Chidule:Chosinthira cha PVC chokhala ndi zipolopolo zapakatikati--ACR, chosinthirachi chimakhala ndi zotsatira zabwino pakuwongolera pulasitiki ndi mphamvu ya PVC.
Mawu osakira:Plasticization, mphamvu yamphamvu, PVC modifier
Wolemba:Wei Xiaodong, Shandong Jinchangshu New Material Technology Co., Ltd., Weifang, Shandong
1 Mawu Oyamba
Zida zomangira mankhwala ndi mtundu wachinayi watsopano wa zipangizo zamakono zomangira pambuyo pa zitsulo, matabwa ndi simenti, makamaka kuphatikizapo mapaipi apulasitiki, zitseko za pulasitiki ndi mazenera, zipangizo zomanga madzi, zipangizo zokongoletsera, etc. Zopangira zazikulu ndi polyvinyl chloride (PVC).
PVC amagwiritsidwa ntchito makamaka ngati zomangira ndi mbiri yake pulasitiki chimagwiritsidwa ntchito m'nyumba ndi panja zitseko ndi mazenera a nyumba ndi makampani zokongoletsera, ndi makhalidwe abwino monga kuteteza kutentha, kusindikiza, kupulumutsa mphamvu, kutchinjiriza phokoso ndi zolimbitsa mtengo, etc. mawu oyamba, mankhwalawa apangidwa mofulumira.
Komabe, mbiri ya PVC ilinso ndi zovuta zina, monga kufooka kwa kutentha pang'ono, kutsika kwamphamvu, komanso zovuta pakukonza.Chifukwa chake, zomwe zimakhudzidwa ndi zinthu za PVC ziyenera kuwongolera.Kuonjezera zosintha ku PVC kumatha kukulitsa kulimba kwake, koma zosinthazi ziyenera kukhala ndi izi: Kutsika kwa kutentha kwa magalasi;pang'ono yogwirizana ndi PVC utomoni;zimagwirizana ndi kukhuthala kwa PVC;palibe zotsatira zazikulu pazowoneka ndi makina a PVC;zabwino zanyengo komanso kukulitsa kutulutsa kwa nkhungu.
Ma PVC omwe amagwiritsidwa ntchito kwambiri ndi chlorinated polyethylene (CPE), polyacrylates (ACR), methyl methacrylate-butadiene-styrene terpolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS), ethylene ndi vinyl acetate copolymer (EVA), ethylene ndi vinyl acetate copolymer (EVA), (EPR), etc.
Kampani yathu yapanga ndi kupanga chosinthira pazigoba cha PVC JCS-817.Zosinthazi zimakhala ndi zotsatira zabwino pakukweza pulasitiki ndi mphamvu ya PVC.
2 Analimbikitsa Mlingo
Kuchuluka kwa modifier JCS-817 ndi 6% pa magawo 100 olemera a PVC resin.
3 Kuyerekeza kwa magwiridwe antchito pakati pa zosintha zosiyanasiyana ndi zosintha izi JCS-817
1. Konzani zoyambira zoyeserera za PVC molingana ndi chilinganizo chomwe chili mu Gulu 1
Table 1
| Dzina | Zigawo polemera |
| 4201 | 7 |
| 660 | 2 |
| PV218 | 3 |
| AC-6A | 3 |
| Titaniyamu dioxide | 40 |
| PVC (S-1000) | 1000 |
| Organic Tin Stabilizer | 20 |
| Calcium carbonate | 50 |
2. Yesani kuyerekezera mphamvu ya mphamvu: Phatikizani zomwe zili pamwambapa ndikusakaniza ndi 6% ya kulemera kwa PVC ndi zosintha zosiyanasiyana za PVC.
Zomwe zimapangidwira zidayesedwa ndi mphero yotseguka yozungulira iwiri, vulcanizer yosalala, kupanga zitsanzo, ndi makina oyesera achilengedwe chonse komanso kuyesa kosavuta kwamitengo monga momwe tawonera mu Gulu 2.
Table 2
| Kanthu | Njira yoyesera | Zoyeserera | Chigawo | Ma index aukadaulo (JCS-817 6phr) | Ma index aukadaulo (CPE 6phr) | Ma index aukadaulo (Yerekezerani chitsanzo ACR 6phr) |
| Mphamvu (23 ℃) | Mtengo wa GB/T 1043 | 1A | KJ/mm2 | 9.6 | 8.4 | 9.0 |
| Mphamvu (-20 ℃) | Mtengo wa GB/T 1043 | 1A | KJ/mm2 | 3.4 | 3.0 | Palibe |
Kuchokera pazomwe zili mu Table 2, tinganene kuti mphamvu ya JCS-817 mu PVC ndiyabwino kuposa ya CPE ndi ACR.
3. Yesani kuyerekeza kwa ma rheological properties: Phatikizani zomwe zili pamwambazi ndikuwonjezera 3% ya kulemera kwa PVC kumagulu osiyanasiyana a PVC modifiers ndikusakaniza.
Zinthu zapulasitiki zoyezedwa ndi Harper rheometer zikuwonetsedwa mu Gulu 3.
Table 3
| Ayi. | Nthawi yopangira pulasitiki (S) | Balance torque (M[Nm]) | Liwiro lozungulira (rpm) | Kutentha kwa mayeso (℃) |
| JCS-817 | 55 | 15.2 | 40 | 185 |
| CPE | 70 | 10.3 | 40 | 185 |
| ACR | 80 | 19.5 | 40 | 185 |
Kuchokera pa Table 2, nthawi ya pulasitiki ya JCS-817 mu PVC ndi yocheperapo kuposa ya CPE ndi ACR, mwachitsanzo, JCS-817 idzapangitsa kuti PVC ikhale yochepa.
4 Mapeto
Mphamvu yamphamvu ndi kupanga pulasitiki kwa chinthu ichi JCS-817 mu PVC ndiyabwino kuposa CPE ndi ACR pambuyo potsimikizira mayeso.
Nthawi yotumiza: Jun-15-2022