ʻO ka plastik PVC e pili ana i ka hoʻohui PVC i ka ʻoihana kemika.Ka inoa Pelekania: polyvinyl chloride, ka pōkole English: PVC.ʻO kēia ka manaʻo nui loa o PVC.
ʻO kona kala maoli he melemele translucent a ʻālohilohi.ʻOi aku ka maikaʻi ma mua o ka polyethylene a me ka polypropylene, a ʻoi aku ka maikaʻi ma mua o ka polystyrene.Ma muli o ka nui o nā mea hoʻohui, hiki ke hoʻokaʻawale ʻia i PVC palupalu a paʻakikī.ʻO nā huahana palupalu he palupalu a paʻakikī, a ʻoluʻolu hoʻi.ʻOi aku ka paʻakikī o nā huahana paʻakikī ma mua o ka polyethylene haʻahaʻa haʻahaʻa, akā ʻoi aku ka haʻahaʻa ma mua o ka polypropylene, a aia ka albinism ma nā piko.Nā huahana maʻamau: nā papa, nā paipu, nā kapuaʻi, nā mea pāʻani, nā puka a me nā puka makani, nā ʻili uwea, nā mea kākau, a me nā mea ʻē aʻe.
Ka holo a me ka puka: hiki ke hoʻohana i nā ʻīpuka maʻamau.Inā e hoʻoponopono i nā ʻāpana liʻiliʻi, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka puka ʻano nilala a i ʻole ka puka i lalo;No nā ʻāpana mānoanoa, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i nā puka pā.ʻO ke anawaena haʻahaʻa o ka ʻīpuka ʻano nila a i ʻole ka puka i loko o ka wai he 1mm;ʻAʻole e emi iho ka mānoanoa o ka puka pā ma lalo o 1mm.
Nā hoʻohana maʻamau: nā paipu wai, nā paipu hale, nā pā hale, nā pūpū mīkini ʻoihana, nā huahana uila, nā mea lapaʻau, nā meaʻai, etc.
ʻO nā waiwai kino a me ke kino o PVC rigid PVC kekahi o nā mea i hoʻohana nui ʻia.ʻO ka mea PVC kahi mea amorphous.Hoʻohui pinepine ʻia nā stabilizers, lubricants, nā mea hoʻoponopono kōkua, pigments, reinforcing agents a me nā mea hoʻohui ʻē aʻe i nā mea PVC i ka hoʻohana pono.
ʻAʻole hiki ke hoʻomālamalama ʻia nā mea PVC, ikaika kiʻekiʻe, kū i ka wā a me ke kūpaʻa geometric maikaʻi loa.He kūpaʻa ikaika ka PVC i nā mea hoʻoheheʻe, reductants a me nā waikawa ikaika.Eia nō naʻe, hiki ke hoʻopau ʻia e nā ʻakika oxidizing concentrated e like me ka sulfuric acid concentrated a me ka nitric acid concentrated, a ʻaʻole kūpono ia no nā manawa e pili ana me nā hydrocarbons aromatic a me nā hydrocarbons chlorinated.
ʻO ka wela hoʻoheheʻe o PVC i ka wā o ka hoʻoili ʻana he mea koʻikoʻi kaʻina hana.Inā kūpono ʻole kēia ʻāpana, e alakaʻi ia i ka pilikia o ka decomposition waiwai.ʻAʻole maikaʻi nā hiʻohiʻona kahe o PVC, a he haiki loa kona pae kaʻina.ʻO ka mea nui, ʻoi aku ka paʻakikī o ka hana ʻana i nā mea PVC me ke kaumaha molekala nui (pono kēia mea e hoʻohui i ka lubricant e hoʻomaikaʻi i nā ʻano kahe), no laila hoʻohana mau ʻia nā mea PVC me ke kaumaha molekala liʻiliʻi.He haʻahaʻa loa ka emi ʻana o PVC, maʻamau 0.2 ~ 0.6%.
Ka manawa hoʻouna: Jul-07-2022