Focus on Cellulose ethers

Ka helu helu helu cellulose ether a me nā koi ʻenehana

ʻO Cellulose ka waiwai hou o ka honua. Hele mai ia mai nā mea kanu ʻōmaʻomaʻo a me nā mea kanu submarine a ʻo ia ka mea nui o nā paia o nā mea kanu fiber cell. Ma waho aʻe o ka liʻiliʻi o ka bacteria holoholona a me nā mea ola o ke kai, aia ka cellulose i nā mea kanu ʻōmaʻomaʻo. Ma o photosynthesis, hiki i nā mea kanu ke synthesize 155Gt cellulose i kēlā me kēia makahiki, kahi o 150Mt mai nā mea kanu kiʻekiʻe; ʻO ka cellulose pulp lāʻau ma kahi o 10Mt; pulupulu cellulose 12Mt; kemika (māka) 7Mt o ka cellulose, aʻo ka nui o ka lāʻau (ma kahi o 500Mt o cellulose) e hoʻohana mau ʻia i wahie a lole paha.
ʻOkoʻa ka cellulose kūlohelohe i ka maʻemaʻe. ʻO ka pulupulu ka mea kanu me ka helu cellulose kiʻekiʻe loa ma ke ʻano, a ʻoi aku ka nui o kāna cellulose ma luna o 95%. Hoʻohana mau ʻia ka pulupulu loloa i ka hana lole lole. Ua kapa ʻia ka pulupulu pōkole ʻo Linter pulp, he mea waiwai nui ia no ka hana ʻenehana o nā derivatives cellulose.

Pūʻulu maʻiʻo

ka wela gel°C

inoa code

Maʻiʻo methoxy

%

Hydroxypropoxy maʻiʻo

%

28. 0-30. 0

7.5-12.0

58. 0—64. 0

E

27. 0〜30. 0

4. 0-7.5

62. 0-68. 0

F

16. 5〜20.0

23.0-32.0

68. 0〜75. 0

J

19. 0-24. 0

4. 0—12. 0

70. 0〜90. 0

K

 

papahana

koi koi

MC

HPMC

HEMC

HEC

E

F

J

K

ʻO waho

ʻO ka pauka keʻokeʻo a i ʻole ka melemele māmā, ʻaʻohe mea ʻeleʻele a me nā haumia

Maikaʻi/%W

8.0

Nalo ma ka maloo /% W

6.0

Lehu Sulfated/% W

2.5

10.0

viscosity mPa • s

Māka waiwai viscosity(-10%, +20%)

waiwai pH

5. 0〜9. 0

Ka lawe ʻana/%

80

ka wela gel/°c

50. 0〜55. 0

58. 0〜64. 0

62. 0-68. 0

68.0〜75. 0

70. 0-90. 0

N75.0

 
Pili nā waiwai viscosity no nā viscosity ma ka laulā10000 mPa・s〜1000000 mPa – sbetween cellulose ethers

 

papahana

koi koi

MC HPMC HEMC

HEC

Paʻa wai/%

90.0

Waiwai pahee/nmiW

0.5

ʻokoʻa manawa coagulation hope / minW

360

 

Lakiō o ka ikaika paʻa paʻa/%N

100

 


Ka manawa hoʻouna: Feb-14-2023
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