Focus on Cellulose ethers

Hoʻolauna o Hydroxypropyl methyl cellulose HPMC

1. Nānā nui

ʻO ka Hydroxypropyl Methyl Cellulose (HPMC) he ether cellulose non-ionic i hana ʻia mai ka mea polymer maoli - cellulose ma o ke kaʻina hana kemika.ʻO ka Hydroxypropyl methylcellulose (HPMC) he pauka ʻono ʻole, ʻono ʻole, ʻaʻohe mea ʻawaʻawa, hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu e hana i kahi hopena viscous māmā, nona nā hana o ka mānoanoa, hoʻopaʻa ʻana, hoʻopuehu, emulsifying, film-forming, a me ka suspending , adsorption, gelation, surface activity, moisture retention and protect colloid properties.

Hiki ke hoʻohana ʻia ka Hydroxypropyl methylcellulose (HPMC) i nā mea kūkulu hale, nā uhi, nā resins synthetic, nā seramika, nā lāʻau lapaʻau, nā meaʻai, nā textiles, nā mahiʻai, nā mea hoʻonaninani a me nā ʻoihana paka.
2、ʻO nā kikoʻī a me ka hoʻokaʻawale ʻana Ua māhele ʻia nā huahana i ka wai anuanu ʻano S a me nā ʻano maʻamau
Nā kikoʻī maʻamau oHydroxypropyl Methyl Cellulose

huahana

MC

HPMC

E

F

J

K

Methoxy

maʻiʻo(%)

27.0~32.0

28.0~30.0

27.0~30.0

16.5-20.0

19.0~24.0

 

Degere o ka paniDS

1.7-1.9

1.7-1.9

1.8~2.0

1.1~1.6

1.1~1.6

Hydroxypropoxy

maʻiʻo(%)

 

7.0~12.0

4~7.5

23.0~32.0

4.0~12.0

 

Degere o ka paniDS

 

0.1~0.2

0.2~0.3

0.7-1.0

0.1~0.3

Māmā (Wt%)

≤5.0

Lehu(Wt%)

≤1.0

PHwaiwai

5.0~8.5

ʻO waho

ka pauda keʻokeʻo waiu a i ʻole ka pauka granule keʻokeʻo

ʻO ka maikaʻi

80 poo

viscosity (mPa.s)

ʻike i ka ʻōlelo kikoʻī viscosity

 

 

Hōʻike kikoʻī viscosity

Hōʻike

Laulā viscosity(mpa.s)

Hōʻike

Laulā viscosity(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

3ʻano huahana

Nā Pono: He pauka keʻokeʻo a keʻokeʻo paha kēia huahana, ʻaʻala ʻole, ʻono ʻole aʻona ʻole.

Hiki ke hoʻoheheʻe ʻia i ka wai a me ka mānoanoa: Hiki ke hoʻoheheʻe ʻia kēia huahana i ka wai anuanu e hana ai i kahi hopena viscous akaka.

Hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik: No ka mea aia kekahi mau pūʻulu hydrophobic methoxyl, hiki ke hoʻoheheʻe ʻia kēia huahana i kekahi mau mea hoʻoheheʻe organik, a hiki ke hoʻoheheʻe ʻia i loko o nā solvents i hui pū ʻia me ka wai a me nā mea ola.

Ka pale paʻakai: No ka mea he polymer non-ionic kēia huahana, ʻano paʻa ia i nā hoʻonā wai o nā paʻakai metala a i ʻole nā ​​​​electrolytes organik.

ʻO ka hana ʻili: ʻO ka hoʻonā wai o kēia huahana he hana ma luna, a he mau hana a me nā waiwai e like me ka emulsification, colloid pale a me ke kūpaʻa pili.

Thermal gelation: Ke hoʻomehana ʻia ka wai wai o kēia huahana i kekahi mahana, lilo ia i opaque a hiki i ka hana ʻana i kahi kūlana flocculation (poly), no laila e nalowale ka hopena i kona viscosity.Akā ma hope o ka hoʻoluʻu ʻana, e huli hou ia i ke kūlana hoʻonā kumu.ʻO ka mahana i loaʻa ai ka gelation ma muli o ke ʻano o ka huahana, ka ʻike o ka hopena a me ka wikiwiki o ka hoʻomehana.

Paʻa PH: Paʻa ka viscosity o ka hoʻonā wai o kēia huahana i loko o ka laulā o PH3.0-11.0.

Ka hopena mālama wai: No ka mea he hydrophilic kēia huahana, hiki ke hoʻohui ʻia i ka mortar, gypsum, pena, etc.

Ka paʻa ʻana o ke ʻano: Ke hoʻohālikelike ʻia me nā polymers hiki ke hoʻoheheʻe ʻia i ka wai, ʻo ka hoʻonā wai o kēia huahana he waiwai viscoelastic kūikawā.Hiki i kona hoʻohui ke mālama i ke ʻano o nā huahana ceramic extruded ʻaʻole i loli.

Lubricity: ʻO ka hoʻohui ʻana i kēia huahana hiki ke hōʻemi i ka coefficient friction a hoʻomaikaʻi i ka lubricity o nā huahana ceramic extruded a me nā huahana sima.

Nā waiwai hana kiʻiʻoniʻoni: Hiki i kēia huahana ke hana i kahi kiʻiʻoniʻoni maʻalahi a me ka ʻike me nā waiwai mechanical maikaʻi loa, a he ʻaila maikaʻi a me ka momona.

4.ʻAno kino a me kemika

ʻOi aku ka nui o ka nui: 100 mesh pass rate ʻoi aku ka nui ma mua o 98.5%, 80 mesh pass rate he 100%

ʻO ka mahana carbonization: 280 ~ 300 ℃

ʻIke ʻia ka mānoanoa: 0.25~0.70/cm kikoʻī umekaumaha 1.26~1.31

Ka wela hoʻololi: 190~200 ℃

ʻO ke kuʻekuʻe ʻana o ka ʻili: 2% ka hopena wai he 42 ~ 56dyn/cm

Solubility: Hiki ke hoʻoheheʻe ʻia i loko o ka wai a me kekahi mau mea hoʻoheheʻe, ʻo ka wai hoʻonā he hana ma luna.ʻO ke aniani kiʻekiʻe.Hana paʻa, hoʻololi ka solubility me ka viscosity, ka haʻahaʻa o ka viscosity, ʻoi aku ka nui o ka solubility.

Loaʻa i ka HPMC nā hiʻohiʻona o ka hiki ke mānoanoa, ka paʻakai paʻakai, ka paʻa o ka PH, ka mālama ʻana i ka wai, ke kūpaʻa dimensional, ka waiwai hana kiʻiʻoniʻoni maikaʻi loa, a me ka laulā o ke kūpaʻa enzyme, dispersibility a me ka cohesiveness.

5, ke kumu nui

Hoʻohana nui ʻia ka HPMC papa hana ma ke ʻano he dispersant i ka hana ʻana o ka polyvinyl chloride, a ʻo ia ka mea kōkua nui no ka hoʻomākaukau ʻana i ka PVC ma o ka polymerization suspension.Eia kekahi, hiki ke hoʻohana ʻia e like me ka mānoanoa, stabilizer, emulsifier, excipient, a me ka mea mālama wai i ka hana ʻana i nā petrochemical ʻē aʻe, nā uhi, nā mea kūkulu hale, nā mea hoʻoneʻe pena, nā kemika mahiʻai, nā inika, ka paʻi textile a me ke kala, nā seramika, pepa. , cosmetics, etc. , film forming agent, etc. ʻO ka noi ʻana i nā resins synthetic hiki ke hana i nā huahana i loaʻa i nā ʻano o nā ʻāpana maʻamau a me ka wehe, kūpono i ka gravity kikoʻī a me ka hana hoʻoponopono maikaʻi loa, no laila ke hoʻololi nei i ka gelatin a me ka polyvinyl alcohol e like me nā dispersants.

ʻEono hana hoʻoheheʻe:

(1).E lawe i ka nui o ka wai wela i makemake ʻia, e hoʻokomo i loko o kahi pahu a wela iā ia ma luna o 80 ° C, a hoʻohui mālie i kēia huahana ma lalo o ka hoʻoulu ʻana.Ke lana nei ka cellulose ma ka ʻili wai i ka wā mua, akā ua hoʻopuehu mālie ʻia e hana i kahi slurry like.Hoʻoluʻu ʻia ka hopena i ka wā e hoʻoulu ai.

(2).ʻO kahi ʻē aʻe, e hoʻomehana i ka 1/3 a i ʻole 2/3 o ka wai wela ma luna o 85 ° C, e hoʻohui i ka cellulose e loaʻa ai kahi slurry wai wela, a laila hoʻohui i ke koena o ka wai anuanu, hoʻomau i ka hoʻoulu ʻana, a hoʻomaha i ka hui ʻana.

(3).Maikaʻi ka mesh o ka cellulose, a aia ia ma ke ʻano he mau ʻāpana liʻiliʻi i loko o ka pauka i hoʻoulu ʻia, a hemo koke i ka wā e hui ai i ka wai e hana i ka viscosity i koi ʻia.

(4).E hoʻohui mālie a me ke kaulike i ka cellulose ma ka lumi wela, e hoʻoulu mau ana a hiki i ka hoʻokumu ʻia ʻana o kahi hopena akaka.


Ka manawa hoʻouna: Jan-11-2023
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