Cellulose etherNdi dzina la mitundu yosiyanasiyana ya zinthu zochokera ku cellulose zachilengedwe (thonje loyengedwa bwino ndi zamkati zamatabwa, ndi zina zotero). Chopangidwacho chimakhala chochokera ku cellulose. Pambuyo pa etherification, cellulose imasungunuka m'madzi, imachepetsa alkali solution ndi organic solvent, ndipo imakhala ndi thermoplasticity. Pali mitundu yambiri ya cellulose ethers, zomwe zimagwiritsidwa ntchito kwambiri popanga zinthu, simenti, utoto, mankhwala, chakudya, mafuta, mankhwala a tsiku ndi tsiku, nsalu, kupanga mapepala ndi zida zamagetsi ndi mafakitale ena. Malinga ndi kuchuluka kwa zinthu zomwe zimagwiritsidwa ntchito m'malo mwake, zitha kugawidwa m'magulu a single ether ndi mixed ether, ndipo malinga ndi ionization, zitha kugawidwa m'magulu a ionic cellulose ether ndi non-ionic cellulose ether. Pakadali pano, zinthu za ionic cellulose ether za ionic cellulose zili ndi ukadaulo wopanga wokhwima, wosavuta kukonzekera, wotsika mtengo, komanso zopinga zochepa zamakampani. Zimagwiritsidwa ntchito kwambiri mu zowonjezera zakudya, zothandizira nsalu, mankhwala a tsiku ndi tsiku ndi madera ena, ndipo ndizo zinthu zazikulu pamsika.
Pakadali pano, ma ether odziwika bwino padziko lonse lapansi ndiCMC, HPMC, MC, HEC, ndi zina zotero. Pakati pawo, CMC ili ndi mphamvu yaikulu kwambiri, yomwe imapanga pafupifupi theka la mphamvu zonse padziko lonse lapansi, pomwe HPMC ndi MC zimapanga pafupifupi 33% ya mphamvu zonse padziko lonse lapansi, ndipoHECNdi pafupifupi 50% ya zomwe zimafunika padziko lonse lapansi. 13% ya zomwe zimafunika pamsika. Chofunikira kwambiri chomwe chimagwiritsidwa ntchito kwambiri ndi sopo wothira mafuta, chomwe chimapanga pafupifupi 22% ya zomwe zimafunika pamsika, ndipo zinthu zina zimagwiritsidwa ntchito kwambiri m'magawo a zipangizo zomangira, chakudya ndi mankhwala.
Mapulogalamu otsika
Kale, chifukwa cha kukula kochepa kwa kufunikira kwa cellulose ether m'dziko langa m'magawo a mankhwala a tsiku ndi tsiku, mankhwala, chakudya, zokutira, ndi zina zotero, kufunikira kwa cellulose ether ku China kunali kwakukulu kwambiri m'munda wa zipangizo zomangira. Mpaka lero, makampani opanga zida zomangira akadali ndi 33% ya kufunikira kwa cellulose ether m'dziko langa. Kufunika kwa cellulose ether m'dziko langa m'munda wa zipangizo zomangira kwakhala kodzaza, ndipo kufunikira kwa mankhwala a tsiku ndi tsiku, mankhwala, chakudya, zokutira, ndi zina zotero kukukulirakulira mofulumira ndi chitukuko cha ukadaulo wogwiritsa ntchito. Mwachitsanzo, m'zaka zaposachedwa, makapisozi a masamba okhala ndi cellulose ether ngati zinthu zazikulu zopangira, ndi nyama yopangidwa, chinthu chomwe chikupangidwa ndi cellulose ether, chili ndi mwayi waukulu wofuna zinthu zambiri komanso malo oti chikule.
Potengera gawo la zipangizo zomangira mwachitsanzo, cellulose ether ili ndi makhalidwe abwino kwambiri monga kukhuthala, kusunga madzi, ndi kuchedwa. Chifukwa chake, cellulose ether yogwiritsidwa ntchito kwambiri pokonza kupanga matope osakanikirana bwino (kuphatikiza matope osakanikirana ndi matope osakanikirana), PVC resin, ndi zina zotero, utoto wa latex, putty, ndi zina zotero, kuphatikizapo magwiridwe antchito a zinthu zomangira. Chifukwa cha kusintha kwa kukula kwa mizinda m'dziko langa, chitukuko chachangu cha makampani omangira, kupititsa patsogolo kosalekeza kwa makina omangira, komanso kufunika koteteza chilengedwe kwa ogula pazinthu zomangira kwapangitsa kuti pakhale kufunikira kwa ma ether a cellulose osakhala a ionic m'munda wa zipangizo zomangira. Munthawi ya 13 ya Dongosolo la Zaka Zisanu, dziko langa linafulumizitsa kusintha kwa mizinda ya m'matauni ndi nyumba zowonongeka, ndikulimbitsa zomangamanga za mizinda, kuphatikiza kufulumizitsa kusintha kwa mizinda ya m'matauni ndi midzi ya m'matauni, kulimbikitsa mwadongosolo kukonzanso kwathunthu kwa nyumba zakale zokhalamo, nyumba zakale zowonongeka ndi malo osakwanira Kukonzanso nyumba ndi zina zambiri. Mu theka loyamba la chaka cha 2021, malo okhala nyumba zatsopano anali 755.15 miliyoni, zomwe zikutanthauza kuwonjezeka kwa 5.5%. Malo omalizidwa a nyumba anali 364.81 miliyoni, zomwe zikutanthauza kuwonjezeka kwa 25.7%. Kubwezeretsedwa kwa malo omalizidwa a nyumba kudzapangitsa kuti pakhale kufunikira kwakukulu m'munda wa zipangizo zomangira za cellulose ether.
Mpikisano wamsika
Dziko langa ndi lomwe limapanga kwambiri cellulose ether padziko lonse lapansi. Pakadali pano, cellulose ether yokhala ndi zinthu zomangira m'nyumba yakhala ikugwiritsidwa ntchito m'deralo. Shandong Heda ndiye kampani yotsogola kwambiri pakupanga cellulose ether ku China. Opanga ena akuluakulu am'nyumba ndi Shandong Ruitai, Shandong Yiteng, ndi North Tianpu Chemical, Yicheng Cellulose, ndi ena. Ma cellulose ether okhala ndi zokutira, mankhwala ndi chakudya pakadali pano amagwiritsidwa ntchito kwambiri ndi makampani akunja monga Dow, Ashland, Shin-Etsu, ndi Lotte. Kuphatikiza pa Shandong Heda ndi makampani ena omwe ali ndi mphamvu zoposa matani 10,000, pali opanga ang'onoang'ono ambiri a non-ionic cellulose ethers okhala ndi mphamvu zokwana matani 1,000. Zakudya zapamwamba komanso mankhwala.
Kutumiza ndi kutumiza kunja kwa ether ya cellulose
Mu 2020, chifukwa cha kuchepa kwa mphamvu zopangira zamakampani akunja chifukwa cha mliri wakunja, kuchuluka kwa ether ya cellulose yotumizidwa kunja mdziko langa kwawonetsa kukula mwachangu. Mu 2020, kutumiza kwa ether ya cellulose kudzafika matani 77,272. Ngakhale kuchuluka kwa kutumiza kunja kwa dziko langaether ya celluloseYakula mofulumira, zinthu zomwe zimatumizidwa kunja makamaka ndi zinthu zomangira cellulose ether, pomwe kuchuluka kwa zinthu zotumizidwa kunja kwa mankhwala ndi chakudya ndi kochepa kwambiri, ndipo mtengo wowonjezera wa zinthu zotumizidwa kunja ndi wotsika. Pakadali pano, kuchuluka kwa zinthu zotumizidwa kunja kwa dziko langa ndi kuwirikiza kanayi kuchuluka kwa zinthu zotumizidwa kunja, koma mtengo wotumizidwa kunja ndi wochepera kawiri kuposa mtengo wotumizidwa kunja. Pankhani ya zinthu zapamwamba, njira yosinthira zinthu zotumizidwa kunja kwa cellulose ether yakunyumba ikadali ndi malo ambiri oti ikule.
Nthawi yotumizira: Epulo-26-2024