Nowadays China’s modern industry develops rapidly, many fields need damping materials with wide temperature range, high performance and intelligence, such as the military industry, the machinery industry, the construction industry, the emerging aerospace industry and the electronics industry. Therefore, higher requirements are put forward for the performance of vibration and noise reduction of damping materials. Damping materials will continue to develop towards the direction of high performance, intelligence and refinement.
Damping material is a kind of functional material with the special structure and performance to consume energy to achieve the purpose of damping vibration and noise reduction. In the automobile industry, damping materials can reduce vibration and noise, it improves the comfort of cars. In construction industry, damping materials not only can reduce the damage caused by wind vibration but also could minimize the damage to buildings caused by natural disasters. Thus it ensure the safety of people's lives and property. In the machinery industry, damping materials can minimize the mechanical noise and vibration, improve the work efficiency, and prolong the life of equipment. In the modern aerospace, damping materials are mainly used to manufacture the shell of rocket and missile control panel, which could improve the accuracy of the information sent back. So it shows that the research and development of damping materials can not only produce great social and economic benefits, but also have broad application prospects.
In a variety of damping materials, polymer damping material is a kind of material with most research and widest use, because it is easy to process and has high internal friction. Among these, organic hybrid damping material is a new kind of damping material emerging recent years, it drew high attention of researchers form all over the world because of its good comprehensive performance.
The least research shows that it can greatly improve damping resistance by adding small organic molecule - hindered phenolic antioxidant AO80. Because of the mutual forces of hydrogen bonds between molecules. A hybrid material that mixes polymers with small organic molecules, not only has the ability of damping, shape memory, self - viscosity, but also has the performance of self-repair when the performance reduction or the the abilities are damaged. What’s more, the hydrogen bond can be cut off by heating and realize the recovery of each component.
NBR blended vulcanized rubber was prepared by adding AO80, its dynamic mechanical properties were tested by DMTA. Above figure shows that damping dissipated energy（TA）increases as the content of AO80 increases. That means vulcanized rubber’s damping resistance increases as the content of AO80 increases.
The Specifications of OMNISTAB AO80
Of course as a kind of high molecular weight hindered phenolic antioxidant, OMNISTAB AO80 also has the performance of low volatile and excellent gas fading resistance. Synergistic effects will be produced when it is combined with phosphite antioxidant and sulfur antioxidants, which has better thermal aging resistance. OMNISTAB AO80 is suitable for most plastics, polyolefin and various elastomers, especially for PA,PUR,PE,POM,PP.
More specific scheme about additive modification of polymer materials (such as plastics, rubber, coatings, adhesives and other polymer materials), please consult the relevant staff of Deltachem, or visit our official website www.deltachem.net for enquiries. Deltachem(Qingdao) Co.,Ltd. looking forward to your inquiry!
