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Calcium sulfate crystal whisker glass fiber composite reinforcing nylon material and preparation method thereof

A calcium sulfate whisker and glass fiber composite technology is applied in the field of calcium sulfate whisker glass fiber composite reinforced nylon materials, which can solve the problems of low material strength and toughness, appearance of glass fiber lines and floating fibers, and large shrinkage rate. High strength, improved effect of glass fiber leakage

Inactive Publication Date: 2010-06-23
SHANGHAI SUNNY
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Although glass fiber-filled modified nylon has excellent mechanical properties and low shrinkage, the appearance of the product is rough, and even glass fiber lines and floating fibers may appear; although mineral-filled nylon is superior to the former in appearance, the strength of the material and low toughness, the shrinkage rate is relatively large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～2

[0025] Embodiment 1~2 proportioning (weight %) sees Table 1.

[0026] Table 1

[0027] raw material name

[0028] Put all the components into a high mixer in proportion and mix them for 3 minutes, then extrude and granulate with a screw extruder, the processing temperature is 220°C, 230°C, 235°C, 235°C, 235°C, 235°C, 235°C , 230°C, and the screw revolutions are at 300 rpm.

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PUM

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Abstract

The invention relates to a calcium sulfate crystal whisker glass fiber composite reinforcing nylon material and a preparation method thereof. The material is prepared by the following raw materials in weight percent: 50-70% of nylon 6, 5-20% of calcium sulfate crystal whisker, 5-30% of alkali-free glass fiber, 0.2-5% of silane coupling agent, 0.1-0.5% of antioxidant, and 0.1-0.5% of lubricant. The preparation method comprises the following steps: weighing raw materials according to the above weight percent; placing the calcium sulfate crystal whisker and the silane coupling agent into a high mixing machine to process for 2-5min; discharging; and placing the evenly-mixed raw materials into a screw machine for extrusion and pelletizing. The invention is characterized in that the prepared nylon material has higher mobility and higher strength, can improve surface floating fiber and can be used for manufacturing surface materials with higher surface requirements such as cars, electronics and the like.

Description

technical field [0001] The invention relates to a calcium sulfate whisker glass fiber composite reinforced nylon material. The material has higher strength, and the fluidity and glass fiber leakage are obviously improved. It can produce production equipment, tools, instruments, instrument shells, etc. with high strength requirements. Background technique [0002] Nylon is widely used in various industries due to its excellent comprehensive properties. Glass fiber and mineral-filled modified nylon has good properties such as high strength, high heat resistance, high fatigue resistance, and low forming shrinkage. Therefore, it is widely used in automobiles, machinery, Household appliances, aviation and military components and other fields. [0003] Nylon modified materials currently on the market are mainly glass fiber and mineral-filled modified composite materials. Although glass fiber-filled modified nylon has excellent mechanical properties and low shrinkage, the appeara...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K13/04C08K7/08B29B9/00B29C47/92C08K7/14B29C48/92
CPCB29C48/04B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 陈晓东孟成铭项军郭建鹏杨涛
Owner SHANGHAI SUNNY
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