Cetyltrimethyl ammonium chloride(OTAC) as modifier

modified montmorillonite(OTAC-MMT) was prepared via cation exchange. 4

4'-diamino diphenyl methane bismaleimide(MBMI)

3

3'-diallyl bisphenol A(BBA) and bisphenol-A diallyl ether(BBE) were used to synthesize MBAE matrix

OTAC-MMT/PES-MBAE composites were prepared from MBAE

OTAC-MMT and PES by in-situ polymerization method

respectively. The XRD result revealed that the interlayer spacing of OTAC-MMT increase obviously

which compared with Na-MMT. The SEM micro-morphology displayed that the layer structure of OTAC-MMT was more apparent and dispersed uniformly

the surface of composites were more rough than that of MBAE

PES and MBAE matrix presented two-phase

crazing and microcrack which direct in different directions were appeared

exhibited ductile fracture. When the mass fraction of OTAC-MMT was 2%

PES content was 4%

the impact strength and the bending strength of OTAC-MMT/PES-MBAE were 14.54 kJ·m-2 and 143.12 MPa

enhance 55.5% and 47.2% than that of MBAE matrix

respectively. The dielectric constant and loss of the composite material showed a little increase while OTAC-MMT and PES exist

but OTAC-MMT could reduce the negative impacts of PES.