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Brominated epoxy resin is a new type of epoxy resin developed in recent years, which not only has excellent electrical insulation and adhesion of general epoxy resin, but also has excellent self-flame retardancy, and is widely used in
various flame retardant electronic components.
Brominated epoxy resins are usually classified by molecular weight, low molecular weight is suitable for flame retardant ABS and HIPS, high molecular weight is suitable for flame retardant ABS/PC polymer alloy and PBT
.
Bromo-epoxy resin flame retardant ABS, with excellent thermal stability, heat aging resistance and processing performance, not easy to frost, thermal cracking or combustion is not likely to produce corrosive gases, especially excellent ultraviolet resistance, so this flame retardant ABS can meet the requirements
of manufacturing computer and printer shells.
Performance table
molecular weight | appearance | Bromine content | Softens the temperature range | Initial decomposition temperature °C |
1400 | White powder | 59 | 88-95 | 320 |
1600 | White powder | 58 | 90-95 | 323 |
2000 | White powder | 57 | 100-105 | 321 |
4000 | White powder | 56 | 110-120 | 316 |
10000 | Light yellow granules or nearly white powder | 51. | 130-135 | 328 |
15000 | Light yellow granules or nearly white powder | 53 | 135-140 | 347 |
20000 | Light yellow granules or nearly white powder | 53. | 140-145 | 356 |
25000 | Light yellow granules | 53 | 145-150 | 351 |
30000 | Light yellow granules | 53 | 150-155 | 348 |
Application Guide
1
.
Brominated epoxy resin can usually be divided into low, medium and high according to the molecular weight.
Low molecular weight is suitable for flame retardant ABS and HIPS, high molecular weight is suitable for ABS/PC polymers, PBT and nylon6,66
.
2.
Brominated epoxy resin is also divided into EP type and EC type
according to different end groups.
Compared with EC type, EP type has better light fastness but slightly lower bromine content, while the latter flame retardant ABS and HIPS have better impact strength
.
3.
The molecular weight range is 700-45000, and various resins with different molecular weights affect the physical properties, heat resistance, impact resistance, etc.
of flame-retardant plastics, so the appropriate molecular weight
can be selected according to different flame retardant requirements.
4.
1200-4000EC type is suitable for ABS and PP resin
.
5.
8000-25000EP type is suitable for PBT and PET.
6.
15000-50000EC type is suitable for nylon 6,66
.
Source: Chemical Industry Journal
Statement: This number is neutral to reprinting, sharing, statements, and opinions, the purpose is only for industry exchanges, and the copyright belongs to the original author
.
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.
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