Laminated neutron radiation shielding composite material and preparation method thereof

A technology of radiation shielding and composite materials, which is applied in the field of preparation of laminated neutron shielding radiation materials, and can solve problems such as unreachable
CN102529239AInactive Publication Date: 2012-07-04南京核安核能科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
南京核安核能科技有限公司
Publication Date
2012-07-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a laminated neutron radiation shielding composite material and a preparation method thereof; the laminated neutron radiation shielding composite material is in a three-layer composite structure, wherein a bottom layer is a polyethylene fiber reinforced epoxy resin matrix, a middle layer is a boron fiber reinforced epoxy resin matrix, and an upper layer is a polyethylene fiber reinforced epoxy resin matrix which is grafted with acrylic lead. The epoxy resin matrixes comprise materials basically in the following weight portions: 100 portions of bisphenol A epoxy resin, 8 portions to 15 portions of imidazole curing agent and 3 portions to 7 portions of silane coupling agent. In addition, boron carbide (B4C) which occupies 5 weight percent to 20 weight percent of the total weight of the epoxy resin is added into the epoxy resin matrix on the bottom layer; and lead oxide which occupies 10 weight percent to 30 weight percent of the total weight of the epoxy resin is added into the epoxy resin matrix on the upper layer. The laminated neutron radiation shielding composite material is specially manufactured to overcome the defects of a traditional neutron radiation shielding composite material that slowing and absorption functions are not separated so that the functions of an absorbing body cannot be displayed well.
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Description

technical field

[0001] The invention relates to the preparation of a laminated neutron shielding radiation material, which is mainly used in the field of neutron protection. Background technique

[0002] With the advancement of science and technology and human exploration of energy and extraterrestrial space, nuclear technology has been applied in more and more fields. They can provide the required energy for a long time without producing greenhouse gases. This also makes nuclear technology play a pivotal role in today's science and technology. However, nuclear technology is a "double-edged sword". While benefiting mankind, it may also cause serious radiation damage.

[0003] Compared with α-particles, β-particles, γ-photons and other rays that humans have mastered mature radiation shielding technology, the huge difference in the interaction cross-section between neutrons and matter at different energy levels, as well as the large number of secondary γ-rays produced after t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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