Epoxy as a reactive plasticizer for improving polycarbonate
A relatively new way to improve processibility thermoplastics is via the use of crosslinkable monomers which can act as reactive plasticizers and reduce the viscosity in the early stage of… Expand Save Alert Blends of epoxy - amine resins with poly(phenylene oxide) as processing aids and toughening agents: I. Uncured systems
Epoxy as a reactive plasticizer for improving polycarbonate
An oligomer of a diepoxy (diglycidyl ether of bisphenol-A, DGEBA) and an aromatic diamine (MCDEA) have been used as reactive plasticizers for polycarbonate (PC). A small amount of PC chain scission occurred during this blending process, probably due to transesterification of the PC carbonate group by the hydroxyl group of the DGEBA oligomer.
Epoxy as a reactive plasticizer for improving polycarbonate
Liang, George ; Cook, Wayne ; Tcharkhtchi, A ; Sautereau, Henri. / Epoxy as a reactive plasticizer for improving polycarbonate processibility.In: European Polymer
Epoxy as a reactive plasticizer for improving polycarbonate
An oligomer of a diepoxy (diglycidyl ether of bisphenol-A, DGEBA) and an aromatic diamine (MCDEA) have been used as reactive plasticizers for polycarbonate (PC). A small amount of PC chain...
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Epoxy resins and diallylic monomers are the most com- mon thermosetting monomers that have been used as reactive plasticizers for thermoplastics such as poly (2,6- dimethyl-1,4-phenylene ether) (PPE) [1–3,5,15] and poly(- methyl methacrylate) (PMMA) [8,16], because these monomers have a relatively low viscosities which aids the processing, high
- Can epoxy be used as a reactive plasticizer?
- Epoxy has been used commonly as a reactive plasticizer in previous studies , , , but it possesses much higher viscosity in comparison with ordinary reactive plasticizers and needs longer time to be cured , . For instance, the processing time of PPO with 20–60 wt.% epoxy was 7 h at 200 °C .
- Which plasticizer is used to plasticize PPO?
- In the past two decades, the reactive plasticizers, such as diallyl phthalate (DAP) and epoxy resins, have been employed to plasticize poly (phenylene oxide) (PPO) , , , , poly (vinyl chloride) (PVC) , , , PC , , and so on.
- Why do we need reactive plasticizers?
- The addition of the reactive plasticizers not only reduces the processing temperature but also maintains the high performances of the original polymers , , and the migration of plasticizer can also be inhibited after polymerization . However, there still exist some problems in using these reactive plasticizers.
- Why did Liang et al choose DAP as reactive plasticizer during processing PVC?
- Liang et al. chose DAP as the reactive plasticizer during processing PVC , , . The content of DAP was lowered to 10 wt.% and the thermal treatment time was shortened to 30 min in PVC/DAP blends, but the properties of the blends with a content of DAP less than 30 wt.% were not provided .
- How to reduce BAPC molecular weight and blending with processable polymers?
- Besides reducing BAPC molecular weight and/or blending with processable polymers , adding inert plasticizers like dibutyl phthalate (DBP) or dioctyl phthalate (DOP) is an efficient method to lower the melt viscosity and processing temperature .
