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Mobility-adjustable shielding putty and preparation method and application thereof

A fluidity and putty technology, applied in the field of nuclear radiation protection, can solve the problems of inability to fill the gap, the fluidity of the shielding putty cannot be adjusted, etc., and achieve the effect of short dry time, good shielding performance and bonding strength, and excellent shielding performance.

Pending Publication Date: 2021-09-21
NUCLEAR POWER INSTITUTE OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a shielding putty with adjustable fluidity to solve the problem that the fluidity of the existing shielding putty cannot be adjusted, resulting in the problem that the gap cannot be filled. The adjustable fluidity shielding putty has both good shielding performance and stickiness. Contact strength

Method used

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  • Mobility-adjustable shielding putty and preparation method and application thereof
  • Mobility-adjustable shielding putty and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] One kind of mobility adjustable shielding putty, in weight percent, consists of the following components:

[0040] Epoxy 14.60wt%, aluminum hydroxide 14 wt% boron carbide 5.11wt%, lead powder 60 wt% reactive diluent having an epoxy group is 1.75%, cycloaliphatic amine curing agent 4.54wt%.

[0041] Preparation of the present embodiment is as follows:

[0042] A weight proportion of the epoxy resin and shown in the reactive diluent is added at the rate of the mixer 30r / min stirring 10min, A is the mixed component; will lead powder, aluminum hydroxide, boron carbide is added to the mixer 30r rate / min was stirred 15min B is the mixed components. The A, B two parts are mixed at a rate 30r / min of stirring 20min, component C was added (cycloaliphatic amine curing agent) uniformly mixed, and stirring was continued at a rate 70r / min to 60min.

Embodiment 2

[0050] One kind of mobility adjustable shielding putty, in weight percent, consists of the following components:

[0051] Epoxy resin 14.6 wt% of aluminum hydroxide 10 wt% boron carbide 9.11wt%, lead powder 60 wt% reactive diluent having an epoxy group is 1.75%, cycloaliphatic amine curing agent 4.54wt%.

Embodiment 3

[0053] One kind of mobility adjustable shielding putty, in weight percent, consists of the following components:

[0054] Epoxy resin 14.6 wt% boron carbide 19.11wt%, lead powder 60 wt% reactive diluent having an epoxy group is 1.75%, cycloaliphatic amine curing agent 4.54wt%.

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Abstract

The invention discloses a mobility-adjustable shielding putty and a preparation method and application thereof, and the mobility-adjustable shielding putty comprises a matrix, a neutron ray shielding filler, a gamma ray shielding filler and a curing agent, and also comprises a reactive diluent with an epoxy group. According to the invention, a certain amount of the reactive diluent with the epoxy group is added into the shielding putty, the mobility of the shielding putty is adjusted through the reactive diluent with the epoxy group, and pouring of different joint filling structures is carried out; when the shielding putty is used, the use amount of the reactive diluent is reasonably adjusted according to the specific depths and widths of different joint filling structures so that the viscosity of the shielding putty is controlled within a reasonable range, and the shielding putty has good shielding performance and bonding strength on the premise of ensuring that the joint filling structures are filled.

Description

Technical field [0001] The present invention relates to the technical field of nuclear radiation protection, particularly to an adjustable shielding putty flowability and preparation method, application. Background technique [0002] Common shielding materials are polyethylene, polyvinyl boron, boron steel, lead, lead, boron and polyethylene, is typically mounted on the support structure around the radiation source by way of stitching, the sheet occurred during the installation to solve the shield problems gap barrier penetrating radiation shielding putty usually fill the gap. [0003] In the prior art, widely used as a shielding putty epoxy matrix ordinary casting process, the viscosity is not adjustable is fixed, it is difficult to meet the construction requirements without affecting the structure under different conditions slot based on shielding properties of putty. For example, for a narrow and deep slot, the flowability since the shield can not be adjusted putty, putty not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 魏梦玲杨静邱绍宇沈震宇孙涛军高心蕊罗绪珍
Owner NUCLEAR POWER INSTITUTE OF CHINA
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