Special forces in epoxy resin - hydrogenated bisphenol A epoxy resin

Hydrogenated bisphenol A type Epoxy Resin is a minority variety in epoxy resin, but it is definitely a variety with growth potential. In the structure of hydrogenated BPA epoxy, the saturated six-member ring replaces the benzene ring, and its cured material can overcome the sensitivity of the double bond in the original benzene ring to ultraviolet light and the resulting fracture defects, showing good weather resistance, corona resistance, leakage mark resistance, low dielectric constant and other properties. Hydrogenated bisphenol A type epoxy resin also has the characteristics of low viscosity. Its viscosity is 1/5 to 1/4 of the general liquid bisphenol A epoxy resin. The gel time is about twice that of bisphenol A epoxy resin. Mainly used in outdoor light curing coatings, storage tanks, steel structures and other coatings, 3D printing, electrical insulation materials and concrete DAMS and other potting materials, has a very broad development prospects.

The presence of chlorine has A bad effect on the electrical insulation and anti-corrosion properties of hydrobisphenol A type epoxy resin cured. Therefore, the detection of chlorine content of epoxy resin can provide a basis for its manufacturing process and product control.

Inorganic chlorine usually only needs to strengthen the washing process, and its content can generally be very low, so as not to affect the use of performance. The inorganic chlorine index of hydrogenated bisphenol A type epoxy resin is Class II ≤20mg/kg

Easily saponifiable chlorine is caused by incomplete closed-loop reaction and residual chlorol ether in the production process of hydrogenated bisphenol A type epoxy resin. Its presence will affect the high-temperature electric properties of hydrogenated bisphenol A type epoxy resin, and is also an important index to measure the quality of hydrogenated bisphenol A type epoxy resin. Combined with the product indicators of various enterprises and the actual use requirements of downstream customers, the industry standard hydrogenated bisphenol A type epoxy resin easily saponified chlorine index is Class II ≤0.2%.

Total chlorine content is an important index of hydrogenated bisphenol A type epoxy resin, which can be divided into inorganic chlorine, easily saponified chlorine and inactive chlorine according to its existence form in the resin, and is collectively called total chlorine content. Combined with the product indicators of each enterprise and the actual use requirements of downstream customers, the total chlorine index of the industry standard hydrogenated bisphenol A type epoxy resin is Class I ≤500mg/kg.

At present, the main performance indicators on the domestic market are much the same. However, according to customer feedback, the total chlorine of most hydrogenated bisphenol A epoxides on the market is too high, which is difficult to meet its application in the field of electronics to a large extent. In this case, Jiangsu Tytel began the research and development of hydrogenated bisphenol A type epoxy resin for electronic grade, and finally produced products with lower chlorine content.

Overall, and through the introduction, digestion and absorption of foreign advanced technology in recent years, production capacity continues to expand, process technology, production equipment and product quality mature, upstream industry supporting gradually improved. It is very promising that the annual demand for hydrogenated bisphenol A type epoxy resin will increase by more than 20%.