Complete production unit of long glass fiber reinforcement polypropylene material

Abstract

The invention relates to a complete production unit for long glass fiber reinforced polypropylene materials, which comprises a long glass fiber pre-heating device, a long glass fiber surface treating device, an immersion device, and a bunching and coating device. The long glass fiber pre-heating device is connected with the long glass fiber surface treating device in a transition manner; the long glass fiber surface treating device is connected with the immersion device in a transition manner; the immersion device is connected with the bunching and coating device in a transition manner; the long glass fiber surface treating device comprises a variable diameter pressing roll and a liquid coupling agent atomizer; the immersion device has a box-type structure; an extruder connector, a melting stock allocator, a front guide roll, a middle guide roll, a back guide roll, a pair of pressing rolls are arranged in the immersion device; a double screw extruder and the melting stock allocator form a melting stock conveying passage through the extruder connector; the front guide roll, the middle guide roll, the pair of pressing rolls and the back guide roll are connected sequentially in a transition manner; and a cooling device, a pulling device and a grain-sized dicing device are sequentially distributed at the outlet end of the bunching and coating device. Therefore, a production line is formed. The process is widely used for producing long glass fiber reinforced polypropylene materials.

Description

technical field [0001] The invention relates to a plant for the production of long glass fiber reinforced polypropylene material. Background technique [0002] Long glass fiber reinforced polypropylene material has become a new type of material with very rapid development due to its excellent performance and broad market application prospects. There are many kinds of preparation process devices for long glass fiber reinforced polypropylene materials, among which the device of melt impregnation method is relatively simple and practical, and it is a production process device with many industrial applications. However, this process device has disadvantages, because the viscosity of the polymer melt is relatively high, and the impregnation effect on the glass fiber is not very ideal. [0003] Therefore, the design of a new type of equipment for the production of long glass fiber reinforced polypropylene materials has good positive significance for improving the impregnation eff...

AI Technical Summary

Problems solved by technology

However, this process device has shortcomings, because the polymer melt has a high viscosity, and the impregnation effect on glass fiber is not very ideal.

Images