Cellulose ether is natural cellulose (yakanatswa donje uye huni pulp, etc.) seyakagadzirwa zvinhu, mushure me etherification yezvakasiyana-siyana zvinobuda, ndiyo cellulose macromolecule hydroxyl hydrogen neboka reether zvishoma kana zvachose rakatsiviwa mushure mekuumbwa kwezvigadzirwa, ndiyo yakadzika kubva pasi pemvura. ye cellulose.Cellulose inogona kunyungudutswa mumvura, dilute alkali solution uye organic solvent mushure me etherification, uye ine thermoplastic properties.Cellulose ether yakasiyana-siyana, inoshandiswa zvakanyanya mukuvaka, simende, kuvhara, mushonga, chikafu, peturu, zuva nezuva kemikari, machira, mapepa uye zvigadzirwa zvemagetsi uye mamwe maindasitiri.Zvinoenderana nehuwandu hwezvinotsiva zvinogona kukamurwa kuita ether imwechete uye yakasanganiswa ether, zvinoenderana neionization inogona kukamurwa kuita ionic cellulose ether uye isiri-ionic cellulose ether.Parizvino, ionic cellulose ether ionic chigadzirwa chekugadzira chigadzirwa chakura, chiri nyore kugadzira uye chine mutengo wakaderera, zvipingamupinyi zveindasitiri zvakaderera, zvinonyanya kushandiswa mukuwedzera kwechikafu, machira ekuwedzera, makemikari ezuva nezuva uye mimwe minda, ndiyo inonyanya kugadzira zvigadzirwa pamusika.
Parizvino, iyo mainstream cellulose ether yepasi rose ndeye CMC, HPMC, MC, HEC uye mamwe akati wandei, CMC inobuda ndiyo yakakura, inoverengera inenge hafu yezvakabuda pasi rose, nepo HPMC neMC zvese zvinotora 33% yezvinodiwa pasi rose, HEC inotora chikamu che13% chemusika wepasi rose.Iyo inonyanya kukosha yekupedzisira-kushandiswa kwecarboxymethyl cellulose (CMC) ndeye detergent, inoverengera inosvika makumi maviri nembiri muzana yemusika wepasi pemusika, uye zvimwe zvigadzirwa zvinonyanya kushandiswa mukuvaka, chikafu nemishonga.
Ii.Downstream application
Munguva yakapfuura, nekuda kwekushomeka kwekuda kuvandudzwa kwe cellulose ether mumakemikari ezuva nezuva, mushonga, chikafu, machira uye mamwe minda muChina, kudiwa kweselulosi ether muChina kwakanyatso kutariswa mumunda wezvigadzirwa zvekuvaka, kusvika nhasi, chivakwa. indasitiri yezvishandiso ichiri kutora 33% yekudiwa kweselulosi ether muChina.Uye kufanana neChina cellulose ether mumunda wezvivakwa zvekuvakisa kudiwa kwave kuzara, mumakemikari ezuva nezuva, mushonga, chikafu, coating uye mamwe minda yekuda iri kukura nekukurumidza nekuvandudzwa kwehunyanzvi hwekushandisa.Semuyenzaniso, mumakore achangopfuura, chirimwa capsule ine cellulose ether sechinhu chikuru mbishi, pamwe chete nezvigadzirwa zvinobuda zvakagadzirwa nenyama yakagadzirwa ne cellulose ether zvine tarisiro yekuda kwakawanda uye nzvimbo yekukura.
Mundima yezvivakwa zvekuvaka, semuenzaniso, cellulose ether ine thickening, kuchengetwa kwemvura, inononoka condensation uye humwe hunhu hwakanakisa, saka zvekuvaka giredhi cellulose ether inoshandiswa zvakanyanya kuvandudza mashandiro ezvigadzirwa zvekuvaka zvinosanganisira dhaka rakagadzirwa (kusanganisira rakanyorova. yakasanganiswa dhaka uye yakaoma yakasanganiswa dhaka), PVC resin kugadzira, latex pendi, putty, nezvimwewo. uye zvinodiwa nevatengi zvezvakatipoteredza zvezvinhu zvekuvaka zviri kuramba zvichikwira zvichikwira, zvichitungamira kudiwa kweiyo isiri-ionic cellulose ether mumunda wezvinhu zvekuvaka.Munguva yechigumi nenhatu yeChirongwa cheMakore mashanu, China yakakurumidza kuvandudzwa kwenzvimbo dzakaparara nedzimba dzakasakara mumaguta, uye kusimbaradza kuvakwa kwezvivakwa zvemumadhorobha, kusanganisira kukurumidza kuvandudzwa kwenzvimbo dzakaungana dzakakoromoka nemisha mumaguta, uye kusimudzira zvine hungwaru kuvandudzwa kwemaguta. nzvimbo dzekugara dzakasakara uye kugadziridzwa kwedzimba dzekare dzakasakara uye dzimba dzisina kukwana.Muhafu yekutanga ya2021, 755.15 miriyoni square metres yenzvimbo yekugara yakatangwa, yakakwira 5.5 muzana.Nzvimbo yakapedzwa yeimba ndeye 364.81 miriyoni square metres, kusvika 25.7%.Iyo rebound yenzvimbo yakapedzwa yezvivakwa inotyaira kudiwa kwakakodzera mumunda we cellulose ether zvekuvaka.
3. Mutambo wemakwikwi emusika
China inyika yepasi rose yekugadzira cellulose ether, padanho razvino rezvivakwa zvekuvaka giredhi cellulose ether yakawana kuwanikwa kwenzvimbo, Anxin Chemistry inotungamira mabhizinesi mumunda we cellulose ether, mamwe makuru ekugadzira emumba anosanganisirawo Kima Chemical etc. Coating level, mishonga yemishonga. chikafu giredhi cellulose ether parizvino inonyanya kuUnited States Dow, Ashland, Japan shinetsu, South Korea Lotte uye humwe hutongi hwekunze.Pamusoro peAnxin chemistryakati wandei anopfuura zviuru gumi matani emabhizinesi, zviuru zvematani easiri-ionic cellulose eta madiki ekugadzira mabhizinesi, mazhinji emabhizinesi madiki aya anogadzira akajairwa emhando yekuvakisa giredhi cellulose ether, uye hapana simba rekugadzira zvimwe zvekudya zvepamusoro uye zvigadzirwa zvemishonga.
Ina, cellulose ether kupinza uye kunze kwenyika mamiriro
Muna 2020, nekuda kwedenda remhiri kwemakungwa kwakakonzera kudzikira kwekugadzira mabhizinesi ekunze, China cellulose ether inotengeswa kunze kwakaratidza kukurumidza kukurumidza maitiro, muna 2020 kuwana kunze kweiyo cellulose ether 77,272 matani.Kunyangwe huwandu hwekutengesa kunze kwe cellulose ether kuChina huchikura nekukurumidza, zvigadzirwa zvekunze zvinonyanya kuenderana nekuvaka cellulose ether, nepo huwandu hwekutengesa kunze kwemishonga uye inodyika cellulose ether idiki kwazvo, uye kukosha kwakawedzerwa kwezvigadzirwa kunze kwenyika kwakaderera.Parizvino, vhoriyamu ye cellulose ether yekuChina inotengeswa kunze kwenyika yakapetwa kana, asi huwandu hwekutumirwa kunze kwenyika huri pasi pekaviri huwandu hwekutengwa kunze kwenyika.Mumunda wezvigadzirwa zvepamusoro-soro zvemukati cellulose ether yekutsinhanisa kunze kwenyika ichiri nzvimbo yakakura yekusimudzira.
Nguva yekutumira: Jun-07-2022