Ko te Hydroxypropyl methylcellulose (HPMC) he mea nui hei whakauru i te ether, he pūmua wairewa-kore-katote, ā, e whakamahia whānuitia ana i roto i te kai, te rongoā, te ahumahi matū o ia rā, te paninga, te tauhohenga pūmua me te hanganga hei whakatārewatanga marara, hei whakamātotoru, hei whakaemulsifying, hei whakaū me te whakapiripiri, ā, he nui te āputa i roto i te mākete o-rohe.
E whakamahia whānuitia ana te Hydroxypropyl methylcellulose i roto i te umanga hanga hei kaihanga kiriata, hei here, hei whakamarara, hei whakaū, hei whakamātotoru, hei whakatairanga wai, ā, kua noho hei hua rongonui kua arohia mai i tōna whakarewatanga.
Hydroxypropylmethylcellulose
Ingoa katoa o te reo Pākehā: Hydroxypropyl Methyl Cellulose Whakarāpopototanga o te reo Pākehā: HPMC
Nā te mea he pai ngā āhuatanga o te HPMC pērā i te whakamātotoru, te whakaemulsification, te hanga kiriata, te colloid tiaki, te pupuri makuku, te piri, te ātete ki ngā whākōkī me te kore e taea te whakamahi i te pākia, he whānuitia te whakamahinga i roto i ngā paninga, ngā tauhohenga polymerization, ngā rauemi hanga, te hanga hinu, ngā kakahu, te kai, te rongoā, ngā uku o ia rā, ngā taputapu hiko me ngā purapura ahuwhenua me ētahi atu tari.
ngā rauemi hanga whare
I roto i ngā rauemi hanga, ka tāpirihia te HPMC, te MC rānei ki te sima, te moata, me te moata hei whakapai ake i ngā āhuatanga hanga me te pupuri wai.
Ka taea te whakamahi hei:
1). He mea whakapiri me te mea whakakī mō te rīpene piri e hangai ana ki te gypsum;
2). Te herenga o ngā pereki, ngā taera me ngā turanga i hangaia ki te sima;
3). He mea hanga ki te papa paraikete;
4). Pāreti hanganga i hangaia ki te sima;
5). I roto i te tauira o te peita me te tango peita.
Piripiri mō ngā taera uku
Ngā wāhanga HPMC 15.3
Perlite 19.1 ngā wāhanga
Ngā amide ngako me ngā pūhui thio hurihuri 2.0 ngā wāhanga
Uku 95.4 ngā wāhanga
Te kakara silica (22μ) 420 ngā wāhanga
450.4 ngā wāhanga wai
Whakamahia ana i roto i te sima e honoa ana ki ngā pereki, ngā taera, ngā kōhatu, te sima rānei kāore i te waro:
HPMC (tohu marara 1.3) 0.3 wāhanga
Sima Cattelan 100 ngā wāhanga
Oneone hiraka 50 ngā wāhanga
50 ngā wāhanga wai
Whakamahia hei tāpiri rauemi hanga sima kaha-teitei:
Sima Cattelan 100 ngā wāhanga
Āpihopa 5 ngā wāhanga
Te whakatikatika waipiro polyvinyl 1 wāhanga
Konupūmā silicate 15 ngā wāhanga
Uku 0.5 ngā wāhanga
32 ngā wāhanga wai
Ngā wāhanga HPMC 0.8
Ahumahi peita
I roto i te umanga peita, ko te HPMC te nuinga o te wā e whakamahia ana i roto i te peita rapa me ngā wāhanga peita kapia wairewa-wai hei kaihanga kiriata, hei whakamātotoru, hei whakaemulsifier me hei whakaū.
Te Whakapūhui Whakatārewatanga o te PVC
Ko te mara e nui rawa ana te whakamahi i ngā hua HPMC i tōku whenua ko te whakapūhuitanga whakatārewatanga o te vinyl chloride. I roto i te whakapūhuitanga whakatārewatanga o te vinyl chloride, ka pā tika te pūnaha marara ki te kounga o te kapia PVC hua me ōna tukatuka me ngā hua; ka taea e ia te whakapai ake i te pumau wera o te kapia me te whakahaere i te tohatoha rahi matūriki (arā, te whakarite i te kiato o te PVC). Ko te nui o te HPMC e 0.025% ~ 0.03 o te % putanga PVC.
Ko te kapia PVC i hangaia mā te HPMC kounga teitei, me te whakarite kia tutuki te mahi ki te paerewa ā-motu, he pai hoki ngā āhuatanga ā-tinana, he pai ngā āhuatanga matūriki, ā, he pai hoki te whanonga rheological rewa.
ētahi atu umanga
Ko ētahi atu ahumahi ko ngā mea whakapaipai, te hanga hinu, ngā hopi horoi, ngā mea uku whare me ētahi atu ahumahi.
wairewa
Ko te HPMC tētahi o ngā pūmua wairewa-wai, ā, ko tōna wairewatanga wai e pā ana ki te nui o te rōpū methoxyl. Ina iti te nui o te rōpū methoxyl, ka taea te wairewa ki roto i te kawakore kaha, ā, kāore he pūwāhi whakawera wera. Mā te pikinga ake o te nui o te methoxyl, ka tairongo ake ki te pupuhi wai, ā, ka wairewa ki roto i te kawakore waimeha me te kawakore ngoikore. Ina neke atu i te 38C te nui o te methoxyl, ka taea te wairewa ki roto i te wai, ā, ka taea hoki te wairewa ki roto i ngā warowaihā halogenated. Mēnā ka tāpirihia te waikawa ā-wā ki te HPMC, ka tere te marara o te HPMC ki roto i te wai, me te kore e puta he matū whakakoi kore-wairewa. Ko te take nui o tēnei ko te mea he rōpū dihydroxyl kei roto i te waikawa ā-wā i te tūranga ortho i runga i te glycogen marara.
Wā tuku: Mei-30-2023