Kugwiritsa ntchito etha ya cellulose ndi kwakukulu kwambiri, ndipo chitukuko chonse cha chuma cha dziko chidzayendetsa mwachindunji chitukuko cha makampani a etha ya cellulose. Pakadali pano, kugwiritsa ntchitoether ya celluloseKu China makamaka kumachitika m'mafakitale monga zipangizo zomangira, kuboola mafuta ndi mankhwala. Pogwiritsa ntchito ndi kukweza cellulose ether m'magawo ena, kufunikira kwa cellulose ether m'mafakitale otsika kudzakula mofulumira.
Kuphatikiza apo, ndalama zambiri zomwe dzikolo laika pa ntchito yomanga zinthu zosasinthika ndi chitukuko cha mphamvu, komanso kumanga mizinda mdzikolo, komanso kuwonjezeka kwa anthu okhala m'nyumba, zaumoyo ndi zina, zonse zidzakhala ndi zotsatira zabwino pa cellulose ether kudzera mu kupanga zipangizo zomangira, kuboola mafuta ndi mafakitale opanga mankhwala. Kukula kwa mafakitale kumabweretsa kukoka kosalunjika.
HPMCZinthu zimagwiritsidwa ntchito makamaka m'magawo osiyanasiyana a chuma cha dziko monga zowonjezera, kotero HPMC ili ndi makhalidwe a kugwiritsidwa ntchito kwakukulu ndi kugwiritsidwa ntchito mosiyanasiyana, ndipo ogwiritsa ntchito otsika mtengo amagula pang'ono. Kutengera makhalidwe a ogwiritsa ntchito mosiyanasiyana pamsika, malonda a zinthu za HPMC nthawi zambiri amatengera chitsanzo cha wogulitsa.
Ma ether a cellulose omwe si a ionic amagwiritsidwa ntchito kwambiri mumakampani opanga mankhwala ngati zinthu zothandizira mankhwala, monga zothina, zosakaniza, ma emulsifiers ndi zinthu zopangira mafilimu. Amagwiritsidwa ntchito popaka filimu ndi zomatira pa mankhwala a mapiritsi, ndipo angagwiritsidwenso ntchito poyimitsa, kukonza maso, kumasula matrix komanso piritsi loyandama, ndi zina zotero. Chifukwa chakuti ether ya cellulose ya pharmaceutical grade ili ndi zofunikira kwambiri pa kuyera kwa chinthu ndi kukhuthala kwake, njira yopangira ndi yovuta kwambiri ndipo pali njira zambiri zotsukira. Poyerekeza ndi mitundu ina ya zinthu za cellulose ether, kuchuluka kwa zinthu zomalizidwa kumakhala kochepa, mtengo wopangira ndi wokwera, ndipo mtengo wowonjezera wa chinthucho ndi wapamwamba kwambiri.
Pakadali pano, zinthu zochokera kumayiko ena zomwe zimachokera ku mankhwala zimayimira 10-20% ya mtengo wa mankhwala onse. Popeza zinthu zochokera ku mankhwala m'dziko langa zinayamba mochedwa ndipo kuchuluka kwake konse kuli kochepa, zinthu zochokera ku mankhwala am'nyumba zimakhala ndi gawo lochepa la mankhwala onse, pafupifupi 2-3%. Zinthu zochokera ku mankhwala zimagwiritsidwa ntchito kwambiri popanga zinthu monga mankhwala, mankhwala a patent aku China ndi zinthu zopangidwa ndi biochemical. Kuyambira 2008 mpaka 2012, mtengo wonse wa mankhwala unali 417.816 biliyoni yuan, 503.315 biliyoni yuan, 628.713 biliyoni yuan, 887.957 biliyoni yuan ndi 1,053.953 biliyoni yuan motsatana. Malinga ndi kuchuluka kwa zinthu zothandizira mankhwala m'dziko langa zomwe zimapangitsa 2% ya mtengo wonse wa mankhwala opangidwa kuchokera ku mankhwala, mtengo wonse wa zinthu zothandizira mankhwala m'dziko muno kuyambira 2008 mpaka 2012 unali pafupifupi mayuan 8 biliyoni, mayuan 10 biliyoni, mayuan 12.5 biliyoni, mayuan 18 biliyoni ndi mayuan 21 biliyoni.
Mu nthawi ya "Ndondomeko ya Zaka Zisanu ndi Ziwiri", Unduna wa Sayansi ndi Ukadaulo unaphatikizapo ukadaulo wofunikira pakupanga zinthu zatsopano zogwiritsira ntchito mankhwala ngati mitu yofufuza. Mu "Ndondomeko ya Zaka Zisanu ndi Ziwiri ya Kupanga Mankhwala" yoperekedwa ndi Unduna wa Zamalonda ndi Ukadaulo wa Chidziwitso, kulimbitsa chitukuko ndi kugwiritsa ntchito zinthu zatsopano zogwiritsira ntchito mankhwala ndi zinthu zolongedza zalembedwa ngati gawo lofunika kwambiri pakukula kwa makampani opanga mankhwala. Mogwirizana ndi cholinga cha kukula kwapakati pachaka kwa 20% mu phindu lonse la makampani opanga mankhwala mu "Ndondomeko ya Zaka Zisanu ndi Ziwiri" ya Unduna wa Zamalonda ndi Ukadaulo wa Chidziwitso, kukula kwa msika wa zinthu zopangira mankhwala kudzakula mofulumira mtsogolo, ndipo nthawi yomweyo kudzalimbikitsa kukula kwa kalasi ya mankhwala.HPMCmsika.
Nthawi yotumizira: Epulo-25-2024