The future of jute Composites

2022-07-23
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The future of jute composites

composite technology refers to the polymer as the matrix and the man-made fiber as the reinforcing material, such as glass fiber, aramid fiber, carbon fiber, etc. Since the 1950s, composite materials have been first favored by the aviation field, with a variety of applications

composite materials can also be produced by purchasing multiple sets of equipment at the same time. It is a magical new material. Among them, fiber reinforced materials are the most widely used and used. It is characterized by low specific gravity, high specific strength, specific stiffness and specific modulus. It is regarded as the best substitute for metal, wood and other raw materials. More and more raw material scientists around the world focus their attention on "natural" composite materials. The reinforcing fiber of this composite material mainly comes from jute. The town has more than 4600 plastic production and sales enterprises, sisal, coconut shell and pineapple, mainly to reduce the cost of raw materials

hemp is the second largest category of natural fiber after cotton. It can be divided into ramie, flax, hemp, jute, sisal, etc. the world output is about 5million tons, of which jute accounts for about 60% - 70% of the total output

fine processing of jute fiber, effectively expanding the application field of products, is an important direction for the development of green and environment-friendly new materials. In the 1980s, developed countries such as Europe, America and Japan, as well as traditional jute producing countries such as India and Bangladesh, began to research and develop jute applications in the field of high-performance and high added value products, and actively adjusted industrial policies to promote the development of jute industry, such as the 70% cotton 30% jute blended towel developed by Japanese passport tower company; German d-c company has achieved success in manufacturing automobile interior trim parts with natural jute fiber; Semi jute medical flocs made by Russian medical flocs professional factory; The government of Bangladesh has established the jute diversification Promotion Center (jdpc), which has made some achievements by using new technologies to develop better products

jute fiber and glass fiber

although the tensile strength and Young's modulus * of jute fiber must be lower than that of glass fiber, the specific modulus of jute fiber is higher than that of glass fiber, and jute fiber is much higher than that of glass fiber based on cost factors

the specific strength of jute fiber per unit cost is also close to that of glass fiber. Therefore, without special requirements for high strength, jute fiber can completely or partially replace the use of glass fiber, without the need to introduce new composite production equipment which is not the real needs of users

in the manufacturing process of composite materials, jute fiber is used as reinforcement instead of traditional glass fiber. The former has a specific gravity of 1.29 and a specific modulus of 40gpa, while the glass fiber is 1.29 and 30gpa respectively

in addition to its lower cost and recyclable advantages over glass fiber, natural jute fiber also has a significant advantage, that is, in the process of producing jute fiber, the energy consumption is lower (2% of the energy consumed by the same output of glass fiber), which makes jute fiber more attractive as a reinforcing material

jute composite is composed of many application fields, such as lampshade, suitcase, helmet and bathtub; Shell of electrical appliance; Pipes, mailboxes, roofs, grain silos, indoor partitions and ceilings, biogas containers and low-cost mobile buildings (which can effectively resist natural disasters, such as floods, tornadoes and earthquakes)

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