Hoʻomohala hou o ka resin UV Waterborne

1. Pūnaehana lālā nui

Ma ke ʻano he ʻano polymer hou, he ʻano spherical ka polymer hyperbranched, he helu nui o nā pūʻulu hopena ikaika a ʻaʻohe wili ma waena o nā kaulahao mole.Loaʻa i nā polymers Hyperbranched nā mea maikaʻi o ka hemo maʻalahi, kahi haʻahaʻa heheʻe, haʻahaʻa viscosity a me ka reactivity kiʻekiʻe.No laila, hiki ke hoʻokomo ʻia nā hui acryloyl a me nā hui hydrophilic e synthesize i nā oligomers hoʻomaʻamaʻa wai wai, e wehe ana i kahi ala hou no ka hoʻomākaukau ʻana i ka resin UV Waterborne.

Ua hoʻomākaukau ʻia kahi polyester (whpua) hiki ke mālama ʻia i ka wai ma muli o ka hopena o ka Hyperbranched Polyester waiwai i nā pūʻulu hydroxyl me ka succinic anhydride a me ka ipdi-hea prepolymer, a hoʻopau hope ʻia me ka amine organik e lilo i paʻakai.Hōʻike nā hopena i ka wikiwiki o ka hoʻōla māmā o ka resin a maikaʻi nā waiwai kino.Me ka piʻi ʻana o ka ʻāpana ʻāpana paʻakikī, piʻi ka mahana hoʻololi aniani o ka resin, piʻi ka paʻakikī a me ka ikaika tensile, akā e emi ana ka elongation i ka wā hoʻomaha.Ua hoʻomākaukau ʻia nā polyesters hyperbranched mai nā polyanhydride a me nā epoxide monofunctional.Hoʻokomo ʻia ʻo Glycidyl methacrylate e hana hou aku me nā hui hydroxyl a me carboxyl o nā polymers hyperbranched.ʻO ka hope, ua hoʻohui ʻia ka triethylamine e hoʻokaʻawale a hana i nā paʻakai no ka loaʻa ʻana o UV curable waterborne hyperbranched polyesters.Ua hōʻike nā hopena i ka ʻoi aku o ka nui o ka hui carboxyl i ka hopena o ka resin hyperbranched ma muli o ka wai, ʻoi aku ka maikaʻi o ka hoʻoheheʻe wai;Hoʻonui ka hoʻōla ʻana o ka resin me ka piʻi ʻana o nā mea paʻa pālua.

2 ʻōnaehana huila ʻano-anorganic

ʻO ke kukui UV wai i hoʻōla ʻia i nā ʻōnaehana organik / inorganic hybrid kahi mea hoʻohui maikaʻi o ka resin UV Waterborne a me nā mea inorganic.Hoʻokomo ʻia nā mea maikaʻi o nā mea inorganic e like me ke kūpaʻa ʻaʻahu kiʻekiʻe a me ke kūpaʻa kiʻekiʻe o ka wā i loko o ka resin e hoʻomaikaʻi i nā waiwai piha o ka kiʻiʻoniʻoni hoʻōla.Ma ka hoʻokomo ʻana i nā ʻāpana inorganic e like me nano-SiO2 a i ʻole montmorillonite i loko o ka ʻōnaehana hoʻōla UV ma o ke ʻano hoʻopuehu pololei, ke ʻano sol-gel a i ʻole ke ʻano intercalation, hiki ke mākaukau ka UV curing organic / inorganic hybrid system.Eia kekahi, hiki ke hoʻokomo i ka monomer organosilicon i loko o ke kaulahao mole o ka oligomer UV aqueous.

Ua hoʻomākaukau ʻia ʻo Organo / inorganic hybrid lotion (Si PUA) ma ka hoʻokomo ʻana i nā pūʻulu polysiloxane i loko o ka ʻāpana palupalu o ka polyurethane me ʻelua terminal hydroxybutyl polydimethylsiloxane (PDMS) a me ka diluting me nā monomers acrylic.Ma hope o ka ho'ōla ʻana, loaʻa i ke kiʻi pena nā waiwai kino maikaʻi, ke kihi pili kiʻekiʻe a me ke kūpaʻa wai.Hoʻomākaukau ʻia ka polyurethane hybrid hyperbranched a me ka polyurethane hyperbranched māmā i hoʻōla ʻia mai ka polyhydroxy hyperbranched polyurethane, succinic anhydride, silane coupling agent KH560, glycidyl methacrylate (GMA) a me hydroxyethyl methacrylate.A laila, hoʻomākaukau ʻia ʻo Si02 / Ti02 organic-inorganic hybrid sol o ka polyurethane hyperbranched māmā i hoʻōla ʻia ma o ka hui ʻana a me ka hydrolyzing me ka tetraethyl orthosilicate a me ka n-butyl titanate ma nā ʻano like ʻole.Hōʻike nā hualoaʻa me ka hoʻonui ʻana i ka ʻike inorganic, piʻi ka paʻakikī pendulum o ka uhi hybrid a piʻi ka ʻili o ka ʻili.ʻOi aku ka maikaʻi o ka ʻili o ka SiO2 hybrid coating ma mua o ka Ti02 hybrid coating.

3 ʻōnaehana hoʻōla pālua

I mea e hoʻoponopono ai i nā hemahema o ka mālama ʻana i ʻekolu-dimensional o Waterborne UV resin a me ka mālama ʻana i ka uhi mānoanoa a me ka ʻōnaehana kala, a hoʻomaikaʻi i nā waiwai piha o ke kiʻiʻoniʻoni, ua hoʻomohala nā mea noiʻi i kahi ʻōnaehana hoʻōla ʻelua e hui pū ana i ka mālama māmā me nā ʻōnaehana hoʻōla ʻē aʻe.I kēia manawa, ho'ōla māmā, ho'ōla wela, ho'ōla māmā / ho'ōla redox, ho'ōla kukui manuahi / ho'ōla māmā cationic a ho'ōla māmā / ho'ōla pulu he mau ʻōnaehana hoʻōla pālua, a ua hoʻohana ʻia kekahi mau ʻōnaehana.No ka laʻana, ʻo ka pale uila uila UV he ʻōnaehana hoʻōla ʻelua o ka curing māmā / redox a i ʻole curing māmā / curing pulu.

Hoʻokomo ʻia ka monomer ethyl acetoacetate methacrylate (amme) i loko o ka wai waika polyacrylic, a ua hoʻokomo ʻia ka hui hoʻōla māmā ma o Michael hoʻohui ʻana i ka haʻahaʻa haʻahaʻa e synthesize i ka hoʻōla wela / uv curing waterborne polyacrylate.Hoʻomaloʻo i kahi mahana mau o 60 ° C, 2 x 5 Ma lalo o ke kūlana o 6 kW kiʻekiʻe-pressure mercury kukui irradiation, ʻo ka paʻakikī o ka resin ma hope o ka hoʻokumu ʻia ʻana o ke kiʻiʻoniʻoni he 3h, ʻo ke kūʻē ʻana o ka waiʻona he 158 mau manawa, a ʻo ke kūpaʻa alkali he 24. hola.

4 epoxy acrylate / polyurethane acrylate composite system

Loaʻa i ka epoxy acrylate coating nā mea maikaʻi o ka paʻakikī kiʻekiʻe, ka hoʻopili maikaʻi ʻana, ka ʻālohilohi kiʻekiʻe a me ke kūpaʻa kemika maikaʻi, akā he palupalu a me ka brittleness.ʻO ka wai wai polyurethane acrylate nā hiʻohiʻona o ka pale lole maikaʻi a me ka maʻalahi, akā maikaʻi ʻole ke kū ʻana i ka wā.ʻO ka hoʻohana ʻana i ka hoʻololi kemika, ka hui ʻana kino a i ʻole nā ​​ʻano hybrid e hoʻohui pono i nā resins ʻelua hiki ke hoʻomaikaʻi i ka hana o ka resin hoʻokahi a hāʻawi i ka pāʻani piha i ko lākou mau pono, i mea e hoʻomohala ai i kahi ʻōnaehana hoʻōla UV kiʻekiʻe me nā pono ʻelua.

5 macromolecular a i ʻole polymerizable photoinitiator

ʻO ka hapa nui o nā photoinitiators nā molekole liʻiliʻi aril alkyl ketone, ʻaʻole hiki ke hoʻoheheʻe ʻia ma hope o ka hoʻōla māmā ʻana.E neʻe ana nā koena liʻiliʻi liʻiliʻi a i ʻole nā ​​huahana photolysis i ka ʻili o ka uhi ʻana, e hoʻomelemele a ʻala paha, e pili ana i ka hana a me ka hoʻohana ʻana i ke kiʻiʻoniʻoni i hoʻōla ʻia.Ma ka hoʻokomo ʻana i nā photoinitiators, nā pūʻulu acryloyl a me nā pūʻulu hydrophilic i nā polymers hyperbranched, ua hana nā mea noiʻi i nā photoinitiators macromolecular polymerizable waterborne e lanakila ai i nā hemahema o nā photoinitiators liʻiliʻi molecular.