Thermoplastic aluminum alloy used for plastics and preparation method

An aluminum alloy and thermoplastic technology, which is applied in the field of thermoplastic aluminum alloy and its preparation, can solve the problems of incompatibility between aluminum alloy powder and plastic, and achieve the effect of solving the incompatibility problem and increasing the filling amount

Inactive Publication Date: 2018-06-01
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide a thermoplastic aluminum alloy for plastics and its preparation method, which solves the problem of incompatibility between aluminum alloy powder and plastics, and improves the filling amount of aluminum alloys in plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]The preparation method of thermoplastic aluminum alloy used in plastics is to melt and blend polyimide and aluminum alloy through laser action, so that polyimide can be firmly embedded in aluminum alloy. Firstly, aluminum alloy powder with a particle size of 50nm Heat the silicon reactor to 500°C; then prepare a soluble polyimide solution with a concentration of 85%, and keep the temperature at 5°C; then add high-temperature aluminum alloy powder to the low-temperature polyimide solution to form a mixed solution, and mix the solution The mass fraction of the aluminum alloy powder in the medium is 30%, and it is reacted for 5 minutes; then the reacted product is filtered and dried and spread on a quartz silicon substrate with a thickness of 1 mm, and treated with infrared laser or ultraviolet laser irradiation, and then mixed with A 5-fold ratio of thermoplastic resin polyamide at a temperature of 75° C. is added to a twin-screw for blending to prepare a thermoplastic alum...

Embodiment 2

[0037] The preparation method of thermoplastic aluminum alloy used in plastics is to melt and blend polyimide and aluminum alloy through laser action, so that polyimide can be firmly embedded in aluminum alloy. Firstly, aluminum alloy powder with a particle size of 60nm Heat the silicon reactor to 550°C; then prepare a soluble polyimide solution with a concentration of 87%, and keep the temperature at 10°C; then add high-temperature aluminum alloy powder to the low-temperature polyimide solution to form a mixed solution, and mix the solution The mass fraction of the aluminum alloy powder in the medium is 31%, and it is reacted for 6 minutes; then the product after the reaction is filtered and dried and spread on the quartz silicon substrate with a thickness of 2 mm, and treated with infrared laser or ultraviolet laser irradiation, and then mixed with 6 times the ratio of thermoplastic resin polyamide at a temperature of 80°C is added to the twin-screw for blending to prepare a ...

Embodiment 3

[0040] The preparation method of thermoplastic aluminum alloy used in plastics is to melt and blend polyimide and aluminum alloy through laser action, so that polyimide can be firmly embedded in aluminum alloy. Firstly, aluminum alloy powder with a particle size of 70nm Heat the silicon reactor to 575°C; then prepare a soluble polyimide solution with a concentration of 90%, and keep the temperature at 25°C; then add high-temperature aluminum alloy powder to the low-temperature polyimide solution to form a mixed solution, and mix the solution The mass fraction of the aluminum alloy powder in the medium is 33%, and it is reacted for 8 minutes; then the product after the reaction is filtered and dried and spread on the quartz silicon substrate with a thickness of 1.5mm, and treated by infrared laser or ultraviolet laser irradiation, and then The thermoplastic resin polyamide with a temperature of 85° C. is added into twin-screws for blending with 8 times the ratio to prepare a the...

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Abstract

The invention belongs to the field of plastic preparation, and provides a thermoplastic aluminum alloy used for plastics and a preparation method. The preparation method comprises the following steps:adding aluminum alloy powder into a soluble polyimide solution, carrying out filtration drying and laser radiation treatment, and then adding thermoplastic resin polyamide into a double screw for blending so as to prepare thermoplastic aluminum alloy; and through laser treatment of the polyimide coated aluminum alloy powder, aluminum alloy powder and polyimide are fused and mixed together, the polyimide can be embedded into the aluminum alloy after cooling, and the polyimide is self-crosslinked through a laser action. A firm polymer coating layer is formed on the surface of the aluminum alloy, and through hydrogen-bond interaction of the polyimide and polyurethane resin, the polyurethane resin firmly coats the surface of the aluminum alloy powder, so that the problem that the aluminum alloy powder is incompatible with plastics is solved, and the filling amount of the aluminum alloy inside the plastics is improved.

Description

technical field [0001] The invention belongs to the field of plastic preparation, and in particular relates to a thermoplastic aluminum alloy used for plastics and a preparation method. Background technique [0002] Thermoplastics refer to plastics that soften when heated and harden when cooled. Most of the plastics we use in our daily lives fall into this category. It becomes soft and fluid when heated, and hardens when cooled. This process is reversible and can be repeated. Polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyoxymethylene, polycarbonate, polyamide, acrylic plastic, other polyolefins and their copolymers, polysulfide, polyphenylene ether, chlorinated polyether, etc. It is a thermoplastic. The resin molecular chains in thermoplastics are all linear or branched. There is no chemical bond between the molecular chains, and it softens and flows when heated. The process of cooling and hardening is a physical change. [0003] The molecular weight ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/08C08K3/08C08J3/28
CPCC08K3/08C08J3/28C08J2379/08C08K2003/0812C08K2201/003C08K2201/011C08L79/08
Inventor 陈庆司文彬
Owner CHENDU NEW KELI CHEM SCI CO LTD
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