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Epoxy resin composition with excellent flexibility and N-P synergistic high anti-flaming property and preparation method thereof
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A technology of epoxy resin and synergistic flame retardant, which is applied in the field of electronic packaging materials to achieve the effects of high flame retardant properties, easy crystallization solubility, and excellent resistance to cold and heat shocks
Active Publication Date: 2018-09-04
咸阳新伟华绝缘材料有限公司
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[0008] Based on the characteristics and application requirements of epoxy resin and based on the consideration of environmental protection and safety, it is found that flame retardancy and toughening are unavoidable problems for epoxy resin and even other polymer materials, and the organic integration of the two topics is more challenging
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Embodiment 1
[0045] A preparation method with excellent flexibility and N-P synergistic high flame-retardant epoxy resin composition is as follows:
[0046] Premix epoxy resin, self-made multi-branched N-P synergistic flame retardant flexible curing agent (A), other curing agents, curing accelerators and inorganic fillers according to the ratio of parts by mass, and the premixing time is 3 to 10 minutes , speed 600-1200r / min; melt extrusion mixing, extruder temperature 80-160°C, extruder speed 800-2400r / min, tablet cooling and crushing, crushing and sieving through ACM mill, to obtain the epoxy resin composition.
[0047] Wherein, the synthesis method of self-made multi-branched N-P synergistic flame retardant flexible curing agent (A):
[0048] (1) After the four-neck flask, stirrer, distillation column, condenser tube and temperature-controlled heating mantle are finished, add 80g of neopentyl glycol, raise the temperature to 120°C, heat and stir to melt; add 50.95g of N,N-bis(2- Hydro...
Embodiment 2
[0054] A preparation method with excellent flexibility and N-P synergistic high flame-retardant epoxy resin composition is as follows:
[0055] Pre-mix epoxy resin, self-made multi-branched N-P synergistic flame-retardant flexible curing agent (B), other curing agents, curing accelerators and inorganic fillers according to the ratio of parts by mass, and the pre-mixing time is 3 to 10 minutes , speed 600-1200r / min; melt extrusion mixing, extruder temperature 80-160°C, extruder speed 800-2400r / min, tablet cooling and crushing, crushing and sieving through ACM mill, to obtain the epoxy resin composition.
[0056] Wherein, the synthesis method of self-made multi-branched N-P synergistic flame retardant flexible curing agent (B):
[0057] (1) After the four-neck flask, agitator, distillation column, condenser tube and temperature-controlled heating mantle are finished, add 75g of neopentyl glycol, raise the temperature to 120°C, heat and stir to melt; add 71.65g of N,N-bis(2- Hy...
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Abstract
The invention relates to an epoxy resin composition with the excellent flexibility and a N-P synergistic high anti-flaming property and a preparation method thereof. The composition is powdery, and prepared from the components, in parts by mass: 22-42 parts of epoxy resin, 8-28 parts of self-made multi-branched N-P synergistic anti-flaming and flexible curing agent, 0-6 parts of other curing agents, 0.02-0.6 part of curing accelerator, 10-28 parts of anti-flaming synergist and 22-40 parts of inorganic filler. The epoxy resin composition related by the invention adopts two reaction materials including nitrogen and phosphorus to conduct synergistic flame retardance, and accordingly an electronic packaging material is endowed with the excellent anti-flaming property and the anti-flaming durability. Meanwhile, the epoxy resin composition has the multi-branched flexible chain segment, the electronic packaging material not only has the good machinability and the manufacturability, but also has the excellent cold and hot shock resistance, chemical resistance, physical mechanical property and electrical property.
Description
technical field [0001] The invention belongs to the field of electronic packaging materials, and relates to an epoxy resin composition, in particular to an epoxy resin composition with excellent flexibility and N-P synergistic effect and a high flame-retardant epoxy resin composition and a preparation method thereof. Background technique [0002] Epoxy resin refers to a polymer containing two or more epoxy groups, with aliphatic, alicyclic or aromatic organic compounds as the backbone and formed by the reaction of epoxy groups; epoxy groups can be located in the molecular chain The end, middle or ring structure of the segment; it is one of the most widely used matrix resins in polymer matrix composites. Due to the special molecular structure of epoxy resin, epoxy resin has excellent adhesion, heat resistance, chemical resistance and excellent electrical insulation properties, and is easy to process, low shrinkage, small linear expansion coefficient and low cost. Advantages ...
Claims
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