Ụdị na njirimara thicker
Cellulosic thickeners nwere elu ndim arụmọrụ, karịsịa maka ndim nke mmiri na-adọ; ha nwere obere mgbochi na mkpuchi mkpuchi ma na-ejikarị eme ihe; Enwere ike iji ha mee ihe n'ọtụtụ pH. Agbanyeghị, enwere ọghọm dị ka ọkwa na-adịghị mma, ịgbasawanye n'oge mkpuchi rola, nkwụsi ike na-adịghị mma, yana enwere ike imebi microbial. N'ihi na ọ nwere obere viscosity n'okpuru akwa shear na elu viscosity n'okpuru static na ala shear, viscosity na-abawanye ngwa ngwa mgbe mkpuchi, nke nwere ike igbochi sagging, ma n'aka nke ọzọ, ọ na-eme ka ọkwa dara ogbenye. Nnyocha e mere egosiwo na ka ịdị arọ molekụla dị n'ịdị arọ na-abawanye, nfesa nke agba latex na-abawanye. Cellulosic thickeners na-adịkarị mfe splashing n'ihi na ha nnukwu ikwu molekụla uka. Na n'ihi na cellulose na-abawanye hydrophilic, ọ ga-ebelata nkwụsị mmiri nke ihe nkiri agba.
cellulosic thickener
Polyacrylic acid thickeners nwere ike ndim na larịị Njirimara, na ezi ndu nkwụsi ike, ma na-enwe mmetụta nke pH na-adịghị mma mmiri na-eguzogide.
polyacrylic thickener
A na-ebibi ihe ndị na-emekọ ihe ọnụ nke polyurethane thickener n'okpuru ọrụ nke ike shear, na viscosity na-ebelata. Mgbe ike ịkwa akwa na-apụ n'anya, enwere ike iweghachi viscosity, nke nwere ike igbochi ihe omume nke sag na usoro ihe owuwu. Na mgbake viscosity ya nwere ụfọdụ hysteresis, nke na-eme ka ọkwa ọkwa nke ihe nkiri mkpuchi. The ikwu molekụla uka (ọtụtụ puku na iri puku kwuru iri puku) nke polyurethane thickeners bụ nnọọ ala karịa ikwu molekul uka (narị puku puku na ọtụtụ nde) nke mbụ abụọ ụdị thickeners, na agaghị akwalite splashing. Mkpụrụ ndụ polyurethane thickener nwere ma hydrophilic na hydrophobic otu, na hydrophobic otu nwere njikọ siri ike na matrix nke ihe nkiri mkpuchi, nke nwere ike ime ka mmiri na-eguzogide mmiri nke ihe nkiri mkpuchi.
Oge nzipu: Mar-24-2023