashishini ekhemikhali yemihla ngemihla kukwakhona ikakhulu eMzantsi China naseMpuma China.
Ukuqwalasela umthamo wemveliso esezantsi, ipeyinti imboni yokusetyenziswa kwe-hydroxyethyl cellulose, ilandelwa yimichiza yemihla ngemihla, kwaye okwesithathu, ioli kunye namanye amashishini adla kancinci kakhulu.
Ubonelelo lwasekhaya kunye nemfuno ye-hydroxyethyl cellulose: ukubonelela ngokubanzi kunye nebhalansi yemfuno, umgangatho ophezulu we-hydroxyethyl cellulose uphelelwe kancinane kwisitokhwe, kunye nenqanaba lobunjineli bomgangatho osezantsi we-hydroxyethyl cellulose, i-petroleum-grade hydroxyethyl cellulose, kunye neselulosi eguquliweyo ye-hydroxyethyl Cellulose inikezelwa ikakhulu amashishini asekhaya.I-70% yemarike yasekhaya ye-hydroxyethyl cellulose ithathwa yi-hydroxyethyl cellulose yangaphandle.
Iipropati kunye nokusetyenziswa kwe-2-hydroxyethyl cellulose
2.1 Iipropati ze-hydroxyethyl cellulose
Iimpawu eziphambili ze-hydroxyethyl cellulose kukuba i-soluble emanzini abandayo kunye namanzi ashushu, kwaye ayinayo i-gelling properties.Inoluhlu olubanzi lwedigri yokutshintsha, ukunyibilika kunye ne-viscosity.imvula.Isisombululo se-cellulose se-Hydroxyethyl sinokwenza ifilimu ecacileyo, kwaye ineempawu ze-non-ionic uhlobo olungahambelani ne-ion kwaye luhambelana kakuhle.
①Ubushushu obuphezulu kunye nokunyibilika kwamanzi: Xa kuthelekiswa ne-methyl cellulose (MC), enyibilika kuphela kumanzi abandayo, i-hydroxyethyl cellulose inokunyibilika emanzini ashushu okanye abandayo.Uluhlu olubanzi lwe-solubility kunye neempawu ze-viscosity, kunye ne-gelation engekho-thermal;
②Ukumelana netyuwa: Ngenxa yohlobo lwayo olungenayo i-ionic, luyakwazi ukuhlala kunye nezinye iipolymers ezinyibilikayo zamanzi, i-surfactants kunye neetyuwa kuluhlu olubanzi.Ke ngoko, xa kuthelekiswa ne-ionic carboxymethyl cellulose (CMC), i-hydroxyethyl cellulose inokumelana ngcono netyuwa.
③ Ukugcinwa kwamanzi, ukulinganisa, ukwenza ifilimu: amandla okugcina amanzi aphindwe kabini kune-methyl cellulose, kunye nolawulo oluhle kakhulu lokuhamba kunye nokwenza ifilimu egqwesileyo, ukunciphisa ilahleko yolwelo, ukungahambi kakuhle, isondo esikhuselayo se-colloid.
2.2 Ukusetyenziswa kwe-hydroxyethyl cellulose
I-cellulose ye-Hydroxyethyl yimveliso ye-cellulose e-ether engekho i-ionic yamanzi, esetyenziswa ngokubanzi kwi-architectural coatings, i-petroleum, i-polymerization ye-polymer, iyeza, ukusetyenziswa kwansuku zonke, iphepha kunye ne-inki, amalaphu, i-ceramics, ukwakhiwa, ezolimo kunye namanye amashishini.Inemisebenzi yokuqina, i-bonding, i-emulsifying, i-dispersing and stabilizing, kwaye inokugcina amanzi, yenza ifilimu kunye nokubonelela nge-colloid effect ekhuselekileyo.I-soluble ngokulula emanzini abandayo kunye namanzi ashushu, kwaye inokubonelela ngesisombululo esinoluhlu olubanzi lwe-viscosity.Enye yee-ether ze-cellulose ezikhawulezayo.
1) Ipeyinti yeLatex
I-Hydroxyethyl cellulose sesona sityebi sisetyenziswa kakhulu kwiingubo zelatex.Ukongeza kwiingubo zelatex ezityebileyo, inokuphinda ifake, isasaze, izinze kwaye igcine amanzi.Ibonakaliswa yimpembelelo ephawulekayo yokuqina, ukuphuhliswa kakuhle kombala, ipropati yokwenza ifilimu kunye nokuzinza kokugcina.I-Hydroxyethyl cellulose yi-non-ionic cellulose derivative enokusetyenziswa kuluhlu olubanzi lwe-pH.Inokuhambelana kakuhle kunye nezinye izinto ezikwicandelo (ezifana nee-pigments, izongezo, iifayili kunye neetyuwa).Iingubo ezijiyile nge-hydroxyethyl cellulose zinerheology elungileyo kumazinga ahlukeneyo okucheba kwaye ziyi-pseudoplastic.Iindlela zokwakha ezifana nokuxubha, ukugquma ngerola, kunye nokutshiza zinokusetyenziswa.Ulwakhiwo oluhle, akukho lula ukuthontsiza, ukugoba kunye nokuchaphaza, kunye nomgangatho olungileyo.
Ixesha lokuposa: Nov-11-2022