ʻO ka ʻōpala kūlohelohe, e like me kā mākou e ʻōlelo pinepine ai, he mea paʻa i hana ʻia mai ka latex maoli i hōʻiliʻili ʻia mai nā kumulāʻau lāʻau, ma hope o ka coagulation, maloʻo a me nā kaʻina hana ʻē aʻe.ʻO ka pulupulu maoli he pūhui polimer maoli me ka polyisoprene kona mea nui, me ke ʻano mole (C5H8)n.ʻOi aku ka nui o ka 90% o kāna ʻano hydrocarbon (polyisoprene), a loaʻa pū kekahi i nā protein liʻiliʻi, nā momona momona, ke kō a me ka lehu.
ʻO nā waiwai kino o ka ʻōpala maoli.He kiʻekiʻe ka elasticity o ka lāʻau kūlohelohe i ka lumi lumi, ka plastic liʻiliʻi, ka ikaika mechanical maikaʻi loa, nā poho hysteresis haʻahaʻa, ka hana haʻahaʻa wela i ka wā o nā deformations he nui, no laila ua maikaʻi loa kona kūpaʻa flexural, a no ka mea he lāʻau non-polar, maikaʻi ia. nā waiwai hoʻokaʻawale uila.
ʻO ka Rubber, me nā plastics a me nā fiber, ʻo ia kekahi o nā mea synthetic ʻekolu me kahi kiʻekiʻe o ka stretchability a me ka elasticity.Hōʻike mua ʻia ka Rubber e kahi modulus liʻiliʻi loa o ka elasticity a me ka helu elongation kiʻekiʻe.ʻO ka lua, he kūpaʻa maikaʻi loa ia i ka permeability a me ke kūʻē ʻana i nā ʻano media kemika a me ka insulation uila.ʻO kekahi mau'āpana synthetic kūikawā i kaʻaila maikaʻi a me ka pale wela, e kū'ē ana i ka pehuʻana o nāʻaila momona, nāʻaila lubricating, nāʻaila hydraulic, kaʻaila hinu a me kaʻaila solvent;Hiki ke kū i ke anu anuanu e like me ka -60°C a i ka -80°C a me ke ki'eki'e o ka pale wela e like me +180°C a i +350°C.ʻAʻole kūpaʻa ka Rubber i nā ʻano hoʻololi a me ke kuʻi ʻana, no ka mea he liʻiliʻi nā poho hysteresis.ʻO ke kolu o nā hiʻohiʻona o ka rubber hiki ke hoʻohana ʻia, hoʻohui ʻia a hoʻohui ʻia me nā ʻano mea like ʻole a pēlā e hoʻololi ʻia i mea e loaʻa ai kahi hui maikaʻi o nā waiwai.
Ka manawa hoʻouna: Iune-20-2023
