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A kind of polypropylene composite material and its preparation method and application

A composite material, polypropylene technology, applied in coatings and other directions, can solve the problems of poor bonding force between inorganic fillers and resins, lack of anti-oxidation properties, affecting mechanical properties, etc. , the effect of uniform color

Active Publication Date: 2017-12-22
LIAONING LIAOJIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polypropylene composition does not have anti-oxidation properties, and the binding force between the inorganic filler and the resin is poor, which affects the mechanical properties

Method used

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  • A kind of polypropylene composite material and its preparation method and application
  • A kind of polypropylene composite material and its preparation method and application
  • A kind of polypropylene composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~3

[0043] (1) Weigh the raw materials of each component according to the ratio in Table 1, add them to a high-speed mixer for low-speed mixing, the mixing time is 1min, and the mixing temperature is 40°C;

[0044] (2) Extrusion and granulation: put the mixed material into an extruder, heat and extrude, cool and cut into pellets to obtain the polypropylene composite material. Among them, the heating temperature of the extruder is as follows: 155°C, 175°C, 195°C, 215°C, 225°C, and the head is 220°C. The screw speed was 320r / min to obtain the polypropylene composite material.

[0045] The use of the polypropylene composite material prepared in step (2) as an automobile steering wheel material includes the following steps: adding the polypropylene composite material prepared in step (2) to an injection molding machine, and simultaneously putting the metal skeleton into the injection mold , injection encapsulation, the injection temperature is 225°C, 230°C, 235°C, 240°C; the injectio...

Embodiment 4~6

[0050] (1) Weigh the raw materials of each component according to the ratio in Table 2, add them to a high-speed mixer for low-speed mixing, the mixing time is 3 minutes, and the mixing temperature is 30°C;

[0051] (2) Extrusion and granulation: put the mixed material into an extruder, heat and extrude, cool and cut into pellets to obtain the polypropylene composite material.

[0052] The use of the polypropylene composite material prepared in step (2) as an automobile steering wheel material comprises the following steps:

[0053]Add the polypropylene composite material prepared in step (2) into the injection molding machine, and at the same time put the titanium alloy metal skeleton into the injection mold, inject and encapsulate, and the injection temperature is 235°C, 240°C, 245°C, 250°C; The pressure is 45Mpa, the holding pressure is 40Mpa, the injection time is 3s, the holding time is 4s, the cooling time is 30s, the mold temperature is 60°C, and the finished automobile...

Embodiment 4

[0055] In the step (2) of Example 4, the heating temperature of the extruder is as follows: 150°C, 170°C, 190°C, 210°C, 220°C, and 215°C at the head. The screw speed is 200r / min.

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Abstract

The invention belongs to the field of organic high molecular compounds, and relates to a polypropylene composite material as well as a preparation method and use thereof. The polypropylene composite material is prepared from the following components in parts by weight: 80-100 parts of polypropylene, 10-20 parts of thermoplastic elastomers, 8-12 parts of low density polyethylene, 8-12 parts of inorganic filler, 5-8 parts of crystal whiskers, 0.3-0.6 part of an antioxidant, 0.3-0.6 part of oxidized polyethylene wax, 2-4 parts of polypropylene-grafted maleic anhydride and 0.1-0.3 part of a coupling agent. The polypropylene composite material disclosed by the invention can be used for preparing steering wheels. The product produced by using the composite material has the advantages of uniform surface gloss, uniform color, comfortable feel, good stress cracking resistance, good comprehensive mechanical property and the like.

Description

technical field [0001] The invention belongs to the field of organic polymer compounds, and relates to a polypropylene composite material and its preparation method and application. Background technique [0002] The steering wheel of a car is an important part of a car. It not only acts as an operating handle, but also absorbs most of the impact energy when a collision occurs during the driving process of the car, thereby ensuring the safety of the driver. The U.S. automobile safety standard FM-VSS203 stipulates that when a car is running at a speed of 24km / h, when a 35kg chest model is used to impact the steering wheel, the maximum load generated should be less than 11kN. Therefore, it is required that the material for the production of the steering wheel should have high impact strength and rigidity, corrosion resistance to gasoline, diesel oil, and sweat, good hand feeling, uniform surface gloss, non-glare, good dyeability and color fastness. Since there is a metal skele...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/12C08L23/06C08L51/06C08L53/02C08L23/00C08L23/16C08K13/04C08K7/08B29C45/14B29C45/77B29C45/78B29C45/76B29B9/06
CPCB29B9/06B29C45/14B29C45/76B29C45/77B29C45/78B29C2945/76498B29C2945/76531B29C2948/9258B29C2948/92704C08L23/14C08L2201/08C08L2205/035C08L2207/066C08L23/12C08L23/06C08L51/06C08K13/04C08K7/08
Inventor 孙俊山
Owner LIAONING LIAOJIE SCI & TECH
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