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1.
徐美君  王铁铮 《玻璃》2009,36(9):45-52
介绍了当今人们较为关注的玻璃与环保息息相关的新品开发和其环保节能功效,简要阐述了近年来我国与环保节能工程相关的玻璃产品研发与推广应用状况、几种不同类型环保类玻璃的生产工艺及特性。同时还介绍了其中节能的低辐射(Low—E)膜玻璃产品的生产、发展状况;这对大力发展环境工程玻璃、节能工程玻璃、防辐射工程玻璃、防腐蚀工程玻璃、防污染工程玻璃等产品仍然有其一定的研发意义和参考价值。  相似文献   

2.
徐美君  王铁铮 《玻璃》2009,36(11):40-45
介绍了当今人们较为关注的玻璃与环保息息相关的新品开发和其环保节能功效,简要阐述了近年来我国与环保节能工程相关的玻璃产品研发与推广应用状况、几种不同类型环保类玻璃的生产工艺及特性。同时还介绍了其中节能的低辐射(Low-E)膜玻璃产品的生产、发展状况;这对大力发展环境工程玻璃、节能工程玻璃、防辐射工程玻璃、防腐蚀工程玻璃、防污染工程玻璃等产品仍然有其一定的研发意义和参考价值。  相似文献   

3.
徐美君  王铁铮 《玻璃》2009,36(8):40-47
介绍了当今人们较为关注的玻璃与环保息息相关的新品开发和其环保节能功效,简要阐述了近年来我国与环保节能工程相关的玻璃产品研发与推广应用状况、几种不同类型环保类玻璃的生产工艺及特性。同时还介绍了其中节能的低辐射(Low—E)膜玻璃产品的生产、发展状况;这对大力发展环境工程玻璃、节能工程玻璃、防辐射工程玻璃、防腐蚀工程玻璃、防污染工程玻璃等产品仍然有其一定的研发意义和参考价值。  相似文献   

4.
徐关君  王铁铮 《玻璃》2009,36(10):40-45
介绍了当今人们较为关注的玻璃与环保息息相关的新品开发和其环保节能功效,简要阐述了近年来我国与环保节能工程相关的玻璃产品研发与推广应用状况、几种不同类型环保类玻璃的生产工艺及特性。同时还介绍了其中节能的低辐射(Low—E)膜玻璃产品的生产、发展状况;这对大力发展环境工程玻璃、节能工程玻璃、防辐射工程玻璃、防腐蚀工程玻璃、防污染工程玻璃等产品仍然有其一定的研发意义和参考价值。  相似文献   

5.
工程塑料增强改性用玻璃纤维及其发展动向?   总被引:1,自引:0,他引:1  
介绍了玻璃纤维增强改性工程塑料的发展概况;讨论了玻璃纤维表面处理剂、玻璃纤维在树脂中的分散性和长径保留比、玻璃纤维含量等对玻璃纤维增强改性工程塑料的影响,以及双螺杆挤塑用长玻璃纤维、短切玻璃纤维、LFT用长玻璃纤维的特性。指出了工程塑料增强改性用玻璃纤维的选用原则及方法。双螺杆挤塑用短切玻璃纤维和LFT用长玻璃纤维具有良好的市场前景。  相似文献   

6.
Growth rates of production of up-to-date technical materials of different classes are specified. The main reasons for accelerated development of new materials, including glass ceramics are considered. Principal attention is focused on capabilities and application specifics of various types of glass ceramics (heat-resistant high-strength, clear nanostructured, electrically active, bioactive, constructional) in advanced fields of contemporary engineering, industries, construction, and medicine. Properties of glass ceramics of the above types are specified.  相似文献   

7.
《Ceramics International》2022,48(3):3729-3739
The focus of bone tissue engineering is to realize the regeneration of new functional bone through the synergistic combination of biomaterials, therapeutic agents and cells. Doping of mesoporous bioactive glass (MBG) nanoparticles with therapeutic ions to give them special properties is gaining increasing interest in the design of biomaterials for bone tissue engineering. In this study, we synthesized Se-doped and Te-doped MBG nanoparticles using the sol-gel method, and demonstrated for the first time that the homology of Se and Te endows the functional similarity of bone tissue engineering, and also obtains the desired properties by guiding cell behavior and changing the physicochemical properties of the biomaterial. Results found that MBG nanoparticles doped with Se and Te respectively can be gained similar structure, and thus endowed their similar properties as expected, such as drug sustained release, anticancer and antibacterial properties in a dose-dependent manner. This study provides a feasible strategy for the development of homologous group ions doped nanobiomaterials and their evaluation and basic research in bone tissue engineering.  相似文献   

8.
Each year, hundreds of thousands of tons of industrial wastes are being stockpiled, landfilled, and disposed of in storages occupying large areas of land that would otherwise be available for productive use. Recycling of such wastes is now becoming of urgent global interest due to an increasing population, the rise in anthropogenic activities, and the need for more efficient resource and waste management systems. Among many wastes, the generation of glass is dramatically increasing, particularly in the municipal, industrial, and construction sectors. In civil engineering, in general, crushed waste glass has been mainly investigated as a substitute for sand and fine-grained aggregate in concrete production. In geotechnical engineering, in particular, the application of glass wastes is mainly limited to road pavements or as an additive to different soils for subgrade improvement. While glass wastes are relatively inert and potentially offer several opportunities for recycling as a substitute for diminishing and increasingly expensive sand supplies, their potential use yet remains relatively under-researched. This paper systematically reviews the current status of knowledge on the use of glass wastes in various civil engineering applications and discusses the suitability assessment of waste glass for use as a sustainable alternative to traditional civil engineering materials.  相似文献   

9.
In this study, a new class of bioactive glass scaffolds was prepared through freeze casting method for bone tissue engineering applications. After analyzing the structural characteristics of the scaffolds, in vitro biological evaluations were assessed through monitoring alkaline phosphatase (AP) activity of osteoblast cells and soaking in simulated body fluid (SBF) for different time intervals. It was shown that the scaffolds consisted of bioactive glass plates with interconnected pores between them, aligned along the ice growth direction. The ability of the scaffolds for supporting the growth of human fetal osteoblastic cells (hFOB 1.19) was approved. Moreover, inductively coupled plasma-atomic emission spectrometry (ICP-AES) showed meaningful compositional changes of calcium, phosphorus and silicon in SBF solution, indicating the apatite forming ability of the scaffolds. The present investigation revealed that freeze casting could be an effective method for the preparation of highly bioactive scaffolds. In addition, the scaffolds proved to be highly compatible for the proposed works in vivo.  相似文献   

10.
生物活性玻璃多孔材料的制备及性能研究   总被引:2,自引:0,他引:2  
采用溶胶-凝胶法制备生物活性玻璃58S及77S;通过熔融法制备生物活性玻璃45S5,分别向上述3种生物活性玻璃粉体以及它们的混合物中添加一定比例的造孔剂,通过一定的烧结工艺制成具有不同组成的生物活性多孔材料,利用体外实验方法结合DTA,SEM及FTIR等材料显微结构及性能研究手段分析比较了各种多孔材料的显微结构、表面形貌、抗折强度及生物活性.研究表明:58S和45S5混合制备的多孔材料是一种具有良好生物活性和生物矿化特性的生物材料,可用于制备骨缺损填充材料和骨组织工程支架.  相似文献   

11.
高强玻璃纤维复合材料的性能及应用   总被引:4,自引:0,他引:4  
本文研究了一种新研制生产的纤维复合材料,阐述了这种新型防弹材料优异的机械性能和抗弹性能,简要介绍了成型工艺技术,探讨了它在防护工程和民用领域中的应用及前景。  相似文献   

12.
Perfluorinate glass ceramics with ultra-low phonon energy are very important optical and photonic materials. Unfortunately, there is no suitable method to obtain transparent perfluorinate glass ceramics due to poor thermal stability of fluoride glass. As a result, wide applications of glass ceramics in advanced infrared systems are restricted. Here, an effective method based on phase-separation engineering is used to develop transparent perfluorinate glass ceramics. In this article, a novel transparent Er3+-doped ZnZrF6-Ba6Zn7F26 perfluorinate glass ceramic was designed and fabricated by phase-separation engineering. The sample exhibits low phonon energy (564 cm−1), ultra-wide transmission range (0.33–8.2 μm, T ≥ 50 %), and strong infrared emission, which is better than that of ZBLAN glass, oxide-, and oxyfluoride-glass ceramics. These good properties of the perfluorinate glass ceramic demonstrate that phase-separation engineering not only offers an effective approach to obtain perfluorinate glass ceramics but also provides wide-ranging opportunities for advanced infrared optical and photonic materials.  相似文献   

13.
《Ceramics International》2023,49(16):26338-26347
This study developed a new hot pressing process to prepare superhydrophobic surfaces with controllable shape and size on a glass substrate. Microstructures were fabricated on tungsten carbide mold via picosecond laser processing. Microgroove structures were reproduced on glass during the hot embossing process and SiO2 nanoparticles laid on the mold were also embedded into the glass surface under the action of heat and pressure to provide nanostructures. The contact angle of the superhydrophobic glass surface reached up to 161.8°, and the sliding angle was only 3°. The structures and chemical composition of superhydrophobic glass surface were identified by scanning electron microscopy (SEM), energy-dispersive X-ray spectrometer (EDS), X-ray diffraction (XRD), and Fourier transformed infrared (FTIR) spectroscopy. The 3D laser scanning microscopy result showed the height (20 μm) of the microgroove structures, while white light interferometry revealed the surface roughness (Ra 2.725 μm). The superhydrophobic glass surface demonstrated satisfactory temperature resistance and chemical stability through temperature and acid and alkali solution immersion tests. The surface exhibited certain mechanical stability by friction and wear test. This work provides a new hot embossing method for solving the problem of structural consistency and mass production of superhydrophobic glass, and will have great application prospects in the engineering field.  相似文献   

14.
本文介绍了玻璃钢、纳米橡塑、工程塑料和硬质合金四种新型材料的优良性能和在离心机上的使用情况,并对离心机材料的发展趋势进行了展望。  相似文献   

15.
超韧性增强尼龙66是超韧性尼龙66用玻璃纤维增强改性的品种,是一种强度和韧性均十分优越的新型材料.介绍了用玻璃纤维增强超韧性尼龙66的生产工艺,讨论了生产工艺对材料物化性能的影响。同时还研究了超韧性高强度尼龙66的部分物化性能,说明超韧性高强度尼龙66是一种理想的工程塑料.  相似文献   

16.
徐世前 《中国涂料》2005,20(5):40-42,i002
以EVA乳液、硅溶胶为主要成膜物质,玻璃纤维为增强抗裂成分,加入适量填料及助剂配制成低成本水性外墙浮雕涂料。讨论了原材料的选择及生产成本,并通过了工程实际使用。结果表明,浮雕斑点圆润、硬度高、耐水性好,是一种实用型的建筑外墙涂料。  相似文献   

17.
Nanoscale science and engineering, or “nanotechnology” as it is commonly known, has been a fundamental component of glass technology for hundreds if not thousands of years. Numerous examples can be found where our understanding of glass at the nanoscale level has proved transformational in the fabrication and application of this material. Among these are band theory, photosensitivity, ligand field theory, glass structure, microcrack theory, amorphous phase separation, controlled crystallization, and surface modification. Modern applications of glass in such diverse fields as energy, medicine, electronics, photonics, and communications are critically dependent on our awareness and appreciation of the intrinsic connections between glass and nanotechnology. Starting at the low end of the nanoscale, we review fundamental aspects of these connections with the intent of drawing attention to their role in both contemporary and future glass science and engineering. We argue that many of the most useful and interesting behaviors of glass are born at the nanoscale, even when we initially do not notice it.  相似文献   

18.
Traditionally, new materials are developed in response to the requirements of an emerging device technology. In the optical fiber case, development of glass as a transmission medium came as the culmination of a century-long quest for improved broadband telecommunications, a search that established the superiority of light signals transmitted through glass over electronic signals transmitted by wire.  相似文献   

19.
Increasing the number of luminescence emitters without concentration quenching is essential to realize the high doping in silicate glass system, which is favorable for the output of single-frequency fiber lasers. In this work, the concentration quenching threshold of mid-infrared luminescence is enhanced by 60% after macro-scale manipulation of glassy structure. The reason can be attributed to the reduced maximum phonon energy after the increasing of Pb content and the increasing number of emitters due to the looser glassy network. The absorption and emission cross sections after structural engineering can reach to 0.75?×?10–20 cm2 and 1.53?×?10–20 cm2, respectively. These results reveal that the concentration quenching threshold can be effectively enhanced through the structural manipulation in a wide range, and the prepared lead silicate glass after structural engineering can be the ideal candidate for drawing optical fiber and are potential in future optical applications.  相似文献   

20.
Glasses can be engineered with a wide range of properties and in a variety of forms that make them important materials for current and emerging energy and environmental technologies. The increasing worldwide demand for sustainable, environmentally friendly energy supplies, and for access to clean water, will provide glass scientists and manufacturers opportunities to develop new materials for new markets. Glass applications for solar, wind and nuclear power generation are reviewed, and recent research on new glassy materials for super-capacitors and electrochemical devices is discussed, with an emphasis on the needs that will drive glass research through the year 2020.  相似文献   

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