Zida zopangira mapaipi a PVC
Zida zopangira mapaipi a PVC,
Utoto wa PVC, PVC kupanga chitoliro,
S-1000 polyvinyl kolorayidi utomoni amapangidwa ndi kuyimitsidwa polymerization ndondomeko ntchito vinilu kolorayidi monoma monga zopangira.Ndi mtundu wa polima pawiri ndi kachulukidwe wachibale wa 1.35 ~ 1.40.Malo ake osungunuka ndi pafupifupi 70 ~ 85 ℃.Kusakhazikika kwamafuta komanso kukana kuwala, kupitirira 100 ℃ kapena nthawi yayitali pansi padzuwa hydrogen chloride imayamba kuwola, kupanga pulasitiki kumafunika kuwonjezera zolimbitsa thupi.Zogulitsazo ziyenera kusungidwa m'malo owuma komanso olowera mpweya wabwino.Malinga ndi kuchuluka kwa plasticizer, kufewa kwa pulasitiki kumatha kusinthidwa, ndipo utomoni wa phala ukhoza kupezedwa ndi emulsion polymerization.
Kalasi S-1000 angagwiritsidwe ntchito kupanga zofewa filimu, pepala, manmade chikopa, mipope, zooneka bala, bellow, chingwe chitetezo mapaipi, kulongedza filimu, yekha ndi zofewa sundry katundu.
Parameters
| Gulu | PVC S-1000 | Ndemanga | ||
| Kanthu | Mtengo wa chitsimikizo | Njira yoyesera | ||
| Digiri yapakati pa polymerization | 970-1070 | GB/T 5761, Zowonjezera A | K mtengo 65-67 | |
| Kuchulukira kowoneka, g/ml | 0.48-0.58 | Q/SH3055.77-2006, Zowonjezera B | ||
| Zosasinthasintha (madzi akuphatikizidwa),%, ≤ | 0.30 | Q/SH3055.77-2006, Zowonjezera C | ||
| Mayamwidwe apulasitiki a 100g utomoni, g, ≥ | 20 | Q/SH3055.77-2006, Zowonjezera D | ||
| Zotsalira za VCM, mg/kg ≤ | 5 | GB/T 4615-1987 | ||
| Kuwonetsa% | 2.0 | 2.0 | Njira 1: GB/T 5761, Zowonjezera B Njira 2: Q/SH3055.77-2006, Zowonjezera A | |
| 95 | 95 | |||
| Nambala ya nsomba, No./400cm2, ≤ | 20 | Q/SH3055.77-2006, Zowonjezera E | ||
| Chiwerengero cha tizidutswa ta zonyansa, Ayi., ≤ | 16 | GB/T 9348-1988 | ||
| Kuyera (160ºC, 10minutes kenako), %, ≥ | 78 | GB/T 15595-95 | ||
Mapaipi a PVC amapangidwa ndi extrusion ya PVC yopangira, ndipo nthawi zambiri amatsata njira zomwezo zomwe zimagwira chitoliro cha extrusion:
1.Kudyetsa zopangira ufa wotchedwa resin ndi filler mu PVC twin screw extruder;
2. Kusungunuka ndi kutentha m'madera angapo a extruder;
3. Kutuluka mu ufa kuti upangire chitoliro;
4.Kuzizira kwa chitoliro chopangidwa ndi mawonekedwe (mwa kupopera madzi pa chitoliro);ndi
5. Kudula mapaipi a PVC mpaka kutalika komwe mukufuna.
Zida zopangira mapaipi a PVC ndi utomoni ndi zodzaza (makamaka calcium carbonate, kapena zomwe zimadziwika kuti miyala).Kusakaniza kokhazikika ndi 1 kilogalamu (kg) ya utomoni ndi 1 kilogalamu ya filler.Njira zopangira nthawi zambiri zimakhala zokha, ogwira ntchito akudyetsa zopangira kumayambiriro kwa ndondomekoyi, kuyang'anira kutentha mu ndondomekoyi ndikuyang'ana chinthu chomaliza chifukwa cha zolakwika zoonekeratu asananyamuke ndi kutumiza kwa makasitomala.Ogwira ntchito onse ndi ophunzitsidwa bwino ndipo amatha kugwira ntchito zonsezi mwaluso.Chinthu chachikulu chopangira mapaipi a PVC ndi chinthu chaufa chotchedwa PVC resin.
