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As DOPO can react with various groups such as epoxy, double bond, carbonyl, halogen and amino group to prepare DOPO epoxy resin as a starting material, which is highly effective in flame retardancy and less likely to produce toxic gases, and is regarded as one of the most probable alternatives to halogen-containing flame retardants in the future.
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There are mainly three types of DOPO modified phenolic epoxy resins ,including DOPO-HQ modified and DOPO-NQ modified and DOPO modified epoxy resin, with excellent flame retardancy, heat resistance, low toxicity and low water absorption and expansion coefficient. DOPO modified phenolic epoxy resins are halogen-free flame retardant epoxy resins, and are mainly used in the fields of halogen-free flame retardant printed circuit substrates, electronic copper-clad laminates and electrical laminates.
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| Grade No. | EEW (g/eq) |
Viscosity (SP/°C) |
Hy-Cl (ppm) |
| YLDP-320 | 300-340 | 70-85 | 500 |
| YLDP-2500 | 475-525 | 90-110 | 1000 |
| YLDP-2375 | 350-440 | 85-95 | 1000 |
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Halogen-free flame retardant printed circuit substrates
Electronic copper-clad laminates
Electrical laminates
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Store in well-ventilated area. Keep away from flames and direct sunlight. Close the cap tightly immediately after use.
All safety information is provided in the Material Safety Data Sheet.
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At least 12 months from the date of manufacture in the original packing in ambient temperatures.
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Drum package.
