Hydroxyethyl Cellulose (HEC) bụ ihe na-abụghị ionic mmiri-soluble ogige polymer nke a na-agbanwe usoro kemịkalụ site na cellulose site na mmeghachi omume hydroxyethylation. HEC nwere ezigbo mmiri solubility, ndim, nkwusioru, emulsifying, dispersing and film-forming properties, n'ihi ya, a na-ejikarị ya eme ihe na ihe owuwu ụlọ, mkpuchi, kemịkalụ kwa ụbọchị na ụlọ ọrụ nri. N'ihe mkpuchi mmiri na-ekpuchi ngwa ngwa rubber asphalt, iwebata hydroxyethyl cellulose nwere ike imeziwanye nguzogide okpomọkụ ya.
1. Ihe ndị bụ isi nke hydroxyethyl cellulose
Hydroxyethylcellulose nwere ikike ịgbanye nke ọma na imepụta ihe nkiri n'ime mmiri, na-eme ka ọ bụrụ ezigbo thickener maka mkpuchi mmiri dị iche iche. Ọ na-abawanye viscosity nke agba nke ukwuu site n'ịme njikọ hydrogen na ụmụ irighiri mmiri, na-eme ka netwọkụ nke mkpụrụ ndụ mmiri sie ike. Ihe onwunwe a dị mkpa karịsịa na mkpuchi mmiri na-ekpuchi mmiri, ebe ọ bụ na viscosity dị elu na-enyere mkpuchi ahụ aka ịnọgide na-enwe ọdịdị ya na ọkpụrụkpụ tupu ọ gwọọ ya, na-eme ka ihe nkiri na-aga n'ihu na-agbanwe agbanwe.
2. Mechanism iji meziwanye nguzogide okpomọkụ
2.1 Mee ka nkwụsi ike nke mkpuchi
Ọnụnọ nke hydroxyethyl cellulose nwere ike melite nkwụsi ike nke okpomọkụ nke mkpuchi asphalt roba. Viscosity nke eserese na-ebelatakarị mgbe okpomọkụ na-ebili, na hydroxyethyl cellulose na-eme ka usoro a kwụsịlata ma na-edobe àgwà anụ ahụ nke agba ahụ. Nke a bụ n'ihi na otu hydroxyethyl dị na molekul HEC nwere ike ịmepụta netwọk anụ ahụ na-ejikọta ya na ihe ndị ọzọ dị na mkpuchi ahụ, nke na-eme ka nkwụsi ike nke okpomọkụ nke ihe nkiri mkpuchi na-eme ka ọ nwee ike ịnọgide na-arụ ọrụ dị mma na ọrụ n'okpuru ọnọdụ okpomọkụ dị elu.
2.2 Meziwanye ihe eji arụ ọrụ nke ihe nkiri mkpuchi
Ihe eji arụ ọrụ nke ihe nkiri mkpuchi, dị ka mgbanwe, ike ike, wdg, na-emetụta ọrụ ya ozugbo n'okpuru ọnọdụ okpomọkụ dị elu. Okwu mmeghe nke HEC nwere ike ime ka ihe ndị na-emepụta ihe na-arụ ọrụ nke ihe nkiri mkpuchi ahụ, bụ nke kachasị n'ihi mmetụta ya na-eme ka ọ bụrụ ihe na-eme ka ihe nkiri ahụ dịkwuo njọ. Ọdịdị ihe nkiri mkpuchi dị oke ọ bụghị nanị na-eme ka nguzogide okpomọkụ dịkwuo mma, kamakwa na-eme ka ikike iguzogide nrụgide anụ ahụ kpatara site na mgbasawanye okpomọkụ nke mpụga na nkwekọrịta, na-egbochi mgbawa ma ọ bụ peeling nke ihe nkiri mkpuchi.
2.3 Mee ka adhesion nke ihe nkiri mkpuchi
N'okpuru ọnọdụ okpomọkụ dị elu, mkpuchi mkpuchi mmiri na-adịkarị mfe delamination ma ọ bụ peeling, nke bụ isi n'ihi enweghị nchikota zuru oke n'etiti mkpụrụ na ihe nkiri mkpuchi. HEC nwere ike imeziwanye ihe mkpuchi nke mkpuchi ahụ na mkpụrụ ahụ site n'ịkwalite arụmọrụ ihe owuwu na imepụta ihe nkiri nke mkpuchi. Nke a na-enyere mkpuchi ahụ aka ịnọgide na-enwe mmekọrịta chiri anya na mkpụrụ na oke okpomọkụ, na-ebelata ihe ize ndụ nke peeling ma ọ bụ delamination.
3. Data nnwale na ngwa bara uru
3.1 Nleba anya
Iji nyochaa mmetụta nke hydroxyethyl cellulose na nguzogide okpomọkụ nke mkpuchi mkpuchi mkpuchi mkpuchi roba nke na-agba ọsọ ngwa ngwa, enwere ike ịmepụta usoro nyocha. N'ime nnwale ahụ, enwere ike ịgbakwunye ihe dị iche iche nke HEC na mkpuchi mkpuchi mmiri, mgbe ahụ, a ga-enyocha nkwụsi ike nke okpomọkụ, ihe ndị na-arụ ọrụ na adhesion nke mkpuchi site na nyocha thermogravimetric (TGA), dynamic thermomechanical analysis (DMA) na ule nyocha.
3.2 Nsonaazụ nnwale
Nsonaazụ nnwale na-egosi na mgbe ịgbakwunye HEC, okpomọkụ na-eguzogide okpomọkụ nke mkpuchi na-abawanye nke ukwuu. N'ime otu njikwa na-enweghị HEC, ihe nkiri mkpuchi ahụ malitere ire ere na 150 Celsius. Mgbe agbakwunyere HEC, okpomọkụ nke ihe nkiri mkpuchi ahụ nwere ike idi elu ka elu 180 ° C. Tụkwasị na nke ahụ, mmeghe nke HEC mụbara ike nkwụsị nke ihe nkiri mkpuchi ihe dịka 20%, ebe nyocha nke peeling gosiri na nchikota nke mkpuchi ahụ na mkpụrụ ahụ mụbara ihe dịka 15%.
4. Ngwa injinia na akpachapụ anya
4.1 Ngwa injinia
N'ime ngwa bara uru, iji hydroxyethyl cellulose nwere ike imeziwanye arụmọrụ ihe owuwu na arụmọrụ ikpeazụ nke mkpuchi mkpuchi mkpuchi mkpuchi rọba ngwa ngwa. Enwere ike iji mkpuchi a na-agbanwe agbanwe na mpaghara ndị dị ka ụlọ mkpuchi mmiri, ihe mkpuchi mmiri n'okpuru ala engineering, na pipeline anticorrosion, ma dị mma karịsịa maka ihe mkpuchi mmiri na gburugburu ebe okpomọkụ dị elu.
4.2 Akpachara anya
Ọ bụ ezie na HEC nwere ike imeziwanye arụmọrụ nke mkpuchi, ọ dị mkpa ka a na-achịkwa usoro ọgwụgwọ ya nke ọma. HEC dị ukwuu nwere ike ime ka viscosity nke mkpuchi ahụ dị elu, na-emetụta arụmọrụ ụlọ. Ya mere, na nhazi usoro n'ezie, a ga-emezi usoro ọgwụgwọ HEC site na nyocha iji nweta ọrụ mkpuchi kachasị mma na mmetụta ụlọ.
Hydroxyethyl cellulose n'ụzọ dị irè na-eme ka okpomọkụ na-eguzogide ọgwụ na-ekpo ọkụ na-ekpo ọkụ nke na-agbapụta ngwa ngwa rubber asphalt waterproofing site n'ịbawanye viscosity nke mkpuchi ahụ, na-eme ka ihe ndị na-emepụta ihe nke ihe nkiri mkpuchi ahụ dịkwuo mma, na-eme ka adhesion nke mkpuchi ahụ dịkwuo mma. Data nnwale na ngwa ndị bara uru na-egosi na HEC nwere mmetụta dị ukwuu n'ịkwalite nkwụsi ike nke okpomọkụ na ntụkwasị obi nke mkpuchi. N'iji ezi uche eme ihe nke HEC nwere ike ọ bụghị naanị ịkwalite arụmọrụ nke mkpuchi mkpuchi, kamakwa ọ na-agbatị ndụ ọrụ nke mkpuchi mmiri na gburugburu ebe okpomọkụ dị elu, na-enye echiche ọhụrụ na ụzọ maka mmepe nke ụlọ ihe mkpuchi mmiri.
Oge nzipu: Jul-08-2024