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Hollow glass micro-bead reinforced polypropylene material

A technology of hollow glass microspheres and polypropylene materials, applied in the field of polypropylene material production, can solve problems such as poor creep resistance, variability, and large shrinkage

Inactive Publication Date: 2016-03-09
QINGDAO YISHIBAO PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage is poor cold resistance
Low temperature is easy to break, and the shrinkage rate is large, the creep resistance is poor, the dimensional stability of the product is poor, and the variability

Method used

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  • Hollow glass micro-bead reinforced polypropylene material
  • Hollow glass micro-bead reinforced polypropylene material
  • Hollow glass micro-bead reinforced polypropylene material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Take each raw material respectively by weight ratio as follows:

[0015] Polypropylene: 70;

[0016] Silane coupling agent: 1.0;

[0017] Antioxidant: 1.0;

[0018] Hollow glass microspheres: 10;

[0019] Dispersed lubricant: 0.5;

[0020] Dispersant: 0.5.

[0021] (2) First surface activate the hollow glass microspheres and silane coupling agent, then dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder for melt extrusion , cooling, pelletizing, and packaging the finished product; among them, the temperature of the first zone of the twin-screw extruder is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, and the fourth zone is 200-205°C ; The fifth zone is 190-200°C, the residence time is 1-2 minutes, and the pressure is 10-15Mpa.

[0022] Experimental results

[0023]

Embodiment 2

[0025] (1) Take each raw material respectively by weight ratio as follows:

[0026] Polypropylene: 75;

[0027] Silane coupling agent: 2.0;

[0028] Antioxidant: 2.0;

[0029] Hollow glass microspheres: 20;

[0030] Dispersed Lubricant: 1.0;

[0031] White oil: 1.0.

[0032] (2) First surface activate the hollow glass microspheres and silane coupling agent, then dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder for melt extrusion , cooling, pelletizing, and packaging the finished product; among them, the temperature of the first zone of the twin-screw extruder is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, and the fourth zone is 200-205°C ; The fifth zone is 190-200°C, the residence time is 1-2 minutes, and the pressure is 10-15Mpa.

[0033] Experimental results

[0034]

Embodiment 3

[0036] (1) Take each raw material respectively by weight ratio as follows:

[0037] Polypropylene: 80;

[0038] Silane coupling agent: 3.0;

[0039] Antioxidant: 3.0;

[0040] Hollow glass microspheres: 30;

[0041] Dispersed lubricant: 1.5;

[0042] Dispersant: 1.5.

[0043] (2) First surface activate the hollow glass microspheres and silane coupling agent, then dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder for melt extrusion , cooling, pelletizing, and packaging the finished product; among them, the temperature of the first zone of the twin-screw extruder is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, and the fourth zone is 200-205°C ; The fifth zone is 190-200°C, the residence time is 1-2 minutes, and the pressure is 10-15Mpa.

[0044] Experimental results

[0045]

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Abstract

Polypropylene (PP) is a non-polar crystalline plastic, is one of five classes of general plastics, has characteristics of rich raw material source, cheap price, easy processing molding and the like so as to provide wide uses, and further has disadvantages of poor cold resistance, easy breaking at a lower temperature, high shrinkage rate, poor creep resistance, poor product size stability, and easy denaturation. The hollow glass micro-beads contain air, and have characteristics of low thermal conductivity, light weight, smooth surface and the like. According to the present invention, the good thermal insulation performance polymer can be prepared; a purpose of the present invention is to provide a special polypropylene modified material with characteristics of no influence on mechanical property and environmental protection; and the raw materials of the hollow glass micro-bead reinforced polypropylene material comprise, by weight, 70-80 parts of polypropylene, 1.0-3.0 parts of a silane coupling agent, 1.0-3.0 parts of an antioxidant, 10-30 parts of hollow glass micro-beads, 0.5-1.5 parts of a dispersion lubricant, and 0.5-1.5 parts of a dispersant.

Description

technical field [0001] The invention belongs to the technical field of polypropylene material production and aims to improve the original defects of polypropylene. Produce products that meet social needs. Background technique [0002] Polypropylene (PP) is a non-polar crystalline plastic. It is one of the five general-purpose plastics. It has abundant raw materials, cheap prices, and easy processing and molding, so it has a wide range of uses. Although polypropylene has many advantages, there are also some disadvantages. The biggest disadvantage is poor cold resistance. Low temperature is easy to break, and the shrinkage rate is large, the creep resistance is poor, the dimensional stability of the product is poor, and the variability is high. Hollow glass microspheres contain gas, low thermal conductivity, light weight and smooth surface. Polymers with good thermal insulation properties can be prepared. Contents of the invention [0003] The purpose of the present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/06C08K9/06C08K7/28C08K5/20C08K5/01B29B9/06B29C47/92B29C48/92
Inventor 栾蓉王世字
Owner QINGDAO YISHIBAO PLASTIC
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