Hua inoa huahana:Poelurhane

ʻO ka hoʻolālā molecular huahana:

Nā waiwai waiwai:

Ua hana muaʻiaʻo Pyurethanes a noiʻiʻia e ka Dr. Otto Bayer ma 1937.ʻO Polyurethane he potomer i kahi o nā mea hana hou. ʻO Urethanes nā derivatatives o nā carbamic o nā carbamina e noho wale ana ma keʻano o kā lākou edders [15]. ʻO ka hana nui o ka puʻo ia ka mea i hoʻopiliʻiaʻole ke kaulahao ma nā carbon a me nā heteroatoms, ka carbon a me nitrong [4]. No nā noi noi aku, hiki ke hoʻohanaʻia kahi hoʻohui hoʻohui polyydroxyl. Pēlā e like me ka hoʻohuiʻana o Poly-friend Nitrogen Nitrogen e hiki ke hoʻohana i nā pilina amede. Ma ka hoʻololiʻana a me ka hoʻololiʻana i ka polyhydroxyl a me nā hui nitroninchical Hoʻohanaʻia nā kaulikeʻo Polytesero a me nā kulekele polyetera i loaʻa e pili ana i nā pūʻulu Hydroxyl e hana ai e hana i ka Poly Indertererol-PulysErol Poursetter ʻO nāʻano like i ka helu o nā mea i loaʻa a me ka spacing ma waena a me nā pale ma waena o nā kaulahao e hana i ka pus inding a me ka uku. Hoʻohanaʻiaʻo Linear Pus no ka hanaʻana o nā fibers a me nā ulding [6]. Hoʻohanaʻiaʻo Pus Flexible i ka hanaʻana o nāʻoihana paʻa a me nā lole [5]. ʻO nā plastics a me nā mea i hoʻopaʻaʻia a me nā mea e hana ai i ka hapa nui o ka pus i hanaʻia, hiki ke loaʻa ma nāʻano likeʻole o nāʻoihana [7]. Ke hoʻohana nei i nā mea haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, hiki i nā copollym block i hiki ke hanaʻia. Hiki i nā hui hydroxyl me nā koho balota e koho ana, i kapaʻia nā'āpana, e hoʻokomoʻia i loko o ka kaula. ʻO nāʻano like i kēia mau'āpana i nā hualoaʻa i nā pae kiʻekiʻe o ka ikaika o ka ikaika a me ka elasticity. Hāʻawi nā poloka i ka hāʻawiʻana i ka brigi ʻO kēlā mau mea e hāʻawi ana i kahi'āpana amorphous a me ka mea i loaʻa i ka polyester / polyether i kapaʻia nā'āpana palupalu. ʻO ke kālepa, uaʻikeʻia kēia mau polym block e like me ka nui o ka pus

Ke noi:

ʻO ka polyxible polyupers ka mea nui i ka hana linear me ka thermoplastictity Ua loaʻa iā ia keʻano o keʻano o ke aniani No laila, hoʻohanaʻia ia e like me ke kauʻana, e pale aku ana i nā kumuwaiwai a me nā kānana. ʻO Rigid Polyurethane Firl ka mālamalama, kani leo, nā pale o keʻano o ka paleʻana, nā waiwai kūpono, maʻalahi ka wai. Ua hoʻohana nuiʻia ia ma keʻano he mea hana no ka kūkuluʻana, automomile, kaʻoihana a me ka hoʻoweliweliʻana a me keʻano o ke aniani. ʻO Pyuretonshane Elastomer ma waena o ka plastics a me ka'ōpala,ʻaila, ka paleʻana, kiʻekiʻe loa, kiʻekiʻe loa. Hoʻohana nui ia i kaʻoihana kāmaʻa a me kaʻoihana olakino. Hiki Hiki ke hoʻoikaikaʻiaʻo Polyurehale i loko o nā kikowaena, nā lole, synthetic, syc.