Nkhani
Chifukwa chiyani timasankha mavavu a PVDF, zoyikira mapaipi ndi mapaipi?
Chifukwa chiyani timasankha mavavu a PVDF, zoyikira mapaipi ndi mapaipi?
Pali UPVC, CPVC, PPH, PVDF, mavavu a FRPP, zopangira mapaipi ndi mapaipi pamsika. Chifukwa chiyani timasankha zinthu za PVDF? Choyamba tiyenera kudziwa zotsatirazi za PVDF:
Kodi PVDF Material Characterism ndi chiyani?
Polyvinylidene fluoride, wotchedwa PVDF, ndi monoma wopangidwa ndi trifluoroethylene, hydrofluoric acid ndi nthaka ufa, ndipo pambuyo polymerization kupanga woyera crystalline olimba.
Pambuyo pakuwotcherera kwa matako otentha, cholumikiziracho chizikhazikika mu makina owotcherera otentha asungunula, ndikuziziritsa cholumikizira molingana ndi nthawi yozizirira zomwe zafotokozedwa m'malamulo osungira komanso kuziziritsa kwa makina owotcherera otentha. Mukaziziritsa, chepetsani kukanikiza mpaka ziro, ndiyeno chotsani chitoliro/zowonjezera zowotcherera.
Kodi PVDF Physical Properties ndi chiyani?
| Kanthu | Chigawo | Mtengo Wokhazikika | Standard |
| Kuchulukana | kg/m³ | 1770-1790 | ISO 1183 |
| Vicat | ℃ | ≥165 | ISO 2507 |
| Kulimba kwamakokedwe | MPa | ≥40 | Mtengo wa ISO 6259 |
| Mphamvu Zamphamvu (23 ℃) | KJ/m² | ≥160 | Chithunzi cha ISO 179 |
| Vertical Retraction Ration (150 ℃) | % | ≤2 | ISO 2505 |
1.Kukana kutentha:
PVDF chitoliro dongosolo ali wabwino matenthedwe bata, akhoza kukhalabe ntchito khola osiyanasiyana kutentha, apamwamba ntchito yaitali kutentha kwa 150 ° C kapena choncho.
2. Mphamvu zamakina:
Poyerekeza ndi zipangizo zina pulasitiki, PVDF vales, zovekera chitoliro ndi mapaipi ndi mkulu kumakoka mphamvu, kukana amakhudzidwa ndi abrasion kukana, ndipo akhoza kukhala olimba bwino ndi kulimba ngakhale pa kutentha otsika.
3.Dimensional bata:
PVDF vales, zovekera mapaipi ndi mapaipi amawonetsa kachulukidwe kakang'ono ka kukulitsa kwamafuta akamatenthedwa kapena kuzizira, kotero amatha kukhala olondola mokhazikika.
4. Kuuma ndi kuuma:
kuuma kwakukulu ndi kukhazikika bwino, kupanga chitolirocho kukhala chosavuta kupunduka komanso chosavuta kukhazikitsa.
Kodi mankhwala a PVDF ndi chiyani?
1.Chemical corrosion resistance:
PVDF vales, zovekera mapaipi ndi mapaipi ali ndi inertness mkulu mankhwala kwa zidulo ambiri, alkalis, mchere ndi zosungunulira organic ambiri, amene ali abwino mapaipi chuma kufalitsa zowononga TV m'munda wa makampani mankhwala.
2.Kusamatira:
yosalala pamwamba, yosavuta kutsatira zakuthupi, zomwe zingachepetse kudzikundikira kwa sikelo ndi kutsekeka kodabwitsa munjira yotumizira.
Kodi njira yolumikizira zinthu za PVDF ndi chiyani?
Mofanana ndi PPH, PVDF chitoliro dongosolo amamangidwa ndi otentha kusungunula nawonso, amenenso akhoza kugawidwa mu otentha kusungunula socket kuwotcherera ndi otentha kusungunula matako kuwotcherera. Masitepe enieni owotcherera a socket socket otentha mofanana ndi PPH nawonso.
Masitepe enieni otenthetsera otentha asungunula matako a PVDF mofanana ndi PPH nawonso, koma palinso zosiyana pazambiri zamachitidwe, tsatanetsatane monga pansipa:
| Khoma mwadzina makulidwe/MM | Kuyanjanitsa | Kutentha | Kusamutsa | Kuwotcherera | |
| 240 ℃ ± 8 ℃ Kutentha gawokutentha 240 ℃ ± 8 ℃ | |||||
| Kutalika kwa chotchinga pamwamba mkangano mbali kumapeto kwa nthawi yolumikizana (min) (malumikizidwe p=0.01N/mm2)/mm | Kutentha nthawi≈10e+40s | Nthawi yosinthira (max)/s | Kuwotcherera kuthamanga nthawi/mphindi | Kuzizira nthawi pansikuwotcherera kuthamanga (min)[p(0.10+0.01)N/ mm2 t≈1.2e+2min]/mphindi | |
| 6.0-10.0 | 0.5 ~ 1.0 | 95-140 | USD 4.00 | 5; 7 | 8.5-14 |
| 10.0 ~ 15.0 | 1.0-1.3 | 140-190 | USD 4.00 | 7; 9 | 14; 19 |
| 15.0-20.0 | 1.3-1.7 | 190-240 | USD 5.00 | 9;11 | 19; 25 |
| 20.0-25.0 | 1.7-2.0 | 240-290 | USD 5.00 | 11; 13 | 25; 32 |
Kufananiza Makhalidwe:
Kusiyana kwa U-PVC, PPH ndi C-PVC mankhwala pa ntchito kutentha ndi kulumikiza njira
| Kusiyana kwa U-PVC, PPH ndi C-PVC mankhwala pa ntchito kutentha ndi kulumikiza njira | |||
| Zipangizo | Kutentha kwakukulu kogwira ntchito | Kutentha Kogwiritsa Ntchito Mosalekeza kuyenera kukhala pansipa | Zolumikizidwa ndi |
| UPVC | 60 ℃ | 45 ℃ (0~45 ℃) | Simenti |
| PPH | 110 ℃ | 90 ℃ (0~90 ℃) | Hot meld socket kuwotcherera ndi kuwotcherera matako |
| Mtengo wa CPVC | 110 ℃ | 95 ℃ (0~95 ℃) | Simenti |
| Zithunzi za PVDF | 200 ℃ | 150 ℃ (-30 ~ 150 ℃) | Hot meld socket kuwotcherera ndi kuwotcherera matako |
Ndi makampani ati omwe amafunsira mavavu a PVDF, zopangira mapaipi ndi mapaipi?
1. Makampani opanga mankhwala:
Amagwiritsidwa ntchito kwambiri munjira zosiyanasiyana zamakina pamakina operekera madzimadzi, monga kunyamula asidi, ma alkali solution, oxidants, solvents ndi zinthu zina zowononga.
2. Semiconductor ndi zamagetsi zamagetsi:
M'chipinda choyera cha ultrapure madzi operekera madzi, komanso makina osungira ndi kugawa monga njira yopangira mipope.
3.Environmental protection engineering:
PVDF ma vale, zoyikira mapaipi ndi mapaipi amagwiritsidwa ntchito kwambiri pakukana dzimbiri komanso kuyanjana kwachilengedwe pakuthira madzi oyipa, kuchotsa mchere m'madzi a m'nyanja, komanso magawo ochiritsira komanso ochiritsira a reverse osmosis nembanemba.
4. Pharmaceuticals ndi biotechnology:
Mu ndondomeko kupanga amafuna kulamulira okhwima kuipitsidwa ndi kupewa zochitika tizilombo kuswana, PVDF payipi chifukwa cha ukhondo wake mkulu, sanali poizoni ndi odorless ndipo ntchito popereka madzi oyera, intermediates mankhwala kapena zakumwa zina.
5. Makampani opanga magetsi ndi nyukiliya:
Chifukwa cha kukana kwake kwa radiation komanso kukana kutentha kwambiri, imagwiritsidwanso ntchito m'madzi ozizira amagetsi ena a nyukiliya ndi zida zina zamagetsi.
Mwachidule, mapaipi a polyvinylidene fluoride akhala njira yabwino yopangira mapaipi ambiri apamwamba komanso ovuta chifukwa cha kukana kwake kwamankhwala, mphamvu yayikulu, kukana kutentha kwambiri komanso mphamvu zabwino zotchinjiriza magetsi.