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, ka taea te marara tuatahi o te hydroxypropyl methylcellulose (HPMC) ki te wai wera, katahi ka whakamatao, 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, wai tio ranei ka tapirihia 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