1. Parizvino kugadzirwa kwepamba uye kudiwa kwehydroxyethyl cellulose
1.1 Chigadzirwa Sumo
Hydroxyethyl cellulose (inonzi hydroxyethyl cellulose) yakakosha hydroxyalkyl cellulose, iyo yakagadziridzwa zvakabudirira naHubert muna 1920 uye zvakare iri mumvura-soluble cellulose ether ine huwandu hukuru hwekugadzira munyika. Iyi chete ndiyo yakakura uye inokurumidza kukura yakakosha cellulose ether mushure meCMC neHPMC. Hydroxyethyl cellulose isiri-ionic mvura-inonyungudika polima inowanikwa nekutevedzana kwemakemikari kugadzira donje rakanatswa (kana huni pulp). Icho chinhu chichena, chisina kunhuwa, chisina kunaka kana granular solid substance.
1.2 Nyika yekugadzira kugona uye kudiwa
Parizvino, makambani makuru epasi rose ekugadzira hydroxyethyl cellulose akazara munyika dzekunze. Pakati pavo, makambani akati wandei akadai saHercules neDow muUnited States ane simba rakasimba rekugadzira, achiteverwa neUnited Kingdom, Japan, Netherlands, Germany neRussia. Zvinofungidzirwa kuti kugadzirwa kwepasi rose kwehydroxyethyl cellulose muna 2013 kuchave 160,000 matani, neavhareji yegore yekukura kwe2.7%.
1.3 Kugona kwekugadzira kweChina uye kudiwa
Parizvino, huwandu hwemukati hwekugadzira huwandu hwehydroxyethyl cellulose i13,000 matani. Kunze kwevagadziri vashoma, mamwe akanyanya kugadziridzwa uye akasanganiswa zvigadzirwa, izvo zvisiri hydroxyethyl cellulose mupfungwa yechokwadi. Ivo vanonyanya kutarisana nemusika wechitatu-tier. Domestic pure hydroxyethyl cellulose Kubuda kwe base cellulose kuri pasi pe3,000 matani pagore, uye ikozvino misika yemumba inosvika zviuru gumi zvematani pagore, izvo zvinopfuura makumi manomwe muzana zvinotengeswa kunze kwenyika kana kupihwa nemabhizinesi anotsigirwa nekunze. Vagadziri vekunze vekunze ndivo Yakuolong Company, Dow Company, Klein Company, AkzoNobel Company; mudzimba hydroxyethyl cellulose vanogadzira zvigadzirwa vanonyanya kusanganisira North Cellulose, Shandong Yinying, Yixing Hongbo, Wuxi Sanyou, Hubei Xiangtai, Yangzhou Zhiwei, etc. mugove unogarwa nezvigadzirwa zvekunze. Chikamu chemisika yemachira, resin uye inki. Pane mukaha wakajeka wehutano pakati pezvigadzirwa zvemumba nekunze. Musika wepamusoro-wekupedzisira wehydroxyethyl unongogarwa nezvigadzirwa zvekunze, uye zvigadzirwa zvepamba zviri pakati nepakati-pamusika. Shandisa pamwe chete kuderedza njodzi.
Iko kudiwa kwemusika wehydroxyethyl cellulose kunobva mudunhu, iyo Pearl River Delta (South China) ndiyo yekutanga; ichiteverwa neYangtze River Delta (East China); chechitatu, Kumaodzanyemba kwakadziva kumadokero neKuchamhembe kweChina; epamusoro gumi nembiri machira eLatex Kunze kweNippon Paint neZijinhua, ayo ane muzinda kuShanghai, mamwe akasara ari munzvimbo yeSouth China. Kugoverwa kwemabhizinesi emakemikari emazuva ese ari kunyanya kuSouth China neEast China.
Tichitarisa kubva pasi pemvura yekugadzira, pendi ndiyo indasitiri ine yakanyanya kushandiswa kwehydroxyethyl cellulose, inoteverwa nemakemikari ezuva nezuva, uye chechitatu, oiri, uye mamwe maindasitiri anodya zvishoma.
Kuwanikwa kwemumba uye kudiwa kwehydroxyethyl cellulose: kupihwa kwese uye kudiwa kwechiyero, yemhando yepamusoro hydroxyethyl cellulose ishoma kubva mudura, uye yakaderera-yekupedzisira engineering giredhi hydroxyethyl cellulose, petroleum-giredhi hydroxyethyl cellulose, uye yakagadziridzwa hydroxyethyl cellulose Cellulose inonyanya kupihwa ne mabhizimusi emumba. 70% yemusika wepasi rose wehydroxyethyl cellulose inogarwa nekunze kwepamusoro-kuguma hydroxyethyl cellulose.
Zvivakwa uye kushandiswa kwe2-hydroxyethyl cellulose
2.1 Zvivakwa zvehydroxyethyl cellulose
Izvo zvakakosha zve hydroxyethyl cellulose ndezvekuti inonyungudika mumvura inotonhora nemvura inopisa, uye haina gelling zvivakwa. Iyo ine huwandu hwakasiyana hwekutsiva dhigirii, solubility uye viscosity. kunaya kwemvura. Hydroxyethyl cellulose solution inogona kuumba firimu rakajeka, uye ine maitiro emhando isiri-ionic iyo isingabatanidzi neioni uye ine kuenderana kwakanaka.
①Kupisa kwakanyanya uye kunyungudika kwemvura: Kuenzaniswa nemethyl cellulose (MC), inongonyungudika mumvura inotonhora, hydroxyethyl cellulose inogona kunyungudika mumvura inopisa kana mvura inotonhora. Yakasiyana-siyana yekunyungudika uye viscosity maitiro, uye isiri-thermal gelation;
②Munyu kuramba: Nekuda kweiyo isiri-ionic mhando, inogona kugarisana nemamwe mapolymer anonyungudika nemvura, ma surfactants uye munyu mune zvakawanda. Naizvozvo, kana zvichienzaniswa neic carboxymethyl cellulose (CMC), hydroxyethyl cellulose ine nani kuramba munyu.
③Kuchengetwa kwemvura, kuenzanisa, kugadzira firimu: simba rekuchengetedza mvura rakapetwa kaviri kune methyl cellulose, ine yakanakisa kuyerera kwemutemo uye yakanakisa kugadzira firimu, kuderera kwekurasikirwa kwemvura, kukanganisa, kudzivirira colloid bonde.
2.2 Kushandiswa kwehydroxyethyl cellulose
Hydroxyethyl cellulose isiri-ionic mvura-soluble cellulose ether chigadzirwa, inoshandiswa zvakanyanya mukugadzira machira, petroleum, polymerization, mushonga, kushandiswa kwezuva nezuva, mapepa neingi, machira, ceramics, kuvaka, kurima uye mamwe maindasitiri. Iine mabasa ekukora, kubatanidza, emulsifying, kuparadzira uye kugadzikana, uye inogona kuchengetedza mvura, kuumba firimu uye kupa inodzivirira colloid effect. Iyo inonyungudika nyore nyore mumvura inotonhora uye inopisa mvura, uye inogona kupa mhinduro ine huwandu hwakawanda hweviscosity. Imwe yeinokurumidza cellulose ethers.
1) Latex pendi
Hydroxyethyl cellulose ndiyo inonyanya kushandiswa mukobvu mumachira e latex. Pamusoro pekukora latex machira, inogona zvakare emulsify, kuparadzira, kudzikamisa uye kuchengetedza mvura. Iyo inoratidzirwa neinoshamisa thickening mhedzisiro, yakanaka kukura kwemavara, firimu-kugadzira pfuma uye kuchengetedza kugadzikana. Hydroxyethyl cellulose isiri-ionic cellulose inotorwa inogona kushandiswa muhupamhi pH renji. Iine kuwirirana kwakanaka nezvimwe zvinhu muchikamu (senge pigment, additives, fillers uye munyu). Makomboti akakora ne hydroxyethyl cellulose ane rheology yakanaka pamhando dzakasiyana dzekugera uye ari pseudoplastic. Nzira dzekuvaka dzakaita sekukwesha, kupfekedza roller, nekupfapfaidza zvinogona kushandiswa. Kuvakwa kwakanaka, hakusi nyore kudonhedza, kusaga nekupfapfaidza, uye kuenzana kwakanaka.
Nguva yekutumira: Nov-11-2022