黑色碳化硼*防辐射*板

1.含硼超高分子量聚乙烯板的定义：含硼超高分子量聚乙烯板是将碳化硼粉和铅粉均匀地搅拌在高分子聚乙烯材料当中通过高速搅拌、捏合、塑化、热压而成的，是一种新型的复合屏蔽材料。

它是中国工程物理研究院开发的一类新型硬质屏蔽材料，已用于科研、核工程建设及医疗*门的中子及γ射线防护。批量产品已成功用于我国秦山*站一期和****座援外*站（巴基斯坦），产品质量受到用户的好评，取得了良好的经济效益。该产品的理化性能和*辐照性能及屏蔽效应作了充分的实验研究，具有*自主的知识产权。 2.含硼聚乙烯板的优点：聚乙烯是碳氢化合物，含氢量高，对快中子有良好的减弱能力，硼吸收热中子、铅对γ辐射的屏蔽特别有效，因此，铅硼聚乙烯板具有屏蔽快中子，热中子和γ辐射的综合屏蔽效果，含硼聚乙烯板的推广应用****于屏蔽结构的简化，能够减轻屏蔽体的重量，缩小屏蔽体的体积。 含硼聚乙烯板具有良好的工程性能、尺寸稳定性好，具有较满意的耐γ辐射性能，使用温度为80~100℃，屏蔽热中子、快中子和γ辐射性能明显优于聚乙烯，研究表明含硼防辐射聚乙烯板能够有效的*****及中子辐射给个人及社会造成的危害。

3.应用领域及市场分析：

用作*站乏燃料及核实验用产品罐、中子束准直器、中子捕集器、医疗卫生等方面作为辐射屏蔽吸收的材料。

目前，我国*建设已由起步阶段步入规模化建设阶段，但从总体上看，我国*建设还存在规模偏小、自主能力偏低等问题。我国规划*装机容量将由占电力总装机容量的1%****到4%，*站的建设主要是采用引进国外技术与自主建设相结合的方式，对辅助设备和材料的国产化需求强烈，而我所生产的中子吸收板经过国内外用户的多年使用，使用效果证明完全可以取代国外进口产品，具有较好的市场前景。

1 . Definition of boron - containing ultra - high molecular weight polyethylene plate : the boron - containing ultra - high molecular weight polyethylene plate is formed by uniformly stirring boron carbide powder and lead powder in a high - molecular polyethylene material through high - speed stirring , kne*g , plasticizing and hot pressing , and is a novel com*ite shielding material .

It is a new type of ha*hielding material developed by China Institute of Engineering Physics. It has been used in scientific research, nuclear engineering c*truction and medical and health departments for neutron and γ -ray protection. Batch products h*e been successfully used in the first phase of Qinshan Nuclear Power Station and the first foreign aid nuclear power station (Pakistan). The quality of the products has been praised by customers and good economic benefits h*e been obtained. The physical and chemical properties, radiation resistance and shielding effect of the product h*e been fully studied and h*e independent intellectual property rights. 2. The advantages of boron-containing polyethylene plate: polyethylene is a hydrocarbon, high hydrogen content, good ability to weaken fast neutron, boron absorbs thermal neutron, boron absorbs thermal neutron, boron absorbs thermal neutron, boron absorbs thermal neutron, Lead is especially effective for γ radiati*hielding. Therefore, lead boron polyethylene plate has the comprehensive shielding effect of fast neutron, thermal neutron and γ radiation. The popularization and application of boron polyethylene plate is helpful to simplify the shielding structure. Can reduce the weight of the shield and reduce the size of the shield. Boron polyethylene sheet has good engineering properties, good dimensional stability and satisfactory γ radiation resistance. The thermal neutron, fast neutron and γ radiation resistance of boron containing polyethylene is *iously superior to that of polyethylene at the temperature of 80 ~ 100 ℃. The research shows that the boron-containing radiation-proof polyethylene plate can effectively prevent the damage caused by nuclear radiation and neutron radiatio*individuals and society. 

3. Application domain and market analysis

It is used a*aterial for radiati*hielding and absorption in spent fuel and nuclear experiment products, neutron beam collimator, neutro*ap, medical treatment and so on.

At present, the c*truction of nuclear power in China ha*oved from the initial stage to the stage of large-scale c*truction, but on the whole, there are still some problems in the c*truction of nuclear power in China, such as *all scale and low independent capacity. China's planned nuclear power installed capacity will be increased from 1% of the total installed capacity of electric power to 4%. The c*truction of nuclear power stati* i*ainly based on the combination of imported foreign technology and independent c*truction, and there is a strong demand for the localization of auxiliary equipment and materials. The neutron absorber plate produced by me has been used by domestic and foreign customers for many years, and the application effect has proved that it can completely replace foreign imported products, and has a good market prospect.