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A kind of scratch-resistant polypropylene material and preparation method thereof

A polypropylene material, scratch-resistant technology, applied in the field of modified polypropylene, can solve the problems of heavy odor, poor scratch resistance, ductile/brittle damage, etc.

Active Publication Date: 2018-07-17
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the scratch resistance of the polypropylene material itself, especially the polypropylene material filled with talc powder, is poor, and the material will yield under the action of pressing force and sliding force or transverse (lateral) force, resulting in ductility / brittleness Destruction, thereby causing scratches on the surface of the part
In scratches, the uneven surface creates non-uniform light scattering and "scratch whitening", limiting the use of polypropylene in parts where scratch resistance is required
In order to solve this problem, the method of adding a scratch-resistant agent is often used to improve the scratch-resistant effect of polypropylene materials, but the traditional scratch-resistant agents are mainly erucamide substances and high polysiloxane substances. The storage itself has disadvantages such as heavy odor, and it is used in automotive interior parts, which will affect its VOC and odor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 80 parts of polypropylene, 0.5 parts of phenolic heat stabilizer 1010, 0.5 parts of lubricant EBS, 20 parts of talc powder with a particle size of 600 μm, 0.2 parts of titanate coupling agent NDZ109, 0.2 parts of white oil 36#, 0.1 parts ZrB 2 Melt, mix and disperse in a twin-screw extruder with an aspect ratio of 40:1 and a temperature of 200°C. After all raw materials are blended, extruded and granulated, the polypropylene compound of this example is obtained.

Embodiment 2

[0029] 40 parts of polypropylene, 0.5 parts of phenolic heat stabilizer 1010, 0.8 parts of lubricant EBS, 60 parts of talc powder with a particle size of 780 μm, 0.4 parts of silane coupling agent KH-550, 0.3 parts of white oil 32#, 0.6 parts ZrB 2 Melt, mix and disperse in a twin-screw extruder with an aspect ratio of 52:1 and a temperature of 220°C. After all raw materials are blended, extruded and granulated, the polypropylene compound of this example is obtained.

Embodiment 3

[0031] 100 parts of polypropylene, 0.1 parts of heat stabilizer 168, 0.2 parts of lubricant EBS, 0.2 parts of silane coupling agent KH-570, 0.5 parts of white oil 15#, 0.3 parts of ZrB 2 Melt, mix and disperse in a twin-screw extruder with an aspect ratio of 35:1 and a temperature of 170°C. After all raw materials are blended, extruded and granulated, the polypropylene compound of this example is obtained.

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Abstract

The invention relates to a scratch-resistant polypropylene material and a preparation method thereof. 0-1 part of agent, 0-0.5 part of white oil, 0.1-1 part of ZrB2. In the present invention, the inorganic material ZrB2 is added into the polypropylene material as a scratch-resistant agent, and its scratch-resistant effect can reach the first level of five-finger scratch; In a long-term high-temperature aging environment, it is easy to precipitate and migrate to the surface, and there are problems such as odor and VOC, which can be used for automotive interior parts.

Description

technical field [0001] The invention belongs to the technical field of modified polypropylene, in particular to a scratch-resistant polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene material is widely used in automotive interior and exterior trims due to its advantages of low price and light weight. However, the scratch resistance of the polypropylene material itself, especially the polypropylene material filled with talc powder, is poor, and the material will yield under the action of pressing force and sliding force or transverse (lateral) force, resulting in ductility / brittleness Destruction, thereby causing scratches on the surface of the workpiece. In scratches, the uneven surface produces uneven light scattering and "scratch whitening", which limits the use of polypropylene materials in parts where scratch resistance is required. In order to solve this problem, the method of adding a scratch-resistant agent is often ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K3/34C08K3/38
CPCC08K3/34C08K3/38C08K13/02C08K2201/003C08L23/12
Inventor 杨桂生计娉婷
Owner HEFEI GENIUS NEW MATERIALS
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