ʻO ka Polyvinyl chloride (PVC) he polymer i hana ʻia e ka polymerization o ka vinyl chloride monomer (VCM) i mua o nā mea hoʻomaka e like me nā peroxides a me nā pūhui azo a i ʻole ma ke ʻano o ka polymerization radical manuahi ma lalo o ka hana o ka māmā a me ka wela.ʻO ka PVC kahi mea polymer e hoʻohana ana i ka atom chlorine e pani i kahi ʻātoma hydrogen i polyethylene, a ʻo ka vinyl chloride homopolymers a me ka vinyl chloride copolymers i kapa ʻia he vinyl chloride resins.
Loaʻa i nā kaulahao molekala PVC nā ʻātoma polar chlorine ikaika me nā ikaika intermolecular kiʻekiʻe, e hoʻolilo i nā huahana PVC i ʻoi aku ka paʻakikī, paʻakikī, a me ke kani mechanical, a loaʻa ka hoʻopaʻa ahi maikaʻi loa (e pili ana ka hoʻopaʻa ahi i ka waiwai i loaʻa i kahi mea a i ʻole kekahi mea ma hope o ka mālama ʻana iā ia. lohi nui i ka laha ana o ke ahi);akā naʻe, ʻoi aku ka nui o kona dielectric mau a me ka dielectric loss angle tangent waiwai ma mua o ka PE.
Aia ka PVC resin i kahi helu liʻiliʻi o nā paʻa pālua, nā kaulahao lālā a me nā koena hoʻomaka i waiho ʻia i ka hopena polymerization, me ka chlorine a me ka hydrogen atoms ma waena o nā ʻātoma kalapona ʻelua e pili ana, e maʻalahi ka dechlorinated, e hopena i ka hopena degradation o PVC ma lalo o ka hana. o ka malamalama a me ka wela.No laila, pono nā huahana PVC e hoʻohui i nā mea hoʻomehana wela, e like me ka calcium-zinc heat stabilizer, barium-zinc heat stabilizer, alakaʻi paʻakai wela stabilizer, organik tin stabilizer, etc.
Nā noi nui
Hele mai ka PVC i nā ʻano like ʻole a hiki ke hana ʻia i nā ʻano like ʻole, e like me ke kaomi ʻana, extruding, injecting, a me ka uhi.Hoʻohana pinepine ʻia nā plastik PVC i ka hana ʻana i nā kiʻiʻoniʻoni, ka ʻili kūlohelohe, ka insulation o nā uea a me nā kaula, nā huahana paʻa, ka papahele, nā lako, nā mea haʻuki, etc.
Hoʻokaʻawale ʻia nā huahana PVC i 3 mau ʻano: rigid, semi-rigid a palupalu.Hoʻopili ʻia nā huahana paʻa a me nā semi-rigid me ka ʻole a i ʻole ka liʻiliʻi o ka plasticizer, aʻo nā huahana palupalu e hana ʻia me ka nui o ka plasticizer.Ma hope o ka hoʻohui ʻana i nā plasticizers, hiki ke hoʻohaʻahaʻa ʻia ka mahana hoʻololi aniani, kahi e maʻalahi ai ke kaʻina hana ma kahi haʻahaʻa haʻahaʻa a hoʻonui i ka maʻalahi a me ka plasticity o ke kaulahao mole, a hiki ke hana i nā huahana palupalu i hiki ke maʻalahi i ka lumi wela.
1. Nā kiʻi PVC
Hoʻohana nui ʻia no ka hana ʻana i nā puka a me nā puka makani a me nā mea mālama ikehu.
2. Nā paipu PVC
He nui nā ʻano paipu PVC, ka hana maikaʻi loa a me ka laulā o ka hoʻohana ʻana, a noho i kahi kūlana koʻikoʻi ma ka mākeke.
3. Nā kiʻiʻoniʻoni PVC
Hiki ke hana ʻia ʻo PVC i kiʻi ʻoniʻoni ʻoniʻoni a ʻulaʻula paha o ka mānoanoa kikoʻī me ka hoʻohana ʻana i ka kalena, a ʻo ke kiʻi i hana ʻia e kēia ʻano i kapa ʻia ʻo calendered film.Hiki ke puhi ʻia nā mea waiwai PVC granular i loko o ke kiʻiʻoniʻoni me ka hoʻohana ʻana i nā mīkini hoʻoheheʻe puhi, a ʻo ke kiʻi i hana ʻia e kēia ʻano i kapa ʻia ʻo blow molding film.Hiki ke hoʻohana ʻia ke kiʻiʻoniʻoni no nā kumu he nui a hiki ke hana ʻia i loko o nā ʻeke, nā lole ua, nā pākaukau, nā pale, nā mea pāʻani inflatable, etc.Hiki ke hoʻohana ʻia nā kiʻi ʻoniʻoni ākea ākea e kūkulu i nā hale ʻōmaʻomaʻo a me nā ʻōmaʻomaʻo plastik, a i ʻole e hoʻohana ʻia e like me nā kiʻiʻoniʻoni papahele.
4. Papa PVC
Hoʻohui ʻia me ka stabilizer, lubricant a me ka mea hoʻopihapiha, a ma hope o ka hui ʻana, hiki ke hoʻokuʻu ʻia ʻo PVC i nā paipu paʻakikī caliber like ʻole, nā paipu i hoʻohālikelike ʻia a me nā paipu corrugated me ka extruder, a hoʻohana ʻia e like me ka downpipe, ka paipu wai inu, ka uila uila casing a i ʻole ke alapiʻi lima.Hoʻopili ʻia nā pepa calendered a paʻi wela e hana i nā ʻāpana paʻa o nā mānoanoa like ʻole.Hiki ke ʻoki ʻia nā ʻāpana i nā ʻano i makemake ʻia a hoʻopaʻa ʻia me ka ea wela me ka hoʻohana ʻana i nā koʻokoʻo wili PVC i loko o nā pahu hoʻopaʻa kūʻokoʻa kemika, nā ducts a me nā ipu, etc.
5. Nā huahana palupalu PVC
Ke hoʻohana nei i ka extruder, hiki ke hoʻokuʻu ʻia i loko o nā hoses, nā kaula, nā uea, etc.;me ka hoʻohana ʻana i ka mīkini hoʻoheheʻe injection me nā ʻano like ʻole, hiki ke hana ʻia i nā kāmaʻa plastik, nā kāmaʻa wāwae, nā kāmaʻa, nā mea pāʻani, nā ʻāpana kaʻa, etc.
6. Nā mea hoʻopili PVC
ʻO nā huahana PVC no ka hoʻopili nui ʻana no nā ʻano pahu like ʻole, kiʻiʻoniʻoni a me ka pepa paʻa.Hoʻokumu nui ʻia nā pahu PVC no ka wai mineral, nā mea inu, nā ʻōmole hoʻonaninani, akā no ka ʻeke aila hoʻomaʻemaʻe.
7. PVC siding a me ka papahele
Hoʻohana nui ʻia ʻo PVC siding e hoʻololi i ka alumini siding, nā ʻāpana papahele PVC, koe wale nō kahi ʻāpana o ka resin PVC, ʻo ke koena o nā ʻāpana he mea hana hou, adhesives, fillers a me nā mea ʻē aʻe, i hoʻohana nui ʻia i ka papahele terminal airport a me nā wahi ʻē aʻe o ka paʻakikī. lepo.
8. Nā huahana mea kūʻai PVC
Hiki ke loaʻa nā huahana PVC ma nā wahi āpau i ko mākou ola i kēlā me kēia lā.Hoʻohana ʻia ʻo PVC no ka hana ʻana i nā ʻili ʻokoʻa like ʻole no nā ʻeke ukana, nā huahana haʻuki e like me ke kinipōpō, nā pōpō pōpeku a me nā pōpō pōpō.Hoʻohana ʻia ia e hana i nā ʻaʻahu a me nā kāʻei mea pale kūikawā.ʻO nā lole PVC no ka ʻaʻahu, ʻo ia nā lole ʻoluʻolu (ʻaʻole koi ʻia) e like me nā ponchos, nā pālule pēpē, nā ʻili ʻili a me nā kāmaʻa ua like ʻole.Hoʻohana ʻia ʻo PVC i nā huahana haʻuki a me nā mea leʻaleʻa e like me nā mea pāʻani, nā moʻolelo a me nā mea haʻuki.
Ka manawa hoʻouna: Iulai-19-2023