Polypropylene composite material as well as preparation method and application thereof

A technology of composite materials and polypropylene, which is applied in the application field of polypropylene composite materials and its preparation, and the preparation of seamless automotive dashboards, can solve the problems affecting the appearance of the whole vehicle, and achieve broad market prospects, excellent low-temperature impact performance, The effect of low VOC

Inactive Publication Date: 2014-10-22
7 Cites 18 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, there is a visible assembly line at the place where it matc...
View more


The invention discloses a polypropylene composite material for a car seamless dashboard. The polypropylene composite material consists of the following raw materials in percentage by weight: 50-70% of propylene-ethylene block co-polypropylene, 3-10% of polyethylene, 5-30% of a thermoplastic elastomer, 5-30% of talcum powder, 0.5-3% of a composite photo-thermal stabilizing agent, 0.1-1% of a lubricating agent, 0.5-4% of anti-scratch additives and 0-5% of a coloring agent. The polypropylene composite material for the car seamless dashboard can show excellent low-temperature impact resistance, particularly, can be used for meeting the multi-axial low temperature impact performance of fracture toughness at -35 DEG C, also has the characteristics such as scratch resistance, weather resistance and low total carbon, and can be used for meeting the requirements of a high-grade car seamless blasting dashboard. The invention also discloses a preparation method of the polypropylene composite material. The preparation method is simple to operate, does not need special equipment, is low in cost, and is suitable for industrial production.

Technology Topic

Weather resistanceStabilizing Agents +11


  • Polypropylene composite material as well as preparation method and application thereof
  • Polypropylene composite material as well as preparation method and application thereof
  • Polypropylene composite material as well as preparation method and application thereof


  • Experimental program(1)
  • Effect test(1)


[0037] Examples 1~5
[0038] The copolymer polypropylene (i.e. propylene-ethylene block copolymer polypropylene), polyethylene, talc, thermoplastic elastomer, scratch-resistant additives, lubricants, composite light and heat stabilizers and other components are in parts by weight in Table 1. The mixing ratio is uniformly mixed in the mixer to obtain the mixed material. The mixed materials are fed into the twin-screw extruder from the feeder. The temperature of the twin-screw extruder from the feeding section to the head is: 190℃, 210℃, 220℃, 220℃, 220℃, 220℃, 220℃, 230℃, the temperature of the die is 230℃. After high-speed shearing and mixing by a twin-screw extruder (screw speed of 800r/min), extrusion, drawing, air cooling, pelletizing, drying and packaging by the machine head, a polypropylene composite product is prepared.
[0039] Table 1
[0041] The raw material sources and main performance indexes used in Examples 1 to 5 are shown in Table 2:
[0042] Table 2


no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Anti-graffiti and scrubbing-resistant coating composition and preparation method thereof

ActiveCN113122091ALow VOCGood hydrophobic effect

Water-based crack art coating and preparation method thereof

PendingCN114213921ARich crack effectLow VOC

Waterborne polyurethane resin as well as preparation method and application thereof

ActiveCN111909354ALow VOClow environmental impact
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products