"Century New Material" To Understand The Development Of Thermoplastic Composites Industry In 3 Industrial Textile Enterprises

Thermoplastic composite is a general term for strengthening various thermoplastic resins based on glass fiber, carbon fiber, aramid fiber and other materials.

Thermoplastic polymer and special fiber composite have many advantages such as simple technology, short process cycle, low cost, relatively small density and so on, making thermoplastic composites widely used in aerospace, automobile, electronics, electrical appliances, medicine, building materials and other industries. Among them, reinforced thermoplastic sheet is a very active composite material development in the world, and is regarded as one of the new materials in the 21st century.

With the rapid development of domestic infrastructure, thermoplastic composites have been developing at a fairly fast rate in the past six months, and many enterprises are increasing the development of thermoplastic composites.

However, for the domestic market, thermoplastic polymer matrix composites are still at a disadvantage in terms of mechanical properties, service temperature and aging properties.

Wang Ran, a professor at Nanjing University of Technology, said that to produce high quality fiber reinforced thermoplastic composite parts, it is necessary to study not only the shrinkage of the materials when they are molded, but also how to prevent flexure.

Recently, reporters interviewed 3 manufacturers of thermoplastic composites producing products from different fields, and found that many enterprises are optimistic about the prospect of thermoplastic composites market and put into operation. We hope that the thermoplastic composites industry can be strongly promoted by the government, and rely on the country to implement major science and technology projects to promote technology development and product promotion, and promote the development of thermoplastic composites.

Bamboo fiber composites meet many demands of electronic products

Changzhou name composite material Co., Ltd.

Product category electronic accessories

The hot plastic composite production line recently invested by Changzhou Ji Ming composite material Co., Ltd. mainly produces electronic reinforced accessories, such as computer cover, instrument housing, tape shaft, etc., according to the requirements of different customers, according to different injection molding processes.

As of March this year, the income of thermoplastic composites accounted for about 45% of the company's total sales.

According to Xu Fengyi, chief technology officer of the company, at present, there are two types of thermoplastic composites in the domestic market, namely, long fiber reinforced and short fiber reinforced composites.

The company produces long fiber composite materials, because its short fiber reinforced thermoplastic composites have better mechanical properties and temperature resistance, and can better enhance the enhancement effect of reinforcing agents.

At present, there are few studies on long fiber reinforcement in China, but from the perspective of engineering application, long fiber reinforced thermoplastic composites have a broader development prospect.

The reason why we value the thermoplastic composites is mainly because of its small density and high strength.

The density of thermoplastic composites is 1.1 to 1.6g/cm3, which is only 1/5 to 1/7 of steel and 1/2 to 1/4 lighter than that of thermal composites. It can obtain higher mechanical strength with smaller unit mass and is most suitable for producing electronic accessories.

Because the type of matrix materials of thermoplastic composites is more than that of thermosetting composites, the freedom of using such material to design high-density and refined electronic parts is relatively high.

After nearly 5 years of market operation, the company's production of thermoplastic composites has been very stable.

Next, the company will work with researchers from Jiangnan University to develop thermoplastic bamboo fiber composites that meet the various needs of electronic components.

The company will first start with the mechanical properties and electrical insulation of bamboo fiber composites, and strive to develop environment-friendly bamboo fiber composite materials, which are non-toxic and non odorant, and do not release harmful gases such as formic acid in the long-term use.

The impact resistance of thermoplastic composites has been greatly improved.

Shandong rainbow composite new material Co., Ltd.

Product category wind power blades

Shandong rainbow composite new material Co., Ltd. began to produce thermoplastic composites for wind turbine blades in 2013, and has long-term cooperation with many wind power enterprises in China.

According to Huang Youyuan, general manager of the company, compared with thermosetting composites, thermoplastic composites have a series of excellent properties such as recyclability, light weight, good impact resistance, short production cycle and so on.

If the thermoplastic composite blades are used, the blade weight of each large wind turbine can be reduced by 10%, the impact resistance will be greatly improved, the manufacturing cycle will be reduced by at least 1/3, and it can be completely recovered and reused.

Huang Youyuan said that the water resistance of carbon fiber thermoplastic composites is not comparable to that of thermosetting composites.

The addition of conductive materials in thermoplastic composites can improve the electrical conductivity, prevent static electricity and improve the efficiency of the blades.

However, the process cost of using carbon fiber thermoplastic composites to fabricate blades is high. This is the most critical problem restricting the use of thermoplastic composites for wind turbine blades. Even though the company has been tackling the market for two years, it still finds it difficult to expand the market.

The company plans to visit Japan to learn the manufacturing technology of low cost carbon fiber thermoplastic composite blades, which is jointly developed by Gaoth wind energy company of Ireland, MITSUBISHI heavy industries of Japan and Cyclics company of the United States. It hopes to expand the market share by introducing new technology.

"We very much hope that the government can help enterprises improve the level of automation and mechanization of composite materials production.

For example, the introduction of foreign advanced composite molding technology and equipment to enhance the level of automation in the design and production of composite materials, improve the level of automation and mechanization of composite production, enhance the stability and service life of product, and expand the application area of products.

Huang Youyuan said.

Improving the vibration resistance of car body with CO plastic panel

Company name: Zhejiang hop Ying vehicle composite material Co., Ltd.

Product category automotive exterior trim

Zhejiang Heying vehicle composite material Co., Ltd. is currently providing panels for Santana models of Volkswagen Group. The panel is made of CO PP thermoplastic elastomers, and other additives, which are molded by injection molding, so that the body's anti vibration capability is comparable to that of Audi A6.

In 2014, the company began to produce thermoplastic composites for automobiles. The products are mainly used for automobile bumpers, doors, body panels, seat backs, anti-collision parts, spare tire frames, automobile engine covers and other decorative parts.

In the second half of this year, the boron free, fluorine free and alkali free thermoplastic glass fiber reinforced material will also be used for automobile silencers. The total sales volume of the company is expected to increase by 20% after the products are listed.

Liu Yuning, general manager of the company, said that increasing the production of thermoplastic composites is mainly due to the light weight and environmental protection of the main direction of the development of the world's automotive material technology. Reducing vehicle self weight is one of the most effective measures to reduce vehicle emissions and improve combustion efficiency. The vehicle's self weight is reduced by 10% and fuel consumption can be reduced by 6% to 8%.

Although the market is generally optimistic about carbon fiber composite materials, but the cost is too high, it is not suitable for low-end models, and this state will not change much in the next 5 years.

Increasing the use of thermoplastic composites in automobiles is the key to reduce vehicle cost and reduce self weight and increase vehicle payload.

However, Liu Yuning also admitted that although the company's thermoplastic composites are developing fairly smoothly at present, the company still hopes that the government can vigorously develop the glass fiber products deep processing industry, take the downstream composite material pformation development and product upgrading and upgrading as the guidance, continuously enhance the scale and specialized production level of the glass fiber products, enhance the product quality and the added value level, and guide the product enterprises to actively participate in the downstream products and application research and development, satisfy the individual needs of the downstream users, implement differentiated production and operation, and avoid low price vicious competition.