Enwere ike ịkwadebe ihe mkpuchi nke mmiri (VOC & HAPs) na-enweghị mmiri site na mmiri mmiri aliphatic epoxy na warara polymerized capropone polyols ma nwee ike itinye ya na ngwá ọrụ omenala ma nwee ike iji dochie mkpuchi ntụ ntụ. Gịnị bụ isi ihe nlebara anya na nkwadebe nke mmiri mmiri. aliphatic epoxy liquid coatings?Chinese epoxy resin Industry Association ọkachamara mere pụrụ iche iwebata ụbọchị ole na ole gara aga.
Enwere ike ịzere ihe ntinye akụrụngwa akụrụngwa dị mkpa maka ahịrị mkpuchi ntụ ntụ ọhụrụ site na iji ngwa ịgbasa mmiri mmiri ọdịnala.Enwere ike gbanwee mkpuchi ndị a site n'ịgbasa ha na mmiri ma ọ bụ na-eme ka ihe mkpuchi mmiri na-eme ka mmiri dị na cellulose thickeners. Site na diglycidyl ether nke bisphenol A (bpa) resin, alicyclic epoxy nwere ọtụtụ akụkụ ndị a: ọdịiche dị n'etiti A dị ka agbụ isi. aliphatic, mmeghachi omume na acid ngwa ngwa, ma na amine / amides epoxy na-agwọ ọrịa ndị a na-ejikarị eme ihe, anaghị enwe chlorine, viscosity nke 350 centipoise na diglycidyl ether nke bisphenol A (bpa) resin dị ka 11000 centipoise, n'otu oge ahụ. ọ nwekwara magburu onwe ihu igwe na-eguzogide. Ngwa nke ala viscosity aliphatic epoxy na cationic UV mkpuchi e budata ụba.Enweela ọtụtụ akụkọ banyere nkwadebe na ihe onwunwe nke ụdị mkpuchi 100% siri ike na-enweghị "VA", ma e nwere akwụkwọ ole na ole zuru ezu na ngwa ya na mkpuchi ọgwụgwọ thermal. N'ụkpụrụ, cationic UV cover formula technical know-how nwekwara ike a ga-eji maka thermal ọgwụgwọ usoro, ma abụọ nwekwara dị iche iche dị ka UV mkpuchi bụ n'ozuzu bụghị spraying ewu, otú ahụ na-ewu viscosity dị elu karịa spraying thermal curing mkpuchi, na mmiri ụdị cationic mkpuchi mmiri nwere ike iji dị ka VOC diluent.
A na-eji polyols Cepolactone mee ihe dị ka ihe na-arụ ọrụ nke ọma maka mkpuchi ihe mgbaze ma nwee ike mee ka ọgwụgwọ nke mkpuchi UV cationic dị ngwa ngwa.Otu hydroxyl nke polyols ndị a na mkpuchi cationic UV nwere ike ọ bụghị naanị mee ka ọgwụgwọ ahụ dịkwuo elu, kamakwa ọ na-eduga n'ịgwọ ụfọdụ mmetụta nke iru mmiri. Na mkpuchi ikpo ọkụ na-ekpo ọkụ n'ihi obere iru mmiri na oven, iru mmiri adịghị egbochi ọgwụgwọ. Ọnụnọ ya. nke polyols enwekwu ndidi nke mmiri, nke mere na mmiri nwere ike ji mee ihe dị ka a VOC-free thinner na agba formulations esịnede aliphatic epoxies na polyols, nke bụ n'ezie elu siri ike organic coatings diluted na water.Water dilution nwere uru abụọ: ala viscosity na. enweghị VOC, na iji ihe agba agba na-emekarị na nke a maara nke ọma na-egbochi ịkwado na njikwa rheological. Ebe ọ bụ na akụkụ ọ bụla dị na usoro ahụ bụ nanị akụkụ nke mmiri na-adịghị mma, ọnụ ọgụgụ mmiri nke nwere ike ịmịnye dị oke.Ekwesịrị ịkpachapụ anya ka ịzere ịgbakwụnye oke mmiri iji mee ka nkewa nke oge.
Cellulosic thickeners dị irè na mkpuchi mmiri, ma ọ bụghị ihe doro anya ma ha dị irè na 100% siri ike, mmiri aliphatic epoxy coatings. Ọrụ mbụ gosiri na mmiri-diluted 100% epoxides siri ike bụ thixotropic mgbe a tụrụ ya na Brookfield viscometer. .Nchọpụta nke dị iche iche thickeners na-egosi na cellulose thickeners nwere kasị mma keukwu Njirimara.Mgbe kpụ ọkụ n'ọnụ na 40 ~ 60 ℃, kasị mma ọdịdị nke ihe nkiri nwere ike nweta site n'itinye ịgba égbè.The ala ewu okpomọkụ na-eme ka gwọrọ film mepụta ọzọ oroma peel.China epoxy resin ụlọ ọrụ mkpakọrịta ọkachamara kwuru na isi uru nke ntụ ntụ mkpuchi na-ntekwasa na elu arụmọrụ, elu arụmọrụ bụ tumadi site na mgbake nke ntụ ntụ nweta, ka ntụ ntụ mkpuchi Ẹkot ka. ụdị mkpuchi mmiri mmiri a chọrọ ụzọ ụfọdụ iji nwetaghachi agba agba. Ebe ọ bụ na agba agba a kọwara ebe a enweghị ihe mgbaze organic maka mgbake dị mfe karị, mmiri furu efu na usoro mgbake nwere ike gbanwee ngwa ngwa site na ịlele conductivity eletrik mgbe ọ dị mkpa, na-azọpụta ike site na. na-achọ obere mmiri ọkụ ma e jiri ya tụnyere okpomọkụ dị elu dị elu nke achọrọ maka mkpuchi ntụ ntụ. Nhọrọ ọzọ a na-enyocha bụ ịgbasa epoxies anhydrous, polyols, na pigmenti na usoro "Unicarb", nke dị irè karịa mkpuchi ntụ ntụ.Ọ bụrụ na achọghị mkpuchi VOC efu, tinye ihe mgbaze na usoro ahụ.
Banyere usoro ndetu, China epoxy resin ụlọ ọrụ mkpakọrịta ọkachamara kwuru, n'ihi na cationic ọgwụgwọ n'ihi na alkali ga-akwụsị na-agwọ ọrịa, n'ihi ya, ihe niile mgbakwunye na rheological akara mmadụ agaghị nwere alkaline, alkaline pigments na amines mesoo pigments ga-egbochi curing.Alkalescent ma ọ bụrụ na damine pigments ga- na-egbochikwa ọgwụgwọ cationic, pigmenti alkaline na ihe mgbakwunye na mkpuchi cationic na-agwọ ọrịa enweghị ike iji ya, ọgwụgwọ na-adabere na onye na-akpata FC-520 na obere ego nke amine sealant volatilization, ma ọ bụrụ na ihe nkiri ahụ dị oke ma ọ bụ oven adịghị ventilashị, amine enweghị ike kpamkpam wepụrụ na fim na inhibit curing.Viscosity ụba na-abawanye na polyols branched ogo mmụba: dibasic mmanya karịa atọ ma ọ bụ anọ yuan ego ala viscosity nke agba, mmanya na glycol òkè mkpa dịkwuo ego nke epoxy uru ( Enwere ike nweta R) site na mkpuchi siri ike, enwere ike imeziwanye usoro onunu ogwu nke epoxy corrosion, mmụba nke usoro onunu ogwu nwere ike mee ngwangwa ogwugwu mana o nwekwara ike ibelata corrosion, oke molar nke epoxy na hydroxyl R nwere mmetụta dị ukwuu na ọsọ ọgwụgwọ. .
Ka o sina dị, alicyclic epoxy na caprolactone polyols bụ obere viscosity na ọbụna ọ dịghị VOC mkpuchi, mkpuchi nwere ike diluted na mmiri ka ịgba viscosity, cellulose thickener nwere ike inye mmiri itughari nke 100% siri ike epoxy na polyols mkpuchi n'ụzọ dị irè gbochie sagging, usoro nke ọgwụgwọ ọsọ. A na-ekpebi site na mgbanwe ndị a: ọnụọgụ molar nke epoxy na hydroxyl, mmanya multivariate na ọrụ epoxy, usoro onunu ogwu nke ihe na-akpata na okpomọkụ na-agwọ ọrịa, usoro ahụ nwere ike iji mee ihe n'ụzọ dị mfe na nkwadebe nke agba, n'ihi na ụdị mkpuchi a maka cationic. Ịgwọ isi agba na mkpụrụ nwere ike igbochi ọgwụgwọ.
Oge nzipu: Eprel-06-2021