Crosslinked polyethylene: palapala noi a me nā 'ano

Polyethylene mea he mea ia ua hoʻohana 'ia i loko o nā hana. kekahi huahana mai ia e hoʻohana 'ia i loko o maʻamau o ke ola. Common polyethylene hoopaa mai ai i kona ikaika i ka 130 degere. Eia naʻe, ia mea pinepine pono e hoʻohana i kēia mea, a me ka nui loa ana ma ka ka mahana kiʻekiʻe a me ka puʻe, no ka laʻana i loko o ka hahana maoli nō kēia'ōnaehana a me ka wela i ka wai.

Kēia e pono i alakai ai i ka huli 'ana no ka aoao e loaa i ka oi mau nō mea. Loaʻa enehana mau wahi crosslinked polyethylene, a mea he nui hakakino kaupaona like like me kaʻike mau mea, a ua hou ano. Ma e kuhikuhi maopopo i ke kaʻina hana ma i e loulou iho ai na nā lātoma aie a hiki i ke kahua o ke keʻa-loulou i pili i loko o ka ekolu-dimensional maka aha shirokoyacheistuyu.

Ke kaumaha ma muli o ka pili waiwai maopopo Nine Inch a me physical crosslinking. Ma ka hope hihia, o ka ohe (keʻa-ua hoʻopili polyethylene ua hoʻohana 'ia no ka ho okumu ikamu oʻikepili) ua irradiated me ka X-kukunaʻoʻoleʻa. Kēia enehana He loa hoʻomāhuahua ai, a ma ka minuke oe ke kiʻi mai i 80 mau mika o ka mea.

A keakea o ka iaoia mea i ka crosslinked polyethylene loaʻa haoʻa mānoanoa o ka ohe. Ma ka loko o ka huli me ka haahaa pakeneka o ka hui nā lātoma, a ma ka mawaho, ma ka mea ku ole, ka mea kiekie loa. Alaila, kekahi mau waiwai, a me nā huahana ma bulk. I ka hopena o ka crosslinked polyethylene waeʻano C (PEX).

I ka hoʻohana 'ana i kekahi Nine Inch ano no ka hope o ka hydrogen nā'ātoma ma na nā lātoma i hoʻohana kūikawā waiwai silane. Alaila, he silane crosslinked polyethylene. Ma ka hana o kaʻohe hele ma waena o ka kūikawā auau piha me ka waiwai. Ua apono 'ia eʻaʻahu crosslinking kaʻina hana o ka pahale loko, a ma waho surfaces o ka paipu pā ma ka hohonu. Kēia 'ike loea i ka mea hiki ke loaa mai i ke paipu me ka pakeneka kiʻekiʻe o ka aaioee, a me ka lako e koho PEX-B.

Aia o he ano o aaioee ka polyethylene naikokene radicals Ua koho loko mea PEX-D. Eia naʻe, 'ike loea i kēia mea,ʻaʻole pili no i ka mea haʻahaʻa ka hoʻokōʻana.

I hana keʻa-e kuhikuhi ana peroxides. Ma keia hihia, ke? Iecaianoaaiiie kaʻina maupaʻa hoʻohuihui o ka peroxide a me ka polyethylene, laila, i loko o ka moku'āina i hoʻoheheʻeʻia, a ma lalo kiʻekiʻe wela loaa crosslinked polyethylene PEX-A pae.

Kahawai ana i hanaʻi kumuhana (nā pūʻulu B, C) hoʻohana no ka wai lako a me ka paio hahana maoli nō, nae, ka mea, i kekahi mau hoʻokau i hai aku i ka toughness a me ka ductility nā huahana.

Ka loaʻana i nāʻohe i ke polyethylene hui A, ka mea, i kiʻekiʻe luhi ikaika, crack ia'ku, dimensional kumupaʻa, kohoʻia, ke ahonui e hoohikilele au.

Paio hahana maoli nō PEX paipu e hoʻomano hoʻohana no ka pilikino, na a me ka hanalima? Ieoaeunoai. Me kā lākou kōkua halihali papakü radiatorʻia, a nāna hoʻi i hana i ka papakü paio hahana maoli nō kahua.