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Method for preparing resin-base composite material containing metal particle

A technology of metal particles and composite materials, which is applied in the field of preparation of resin-based composite materials. It can solve the problems of affecting the connection mechanism between particles and the matrix, re-agglomeration of powder particles, and inconspicuous dispersion effects, etc., to achieve high particle filling content and firm bonding. , the effect of low cost

Inactive Publication Date: 2008-06-04
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common problem in physical dispersion is that once they leave the turbulent flow field generated by the physical method, the powder particles may re-agglomerate, and the dispersion effect is not obvious
Although chemical dispersion can effectively disperse particles, it affects the connection mechanism between particles and the matrix by changing the properties of the particle surface, thereby affecting the performance of the obtained product

Method used

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  • Method for preparing resin-base composite material containing metal particle
  • Method for preparing resin-base composite material containing metal particle
  • Method for preparing resin-base composite material containing metal particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] As shown in Figure 1, a kind of preparation method of the resin-based composite material containing metal particle, it comprises the steps:

[0033] 1) W particle surface modification treatment: W powder (average particle size 0.95μm, Chaozhou Xianglu Tungsten Industry Co., Ltd.), silane coupling agent (KH550, molecular formula N 2 N(CH 2 ) 3 Si(OC 2 h 5 ) 3 , Hubei Wuhan University Organosilicon New Materials Co., Ltd.) and ethanol (Shanghai Sinopharm Chemical Reagent Company) are mixed, wherein KH550 silane coupling agent is 2wt% of W powder, and the weight ratio of ethanol and W powder is 1: 1; Stir with a stirrer and a sonicator for 10 min, and heat to reflux at 100°C (N 2 protection), forming a suspension (metal particle suspension of grafted surface modifier).

[0034] 2) Classification: classify the suspension to obtain a suspension containing particles of a single particle size, the classification time is 2min, suction filter the suspoemulsion containing p...

Embodiment 2

[0038] A method for preparing a resin-based composite material containing metal particles, comprising the steps of:

[0039] 1) Surface modification of Mo particles: Mix Mo powder (average particle size 1.50 μm, Beijing General Research Institute for Nonferrous Metals), KH550 silane coupling agent and ethanol, wherein KH560 silane coupling agent is 2wt% of Mo powder, ethanol The weight ratio with Mo powder is 1: 1; at the same time, use a stirrer and a sonicator to vibrate and stir for 10min, and heat to reflux at 100°C (N 2 protection), forming a suspension.

[0040] 2) Classify the suspension to obtain a suspension containing particles of a single particle size, the classification time is 1 min, and filter the suspoemulsion to obtain a modified Mo powder (metal powder grafted with a surface modifier) ​​with a single particle size.

[0041] 3) Add the modified Mo powder in step 2) into the epoxy resin, mix the modified Mo powder and the epoxy resin according to the weight rati...

Embodiment 3

[0044] A method for preparing a resin-based composite material containing metal particles, comprising the steps of:

[0045] 1) Surface modification of Ni particles: Mix Ni powder (average particle size 2.0 μm, Beijing General Research Institute for Nonferrous Metals), titanate coupling agent (NDZ-401, Nanjing Shuguang Chemical Group Co., Ltd.) and ethanol, wherein The coupling agent is 2wt% of Ni powder, and the weight ratio of ethanol to Ni powder is 1: 1; meanwhile, a stirrer and a sonicator are used to vibrate and stir for 10min, and heated to reflux at 100°C (N 2 protection), forming a suspension.

[0046] 2) Classification: Classify the suspension to obtain a suspension containing particles of a single particle size, the classification time is 1min, and filter the suspoemulsion to obtain a modified Ni powder with a single particle size (metal powder grafted with a surface modifier) .

[0047] 3) Add the modified Ni powder in step 2) into the epoxy resin, mix the modifi...

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Abstract

The invention relates to a preparation method of a resin matrix composite material filled with metal particles, in particular to a preparation method of a resin matrix composite material containing metal particles. The invention is characterized in that: the invention comprises the steps: 1) dried metal powder and surface modifier are mixed with solvent, and then the mixture obtained is heated and refluxed with the protection of inert gas under 80-150 DEG C, thus forming suspension; 2) the suspension is classified to obtain suspension with single particle-sized particles, which is then extracted and filtered, thus obtaining single particle-sized modified metal powder; 3) the modified metal powder obtained in the step 2) is added into the resin matrix, in which thixotropic agent and curing agent are added, and then a vacuum stirrer and a ultrasonic vibrating device are used together to stir and vibrate the mixture obtained; 4) the mixture obtained in the step 3) after mixed is poured into a die for casting moulding, thus obtaining the resin matrix composite material containing metal particles through curing technique. The method is characterized by good dispersion effective of the metal particles and preventing the metal particles from a secondary aggregation.

Description

technical field [0001] The invention relates to a method for preparing a resin composite material filled with rigid particles, in particular to a method for preparing a resin-based composite material filled with metal particles. Background technique [0002] In the traditional sense, the toughening of polymers is mainly to add rubber elastomers as toughening agents to achieve the purpose of toughening, but the strength, modulus and heat resistance of resin materials are greatly reduced. In order to overcome the shortcomings that the strength, modulus and heat resistance of the material are greatly reduced while improving the toughness of the polymer matrix, since 1984, a new idea of ​​replacing rubber toughened polymers with non-elastomers has appeared abroad, which solves the problem of However, there are some problems in the preparation process of polymer non-elastomer toughening, that is, with the decrease of the size of the filled particles, due to the van der Waals forc...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L67/06C08K9/06B29C39/42
Inventor 张联盟罗国强高明沈强王传彬黄志雄
Owner WUHAN UNIV OF TECH
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