| abstract |
The present invention relates to a kind of halogen-free polypropylene flame redardant reinforced composite of resistance to lithium battery electrolytes, it is characterized in that the component that contains following weight parts: polypropylene alloy 30-85, glass fibre 5-20, halogen-free flame retardants 10-40, oligomer 0.1-10, metal oxide 0.1-10, processing aid 0.1-10. Be prepared from and 1. prepare halogen-free flame retardants master batch through following steps: the each component of halogen-free flame retardants mixes, and adds in banbury, then adds oligomer, mixes devolatilization processing, granulation; 2. prepare polypropylene alloy: each polypropylene alloy component is mixed, melt extrude granulation; 3. the preparation of composite: the above-mentioned polypropylene alloy preparing, the halogen-free flame retardants master batch, metal oxide and the processing aid that prepare are mixed, add double screw extruder melt blending to extrude, tie rod pelletizing. |