Ụbọchị nbipute:11,Febụwarị,2022

Sulfonatedmelamineformaldehyderesina na-akpọ yamelamine resin, makwaara dị kamelamine formaldehyde resinma ọ bụmelamine resin. Ọ bụ ihe mgbanaka triazine dị mkpa.Melamine resinnwere oke mmiri na-eguzogide mmiri, nguzogide ịka nká, ọkụ ọkụ, nkwụsị ọkụ, nkwụsị nke kemịkalụ na ihe mkpuchi, a pụkwara iji ya mee ihe n'ịkpụzi ogige ịkpụzi (tableware kwa ụbọchị na ngwa eletriki), ogwe osisi (plywood, laminate flooring and laminated plastic). mbadamba)) na ụfụfụ plastik, wdg. Na mgbakwunye, melamine resina na-ejikwa ya eme ihe n'ọtụtụ ebe dị ka mkpuchi, nrapado osisi, ndị na-ejikọta agba agba, ndị na-emecha textile fiber, ndị na-ahụ maka mmiri mmiri na mmiri ciment na-ebelata ihe.

Melamine resinnwere ngwa ndị bụ isi:

1. Ngwa na ụlọ ọrụ akpụkpọ anụ:

Na ụlọ ọrụ akpụkpọ anụ,melamine resinbụ ihe a na-ejikarị eme ihe tupu tanning, retanning na resin na-ejuputa, n'ime nke trimethylolmelamine resinbụ amino resin kacha eji eme ihe. Amino resin nwere usoro tanning yiri nke aldehyde tanning: prepolymer na-abanye n'ime akpụkpọ ahụ, na ka pH uru na-ebelata, prepolymer na-akpaghị aka condenses n'ime molekul nwere ụfọdụ size na akpụkpọ, na-arụ ọrụ - NHCH 2 OH na. A na-agafe collagen n'ime molekul. Otu amino dị na yinye peptide na-agbakọta ka ha wee mepụta usoro njikọ njikọ ọnụ iji nweta ebumnuche nke tanning. N'otu oge ahụ, resin amino nwere mmetụta njuputa. Braum, Aloysins na ndị ọzọ na-eji GPS, IR, 1H-NMR, 13C-NMR na ụzọ nchọpụta ndị ọzọ, wee chọpụta na resin a nwere ma tanning na ndochi Njirimara, na nwere ike jupụta na nnukwu ego n'etiti collagen fibers nke akpụkpọ anụ. mee ka ahụ akpụkpọ ahụ jupụta. Mmetụta.Melamine resinA na-eji onye na-ahụ maka tanning mee ihe na retanning nke chrome-tanned ìhè akpụkpọ anụ iji mee ka akpụkpọ anụ gwụchara nke ọma, jupụtara n'ọkpụkpụ, ọkpụkpụ doro anya, mmetụta na-acha ọcha dị mma na ọkụ ọkụ dị mma. Ma ọ nwere ezigbo ndakọrịta na ndị ọrụ tanning ndị ọzọ. A na-eji ya na ndị na-ahụ maka tanning nke akwukwo nri, ọ nwere ike ịkwalite ntinye na ntinye nke ihe oriri na-edozi ahụ, ma na-abawanye nguzogide abrasion na nguzogide ihu igwe nke akpụkpọ anụ. Ọ bụrụ na ejiri ya mee ihe maka retanning nke suede, mmetụta na-ebuli elu dị mma.

2. Ngwa na ụlọ ọrụ akwụkwọ:

Ụkpụrụ na njirimara arụmọrụ nke a na-eji dị ka ihe na-eme ka mmiri dị ike na mmiri na-ekpo ọkụ. N'ihi namelamine formaldehyde resinnwere methylol, ọ nwere ike ịmepụta usoro etherified n'etiti eriri eriri. Njikọ njikọ a n'etiti ụmụ irighiri ihe dị iche iche na-emepụta mmiri na-eguzogide mmiri ma mee mpempe akwụkwọ. Iji nweta mmetụta nke ike moisturize, a na-ejikarị ya dị ka ihe na-eme ka mmiri dị ike na mmiri na-ekpo ọkụ na ụlọ ọrụ akwụkwọ. A na-ejikarị Trimethylol melamine eme ihe na ụlọ ọrụ akwụkwọ, ma n'ihi na nkwụsi ike ya, mmiri solubility na ọdịnaya formaldehyde efu adịghị mma, ọ na-enwekwa mmetụta ọjọọ na ịdị ọcha na ịdịte aka nke akwụkwọ, a na-eji melamine emezi eme ihe n'ọtụtụ ebe ugbu a. resin.

3. A na-eji dị ka seramiiki na cement dispersant:

Melamine formaldehyde resinsulfonate bụ ezigbo anionic surfactant nwere ọrụ elu na ihe ndị ọzọ bara uru. A na-ejikarị ya dị ka onye na-ekesa ihe dị elu ma ọ bụ onye na-ebelata mmiri na ceramik, ciment na ihe n'ụlọ na ná mba ọzọ. Usoro ya bụ isi: ụdị mmiri na-ebelata mmiri nwere ọrụ nke adsorption, dispersion na lubrication, n'ihi ya, a pụrụ imeziwanye ọrụ nke ihe nkedo site na iji obere mmiri, iji nweta nzube nke mbelata mmiri. N'ihi mbelata nke mmiri na-agwakọta mmiri, a na-ebelata pores dị na ihe ahụ, na-eme ka ciment dịkwuo ụba ma na-abawanye ike, nke nwekwara ike ibelata ọnụ ọgụgụ nke ciment. N'ihi ntinye nke onye na-ebelata mmiri na-ebelata mmiri, uto nke ngwaahịa hydration ciment na-adị ngwa ngwa, na usoro ntanetị nke sulfonated dị ntakịrị, nke bara uru maka mmụba nke ike ogologo oge.

4. Ejiri ya dị ka nrapado osisi:

N'ụlọ ọrụ osisi,sulfonatedmelamineformaldehyderesina na-ejikarị eme ihe dị ka nrapado. N'ihi nnukwu ọrụ kemịkalụ ya, mgbe ọ na-abanye n'ime ngwaahịa osisi, njikọ njikọ na-agba ọsọ na-agba ọsọ na-agba ọsọ ngwa ngwa, ọ pụkwara ime ka okpomọkụ sie ike ma ọ bụ mee ka ọ sie ike na ụlọ okpomọkụ na-enweghị ihe ndị ọzọ siri ike, si otú ahụ na-emepụta mmetụta njikọ. N'ihi nkwụsi ike ya dị mma, nkwụsị mmiri na nguzogide kemịkalụ, a na-eji ya eme ihe n'ọtụtụ ebe na ogwe osisi, osisi, ihe owuwu, nkwakọ akwụkwọ na mpaghara ndị ọzọ. Ihe a na-elekwasị anya n'ubi a bụ ka esi emeri ihe mgbagwoju anya ma nwetamelamine formaldehyde resinna agafeghị oke mgbanwe. Ihe ngwọta dị ugbu a bụ ịgbakwunye mmanya polyvinyl, n'ihi na ọ nwere ike meghachi omume na formaldehyde iji mepụta polyvinyl acetal, nke a na-ekesa n'otu n'otu na resin, iji gbochie atọ nitrogen heterocyclic molecules na MF resin molecules na-abịaru nso, na-egwu mmetụta siri ike na gbochie mgbawa.

5. Ejiri ya dị ka onye na-ebi akwụkwọ na akwa akwa:

N'ime ụlọ ọrụ textiles.sulfonatedmelamineformaldehyderesinna ihe ndị na-emepụta ya bụ ihe ndị dị mkpa maka nkwadebe nke ibipụta ákwà, ịcha akwa na ndị na-emecha ihe. Usoro ọrụ ya bụ nke a ga-eji mee ihe dị ka ihe ngbanwe elu na onye na-ejikọta akwa maka akwa, si otú ahụ na-emeziwanye ihe mgbochi mgbochi, mgbochi nhịahụ na mmiri ịsacha akwa akwa akwa. Agbanyeghị, n'ihi nkwụsi ike nchekwa na-adịghị mma, mmetụta aka siri ike na nnabata dị mfe nke chlorine na ịcha akwa mgbe etinyere ya, emela nyocha ọzọ na mgbanwe ya. Ka ọ dị ugbu a, methanol na-ebelatamelamine resina na-eji, na formaldehyde modifiers dị ka cyclic vinylidene urea na borax na-agbakwunyere iji nweta mgbanwe.melamine formaldehyde resinonye na-emecha ihe na aldehyde ultra-low na nkwụsi ike dị elu. A na-eji resin ahụ emezigharịrị eme ihe maka mgbochi mgbochi na mgbochi nhịahụ nke poplin na-acha ọcha A na-emecha, ịcha edo edo na mfu chlorine, na nguzogide ịsa ahụ dịkwa mma. Ọzọkwa, oge nchekwa nke onye na-emecha ihe bụ 210-365 d, ọdịnaya formaldehyde n'efu bụ 0.3%, na ọdịnaya siri ike bụ ihe dịka 40%.