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High-performance polypropylene composite material and preparation method thereof

A composite material and polypropylene technology, applied in chemical instruments and methods, tungsten compounds, inorganic chemistry, etc., can solve problems such as poor low-temperature impact performance, low heat distortion temperature, and large molding shrinkage, and achieve a large effective contact area , Excellent comprehensive performance, high toughness and rigidity

Active Publication Date: 2021-10-26
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polypropylene is a thermoplastic synthetic resin with excellent performance. It has the advantages of light weight, safety, excellent processing performance, impact strength, flex resistance and good electrical insulation performance. It is currently widely used in automobiles, electronic appliances, and home appliances. , but polypropylene also has some disadvantages such as large molding shrinkage, poor low-temperature impact performance, low heat distortion temperature, and rigidity and toughness cannot be guaranteed at the same time. In actual production, inorganic fillers and tougheners are often used to modify polypropylene materials, but now The toughness and rigidity of some inorganic fillers and tougheners modified polypropylene materials are limited, which limits the application of polypropylene in special fields

Method used

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  • High-performance polypropylene composite material and preparation method thereof
  • High-performance polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A high-performance polypropylene composite material, the following raw materials are weighed by weight: polypropylene (PP EA5074) 82.9 parts, spiral linear WS 2 10 parts of nanomaterials, 6 parts of toughening agent (POE8200), 0.4 parts of heat stabilizer (Irganox1010), 0.4 parts of light stabilizer (V703), 0.3 parts of processing aid (calcium stearate), add the above materials into high-speed mixing After 4 minutes of dry mixing in the machine, it is added to a twin-screw extruder for melt extrusion and granulation to obtain a high-performance polypropylene composite material. The working temperature of each section of the twin-screw extruder is: the temperature of the feed section is 175°C, The temperature of the compression section is 185°C, the temperature of the plasticizing section is 185°C, the temperature of the homogenization section is 190°C, and the temperature of the die mouth is 195°C.

[0026] Wherein, the helical linear WS 2 Nanomaterials are prepared by...

Embodiment 2

[0032] A high-performance polypropylene composite material, the following raw materials are weighed by weight: polypropylene (PP EA5074) 82.7 parts, spiral linear WS 2 12 parts of nanomaterials, 4 parts of toughening agent (POE8842), 0.5 part of heat stabilizer (Irganox1010), 0.5 part of light stabilizer (V703), 0.3 part of processing aid zinc stearate; put each component into a high-speed mixer After 4 minutes of dry mixing in the middle, add it to a twin-screw extruder for melt extrusion and granulation to obtain a high-performance polypropylene composite material. The section temperature is 180°C, the plasticizing section temperature is 185°C, the homogenizing section temperature is 195°C, and the die opening temperature is 195°C.

[0033] Wherein, the helical linear WS 2 Nanomaterials are prepared by chemical vapor deposition, and the specific steps are as follows:

[0034] a. Change WS 2 The powder is placed in an alumina boat and placed in the heating center of the qu...

Embodiment 3

[0039] A high-performance polypropylene composite material, the following raw materials are weighed by weight: polypropylene (PP EA5074) 84.1 parts, spiral linear WS 28 parts of nanomaterials, 7 parts of toughening agent (POE8200), 0.3 parts of heat stabilizer (Irganox1010), 0.3 parts of light stabilizer (V703), 0.3 parts of processing aid erucamide; put each component into a high-speed mixer After 3 minutes of dry mixing, it is added to a twin-screw extruder for melt extrusion and granulation to obtain a high-performance polypropylene composite material. The working temperature of each section of the twin-screw extruder is: the temperature of the feed section is 170°C, and the temperature of the compression section is 170°C. The temperature is 180°C, the temperature of the plasticizing section is 185°C, the temperature of the homogenization section is 180°C, and the temperature of the die mouth is 200°C.

[0040] Wherein, the helical linear WS 2 Nanomaterials are prepared by...

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Abstract

The invention discloses a high-performance polypropylene composite material and a preparation method thereof. The material is prepared from, by weight, 75.4 to 92.4 parts of polypropylene, 5 to 15 parts of a spiral linear WS2 nano material, 2 to 8 parts of a toughening agent, 0.2 to 0.6 part of a heat stabilizer, 0.2 to 0.6 part of a light stabilizer and 0.2 to 0.4 part of a processing aid. According to the invention, the spiral linear WS2 nano material prepared by a chemical vapor deposition method is used for replacing a traditional inorganic filler, and the orientation state of a traditional reinforcing material with an equal length-diameter ratio structure in the injection molding process can be avoided, so that the consistency and the stability of the transverse and longitudinal shrinkage rates of the material are kept. Besides, due to the fact that the spiral linear material has a longer effective actual length, the matrix stress transmission efficiency of the spiral linear material is higher and the effective contact area of the spiral linear material is larger in the stress state, the prepared polypropylene composite material has higher toughness and rigidity, and the application range of the spiral linear material is greatly expanded.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and in particular relates to a high-performance polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene is a thermoplastic synthetic resin with excellent performance. It has the advantages of light weight, safety, excellent processing performance, impact strength, flex resistance and good electrical insulation performance. It is currently widely used in automobiles, electronic appliances, and home appliances. , but polypropylene also has some disadvantages such as large molding shrinkage, poor low-temperature impact performance, low heat distortion temperature, and rigidity and toughness cannot be guaranteed at the same time. In actual production, inorganic fillers and tougheners are often used to modify polypropylene materials, but now The toughness and rigidity of some inorganic fillers and tougheners modified polypropylene mate...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L53/00C08L23/08C08K13/04C08K7/00C08K3/30C01G41/00
CPCC08L23/12C08L23/14C08L53/00C01G41/00C08K2201/011C08K2003/3009C08L23/0815C08K13/04C08K7/00C08K3/30
Inventor 杨桂生计娉婷姚晨光朱敏廖雄兵赵鑫
Owner HEFEI GENIUS NEW MATERIALS