Mmetụta Methyl Hydroxyethyl Cellulose na Epoxy Resin Matrix

Methyl Hydroxyethyl Cellulose (MHEC) bụ cellulose ether na-agbaze mmiri nke a na-ejikarị eme ihe na ụlọ ọrụ ihe owuwu dị ka ihe na-eme ka ọkpụkpụ na rheology modifier na usoro cimentious. A maara na ọ na-emeziwanye ihe ndị na-asọ asọ, ịrụ ọrụ, na nrapagidesi ike nke ihe cementitious, na-eme ka ọ bụrụ ihe mgbakwunye dị mma maka nhazi, ngwa ngwa, na grout. Otú ọ dị, mmetụta MHEC na ihe onwunwe nke epoxy resin matrices enwetala nlebara anya dị nta.

Epoxy resins bụ klaasị polymers na-ekpo ọkụ nke a na-ejikarị eme ihe na mbara igwe, ụgbọ ala, na ụlọ ọrụ ihe owuwu n'ihi njirimara ọrụ ha dị mma, nguzogide kemịkalụ, na nrapado na ihe dị iche iche. Otú ọ dị, ha nwere ike ịdị nro ma gosipụta ike mmetụta dị ala, nke na-egbochi ojiji ha na ngwa ụfọdụ. Iji dozie okwu a, ndị na-eme nchọpụta enyochala iji ihe mgbakwunye dị iche iche, gụnyere cellulose ethers, iji meziwanye ike na mmetụta nkwụsị nke resin epoxy.

Ọtụtụ ọmụmụ akọpụtala iji MHEC dịka mgbakwunye na matrices resin epoxy. Dịka ọmụmaatụ, ọmụmụ Kim et al. (2019) nyochara mmetụta nke MHEC na akụrụngwa akụrụngwa nke ngwakọta dabere na epoxy. Ndị nchọpụta ahụ chọpụtara na mgbakwunye MHEC na-eme ka ọkpụkpụ siri ike na ike mmetụta nke ihe ndị mejupụtara, yana nkwụsi ike nke okpomọkụ na nkwụsị mmiri. Ndị ode akwụkwọ kwuru na nkwalite ndị a bụ ikike MHEC iji mepụta njikọ hydrogen na matrix epoxy resin matrix, bụ nke mụbara nchikota ihu ma gbochie ịgbasa mgbape.

Ọmụmụ ihe ọzọ Pan et al. (2017) nyochara mmetụta nke MHEC na omume ọgwụgwọ na ihe eji arụ ọrụ nke sistemụ resin epoxy. Ndị nchọpụta ahụ chọpụtara na mgbakwunye MHEC na-egbu oge ọgwụgwọ ma belata okpomọkụ kachasị elu nke resin epoxy, nke a na-ekwu na ọdịdị hydrophilic nke MHEC. Otú ọ dị, mgbakwunye MHEC mekwara ka ike nkwụsị na elongation dịkwuo mma na nkwụsị nke resin epoxy a gwọrọ, na-egosi na MHEC nwere ike imeziwanye mgbanwe na ike nke matrix epoxy resin.

Na mgbakwunye na imeziwanye akụrụngwa nke epoxy resin matrices, MHEC ka akọkwara na ọ nwere mmetụta dị mma na njirimara rheological nke sistemụ epoxy. Dịka ọmụmaatụ, ọmụmụ nke Li et al. (2019) nyochara mmetụta MHEC na rheology na akụrụngwa nke nrapado dabere na epoxy. Ndị nchọpụta ahụ chọpụtara na mgbakwunye MHEC na-eme ka omume thixotropic nke nrapado na-ebelata ma belata nhazi nke ihe nkpuchi. Mgbakwunye MHEC mekwara ka ike nke ntanye na mmetụta nkwụsị nke nrapado dịkwuo mma.

N'ozuzu, ojiji nke MHEC dị ka ihe mgbakwunye na epoxy resin matrices egosiwo na-ekwe nkwa arụpụta na melite n'ibu Njirimara, ike, na rheological omume nke usoro. A kwenyere na ike MHEC nwere ike ịmepụta njikọ hydrogen na matrix epoxy resin matrix bụ usoro dị mkpa na-akpata nkwalite ndị a, nke nwere ike iduga n'ịbawanye nchikota ihu na mbelata mgbawa. Agbanyeghị, achọrọ nyocha ọzọ iji ghọta nke ọma mmetụta MHEC nwere na njirimara nke matrices resin epoxy ma kwalite ojiji nke ether cellulose a na usoro dabere na epoxy.