Ihe siri ike nke dabere na mmiri anaghị agbaze na mmiri, mana o nwere ihe siri ike ụfọdụ (anaghị enwe ogologo ionic ma ọ bụ molekul nke ruru ọkwa 2 ~ 3, nnukwu mpaghara elu) nke ihe mgbakwunye organic. Ọ bụ otu ihe siri ike nke dabere na mmiri , nke a na-ejikarị eme ihe na mkpuchi, plastik, roba, agba na ihe mkpuchi organic ndị ọzọ, ihe nrapado na ụlọ ọrụ ndị ọzọ. Ihe siri ike bụ otu nke ihe ndị organic mejupụtara hydrogen iji mepụta emulsion nke otu ester (lee Ihe Mgbakwunye A), ihe siri ike bụ stearic acid (ester), hydroxyl (karịsịa otu ester), njikọ hydrogen, hydroxyl, carboxyl, na amide otu na-emepụta ihe siri ike. Njikọ hydrogen n'etiti otu ester na-enye ihe siri ike mmetụta ịmịkọrọ mmiri ma ọ bụ ọzịza. Ya mere, ihe siri ike nwere ike imeri agba, ihe nrapado nke ọma n'ihi mmụba okpomọkụ dị elu nke oyi akwa nrapado ahụ gbawara agbawa, gbawara agbawa ma ọ bụ na-akpụ akpụ na ntụpọ ndị ọzọ. O nwere ezigbo iguzogide ịka nká, iguzogide acid na alkali, yana ezigbo ihe eji arụ ọrụ, iguzogide ihu igwe, iguzogide okpomọkụ na iguzogide oyi.
- Overview
Dị ka usoro ya si dị, stiffener nwere ike kewaa ụzọ abụọ: mmanụ-soluble na mmiri-soluble. A na-ejikarị stiffener mmanụ soluble eme ihe na mkpuchi, plastik na roba na ihe mkpuchi organic ndị ọzọ iji gbochie ihe ahụ site na ọnya, mgbawa, peeling na ntụpọ ndị ọzọ n'ihi mgbasawanye okpomọkụ. Ngwunye mmiri na-edozi mmiri nwere mmetụta dị nro na mmanụ na ngwọta mmiri, nke na-agaghị eme ka agba agba agba, ma ngwakọta pigmenti enweghị ike ịmeghachi ya nke ọma ma ọ bụ mee ka ọ bụrụ ihe na-adịghị mma na ntụpọ ndị ọzọ. N'ihi na hardening mmetụta adịghị emepụta site-products (dị ka acrylic acid ụdị ma ọ bụ sulfonate ester ụdị) ma ọ bụ na-adịghị na-emepụta site-products, si otú ahụ na-emeziwanye dispersibility nke hardener na-amụba ike hardening ike budata mma ya okpomọkụ nguzogide, weathering, oyi na-eguzogide na ala-okpomọkụ arụmọrụ. N'otu oge ahụ nwere ike ibelata ọnụ ọgụgụ nke ihe mgbaze na mkpuchi na ịgbatị stiffener na-adabere na mmiri na oge ihicha achọrọ iji belata ụgwọ ọrụ mmepụta.
- II. The isi chemical Ọdịdị
Ndị na-agba ume na-abụkarị acetate esters, fatty acid esters, hydroxy acid esters ma ọ bụ alkyl lipids. Ọtụtụ n'ime stiffener nwere mmiri absorption, n'ihi ya, organic solvents nwere ike n'ụzọ dị irè chụsa n'ime emulsion na ibelata viscosity nke stiffener usoro, ọ nwekwara ike-eji dị ka a stabilizer ma ọ bụ emulsifier. Stiffener nwekwara ihe pụrụ iche nke ụdị, dị ka: ihe mgbaze na-esi ike na-eji plastik, rọba, mkpuchi, adhesives na ụlọ ọrụ ndị ọzọ. A na-eji ihe ndị na-eme ka ihe mgbaze mee ihe na agba na mkpuchi na-enwe mmetụta siri ike dị mma. A na-eji mmiri mmiri eme ihe na ụlọ ọrụ nri iji nọgide na-arụ ọrụ nke ọma. Ihe na-esighi ike na mmiri, na-agbaze na ihe mgbaze organic dị ka acrylates, nwere ike imekọrịta na ọtụtụ ihe mgbaze organic. Ọ nwere ike imepụta njikọ nke hydrogen na acid na alkali, nwere ike chelating siri ike maka anhydride na ike ionic ndị ọzọ, enwere ike ịme ya na ụdị polymers dị iche iche. Ọ nwere ezigbo nguzogide ihu igwe, isi ike dị elu na nguzogide corrosion.
III. Ojiji nke stiffener
Ịgwakọta: stiffener na ngwakọta ga-apụta nchikota ọzọ, na ngwakọta na-akpali akpali iji mepụta ihe ngosi nke egosipụta, na nkwusioru dị ukwuu. Ọ ga-eduga n'ịmepụta ihe nkiri emulsion n'elu agba ma mee ka mmetụta siri ike na-adịghị mma na nsogbu ndị ọzọ. Ya mere, a ga-akwụ ụgwọ nlebara anya na dose nke hardener, ego ahụ kwesịrị ekwesị, na ngwakọta ekwesịghị ịdị oke oke, ka ọ ghara ịgbasa n'ụzọ na-enweghị isi na-akpata ọnya, na-emetụta ojiji nke mmetụta.
Ngwakọta ngwa ngwa dị ala: a na-eji ngwa ngwa ngwa ngwa ngwa na-eme ka hydrate stiffener na-emepụta ngwakọta mmiri nke ịdị n'otu. Usoro a nwere ụdị ndị a: buru ụzọ tinye ntakịrị mkpokọta stearic acid (ester), hydroxyl, hydrogen bonding na hydroxyl, wee gwakọta ya na stearic acid ma ọ bụ ester otu iji mepụta stiffener; ma ọ bụ abụọ nwere ngwakọta stiffener mgbe ị gbakwunyere mmiri kwesịrị ekwesị iji mee ka ọ ghara ikpo ọkụ site na kpo oku.
Ụdị ihe mgbaze: ụdị ihe mgbaze a dabere na carboxyl (ma ọ bụ hydroxyl) dị ka otu ìgwè nke ihe ndị sitere n'okike ma ọ bụ polima, nke a gbazere na mmiri ma mepụta copolymer (nke dabere na ester). Ma ọ bụ polymerization ya iji nweta ogologo molekul yinye, nnukwu mpaghara elu, viscosity dị elu ma nwee ezigbo ihe gbasara mgbasa na oke nrapado na sistemụ mkpuchi mmiri (karịsịa dabere na ọnụọgụ resin dị na ihe mgbaze) nke polima maka nhazi njikọ nke ngwaahịa ahụ. Stiffener bụ mmiri mmiri emulsion, nke a na-amịkọrọ na okpomọkụ ụlọ ma na-enweta usoro mmeghachi omume iji mepụta nhazi netwọk. Ihe mgbaze na-enwekarị obere nnu, carboxylic acid (dịka ọmụmaatụ, hydroxylamine, phosphate esters, ma ọ bụ disodium sulfonate), ma ọ bụ obere ion ígwè dị ka ihe mgbakwunye. Oke ojiji ya sara mbara nke ukwuu, gụnyere mkpuchi mmiri , ihe nkiri plastik, ihe mgbaze na polima nwere ihe mgbaze nwekwara ike iji dị ka ihe ndabere maka mkpuchi ma ọ bụ ngwaahịa plastik.
- Mmiri dabere na mmiri ma ọ bụ mmanụ: ọdabara na ụdị mkpuchi ọ bụla, n'ozuzu ngwaahịa dị n'etiti;
- na-abụghị mmiri soluble: nwere ike etisasịwo na mmiri wee jiri nwayọọ nwayọọ na-achụsasị na emulsion uniformly chụgara;
- Ngwakọta siri ike-phase: emulsion mmiri mmiri nwere ike ịgbakwunye na ihe siri ike na ihe dị iche iche nke organic adhesives ma kpalie nke ọma (nwere organic fillers) maka ngwakọta; na-agbakwụnye ihe kwesịrị ekwesị nke stiffener ga-eme ka stiffener na ụfọdụ hardness ka mma ya n'ibu Njirimara na ịka nká iguzogide;
- Mkpuchi isi ike dabere na mmiri.
- IV. Ngwa nke stiffening gị n'ụlọnga na organic coatings, plastics, roba na ndị ọzọ ọrụ
Iji ihe ndị na-eme ka ihe sie ike mee ihe n'ime ihe mkpuchi mmiri bụ isi iji gbanwee polyester ndị na-enweghị afọ ojuju, emulsions copolymer, wdg, nke nwere ike ime ka arụmọrụ nke resin sịntetik ka mma. Polymer ahụ siri ike abụghị naanị na ọ nwere ike ịdị elu, kamakwa ọ nwere ezigbo iguzogide mmiri na iguzogide ịka nká. Mgbe ejiri ya, enwere ike ịgwakọta ihe na-eme ka ihe sie ike ka ọ bụrụ ihe ngwọta nwere mkpokọta nke 20-40%, wee tinye ya na kettle mmeghachi omume maka mmeghachi omume emulsification, enwere ike nweta emulsion siri ike dị elu mgbe etinyere oke mmiri kwesịrị ekwesị. Mgbe emulsion nwere ihe karịrị akụkụ ụfọdụ nke ihe mgbaze organic, polymerization na decomposition ga-eme, nke agaghị ebelata naanị arụmọrụ nke resin kamakwa ọ ga-akpata ịka nká nke akụrụngwa ma ọ bụ ngwaahịa. Ya mere, itinye oke ihe na-eme ka ihe sie ike kwesịrị ekwesị na mmepụta mkpuchi na sistemụ polymer nwere ike ime ka mmetụta ojiji ya ka mma ma mee ka ngwaahịa ahụ nwee mgbanwe ka mma na iguzogide okpomọkụ dị elu.
- V. ịdọ aka ná ntị
- Onye na-eme ihe na-esi ike ga-agbaji n'ime ihe ndị dị na pola n'okpuru oke okpomọkụ na ọnọdụ iru mmiri dị elu, ya mere a ga-emechi ya ma chekwaa ya iji gbochie ntapu na mmetọ nke ngwaahịa ahụ.
- Ebe nchekwa kwesịrị ịbụ ikuku na akọrọ, mee ka ụlọ ahụ kpọọ nkụ.
- Zere ikpughe anyanwụ.
- Tinye ma jiri nwayọọ nwayọọ mee ihe mgbe ị na-etinye.
- Ejila mmiri gwakọta ma ọ bụ megharịa ngwaahịa ahụ, ma ọ bụ gwakọta ihe ndị ọzọ na-agwọ ọrịa, ihe ndochi, pigmenti, ihe ndochi ma ọ bụ pigmenti mgbe ejiri ya.
- A machibidoro iwu ịgwakọta ya na lead, mercury na ihe mgbakwunye ọla dị arọ ndị ọzọ.
Maka ozi ndị ọzọ gbasara SINOYQX modified melamine formaldehyde resin, biko kpọtụrụ anyị site na email: [email protected] , ma ọ bụ kpọọ anyị oku na: +86-28-8411-1861.
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