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Polymer/foamed aluminium composite material and production method thereof

A technology of composite materials and production methods, applied in the direction of coating, etc., can solve problems such as limited scope of application, and achieve the effect of excellent mechanical properties

Active Publication Date: 2012-06-20
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scope of application of this method is relatively limited

Method used

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  • Polymer/foamed aluminium composite material and production method thereof
  • Polymer/foamed aluminium composite material and production method thereof
  • Polymer/foamed aluminium composite material and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Select the ellipsoidal open-cell connected aluminum foam with a porosity of 65% and a pore size of 4mm, treat it with 6.5wt% HCI solution for 5 minutes, then soak it in 6wt% NaOH solution for 6 minutes, and rinse it with water to make the rinse solution of the foamed aluminum After it becomes neutral, dry it at 90°C for 2.5 hours, then use foam aluminum 1.5wt% alcohol solution of KH550 silane coupling agent for surface treatment, and then dry it at 90°C for 2.4 hours. After pretreatment, aluminum foam with a porosity of 65% is embedded in the mold, and the injection molding process parameters are set as follows: mold temperature is 70°C, melt temperature is 230°C, sol pressure is 80MPa, and the melt index of polypropylene (PP) MI≥ 2g / 10min, injection pressure 115MPa, injection speed 60cm 3 / s, the holding pressure is 90 MPa, the holding time is 25S, and the cooling time is 13S. After taking it out, put it in an oven with a temperature of 70°C for 1.5h. Take it out and co...

Embodiment 2

[0031] Select a spherical open-cell connected aluminum foam with a porosity of 50% and a pore size of 3mm, treat it with 8wt% HCI solution for 2 minutes, then soak it in 5wt% NaOH solution for 10 minutes, and rinse it with water so that the rinse solution of the foamed aluminum is neutral. After drying, dry at 80°C for 3 hours, then use foam aluminum 0.5wt% alcohol solution of KH560 and KH550 mixed silane coupling agent for surface treatment, and then dry at 80°C for 3 hours. After the pretreatment, aluminum foam with a porosity of 50% is embedded in the mold, and the injection molding process parameters are set as follows: the mold temperature is 80°C, the melt temperature is 240°C, the sol pressure is 90MPa, and the melt index of polypropylene (PP) MI≥ 2g / 10min, injection pressure is 140MPa, injection speed is 52cm 3 / s, the holding pressure is 100 MPa, the holding time is 30S, and the cooling time is 12S. After taking it out, put it into an oven with a temperature of 50°C f...

Embodiment 3

[0033] Select a spherical open-cell connected aluminum foam with a porosity of 75% and a pore size of 4.8mm, treat it with 5wt% HCI solution for 10 minutes, then soak it in 8wt% NaOH solution for 2 minutes, and rinse it with water so that the rinse solution of the foamed aluminum is After neutralization, dry at 100°C for 2 hours, then use foam aluminum 2wt% alcohol solution of KH570 silane coupling agent for surface treatment, and dry at 100°C for 2 hours. After pretreatment, aluminum foam with a porosity of 80% is embedded in the mold, and the injection molding process parameters are set as follows: the mold temperature is 60°C, the melt temperature is 220°C, the sol pressure is 70MPa, and the melt index of polypropylene (PP) MI≥ 2g / 10min, injection pressure 90MPa, injection speed 68cm 3 / s, the holding pressure is 80 MPa, the holding time is 15S, the cooling time is 15S, take it out and put it in an oven at 80°C for 3h. Take it out and cool it to get the polymer / foam alumin...

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Abstract

A polymer / foamed aluminium composite material and a production method thereof; polymer melt is injected into voids of foamed aluminium to form a composite material composed of foamed aluminium and polymer; the polymer is a mixture of one or more than one of polypropylene, polyethylene, polystyrene, and polyoxymethylene. The production method of the polymer / foamed aluminium composite material comprises the following steps: embedding foamed aluminium in a mold; preparing the polymer / foamed aluminium composite material by a injection molding method of the polymer or the mixture; performing heat preservation of the obtained polymer / foamed aluminium composite material in a baking oven at a temperature of 50-80 DEG C for 1-3 hours.

Description

technical field [0001] The invention relates to a production method of a polymer / foam aluminum composite material, a polymer / foam aluminum composite material, and the use of the composite material. Background technique [0002] Alloys containing voids are called foamed metals or foamed metals, such as foamed aluminum, foamed nickel, foamed copper, etc. Foamed aluminum is made by adding additives to pure aluminum or aluminum alloy and undergoing a foaming process. Because of its special loose pore structure, low density, light weight, large specific surface area, and high specific mechanical properties, it has many unique properties. , Such as: good sound absorption, sound insulation, electromagnetic shielding, damping, shock absorption and other properties. At present, aluminum foam is widely used in machinery, energy, communication, medicine, construction, military industry, aerospace and other industries, and is used to manufacture various shock absorbers, filters, muffle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/76B29C45/17B29C45/14
Inventor 龙春光周扬粟洋龚建彬曹太山
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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