Wood-plastic composite (WPC) is a new type of material developed in recent years. It combines the advantages of two different materials organically. It can be glued, painted, and nailed like wood. , Drilling, planing, nailing, etc., can be shaped and processed like thermoplastics, and the ease of processing of wood and the versatility and flexibility of the processing methods of plastics are utilized, and the application fields are very extensive. At present, wood-plastic composite materials have been widely used in the civilian field. Products include outdoor products (such as open-air tables and chairs), building materials (such as windows and doors profiles, platforms, etc.), and municipal facilities (such as flower boxes, garbage cans, water well covers, etc. ), packaging materials, household products, daily necessities, auto parts, etc. But so far, there are not many applications of wood-plastic composites in the military field. Because of the characteristics of light weight, high rigidity, acid and alkali resistance, and waterproof and insect-proofing, wood-plastic composite materials have great potential for development in the military field. Research and development in this area at home and abroad are also actively carried out.
Military packaging
At present, the packaging of military ammunition in China is still dominated by wooden boxes, which not only consumes a large amount of wood each year, but also has great limitations in the performance of wooden boxes, such as low strength, mildew, worms, and unsealed. Therefore, it is extremely important to study new packaging materials and packaging structures that have superior performance. WPC composites have the dual characteristics of plastic and wood, and some of their performance indicators are even better than plastics and wood. Except for low elongation at break and low impact strength, all other properties have reached the performance of current military packaging materials. Indicator range. Through further research to improve the physical and mechanical properties of wood-plastic composites, and improve the overall strength of the box through a reasonable box structure design, it is entirely possible for this material to be used for certain military packaging. Domestically, some attempts have been made in this respect to propose a brand-new splicing method to ensure the sealing and overall strength of the wood-plastic packaging box from two aspects of the structural design and the selection of structural components.
Military facilities
According to reports, many of the U.S. Navy’s dock facilities were established during or after World War II and have now reached their retirement period. Since these materials are treated with insecticides, they are hazardous wastes and their disposal costs are very high. Due to environmental awareness, the use of protected wood in the marine environment has been questioned. In addition, in relatively clean harbors, they are also endangered by the increasingly serious marine woodworm. Recently, NAVFAC magazine assessed that the annual cost of the Navy's protective treatment for wood is approximately 40 to 50 million U.S. dollars.
The most viable alternative to these woods is a variety of man-made composite materials. Therefore, there is an urgent need to develop a more robust, economical and environmentally friendly alternative to wood. In order to achieve these goals, an interdisciplinary research group was formed by a number of U.S. universities, a national laboratory, and industrial research units to study the feasibility of using wood-plastic composite materials in naval berth facilities. The rapid transformation of the results of this project was promoted. At present, some wood-plastic composite profiles have been used in the United States Navy ports as decking planks and other components in naval berth facilities.
Barracks facilities
Wood-plastic composite material has good thermal insulation performance, which is very valuable to improve the construction quality and living comfort of the barracks. It can be made into floors, hanging boards, roofs, skylights, wall panels, decking, door panels, and footboards. Railings, handrails, floor boards, door/window profiles, furniture, fences, fences, platforms, road boards, platforms, etc. In addition, compared with cement steel, wood-plastic composite materials are light in weight and easy to install and use. It is particularly suitable to use them to manufacture portable guard posts.
In addition, the wood-plastic composite materials are used in military vehicle parts (which can be used as military vehicle door trims, underbody panels, exterior panel parts, door trim panels, seat backs, instrument panels, armrests, seat bases, roof panels, etc.), Gun parts (which can be used as stocks, etc.), military logistics trays, military storage ties, and other sleepers also have broad application prospects.