Magnesium-lithium alloy materials, as the lightest metal structural material in the world today, are characterized by the addition of lithium elements to magnesium metal, making it possible to achieve excellent mechanical properties, shock absorption, and noise reduction with low density, high specific stiffness, and high specific strength. High damping performance, as well as anti-radiation and anti-electromagnetic interference performance, represent the technological frontier of magnesium alloy development, and is known as the most revolutionary material in the future. Compared with aluminum alloy, the same size, the weight is only half of the aluminum alloy, but the specific strength is higher than the aluminum alloy. In addition, this new type of magnesium-lithium alloy has excellent damping performance, which is more than ten times that of aluminum alloys. It has a good shock absorption and noise reduction effect, and it has outstanding performance in shielding electromagnetic interference.
It is reported that magnesium-lithium alloy material greatly reduces the weight of satellites, significantly increases the payload, and reduces the launch cost. In September 2015, this material was used for the first time on China’s Pujiang-1 satellite and launched successfully. Its unparalleled advantages make it widely used in military and civilian fields such as aerospace, weapons and military, electronic products, petrochemicals, mechanical instruments, medical equipment, and outdoor equipment.
It is reported that the Shaanxi Province magnesium-lithium alloy engineering research center was approved by the Shaanxi Provincial Development and Reform Commission, Xi'an Sifang Ultralight Materials Co., Ltd. combined with Xi'an Jiaotong University's team of Professor Chai Donglang to undertake the construction. After years of hard work, research, and research, the center has developed three models of ultra-light magnesium-lithium alloys with independent intellectual property rights, drafted China's first national standard for magnesium-lithium alloys, and actively promoted the development of new magnesium-lithium alloys from scientific research. Large-scale production.
Auxiliary agents, also known as additives, are substances that are added to a material to improve or modify its properties. In the field of polymers, auxiliary agents are commonly used to enhance the processing, performance, and durability of polymer materials.
There are several types of auxiliary agents, each with its own unique properties and applications. The most common type is processing aids, which are added to polymer materials to improve their flow and moldability during processing. Processing aids can improve the surface finish of the final product and reduce the amount of energy required during processing.
Another type of auxiliary agent is plasticizers, which are added to polymer materials to increase their flexibility and reduce their brittleness. Plasticizers can improve the toughness and impact resistance of the final product and are commonly used in the production of flexible PVC products, such as hoses and films.
Other types of auxiliary agents include stabilizers, which are added to polymer materials to protect them from degradation caused by heat, light, or chemical exposure. Stabilizers can improve the durability and longevity of the final product and are commonly used in outdoor applications, such as building materials and automotive parts.
Colorants, fillers, and flame retardants are also common types of auxiliary agents. Colorants are added to polymer materials to give them a specific color, while fillers are added to improve the mechanical properties of the final product, such as its strength and stiffness. Flame retardants are added to polymer materials to reduce the risk of fire and are commonly used in applications where fire safety is critical, such as building materials and electronics.
The choice of auxiliary agent depends on the specific application requirements and must be carefully considered to ensure that the final product meets the desired specifications. It is important to select the appropriate auxiliary agent to achieve the desired performance, processing, and durability characteristics of the polymer material.
In summary, auxiliary agents play an important role in the processing, performance, and durability of polymer materials. There are several types of auxiliary agents, each with its own unique properties and applications, and the choice of auxiliary agent depends on the specific application requirements.
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