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十一五规划收官之年,我曾以《盘点十一五,铸就塑料工业大国强省》为题,全面介绍了十一五期间,在金融危机冲击下,塑料工业实现快速发展的情况。尽管国际、国内经济环境复杂,行业、企业在困难的条件中运营,我国塑料工业仍逆势发展,使十一五成为塑料加工业发展最快、最好的黄金时期。广东省塑料行业也一样,塑料制品产量年均以20%的幅度增长,总产量五年翻番,成为国内塑料制品年产量超千万吨的塑料工业大省。 相似文献
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广东省目前是华南地区乃至我国最大的塑料加工工业省份,广东省塑料产业在我国占有相当重要的位置。借此机会,我就广东省塑料产业现状、问题、发展等情况作简单介绍。12005年广东省塑料产业现状广东省塑料工业经过二十多年的发展,目前已成为广东省轻工行业支柱产业之一,目前在我 相似文献
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广东省塑料工业经过近二十年的高速发展,目前已成为广东省轻工行业的支柱产业之一。在我国的塑料加工行业中,广东省塑料产业占有相当重要的位置,是目前最大的塑料加工省份,产量、技术、行业效益等各项指标多年来居全国首位,整体行业水平领先于全国。广东省塑料工业协会作为政府部门与会员单位联系的桥梁和纽带,为行业、会员服务,维护会员合法权益,引导并促进塑料行业的发展做了大量的工作。 相似文献
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广东省塑料工业经过近二十年的发展,目前已成为广东省轻工行业的支柱产业之一。在我国的塑料行业中,广东省是塑料加工第一大省,塑料制品产量、加工技术、行业效益各项指标多年来居全国首位,整体水平领先于全国。目前,随着我国经济的发展以及国内区域性经济格局的形成,广东省塑料产业面临新的机遇,参与国内、国际区域经济的交流和竞争,对打造塑料产业大省、强省, 相似文献
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广东省塑料工业经过近二十年的高速发展,目前已成为广东省轻工行业的支柱产业之一。在我国的塑料加工行业中,广东省塑料产业占有相当重要的位置,是目前最大的塑料加工省份,产量、技术、行业效益等各项指标多年来居全国首位,整体行业水平领先于全国。同时,我省塑料行业在高速发展过程中,不但打下了良好的产业基础,而且行业整体基本走过了原始发展阶段,储蓄有强劲的继续发展潜力。 相似文献
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以超低灰的煤炭LAC为原料,得到了可以代替石油焦用于阳极制作的原料CLAC。研究了由CLAC制作的阳极各项理化性能及在大型铝电解槽上的应用,认为添加部分CLAC制作的炭阳极可以满足铝电解槽对阳极的使用要求。 相似文献
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We all make use of oxide ultrathin films, even if we are unaware of doing so. They are essential components of many common devices, such as mobile phones and laptops. The films in these ubiquitous electronics are composed of silicon dioxide, an unsurpassed material in the design of transistors. But oxide films at the nanoscale (typically just 10 nm or less in thickness) are integral to many other applications. In some cases, they form under normal reactive conditions and confer new properties to a material: one example is the corrosion protection of stainless steel, which is the result of a passive film. A new generation of devices for energy production and communications technology, such as ferroelectric ultrathin film capacitors, tunneling magnetoresistance sensors, solar energy materials, solid oxide fuel cells, and many others, are being specifically designed to exploit the unusual properties afforded by reduced oxide thickness. Oxide ultrathin films also have tremendous potential in chemistry, representing a rich new source of catalytic materials. About 20 years ago, researchers began to prepare model systems of truly heterogeneous catalysts based on thin oxide layers grown on single crystals of metal. Only recently, however, was it realized that these systems may behave quite differently from their corresponding bulk oxides. One of the phenomena uncovered is the occurrence of a spontaneous charge transfer from the metal support to an adsorbed species through the thin insulating layer (or vice versa). The importance of this property is clear: conceptually, the activation and bond breaking of adsorbed molecules begin with precisely the same process, electron transfer into an antibonding orbital. But electron transfer can also be harnessed to make a supported metal particle more chemically active, increase its adhesion energy, or change its shape. Most importantly, the basic principles underlying electron transfer and other phenomena (such as structural flexibility, electronic modifications, and nanoporosity) are now largely understood, thus paving the way for the rational design of new catalytic systems based on oxide ultrathin films. Many of the mechanisms involved (electron tunneling, work function changes, defects engineering, and so forth) are typical of semiconductor physics and allow a direct link between the two fields. A related conceptual framework, the "electronic theory of catalysis", was proposed a long time ago but has been largely neglected by the catalytic community. A renewed appreciation of this catalytic framework, together with spectacular advances in modeling and electronic structure methods, now makes it possible to combine theory with advanced experimental setups and meet the challenge of designing new materials with tailored properties. In this Account, we discuss some of the recent advances with nanoscale oxide films, highlighting contributions from our laboratory. Once mastered, ultrathin oxide films on metals will provide vast and unforeseen opportunities in heterogeneous catalysis as well as in other fields of science and technology. 相似文献
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随着科学技术的不断发展,汽车的研发及生产阶段越来越多地采用新材料及新工艺,这也使得人们对汽车轻质化、低成本、智能化、经济性和可靠性的要求成为可能。特种陶瓷具有各种优异、独特的性能,应用在汽车上,对减轻车辆自身质量、提高发动机热效率、降低油耗、减少排气污染、提高易损件寿命、完善汽车智能性功能都具有积极意义。车用陶瓷已引起工程领域材料科学的关注,根据碳化硅等特种陶瓷的结构性能及种类,分别介绍了陶瓷发动机、热敏陶瓷传感器、车用催化净化器的陶瓷载体、尾气净化蜂窝陶瓷材料载体、柴油车排气净化陶瓷蜂窝过滤器和陶瓷汽车制动器刹车片,以及车用陶瓷轴承等实例,充分反映了车用陶瓷新材料的研究和开发其应用前景广阔。 相似文献
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工程创优在石化工程建设系统已开展了十余年,每年石化集团总部都组织评选部级优质工程(集团公司优质工程)并根据部优工程的情况向全国工程建设行业协会推荐国家级优质工程. 相似文献
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