Kakaretso:PVC modifier e nang le core-shell structure-—ACR, modifier ena e na le phello e ntle ho ntlafatseng polasetiki le matla a tšusumetso ea PVC.
Mantsoe a sehlooho:Plasticization, matla a tšusumetso, phetoho ea PVC
Ka:Wei Xiaodong, Shandong Jinchangshu New Material Technology Co., Ltd., Weifang, Shandong
1 Selelekela
Lisebelisoa tsa ho haha lik'hemik'hale ke mofuta oa bone o mocha oa thepa ea kaho ea mehleng ea morao-rao ka mor'a tšepe, lehong le samente, haholo-holo ho kenyelletsa liphaephe tsa polasetiki, mamati a polasetiki le lifensetere, thepa ea ho haha metsi, lisebelisoa tse khabisitsoeng, joalo-joalo Thepa e ka sehloohong e tala ke polyvinyl chloride (PVC).
PVC e sebelisoa haholo-holo e le thepa ea kaho 'me litlaleho tsa eona tsa polasetiki li sebelisoa haholo mamating a ka hare le a ka ntle le lifensetere tsa mehaho le indasteri ea mekhabiso, e nang le litšobotsi tse babatsehang tse kang ho boloka mocheso, ho tiisa, ho boloka matla, ho kenya molumo le litšenyehelo tse itekanetseng, joalo-joalo selelekela, sehlahisoa se entsoe ka potlako.
Leha ho le joalo, litlaleho tsa PVC le tsona li na le mathata a mang, joalo ka mocheso o tlase oa brittleness, matla a tšusumetso e tlaase, le mathata a ho sebetsa.Ka hona, thepa ea tšusumetso le thepa ea polasetiki ea PVC e tlameha ho ntlafatsoa.Ho kenyelletsa li-modifiers ho PVC ho ka ntlafatsa ka katleho ho thatafala ha eona, empa li-modifiers li lokela ho ba le litšobotsi tse latelang: Mocheso o tlaase oa phetoho ea khalase;karolo e itseng e lumellana le PVC resin;e lumellana le viscosity ea PVC;ha ho na phello e kholo ho thepa e bonahalang le ea mechine ea PVC;thepa e ntle ea boemo ba leholimo le katoloso e ntle ea ho lokolloa ha hlobo.
Liphetoho tse sebelisoang hangata tsa PVC ke chlorinated polyethylene (CPE), polyacrylates (ACR), methyl methacrylate-butadiene-styrene terpolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS), ethylene a vinyl acetate copolymer (EVA) (EPR), joalo-joalo.
Khamphani ea rona e ntlafalitse le ho hlahisa sebopeho sa mantlha sa khetla ea PVC JCS-817.Phetoho ena e na le phello e ntle ho ntlafatseng polasetiki le matla a tšusumetso ea PVC.
2 E khothalelitsoeng Tekanyo
Palo ea modifier JCS-817 ke 6% ka likarolo tse 100 tsa boima ba PVC resin.
3 Papiso ea tlhahlobo ea ts'ebetso lipakeng tsa li-modifiers tse fapaneng le modifier ena JCS-817
1. Lokisetsa lisebelisoa tsa motheo tsa tlhahlobo ea PVC ho latela foromo e ho Lethathamo la 1
Lethathamo la 1
| Lebitso | Likarolo ka boima |
| 4201 | 7 |
| 660 | 2 |
| PV218 | 3 |
| AC-6A | 3 |
| Titanium dioxide | 40 |
| PVC (S-1000) | 1000 |
| Organic Tin Stabilizer | 20 |
| Calcium carbonate | 50 |
2. Papiso ea teko ea matla a tšusumetso: Kopanya metsoako e ka holimo 'me u kopanye motsoako le 6% ea boima ba PVC le li-modifiers tse fapaneng tsa PVC.
Mehaho ea mochini e ne e lekantsoe ka leloala le bulehileng la lirolara tse peli, vulcanizer e bataletseng, ho etsa sampole, le mochini oa tlhahlobo oa bokahohle le sehlahlobi se bonolo sa sepakapaka joalo ka ha ho bonts'itsoe ho Lethathamo la 2.
Lethathamo la 2
| Ntho | Mokhoa oa teko | Maemo a teko | Yuniti | Li-index tsa tekheniki (JCS-817 6phr) | Li-index tsa tekheniki (CPE 6phr) | Li-index tsa tekheniki (Bapisa mohlala oa ACR 6phr) |
| Tšusumetso (23℃) | GB/T 1043 | 1A | KJ/mm2 | 9.6 | 8.4 | 9.0 |
| Tšusumetso (-20℃) | GB/T 1043 | 1A | KJ/mm2 | 3.4 | 3.0 | Ha ho letho |
Ho tsoa ho data ho Lethathamo la 2, ho ka fihleloa qeto ea hore matla a tšusumetso ea JCS-817 ho PVC a molemo ho feta a CPE le ACR.
3. Papiso ea teko ea thepa ea rheological: Kopanya metsoako e ka holimo 'me u kenye 3% ea boima ba PVC ho motsoako o nang le liphetoho tse fapaneng tsa PVC ebe o kopanya.
Thepa ea polasetiki e lekantsoeng ke Harper rheometer e bonts'itsoe ho Lethathamo la 3.
Lethathamo la 3
| Che. | Nako ea polasetiki (S) | Torque ea ho leka-lekana (M[Nm]) | Lebelo la ho potoloha (rpm) | Teko ea mocheso (℃) |
| JCS-817 | 55 | 15.2 | 40 | 185 |
| CPE | 70 | 10.3 | 40 | 185 |
| ACR | 80 | 19.5 | 40 | 185 |
Ho tloha ho Lethathamo la 2, nako ea polasetiki ea JCS-817 ho PVC e ka tlaase ho ea CPE le ACR, ke hore, JCS-817 e tla fella ka maemo a tlaase a ho sebetsa bakeng sa PVC.
4 Qetello
Matla a tšusumetso le thepa ea polasetiki ea sehlahisoa sena JCS-817 ho PVC e molemo ho feta CPE le ACR ka mor'a ho netefatsa tlhahlobo.
Nako ea poso: Jun-15-2022