ʻO Polyvinyl chloride (PVC) kahi polymer i hana ʻia e ka polymerization o ka vinyl chloride monomer (VCM) i ke alo o nā mea hoʻomaka e like me nā peroxides a me nā azo compounds a i ʻole ma ke ʻano o ka polymerization radical free ma lalo o ka hana a ka mālamalama a i ʻole ka wela. ʻO PVC kahi mea polymer e hoʻohana ana i kahi ʻātoma chlorine e pani i kahi ʻātoma hydrogen i loko o ka polyethylene, a ʻo nā vinyl chloride homopolymers a me nā vinyl chloride copolymers i kapa ʻia he vinyl chloride resins.
Loaʻa i nā kaulahao molekala PVC nā ʻātoma chlorine polar ikaika me nā ikaika intermolecular kiʻekiʻe, e hoʻolilo i nā huahana PVC i ʻoi aku ka paʻakikī, ka paʻakikī, a me ke kani mechanical, a he pale ahi maikaʻi loa (ʻo ka pale ahi e pili ana i ka waiwai o kahi mea a i ʻole kahi mea ma hope o ka mālama ʻana e hoʻopaneʻe nui i ka laha ʻana o ka lapalapa); akā naʻe, ʻoi aku ka nui o kona mau waiwai dielectric constant a me ka dielectric loss angle tangent ma mua o ka PE.
Aia i loko o ka resin PVC kahi helu liʻiliʻi o nā pilina pālua, nā kaulahao lālā a me nā koena hoʻomaka i waiho ʻia i loko o ka hopena polymerization, a me nā ʻātoma chlorine a me hydrogen ma waena o nā ʻātoma kalapona ʻelua e pili kokoke ana, kahi e maʻalahi ai ka dechlorinated, e hopena ana i ka hopena degradation o PVC maʻalahi ma lalo o ka hana a ka mālamalama a me ka wela. No laila, pono nā huahana PVC e hoʻohui i nā mea hoʻopaʻa wela, e like me ka mea hoʻopaʻa wela calcium-zinc, ka mea hoʻopaʻa wela barium-zinc, ka mea hoʻopaʻa wela paʻakai kēpau, ka mea hoʻopaʻa tin organik, a pēlā aku.
Nā noi nui
Loaʻa nā ʻano PVC i nā ʻano like ʻole a hiki ke hana ʻia ma nā ʻano like ʻole, me ke kaomi ʻana, ka hoʻopuka ʻana, ka hoʻokomo ʻana, a me ka uhi ʻana. Hoʻohana pinepine ʻia nā plastik PVC i ka hana ʻana i nā kiʻiʻoniʻoni, ka ʻili hana, ka hoʻopaʻa ʻana o nā uea a me nā kaula, nā huahana paʻa, nā papahele, nā lako hale, nā lako haʻuki, a pēlā aku.
Hoʻokaʻawale ʻia nā huahana PVC i 3 mau ʻāpana: paʻa, semi-paʻa a palupalu. Hana ʻia nā huahana paʻa a me nā semi-paʻa me ka ʻole a me kahi liʻiliʻi o ka plasticizer, ʻoiai nā huahana palupalu e hana ʻia me ka nui o ka plasticizer. Ma hope o ka hoʻohui ʻana i nā plasticizer, hiki ke hoʻohaʻahaʻa ʻia ka mahana hoʻololi aniani, kahi e maʻalahi ai ka hana ʻana ma kahi mahana haʻahaʻa a hoʻonui i ka maʻalahi a me ka plasticity o ke kaulahao molekala, a hiki ke hana i nā huahana palupalu i maʻalahi i ka mahana o ka lumi.
1. Nā ʻaoʻao 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 like ʻole o nā paipu PVC, 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 ka PVC i ʻili aniani a kala paha o ka mānoanoa i kuhikuhi ʻia ma ka hoʻohana ʻana i ka kalena, a ʻo ke kiʻiʻoniʻoni i hana ʻia e kēia ʻano hana ua kapa ʻia ʻo ke kiʻiʻoniʻoni calendered. Hiki ke puhi ʻia nā mea maka granular PVC i loko o ke kiʻiʻoniʻoni me ka hoʻohana ʻana i nā mīkini hoʻoheheʻe puhi, a ʻo ke kiʻiʻoniʻoni i hana ʻia e kēia ʻano hana ua kapa ʻia ʻo ke kiʻiʻoniʻoni hoʻoheheʻe puhi. Hiki ke hoʻohana ʻia ke kiʻiʻoniʻoni no nā kumu he nui a hiki ke hana ʻia i loko o nā ʻeke, nā ʻaʻahu ua, nā lole papaʻaina, nā pale, nā mea pāʻani inflatable, a pēlā aku ma o ka ʻoki ʻana a me nā ʻano sila wela. Hiki ke hoʻohana ʻia nā kiʻiʻoniʻoni aniani ākea e kūkulu i nā hale ʻōmaʻomaʻo a me nā hale ʻōmaʻomaʻo plastik, a i ʻole e hoʻohana ʻia e like me nā kiʻiʻoniʻoni papahele.
4. Papa PVC
Hoʻohui ʻia me ka mea hoʻopaʻa, ka lubricant a me ka mea hoʻopihapiha, a ma hope o ke kāwili ʻana, hiki ke hoʻopuka ʻia ka PVC i loko o 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 uhi uea uila a i ʻole ka lima alapiʻi. Hoʻopili ʻia nā pepa calendered a kaomi wela ʻia e hana i nā pepa paʻa o nā mānoanoa like ʻole. Hiki ke ʻoki ʻia nā pepa i nā ʻano i makemake ʻia a laila hoʻopaʻa ʻia me ka ea wela me ka hoʻohana ʻana i nā koʻokoʻo wili PVC i loko o nā pahu mālama like ʻole, nā ducts a me nā pahu, a pēlā aku.
5. Nā huahana palupalu PVC
Me ka hoʻohana ʻana i ka extruder, hiki ke hoʻopuka ʻia i loko o nā hoses, nā kaula, nā uwea, a pēlā aku; me ka hoʻohana ʻana i ka mīkini hoʻoheheʻe injection me nā ʻano hoʻoheheʻe like ʻole, hiki ke hana ʻia i mau kāmaʻa plastik, nā kapuaʻi kāmaʻa, nā slippers, nā mea pāʻani, nā ʻāpana kaʻa, a pēlā aku.
6. Nā mea hoʻopili PVC
ʻO nā huahana PVC no ka hoʻopili ʻana no nā ʻano ipu like ʻole, nā kiʻiʻoniʻoni a me nā pepa paʻakikī. Hana nui ʻia nā ipu PVC no ka wai mineral, nā mea inu, nā ʻōmole hoʻonani, akā no ka hoʻopili ʻana i ka ʻaila i hoʻomaʻemaʻe ʻia.
7. ʻO ka ʻaoʻao PVC a me ka papahele
Hoʻohana nui ʻia ka ʻaoʻao PVC e pani i ka ʻaoʻao alumini, nā tile papahele PVC, koe wale nō kahi ʻāpana o ka resin PVC, ʻo ke koena o nā ʻāpana he mau mea hana hou ʻia, nā mea hoʻopili, nā mea hoʻopiha a me nā ʻāpana ʻē aʻe, i hoʻohana nui ʻia ma ka papahele o ke kahua mokulele a me nā wahi ʻē aʻe o ka lepo paʻakikī.
8. Nā huahana mea kūʻai aku PVC
Hiki ke loaʻa nā huahana PVC ma nā wahi āpau o ko kākou ola o kēlā me kēia lā. Hoʻohana ʻia ka PVC e hana i nā ʻili hana like ʻole no nā ʻeke ukana, nā huahana haʻuki e like me ka basketballs, nā pōpō soccer a me nā pōpō rugby. Hoʻohana ʻia hoʻi ia e hana i nā ʻaʻahu like ʻole a me nā kāʻei pale kūikawā. ʻO nā lole PVC no nā lole he mau lole omo maʻamau (ʻaʻohe pono o ka uhi ʻana) e like me nā ponchos, nā pālule pēpē, nā ʻaʻahu ʻili hana a me nā kāmaʻa ua like ʻole. Hoʻohana ʻia ka PVC i nā huahana haʻuki a me nā mea hoʻokipa e like me nā mea pāʻani, nā moʻolelo a me nā waiwai haʻuki.
Ka manawa hoʻouna: Iulai-19-2023