世界上先进的xx防弹复合材料的基本配置，基本上是相似的。主要包括职能一体化战术背心外套的芳纶或超高分子量聚乙烯纤维防弹系统使用软质层，以及在加强保护子弹用防水板插入。 2001年1月美军开始装备的“拦截”的防弹背心，主要由软拉佳吊舱系统的防弹层，碳化硼防弹陶瓷板的提出，证明文件;法国维和xx的装备与防弹背心和防弹插板和基于超高分子量聚乙烯纤维，一个不超过5公斤的一整套质量，xx北约5.56毫米，7.62毫米突击俄罗斯普通步枪弹的袭击能力。宁波大成公司

单向的超高分子量聚乙烯纤维纬编织物没有产生2厘米厚，可以有效的防御插板的AK - 47突击步枪，作为一个普通的xx袭击事件表示;1厘米碳化硅或氧化铝陶瓷材料一起大约有50个厚件无纬单向超高分子量聚乙烯纤维的纤维制成的布片防弹插板狙击步枪穿甲弹能抵抗攻击层，以便在董事会30厘米× 25厘米，重约2.6公斤。目前，我军装备了95式突击步枪，口径5.8，弹丸初速九百三十○米/秒，属于世界的一大突击步枪，这个委员会一个大国也可以有效的保护。

由于没有大规模的生产，中国的高强度聚乙烯纤维和实现单向纬编织物，使中国的每一个士兵的价值将配备5000全套保护装备，包括头盔，防弹背心，陶瓷板，护颈，肩垫等的水平赶上了美国的国防设备，接近世界上{zg}的。宁波大成

公司以高强度聚乙烯纤维基材料的防弹系列防爆产品充分利用国际，国内市场，远销欧洲，中东，南亚和非洲40多个国家和地区一般用户。 2004年，伊拉克战场上有两个穿着甚至数发炮弹大成xxx的英国士兵，防弹背心没有渗透成功地保护了两个战士的生命。

4.2纤维缠绕压力容器

超高分子量聚乙烯与其它高性能纤维性能的纤维见表2。

表2UHMWPE与其它高性能纤维强度纤维相比
性能/（千克/米）模数/（千克/米）伸长率/比强度比
超高分子量聚乙烯纤维0.97％模量气缸压缩天然气的车辆，在一个主要设备。大成采用高强度聚乙烯纤维，碳纤维，玻璃纤维混合纠缠，不仅有效地降低了气瓶质量，还提高了气缸冲击强度，吸收能量和抗疲劳性能水平，具有悠久生活，耐腐蚀，抗疲劳，安全可靠，体积密度比大，电绝缘保护等。

4.3工程

结构增强纤维增强复合材料（Fiber-ReinforcedPlastic/Poly-mer，玻璃钢）是一种高性能结构复合材料的新类型。重量轻，强度高，耐腐蚀，耐疲劳性优于建筑钢材的特点。因此，民用建筑在使用玻璃钢加固钢筋结构比其他传统方法有一个非常明显的优势。玻璃钢材料的使用有以下优点：施工速度快，施工干扰小，质量容易保证，额外负荷小，时效长的应用，降低总成本和加固结构的外观后没有改变和形状等。

玻璃钢钢筋最常用的方法是在混凝土结构表面粘贴的方法，通过树脂粘合剂即在元件表面，应该加强粘贴玻璃布或板，以增加或改善其力学性能。但是，这种方法也有不足之处，即糊玻璃钢部件容易受到恶劣环境的表面（高温，高湿度和冻融等）的不利影响，容易磨损和冲击载荷，例如发生事故的作用，不火，不容易和相邻锚，如需要改进的地方元素。

外国研究人员最近提出NSM法（NearSurfaceMounted），即是要加强开槽部件的表面（混凝土保护层），玻璃钢加固或一板，与同成分的密切结合使用粘合剂，嵌入式加强其能力弯曲或剪切的目的。这是一种很有前途的新技术，结构加固，它是相对于贴面，而且还具有以下主要优点：玻璃钢在具体的保护层安装，您可以避免如磨损和事故负荷的影响，特别适用于连续梁桥面板和负弯矩区加固; FRP与混凝土粘结面积，提高玻璃钢加固和利用效率，是对处理的工作量，提高效率，和用户的混凝土构件表面减少友好相邻组件锚，可以用来代替水泥基粘合剂树脂，可在高温，钢筋工程高湿使用。此外，玻璃钢肌腱也更合理的价格，在近年，NSM方法研究国内外玻璃钢钢筋混凝土结构技术，一个新的热点。

加强为例，碳纤维和芳纶目前世界上主要的高性能增强纤维新材料使用二手工程。大成初步研究结果表明，高强度聚乙烯纤维，碳纤维，芳纶相比，最小密度，强度{zg}，良好的耐化学性，良好的耐低温，抗紫外线性能好，具有更好的成本效益。在桥梁，隧道，房屋及其他抗震加固加固结构具有非常广阔的应用前景。

5结论

宁波大成公司已成为世界上{dy}个大规模生产的4个高强度聚乙烯纤维和他们自己的高，2005年高新技术企业的知识产权，宁波大成高强度聚乙烯纤维已xx进入2.8亿国际市场取得了可观的经济效益和社会效益巨大。宁波大成公司目前正在利用这个迅速扩大，超过1200吨的电流输出机遇/年，预计将达到1600吨月底/规模，一当纤维的产量将超过美国，仅次于以荷兰帝斯曼公司，在世界上的第二位。宁波大成

，主要是基于企业和知名科研院所，联合国宣布的共同国家863科技发展项目，以超高分子量聚乙烯为增强各种高性能纤维复合材料的开发，在人为弹道防护设备，航空航天，火箭，战斗机，船舶，风力发电，高压缸，建造工程，如结构加固，以开发更多的应用领域。xx武器和装备，促进升级和提高xx战斗力，在碳纤维替代更多的地区，有关武器装备制造费用节省;能够形成一个新的军民两用技术，把xx，并有力地推动了中国的未来产生重大高新技术产业等作出新的贡献。

High-strength polyethylene fiber industry and its application of composite materials (b)

The world’s advanced composite materials for military bulletproof basic configurations are basically similar. Mainly include the integration of functions has tactical vest jacket, the use of aramid or UHMWPE fiber system bulletproof soft layer, and the strengthening of protection used in bullet-proof plate inserted. The U.S. military in January 2001 started to equip the “interception” in a bullet-proof vest, mainly made of soft pull-kai pod system bullet-proof layer to boron carbide ceramic plates made of bullet-proof; the French peacekeeping force is equipped with bullet-proof vests and bullet-proof Flashboard and are based on ultra-high molecular weight polyethylene fiber, a full set of the quality of not more than 5kg, capable of resisting the NATO 5.56mm, Russian 7.62mm assault rifle shells ordinary attacks. Ningbo Dacheng Company

to UHMWPE fiber unidirectional weft fabric produced no 2cm thick can be an effective defense Flashboard to AK-47 assault rifles, as represented by an ordinary bomb attacks; 1cm thick pieces of silicon carbide or alumina ceramic material together with about 50 layers without weft unidirectional UHMWPE fiber cloth made of fiber-chip Flashboard bulletproof armor piercing sniper rifle can resist the attack, so that a board of 30cm × 25cm, weighing about 2.6kg. At present, our army is equipped with 95-style assault rifles, caliber 5.8mm, projectile muzzle velocity 930m / s, belonging to the world the power of a large assault rifle, one of this board can also be effective protection.

due to China’s realization of high-strength UHMWPE fibers and unidirectional weft fabric without the large-scale production, making China the value of the soldiers will each be equipped with a complete set of 5,000 protective equipment, including helmets, bullet-proof vests, ceramic plates, Guarding neck, shoulder pad, etc., the level of catch-up the U.S. defense equipment, close to the highest in the world. Ningbo Dacheng

company to high-strength polyethylene fiber-based materials a series of bullet-proof products have full access to the international and domestic market, are exported to Europe, Middle East, South Asia, and Africa more than 40 countries and regions, generally the users. In 2004, the battlefield of Iraq have two British soldiers wearing flak jackets Dacheng even several shells, and bullet-proof vests have not been penetrated successfully protected the lives of the two fighters.

4.2 filament-wound pressure vessels

UHMWPE fiber with other high performance fiber properties is shown in table 2.

Table 2UHMWPE fiber with other high-performance fiber strength compared
performance / (kg / m) modulus / (kg / m) Elongation /% modulus than the intensity ratio
UHMWPE fiber 0.97 cylinders are compressed natural gas vehicles, one of the main equipment. Dacheng using high-strength polyethylene fiber and carbon fiber, glass fiber mixed entanglement, not only effectively reduces the quality of gas cylinders, but also improve the impact strength of the cylinder, the level of energy absorption and resistance to fatigue performance, with a long life, anti-corrosion, fatigue-resistant, safe, reliable, bulk density than the large, electric insulation protection, etc..

4.3 works

structure reinforcing fiber reinforced composites (Fiber-ReinforcedPlastic/Poly-mer, FRP) are a new type of high-performance structural composite materials. With light weight, high strength, corrosion resistance, fatigue resistance is superior to the characteristics of construction steel. Therefore, the structure of civil construction in the use of FRP reinforcement than reinforcement steel or other traditional methods have a very distinct advantage. The use of FRP materials have the following advantages: faster construction, construction of small interference, quality easy to guarantee that the additional load of small, application of statute of limitations long, and lower total cost and the reinforcement structure is not changed after the appearance and shape, etc..

FRP reinforced concrete structures most commonly used method is the surface-paste method, namely through the resin binder, in the component surface to be reinforced paste FRP cloth or boards, to enhance or improve their mechanical properties. However, this method there are also inadequate, that is, the surface of FRP paste components vulnerable to harsh environment (high temperature, high humidity and freezing and thawing, etc.) the adverse impact of, vulnerability to wear and impact loads, such as the role of accidents, not fire, it is not easy and adjacent anchoring elements such as the need to improve the place.

foreign researchers recently proposed NSM Act (NearSurfaceMounted), that is to be reinforced slotted component surface (concrete protection layer), the FRP reinforcement or embedded in one slab, the use of binders with components combined with the close, to strengthen its ability to bend or shear the purpose. This is a promising structural reinforcement of new technologies, it is compared with the surface of paste, but also has the following main advantages: FRP mounted in the concrete layer of protection, you can avoid accidents such as wear and impact loads, especially applicable to continuous beam bridge panel and the reinforcement of negative bending moment region; FRP and concrete bonding surface area, increasing the utilization of FRP reinforcement and efficiency; a reduction of the concrete structures on the surface of the handle the workload, increase efficiency, and user-friendly and phase o-component anchor; can be used to replace the cement-based binder resin, which can be used in high temperature, high humidity of the reinforcement project. In addition, FRP tendons are also more reasonable price, so in recent years NSM method study abroad are FRP reinforced concrete structures technology, a new hot spot.

reinforcing construction as an example, carbon and aramid fibers are currently used by the world’s major high-performance fibers used in reinforcing new materials. Dacheng preliminary study results show that high-strength polyethylene fiber and carbon fiber and Kevlar compared to the density of the smallest, the highest intensity, good chemical resistance, good low temperature resistance, good UV resistance and has better cost-effective. In bridges, tunnels, housing and other structures for seismic reinforcement reinforcement has very broad application prospects.

5 Conclusion

Ningbo Dacheng Company has now become the world’s first large-scale production to four high-strength polyethylene fibers and their own intellectual property rights of high-tech enterprise in 2005, Ningbo Dacheng high-strength polyethylene fiber has been fully enter the international market of 280 million achieved considerable economic and social benefits enormous. Ningbo Dacheng companies today are taking advantage of this opportunity for rapid expansion, the current output of more than 1200t / a, is expected to reach the end of 1600t / a of the scale, when the fiber output will surpass the United States, second only to the Dutch company DSM, the highest in the world’s second . Ningbo Dacheng

is mainly based on enterprises and renowned research institutes the United Nations common country to declare 863 scientific and technological development projects to UHMWPE fibers developed for a variety of enhancer-performance composite materials, in the man-ballistic protective equipment , aerospace, rockets, fighter planes, ships, wind power, high-pressure cylinders, the construction works in areas such as structural reinforcement to develop more applications. Military weapons and equipment to promote the upgrading and enhancing the combat effectiveness of the armed forces; in more areas of alternative carbon fiber, savings related to the manufacture of weapons and equipment costs; can form a new dual-use technology, put the armed forces, and effectively promoted the China’s future the formation of a major high-tech industries and so on to make new contributions. (07-11-30)