| 초록 |
We have successfully developed a novel microporous zeolite filled HDPE composite to apply the composite in the fields of sports wears, baby diaper, and other hygienic wears. The composite was prepared by a conventional compounding procedure using a twin-screw extruder and by a following simple stretching in a tensile test machine. Zeolite particles are well dispersed in HDPE matrix without a significant aggregation. However, adhesion between zeolite and HDPE seems to be weak. The Young’s modulus values gradually increase, but the yield stress, the impact strength, and the elongation at break decrease with increasing zeolite content in composites. Extremely increased air holes upon stretching and upon increased zeolite content may be one of the major factors affecting the above poor properties. In addition, zeolite is acting as a non-adhering filler in HDPE matrix. The mechanism of the formation of porous film upon stretching has been investigated for HDPE/zeolite composite based on morphology. It is suggested that the size, number, and aspect ratio of the micropores be controlled due to zeolite contents in matrix and the degree of stretching. |
