Cellulose etheris natural cellulose (yakanatswa donje uye huni pulp, etc.) sezvo mbishi zvinhu, pashure etherification yezvakasiyana-siyana derivatives, ndiyo cellulose macromolecule hydroxyl hydrogen neboka ether zvishoma kana zvachose kutsiviwa pashure paumbwe zvigadzirwa, ndiyo yakadzika derivatives pamusoro 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, pasi rose cellulose ether ndiyoCMC, HPMC, MC, HECnezvimwe zvakawanda,CMCinobuda ndiyo hombe, inoverengera hafu yezvakabuda pasi rose, nepo HPMC neMC zvese zvichitora chikamu che33% chezvinodiwa 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 wezvivakwa zvekuvaka, kusvika nhasi, indasitiri yezvivakwa zvekuvaka ichiri kutora 33% yekudiwa kweselulosi ether kuChina. 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 zvekuvakisa, semuenzaniso, cellulose ether nekukora, kuchengetedza mvura, kunonoka condensation uye humwe hunhu hwakanakisa, saka zvekuvaka giredhi cellulose ether inoshandiswa zvakanyanya kuvandudza mashandiro ezvigadzirwa zvekuvaka zvinosanganisira dhaka rakagadzirwa-yakasanganiswa (kusanganisira yakanyorova yakasanganiswa dhaka uye yakaoma yakasanganiswa dhaka), PVC resin kugadzirwa, latex pendi, kukurumidza kuvandudzwa kwenzvimbo yekuvaka yeChina, putty, nezvimwe. indasitiri yezvishandiso, nhanho yekuvaka mechanization inoramba ichivandudza, uye zvinodiwa nevatengi zvezvakatipoteredza zvezvinhu zvekuvaka zviri kuramba zvichikwira, zvichitungamira kudiwa kweiyo isiri-ionic cellulose ether mumunda wezvigadzirwa zvekuvaka. Munguva yechigumi nenhatu yeChirongwa cheMakore mashanu, China yakakurumidzira kugadziridzwa kwenzvimbo dzakaparara nedzimba mumaguta, uye kusimbaradza kuvakwa kwezvivakwa zvemumadhorobha, kusanganisira kukurumidza kuvandudzwa kwenzvimbo dzakaungana dzakakoromoka nemisha iri mumaguta, uye kusimudzira zvine hungwaru kuvandudzwa kwenzvimbo dzekugara dzakare uye kuvandudzwa kwedzimba dzakasakara nedzisina kuvakwa. 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 emudzimba anosanganisira Kima Chemical etc. Coating level, mishonga yechikafu giredhi cellulose ether parizvino inonyanya kuUnited States Dow, Korea Monoshinetsu, South Korea, Ashland, South Korea, Ashland, South Korea, South Korea Loshinetsu, uye South Korea. Kuwedzera kune Anxin chemistry akati wandei anopfuura zviuru gumi matani emabhizinesi, zviuru zvematani easiri-ionic cellulose ether madiki ekugadzira mabhizinesi, mazhinji emabhizinesi madiki aya anogadzira akajairwa emhando yekuvakisa giredhi cellulose ether, uye pasina 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 muChina 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: Kubvumbi-25-2024