BMC material for molding decorative plate and preparation method thereof
A decorative board and molding technology, which is applied in the field of BMC composite materials for decorative boards and its preparation, can solve the problems of inability to add stabilizers, low shrinkage agents, antioxidants, limited plasticity and stretchability of products, and low coloring rate, etc., to achieve Good non-combustibility, good non-diffusion, high color reproduction effect
Inactive Publication Date: 2015-05-13
高港区德益新型材料厂
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Problems solved by technology
Since the SMC material adopts a coating process and the processing cycle is long, it is impossible to add more stabilizers, low shrinkage agents, antioxidants, fillers, etc., so the obtained products have large shrinkage in size, poor aging resistance, and poor finish. , most of the products need to be repaired, polished, shaped and painted before they can be used
In addition, since the glass fiber cloth used in the SMC composite material is a long fiber filler, the plasticity and stretchability of its products in shape are limited, so only some flat or curved products can be made; Complicated products cannot be realized, such as relief crafts in decorative products, landscape figures, simulated stone patterns, uneven background walls and ceilings with various shapes cannot be realized with SMC materials
In addition, general SMC materials use chemical pigments, and most of these chemical pigments are organic compounds with low coloring rate, will fade and age after being exposed to sunlight and rain, and are harmful to the human body
Method used
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Embodiment 1
[0022] 1. A formula of BMC material for molded decorative panels:
[0023]
[0024] Two, a kind of preparation method of BMC material for molded decorative board:
[0025] (1) At 40°C, add calcium carbonate, aluminum hydroxide, zinc stearate, and cornstarch measured according to the above formula to the kneader and mix, rotate forward for 20 minutes and reverse for 20 minutes;
[0026] (2) Mix the unsaturated polyester resin, low-shrinkage agent, and curing agent measured according to the above formula with a high-speed mixer for 20 minutes, and control the temperature below 40°C to fully react;
[0027] (3) Add the resin solution mixed in step (2) to the kneaded powder in step (1), knead for 30 minutes, then rotate forward and reverse for 15 minutes each, and the temperature should not exceed 50°C;
[0028] (4) join the stone material toner of 6g in the mixture of step (3) and knead for 15 minutes;
[0029] (5) Get the measured chopped glass fiber and add it to the mass ...
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The invention discloses a BMC material for a molding decorative plate. The BMC material comprises the following components: unsaturated polyester resin, calcium carbonate, aluminium hydroxide, zine stearate, potato starch, a low shrinkage agent, a curing agent, chopped glass fiber and stone toner. A preparation method of the BMC material comprises the following steps: (1) calcium carbonate, aluminium hydroxide, zine stearate and potato starch are added into a kneader to be mixed; (2) unsaturated polyester resin, the low shrinkage agent and the curing agent are mixed by a high-speed mixer; (3) a resin solution from the step (2) is added into the powder from the step (1) to be kneaded; (4) the stone toner is added into the mixture from the step (3) to be mixed and kneaded; and (5) chopped glass fiber is added into the pellet material from the step (4) to be kneaded, and discharging is carried out after kneading. The prepared BMC material for the decorative plate is fire retardant, has high plasticity, is easy to process, has good dimensional stability and has bright and lasting color.
Description
technical field [0001] The invention relates to the technical field of composite materials, and more particularly relates to a BMC composite material for decorative panels and a preparation method thereof. Background technique: [0002] At present, the decoration materials on the market mainly include gypsum board, plastic board, plywood board, aluminum gusset board, tempered glass and dry-hanging stone. Due to their own defects, these materials will more or less cause some safety hazards in the process of use. For example, gypsum board is easy to absorb moisture, and after moisture absorption, it is easy to mildew and breed bacteria; It is also flammable and will produce harmful gases when burned; plywood contains toluene and chlorinated hydrocarbon solvents, these organic solvents are volatile and harmful to human health and the environment; aluminum gussets are expensive and easy to oxidize, which is not conducive to cleaning , and is not insulated, which will bring safe...
Claims
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Login to View More IPC IPC(8): C08L67/06C08K13/04C08K7/14C08K3/26C08K3/22C08K5/098
Inventor 唐荣林
Owner 高港区德益新型材料厂