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A production system of polypropylene composite material for automotive interior

A technology for composite materials and automotive interiors, which is applied in the field of polypropylene composite material production systems for automotive interiors, can solve the problems of reducing VOC content, difficulty in cutting materials, and low VOC removal efficiency, so as to reduce VOC content and improve processing Efficiency, the effect of increasing the amount of feed

Active Publication Date: 2021-02-09
安徽纽麦特新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a polypropylene composite material production system for automotive interiors, by feeding the material The screw is set at an inclination to solve the problem of difficult feeding; the mixture is subjected to two-stage vacuum VOC removal under different temperature environments, effectively reducing the VOC content in polypropylene composite materials

Method used

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  • A production system of polypropylene composite material for automotive interior
  • A production system of polypropylene composite material for automotive interior
  • A production system of polypropylene composite material for automotive interior

Examples

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Embodiment 1

[0042] to combine Figure 1~4 , a polypropylene composite material production system for automotive interiors in this embodiment includes a feeding unit 100 , an extrusion unit 200 , a vacuum unit 300 , a traction unit 700 and a pelletizing unit 800 .

[0043] The feeding unit 100 includes a hopper 110, the lower part of the hopper 110 is provided with a feeding trough 120, and the feeding screw 121 is arranged obliquely in the lower feeding chute 120, and the lower part of the feeding chute 120 is connected with a feeding port 130; the feeding screw 121 passes through the feeding motor 122 drive, the angle a between the feeding screw 121 and the horizontal direction is 15° to 45°, and in this embodiment, the angle a=30°, the set inclination angle can effectively avoid the occurrence of light-weight or highly-filled mixtures in the hopper 110 No blanking, difficult blanking and bridging phenomenon, and the inclined feeding screw 121 has no dead angle, which avoids the accumula...

Embodiment 2

[0052] to combine Figure 1~4 , a kind of polypropylene composite material production system for automobile interior decoration of the present embodiment, comprises feeding unit 100, extruding unit 200 and vacuumizing unit 300; Extruding unit 200 comprises feeding screw 201 and barrel 202, and feeding screw 201 is set In the barrel 202; the extrusion unit 200 includes a solid conveying section 210, a melting section 220, a reaction section 230 and a vacuum exhaust section 240 along the movement direction of the mixture. In addition, the barrel 202 of the extrusion unit 200 moves along the mixture There are 10 heating zones in sequence, which are the 1st to 10th heating zones. It should be noted that since the compound is a gradual transition process between the various processing stages in the extrusion unit 200, the extrusion unit 200 The corresponding relationship between each segment and each heating zone is a rough correspondence, not an absolute correspondence in spatial ...

Embodiment 3

[0075] The content of this embodiment is basically the same as that of Embodiment 1, except that in the vacuum exhaust section 240, the temperature of the seventh heating zone in this embodiment is 227°C, the temperature of the eighth heating zone is 197°C, and the temperature of the ninth heating zone is The zone temperature is 197°C, that is, the temperature of the 8th heating zone is the same as that of the 9th heating zone, so that the temperature of the mixture when passing through the buffer section 242 can be quickly and steadily reduced to the same temperature as the temperature of the 9th heating zone, so that the subsequent two The vacuuming of the stage vacuum 320 is more stable to the removal process of VOC.

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Abstract

The invention discloses a production system for a polypropylene composite material for automotive trims, and belongs to the technical field of processing and production of polypropylene high polymer materials. The production system comprises a charging unit, an extruding unit, a vacuumizing unit, a traction unit and a dicing unit. The charging unit comprises a hopper, a discharging groove is formed below the hopper, and a feeding screw is obliquely arranged in the discharging groove; the extruding unit is used for melting, reacting and extruding an elongated polypropylene composite material, is connected with the vacuumizing unit, and vacuumizes the mixture to effectively remove VOC in the mixture; and the traction unit and the dicing unit drag and dice the elongated polypropylene composite material. On the one hand, the polypropylene mixture is fed smoothly, and on the other hand, the content of VOC in the polypropylene composite material is reduced effectively.

Description

technical field [0001] The invention relates to the technical field of processing and production of polypropylene polymer materials, and more specifically relates to a production system of polypropylene composite materials for automotive interior decoration. Background technique [0002] Polypropylene, abbreviated as PP, is a thermoplastic resin obtained by polymerizing propylene. PP is the most widely used variety in automotive plastics, and has the advantages of low density, good performance and easy processing. At present, the processing method of polypropylene raw materials for automobiles is mainly processed through extruders. At present, many automotive interior parts use polypropylene series composite materials, which are used for large interior parts such as instrument panels, door guards, and decorative panels. However, during the use of automobiles, volatile organic compounds (VOC) in polypropylene materials will be released. These volatile organic compounds incl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/25B29C48/285B29C48/76
Inventor 周彬陈炜
Owner 安徽纽麦特新材料科技股份有限公司
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