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X-ray prevention shielding film and preparation method thereof

An X-ray and film technology, applied in the field of anti-X-ray shielding film and its preparation, can solve the problems of insufficient softness, poor conformability, radiation leakage, etc., achieve strong durability, increase service life, and improve wear resistance Effect

Inactive Publication Date: 2015-04-22
NANTONG ZHONGHAI PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shielding film used to be a lead plastic shielding film mainly made of polyvinyl chloride resin. However, when the items to be inspected on the conveyor belt pass through the lead curtain, the lead curtain that is in contact with the item to be inspected will be lifted under the drive of the moving item. The traditional Since the lead curtain is made of a mixture of plastic and lead, it is not flexible enough at low temperatures, and has poor conformability during use, which may easily lead to radiation leakage and radiation risks.

Method used

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  • X-ray prevention shielding film and preparation method thereof
  • X-ray prevention shielding film and preparation method thereof

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preparation example Construction

[0031] A method for preparing an X-ray shielding film, comprising the following steps:

[0032] Step 1) mixing natural rubber layer, styrene-butadiene synthetic rubber, anti-aging agent, accelerator, sulfur, release agent and lead powder into lead rubber layer by two-roll rubber mixing machine;

[0033] Step 2) mixing the natural rubber layer, styrene-butadiene synthetic rubber, anti-aging agent, accelerator, sulfur, release agent and carbon black into a wear-resistant rubber layer by a two-roller rubber mixer;

[0034] Step 3) stretching the product obtained in step 1 and step 2 through the pressure of a three-roll calender to form a sheet;

[0035] Step 4) Heat the lead rubber layer, reinforcing fabric layer, and protective layer through a flat carding machine, pressurize the carding machine, set the heating temperature to 140-145 ° C, and the heating time is 20 minutes;

[0036] Step 5) Punching the pieces;

[0037] Step 6) Verify the installation.

[0038] Accelerator N...

Embodiment 1

[0042] Select 2 parts of natural rubber, 7.5 parts of styrene-butadiene synthetic rubber, 0.25 parts of N-cyclohexyl-N'-phenyl-p-phenylenediamine, N-(diethylene oxide)-2-benzothiazole sulfenamide or 2 -0.25 part of (4-morpholinethio) benzothiazole, 0.25 part of 2-mercaptobenzothiazole, 0.35 part of sulfur, 0.2 part of release agent, 82 parts of lead powder to prepare lead rubber layer

[0043] Select 2-3 parts of natural rubber, 6-8 parts of styrene-butadiene synthetic rubber, 0.2-0.3 parts of N-cyclohexyl-N'-phenyl-p-phenylenediamine, N-(diethylene oxide)-2-benzo Thiazole sulfenamide or 2-(4-morpholinethio)benzothiazole 0.2-0.3 parts, 2-mercaptobenzothiazole 0.2-0.3 parts, sulfur 0.3-0.4 parts, mold release agent 0.2 parts, carbon black 5 parts to prepare a wear-resistant rubber layer.

[0044] The natural rubber layer, styrene-butadiene synthetic rubber, anti-aging agent, accelerator, sulfur, release agent and lead powder are mixed into a lead rubber layer through a two-rol...

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Abstract

The invention discloses an X-ray prevention shielding film and a preparation method thereof. The X-ray prevention shielding film comprises five layers of structures. The middle layer is a reinforced fabric layer, the outermost layer is a protective layer, a lead rubber layer is arranged between the reinforced fabric layer and the protective layer, and the reinforced fabric layer is made of chemical fiber cloth. The X-ray prevention shielding film is used for safety inspection, reinforced fabric can improve the mechanical strength, lead rubber can achieve the effect of shielding X-rays, abrasion resistance rubber prevents lead powder from being precipitated, the abrasion resistance degree is improved, and the service life is prolonged. According to the X-ray prevention shielding film and the preparation method thereof, traditional lead plastics are changed through lead rubber fusion, the shielding film is made softer, the durability is higher, and the phenomenon that the X rays are leaked and human bodies are injured because of low-temperature hardening of the shielding film due to temperatures is avoided.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to an X-ray shielding film and a preparation method thereof. Background technique [0002] The security inspection machine is an electronic device that sends the inspected baggage into the X-ray inspection channel by means of a conveyor belt to complete the inspection. It is widely used in airports, customs, land / sea transport departments, high-security events and security checks of organizations. [0003] In order to ensure that security personnel are protected from radiation hazards, anti-X-ray shielding films are installed at the entrance / exit of the security inspection machine. The shielding film used to be a lead plastic shielding film mainly made of polyvinyl chloride resin. However, when the items to be inspected on the conveyor belt pass through the lead curtain, the lead curtain that is in contact with the item to be inspected will be lifted under the drive o...

Claims

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Application Information

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IPC IPC(8): B32B25/04B32B25/02B32B25/10B32B25/12B32B25/14B32B27/02C08L7/00C08L9/06C08K13/02C08K3/08C08K3/06C08K5/18G21F1/12
CPCB32B25/04B32B25/10C08K3/06C08K3/08C08K5/18C08K13/02C08L7/00C08L9/06G21F1/12
Inventor 缪建明
Owner NANTONG ZHONGHAI PLASTIC PROD
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