HEMC eji na Skim Coat

Cellulose etherHEMC bụ Hydroxyethyl Methyl cellulose nke a na-ejidị ka ndim n'ụlọnga mmiri njide gị n'ụlọnga na ngwa nkeUwe mkpuchi, N'ihi thixotropy nke cellulose n'onwe ya, mgbakwunye nkeHEMCcellulose ether na Skim Coat ntụ ntụ na-edugakwa na thixotropy nke Skim Coat na mmiri. Nke a na-akpata thixotropy site na nbibi nke usoro ihe eji eme ihe na Skim Coat ntụ ntụ. A na-emepụta ihe owuwu a na izu ike ma gbasasịa n'okpuru nrụgide. Ya bụ, viscosity na-ebelata na mkpasu iwe na-agbake na izu ike.

Mgbe anyị na-eji cellulose ether HEMC naUwe mkpuchintụ ntụ, a ga-enwekarị nsogbu ụfọdụ, ka anyị ghara ịma ihe kpatara yaeme na Uwe mkpuchintụ ntụ!

Otu: kpoo ngwa ngwa. Nke a bụ n'ụzọ bụ isi ọnụọgụ calcium isi awọ na eriri mmiri na-ejigide mmiri, kamakwa metụtara nkụ nke mgbidi ahụ.

Abụọ: bee na mpịakọta. Nke a metụtara ọnụ ọgụgụ njide mmiri, obere viscosity nke cellulose na-adịkarị mfe na ọnọdụ a ma ọ bụ obere usoro onunu.

Atọ: ntụ ntụ. Nke a metụtara ọnụ ọgụgụ calcium isi awọ, kamakwa ọnụọgụ cellulose na àgwà nke mmekọrịta ahụ, na-egosipụta na ọnụ ọgụgụ njide mmiri nke ngwaahịa, ọnụ ọgụgụ njide mmiri dị ala, oge hydration calcium isi awọ ezughị, kpatara.

Anọ: ọnya. Nke a metụtara iru mmiri akọrọ na ịdị larịị nke mgbidi ahụ, mana ọ na-emetụtakwa ihe owuwu ahụ.

Ise: ebe agịga. Nke a metụtara cellulose, mmepụta ihe nkiri ya adịghị mma, kamakwa adịghị ọcha na cellulose na isi awọ calcium nwere ntakịrị mmeghachi omume, ma ọ bụrụ na mmeghachi omume na-eme ihe ike, naUwe mkpuchintụ ntụ ga-eweta ọnọdụ nke mkpụrụ osisi bean. Enweghị ike ịnọ na mgbidi, n'otu oge ahụ enweghị njikọ, na mgbakwunye na cellulose jikọtara ya na ngwaahịa carboxylated na-apụtakwa n'ọnọdụ a.

Isii: ọgba mgbawa ugwu na obere oghere. O doro anya na nke a na-ejikọta ya na esemokwu elu nke hydroxyehtyl methyl cellulose aqueous ngwọta na elu esemokwu nke hydroxyethyl aqueous ngwọta adịghị anya maka ịnata ọgwụgwọ ọkụ ga-adị mma.

Asaa:Uwe mkpuchiakọrọ mgbe mfe cracking, yellowing. Nke a na-ejikọta ọnụ ọgụgụ calcium isi awọ, ọnụ ọgụgụ nke calcium isi awọ, na-eme ka mmụba nke ike siri ike.Uwe mkpuchintụ ntụ mgbe ihicha, naanị hardness na-enweghị mgbanwe dị mfe ịgbawa, karịsịa site ná mpụga ike dị mfe ịgbawa. Ọzọkwa na calcium isi awọ na calcium oxide ọdịnaya dị elu.

Uwe mkpuchidị arọ na usoro scraping?

N'okwu a, viscosity nke cellulose dị oke elu. Ụfọdụ ndị na-emepụta ihe na-eji 200 puku cellulose mee putty. NkeUwe mkpuchimere n'ụzọ dị otú a dị elu na viscosity, n'ihi ya, ọ na-adị arọ mgbe scraping. Ime mgbidi ga-agwụ ike na nwa amụma tinye quantity bụ 3, 5 kilogram, viscosity bụ 8, 100 puku.

Gịnị mere naUwe mkpuchina ngwa agha eji otu viscosity mereHEMCcellulose na oyi na okpomọkụ na-eche viscosity dị iche?

N'ihi gelation thermal nke ngwaahịa ahụ, viscosity nke ngwaahịa ahụ ga-eji nwayọọ nwayọọ belata na mmụba nke okpomọkụ. Mgbe okpomọkụ karịrị gel okpomọkụ nke ngwaahịa ahụ, ngwaahịa ahụ ga-esi na mmiri pụta, si otú ahụ na-efunahụ viscosity. N'oge okpomọkụ, ọnụ ụlọ okpomọkụ na-adịkarị karịa ogo 30, nke dị nnọọ iche na okpomọkụ n'oge oyi, ya mere viscosity na-adị ala. N'oge okpomọkụ, a na-atụ aro ka ịhọrọ ngwaahịa ndị nwere viscosity dị elu ma ọ bụ mee ka usoro nke cellulose dịkwuo elu, wee họrọ ngwaahịa nwere okpomọkụ gel dị elu.