Abstract:A PVC modifier ine core-shell chimiro--ACR, iyi modifier ine mhedzisiro yakanaka pakuvandudza plasticization uye simba rekuita rePVC.
Keywords:Plasticization, simba rekuita, PVC modifier
Na:Wei Xiaodong, Shandong Jinchangshu New Material Technology Co., Ltd., Weifang, Shandong
1. Nhanganyaya
Mishonga yekuvaka yemakemikari ndiyo yechina yemhando itsva yezvigadzirwa zvekuvaka zvemazuva ano mushure mesimbi, matanda uye simenti, kunyanya kusanganisira mapaipi epurasitiki, magonhi epurasitiki nemahwindo, kuvaka zvinhu zvisingasviki mvura, zvinhu zvekushongedza, nezvimwewo.
PVC inonyanya kushandiswa sechinhu chekuvaka uye mapepa ayo epurasitiki anoshandiswa zvakanyanya mudzimba uye kunze kwemasuo uye mahwindo ezvivakwa uye indasitiri yekushongedza, ine hunhu hwakanakisa hwakadai sekuchengetedza kupisa, kuvhara, kuchengetedza simba, kuvharisa inzwi uye zvine mwero mutengo, nezvimwewo. sumo, chigadzirwa chakagadzirwa nekukurumidza.
Nekudaro, maPVC profiles anewo zvimwe zvakaipira, senge yakaderera tembiricha brittleness, kuderera kwesimba simba, uye kugadzirisa matambudziko.Naizvozvo, maitiro ekuita uye plasticizing zvimiro zvePVC zvinofanirwa kuvandudzwa.Kuwedzera magadzirirwo kuPVC kunogona kunyatso kuvandudza kuomarara kwayo, asi magadzirirwo anofanirwa kuve neanotevera maitiro: Kudzika kwegirazi tembiricha yekuchinja;chikamu chinopindirana nePVC resin;inofanidza viscosity yePVC;hapana mhedzisiro yakakosha pane inooneka uye mechanical zvinhu zvePVC;yakanaka mamiriro ekunze uye yakanaka mold kuburitsa kuwedzera.
PVC anowanzo shandiswa magadzirirwo ekuchinja ari chlorinated polyethylene (CPE), polyacrylates (ACR), methyl methacrylate-butadiene-styrene terpolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS), ethylene a vinyl acetate copolymer (EVA), ethylene a vinyl acetate copolymer (EVA), (EPR), nezvimwewo.
Kambani yedu yakagadzira uye yakagadzira core-shell chimiro PVC modifier JCS-817.Iyi modhifita ine mhedzisiro yakanaka pakuvandudza plasticization uye simba rekuita rePVC.
2 Recommended Dosage
Huwandu hwekugadzirisa JCS-817 ndeye 6% pa100 huremu zvikamu zvePVC resin.
3 Performance bvunzo kuenzanisa pakati akasiyana modifiers uye iyi modifier JCS-817
1. Gadzirira PVC test base material maererano neformula iri muTable 1
Tafura 1
| Zita | Zvikamu neuremu |
| 4201 | 7 |
| 660 | 2 |
| PV218 | 3 |
| AC-6A | 3 |
| Titanium Dioxide | 40 |
| PVC (S-1000) | 1000 |
| Organic Tin Stabilizer | 20 |
| Calcium carbonate | 50 |
2. Muedzo wekuenzanisa kwesimba rekukanganisa: Sanganisa maumbirwo ari pamusoro uye sanganisa musanganiswa ne6% yehuremu hwePVC nePVC modifiers dzakasiyana.
Iwo emakanika zvivakwa akayerwa neaviri-roller akavhurika chigayo, flat vulcanizer, sampuli kugadzira, uye wepasirese yekuyedza muchina uye yakapusa beam impact tester sezvakaratidzwa muTable 2.
Tafura 2
| Item | Test method | Mamiriro ekuedza | Unit | Technical indexes (JCS-817 6phr) | Technical indexes (CPE 6phr) | Technical indexes (Kuenzanisa muenzaniso ACR 6phr) |
| Kubata (23℃) | GB/T 1043 | 1A | KJ/mm2 | 9.6 | 8.4 | 9.0 |
| Kukanganisa (-20 ℃) | GB/T 1043 | 1A | KJ/mm2 | 3.4 | 3.0 | Hapana |
Kubva pane data iri muTafura 2, zvinogona kugumiswa kuti simba rekuita reJCS-817 muPVC riri nani pane reCPE neACR.
3. Muedzo wekuenzanisa rheological properties: Sanganisa maumbirwo ari pamusoro apa uye wedzera 3% yehuremu hwePVC kune musanganiswa nePVC modifiers dzakasiyana uye wozosanganisa.
Iyo plasticizing zvivakwa zvakayerwa neHarper rheometer inoratidzwa muTafura 3.
Tafura 3
| Aihwa. | Nguva yepurasitiki (S) | Balance torque (M[Nm]) | Kutenderera kumhanya (rpm) | Kuyedza tembiricha (℃) |
| JCS-817 | 55 | 15.2 | 40 | 185 |
| CPE | 70 | 10.3 | 40 | 185 |
| ACR | 80 | 19.5 | 40 | 185 |
Kubva paTafura 2, nguva yepurasitiki yeJCS-817 muPVC ishoma pane yeCPE neACR, kureva, JCS-817 ichaita kuti pave nemamiriro ekugadzirisa ePVC.
4 Mhedziso
Kusimba kwesimba uye plasticizing chivakwa chechigadzirwa ichi JCS-817 muPVC iri nani pane CPE neACR mushure mekuongororwa kwebvunzo.
Nguva yekutumira: Jun-15-2022