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Transparent PMMA composite sound barrier board and preparation method thereof

A barrier board, transparent technology, applied in the direction of noise absorption device, construction, coating, etc., can solve the problems of increasing the risk of accidents, not enough to improve the anti-corrosion properties of PMMA, affecting the transparency and appearance, etc.

Active Publication Date: 2011-08-10
HAIYAN HUASHUAITE PLASTIC ELECTRICAL APPLIANCES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of PMMA / nano-scale silicon-based oxide composites by in-situ polymerization can improve its impact properties and Vicat heat distortion temperature, but only a small amount of nano-silica is not enough to improve the corrosion resistance of PMMA Etc performance
[0010] In addition, PMMA has a high surface energy and is prone to static electricity, thereby absorbing dust, affecting transparency and appearance, especially at corners, making it difficult for drivers to see the road conditions in time and increasing the risk of accidents

Method used

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  • Transparent PMMA composite sound barrier board and preparation method thereof
  • Transparent PMMA composite sound barrier board and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0066] Get 2 parts by weight of nano-silica (BT386, produced by Shouguang Baote Chemical Co., Ltd., whose BET specific surface area is greater than or equal to 260m2) through silane coupling agent modification. 2 / g), added to the reaction kettle containing 100 parts by weight of methyl methacrylate monomer, stirred at high speed (1000 turns (rotor) / min) for 0.5h to mix and disperse evenly, then added 0.4 parts by weight of azobisiso Nitrile, 0.8 parts by weight of stearic acid, 4 parts by weight of dibutyl phthalate, 3 parts by weight of glycidyl methacrylate, warming up to 75 ° C, prepolymerization reaction 60min under high-speed stirring, until becoming a viscous slurry ( The viscosity is about 1.0Pa·s). Cool to 30°C, vacuum defoam the slurry, and pour it into the mold. After sealing, put the mold into a water bath, raise the temperature to 45°C, and make it polymerize for 24 hours. The mold was transferred to a drying room, and the temperature was raised to 110°C for 1.6...

Embodiment 2

[0071] Take by weighing 1.6 parts by weight of surface organically modified nano silicon dioxide (DNS-3, produced by Nanomaterials Engineering Technology Research Center of Henan Province, whose BET specific surface area is 200 ± 25m 2 / g), join in the reactor containing 100 parts by weight of methyl methacrylate monomer, stir at high speed for 0.5h to make it mix and disperse evenly, then add 0.5 parts by weight of benzoyl peroxide, 0.8 parts by weight of pentaerythritol stearic acid Esters, 2.5 parts by weight of dioctyl phthalate, 2.5 parts by weight of glycidyl methacrylate, heated up to 80°C, and pre-polymerized for 50 minutes under high-speed (1000rotor / min) stirring until it became a viscous slurry (viscosity of about 1.0 Pa·s). Cool to 35°C, vacuum defoam the slurry, and pour it into a mold with iron wires fixed at a distance of 0.2m. After sealing, put the mold into a water bath, raise the temperature to 50°C, and conduct a polymerization reaction for 20 hours. Tran...

Embodiment 3

[0076] Weigh 1.2 parts by weight of nano-silica (BT386, produced by Shouguang Baote Chemical Co., Ltd., whose BET specific surface area is greater than or equal to 260m 2 / g), join in the reactor containing 100 parts by weight of methyl methacrylate monomer, stir at high speed for 0.5h to make it mix and disperse evenly, then add 0.25 parts by weight of dilauroyl peroxide, 0.75 parts by weight of stearic acid, 5 parts by weight of tricresyl phosphate, 2 parts by weight of glycidyl methacrylate, heat up to 85°C, and pre-polymerize for 40 minutes under high-speed (1000rotor / min) stirring until it becomes a viscous slurry (viscosity is about 1.0Pa·s) . After cooling to 30°C, the slurry was subjected to vacuum defoaming treatment, and injected into a mold fixed with polyester fiber bundles at a distance of 0.1 m. After sealing, put the mold into a water bath, raise the temperature to 45°C, and conduct a polymerization reaction for 30 hours. Transfer the mold to a drying room, ra...

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Abstract

The invention discloses a transparent PMMA composite sound barrier board, comprising a PMMA sound barrier substrate and an ultraviolet curable coating coated on the surface of the substrate, wherein the PMMA sound barrier substrate comprises the following raw materials in parts by weight: 100 parts of methyl methacrylate, 0.5-3 parts of glycidyl methacrylate, 0.5-2 parts of modified silica, 0.05-0.5 part of initiator, 0.5-1 part of release agent and 1-10 parts of plasticizers; and the ultraviolet curable coating comprises the following raw materials in parts by weight: 50-80 parts of polyurethane acrylate oligomers, 12-25 parts of acrylate reactive diluents, 1-8 parts of fluorocarbon resins, 2-5 parts of ultraviolet initiators, 0.5-2 parts of modified silica, 0.5-3 parts of antistatic agents and 0.10-0.1 part of antifoaming agent. The invention also discloses a preparation method of the transparent PMMA composite sound barrier board. The PMMA sound barrier board has the characteristics of excellent wear resistance, impact resistance, corrosion resistance and the like and has good transparency and long service life.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a transparent PMMA composite sound-insulating barrier board and a preparation method thereof. Background technique [0002] In recent years, the construction of infrastructure such as domestic rail transit and expressways has been significantly accelerated. As an important means of preventing and controlling road traffic noise, the use of sound barriers is increasing day by day. Sound insulation barriers are mainly used on one or both sides of railways, highways, and viaducts to reduce the impact of noise on residents, schools and other concentrated areas. [0003] Among the existing sound insulation barriers, polymethyl methacrylate (PMMA) sound insulation barrier board has excellent sound insulation effect, and has many advantages that other materials do not have, such as extremely high transparency (light transmittance can reach 92.2%); Installation; available in transparent ...

Claims

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Application Information

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IPC IPC(8): E01F8/00C09D133/12
Inventor 申屠宝卿殷根华夏雷王月琴翁志学
Owner HAIYAN HUASHUAITE PLASTIC ELECTRICAL APPLIANCES CO LTD
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