1. He aha te tino whakamahinga o te hydroxypropyl methylcellulose?
Kei te whakamahia nuitia te HPMC ki nga taonga hanga whare, paninga, kapia waihanga, karamu, rongoa, kai, kakano, ahuwhenua, whakapaipai, tupeka me etahi atu ahumahi. Ka taea te wehewehea te HPMC ki te reanga ahumahi, te karaehe kai me te tohu rongoa e ai ki tana whakamahinga.
2. He maha nga momo hydroxypropyl methylcellulose. He aha nga rereketanga i waenga i a raatau?
Ka taea te wehewehea te HPMC ki te momo inamata (te tohu tohu "S") me te momo wera-wairewa. Ka tere marara nga momo momo hua i roto i te wai matao ka ngaro ki te wai. I tenei wa, karekau he poiketa o te wai na te mea ka marara noa te HPMC ki te wai, kaore he otinga tuturu. I muri i te 2 meneti, ka piki haere te pokey o te wai, ka puta mai he colloid pokarekare. Ko nga hua wera-wairewa, i roto i te wai matao, ka tere te marara i roto i te wai wera ka ngaro ki te wai wera. Ka heke te pāmahana ki tetahi pāmahana (e ai ki te pāmahana reera o te hua), ka puhoi te pokey tae noa ki te hanga i tetahi colloid maramara me te kirikiri.
3. He aha nga tikanga otinga hydroxypropyl methylcellulose?
1. Ka taea te taapiri i nga tauira katoa ki te rauemi ma te whakaranu maroke;
2. Me whakauru tika ki te wairewa wai mahana. He pai ake te whakamahi momo whakamararatanga wai matao. I muri i te taapiri, ka tae ki te matotoru i roto i te 10-90 meneti (whakaoho, whakaoho, whakaoho)
3. Mo nga tauira noa, whakaohokia me te marara ki te wai wera i te tuatahi, katahi ka tapirihia te wai matao kia memeha i muri i te whakaoho me te whakamatao.
4. Mena ka tupu te whakahiato, te takai ranei i te wa e memeha ana, na te mea he iti rawa te whakakorikori, he taapiri tika ranei te tauira noa ki te wai matao. I tenei wa, hohoro te whakaoho.
5. Mena ka puta nga mirumiru i te wa o te whakakorenga, ka waiho mo te 2-12 haora (ko te waa motuhake ka whakawhirinaki ki te rite o te otinga) ka tangohia ranei e te tangohanga korehau, te pehanga, me etahi atu, ka taea hoki e te nui o te kaihoko whakakore. ka tapirihia.
4. Me pehea te whakatau i te kounga o te hydroxypropyl methylcellulose ngawari me te ngawari?
1. Maama. Ahakoa e kore e taea e te ma ma te whakatau he pai te HPMC, kaore ranei, me te taapiri atu i nga maakiri ma i te wa o te mahi whakaputa ka pa ki tona kounga, ko te nuinga o nga hua pai he pai te ma.
2. Pai: Ko te pai o te HPMC ko te 80 mesh me te 100 mesh, kei raro iho i te 120, he pai ake te pai.
3. Whakawhiti marama: Hangaia e HPMC he colloid maramara i roto i te wai. Titiro ki te whakawhiti marama. Ko te nui ake o te whakawhiti marama, ko te pai ake o te uruhanga, ko te tikanga he iti ake nga matū korekore i roto. I te nuinga o te wa he pai te reactor poutū, a ka tukuna e te reactor whakapae etahi. Engari kaore e taea te kii he pai ake te hanga o nga kettle poutū i tera o nga kettle whakapae. He maha nga mea e whakatau ana i te kounga o nga hua.
4. Te taumahatanga motuhake: Ko te nui ake o te taumahatanga motuhake, ko te taumaha ka pai ake. Ko te nui ake o te taumaha motuhake, ko te teitei ake o te ihirangi hydroxypropyl. Ko te tikanga, ko te teitei o te ihirangi hydroxypropyl, ko te pai ake o te pupuri wai.
5. E hia te hydroxypropyl methylcellulose e whakamahia ana ki te paura putty?
Ko te nui o te HPMC e whakamahia ana i roto i nga tono tuuturu he rereke mai i tetahi waahi ki tetahi waahi, ko te tikanga, kei waenga i te 4-5 kg, i runga i te taiao o te rangi, te pāmahana, te kounga o te pungarehu konupūmā o te rohe, te tauira paura putty me nga whakaritenga kounga o te kaihoko.
6. He aha te pokey o te hydroxypropyl methylcellulose?
Ko te paura Putty te utu mo te RMB 100,000, engari he nui ake nga whakaritenga mo te moata. He RMB 150,000 te utu kia ngawari ki te whakamahi. Ano, ko te mahi nui ake a HPMC ko te pupuri i te wai, whai muri mai i te whakamatotoru. I roto i te paura putty, i te mea he pai te pupuri wai me te iti o te pokey (7-8), ka taea hoki. O te akoranga, te nui te pokey, te pai te pupuri wai whanaunga. I te wa i runga ake i te 100,000 te viscosity, he iti te paanga o te viscosity ki te pupuri wai.
7. He aha nga tohu hangarau matua o te hydroxypropyl methylcellulose?
Te ihirangi Hydroxypropyl
ihirangi Methyl
pokey
Te pungarehu
mate taimaha maroke
8. He aha nga mea matua o te hydroxypropyl methylcellulose?
Ko nga rauemi mata matua o te HPMC: te miro para, te methyl chloride, te propylene oxide, etahi atu rauemi mata, te houra caustic, me te toluene waikawa.
9. Ko te tono me te mahi matua o te hydroxypropyl methylcellulose i roto i te paura putty, he matū?
I roto i te paura putty, e toru nga mahi nui: te whakapakeke, te pupuri wai me te hanga. Ka taea e te matotoru te whakapakeke i te cellulose me te mahi i te mahi whakatarewa, te pupuri i te ahua o te otinga ki runga, ki raro, me te aukati i te paheketanga. Te pupuri wai: Kia ata whakamaroke te paura putty me te awhina i te konupūmā hina ki te tauhohe i raro i te mahi a te wai. Te Mahi: Ko te Cellulose he whakahinuhinu, he pai te mahi o te paura putty. Karekau a HPMC e uru ki roto i nga tauhohenga matū me te mahi tautoko anake.
10. Ko te Hydroxypropyl methylcellulose he ether cellulose kore-ionic, na he aha te momo kore-katote?
Ko te tikanga, karekau nga matū kore e uru ki nga tauhohenga matū.
Ko te CMC (carboxymethylcellulose) he cellulose cationic, ka huri hei para tofu ina pa ana ki te pungarehu konupūmā.
11. He aha te paanga o te reera o te hydroxypropyl methylcellulose ki te aha?
Ko te mahana o te reera o te HPMC e pa ana ki tona ihirangi methoxyl. Ko te iti ake o te methoxyl, ka teitei ake te pāmahana reera.
12. He hononga kei waenganui i te paura putty me te hydroxypropyl methylcellulose?
He mea nui tenei! He ngoikore te pupuri wai o te HPMC, ka pau te paura.
13. He aha te rereketanga o te tukanga whakaputa i waenga i te wairewa wai matao me te otinga wai wera o te hydroxypropyl methylcellulose?
HPMC momo wai-wairewa matao ka tere marara i roto i te wai matao i muri i te maimoatanga mata ki te glyoxal, engari e kore e tino memeha. Ka piki te viscosity, ara, ka memeha. Ko te momo rewa wera kaore i te rongoa i te mata ki te glyoxal. He nui te rahi o te Glyoxal, he tere te marara, engari he puhoi te pokey me te iti o te rōrahi, me te rereke.
14. He aha te haunga o te hydroxypropyl methylcellulose?
Ko te HPMC i hangaia e te tikanga whakarewa ka hangaia ki te toluene me te waipiro isopropyl hei whakarewa. Ki te kore e pai te horoi, ka toe etahi kakara. (Ko te whakakore me te hangarua he tukanga matua mo te hongi)
15. Me pehea te whiriwhiri i te hydroxypropyl methylcellulose e tika ana mo nga whakamahinga rereke?
Putty paura: nga whakaritenga pupuri wai teitei me te pai o te hanga hanga (tohu tohu: 7010N)
Moata hanga sima noa: te pupuri i te wai teitei, te parenga teitei o te pāmahana, te pokey inamata (koeke e taunakitia ana: HPK100M)
Te tono whakapiri hanga: hua inamata, te pokey teitei. (Waitohu Manakohia: HPK200MS)
Moata gypsum: te pupuri wai teitei, te pokey reo-iti, te pokey inamata (koeke e taunakitia ana: HPK600M)
16. He aha te ingoa o te hydroxypropyl methylcellulose?
Ko te HPMC, ko te MHPC ranei e mohiotia ana ko te hydroxypropyl methylcellulose me te hydroxypropyl methylcellulose ether.
17. Te tono hydroxypropyl methylcellulose ki te paura putty. He aha te paura putty ka pahuka?
E toru nga mahi nui a HPMC i roto i te paura putty: te whakamatotoru, te pupuri wai me te hanga. Ko nga take o nga mirumiru ko:
1. He nui rawa te taapiri wai.
2. Ki te kore te raro i maroke, ma te wiriwiri i tetahi atu paparanga o runga ka ngawari te opupu.
18. He aha te rereketanga i waenga i te hydroxypropyl methylcellulose me te MC:
Ko te MC, ko te methyl cellulose, he mea hanga mai i te miro parakore i muri i te maimoatanga kawakore, ma te whakamahi i te methane chloride hei kaihoko etherifying, me te raupapa tauhohenga hei whakaputa i te cellulose ether. Ko te tohu whakakapinga whanui he 1.6-2.0, he rereke ano te whakarewatanga o nga nekehanga rereke o te whakakapi. He ether cellulose kore-katote.
(1) Ko te pupuri wai o te methylcellulose e whakawhirinaki ana ki te nui o te taapiri, te pokey, te pai o te matūriki me te tere memeha. I te nuinga o te korero, he nui te taapiri, he iti te pai, he teitei te pokey, he nui te reeti pupuri wai. Ko te nui o te taapiri he nui te awe ki runga i te reiti pupuri wai, a, karekau he hononga o te pokey ki te reiti pupuri wai. Ko te tere o te whakakore i te nuinga ka whakawhirinaki ki te tohu whakarereke mata me te pai o te matūriki o nga matūriki cellulose. I roto i nga ethers cellulose i runga ake nei, ko te methylcellulose me te hydroxypropylmethylcellulose he teitei ake te reiti pupuri wai.
(2) Ka taea te rewa te Methyl cellulose i roto i te wai matao, engari ka uaua ki te rewa i roto i te wai wera. He tino pumau tona otinga wai i roto i te awhe pH=3-12, a he pai te hototahi ki te māngaro me te maha o nga surfactants. Ka tae te pamahana ki te reera Ka piki ake te wera o te wai, ka puta te wai.
(3) Ko nga huringa pāmahana ka tino pa ki te reiti pupuri wai o te methylcellulose. Ko te tikanga, ko te teitei ake o te pāmahana, ko te kino te tere o te pupuri wai. Mena ka neke ake te pāmahana moata ki te 40 nga nekehanga, ka tino paheke te pupuri wai o te methylcellulose, ka tino pa ki te hanga o te moata.
(4) He nui te paanga o te Methylcellulose ki te hanga me te piri o te moata. Ko te adhesion i konei e pa ana ki te apititanga i rongohia i waenga i te taputapu tono a te kaimahi me te papanga turanga pakitara, ara, te parenga kutikuti o te moata. He tiketike te adhesiveness, he tiketike te parenga kutikuti o te moata, me te kaha e hiahiatia ana e nga kaimahi i te wa e whakamahia ana he tiketike ano hoki, na reira he kino te mahi hanga o te moata.
Te wa tuku: Hanuere-31-2024