1. Ingoa Hua:
01. Ingoa matū: hydroxypropyl methylcellulose
02. Ingoa katoa i te reo Ingarihi: Hydroxypropyl Methyl Cellulose
03. Whakapotonga reo Ingarihi: HPMC
2. Āhuatanga ā-tinana me te matū:
01. Te ahua: te paura ma, te paura ma ranei.
02. Rahi matūriki;ko te tere haere o te 100 mata he nui ake i te 98.5%;te tere haere o te 80 mata he nui ake i te 100%.
03. Te wera warowai: 280～300℃
04. Kiato ahua: 0.25～0.70/cm3 (te nuinga o te 0.5g/cm3), te taumaha motuhake 1.26-1.31.
05. Te wera o te tae: 190～200℃
06. Te taunga o te mata: 2% wairewa wai he 42~56dyn/cm.
07. Ka whakarewahia i roto i te wai me etahi whakarewa, penei i te waiwaro/wai, propanol/wai, trichloroethane, me etahi atu i roto i nga waahanga tika.
Ko nga wairewa wai e kaha ana ki te mata.Te maamaatanga teitei, te mahi pumau, te wera o nga hua me nga whakaritenga rereke
He rereke, he rereke te rerekee me te viscosity, te iti iho o te viscosity, te nui ake o te whakarewatanga, te mahinga o nga whakaritenga rereke o te hydroxypropyl methylcellulose (HPMC) he rereke etahi rereke, ko te whakakorenga o te hydroxypropyl methylcellulose (HPMC) i roto i te wai kaore e pa te paanga o te uara PH .
08. Na te hekenga o te ihirangi methoxyl, ka piki ake te ira kiri, ka heke te wairewa wai, ka heke hoki te mahi mata o te hydroxypropyl methylcellulose (HPMC).
09. Hydroxypropyl methylcellulose (HPMC) hoki he kaha thickening, parenga tote, paura pungarehu iti, PH pūmautanga, pupuri wai, pūmautanga ahu, rawa kiriata-hanga pai, me te whānuitanga o te ātete whākōkī, āhuatanga marara pērā i te takoto me te adhesiveness
E toru nga ahuatanga hydroxypropyl methylcellulose (HPMC):
Ka whakakotahihia e te hua te maha o nga ahuatanga o te tinana me te matū kia noho hei hua ahurei me te maha o nga whakamahinga, a ko nga momo ahuatanga e whai ake nei:
(1) Te pupuri wai: Ka taea e ia te pupuri i te wai i runga i nga waahi porous penei i nga papa ciment taiepa me nga pereki.
(2) Te hanga Kiriata: Ka taea e ia te hanga i tetahi kiriata maramara, uaua me te ngawari me te pai o te aukati hinu.
(3) Te wairewa pararopi: Ka whakarewahia te hua ki etahi whakarewa pararopi, penei i te waiwaro/wai, propanol/wai, dichloroethane, me te punaha whakarewa e rua nga whakarewa pararopi.
(4) Ko te waiariki waiariki: Ka whakamahanahia te wairewa wai o te hua, ka hanga he reera, ka waiho ano te reera hei otinga i muri i te whakamatao.
(5) Mahi mata: Whakaratohia te mahi mata i roto i te otinga ki te whakatutuki i te emulsification e hiahiatia ana me te colloid tiaki, me te whakapumautanga o te wahanga.
(6) Whakatarewa: Ka taea e ia te aukati i te rerenga o nga matūriki totoka, na reira ka aukati i te hanganga o te parataiao.
(7) Colloid tiaki: ka taea e ia te aukati i nga rūrūtia me nga matūriki mai i te whakakotahi, te whakakotahi ranei.
(8) Adhesiveness: I whakamahia hei whakapiri mo nga poaka, hua tupeka, me nga hua pepa, he pai te mahi.
(9) Wairewa wai: Ka taea te rewa te hua i roto i te wai i roto i nga rahinga rereke, a ko tona kukū teitei he iti noa i te pokey.
(10) Kore katote inertness: Ko te hua he ether cellulose kore-ionic, e kore e whakakotahi ki te tote konganuku etahi atu katote ranei ki te hanga precipitates insoluble.
(11) Acid-base pūmautanga: pai mo te whakamahi i roto i te whānuitanga o PH3.0-11.0.
(12) Karekau he kakara, karekau e pangia e te paopaotanga;ka whakamahia hei taapiri kai me te raau taero, karekau e whakakorikoria ki te kai, karekau hoki e tuku kaata.
4. Hydroxypropyl methylcellulose (HPMC) tikanga whakakore:
Ina whakapirihia nga hua o te hydroxypropyl methylcellulose (HPMC) ki te wai, ka whakakotahi, ka memeha, engari he tino puhoi, he uaua hoki tenei whakakorenga.E toru nga tikanga whakakore i raro nei, a ka taea e nga kaiwhakamahi te whiriwhiri i te tikanga tino watea kia rite ki ta raatau whakamahinga:
1. Tikanga wai wera: I te mea karekau te hydroxypropyl methylcellulose (HPMC) e memeha ki te wai wera, ko te wahanga tuatahi o te hydroxypropyl methylcellulose (HPMC) ka taea te marara ki te wai wera, katahi ka whakamataohia, e toru He tikanga angamaheni e whakaahuatia ana hei e whai ake nei:
1).Kuhua te nui o te wai wera ki roto i te ipu ka whakamahana ki te 70°C.Āta tāpirihia te hydroxypropyl methylcellulose (HPMC) i raro i te whakaoho puhoi, ka timata te hydroxypropyl methylcellulose (HPMC) ki te rewa i runga i te mata o te wai, katahi ka hanga he slurry, whakamatao i te slurry i raro i te whakaoho.
2).Whakawerahia te 1/3, te 2/3 ranei (te nui e hiahiatia ana) o te wai i roto i te ipu ka whakamahana ki te 70°C.E ai ki te tikanga o te 1), whakamararatia te hydroxypropyl methylcellulose (HPMC) ki te whakarite slurry wai wera Katahi ka tapirihia te toenga o te wai matao, te wai hukapapa ranei ki roto i te ipu, katahi ka tapirihia te slurry wai wera hydroxypropyl methylcellulose (HPMC) ki te te wai matao, me te whakaoho, ka whakamatao i te ranunga.
3).Tuhia he 1/3, 2/3 ranei o te nui o te wai e hiahiatia ana ki roto i te ipu ka whakamahana ki te 70°C.E ai ki te tikanga o te 1), whakamararatia te hydroxypropyl methylcellulose (HPMC) ki te whakarite i te slurry wai wera;Ko te toenga o te wai matao, hukapapa ranei ka taapiri atu ki te wai wera ka whakamataohia te ranunga i muri i te whakaoho.
2. Te tikanga whakaranu paura: ko nga matūriki paura hydroxypropyl methylcellulose (HPMC) me te rite, nui ake ranei o etahi atu mea paura ka tino marara ma te whakamaroke maroke, katahi ka rewa ki te wai, katahi ka rewa te hydroxypropyl methylcellulose Base cellulose (HPMC) kaore he agglomeration. .3. Tikanga makuku whakarewa pararopi: i mua i te marara, i te makuku hydroxypropyl methylcellulose (HPMC) me nga whakarewa pararopi penei i te waihano, te ethylene glycol, te hinu ranei, katahi ka memeha ki te wai.I tenei wa, ka taea hoki te rewa te hydroxypropyl methylcellulose ( HPMC).
5. Nga whakamahinga matua o te hydroxypropyl methylcellulose (HPMC):
Ka taea te whakamahi i te Hydroxypropyl methylcellulose (HPMC) hei whakamatao, hei whakamararatanga, hei whakaemi me te kaihoko kiriata.Ka taea te whakamahi i ona hua-ahumahi ki nga matū o ia ra, ki te hikohiko, ki te kapia waihanga, ki te hanga me te paninga.
1. Whakatarewa polymerization:
I roto i te hanga o nga kapia waihanga penei i te polyvinyl chloride (PVC), te polyvinylidene chloride me etahi atu copolymers, ka whakamahia te polymerization whakatara me te mea tika ki te whakapumau i te aukati o nga monomers hydrophobic i roto i te wai.Hei polymer wairewa-wai, he tino pai nga hua o te hydroxypropyl methylcellulose (HPMC) i te mata me te mahi hei kaihoko tiaki colloidal, ka taea te aukati i te whakahiatotanga o nga matūriki polymer.I tua atu, ahakoa ko te hydroxypropylmethylcellulose (HPMC) he polymer wairewa-wai, he paku whakarewa ano i roto i nga monomers hydrophobic me te whakanui ake i te porosity o nga monomers i puta ai nga matūriki polymeric, kia taea ai e ia te whakarato i nga polymers me te kaha pai ki te tango i te toenga monomers. me te whakarei ake i te whakauru o te plasticizers.
2. I roto i te hanganga o nga rawa hanga, ka taea te whakamahi hydroxypropyl methylcellulose (HPMC) mo:
1).He kaiawhina me te kaitapao mo te riipene whakapiri i runga i te gypsum;
2).Te herenga o nga pereki, nga taera me nga turanga;
3).stucco i runga i te raima;
4).raima-hanganga raima;
5).I roto i te tauira o te peita me te tango peita.
Te wa tuku: Mei-24-2023