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A low-voltage x-ray protective material

A light protection, low voltage technology, applied in the field of X-ray protection, can solve the problems of high chemical toxicity, high price, reduced use value, etc., and achieve the effects of rich rare earth resources, good application prospects and diverse varieties

Active Publication Date: 2017-12-12
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the compounds of Ba, BaO has the highest percentage by weight of Ba element, but BaO is very alkaline, chemically toxic, and expensive, which reduces its use value
If BaSO is selected 4 , although it can overcome the chemical toxicity of Ba and enhance its chemical stability, the shielding effect is deteriorated due to the low percentage by weight (59%) of element Ba in the compound

Method used

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  • A low-voltage x-ray protective material
  • A low-voltage x-ray protective material
  • A low-voltage x-ray protective material

Examples

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Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the examples, but the present invention is not limited to the following examples.

[0017]

[0018]

[0019] Carry out mixing and processing according to the raw materials and dosage in the listed formula: add rubber raw rubber to the open mill, masticate for 1-2 minutes, add zinc oxide, stearic acid, anti-aging agent in turn, and mix for 1-2 minutes; then add Accelerator, mix for 1-2 minutes; then add lanthanum oxide, iron oxide and tin oxide in sequence, mix for 10-15 minutes; finally, add cross-linking agent, mix for 1-2 minutes, and make composite material.

[0020] Below is the performance of the low-voltage X-ray protective material of embodiment:

[0021]

[0022] *The specific lead equivalent value in the table represents the thickness value of the composite material per unit thickness (mm) equivalent to the pure lead plate, and the higher the value, the better the shielding perfo...

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Abstract

The invention discloses a low-voltage X-ray protection material and belongs to the field of X-ray protection. The low-voltage X-ray protection material is mainly prepared from, by weight, 2-5 parts of rubber, 2-5 parts of zinc oxide, 1-2 parts of stearic acid, 1-2 parts of antiager 4010NA, 2-3 parts of promoter CZ, 0.5-1 part of promoter TT, 80-300 parts of lanthanum oxide, 20-200 parts of iron oxide, 40-100 parts of tin oxide and 2-3 parts of sulfur. According to the lead-free X-ray shielding rubber, the content of added mixed filler is large, high dispersity is achieved, and the X-ray shielding and mechanical properties of the material are ideal.

Description

technical field [0001] The invention relates to a low-voltage X-ray protective material, which is suitable for X-ray protection under a tube voltage of 40-60KV, and belongs to the field of X-ray protection. Background technique [0002] The development, production and popularization of radiation protection materials is one of the key points of civil health protection work, and it is also an important part of radiation protection in the field of nuclear energy development and military use. Domestic polymer radiation protection materials are currently mainly lead rubber products. Europe, America, Japan and other countries have successfully developed a new type of thermoplastic elastomer composite material. This composite material has high physical and mechanical properties, good surface properties, aging resistance, and dimensional stability under the same specific lead equivalent conditions. Clothes can also be thermally synthesized. Under the condition of the same weight, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/02C08L23/16C08L9/06C08L23/28C08K13/02C08K3/22C08K5/09C08K5/18C08K5/47C08K5/40C08K3/06
CPCC08K3/06C08K3/22C08K5/09C08K5/18C08K5/40C08K5/47C08K13/02C08K2003/221C08K2003/2231C08K2003/2272C08K2003/2296C08L2201/08C08L23/283C08L9/06C08L23/16C08L9/02C08L7/00
Inventor 刘力许克权温世鹏胡水
Owner BEIJING UNIV OF CHEM TECH
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