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Scratch-resistant impact-resistant polypropylene material and preparation method thereof

A polypropylene material and scratch-resistant technology, which is applied in the field of scratch-resistant and impact-resistant polypropylene materials and their preparation, can solve the problems of increasing material cost and affecting material properties, so as to improve scratch resistance, improve mechanical properties, The effect of improved scratch resistance

Active Publication Date: 2020-01-07
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the ways to improve the scratch resistance of polypropylene materials are mostly focused on improving the surface hardness, improving surface toughness and adding scratch resistance additives, but these methods usually add a large amount of other substances inappropriately, seriously affecting The performance of the material, and makes the cost of the material increase significantly

Method used

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  • Scratch-resistant impact-resistant polypropylene material and preparation method thereof
  • Scratch-resistant impact-resistant polypropylene material and preparation method thereof
  • Scratch-resistant impact-resistant polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 75 parts of polypropylene, 15 parts of toughening agent, 10 parts of polyvinylidene fluoride, 0.1 part of plasticizer, 0.1 part of light stabilizer, and 0.4 part of antioxidant into the high-mixer and mix for 10 minutes; then mix the uniform material Add it into a twin-screw extruder, knead, extrude, cool and cut into pellets to obtain scratch-resistant and impact-resistant polypropylene material pellets; the extrusion temperature of each extrusion section in the twin-screw extruder is 150°C, 160°C, 175°C, 185°C, 190°C, 190°C, 190°C, 190°C, 190°C, 200°C.

Embodiment 2

[0026] Add 80 parts of polypropylene, 10 parts of toughening agent, 10 parts of polyvinylidene fluoride, 0.3 parts of plasticizer, 0.3 parts of light stabilizer, and 0.6 parts of antioxidant into the high-mixer and mix for 10 minutes; then mix the uniform material Add it into a twin-screw extruder, knead, extrude, cool and cut into pellets to obtain scratch-resistant and impact-resistant polypropylene material pellets; the extrusion temperature of each extrusion section in the twin-screw extruder is 155°C, 165°C, 170°C, 190°C, 195°C, 195°C, 195°C, 195°C, 195°C, 205°C.

Embodiment 3

[0028] Add 85 parts of polypropylene, 10 parts of toughening agent, 5 parts of polyvinylidene fluoride, 0.2 parts of plasticizer, 0.2 parts of light stabilizer, and 0.5 parts of antioxidant into the high-mixer and mix for 10 minutes; then mix the uniform material Add it into a twin-screw extruder, knead, extrude, cool and cut into pellets to obtain scratch-resistant and impact-resistant polypropylene material pellets; the extrusion temperature of each extrusion section in the twin-screw extruder is 160°C, 175°C, 185°C, 195°C, 200°C, 200°C, 200°C, 200°C, 200°C, 210°C.

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Abstract

The invention discloses a scratch-resistant impact-resistant polypropylene material and a preparation method thereof. The scratch-resistant impact-resistant polypropylene material is prepared from thefollowing components: polypropylene, a toughening agent, polyvinylidene fluoride, a plasticizer, a light stabilizer and an antioxidant; the polypropylene is polypropylene random copolymer, the content of polyethylene in the polypropylene random copolymer is greater than or equal to 7%, and the tensile elongation at break is greater than or equal to 350%. According to the scratch-resistant impact-resistant polypropylene material prepared by the preparation method disclosed by the invention, the polypropylene random copolymer material with high ductility and low crystallinity is used, so that the material has excellent shearing-rebounding effect, and a certain amount of the compounded toughening agent is added, so that the toughness of the material is further improved, and the scratch depthof the material when the material is scratched is reduced; meanwhile, the polyvinylidene fluoride component is added into the material, so that the surface smoothness of the material is improved, thefrictional resistance is reduced, and the scratch resistance of the material is improved.

Description

technical field [0001] The invention relates to the technical field of modified materials, in particular, the invention relates to a scratch-resistant and impact-resistant polypropylene material and a preparation method thereof. Background technique [0002] Scratch resistance refers to the ability of a material to resist visible scratches caused by external forces. When this resistance is not strong enough, plastic deformation occurs on the surface of the material, and the surface is destroyed and scratches occur. Polypropylene material has been widely used in automobiles, electrical appliances, daily necessities and other fields due to its excellent physical properties, and it has a tendency to expand to new fields. However, the surface of polypropylene is easily scratched by external forces, which greatly affects the appearance of the product, and the scratches on the surface of the product will lead to stress concentration, which limits its application. Therefore, impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L27/16C08L23/08C08L23/16C08L51/06C08L23/06C08K5/00C08K5/134C08K5/526C08K5/372
CPCC08L23/12C08K2201/014C08L2205/025C08L2205/035C08L2207/14C08L27/16C08L23/0815C08L23/16C08L51/06C08L23/06C08K5/00C08K5/1345C08K5/526C08K5/372
Inventor 杨桂生赵鑫
Owner HEFEI GENIUS NEW MATERIALS
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