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High-performance chopped glass-fiber-reinforced thermoplastic material and preparation method thereof

A technology of chopped glass fiber and reinforced thermoplastic, applied in the field of engineering plastics, can solve the problem of increasing the cost of raw materials, and achieve the effect of improving mechanical properties

Inactive Publication Date: 2016-03-23
JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, although there is a lot of room for the selection of raw materials, the substantial increase in raw material costs is difficult to meet the requirements of downstream injection molding manufacturers for raw material costs

Method used

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  • High-performance chopped glass-fiber-reinforced thermoplastic material and preparation method thereof
  • High-performance chopped glass-fiber-reinforced thermoplastic material and preparation method thereof
  • High-performance chopped glass-fiber-reinforced thermoplastic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Raise the temperature of the twin-screw extruder to a constant temperature of 180°C to 230°C, mix 68kg of polypropylene resin, 0.6kg of silane coupling agent and 1.4kg of selective additive in a high-speed mixer, and pass the uniformly mixed material through The conveying pipeline is sent into the material station A;

[0030] Send 30kg of chopped glass fiber for PP into material station B;

[0031] In the continuous metering system, enter the proportion of materials used in the corresponding feeding station A: 70wt%; B: 30wt%;

[0032] Start the chopped fiberglass heating system. The chopped glass fiber heating system is infrared heating such as heating tubes and heating rods, and the heating temperature is set and controlled at 140°C.

[0033] Start the twin-screw extruder and continuous metering system. The material in material station A passes through the continuous metering system and is added to the main feeding port of the twin-screw extruder; the material in ma...

Embodiment 2

[0042] Raise the temperature of the twin-screw extruder to a constant temperature of 180°C to 230°C, mix 68kg of ABS resin, 0.6kg of silane coupling agent and 1.4kg of selective additive in a high-speed mixer, and convey the uniformly mixed material through The pipeline is sent into the material station A;

[0043] Send 30kg of chopped glass fiber for ABS to material station B;

[0044] In the continuous metering system, enter the proportion of materials used in the corresponding feeding station A: 70wt%; B: 30wt%;

[0045] Start the chopped fiberglass heating system. The chopped glass fiber heating system is infrared heating such as heating tubes and heating rods, and the heating temperature is set and controlled at 140°C.

[0046] Start the twin-screw extruder and continuous metering system. The material in material station A passes through the continuous metering system and is added to the main feeding port of the twin-screw extruder; the material in material station B pa...

Embodiment 3

[0055] Raise the temperature of the twin-screw extruder to a constant temperature of 210°C to 250°C, mix 68kg of PA6 resin, 0.6kg of silane coupling agent and 1.4kg of selective additive in a high-speed mixer, and convey the uniformly mixed material through The pipeline is sent into the material station A;

[0056] Send 30kg of chopped glass fiber for PA6 into material station B;

[0057] In the continuous metering system, enter the proportion of materials used in the corresponding feeding station A: 70wt%; B: 30wt%;

[0058] Start the chopped fiberglass heating system. The chopped glass fiber heating system is infrared heating such as heating tubes and heating rods, and the heating temperature is set and controlled at 180°C.

[0059] Start the twin-screw extruder and continuous metering system. The material in material station A passes through the continuous metering system and is added to the main feeding port of the twin-screw extruder; the material in material station B ...

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Abstract

The invention discloses a high-performance chopped glass-fiber-reinforced thermoplastic material and a preparation method thereof. The preparation method includes the steps of heating chopped glass fibers, adding the chopped glass fibers to a plastified thermoplastic material melt through a feeding device, and performing mixing through a double-screw extruder and cutting the material into granules. The length of glass fibers is excellent in the material, so that the material is significantly improved in mechanical performance.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics, and in particular relates to a high-performance chopped glass fiber reinforced thermoplastic material and a preparation method thereof. Background technique [0002] In the modified plastics industry, there is limited room for improvement in mechanical properties after mixing with twin-screw extruders on the basis of existing general-purpose raw materials. When downstream customers use plastic to replace steel when injecting parts, the thinner wall and lighter weight of the parts have put forward higher requirements on the mechanical properties of modified plastics. In order to meet the needs of customers, it is a difficult problem in the industry to produce high-performance chopped glass fiber reinforced thermoplastic materials that can meet customer requirements without changing or slightly changing the existing raw materials and processing costs. At this stage, although there is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L55/02C08L77/02B29B9/06
CPCC08K13/04B29B9/06C08K7/14C08L23/12C08L55/02C08L77/02
Inventor 王培武
Owner JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD