ʻO UV kahi ʻano uhi e hiki ke hoʻōla koke i loko o kahi kiʻiʻoniʻoni i loko o kekahi mau kekona ma lalo o ka irradiation o ultraviolet (UV).ʻOlokaʻi ʻia ka uhi ʻana o UV ma ka papa lako ma o nā mīkini a me nā mea hana.Ma lalo o ka irradiation o ke kukui ultraviolet, hoʻoikaika ia i ka decomposition o ka mea hoʻomaka, hana i nā radical manuahi, hoʻoulu i ka hopena resin, a paʻa koke i kahi kiʻiʻoniʻoni me ka ʻole o ka volatilization.No laila, ʻoi aku ka maikaʻi, ka ʻōmaʻomaʻo a me ke kaiapuni.
Ma lalo o ke ʻano maʻamau o ka hydration, ua hoʻohana maikaʻi ʻia ka uhi ʻana o Waterborne UV i ka lāʻau, plastic, paʻi, lāʻau kemika a me nā māla ʻē aʻe ma muli o ko lākou aloha kaiapuni a me ke aloha hana.He kuleana koʻikoʻi nā mea maka.ʻO ka hoʻomau mau ʻana o ka hana, nā hiʻohiʻona a me nā hoʻonā noiʻi o nā uhi wai e hoʻoikaika i ke kaʻina hana o ka resin hydration.
1 epoxy acrylate / polyurethane acrylate composite system
ʻO ka oligomer Photosensitive ka ʻāpana nui o ka resin cured UV, ka mea e hoʻoholo ai i nā waiwai kumu o ka resin cured.Loaʻa i nā ʻano matrix resins ko lākou mau pono hiki ke hoʻololi ʻia, akā e loaʻa iā lākou nā hemahema.No ka laʻana, ʻo ka epoxy resin based curing film he kiʻekiʻe ka paʻakikī, adhesion maikaʻi, kiʻekiʻe kiʻekiʻe a me ke kūpaʻa kemika maikaʻi loa, akā loaʻa iā ia ka hemahema o ka hiki ʻole.ʻO kekahi hiʻohiʻona ʻo ia ka polyurethane based resin he mau waiwai maikaʻi loa e like me ke kūpaʻa ʻaʻahu a me ke kūpaʻa ʻana, akā ʻaʻole lawa kona kūpaʻa i ka wā.Hoʻohana ka poʻe noiʻi i ka hui ʻana a i ʻole nā ʻano hybrid e hoʻohui i nā mea ʻelua, i mea e hoʻoponopono ai i ka hemahema o kahi resin hoʻokahi a hoʻomohala i kahi ʻōnaehana me nā ʻano maikaʻi ʻelua.
2 dendritic a hyperbranched ʻōnaehana
ʻO nā dendrimers UV hiki ke mālama ʻia i ka wai a i ʻole nā oligomers hyperbranched he ʻano polymers hou me ka spherical a i ʻole dendritic structure a ʻaʻohe entanglement ma waena o nā kaulahao mole.Eia kekahi, ʻo ka hoʻolālā polymer kiʻekiʻe loa i loaʻa i ka nui o nā pūʻulu hopena ikaika.Hoʻololi ʻia kēia mau pūʻulu hopena ikaika e hoʻoponopono i nā waiwai o ka polymer a hoʻopili iā ia i nā kahua kikoʻī.Ke hoʻohālikelike ʻia me nā polymers linear me ke kaumaha molekala like, ʻo nā oligomers hyperbranched he mau waiwai maikaʻi loa e like me ka helu heheʻe haʻahaʻa, haʻahaʻa viscosity, maʻalahi hoʻoheheʻe a me ka reactivity kiʻekiʻe.He mau mea kūpono ia no nā resins matrix curing māmā wai.ʻO ka polyester hyperbranched i hoʻokumu ʻia i ka wai i haku ʻia me ka polyhydroxy functional aliphatic polyester e like me ke kumu hiki ke hoʻemi i ka wai dilution a hōʻike i kahi hopena hoʻemi viscosity maikaʻi ma muli o kona hiki ke hoʻoheheʻe wai maikaʻi a me ka viscosity haʻahaʻa.
3 epoxy soybean aila acrylate
Loaʻa i ka ʻaila soy epoxy nā mea maikaʻi o ke kumu kūʻai haʻahaʻa, ka mālama ʻana i ke kaiapuni, ke kaulahao molekala lōʻihi a me ke ʻano crosslinking haʻahaʻa.Hiki iā ia ke hoʻomaikaʻi nui i ka maʻalahi a me ka hoʻopili ʻana o ka uhi.I nā makahiki i hala iho nei, ua lilo ia i wahi wela no ka noiʻi ʻana i ke kahua o nā uhi ma ka home a ma waho.Ua hoʻokō maikaʻi ʻia ma ka epoxy soybean oil acrylate a me ka epoxy soybean oil acrylate UV free radical curing coatings ma Kina.Ua hoʻokō ʻo Cub company ma ʻAmelika Hui Pū ʻIa i ka hana pāʻoihana, e like me ebercy860.ʻO ke ʻano hana synthesis o ka ʻaila epoxy soybean acrylate he ʻano hoʻololi semi ester, ʻo ia ka esterificate epoxy soybean aila me ka waikawa acrylic.
Ka manawa hoʻouna: Mei-25-2022