ʻO ka ʻenehana hoʻōla ʻana o UV he ʻano hana kiʻekiʻe, palekana kaiapuni, mālama ʻana i ka ikehu a me ka ʻenehana kiʻekiʻe.Ua ʻike ʻia he ʻenehana hou no ka ʻoihana ʻōmaʻomaʻo i ke kenekulia 21.Me ka hoʻomohala ʻana i ka ʻepekema a me ka ʻenehana, ua hoʻomohala ʻia ka noi ʻana o ka ʻenehana hoʻōla UV mai nā papa paʻi mua loa a me nā photoresists a hiki i nā uhi hoʻōla UV, nā inika a me nā mea hoʻopili.Ke hoʻonui nei ke kahua noi, hana i kahi ʻoihana hou.
Hoʻokaʻawale pinepine ʻia nā huahana curing UV i nā uhi UV, UV inks a me UV adhesives.ʻO kā lākou hiʻohiʻona nui loa ka wikiwiki o ka hoʻōla ʻana, ma waena o kekahi mau kekona a me ʻumi mau kekona, a ʻo ka wikiwiki hiki ke ho'ōla ʻia i loko o 0.05 ~ 0.1s.ʻO lākou ka wikiwiki o ka maloʻo a me ka hoʻōla ʻana ma waena o nā ʻano uhi like ʻole, nā inika a me nā mea hoʻopili i kēia manawa.
ʻO ka mālama ʻana o UV ke ʻano o ka mālama ʻana i ka UV.ʻO UV ka pōkole Pelekane o UV.ʻO ka hoʻōla ʻana e pili ana i ke kaʻina hana e hoʻololi ai nā mea mai nā molekele haʻahaʻa i polymers.ʻO ka hoʻōla ʻana o UV e pili ana i nā kūlana hoʻōla a i ʻole nā koi o nā uhi (pena), inika, adhesives (glues) a i ʻole nā potting sealants ʻē aʻe e koi ana i ka hoʻōla ʻana o UV, he ʻokoʻa ia mai ka hoʻōla wela, hoʻōla me nā adhesives (curing agents), hoʻōla kūlohelohe, etc. [1].
ʻO nā mea maʻamau o nā huahana hoʻōla UV e pili ana i nā oligomers, nā diluents ikaika, photoinitiators, additives a pēlā aku.ʻO Oligomer ke kino nui o nā huahana curing UV, a ʻo kāna hana e hoʻoholo i ka hana nui o nā mea hoʻōla.No laila, ʻo ke koho ʻana a me ka hoʻolālā ʻana o ka oligomer he mea kānalua nui ia i ka hoʻokumu ʻana i nā huahana hoʻōla UV.
ʻO ka mea like o kēia mau oligomers, ʻo ia ka loaʻa ʻana o nā resins paʻa paʻa ʻole Unsaturated ma muli o ka hopena o ka polymerization radical manuahi: acryloyloxy> methacrylyloxy> vinyl> allyl. e like me ka epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, acrylate resin a vinyl resin, a ʻo ka mea maʻamau i hoʻohana ʻia he epoxy acrylate resin, polyurethane acrylate resin a me ka polyester acrylic resin.Hōʻike pōkole ʻia kēia mau resins ʻekolu ma lalo nei.
Epoxy acrylate
ʻO ka waiwai waika epoxy acrylic ka mea i hoʻohana nui ʻia a ʻo ka nui loa o ka oligomer curing UV i kēia manawa.Hoʻomākaukau ʻia mai ka epoxy resin a me (meth) acrylate.Hiki ke hoʻokaʻawale ʻia nā epoxy acrylates i bisphenol A epoxy acrylates, phenolic epoxy acrylates, epoxy acrylates i hoʻololi ʻia a me nā acrylates epoxidized e like me kā lākou ʻano hana, a ʻo ka bisphenol A epoxy acrylates ka mea hoʻohana nui loa.
ʻO Bisphenol ʻO ka epoxy acrylate kekahi o nā oligomers me ka wikiwiki o ka hoʻōla māmā.ʻO ke kiʻiʻoniʻoni i hoʻōla ʻia he paʻakikī kiʻekiʻe, ʻālohilohi kiʻekiʻe, kūpaʻa kemika maikaʻi loa, kūpaʻa wela maikaʻi a me nā waiwai uila.Eia kekahi, ʻo ka bisphenol A oxygen exchange acrylate he maʻalahi kumu kumu a me ke kumu kūʻai haʻahaʻa.No laila, hoʻohana maʻamau ia e like me ka resin nui no ka pepa hoʻomaʻamaʻa māmā, ka lāʻau, ka plastik a me nā uhi metala, a ʻo ia hoʻi ka resin nui no ka ʻīnika hoʻomaʻamaʻa māmā a me ka lāʻau hoʻōla māmā.
Polyurethane acrylate
ʻO ka polyurethane acrylate (PUA) kekahi oligomer koʻikoʻi o ka hoʻōla ʻana o UV.Hoʻopili ʻia ia e ka hopena ʻelua o ka polyisocyanate, long-chain diol a me ka hydroxyl acrylate.Ma muli o ka nui o ka polyisocyanates a me ka long-chain diols, oligomers me nā waiwai i hoʻonohonoho ʻia e synthesized ma o ka hoʻolālā molekula.No laila, ʻo lākou nā oligomers me ka nui o nā hōʻailona huahana i kēia manawa, a hoʻohana nui ʻia i nā uhi hoʻōla UV, inika a me nā mea hoʻopili.
Polyester Acrylate
ʻO ka polyester acrylate (PEA) kekahi oligomer maʻamau, i hoʻomākaukau ʻia mai ka polyester glycol kaumaha molekala haʻahaʻa e ka acrylate.Hōʻike ʻia ka polyester acrylate e ke kumu kūʻai haʻahaʻa a me ka viscosity haʻahaʻa.Ma muli o kona viscosity haʻahaʻa, hiki ke hoʻohana ʻia ka polyester acrylate e like me ka oligomer a me ka diluent ikaika.Eia kekahi, ʻo ka hapa nui o nā acrylates polyester he haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa, hoʻololi maikaʻi a me ka pulu puaʻa, a kūpono i nā pena kala a me nā inika.I mea e hoʻomaikaʻi ai i ke kiʻekiʻe curing rate, multifunctional polyester acrylate hiki ke hoʻomākaukau;ʻAʻole hiki i ka Amine hoʻololi polyester acrylate ke hōʻemi wale i ka mana o ka polymerization inhibition oxygen, hoʻomaikaʻi i ka helu curing, akā hoʻomaikaʻi pū i ka adhesion, gloss a me ke kūpaʻa.
Loaʻa i nā mea hoʻoheheʻe ikaika nā pūʻulu reactive, hiki ke hoʻoheheʻe a hoʻoheheʻe i nā oligomers, a he hana koʻikoʻi i ke kaʻina hana hoʻōla UV a me nā waiwai kiʻiʻoniʻoni.E like me ka heluna o nā pūʻulu reactive, ʻo nā mea hoʻoheheʻe hana monofunctional maʻamau ka isodecyl acrylate, lauryl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, etc;ʻO nā mea hoʻoheheʻe hana bifunctional he polyethylene glycol diacrylate series, dipropylene glycol diacrylate, neopentyl glycol diacrylate, etc;Multifunctional active diluents e like me trimethylolpropane triacrylate, etc. [2].
He mana koʻikoʻi ka Initiator i ka wikiwiki o ka mālama ʻana i nā huahana hoʻōla UV.I nā huahana ho'ōla UV, ʻo ka nui o ka photoinitiator maʻamau 3% ~ 5%.Eia kekahi, he hopena koʻikoʻi ka puaʻa a me nā mea hoʻopihapiha hoʻopihapiha i ka hana hope o nā huahana hoʻōla UV.
Ka manawa hoʻouna: Iune-15-2022