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Polypropylene material as well as preparation method and application thereof

A polypropylene material and polypropylene technology, applied in the field of polypropylene materials and their preparation, can solve the problems of low production efficiency, high cost of MPP power tubes, toughness, tensile and bending properties cannot be simultaneously improved, etc. The effect of simplifying the production process and reducing the production cost

Pending Publication Date: 2022-05-06
CHINA ENERGY GRP NINGXIA COAL IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of high cost and low production efficiency of MPP power pipes in the prior art, and the problems that the toughness, tensile and bending properties cannot be simultaneously improved, and provide polypropylene materials and their preparation methods and applications

Method used

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  • Polypropylene material as well as preparation method and application thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0049] The raw material formula of polypropylene masterbatch includes: by weight, 100 parts of homopolypropylene, 0.15 parts of nucleating agent (0.1 part of α nucleating agent, 0.05 part of β nucleating agent), 0.35 parts of antioxidant (antioxidant 168 0.14 parts, antioxidant 1010 is 0.21 parts), inorganic filler (mica powder) 30 parts.

[0050] The processing technology includes: put the above components and (the weight ratio of the ball to material is 10:1, and the number average particle size of the zirconia balls is 9mm) into the ball milling jar at the same time, after sealing, fix the ball milling jar in the planetary ball mill, and the ball milling temperature The temperature is -30°C, the set speed is 800r / min, the material is taken out after starting the ball mill for 10 hours, the balls and the material are separated, and the twin-screw extruder (the length-to-diameter ratio of the twin-screw extruder is 35:1, and the screw speed is 600rpm , granulation temperature...

Embodiment 2

[0052] The raw material formula of polypropylene masterbatch includes: by weight, 100 parts of homopolypropylene, 0.12 parts of nucleating agent (0.08 part of α nucleating agent, 0.04 part of β nucleating agent), 0.3 part of antioxidant (168 parts of antioxidant 0.1 part, antioxidant 1010 is 0.2 part), inorganic filler (mica powder) 20 parts.

[0053] The processing technology includes: put the above components and zirconia balls (the weight ratio of the balls to materials is 5:1, and the number average particle size of the zirconia balls is 3mm) into the ball mill jar at the same time, and fix the ball mill jar in the planetary ball mill after sealing , the temperature of the ball mill is -40°C, the set speed is 600r / min, the material is taken out after starting the ball mill for 4 hours, the ball and the material are separated, and the twin-screw extruder (the length-to-diameter ratio of the twin-screw extruder is 35:1, the screw extruder The rotational speed is 600rpm, and ...

Embodiment 3

[0055] The raw material formula of polypropylene masterbatch includes: by weight, 100 parts of homopolypropylene, 0.16 parts of nucleating agent (0.106 parts of α nucleating agent, 0.053 parts of β nucleating agent), 0.4 parts of antioxidant (168 parts of antioxidant 0.16 parts, antioxidant 1010 is 0.24 parts), inorganic filler (mica powder) 40 parts.

[0056] The processing technology includes: put the above components and zirconia balls (the weight ratio of balls to materials is 15:1, and the number average particle size of zirconia balls is 15mm) into the ball milling jar at the same time, and then fix the ball milling jar in the planetary ball mill after sealing , the temperature of the ball mill is -20°C, the set speed is 1600r / min, the material is taken out after starting the ball mill for 16 hours, the ball and the material are separated, and the twin-screw extruder (the length-to-diameter ratio of the twin-screw extruder is 35:1, the screw extruder The rotational speed...

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Abstract

The invention relates to the field of polypropylene materials, and discloses a polypropylene material and a preparation method and application thereof. The polypropylene material comprises polypropylene master batch and co-polypropylene, and the polypropylene master batch comprises homo-polypropylene, a nucleating agent, an antioxidant and an inorganic filler; wherein the average particle size of the number of particles of the polypropylene master batch is 2-3mm. The rigidity and heat resistance of the polypropylene material can be improved, the production process can be simplified, the production cost is reduced, and the production period is shortened.

Description

technical field [0001] The invention relates to the field of polypropylene materials, in particular to a polypropylene material suitable for MPP power pipes and a preparation method and application thereof. Background technique [0002] MPP trenchless cable protection conduit is mainly used to protect cables in use and cables that will be penetrated in the next 10-30 years. Therefore, the service life of the pipeline is extremely important, and to ensure its service life, it is first necessary to ensure that the pipeline buried in the early stage meets certain quality requirements. 300-meter pipeline, and then lead the pipeline into the soil layer of the borehole, and make the about 200-300-meter-long MPP non-excavation cable protection conduit pass through the road and buildings underground by pulling and pushing the way, avoiding excavation of the road and damage to the building things. In the process of construction and use, the pipeline must withstand the strong tracti...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L23/16C08K3/34C08K5/18C08K5/523
CPCC08L23/12C08L23/14C08L2201/08C08L2203/18C08L2205/24C08K3/34C08K5/18C08K5/523
Inventor 李瑞龙宋程鹏焦旗郑鹏程张宇孟永智敬雪峰杨红野董园
Owner CHINA ENERGY GRP NINGXIA COAL IND CO LTD