PVC (PolyVinyl Chloride) poepoe kiwipa i hoohana nui ia i ka plastic pani pani. Aia i loko o ka pahu he pōpō hiki ke hoʻololi me ka lua. Ma ka hoʻohuli ʻana i ka pōleʻa i hoʻokahi hapahā huli, ʻo ka lua i loko o ka laina a kū pololei paha i ka paipa a wehe ʻia a paʻa paha ke kahe. He lōʻihi a maikaʻi ke kumukūʻai o nā kiwi PVC. Eia kekahi, hiki ke hoʻohana ʻia no nā ʻano media like ʻole, me ka wai, ka ea, nā kemika corrosive, nā waikawa a me nā kumu. Ke hoʻohālikelike ʻia me ke keleawe a i ʻole ke kila kila kila, ua helu ʻia lākou no nā haʻahaʻa haʻahaʻa haʻahaʻa a me nā paʻi a loaʻa ka ikaika mechanical haʻahaʻa. Loaʻa iā lākou me nā pilina paipu like ʻole, e like me nā kumu hoʻoheheʻe (pili ʻia) a i ʻole nā kaula paipu. ʻO ka hui pālua, a i ʻole nā kiwi hui ʻoiaʻiʻo, loaʻa nā hopena pili paipu ʻokoʻa i hoʻopaʻa ʻia i ke kino valve e kahi pilina pili. Hiki ke wehe maʻalahi ka valve no ka pani ʻana, ka nānā ʻana a me ka hoʻomaʻemaʻe.
Hana ʻia ka PolyVinyl Chloride
Kū ka PVC no PolyVinyl Chloride a ʻo ia ke kolu o ka polymer synthetic i hoʻohana nui ʻia ma hope o PE a me PP. Hana ʻia ia e ka hopena o 57% chlorine gas a me 43% ethylene gas. Loaʻa ʻia ke kinoea chlorine ma ka electrolysis o ka wai kai, a loaʻa ke kinoea ethylene ma ka distillation o ka ʻaila ʻaila. I ka hoʻohālikelike ʻana me nā plastics ʻē aʻe, ʻoi aku ka liʻiliʻi o ka ʻaila maʻemaʻe (PE a me PP ma kahi o 97% ethylene gas). Hoʻopili ka Chlorine a me ka ethylene a hana i ka ethanedichlorine. Hana ʻia kēia i mea e loaʻa ai ka monomer Vinylchlorine. ʻO kēia mea i polymerized e hana i ka PVC. ʻO ka hope, hoʻohana ʻia kekahi mau mea hoʻohui e hoʻololi i nā waiwai e like me ka paʻakikī a me ka elasticity. Ma muli o ke kaʻina hana maʻalahi a me ka nui o ka loaʻa ʻana o nā mea maka, ʻo PVC kahi kumu kūʻai kūpono a pili pono i ka hoʻohālikelike ʻana me nā plastics ʻē aʻe. He kūpaʻa ikaika ka PVC i ka lā, nā kemika a me ka hoʻohemo ʻana mai ka wai.
Nā waiwai PVC
Hāʻawi ka papa inoa ma lalo nei i kahi hiʻohiʻona nui o nā hiʻohiʻona koʻikoʻi o ka mea.
- Māmā, ikaika a lōʻihi ke ola lawelawe
- He kūpono no ka hana hou ʻana a me ka haʻahaʻa haʻahaʻa o ke kaiapuni i ka hoʻohālikelike ʻana me nā plastics ʻē aʻe
- Hoʻohana pinepine ʻia no nā noi maʻemaʻe, e like me ka wai inu. He mea koʻikoʻi ka PVC no ka mālama ʻana a hoʻoili ʻana i nā huahana meaʻai.
- Kū'ē i nā kinikini he nui, nā waikawa a me nā kumu
- ʻO ka hapa nui o nā kiwi pōpō PVC a hiki i DN50 ke kiʻekiʻe kiʻekiʻe o PN16 (16 bar ma ka lumi wela).
He haʻahaʻa haʻahaʻa a hoʻoheheʻe ʻia ka PVC. No laila, ʻaʻole pono e hoʻohana i ka PVC no nā mahana ma luna o 60 degere Celsius (140°F).
Nā noi
Hoʻohana nui ʻia nā valve PVC i ka hoʻokele wai a me ka irrigation. He kūpono hoʻi ʻo PVC no nā media corrosive, e like me ka wai kai. Eia kekahi, kū'ē ka mea i ka hapa nui o nā waikawa a me nā kumu, nā paʻakai paʻakai a me nā mea hoʻoheheʻe organik. Ma nā noi kahi e hoʻohana ʻia ai nā kinikona corrosive a me nā waikawa, no laila koho pinepine ʻia ʻo PVC ma luna o ke kila kila. He mau hemahema kekahi o ka PVC. ʻO ka drawback koʻikoʻi, ʻaʻole hiki ke hoʻohana ʻia ka PVC maʻamau no nā mahana media ma luna o 60°C (140°F). ʻAʻole kūpaʻa ʻo PVC i nā hydrocarbons aromatic a chlorinated. He haʻahaʻa haʻahaʻa ka ikaika mechanical o PVC ma mua o ke keleawe a i ʻole ke kila kila, a no laila, he haʻahaʻa haʻahaʻa haʻahaʻa nā kiwi PVC (ʻo PN16 ka mea maʻamau no nā kiwi a hiki i DN50). He papa inoa o nā mākeke maʻamau kahi i hoʻohana ʻia ai nā valve PVC:
- ʻO ka wai i loko o ka hale / ʻoihana
- Hoʻoponopono wai
- Nā hiʻohiʻona wai a me nā pūnāwai
- Aquariums
- Hoʻopaʻa ʻāina
- Nā loko ʻauʻau
- ʻO ka hana kemika
- ʻO ka hana meaʻai
Ka manawa hoʻouna: Mei-30-2020