矿用环保阻燃材料的研究进展

绿色环保阻燃材料用于煤矿不仅可以有效阻燃,而且不会产生大量有毒有害物质,符合环保要求。介绍了矿用环保阻燃材料,即卤系阻燃剂、无卤阻燃剂,特别是发展绿色环保型阻燃剂,包括无卤的膨胀型阻燃剂、纳米级阻燃剂的研究进展。提出绿色阻燃技术和纳米技术的结合将是阻燃材料未来发展的主要方向,与卤素、磷系等阻燃体系相比,无机填料型阻燃复合材料具有低毒、低烟、低腐蚀、价格低廉等优点,属于生理无害物质,对环境友好。     

复合型卤-磷系阻燃剂对聚氨酯阻燃性能影响的实验研究

矿用聚氨酯硬质泡沫(RPUF)普遍用于煤矿井下,提高其阻燃和经济性保障安全生产。实验研究发现:复合型卤-磷系阻燃剂投入聚氨酯原料的体积分数为1/250时,其发泡膨胀系数与聚氨酯原料的程度相同。当卤-磷系阻燃剂比例为1∶2.5,且所占量是聚氨酯原料1/250份数时,阻燃聚氨酯碳化程度以及失重率均为最低,同时还得出其氧指数值最高,接近27左右,阻燃效果明显;烟密度等级具有随着投入卤-磷系阻燃剂比例的升高而降低的规律。     

氢氧化镁阻燃剂的现状和发展

本文讨论了无机阻燃剂的特点和存在的问题，分析了氢氧化镁阻燃剂的特性、阻燃机理，综述了氢氧化镁的国内外应用标准，详细分析了氢氧化镁针对应用于聚合物特点的改性技术，指出了氢氧化镁阻燃剂的发展前景。     

氢氧化镁阻燃材料的制备与应用研究进展

从无机阻燃剂氢氧化镁的性质入手,介绍了氢氧化镁的阻燃机理。结合制备氢氧化镁原料的不同,分类考察了氢氧化镁的不同制备工艺。针对提高氢氧化镁与高聚物的复合阻燃性能,归纳总结了阻燃用氢氧化镁的研究方向,主要包括超细纳米化制备、表面化学改性和胶囊化改性,并就其应用前景进行了简要评述和展望。     

包覆红磷在玻璃钢中的阻燃性能研究

研究了改性包覆红磷作为阻燃剂用于不饱和聚酯树脂玻璃钢的阻燃。解决矿用玻璃钢的阻燃问题，对阻燃机理及在玻璃钢中的应用、性能进行研究。通过检测，性能优越，效果良好，氧指数可达到35，能够满足煤矿安全生产的需要。     

阻燃用氢氧化镁微胶囊技术与应用

采用脲醛树脂作为壁材对氢氧化镁进行微胶囊技术表面改性试验，并将其作为阻燃剂添加入聚乙烯，检测其阻燃性能及对聚乙烯机械力学性能的影响。由此得出结论：微胶囊技术不失为一种对无机聚燃剂表面改性的较好技术。     

磷酸酯类无色透明阻燃剂的研究

磷酸酯类阻燃剂系由胺类、磷酸和甲醛缩聚制得,可合成为固态或液态阻燃剂,分别用于各种高分子聚合物或木制品等的阻燃。对磷酸酯类阻燃剂的生产工艺进行了研究,并简述了其阻燃机理及应用情况。     

阻燃耐磨防腐涂料的研究

利用废旧聚苯乙烯（PS）泡沫塑料改性后作为基料,添加增塑剂、阻燃剂等材料。研究制备了适用于煤矿设备的防腐涂料,给出了涂料性能指标,分析了阻燃机理、耐磨机理及耐腐蚀性能,实现了制备用原料的绿色化。该涂料具有耐磨、防腐、阻燃、绝缘等性能,具有广泛的用途。     

阻燃耐磨防腐涂料的研究

利用废旧聚苯乙烯（PS）泡沫塑料改性后作为基料,添加增塑剂、阻燃剂等材料,研究制备了适用于煤矿设备的防腐涂料,给出了涂料性能指标,分析了阻燃机理、耐磨机理及耐腐蚀性能,实现了制备用原料的绿色化.该涂料具有耐磨、防腐、阻燃、绝缘等性能,具有广泛的用途.     

新型煤炭阻燃剂FSA及其应用

介绍一种新型煤炭阻燃剂FSA的阻燃机理及其在煤矿安全工程领域的应用。该阻燃剂将煤由可燃物改性为不可燃的工程材料，可广泛应用在煤矿井下临时密闭、封堵溜煤眼、工作面上、下隅角砌墙阻断漏风通道及提高工作面上、下隅角瓦斯抽放率的工作中，在现场取得了很好的效果，有较高的推广应用价值。     

Current situation and future trend of China rare earth luminescent materialindustry(continued)

<正>Developing ecological lighting source The world is facing the big problem of energy shortage today and the contradiction between economy development and environmental protection is worsened.Therefore,people are more likely to choose an ecological light source that is more energy efficient and environmental friendly.The choice provides great opportunity for the development of rare earth optical material industry in China.The concept of green lighting positions rare earth luminescent material as a leading player in illumination market.The light source of both rare earth luminescent lamp and LED lamp is ecological and energy saving.This is why     

Galaxy Magnets achieved the net profit of 34.02 million yuan in the first six months of 2014

正Galaxy Magnet announced its financial results for the first half of 2014 on August 14.For the first six months ended on 30 June 2014,Galaxy Magnet achieved operation income of RMB 182.3 million,up8.40% over the same period of 2013,and the net profit attributable to the shareholders of the listed company of 34.02 million yuan,increasing 35.49% over the same period of last year.Stable performance increase was led by development of new customers and application market of magnets.     

Rare Earth Application in Steel in China

<正>China has rich rare earth resources.Output of rare earth and steel in China ranks the top first in the world.However,there is still certain distance between the steel produced in China and developed countries from the point of varieties and quality.China still has to import some types of steel.Improving the quality should be emphasiZed in future development of steel industry in China.Rare earth can be used to upgrade traditional steel     

China rare earth market review

正November 21~30,2014Due to weak demand from downstream industries,transactions of rare earth in Chinese domestic market were inactive.It was difficult to sell any rare earth products except for dysprosium oxide and terbium oxide.Suppliers lost confidence in recent market.Demand for rare earth products was soft.Consumers continued to take a wait-and-see attitude.Rare earth export market remained slow.     

稀散金属产业的观察与思考

分析了近年来国内外稀散金属产业的生产、应用、资源与市场状况.铟锡氧化物靶材、砷化镓晶片、锗红外材料、铼高温合金和硒在电解锰及玻璃的应用等已成为稀散金属的主要应用领域.稀散金属的产量快速增长达到历史高位而导致了市场的失衡.以GaInP_2/GaAs/Ge,CIGS和CdTe为代表的非硅系太阳能电池是稀散金属的新兴应用领域,将给稀散金属带来日益增长的需求.     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared