Synthesis of UV Curable Waterborne Polyurethane Acrylate Coatings Featured Image

ʻO ka hoʻohuihui ʻana o ka UV Curable Waterborne Polyurethane Acrylate Coatings

ʻO ka wehewehe pōkole:

ʻO ka uhi Uv-wpua i haku ʻia me ka oligomer, photoinitiator, active diluent, etc. ʻO Oligomer ka mea nui loa i ka uhi uv-wpua.Hoʻoholo kona ʻano i nā waiwai kumu o ka kiʻiʻoniʻoni UV curing, e like me ka paʻakikī, ka maʻalahi, ke kūpaʻa ʻana, ka pale wai a me ka pale ʻana i ka corrosion.He mea koʻikoʻi ka Photoinitiator o ka ʻōnaehana hoʻōla UV, kahi mea koʻikoʻi i ka naʻau o ke kaʻina hana hoʻōla UV a pili pū i ka hana hope o ke kiʻiʻoniʻoni hoʻōla.Hoʻohana ka Uv-wpua i ka wai ma ke ʻano he mea hoʻoheheʻe ikaika, kahi e hōʻemi nui ai i ka hoʻohana ʻana i nā mea hoʻoheheʻe organik.

E hoʻouna i ka leka uila iā mākou

Huahana Huahana

Hoʻohui ʻia o ka wai ʻana o ka polyurethane Acrylate

ʻO ka oligomer i ka uhi uv-wpua he wpua, ʻo ia ka hapa nui o ka uhi.Hoʻokumu ʻia ʻo Wpua e ka hopena o ka polyisocyanate, diol a me ka hydroxyl acrylate.ʻO nā isocyanates e pili ana i nā isocyanates aromatic, aliphatic isocyanates a me alicyclic isocyanates, e pili ana i ka rigidity, ka pale ʻana i ka ea a me ke kūpaʻa melemele o wpua.ʻO nā diols ka nui o nā diols polyether a me nā diols polyester, e pili ana i ka ikaika tensile, palupalu, pale wela a me ka pale hydrolysis o wpua.
Hoʻopili ka hui - NCO i ka polyisocyanate me ka hui hydroxyl o ka diol e hana i kahi oligomer me nā hui isocyanate ma nā ʻaoʻao ʻelua.2. Hoʻohana ʻia ka 2,2-dihydroxymethylpropionic acid (DMPA) e like me ka diol e hoʻokomo i nā hui hydrophilic i loko o ka oligomer, a ua hoʻohui ʻia ka 1,4-butanediol (BDO) no ka hoʻonui ʻana i ke kaulahao;3. Ua ho'ohana 'ia ka Hydroxyethyl acrylate (HEA) no ka ho'olauna 'ana i nā pū'ulu ho'oikaika ki'i i loa'a nā pa'a pālua unsaturated no ka ho'ōla UV.Ma hope o ka pau ʻana o ka hopena ʻekolu ʻanuʻu, hoʻohui ʻia ka triethanolamine (teoa) no ka hopena neutralization, a hoʻohui ʻia ka wai e emulsify i loko o ka wai.
Ua hana ʻia e nā ʻepekema ʻē aʻe ka uv-wpua me ka hana maikaʻi loa ma o ka hoʻohana ʻana i nā mea maka synthetic e like me Polyhexylene glycol, isophorone diisocyanate, PETA, a me dimethylbutyric acid (DMBA).ʻEkolu ʻano wpua i hana ʻia mai ka polyacrylate i hoʻomākaukau ʻia me ka hui carboxyl ma ke kaulahao ʻaoʻao, polyether polyol, isophorone diisocyanate a me hydroxyethyl acrylate.Ma hope o ka hoʻokolokolo piha ʻana i ka hoʻāʻo kino a me ka hoʻāʻo noi, manaʻo ʻia ʻoi aku ka maikaʻi o ka hana piha o ka polyether wpua.Ke hoʻohana nei i ka toluene diisocyanate, polyhexanediol, 2,2-dihydroxymethylpropionic acid a me ka hydroxyethyl methacrylate e like me nā mea maka, ua hana mua ʻia ka prepolymer, a laila ua hoʻohui ʻia ka triethylamine ma ke ʻano he neutralizing agent, a ua hoʻohana ʻia ka wai e like me ke kaulahao extender e hoʻopuehu i ka wai e hana i ka lotion wpua paʻa.