Kedu ihe bụ cellulose ethers na gịnị kpatara eji ha?

Cellulose ethers bụ polymers soluble mmiri nke sitere na cellulose, bụ isi ihe nhazi nke osisi. Enwere ọtụtụ ụdị cellulose ethers, nke ọ bụla nwere ihe pụrụ iche na-eme ka ha dị mma maka ngwa dị iche iche.

A na-eji akara nka nke cellulose ethers mee ihe n'ihe niile site na ọgwụ na ihe ịchọ mma na-ewu na mmepụta akwa. Tụkwasị na nke ahụ, a na-eji ha eme ihe dị ka ihe mgbakwunye nri na ndị na-agba agba na agba na mkpuchi.

Ụdị cellulose ethers

Ụdị ethers cellulose atọ a na-ahụkarị bụ hydroxypropylmethylcellulose (HPMC), methylhydroxyethylcellulose (MHEC).

N'ihi ntụgharị ya, HPMC bụ ụdị cellulose ether kacha eji eme ihe. Ọ dị n'ọkwa dị iche iche nwere nha molekụla dị iche iche, ogo nke nnọchi na viscosities. Enwere ike iji HPMC na ngwọta acidic na alkaline, na-eme ka ọ dị mma maka ọtụtụ ngwa.

MHEC yiri HPMC mana ọ nwere ọdịnaya hydroxypropyl dị ala. E jiri ya tụnyere HPMC, okpomọkụ gelation nke MHEC na-adịkarị elu karịa 80 Celsius, dabere na ọdịnaya otu na usoro mmepụta. A na-ejikarị MHEC eme ihe dị ka ihe nkpuchi, ihe nkedo, emulsion stabilizer ma ọ bụ ihe nkiri mbụ.

Cellulose ethers nwere ọtụtụ ojiji n'ihi ihe ha pụrụ iche. Ụfọdụ ojiji a na-ejikarị cellulose ethers gụnyere:

Thickeners: Cellulose ethers nwere ike iji dị ka thickeners maka lubricants, adhesives, oilfield chemicals, nri, ntecha, na ọgwụ.

Ndị na-ekekọta: Enwere ike iji ethers cellulose mee ihe dị ka ihe na-ekekọta na mbadamba nkume ma ọ bụ granules. Ha na-eme ka compressibility nke powders dịkwuo mma ka ha na-ejigide ihe onwunwe dị mma.

Emulsion Stabilizers: Cellulose ethers nwere ike kwụsie ike emulsions site na igbochi coalescence ma ọ bụ flocculation nke gbasasịa na-adọ ụmụ irighiri mmiri. Nke a na-eme ka ha dị mma maka iji na emulsion polymers dị ka agba latex ma ọ bụ adhesives.

Ndị na-eme ihe nkiri: Enwere ike iji cellulose ethers mepụta ihe nkiri ma ọ bụ mkpuchi n'elu. A na-ejikarị ha eme ihe na ngwa owuwu dị ka tile ma ọ bụ akwụkwọ ahụaja nrapado. Ihe nkiri a na-emepụta site na cellulose ethers na-emekarị ka ọ pụta ìhè ma na-agbanwe agbanwe, na-enwe ezigbo nkwụsị mmiri.