Citation: XU Xi, GONG Xiaoyi. EFFECT OF DISPERSION OF MICA IN MATRIX ON YOUNG'S MODULUS OF MICA FILLED POLYETHYLENE*[J]. Chinese Journal of Polymer Science, ;1991, 9(2): 108-112. shu

EFFECT OF DISPERSION OF MICA IN MATRIX ON YOUNG'S MODULUS OF MICA FILLED POLYETHYLENE*

XU Xi ,
GONG Xiaoyi

Received Date: 10 January 1990

The correlation between Young's modulus of mica-filled high density polyethylene (HDPE), low density polyethylene(LDPE) and the state of dispersion of plasma-treated mica in the polymer matrices was studied. The modulus and the number average diameter of mica aggregates in matrix were determined with tensile testing and image analysis respectively. The interface structure of the filler/matrix and the bulk structure of matrix were examined through the dielectric spectrometry, differential scanning calorimetry(DSC) and dynamic viscoelastic spectrometry.The results show that the Young's modulus of the filled polyethylene depends to a great extent upon the state of dispersion of filler in matrix,but it is indeoendent of the interface structure and bulk structure.The better the dispersion,the higher the Young's modulus.
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