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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 Polyurethanes kekahi o nā mea waiwai nui loa i ka honua i kēia lā. ʻO kā lākou mau hoʻohana he nui mai ka flamxly i nā meaʻala a me nā pale a me nā meaʻala a me nā meaʻala a me nā meaʻala i hoʻohanaʻia ma nā papa lāʻau Ua hoʻohana nuiʻiaʻo Plyuere He aha nā mea o nā mea e hana ai i nā polyurethannes no laila makemakeʻia? Hāʻawiʻo Polyurethane Durablity i ka lōʻihi o ke olaʻana o nā huahana he nui. ʻO nā hoʻonuiʻia o nā ola ola o ka huahana a me ka mālamaʻana i ka mālamaʻana i nā manaʻo no ka manaʻo maʻamau e like me ka kohoʻana i ke kohoʻana o Plyurethannes [19-21]. ʻO Pyurethanes