Industry knowledge: What kinds of glue are commonly used in circuit boards?

Due to its excellent electrical insulation and mechanical properties, silicone gel is widely used in the packaging insulation of IGBT devices. Xu Jiayu, Li Xuebao, Cui Xiang, Mao Yuan, and Zhao Zhibin, researchers from the State Key Laboratory of New Energy Power Systems (North China Electric Power University) and the Department of Electrical and Computer Engineering of Virginia Tech, published in the second issue of "Journal of Electrotechnical Society" in 2021 In the previous article, the preparation process of silicone gel was introduced in detail, the degassing curve was improved, and the problem of air bubbles at high temperature in samples prepared by traditional processes was solved.

Silicone oil is a liquid polyorganosiloxane with excellent high and low temperature resistance, chemical stability, shear resistance, viscosity-temperature characteristics and high compressibility. Vibration reduction products based on silicone oil are widely used in electrical and electronic equipment, high-rise buildings, bridges and weapon platforms. A large number of related patents have been applied abroad, but there are still few domestic researches in this area.

Silicone products are very common in life, mobile phone cases, drain racks, kitchen utensils, etc., silicone tableware has gradually entered the public life, to ask whether silicone tableware is toxic? It is certain that products that meet the relevant national standards are definitely non-toxic, unless the manufacturer uses compounds that do not meet the regulations in the production process, resulting in product safety problems, so if you want food-grade silicone tableware, you must find a regular manufacturer. The silicone tableware produced in compliance with relevant regulations has no safety problems and is not poisonous.

Food foaming is mostly related to stirring and ventilation. In addition, food contains a lot of protein raw materials, such as peptone, corn steep liquor, soybean powder, and yeast powder, which are all prone to foaming.

Graphene composites for polydimethylsiloxane PDMS-wearable sensors

Silicone oil softener application problems and solutions, know more industry knowledge.

In recent years, the upstream market of organic silicon has been in short supply, and the price fluctuates greatly, which has a great impact on the downstream industry. With the growth of production capacity, it can not only meet the urgent needs of various industries for silicone products, but also promote the silicone industry to become bigger and stronger. Silicone refers to a large class of compounds that contain carbon-silicon bonds and at least one organic group is directly connected to silicon atoms. Among them, polysiloxanes with silicon-oxygen bonds as the skeleton account for more than 90% of the total amount. , In a narrow sense, organic silicon materials mainly refer to polysiloxanes. Polysiloxane downstream products generally include silicone rubber, silicone oil, and silicone resin, of which silicone rubber can be divided into high temperature glue, room temperature glue, and liquid glue. Silicone has a wide range of end uses, such as construction engineering, textiles, electronics, transportation, petrochemicals, aerospace, new energy, medical machinery, daily chemicals, personal care, etc.

Briefly describe the application problems and solutions of silicone oil softener in the printing and dyeing industry.Take you into the world of silicone oil: There are many varieties of silicone oil emulsion finishing agents, and the quality is uneven. There are cationic, anionic, non-ionic, etc., modified amino silicone oil and linear silicone oil and so on. Generally, the following points should be paid attention to when using silicone oil for soft finishing.

Bing Dundun is actually an ordinary plush panda doll, but compared with the common pure plush mascot, it has an extra silicone shell, and the Bing Dundun with the shell is more difficult to deal with in details. It is also the main reason why the production cycle of Bingdundun is longer than that of pure plush toys. However, consumers who get Bingdundun also have a trouble, the outer shell of Bingdundun will turn yellow. The friends who have used the transparent silicone protective case for their mobile phones must have a deep understanding. After a period of use, it will turn yellow and affect the appearance.