Focus on Cellulose ethers

Ikhowudi yokuhlelwa kwe-ether ye-cellulose kunye neemfuno zobugcisa

I-Cellulose sesona sixhobo sifumaneka kwindalo esinokuhlaziywa kwakhona kwihlabathi. Ivela kwizityalo eziluhlaza ezisemhlabeni kunye ne-submarine kwaye yeyona nto iphambili kwiindonga zeeseli zezityalo. Ngaphandle kwenani elincinci lebhaktheriya yezilwanyana kunye nezinto eziphilayo eziselwandle, i-cellulose ikhona ikakhulu kwizityalo eziluhlaza. Nge-photosynthesis, izityalo zinokudibanisa i-155Gt cellulose ngonyaka, apho i-150Mt ivela kwizityalo eziphezulu; i-wood pulp cellulose imalunga ne-10Mt; icotton cellulose 12Mt; Ikhemikhali (ibakala) 7Mt yeselulosi, ngelixa ubuninzi beenkuni (malunga ne-500Mt yeselulosi) isasetyenziswa njengamafutha okanye ilaphu.
I-cellulose yendalo iyahluka ngobunyulu. Umqhaphu lusinga lwesityalo olunowona mxholo uphezulu we cellulose kwindalo, kwaye umxholo we cellulose udla ngokuba ngaphezulu kwe 95%. Iindlela ezinde zomqhaphu zisetyenziswa ngokwesiko kwimveliso yelaphu. I-fiber emfutshane ibizwa ngokuba yi-Linter pulp, eyona nto ibalulekileyo kwimveliso yemveliso ye-cellulose derivatives.

Umxholo weqela

ubushushu bejeli°C

igama lekhowudi

Umxholo weMethoxy

%

Umxholo weHydroxypropoxy

%

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

 

iprojekthi

imfuneko yezakhono

MC

HPMC

HEMC

I-HEC

E

F

J

K

Umphandle

Umgubo omhlophe okanye otyheli okhanyayo, akukho masuntswana arhabaxa acacileyo kunye nokungcola

Ukulunga/%W

8.0

Ilahleko ekomisweni /% W

6.0

Uthuthu lweSulfated/% W

2.5

10.0

viscosity mPa • s

Phawula ixabiso le-viscosity (-10%, +20%)

ixabiso pH

5.0〜9. 0

Ugqithiso/%,

80

ubushushu bejeli/°c

50. 0〜55. 0

58. 0〜64. 0

62. 0-68. 0

68.0〜75. 0

70. 0-90. 0

N75.0

 
Amaxabiso e-Viscosity asebenza kwii-viscosities kuluhlu lwe-10000 mPa・s〜1000000 mPa – phakathi kwe-cellulose ethers

 

iprojekthi

imfuneko yezakhono

MC HPMC HEMC

I-HEC

Ugcino lwamanzi/%

90.0

Ixabiso lokutyibilika/nmiW

0.5

Umahluko wexesha lokugqibela lokuhlangana / minW

360

 

I-Tensile Bond Reretation/%N

100

 


Ixesha lokuposa: Feb-14-2023
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