ʻO ka hiki ke hoʻonui ʻia o nā kiwikā palakiko

ʻOiai ke ʻike ʻia nei nā kiwikā palakika ma ke ʻano he huahana kūikawā—he koho nui ia na ka poʻe hana a hoʻolālā paha i nā huahana paipu palakika no nā ʻōnaehana ʻoihana a i ʻole ka poʻe e pono e loaʻa nā lako maʻemaʻe loa—ʻo ka manaʻo ʻana ʻaʻole nui nā hoʻohana maʻamau o kēia mau kiwikā he mea pōkole ia. ʻO ka ʻoiaʻiʻo, he nui nā hoʻohana o nā kiwikā palakika i kēia lā e like me ka hoʻonui ʻia ʻana o nā ʻano mea a me nā mea hoʻolālā maikaʻi e pono ai kēlā mau mea, ʻo ia hoʻi nā ala hou aʻe e hoʻohana ai i kēia mau mea hana versatile.

Nā Waiwai o ka Palakiko
He ākea nā pono o nā kiwikā palakika—kūʻē i ka palaho, kemika a me ka ʻānai ʻana; nā paia o loko he laumania; māmā; maʻalahi o ke kau ʻana; lōʻihi ke ola; a me ke kumukūʻai haʻahaʻa o ke ola. Ua alakaʻi kēia mau pono i ka ʻae nui ʻia ʻana o nā kiwikā palakika i nā noi kalepa a me nā ʻoihana e like me ka hoʻolaha ʻana i ka wai, ka mālama ʻana i ka wai ʻino, ka hana ʻana i ka metala a me ke kemika, ka meaʻai a me nā lāʻau lapaʻau, nā mea kanu mana, nā hale hoʻomaʻemaʻe aila a me nā mea hou aku.
Hiki ke hana ʻia nā kiwikā palakika mai nā ʻano mea like ʻole i hoʻohana ʻia i nā ʻano hoʻonohonoho like ʻole. ʻO nā kiwikā palakika maʻamau i hana ʻia me ka polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), polypropylene (PP), a me ka polyvinylidene fluoride (PVDF). Hoʻopili pinepine ʻia nā kiwikā PVC a me CPVC i nā ʻōnaehana paipu ma o nā wēlau socket cementing solvent, a i ʻole nā ​​wēlau wili a me nā flanged; ʻoiai, pono ka PP a me PVDF i ka hoʻohui ʻana o nā ʻāpana ʻōnaehana paipu, ma o nā ʻenehana wela, butt a i ʻole electro-fusion.

ʻOiai ʻo ka polypropylene ka hapalua o ka ikaika o PVC a me CPVC, ʻo ia ka mea kū'ē i nā kemika maʻalahi loa no ka mea ʻaʻohe mea hoʻoheheʻe i ʻike ʻia. Hana maikaʻi ʻo PP i nā waikawa acetic i hoʻopaʻa ʻia a me nā hydroxides, a kūpono hoʻi ia no nā hopena palupalu o ka hapa nui o nā waikawa, alkalis, paʻakai a me nā kemika organik he nui.

Loaʻa ka PP ma ke ʻano he mea pigmented a i ʻole pigmented ʻole (kūlohelohe). Hoʻohaumia nui ʻia ka PP kūlohelohe e ka radiation ultraviolet (UV), akā ʻo nā hui i loaʻa ma mua o 2.5% ka pigmentation kalapona ʻeleʻele ua lawa ka UV stabilized.

Hoʻohana ʻia nā ʻōnaehana paipu PVDF i nā ʻano hana ʻoihana like ʻole mai ka lāʻau lapaʻau a i ka mining ma muli o ka ikaika o ka PVDF, ka mahana hana a me ke kūpaʻa kemika i nā paʻakai, nā waikawa ikaika, nā kumu dilute a me nā mea hoʻoheheʻe organik he nui. ʻAʻole e like me PP, ʻaʻole i hoʻohaumia ʻia ka PVDF e ka lā; akā naʻe, ua moakaka ka plastic i ka lā a hiki ke hōʻike i ka wai i ka radiation UV. ʻOiai he mea maikaʻi loa ka hoʻohui kūlohelohe, ʻaʻohe pigment o PVDF no nā noi maʻemaʻe kiʻekiʻe, ʻo ka hoʻohui ʻana i kahi pigment e like me ka ʻulaʻula papa meaʻai e ʻae i ka hōʻike ʻana i ka lā me ka ʻole o ka hopena maikaʻi ʻole ma ka wai.