Halogen-free flame retardant phenolic epoxy glass reinforced plastic molding material
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A phenolic epoxy and molding material technology, applied in the field of polymer materials, can solve the problems of easy combustion and insufficient safety, and achieve the effects of convenient molding, excellent self-extinguishing effect and good heat resistance performance.
Inactive Publication Date: 2013-03-27
CHANGSHU CHIKUSHI MACHINERY
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[0002] Although novolac epoxy resin has the comprehensive advantages of phenolic resin and epoxy resin, it is still easy to burn when encountering an open flame, which is not enough to reflect safety
Method used
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Embodiment 1
[0026] 50 parts of novolac bisphenol A epoxy resin;
[0027] The condensation polymer of melamine and formaldehyde is 15 parts of melamine resin;
[0028] 6 parts of hexamethylenetetramine;
[0029] 1.5 parts of zinc oxide;
[0030] 7 parts of bisphenol A tetraphenyl diphosphate;
[0031] 3 parts of melamine polyphosphate;
[0032] 1.3 parts of calcium stearate;
[0033] 46 parts of mica;
[0034] 1.5 parts of vinyltrimethoxysilane;
[0035] 28 parts of alkali-free glass fiber with a length of 3mm.
Embodiment 2
[0037] 54 parts of novolac bisphenol A epoxy resins;
[0038] The condensation polymer of melamine and formaldehyde is 10 parts of melamine resin;
[0039] 4 parts of hexamethylenetetramine;
[0040] 0.8 parts of zinc oxide;
[0041] 6 parts of bisphenol A tetraphenyl diphosphate;
[0042] 3.3 parts of melamine polyphosphate;
[0043] 1.5 parts of calcium stearate;
[0044] 44 parts of mica;
[0045] 1.1 parts of vinyltrimethoxysilane;
[0046] 25 parts of alkali-free glass fiber with a length of 3mm.
Embodiment 3
[0048] Novolac bisphenol A epoxy resin 51 parts;
[0049] The condensation polymer of melamine and formaldehyde is 12 parts of melamine resin;
[0050] 8 parts of hexamethylenetetramine;
[0051] Zinc oxide 1.0 parts;
[0052] 9 parts of bisphenol A tetraphenyl diphosphate;
[0053] 3.6 parts of melamine polyphosphate;
[0054] 1.8 parts of calcium stearate;
[0055] 45 parts of mica;
[0056] 1.2 parts of vinyltrimethoxysilane;
[0057] 26 parts of alkali-free glass fiber with a length of 3mm.
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Abstract
The invention provides a halogen-free flame retardant phenolic epoxy glass reinforced plastic molding material, belonging to the technical field of polymer materials. The molding material comprises the following raw materials in parts by weight: 50-54 parts of phenolic epoxy resins, 10-15 parts of melamine resins, 4-8 parts of curing agent, 0.8-1.5 parts of curing accelerator, 6-9 parts of phosphate ester, 3-4 parts of phosphate, 1.3-2.2 parts of release agent, 44-48 parts of mineral filler, 1.1-1.5 parts of reinforcing agent and 25-28 parts of reinforced fibers. The molding material has the beneficial effects that the molding material has the characteristics of good heat resistance, excellent self-extinguishing effect, good strength and convenience in molding; and through tests, the bending strength is 88MPa, the heat deformation temperature is 240 DEG C and the flame retardance reaches grade V-0 (UL-94-V-0 1.6mm).
Description
technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a halogen-free flame-retardant phenolic epoxy glass fiber reinforced plastic molding material. Background technique [0002] Although novolac epoxy resin has the comprehensive advantages of phenolic resin and epoxy resin, it is still easy to burn when encountering an open flame, which is not enough to reflect safety. Therefore, how to make it have flame retardant and self-extinguishing properties has puzzled the industry for a long time. To this, the applicant has made positive attempts and finally found a solution to the problem, and it has been proved to be practical through experiments after taking strict confidentiality measures. Effectively, the technical solutions to be introduced below are based on this premise. Contents of the invention [0003] The task of the present invention is to provide a halogen-free flame-retardant phenolic epoxy glass fib...
Claims
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