ʻO ka manawa mua loa i ʻike ʻia ai ka PVC ma ka ulia pōpilikia i ka makahiki 1872 e ke kemika Kelemania ʻo Eugen Baumann.Ua hana ʻia ʻo ia ma ke ʻano he ipu o ka vinyl chloride i waiho ʻia i ka lā kahi i polymerized.
I ka hopena o ka makahiki 1800, ua hoʻoholo kekahi hui o nā mea kālepa Kelemania e hoʻopukapuka a hana i ka nui o ka Acetylene, i hoʻohana ʻia i wahie i nā kukui.ʻO nā hoʻonā uila like ʻole ua lilo i mea maikaʻi loa a ua ʻoi koke i ka mākeke.Me kēia Acetylene i loaʻa i ka nui a me ke kumu kūʻai haʻahaʻa.
I ka makahiki 1912, ua hoʻāʻo kekahi kanaka Kelemania ʻo Fritz Klatte i ka mea waiwai a hoʻopili ʻia me ka waika hydrochloric (HCl).E hoʻopuka kēia hopena i ka vinyl chloride a ʻaʻohe kumu maopopo ua waiho ʻo ia ma kahi papa.ʻO ka vinyl chloride polymerized i ka manawa, ua loaʻa iā Klatte ka hui āna e hana nei, ʻo Greisheim Electron, e patent iā ia.ʻAʻole i loaʻa iā lākou kahi hoʻohana no ia mea a ua pau ka patent i ka makahiki 1925.
ʻO Waldo Semon e hana ana ma BF Goodrich, e ʻike ana i ka PVC.Ua ʻike ʻo ia he mea kūpono ia no nā pale ʻauʻau a waiho lākou i kahi patent.ʻO kekahi o nā hiʻohiʻona koʻikoʻi ʻo ka wai wai i alakaʻi i nā hihia hoʻohana he nui a ua ulu wikiwiki ʻo PVC i ka māhele mākeke.
He aha ka PVC granule a ma hea e hoʻohana ʻia ai?
ʻO PVC kahi mea maka i hiki ʻole ke hana wale ʻia ke hoʻohālikelike ʻia me nā mea maka.Hoʻokumu ʻia nā puʻupuʻu PVC granules ma ka hui pū ʻana o ka polymer a me nā mea hoʻohui e hāʻawi i ka hoʻolālā e pono ai no ka hoʻohana hope.
Hoʻokumu ʻia ka ʻaha kūkā i ka hoʻopaʻa ʻana i ka hoʻohui hoʻohui i nā ʻāpana o ka haneli o ka resin PVC (phr).Hoʻokumu ʻia ka pūhui ma ka hoʻohui ʻana i nā mea ʻai, a laila hoʻololi ʻia i loko o ka ʻatikala gelled ma lalo o ka mana o ka wela (a me ka shear).
Hiki ke hana ʻia nā pūhui PVC, me ka hoʻohana ʻana i nā plasticizers, i loko o nā mea maʻalahi, i kapa ʻia ʻo P-PVC.Hoʻohana nui ʻia nā ʻano PVC palupalu a maʻalahi paha i nā kāmaʻa, ʻoihana kelepona, papahele, hose, mea pāʻani a me ka hana lima.
Ua koho ʻia ʻo U-PVC nā pūhui me ka plasticizer ʻole no nā noi paʻa.Hoʻohana nui ʻia ʻo PVC paʻa no nā paipu, nā puka makani, nā uhi pā, etc.
He mea maʻalahi ka hana ʻana o nā pūhui PVC ma o ka hoʻoheheʻe ʻia ʻana, extrusion, ka puhi ʻana a me ke kaha kiʻi hohonu.Ua hana ʻo INPVC i nā pūhui PVC maʻalahi me ka kahe kiʻekiʻe loa, kūpono no ka hoʻoheheʻe ʻana, a me nā māka viscous loa no ka extrusion.
Ka manawa hoʻouna: Iune-21-2021
