1. Nga ahuatanga rereke
Hydroxypropyl methylcellulose: he ma, he ma, he ma, he kirikiri, he paura kowhatu ranei, no etahi momo momo etero whakaurunga cellulose kore-katote.He waerau hangarua, hohekore, viscoelastic.
Hydroxyethyl cellulose: (HEC) he ma, he kowhai marama ranei, he hongi, he kirikiri, he paura totoka kore-paitini, he mea whakarite ma te whakaeera o te cellulose kawakore me te ethylene oxide (te chloroethanol ranei).No nga ethers cellulose wairewa kore-katote.
2. Nga whakamahinga rereke
Hydroxypropyl methylcellulose: Ka whakamahia hei whakamaroke, whakamararatanga me te whakapumau i roto i te umanga whakakikorua, he pai te hototahi ki roto i te wai, i nga whakarewa pararopi ranei.Hei tango peita;hei dispersant i roto i te hanga o te polyvinyl chloride, ko ia te kaihoko awhina matua mo te whakarite o te PVC ma te polymerization whakatārewatanga;Kei te whakamahia nuitia i roto i te hiako, hua pepa, hua me te tiaki huawhenua me te ahumahi pueru.
Hydroxyethyl cellulose: whakamahia hei whakapiri, surfactant, kaihoko tiaki colloidal, dispersant, emulsifier me te dispersion stabilizer, me etahi atu He maha nga momo tono i roto i te paninga, te waituhi, te muka, te tae, te hanga pepa, te whakapaipai, te pesticides, te tukatuka kohuke, te tango hinu. me te rongoa.
3. Te rereke rereke
Hydroxypropyl methylcellulose: He tata kore e rewa i roto i te ethanol tino, ether, me te acetone;ka pupuhi ki roto i te wairewa colloidal maaka, paku pukoro ranei i roto i te wai matao.
Hydroxyethyl cellulose: kei a ia nga ahuatanga o te matotoru, te whakatarewa, te honohono, te whakaemulsifying, te whakamarara, me te pupuri i te makuku.Ka taea te whakarite etahi otinga he rereke nga awhe pokey.He tino pai te whakarewatanga o te tote ki nga electrolytes.
Hydroxypropyl methylcellulose (HPMC) Āhuatanga ā-tinana me te matū:
1. Te ahua: Ko te MC he ma, he tata ma ranei te paura kirikiri, kirikiri ranei, kaore he kakara.
2. Āhuatanga: Ko te MC he tata kore e rewa i roto i te ewaro tino, ether me te acetone.Ka marara, ka pupuhi tere i roto i te wai wera i te 80 ~ 90 ℃, ka tere te rewa i muri i te whakamatao.He tino pumau te wairewa wai i te pāmahana rūma, ka taea te rei i te pāmahana teitei, ka huri te reera me te otinga me te pāmahana.He pai te makuku, te whakamararatanga, te piri, te matotoru, te emulsification, te pupuri wai me nga taonga hanga kiriata, me te koretake ki te hinu.Ko te kiriata i hangaia he tino pakari, he ngawari me te marama.No te mea he katote-kore, ka taea te hototahi ki etahi atu emulsifiers, engari he ngawari ki te tote, ka pumau te otinga ki te awhe o PH2-12.
3. Kiato ahua: 0.30-0.70g/cm3, kiato ko e pā ana ki 1.3g/cm3.
2. Tikanga Whakarewa:
Ko te hua MC ka honoa tika ki te wai, ka whakahiato, ka memeha, engari he tino puhoi, he uaua hoki tenei whakakorenga. Ko nga tikanga whakakorenga e toru e whai ake nei ka whakaarohia, ka taea e te kaiwhakamahi te whiriwhiri i te tikanga tino watea kia rite ki te ahuatanga o te whakamahinga:
1. Tikanga wai wera: I te mea kaore te MC e memeha i roto i te wai wera, ka taea te marara o te MC ki te wai wera i te wa tuatahi.Ka whakamataohia i muri mai, ka whakaahuahia nga tikanga e rua e whai ake nei:
1).Kuhua te nui o te wai wera ki roto i te ipu ka whakamahana ki te 70°C.Taapirihia te MC i raro i te ohooho puhoi, ka timata ki te rewa ki runga i te mata o te wai, katahi ka hangai he slurry, ka whakamatao i te slurry i raro i te whakaohooho.
2).Tuhia te 1/3, 2/3 ranei o te nui o te wai e hiahiatia ana ki roto i te ipu ka whakamahana ki te 70 ℃.A pee i te tikanga o 1) ki te whakamararatia MC ki te whakarite slurry wai wera;katahi ka tapirihia te toenga o te wai matao, te wai tio ranei ki roto i te wai wera, whakamataohia te ranunga i muri i te whakaoho.
2. Te tikanga whakaranu i te paura: Whakaranuhia nga matūriki paura MC ki te rite, nui atu ranei o etahi atu mea paura kia tino marara ma te whakaranu maroke, katahi ka tapirihia he wai kia memeha, katahi ka taea te rewa te MC me te kore e whakahiato.
3. Tikanga makuku whakarewa pararopi: i mua i te whakamakuku, i te whakamakuku ranei i te MC me te whakarewa pararopi, penei i te ethanol, te ethylene glycol, te hinu ranei, katahi ka taapirihia te wai kia memeha, katahi ka taea te rewa pai te MC i tenei wa.
3. Te kaupapa:
Ko tenei hua e whakamahia nuitia ana i roto i te hanga whare, i nga mea hanga whare, i nga paninga marara, i nga pepa pepa pepa, i nga taapiri polymerization, i nga tangohanga peita, i te hiako, i te waituhi, i te pepa, me era atu ano he mea whakamaroke, he whakapiri, he taputapu pupuri wai, he kaiwhakatangi kiriata, he taonga, he aha atu. Hei tauira, ka whakamahia hei kaapiri, hei whakakoi me te pupuri wai i roto i nga taonga hanga whare, hei kaiwhakatangi kiriata me te whakakoi i roto i te umanga whakakikorua, a ka whakamahia nuitia i roto i nga mara penei i te keri hinu me te umanga matū o ia ra. .
Ko nga ahuatanga o te tinana me te matū o te methyl cellulose (MC):
3. Te ahua: Ko te MC he ma, he tata ma te kiri, he paura kirikiri ranei, kaore he kakara.
Ngā Āhuatanga: Ko te MC he tata kore e rewa i roto i te tino waihā, te etera me te acetone.Ka marara, ka pupuhi tere i roto i te wai wera o te 80~90> ℃, ka tere te rewa i muri i te whakamatao.He tino pumau te wairewa wai i te pāmahana noa, ka taea te reera i te wera nui, ka huri te reera me te otinga me te pāmahana.He pai te makuku, te whakamararatanga, te piri, te matotoru, te emulsification, te pupuri wai me nga taonga hanga kiriata, me te koretake ki te hinu.Ko te kiriata i hangaia he tino pakari, he ngawari me te marama.No te mea he katote-kore, ka taea te hototahi ki etahi atu emulsifiers, engari he ngawari ki te tote, ka pumau te otinga ki te awhe o PH2-12.
1.Apparent kiato: 0.30-0.70g/cm3, kiato ko e pā ana ki 1.3g/cm3.
Atu.Tikanga Whakarewa:
MC> Ko te hua ka taapiri tika ki te wai, ka whakahiato, ka memeha, engari he tino puhoi me te uaua tenei whakangao.Ko nga tikanga whakakore e toru e whai ake nei e whakaarohia ana, a ka taea e nga kaiwhakamahi te whiriwhiri i te tikanga tino watea i runga i nga tikanga whakamahi:
1. Tikanga wai wera: I te mea kaore te MC e memeha i roto i te wai wera, ka taea te marara o te MC ki te wai wera i te wa tuatahi.Ka whakamataohia i muri mai, ka whakaahuahia nga tikanga e rua e whai ake nei:
1).Kuhua te nui o te wai wera ki roto i te ipu ka whakamahana ki te 70°C.Taapirihia te MC i raro i te ohooho puhoi, ka timata ki te rewa ki runga i te mata o te wai, katahi ka hangai he slurry, ka whakamatao i te slurry i raro i te whakaohooho.
2).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.A pee i te tikanga i roto i te 1) ki te marara MC ki te whakarite i te slurry wai wera;katahi ka tapirihia te toenga o te wai matao, te wai tio ranei ki roto i te wai wera, whakamataohia te ranunga i muri i te whakaoho.
Te tikanga whakaranu paura: whakamaroke te whakaranu i nga matūriki paura MC me te rite, nui atu ranei o etahi atu paura paura hei tino marara, katahi ka tapirihia he wai hei memeha, katahi ka rewa te MC me te kore e whakahiato.
3. Tikanga makuku whakarewa pararopi: whakamararatia, whakamakuku ranei i te MC ki te whakarewa pararopi, penei i te waihano, te ethylene glycol, te hinu ranei, katahi ka tapirihia he wai hei memeha.Na ka taea hoki te rewa pai te MC.
Rima.Kaupapa:
Ko tenei hua e whakamahia nuitia ana i roto i te hanga whare, i nga mea hanga whare, i nga paninga marara, i nga pepa pepa pepa, i nga taapiri polymerization, i nga tangohanga peita, i te hiako, i te waituhi, i te pepa, me era atu ano he mea whakamaroke, he whakapiri, he taputapu pupuri wai, he kaiwhakatangi kiriata, he taonga, he aha atu. Hei tauira, ka whakamahia hei kaapiri, hei whakakoi me te pupuri wai i roto i nga taonga hanga whare, hei kaiwhakatangi kiriata me te whakakoi i roto i te umanga whakakikorua, a ka whakamahia nuitia i roto i nga mara penei i te keri hinu me te umanga matū o ia ra. .
1. Ahumahi hanga: Hei kaihoko pupuri wai me te aukati o te kumete ciment, ka taea e te moata te pupuhi.Ka whakamahia hei here mo te raima, te raima, te paura putty me etahi atu mea hanga whare hei whakapai ake i te horahanga me te whakaroa i te waa mahi.Ka taea te whakamahi ki te whakapiri i nga taera karaera, te mapere, te whakapaipai kirihou, te whakapiri whakarei, ka taea hoki te whakaiti i te nui o te ciment.Ko nga waahi pupuri wai o te HPMC ka aukati i te pupuhi mai i te pakaru na te tere rawa o te whakamaroke i muri i te tono, me te whakarei ake i te kaha i muri i te whakapakeke.
2. Te ahumahi hanga karamiki: e whakamahia nuitia ana hei here i roto i te hanga o nga hua uku.
3. Te ahumahi peita: Ka rite ki te thickener, dispersant me te stabilizer i roto i te ahumahi peita, he pai te hototahi i roto i te wai whakarewa organic ranei.Hei tango peita.
4. Te tuhi waituhi: Ka rite ki te thickener, dispersant me te stabilizer i roto i te ahumahi mangumangu, he pai hototahi i roto i te wai whakarewa organic ranei.
5. Plastics: whakamahia rite mod release agents, softeners, lubricants, etc.
6. Polyvinyl chloride: Kei te whakamahia hei dispersant i roto i te hanga o te polyvinyl chloride me te tino awhina awhina mo te whakarite i te PVC ma te whakakore i te polymerization.
7. Ētahi atu: Kei te whakamahia whānuitia tenei hua i roto i te hiako, hua pepa, hua me te tiaki huawhenua me ahumahi pueru.
8. Te ahumahi rongoa: nga taonga whakakikorua;rauemi kiriata;nga rauemi polymer tere-tere mo nga whakaritenga tuku puhoi;whakapūmau;nga kaihoko whakatārewa;nga here papa;whakapouri.Nga kino mo te hauora: he haumaru tenei hua me te kore-paitini, ka taea te whakamahi hei taapiri kai , Kaore he wera, kaore he pawera ki te kiri me te whakapiri mucous membrane.Ko te tikanga he haumaru (FDA1985), ko te 25mg/kg te kai e whakaaetia ana mo ia ra (FAO/WHO 1985), me mau nga taputapu tiaki i te wa e mahi ana.
Te paanga o te taiao: A ape i te maka matapōkeretia kia poke te hau i te puehu rere.
Nga morearea a-tinana me te matū: Kati te pa atu ki nga puna ahi, ka karo i te hanga o te nui o te puehu i roto i te taiao kati hei aukati i nga aitua pahū.
Ko tenei mea ka whakamahia noa hei whakamaroke, kaore e pai mo te kiri.
Wā tuku: Noema-24-2021