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Chii chinonzi hydroxypropyl methyl cellulose?

Hydroxypropyl methyl cellulose (HPMC), inozivikanwawo se hydroxypropyl methylcellulose, cellulose hydroxypropyl methyl ether, cellulose, 2-hydroxypropylmethyl ether, PROPYLENE GLYCOL ETHER OF METHYLCELLULOSE, CAS No. HPMC inogona kukamurwa kuita giredhi rekuvaka, chikafu giredhi uye giredhi remishonga zvinoenderana nekushandiswa kwayo. Inoshandiswa zvakanyanya mukuvaka, chikafu, mishonga uye zvizorwa, makemikari ezuva nezuva uye mamwe maindasitiri.

Ndezvipi zvinoshandiswa zveHPMC?

Indasitiri yekuvaka

1. Masonry dhaka
Kusimbisa kunamatira kune masonry pamusoro kunogona kuwedzera kuchengetwa kwemvura, nekudaro kuvandudza kusimba kwedhaka, nekuvandudza lubricity uye plasticity kubatsira kuita kwekuvaka. Kuvaka kuri nyore kunochengetedza nguva uye kunonatsiridza mutengo wakanaka.
2. Zvigadzirwa zvegypsum
Inogona kurebesa nguva yekushanda yedhaka uye kuburitsa yakakwira mechanical simba panguva yekusimba. Kupfeka kwepamusoro kwepamusoro kunoumbwa nekudzora kuwirirana kwedhaka.
3. Pendi yemvura uye pendi inobvisa
Inogona kurebesa hupenyu hwesherufu nekudzivirira kunaya kwakasimba, uye ine kuenderana kwakanaka uye kugadzikana kwebiological kwakakwira. Kunyungudika kwayo kunokurumidza uye hakusi nyore kuunganidza, izvo zvinobatsira kurerutsa maitiro ekusanganisa. Gadzira maitiro akanaka ekuyerera, anosanganisira yakaderera spatter uye yakanaka kuenzana, ive nechokwadi chekupedza kwepamusoro, uye kudzivirira kupera kwependi. Wedzera viscosity yemvura-yakavakirwa pendi inobvisa uye organic solvent pendi inobvisa, kuitira kuti iyo inobvisa pendi irege kuyerera kubva panzvimbo yebasa.
4. Ceramic tile adhesive
Dry mix ingredients iri nyore kusanganisa uye haina agglomerate, kuchengetedza nguva yekushanda nekuti inoiswa nekukurumidza uye zvinobudirira, kuvandudza processability uye kuderedza mitengo. Kuvandudza kushanda kwetiling uye kupa yakanakisa kunamatira nekuwedzera nguva yekutonhora.
5. Self leveling floor materials
Iyo inopa viscosity uye inogona kushandiswa senge anti kugadzirisa yekuwedzera kubatsira kuvandudza kushanda kwepasi. Kudzora kuchengetwa kwemvura kunogona kuderedza zvakanyanya kutsemuka uye shrinkage.
6. Kugadzirwa kwezvakagadzirwa kongiri slabs
Inokwidziridza kufambiswa kwezvigadzirwa zve extruded, ine yakakwira bonding simba uye lubricity, uye inonatsiridza kunyorova simba uye kunamatira kwemapepa akawedzera.
7. Plate joint filler
Hydroxypropyl methyl cellulose ine yakanakisa kuchengetedza mvura, inogona kuwedzera nguva yekutonhora, uye yakakwira lubricity inoita kuti application iwedzere kutsetseka. Iyo inobudirira inovandudza kunaka kwepamusoro, inopa yakatsetseka uye kunyange kugadzirwa, uye inoita kuti chisungo chiwedzere kusimba.
8. Simende yakavakirwa gypsum
Iine mvura yakakwirira yekuchengetedza, inowedzera nguva yekushanda yedhaka, uye inogonawo kudzora kupinza kwemhepo, nokudaro kubvisa micro cracks yekuputira uye kuumba nzvimbo yakatsetseka.

Indasitiri yezvokudya

1. Canned citrus: kudzivirira kuchena uye kuora nekuda kwekuparara kwecitrus glycosides panguva yekuchengetedza, kuitira kuti uwane maitiro matsva-kuchengetedza.
2. Cold fruit products: yakawedzerwa kune muchero wemuchero uye ice kuitira kuti kunakirwa kuve nani.
3. Sauce: inoshandiswa se emulsion stabilizer kana thickener yemuto uye tomato paste.
4. Mvura inotonhora yekuputira nekupukuta: inoshandiswa kuchengetedza hove dzakaoma nechando kudzivirira kushanduka uye kuparara kwemhando. Mushure mekuputira nekupukuta nemethyl cellulose kana hydroxypropyl methyl cellulose aqueous solution, omesa pachando.
5. Adhesive for tablets: Sechigadziro chekugadzira mahwendefa uye granules, ine zvakanaka "kudonha panguva imwe chete" (kukurumidza kupera, kuparara uye kupararira pakutora).

Pharmaceutical industry

1. Encapsulation: Iyo encapsulation agent inogadzirwa mumhinduro ye organic solvent kana aqueous solution ye tablet administration, kunyanya kupfapfaidza encapsulation yezvimedu zvakagadzirirwa.
2. Retarding agent: 2-3 gramu pazuva, 1-2G nenguva, kwemazuva 4-5.
3. Ophthalmic drug: Sezvo osmotic pressure yemethyl cellulose aqueous solution yakafanana neyemisodzi, hainyanyi kutsamwisa maziso. Inowedzerwa mu ophthalmic drug semafuta ekubata neziso reziso.
4. Jelly: Inoshandiswa sechinhu chekutanga chejelly semishonga yekunze kana mafuta.
5. Ipregnating agent: inoshandiswa seyakakora uye inochengetedza mvura.

Cosmetic industry

1. Shampoo: Kuvandudza viscosity uye bubble kugadzikana kwe shampoo, washing agent uye detergent.
2. Mushonga wemazino: kunatsiridza fluidity yemazino.

Kiln industry

1. Zvishandiso zvemagetsi: semuchina wekudhinda unogadzira adhesive yeceramic electric compactor uye ferrite bauxite magineti, inogona kushandiswa pamwe chete ne1.2-propanediol.
2. Mushonga weglaze: unoshandiswa semushonga unopenya wekeramic uye pamwe chete nependi enamel, inogona kuvandudza kubatana nekugadzirisa.
3. Refractory mortar: Inogona kuwedzerwa kune refractory dhaka rezvidhinha kana kukanda muchoto zvinhu kuvandudza plastiki uye kuchengetedza mvura.

Mamwe maindasitiri

HPMC inoshandiswa zvakanyanya mukugadzira resin, petrochemical, ceramics, bepa kugadzira, matehwe, mvura-based inki, fodya uye mamwe maindasitiri. Iyo inoshandiswa se thickener, dispersant, binder, emulsifier uye stabilizer muindasitiri yemachira.

Nzira yekuona sei kunaka kwehydroxypropyl methyl cellulose (HPMC)?

1. Chromaticity: kunyange isingagoni kuona zvakananga kana HPMC iri nyore kushandisa, uye kana whitening agent yakawedzerwa mukugadzirwa, unhu hwayo huchakanganiswa. Zvisinei, zvigadzirwa zvemhando yepamusoro zvava kuda kutengwa.
2. Fineness: HPMC ine 80 meshes uye 100 meshes zvachose, uye 120 meshes ishoma. MaHPMC mazhinji ane 80 meshes. Kazhinji kutaura, offside fineness iri nani.
3. Light transmittance: isa hydroxypropyl methyl cellulose (HPMC) mumvura kuti iite sparent colloid, wozoona kubuda kwayo kwechiedza. Iyo yakakura iyo mwenje transmittance, zviri nani, zvichiratidza kuti mune shoma isinganyungudika chinhu mairi.
4. Chaiyo giravhiti: Iyo inorema iyo chaiyo giravhiti, zviri nani. Huyero hwakakosha, kazhinji nekuti zvirimo muhydroxypropyl zvakakwirira. Kana zvinyorwa zve hydroxypropyl zvakakwirira, kuchengetwa kwemvura kuri nani.
Hydroxypropyl methyl cellulose yakagadzikana kune acids uye mabhesi, uye mhinduro yayo ine aqueous yakagadzikana muhuwandu hwepH = 2 ~ 12. Isu tiri nyanzvi yekugadzira. Kana uchida chigadzirwa ichi, unogona kutibata. Ndizvo chete zvekugoverana kweHPMC munyaya iyi. Ndinovimba inogona kukubatsira kunzwisisa HPMC.