Epoxy resin toughness curing agent

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Qishi QS-18* * Series Toughness Curing Agent Kieshi Toughness Curing Agent is a specially modified liquid curing agent that forms a casting batch with epoxy resin. It can be used in the vacuum casting process to produce dry-type transformers, transformers, insulators and other power equipment and insulating sleeves, as well as insulation products such as insulating profiles. The uniqueness of Kish's toughness curing agent lies in its polymer alloy technology. Under appropriate formulation and curing process, micron-sized elastic rubber particles will be generated in the epoxy resin cured product and evenly distributed in the continuous phase of the cured product, forming an epoxy resin alloy with an "island structure" (also known as interpenetrating polymer network - IPN), thus greatly improving the fracture toughness GIC (the ability to resist crack expansion) of the cured product. In epoxy resin electrical insulation castables, polymer alloy technology perfectly combines the original excellent mechanical properties, electrical properties and process properties of epoxy resin with greatly improved fracture toughness, which helps to improve the quality of power transmission and transformation equipment, such as: Overcome cracking of cast products and improve finished product qualification rate ； Effectively reduce partial discharge ； Improve thermal shock resistance ； Improve dynamic and thermal stability, etc. Grade type Appearance viscosity (mPa.s 25℃) Epoxy resin 100pbw Density (g/ml 25℃) Mixing temperature (℃) Process characteristics QS-1850 acid anhydride yellow liquid 200-35080-1101.10-1.2080 General type QS-1851 acid anhydride yellow liquid 200-3501001.10 -1.20 Normal temperature fiberglass dipping and winding QS-1852 acid anhydride yellow liquid 200-35080-1101.10-1.2080 Single mixing tank vacuum casting QS-1860 acid anhydride yellow liquid 200-30090-1 101.10-1.20 Normal temperature ~ 60 APG special QS-1870 acid anhydride yellow liquid 200-35080-1101.10-1.20 Normal temperature ~ 60 FRP pipe special QS-1650 imidazole brown yellow liquid 400-50010-150.95-1.05 Room temperature fiberglass dipped winding resistant to moisture absorption Storage period: room temperature sealing for half a year Please call us for details on the process. Qingda Qishi Company can provide reference processes, and can also design formulas according to customer needs. Note: 1. When the ambient temperature is lower than minus 15°C, the curing agent may crystallize and whiten. It can be used after being heated and melted at 70-80°C. The operating process and the performance of the cured product will not be affected. 2. QS-1650 curing: The wrapped parts can be directly put into the furnace for solidification. ； You can also preliminarily solidify the wound product at room temperature, and then put it into the furnace for solidification. 3. Kish toughness curing agent contains toughening agent and accelerator components. Manufacturers only need to purchase epoxy resin and fillers. If you need to increase the curing speed, you can add an accelerator as appropriate. The amount added is determined by the use time (gel time) required by the manufacturer. Due to the small amount of accelerator, it is recommended to pre-mix it into QS-1850 and filler pre-mixing tanks to ensure that the accelerator is evenly mixed. 4. There are often differences in epoxy resins produced by different manufacturers. The gel time and process conditions mentioned above are for reference only. For specific use, each manufacturer should determine the pouring and curing process through experiments based on the selected raw materials and the pouring equipment used. 5. When the epoxy resin cured by Kies toughness curing agent is mixed with no pigment, the color of the cured product will be milky white (due to the formation of an "island structure"). If the manufacturer needs to add pigments, please conduct experiments in advance to avoid color deviation of the cured product. 6. When application manufacturers use Kishi curing agent, they should determine the process conditions according to their own specific situations and usage requirements. Beijing Qingda Kishi New Material Technology Co., Ltd. is willing to provide technical support. QS-1980 (for APG outdoor use only) QS-1980, an outdoor epoxy resin castable, is formulated with alicyclic epoxy resin and methylhexahydrophthalic anhydride as basic raw materials through pre-reaction. It is suitable for the automatic pressure gel process (APG) and is used to manufacture high-voltage switches, transformers, insulation parts and other power products used in outdoor environments. QS-1980 outdoor epoxy resin castable formula uses polymer alloy technology. Under an appropriate curing process, micron-sized elastic rubber particles are generated in the cured epoxy resin and are evenly distributed in the continuous phase of the cured product, forming an epoxy resin alloy with an "island structure" (also known as interpenetrating polymer network - IPN), thus greatly improving the fracture toughness GIC (the ability to resist crack expansion) of the cured product. In epoxy resin electrical insulation castables, polymer alloy technology perfectly combines the original excellent mechanical properties, electrical properties and process properties of epoxy resin with greatly improved fracture toughness, helping to improve the quality of power equipment, such as: Overcome cracking of cast products and improve finished product qualification rate ； Effectively reduce partial discharge ； Improve thermal shock resistance ； Improve dynamic and thermal stability, etc. 1. Basic properties of QS-1980 outdoor epoxy resin castable QS-1980A