1. Tirohanga
Ko te Hydroxypropyl Methyl Cellulose (HPMC) he ether cellulose kore-ionic i hangaia mai i te papanga polymer taiao - cellulose na roto i te raupapa o nga tukanga matū.Ko te Hydroxypropyl methylcellulose (HPMC) he paura karekau, reka, kore-paitini, ka taea te rewa i roto i te wai matao hei hanga i te otinga kikorangi marama, kei a ia nga mahi o te whakapakeke, te honohono, te whakamarara, te whakaemulsifying, te hanga kiriata, me te whakatārewatanga, te whakaurunga, te whakaahuru, te mahi mata, te pupuri makuku me nga taonga colloid tiaki.
Ka taea te whakamahi i te Hydroxypropyl methylcellulose (HPMC) ki nga taonga hanga whare, paninga, kapia waihanga, karaima, rongoa, kai, kakano, ahuwhenua, whakapaipai me nga umanga tupeka
2、Whakaahua hua me te whakarōpūtanga Kua wehea nga hua ki te wai matao wairewa momo S me te momo noa
Whakatakotoranga noa oHydroxypropyl Methyl Cellulose
| hua | MC | HPMC | ||||
| E | F | J | K | |||
| Methoxy | ihirangi（%） | 27.0~32.0 | 28.0~30.0 | 27.0~30.0 | 16.5~20.0 | 19.0~24.0 |
| Te tohu whakakapingaDS | 1.7~1.9 | 1.7~1.9 | 1.8~2.0 | 1.1~1.6 | 1.1~1.6 | |
| Hydroxypropoxy | ihirangi（%） | 7.0~12.0 | 4~7.5 | 23.0~32.0 | 4.0~12.0 | |
| Te tohu whakakapingaDS | 0.1~0.2 | 0.2~0.3 | 0.7~1.0 | 0.1~0.3 | ||
| Makuku（Wt%) | ≤5.0 | |||||
| pungarehu(Wt%) | ≤1.0 | |||||
| Uara PH | 5.0~8.5 | |||||
| Waho | te paura miraka ma te paura kirikiri ma ranei | |||||
| Te pai | 80upoko | |||||
| pokey(mPa.s) | tirohia te whakatakotoranga viscosity | |||||
Whakatakotoranga whakakitenga
| Whakatakotoranga | Awhe pokey(mpa.s) | Whakatakotoranga | Awhe pokey(mpa.s) |
| 5 | 3~9 | 8000 | 7000~9000 |
| 15 | 10~20 | 10000 | 9000~11000 |
| 25 | 20~30 | 20000 | 15000~25000 |
| 50 | 40~60 | 40000 | 35000~45000 |
| 100 | 80~120 | 60000 | 46000~65000 |
| 400 | 300~500 | 80000 | 66000~84000 |
| 800 | 700~900 | 100000 | 85000~120000 |
| 1500 | 1200~2000 | 150000 | 130000~180000 |
| 4000 | 3500~4500 | 200000 | ≥180000 |
3、ahua hua
Āhuatanga: Ko tenei hua he paura ma, he ma-ma ranei, he kore kakara, he kore reka me tekore-paitini.
Te wairewa wai me te kaha whakakaha: Ka taea te rewa tenei hua ki te wai matao hei hanga i te wairewa puataata.
Te whakakore i roto i nga whakarewa pararopi: Na te mea kei roto etahi roopu methoxyl hydrophobic, ka taea te whakakore i tenei hua ki etahi whakarewa pararopi, ka taea hoki te rewa i roto i nga whakarewa i konatunatua ki te wai me te mea pararopi.
Te ātete ki te tote: I te mea he polymer kore-katote tenei hua, he ahua pumau i roto i nga wairewa wai o nga tote whakarewa me nga electrolytes waro.
Mahi mata: Ko te wairewa wai o tenei hua he mahi mata, he mahi me nga ahuatanga penei i te whakaemulsification, te colloid whakamarumaru me te pumau.
Te waiariki waiariki: Ina whakamahana te wairewa wai o tenei hua ki tetahi pāmahana, ka puataata tae noa ki te hanga i te ahua (poly) kapoipoi, kia ngaro te pokey o te otinga.Engari i muri i te whakamatao, ka huri ano ki te ahua otinga taketake.Ko te pāmahana e puta ai te whakaweratanga ka whakawhirinaki ki te momo hua, te kukū o te otinga me te tere o te whakamahana.
PH pūmautanga: Ko te viscosity o te wairewa wai o tenei hua kei roto i te awhe o PH3.0-11.0.
Te whakapumau wai: I te mea he hydrophilic tenei hua, ka taea te taapiri atu ki te kumete, ki te gypsum, ki te peita, me etahi atu hei pupuri i te kaha pupuri wai i roto i te hua.
Te pupuri i te ahua: Ka whakatauritea ki etahi atu polymers wairewa-wai, ko te wairewa wai o tenei hua he ahuatanga viscoelastic motuhake.Ko tana taapiri he kaha ki te pupuri i te ahua o nga hua kirikiri kua whakakorehia kia kore e rereke.
Te whakahinuhinu: Ko te taapiri i tenei hua ka taea te whakaiti i te whakarea waku me te whakapai ake i te whakahinuhinu o nga hua uku me nga hua ciment.
Nga taonga hanga kiriata: Ka taea e tenei hua te hanga i tetahi kiriata ngawari, maramara me nga taonga miihini pai, he pai te hinu me te ngako.
4.Ngā āhuatanga ā-tinana me te matū
Rahi matūriki: 100 te reiti whakawhiti mata he nui ake i te 98.5%, 80 te reiti whakawhiti mata he 100%
Te pāmahana waro: 280~300 ℃
Kiato ahua: 0.25~0.70/cm te taumaha motuhake 1.26~1.31
Te wera o te tae: 190~200 ℃
Te mānukanuka mata: 2% wairewa wai ko 42~56dyn/cm
Wairewa: Ka whakarewahia ki te wai me etahi whakarewa, he mahi mata te wairewa wai.Puataata teitei.Mahinga pumau, ka rereke te whakarewatanga me te pokey, te iti o te pokey, te nui ake o te whakarewatanga.
Kei a HPMC hoki nga ahuatanga o te kaha o te whakakaha, te tote tote, te pumau o te PH, te pupuri wai, te whakapumautanga o te ahua, te tino pai o te hanga kiriata, me te whānuitanga o te aukati i te whaariki, te whakamararatanga me te whakakotahitanga.
5, te kaupapa matua
Ko te HPMC te nuinga o nga waahanga ahumahi e whakamahia ana hei dispersant i roto i te hanga o te polyvinyl chloride, a ko ia te kaihoko awhina matua mo te whakarite i te PVC ma te whakakore i te polymerization.I tua atu, ka taea te whakamahi hei whakamaroke, hei whakapumau, hei emulsifier, hei awhina, hei pupuri i te wai i roto i te hanga o etahi atu petrochemicals, paninga, taonga hanga whare, tango peita, matū ahuwhenua, waituhi, tuhinga kakano me te tae, karaima, pepa. , Paku, me etahi atu, kaihoko hanga kiriata, aha atu. Ko te tono i roto i nga kapia waihanga ka taea e nga hua kua whiwhi i nga ahuatanga o nga matūriki auau me te wewete, te kaha o te kaha me te mahi tukatuka pai, na reira ka whakakapihia te gelatin me te waipiro polyvinyl hei dispersants.
E ono nga tikanga whakakore:
（1）.Tangohia te nui o te wai wera e hiahiatia ana, maka ki roto i te ipu ka whakamahana ki runga ake i te 80°C, me te whakauru i tenei hua i raro i te whakaoho puhoi.Ka rewa te cellulose ki runga i te mata wai i te tuatahi, engari ka marara haere ki te hanga i te puhu rite.I whakamataohia te otinga i te wa e korikori ana.
（2）.Ko te tikanga, whakamahanahia te 1/3, te 2/3 ranei o te wai wera ki runga ake i te 85°C, tāpirihia te cellulose kia whiwhi ai he slurry wai wera, kātahi ka tāpirihia te toenga o te wai matao, me te whakaoho tonu, me te whakamatao i te ranunga hua.
（3）.He tino pai te mata o te cellulose, he matūriki iti takitahi i roto i te paura whakakorikori rite, a ka rewa tere ina tutaki ki te wai hei hanga i te pokey e hiahiatia ana.
（4）.Āta me te taurite te tāpiri i te cellulose ki te pāmahana rūma, me te whakaoho tonu kia puta he otinga maramara.
Wā tuku: Hānuere-11-2023