Polyvinyl chloride (PVC)ʻO ka plastic kahi mea i hana ʻia e ka hui ʻana i ka resin PVC me nā mea hoʻohui like ʻole. Hōʻike ia i nā waiwai mechanical maikaʻi loa, ke kūpaʻa kino kino, nā hiʻohiʻona hoʻopau ponoʻī, ke kū ʻana i ka wā maikaʻi, nā waiwai insulation uila ʻoi aku ka maikaʻi, ka maʻalahi o ka hana ʻana, a me ke kumu kūʻai haʻahaʻa, e hoʻolilo iā ia i mea kūpono no ka uea a me ke kaula uila a me ka sheathing.
ʻO ka resin PVC kahi polymer thermoplastic linear i hana ʻia e ka polymerization o nā monomers vinyl chloride. ʻO kāna mau hiʻohiʻona molecular:
(1) Ma ke ʻano he polymer thermoplastic, hōʻike ia i ka plasticity maikaʻi a me ka maʻalahi.
(2) ʻO ka loaʻa ʻana o nā paʻa polar C-Cl e hāʻawi i ka resin polarity ikaika, ka hopena o ka dielectric kiʻekiʻe (ε) a me ka dissipation factor (tanδ), ʻoiai e hāʻawi ana i ka ikaika dielectric kiʻekiʻe ma nā alapine haʻahaʻa. Hāʻawi pū kēia mau paʻa polar i nā ikaika intermolecular ikaika a me ka ikaika mechanical kiʻekiʻe.
(3) Hāʻawi nā ʻātoma chlorine i loko o ka hale molekala i nā waiwai pale ahi me nā kemika maikaʻi a me ke kū ʻana i ka wā. Eia naʻe, hoʻopau kēia mau chlorine atoms i ke ʻano crystalline, e alakaʻi ana i ka haʻahaʻa haʻahaʻa haʻahaʻa a me ke kū anuanu maikaʻi ʻole, hiki ke hoʻomaikaʻi ʻia ma o nā mea hoʻohui kūpono.
2. Nāʻano o ka PVC Resin
ʻO nā ʻano hana polymerization no PVC ka: polymerization suspension, polymerization emulsion, polymerization bulk, a me ka polymerization solution.
ʻO ke ʻano o ka polymerization suspension ka mea nui i kēia manawa i ka hana resin PVC, a ʻo ia ke ʻano i hoʻohana ʻia i nā noi uea a me nā kelepona.
Hoʻokaʻawale ʻia nā resins PVC-polymerized i ʻelua mau ʻano hana:
Loose-type resin (XS-type): Hōʻike ʻia e ka porous structure, plasticizer absorption kiʻekiʻe, plastification maʻalahi, ka mana hoʻoponopono kūpono, a me nā ʻāpana gel liʻiliʻi, e hoʻolilo iā ia i koho koho no nā kelepona a me nā noi kelepona.
Compact-type resin (XJ-type): Hoʻohana nui ʻia no nā huahana plastik ʻē aʻe.
3.Key waiwai o PVC
(1) Nā Pono Hoʻohui Uila: Ma ke ʻano he mea dielectric polar kiʻekiʻe, hōʻike ka resin PVC i nā waiwai insulation uila maikaʻi akā haʻahaʻa iki i ka hoʻohālikelike ʻia me nā mea non-polar e like me ka polyethylene (PE) a me ka polypropylene (PP). ʻOi aku ka nui o ka resistivity i ka 10¹⁵ Ω·cm; ma 25 ° C a me 50Hz pinepine, ka dielectric mau (ε) mai ka 3.4 a hiki i ka 3.6, e loli nui ana me ka hoʻololi ʻana o ka mahana a me ke alapine; ʻo ke kumu hoʻoheheʻe (tanδ) mai ka 0.006 a i ka 0.2. Noho kiʻekiʻe ka ikaika haʻihaʻi ma ka lumi wela a me ka pinepine o ka mana, ʻaʻole i hoʻopilikia ʻia e ka polarity. Eia nō naʻe, ma muli o kona poho dielectric kiʻekiʻe, ʻaʻole kūpono ʻo PVC no nā noi kiʻekiʻe-volt a me nā alapine kiʻekiʻe, e hoʻohana maʻamau ʻia ma ke ʻano he mea insulation no nā kaula haʻahaʻa a me waena-voltage ma lalo o 15kV.
(2) Ka Paʻa Paʻa: ʻOiai e hōʻike ana ka molecular structure i ke kūpaʻa ʻelemakule maikaʻi ma muli o nā paʻa chlorine-carbon, makemake ʻo PVC e hoʻokuʻu i ka hydrogen chloride i ka wā e hana ai ma lalo o ke kaumaha wela a me ka mechanical. Ke alakaʻi nei ka oxidation i ka hoʻohaʻahaʻa ʻana a i ʻole ka hoʻopili ʻana, e hoʻoneʻe ai i ke kala, embrittlement, emi nui i nā waiwai mechanical, a me ka emi ʻana o ka hana insulation uila. No laila, pono e hoʻohui ʻia nā stabilizer kūpono e hoʻomaikaʻi i ka pale ʻana i ka wā kahiko.
(3) Nā Waiwai Thermomechanical: Ma ke ʻano he polymer amorphous, aia ʻo PVC i ʻekolu mau kūlana kino ma nā wela like ʻole: ke kūlana aniani, ke kūlana kiʻekiʻe-elastic, a me ke kahe kahe. Me ka mahana hoʻololi aniani (Tg) ma kahi o 80 ° C a me ka mahana kahe e pili ana i 160 ° C, ʻaʻole hiki i ka PVC i kona kūlana aniani ma ka lumi wela ke hoʻokō i nā koi noi uea. Pono ka hoʻololi ʻana no ka loaʻa ʻana o ka elasticity kiʻekiʻe ma ke ana wela me ka mālama ʻana i ka wela a me ke kū anuanu. Hiki i ka hoʻohui ʻana o nā plasticizers ke hoʻoponopono pono i ka mahana hoʻololi aniani.
E pili anaONE WORLD (OW Cable)
Ma keʻano he mea hoʻolako nui i ka uea a me ke kaula maka, ONE WORLD (OW Cable) hāʻawi i nā pūhui PVC kiʻekiʻe no ka insulation a me nā noi sheathing, hoʻohana nui ʻia i nā uwea mana, nā uwea kūkulu hale, nā kaula kamaʻilio, a me nā uwila kaʻa. ʻO kā mākou mau mea PVC e hōʻike ana i ka hoʻopili uila maikaʻi loa, ka lapalapa ahi, a me ke kū'ēʻana i ka wā, e pili ana i nā kūlana honua e like me UL, RoHS, a me ISO 9001. Ua paʻa mākou i ka hāʻawiʻana i nā pono PVC kūpono a me ke kumu kūʻai i kūpono i nā pono o kā mākou mea kūʻai.
Ka manawa hoʻouna: Mar-27-2025