Product Description
distinguishing feature
Boron carbide (chemical formula B4C) is an extremely hard ceramic material with a Mohs hardness of 9.3 which can absorb a large number of neutrons without forming any radioisotopes, so it is ideal for neutrons in nuclear power plants Absorber, the role of lead is particularly effective in shielding gamma radiation. In the ultra-high molecular weight polyethylene radiation-resistant lead-boron board, on the one hand, due to the shielding effect of lead on gamma radiation, the reaction cross section of boron to low-energy neutrons is relatively large. , the low-energy neutrons have been basically completely absorbed by boron before the hydrogen reaction has occurred; on the other hand, ultra-high molecular weight polyethylene is a hydrocarbon with a high hydrogen content and has a good ability to weaken fast neutrons. Can effectively absorb radiation energy. Therefore, adding lead and boron components to UHMWPE has a comprehensive shielding effect of shielding fast neutrons, thermal neutrons and gamma radiation.
●Technical indicators Radiation-resistant lead-boron polyethylene board product technical indicators |
Boron content: can be customized according the demand |
Lead content: can be customized according the demand |
density： ≥1.028g/cm3 |
density difference：≤0.01g/cm3 |
Operating temperature：-173℃～100℃ |
Thermal deformation temperature（ρ=0.46 Mρa）：72℃ |
Linear expansion coefficient：8.933×10-5 1/℃ |
heat resistant temperature：126℃（dta） |
Thermal strength：≈24mpa |
Impact strength ：≈19kj/m2 |
Products Show
Process characteristics
With ultra-high molecular weight polyethylene as a base, boron carbide powder and lead powder are evenly dispersed in it. The lead-boron polyethylene board is a new type of composite shielding material formed by high-speed stirring, kneading, plasticization and lamination.Why choose us?
1.In 2005, the High Energy Physics Chinese Academy of Sciences Institute purchased the boron-containing polyethylene bricks produced by our company for trial production of anti-radiation products, the effect reached to approval of Chinese Academy of Sciences Physics Institution.
2.Developed by the company's technical department, the production process is advanced and reliable; it can produce ultra-high molecular weight polyethylene lead-boron plates or lead-boron bricks, also can be made into other specifications and shapes as required. Product trial production is available.
3、With a long production history, the company was established in 1996, with strong technical force, a professional production and sales team.
4、The machinery and equipment are advanced and complete, with advanced processing production equipment and independent laboratories in the same industry.
Packing & Delivery
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Company Profile
Workshop
Certifications
FAQ
Q1: Are you a manufacturer?
A1: Yes, we have been in providing the professional products
Q2: Is customized available ?
A2: Yes, according to your detailed drawings you provide.
Q3: How to pay?
A3: Via Paypal ,T/T payment,Trade Assurance and other payment. About the payment details please feel free to contact us. Thank you!
Q4:Can you supply sample?
A4:Yes,we can supply you free small samples,but air cost will be paid by customers.