Mtengo wa PVC57
Mtengo wa PVC K57,
PVC utomoni ntchito kupanga thovu bolodi,
Utomoni wa PVC wokhala ndi mtengo wa K wa 55-68 ungagwiritsidwe ntchito popanga thovu lolimba, ndiko kuti, zinthu zolimba za PVC zopanda thovu, zomwe ndizosiyana ndi mtengo wa K womwe udaperekedwa kale komanso mabuku.Ma resin a PVC okhala ndi ma K a 69-77 awonetsedwa kuti ndi oyenera kupanga thovu zofewa.Pali njira zambiri zopangira PVC utomoni, kuyimitsidwa njira, emulsion njira ndi chochuluka polymerization wa PVC utomoni zilipo zipangizo thovu mankhwala, kawirikawiri kuyimitsidwa ndi chochuluka polymerization wa PVC utomoni ndi koyenera.PVC copolymers ndi ma polima omezanitsidwa (ma polima granular) alinso ndi processability wabwino ndipo sagwiritsidwa ntchito kawirikawiri chifukwa cha mitengo.
Polyvinyl Chloride, wotchedwa PVC, ndi imodzi mwa mitundu ya pulasitiki yopangidwa ndi mafakitale, zomwe zilipo panopa ndi zachiwiri kwa polyethylene.Polyvinyl chloride yakhala ikugwiritsidwa ntchito kwambiri m'makampani, ulimi komanso moyo watsiku ndi tsiku.Polyvinyl chloride ndi polima pawiri polymerized ndi vinilu kloride.Ndi thermoplastic.ufa woyera kapena wopepuka wachikasu. Amasungunuka mu ketoni, esters, tetrahydrofurans ndi ma hydrocarboni a chlorine.Wabwino kukana mankhwala.Kusakhazikika kwamafuta ndi kukana kuwala, kupitilira 100 ℃ kapena kutentha kwa nthawi yayitali kudayamba kuwola hydrogen chloride, kupanga pulasitiki kumafunika kuwonjezera stabilizer.Kutsekemera kwamagetsi ndikwabwino, sikungawotche.
Gawo S-700Amagwiritsidwa ntchito makamaka popanga mapepala owonekera, ndipo amatha kukulungidwa kukhala mapepala olimba komanso osasunthika a phukusi, zinthu zapansi, filimu yolimba yopangira maswiti (mapepala opaka maswiti kapena filimu yonyamula ndudu), ndi zina zotero. filimu yolimba pang'ono, pepala, kapena kapamwamba kowoneka bwino kwa phukusi.Kapena ikhoza kubayidwa kuti ipange zolumikizira, ma valve, zida zamagetsi, zida zamagalimoto ndi zotengera.
Kufotokozera
Gulu | PVC S-700 | Ndemanga | ||
Kanthu | Mtengo wa chitsimikizo | Njira yoyesera | ||
Digiri yapakati pa polymerization | 650-750 | GB/T 5761, Zowonjezera A | K mtengo 58-60 | |
Kuchulukira kowoneka, g/ml | 0.52-0.62 | Q/SH3055.77-2006, Zowonjezera B | ||
Zosasinthika (madzi ophatikizidwa),%, ≤ | 0.30 | Q/SH3055.77-2006, Zowonjezera C | ||
mayamwidwe a pulasitiki a 100g utomoni, g, ≥ | 14 | Q/SH3055.77-2006, Zowonjezera D | ||
Zotsalira za VCM, mg/kg ≤ | 5 | GB/T 4615-1987 | ||
Kuwonetsa% | 0.25mm mwa ≤ | 2.0 | Njira 1: GB/T 5761, Zowonjezera B Njira2: Q/SH3055.77-2006, Zowonjezera A | |
0.063mm mwa ≥ | 95 | |||
Nambala ya nsomba, No./400cm2, ≤ | 30 | Q/SH3055.77-2006, Zowonjezera E | ||
Chiwerengero cha tizidutswa ta zonyansa, No., ≤ | 20 | GB/T 9348-1988 | ||
Kuyera (160ºC, mphindi 10 kenako), %, ≥ | 75 | GB/T 15595-95 |
Kupaka
(1) atanyamula: 25kg ukonde / mas thumba, kapena kraft pepala thumba.
(2) Kutsitsa kuchuluka: 680Bags/20′container, 17MT/20′container.
(3) Kutsitsa kuchuluka: 1120Bags/40′container, 28MT/40′container.