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Prodn. of thermoplastic foam with syntactic foam structure
Prodn. of thermoplastic foam with syntactic foam structure
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机译:产品具有句法泡沫结构的热塑性泡沫
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摘要
A process for the prodn. of thermoplastic foam with a syntactic foam structure on extruders or injection moulding machines from commercial bulk plastics with melting or softening temps. of 375-450 K (I), such as LDPE, HDPE, high-mol. wt. EVA copolymers with vinyl acetate (VAC) contents of less than 30%, PP or PS, using gas- or liq.-filled microspheres which expand on heating. The novelty is that 5-50 wt% of soft and/or low- melting plastic or unvulcanised rubber (II) is added to (I) before extrusion or injection moulding.
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