Focus on Cellulose ethers

Ozi Hydroxypropyl Methylcellulose

Ozi Hydroxypropyl Methylcellulose

  • Tebulu ọdịnaya:
  • Okwu Mmalite nke Hydroxypropyl Methylcellulose (HPMC)
  • Ọdịdị Chemical na Njirimara
  • Usoro mmepụta
  • Akara ule na nkọwapụta
  • Ngwa
    • 5.1 Ụlọ ọrụ mmepụta ihe
    • 5.2 ọgwụ
    • 5.3 Ụlọ ọrụ nri
    • 5.4 Ngwaahịa nlekọta onwe onye
    • 5.5 Agba na mkpuchi
  • Uru na Uru
  • Ihe ịma aka na oke
  • Mmechi

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1. Okwu Mmalite nke Hydroxypropyl Methylcellulose (HPMC):

Hydroxypropyl Methylcellulose(HPMC), makwaara dị ka Hypromellose, bụ cellulose ether nke sitere na cellulose eke.Ọ bụ polymer dị iche iche nwere ọtụtụ ngwa na ụlọ ọrụ dịka ihe owuwu, ọgwụ, nri, ihe ịchọ mma, na agba.A na-eji HPMC akpọrọ ihe maka akụrụngwa ya pụrụ iche, gụnyere ịgba, njide mmiri, imepụta ihe nkiri, na ike kwụsie ike.

2. Ọdịdị kemịkalụ na Njirimara:

A na-emepụta HPMC site na mgbanwe kemịkalụ nke cellulose, ebe a na-ewebata otu hydroxypropyl (-CH2CHOHCH3) na methyl (-CH3) n'ime ọkpụkpụ cellulose.Ogo nke nnọchi (DS) nke otu ndị a na-emetụta njirimara nke HPMC, gụnyere viscosity, solubility, na gelation omume.HPMC na-abụkarị ntụ ntụ na-acha ọcha ma na-acha ọcha nke na-enweghị isi na enweghị ụtọ.Ọ bụ soluble na mmiri oyi na-etolite uzo, viscous ngwọta.

3. Usoro mmepụta:

Mmepụta nke HPMC gụnyere ọtụtụ usoro, gụnyere cellulose sourcing, etherification, na ọcha:

  • Isi mmalite nke Cellulose: A na-enweta cellulose site na ihe ndị a na-emegharị ọhụrụ dị ka osisi pulp ma ọ bụ owu.
  • Etherification: Cellulose na-enweta etherification na propylene oxide iji webata otu hydroxypropyl, na-esote mmeghachi omume na methyl chloride iji gbakwunye otu methyl.
  • Ọcha: A na-asachapụ cellulose gbanwetụrụ iji wepụ adịghị ọcha na ngwaahịa, na-ebute ngwaahịa HPMC ikpeazụ.

4. Ọkwa na nkọwapụta:

HPMC dị na ọkwa dị iche iche na nkọwapụta ahaziri maka ngwa akọwapụtara.Akara ule ndị a dị iche na akụrụngwa dị ka viscosity, nha urughuru, na ogo nke nnọchi.Nkọwa ndị a na-ahụkarị gụnyere ọkwa viscosity, ọdịnaya mmiri, nkesa nha nha, yana ọdịnaya ntụ.Nhọrọ nke akara HPMC dabere n'ihe achọrọ ịrụ ọrụ nke ngwa ahụ.

5. Ngwa:

5.1 Ụlọ ọrụ ihe owuwu:

N'ebe a na-ewu ihe owuwu, a na-eji HPMC eme ihe n'ọtụtụ ebe dị ka ihe mgbakwunye na ihe ndị sitere na ciment dị ka ngwa agha, plasta, na nrapado tile.Ọ na-eme ka arụ ọrụ dị mma, njide mmiri, adhesion, na sag resistance nke ihe ndị a.

5.2 ọgwụ:

N'ime usoro ọgwụ, HPMC na-eje ozi dị ka ihe nkedo, thickener, ihe nkiri mbụ, na stabilizer na mbadamba nkume, capsules, ngwọta anya, na ude dị n'elu.Ọ na-akwalite nnyefe ọgwụ, mgbasa, na bioavailability.

5.3 Ụlọ ọrụ nri:

A na-eji HPMC n'ọrụ na ụlọ ọrụ nri dị ka onye na-agbakọ, stabilizer, na emulsifier na ngwaahịa dị ka sauces, akwa akwa, ice cream na ngwaahịa esi nri.Ọ na-eme ka ọdịdị ahụ dịkwuo mma, mmetụta ọnụ na nkwụsi ike nke usoro nri.

5.4 Ngwaahịa nlekọta onwe onye:

N'ihe ịchọ mma na ngwaahịa nlekọta onwe onye, ​​HPMC na-arụ ọrụ dị ka onye na-ebu ibu, onye na-akwụsịtụ ihe, ihe nkiri mbụ, na moisturizer na ude, lotions, shampoos na gels.Ọ na-akwalite udidi ngwaahịa, mgbasa, na nkwụsi ike.

5.5 Agba na mkpuchi:

A na-eji HPMC eme ihe na agba, nrapado, na mkpuchi mmiri na-eme ka viscosity dịkwuo elu, nguzogide sag, na mmepụta ihe nkiri.Ọ na-eme ka agba agba agba na-eme ka ọ dịkwuo mma, nhazi ọkwa, na nrapado na ihe ndị dị n'ime.

6. Uru na Uru:

  • Ntughari: HPMC na-enye ọtụtụ ọrụ dị iche iche, na-eme ka ọ dabara maka ngwa dị iche iche n'ofe ụlọ ọrụ.
  • Nkwalite arụmọrụ: Ọ na-eme ka arụmọrụ, nkwụsi ike, na ihe ịchọ mma nke usoro, na-ebute ngwaahịa njedebe dị elu.
  • Nchekwa: HPMC anaghị egbu egbu, ihe na-emebi emebi, yana nchekwa maka ojiji na ngwaahịa ndị ahịa, gụnyere ọgwụ na nri.
  • Ọ dị mfe iji: HPMC dị mfe ijikwa yana itinye n'ime usoro, na-enye aka na nhazi arụmọrụ na nkwụsi ike.

7. Ihe ịma aka na oke:

  • Hygroscopicity: HPMC bụ hygroscopic, nke pụtara na ọ na-amịkọrọ mmiri sitere na gburugburu ebe obibi, nke nwere ike imetụta ikike ya na njikwa ya.
  • PH Sensitivity: Ụfọdụ akara ule HPMC nwere ike igosipụta nghọta maka mgbanwe pH, chọrọ nhazi nhazi nke ọma.
  • Okwu ndakọrịta: HPMC nwere ike imekọrịta ihe na ụfọdụ ihe ma ọ bụ mgbakwunye na nhazi, na-eduga n'okwu ndakọrịta ma ọ bụ ọdịiche arụmọrụ.

8. Nkwubi okwu:

Hydroxypropyl Methylcellulose (HPMC) bụ polymer vasatail nwere ngwa zuru ebe niile na ụlọ ọrụ sitere na ihe owuwu ruo na ọgwụ na nri.Ngwongwo ya pụrụ iche, gụnyere ịgba, njide mmiri, imepụta ihe nkiri, na ikike ime ka ọ dị ike, na-eme ka ọ dị mkpa n'ụdị dị iche iche.Ka ụlọ ọrụ na-aga n'ihu na-emepụta ihe ọhụrụ, a na-atụ anya na ọchịchọ maka HPMC dị elu ga-eto eto, na-ebute ọganihu n'ihu na mmepụta na ngwa ya.


Oge nzipu: Eprel-02-2024
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