超高分子量聚乙烯具有其它工程塑料無法比擬的耐磨性。耐沖性、耐化學(xué)藥品、自潤滑等性能，在國民經(jīng)濟(jì)的各個領(lǐng)域，尤其是耐磨輸送、設(shè)備襯里、各種機(jī)械零部件等方面的應(yīng)用具有獨(dú)特優(yōu)勢、其產(chǎn)品的開發(fā)和應(yīng)用具有廣闊的前景，新應(yīng)用領(lǐng)域( 如汽車領(lǐng)域)的開發(fā)，正受到人們的關(guān)注。

超高分子量聚乙烯(UHMW-PE)是一-種新型熱塑性工程塑料，它的分子結(jié)構(gòu)和普通聚乙烯完全相同，普通聚乙烯的分子量- -般在4萬~12萬，而超高分子量聚乙烯可達(dá)到100~400萬。隨著分子量的大幅度升高，樹脂的某些性能會發(fā)生突變，比如耐磨性佳;抗沖擊性強(qiáng)，而且在低溫時抗沖擊強(qiáng)度仍保持較高數(shù)值;自潤滑性好等。UHMW 一PE 可以而且在取代碳鋼、不銹鋼、青銅等，用于紡織、造紙、食品機(jī)械、運(yùn)輸、陶瓷、煤炭等領(lǐng)域。

含硼聚乙烯是一-種相對廉價的中子屏蔽材料，對其中子屏蔽特性已進(jìn)行過--維基準(zhǔn)實(shí)驗(yàn)。與其他中子屏蔽材料- -樣，該材料在中子的作用下產(chǎn)生γ射線。相對于屏蔽中子而言，y射線是二級劑量。

而在含硼聚乙烯球中，主要是硼起吸收作用。硼對低能中子的反應(yīng)截面比較大，在還沒有發(fā)生氫的反應(yīng)之前低能中子基本已被硼完全吸收，含硼聚乙烯在質(zhì)量百分比為10%、厚度為15cm時，含硼聚乙烯對中子的屏蔽效果已達(dá)到要求。在此基礎(chǔ)上再增加含硼量或者厚度,中子的積分泄露量基本不發(fā)生變化。

寧津豪沃橡塑有限公司通過對本實(shí)驗(yàn)的最終結(jié)論在對含硼聚乙烯的百分比與厚度.上再次做了-系列的研發(fā)，具有抗輻照性能好，無活化產(chǎn)物，次級Y射線能量低;化學(xué)穩(wěn)定性好,耐腐蝕，無毒、無氣味;機(jī)械強(qiáng)度高，表面光滑、便于去污、機(jī)械加工方便、易于安裝維修的特點(diǎn)。Ultra high molecular weight polyethylene has unmatched wear resistance of other engineering plastics. Impact resistance, chemical resistance, self-lubrication, such as perbance, in the areas of the national economy, especially the wear-resisting lining, equipment, all kinds of mechanical transmission parts and so on applications has unique advantages, the development of its products and has a broad application prospect of the development of new application fields, such as cars, has been the attention of people.


Ultra high molecular weight polyethylene (UHMW-PE) is a new type of thermoplastic engineering plastics, its molecular structure and ordinary polyethylene is exactly the same, ordinary polyethylene molecular weight - - in the 40,000 ~ 120,000, and ultra high molecular weight polyethylene can reach 1 ~4 million. With the increase of molecular weight, some properties of resin will change, such as good wear resistance; Strong impact resistance, and impact strength at low temperature still maintain a high value; Self lubrication is good, etc. UHMW - PE can replace carbon steel, stainless steel, bronze and so on, used in textile, paper making, food machinery, transportation, ceramics, coal and other fields.


Boron-containing polyethylene is a relatively cheap neutron shielding material, and the characteristics of neutron shielding have been tested. Like other neutron shielding materials, it produces gamma rays in response to neutrons. In contrast to shielded neutrons, y rays are second-order doses.


In boron-containing polyethylene spheres, boron is the main absorber. The cross section of boron reb to low energy neutrons is relatively large, and the low energy neutrons have been basically absorbed by boron before hydrogen reb. When the mass percentage of boron-containing PE is 10% and the thickness is 15cm, the shielding effect of boron-containing PE on neutrons has reached the requirements. If the boron content or thickness is increased, the neutron integral leakage will not change.


Ningjin Haowo Rubber & Plastic Co., LTD. Through the final conclusion of this experiment on the percentage and thickness of boron-containing polyethylene. On the r & D again - series, with good anti-irradiation perbance, no activation products, low secondary Y ray energy; Good chemical stability, corrosion resistance, non-toxic, odorless; Features of high mechanical strength, smooth surface, easy decontamination, convenient machining and easy installation and maintenance.