HC Plastics News: According to foreign media reports, JinwenZhang, a professor at the School of Mechanical and Materials Engineering at Washington State University (WSU), and his team first developed a recycling method for carbon fiber plastics, using weak acid at low temperatures. Carbon fiber composites are chemically decomposed for later recycling. With the development of lightweight vehicles, the use of carbon fiber composites (also referred to as "carbon fiber reinforced plastics", which are both lightweight, safe, comfortable and reliable, is on the rise. However, this is on the rise. The material is not without flaws. The material is often difficult to decompose or recycle, and people gradually pay attention to the recycling of the material. This material is different from thermoplastics (thermoplastics) and cannot be easily cured, decomposed and reduced to the original raw materials. The common treatment methods in the industry have many drawbacks In order to achieve recycling of carbon fiber composites, in most cases, researchers will use mechanical equipment to grind the material, or use ultra-high temperature to decompose it, or reduce it to harsh chemical conditions. Expensive carbon fiber material. However, after the above process, the carbon fiber is usually damaged, and the remaining chemical substances are often corrosive and cause harm to the human body. Worse, it is difficult to properly dispose of waste. In addition, if the above treatment method is employed, the resin-based material contained in the material is destroyed, and various chemical substances are generated, which is difficult to remove and is difficult to handle. Low temperature operation of various weak acid liquid ethanol Professor JinwenZhang and his team solved the problem of recycling of carbon fiber composite materials. They developed and adopted a new chemical recovery method: they used a variety of weak acids as catalysts and added them to liquid ethanol. Chemical reactions occur at low temperatures, causing such thermosets to be decomposed. It is worth mentioning that they used a combination of chemicals in the test. In order to increase the rate of decomposition of the cured material, the researchers increased the temperature of the material to allow the catalyst-containing liquid to penetrate into the composite material, thereby achieving chemical decomposition of the carbon fiber composite material. Zhang uses an ethanol liquid to expand the volume of the resin, and then uses zinc chloride to decompose carbon-nitrogen bonds. This step is crucial. “The key to this recycling method is to develop a highly efficient catalytic system that penetrates into the cured resin and causes the chemical bonds of the cured resin to be decomposed,†he said. The research team also developed an efficient method to properly preserve carbon fiber and resin for later use. Currently, the team has patented its technology and is committed to promoting the commercial operation of the technology. Editor in charge: Wang Ning 12 Face Mask Machine,Pm2.5 Mask Machine,Filter Mask Machine,Filter Cotton Making Machine Dongguan Huitong Automatic Machinery Technology Co., Ltd , https://www.medicalmaskmachines.com
New method for carbon fiber plastics is expected to be recycled