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Polypropylene composition material and preparation method thereof

A polypropylene composition and polypropylene technology, applied in the field of polypropylene composition materials and their preparation, can solve problems affecting material performance, increase equipment damage, etc., and achieve excellent mechanical properties, good dispersion, and excellent processing performance.

Inactive Publication Date: 2018-10-23
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used long-term antistatic agents are polyether antistatic agents, conductive carbon black or conductive carbon nanotubes. Although they can meet the long-term antistatic requirements, they seriously affect the performance of materials and greatly increase the risk of equipment damage.

Method used

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  • Polypropylene composition material and preparation method thereof
  • Polypropylene composition material and preparation method thereof
  • Polypropylene composition material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]

[0029] Add the weighed polypropylene, heat stabilizer, polyethylene wax together with antioxidant 1076 and antioxidant 168 to the high mixer and mix at 80 ° C for 7 minutes, then continue to add graphite powder, tetrabromobisphenol A, Mix for 5min, and finally send the uniformly mixed material into the twin-screw extruder through the precise metering feeding device for extrusion and granulation. ℃, four zones 260℃. The material is fully fused under the shearing, mixing and conveying of the screw, and finally it is extruded, drawn and cooled to make a product.

Embodiment 2

[0031]

[0032]

[0033] The weighed polypropylene, heat stabilizer, polyethylene wax, antioxidant DLTDP and antioxidant 168 were added to the high mixer and mixed at 70 ° C for 5 minutes, and then continued to add graphite powder, tetrabromobisphenol A, Mix for 10 minutes, and finally send the uniformly mixed material into a twin-screw extruder through a precisely metered feeding device for extrusion and granulation. ℃, four zones 270℃. The material is fully fused under the shearing, mixing and conveying of the screw, and finally it is extruded, drawn and cooled to make a product.

Embodiment 3

[0035]

[0036] Add the weighed polypropylene, heat stabilizer, oxidized polyethylene wax together with antioxidant 1010 and antioxidant 168 into a high-mixer and mix at 90 ° C for 10 minutes, then continue to add graphite powder, tetrabromobisphenol A Mix for another 5 minutes, and finally send the uniformly mixed material into a twin-screw extruder for extrusion and granulation through a precisely metered feeding device. 220°C, four zones 220°C. The material is fully fused under the shearing, mixing and conveying of the screw, and finally it is extruded, drawn and cooled to make a product.

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Abstract

The invention relates to the field of polymer modification, and concretely relates to a polypropylene composition material and a preparation method thereof. The polypropylene composition material comprises, by weight, 1000 parts of polypropylene, 1-5 parts of graphite powder, 1-5 parts of tetrabromobisphenol A, 2-5 parts of an antioxidant, 20-30 parts of a heat stabilizer and 10-20 parts of a lubricant. The tetrabromobisphenol A (used as an auxiliary antistatic agent) and the graphite powder (used as a main antistatic agent) are used in a compounding manner, have a good dispersibility in a resin matrix as a compounded antistatic agent, and can form a threadlike or a netty form; and the addition amount is very small, so the original mechanical and thermal properties of the material are notaffected. The composition material has a long-term antistatic property, the antistatic property does not attenuate with the increase of time, and the composition material also has no precipitation problem.

Description

technical field [0001] The invention relates to the field of polymer modification, in particular to a polypropylene composition material and a preparation method thereof. Background technique [0002] Mine-specific equipment is mostly used for underground mining operations or mineral transportation. During the whole process, dust is often flying, which is prone to explosion and fire hazards. Therefore, anti-static requirements are required for the plastic materials used in mine-specific equipment. However, the current antistatic plastic materials mostly use surfactant-type antistatic agents, which are non-permanent antistatic. Generally, the antistatic effect disappears after 1-2 years, and it needs to be in a high humidity environment to obtain better antistatic. After the antistatic effect disappears, the surface is easy to absorb dust, which greatly increases the risk of dust explosion. At present, the commonly used long-term antistatic agents are polyether antistatic ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/30C08K13/02C08K3/04C08K5/136C08K5/57C08K5/098B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08K2201/003C08K2201/014C08K2201/017C08L23/12C08L2201/04C08L23/06C08K13/02C08K3/04C08K5/136C08K5/57C08K5/098C08L23/30
Inventor 杨桂生李晓庆姚晨光
Owner HEFEI GENIUS NEW MATERIALS