UV-resistant BMC material used outdoors and preparation method of material
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A UV-resistant, outdoor technology, applied in the field of BMC materials, can solve problems such as unfavorable promotion and application, and achieve the effects of good storage, good compatibility, increased surface finish and aesthetics
Inactive Publication Date: 2019-08-20
绍兴金创意塑化电器有限公司
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However, the new weather-resistant resins, weather-resistant pigments, ultraviolet light absorbers, special process addi...
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Embodiment 1-4
[0026] A UV-resistant BMC material for outdoor use, including unsaturated resin of 4 mass ratio components as shown in the following table, low shrinkage resin, aluminum hydroxide, calcium carbonate, curing agent, glass fiber, anti-UV agent, mold release agent , pigments, inhibitors.
[0027] A method for making an ultraviolet-resistant BMC material for outdoor use, comprising the steps of:
[0028] Step 1: Add resin, curing agent, anti-UV agent, release agent, and pigment into the dispersion tank, disperse and stir for 15-25 minutes, and obtain a uniformly mixed liquid.
[0029] Step 2: Add calcium carbonate and aluminum hydroxide into the kneader and stir for 10-20 minutes to obtain a uniformly stirred powder.
[0030] Step 3: Add the liquid in Step 1 to the powder in Step 2, and stir in a kneader for 10-30 minutes to obtain a uniformly mixed paste;
[0031] Step 4, evenly add glass fiber to the paste in step 3, stir for 5-15 minutes, and obtain a mixed material product. ...
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Abstract
The invention provides a UV-resistant bulk moulding compound (BMC) material used outdoors. The material comprises resin, aluminum hydroxide, calcium carbonate, a curing agent, glass fibers and an anti-UV agent, wherein the resin is unsaturated resin and low-shrinkage resin, and the anti-UV agent is a benzoic acid anti-UV agent or a benzotriazole anti-UV agent. The invention also provides a preparation method of the ultraviolet-resistant BMC material used outdoors. According to the method provided by the invention, after analysis comparison and screening tests of current anti-UV agents, the benzoic acid or benzotriazole anti-UV agent is added into a current common BMC material, so that the BMC material has good compatibility with the unsaturated resin and can be colored, and the propertiesand forming of the material are not affected; and the product has a high-efficiency light stability effect, and the characteristics of no toxicity, non-flammable performance, non-explosive performance, corrosion resistance and good storage performance.
Description
technical field [0001] The invention belongs to the technical field of BMC materials, in particular to an outdoor UV-resistant BMC material and a manufacturing method. Background technique [0002] BMC material (bulk molding compound), that is, unsaturated polyester glass fiber reinforced molding compound, is a kind of thermosetting material mainly composed of resin, filler, glass fiber, curing agent, etc. through physical mixing, which can be applied to compression, injection , transmission and other thermoforming processes, the products have the characteristics of high mechanical strength, high temperature resistance, smooth surface, flame retardant, arc resistance, etc. Its excellent mechanical and electrical properties make it widely used in automobile, construction, electrical appliances, instrumentation and other industries Applications. [0003] However, after BMC products are applied to outdoor products, many performance defects are exposed, the more important ones ...
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