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Fiber glass reinforced polyamide composite material and preparation method thereof

A composite material and polyamide technology, which is applied in the field of glass fiber reinforced polyamide composite materials and its preparation, can solve the problems of reducing the welding strength of materials and reducing the welding area of ​​polymers at the welding interface, and achieve low cost, excellent welding strength, and wide The effect of applying the foreground

Inactive Publication Date: 2010-11-10
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, glass fiber reinforced or containing other inorganic filled polymers, the fillers are easy to float on the surface of the material, which reduces the welding area of ​​the polymer at the welding interface and greatly reduces the welding strength of the material

Method used

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  • Fiber glass reinforced polyamide composite material and preparation method thereof
  • Fiber glass reinforced polyamide composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Put 66% by weight of PA6, 2% of N-ethyl-p-toluenesulfonamide, 0.5% of KO-311, 0.5% of TAF, and 1% of other additives into a mixing tank After fully mixing for 15 minutes, put the mixed material into a twin-screw extruder for melting and kneading, extrude, and granulate. 30% of the glass fiber is fed from the side and the screw diameter of the twin-screw extruder is 35mm, the ratio of screw length to diameter is set to 32, the extrusion temperature is 230°C for the first zone, 240°C for the second zone, 220°C for the third zone, 230°C for the fourth zone, 245°C for the head, and the residence time 1-2min, the pressure is 15MPa.

Embodiment 2

[0035] Example 2 Put 66% by weight of PA66, 2% of N-ethyl-p-toluenesulfonamide, 0.5% of KO-311, 0.5% of TAF, and 1% of other additives into a mixing tank After fully mixing for 20 minutes, put the mixed material into a twin-screw extruder for melting and kneading, extrude, and granulate. 30% of glass fibers are fed from the side. The screw diameter of the twin-screw extruder is 35mm, the ratio of screw length to diameter is set to 40, the extrusion temperature is 250°C for the first zone, 270°C for the second zone, 260°C for the third zone, 270°C for the fourth zone, 275°C for the head, and the residence time 1-2min, the pressure is 13MPa.

Embodiment 3

[0036] Embodiment 3 The PA6 of 33% by weight, the PA66 of 33%, the N-ethyl-p-toluenesulfonamide of 2%, the KO-311 of 0.5%, the TAF of 0.5%, other additives of 1%, Put it into the mixing tank for 20 minutes of thorough mixing, put the mixed material into the twin-screw extruder to melt and knead, extrude, granulate, add 30% glass fiber from the side feed, and twin-screw extrude The screw diameter of the machine is 35mm, the ratio of screw length to diameter is set to 36, and the extrusion temperature is 240°C for the first zone, 260°C for the second zone, 250°C for the third zone, 260°C for the fourth zone, and 260°C for the die head. 265°C, residence time 1-2min, pressure 16MPa.

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Abstract

The invention discloses a fiber glass reinforced polyamide composite material and preparation method thereof. The fiber glass reinforced polyamide composite material comprises the following compositions in percentage by weight: 0.5 to 3 percent of polyamide, 0.3 to 1 percent of compatilizer, 0.2 to 2 percent of anti-floating agent and 0.5 to 2 percent of other assistants. Compared with the prior art, the prepared fiber glass reinforced polyamide composite material has excellent welding strength, can satisfy the application requirement of the industries such as electronics, electric appliances, automotive industry, traffic transportation, building industry, daily commodities and the like on the high-welding-strength polyamide material, and has low cost, convenient and simple processing technology and promising application prospect.

Description

[technical field] [0001] The invention relates to polymer materials, in particular to a glass fiber reinforced polyamide composite material and a preparation method thereof. [Background technique] [0002] Plastic welding technology has comprehensive advantages such as low cost, high speed, convenient processing, easy realization of precision numerical control, wide application range of raw materials, good jointability and manufacturability, etc. With the research of plastic welding technology and the gradual commercialization of plastic welding equipment, plastic welding The application is more and more extensive, and the technology is more and more mature. Its welding products will soon enter every aspect of our daily life. [0003] Ultrasonic welding and high-frequency welding are more common in the market at present. Their basic principle is that the energy of ultrasonic kinetic energy or high-frequency electric field is converted into heat energy that can melt the pla...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L77/02C08L77/06C08K13/04C08K7/14B29B9/06B29C47/92B29C48/92
CPCB29B9/14B29B7/90B29B9/06B29C48/04B29C48/92B29C2948/92514B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 徐东徐永杨海灵
Owner SHENZHEN KEJU NEW MATERIAL
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