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Ceiling gusset plate for subway, and preparation method thereof

A technology for ceilings and gussets, applied in the field of subway ceiling gussets and its preparation, can solve the problems of not being able to meet the flame retardant requirements of subways, not being suitable for subway environments, and poor air circulation, so as to facilitate dispersion and wetting of fillers, Ease of maintenance and cleaning, less work steps

Active Publication Date: 2014-01-22
NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the commercially available flame-retardant plastic gussets are made of halogen-containing raw materials, although they can achieve a certain flame-retardant effect, but because they contain halogens, the smoke generated by combustion is toxic, which is very harmful in a closed subway environment
[0005] (3) Aluminum gusset: Although the aluminum gusset makes up for the above two deficiencies, it is a metal material. Due to the high humidity of the subway, the air is not circulated, it is easy to rust after long-term use, and it is not suitable for the subway environment.
[0006] (4) Composite material gussets: Composite material gussets are a new type of gussets. Although they can make up for some of the shortcomings of the above-mentioned gussets, some of them also use aluminum hydroxide micropowder or halogen-containing raw materials to achieve the purpose of flame retardancy, but it is still unavoidable. The problem of toxic fumes produced by the combustion of halogen raw materials, and the filling amount of its aluminum hydroxide powder is generally less than 250 parts, which cannot meet the flame retardant requirements of the subway

Method used

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  • Ceiling gusset plate for subway, and preparation method thereof
  • Ceiling gusset plate for subway, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Weigh the components according to the formula: 70 parts of unsaturated polyester resin, 30 parts of Palapreg H2073-901, 12 parts of zinc stearate micropowder, 400 parts of Martinal ON921, 2 parts of Luperox256, 0.5 part of magnesium oxide micropowder, BYK996 20 parts Parts, 120 parts of 24.5mm glass fiber, wherein, the above-mentioned parts are parts by weight.

[0023] (2) Material preparation: Add thermosetting resin, low-shrinkage additive, wetting and dispersing agent, internal mold release agent, initiator, and inorganic mineral filler into the high-speed disperser in an orderly manner for 15 minutes according to the above formula (1). The rotating speed of the disperser is 1000 rpm. Then add the thickener and mix and disperse for 4 minutes to obtain a paste mixture. The resulting paste mixture is transported to a special SMC or BMC kneader, and the glass fibers are uniformly dispersed into the paste mixture through the SMC or BMC kneader to obtain sheet-like ...

Embodiment 2

[0031] BYK996 can effectively wet the filler and increase its filling amount in the material.

[0032] (1) Weigh the components according to the formula: 60 parts of unsaturated polyester resin, 40 parts of Palapreg H2073-901, 9 parts of zinc stearate micropowder, 300 parts of Martinal ON921, 4 parts of Luperox256, 1 part of magnesium oxide micropowder, BYK996 10 parts, 170 parts of 24.5mm glass fiber.

[0033] (2) Material preparation: Add the thermosetting resin, low-shrinkage additive, wetting and dispersing agent, internal release agent, initiator, and inorganic mineral filler into the high-speed disperser in an orderly manner for 15 minutes according to the formula (1). The machine speed is 1000 rpm. Add the thickener to the dispersant after metering, mix and disperse for 4 minutes to obtain a paste mixture. The resulting pasty mixture is transported to a special SMC or BMC kneader, and the glass fibers are uniformly dispersed into the pasty mixture through the SMC or B...

Embodiment 3

[0040] Compared with commonly used curing agents, Luperox256 can greatly shorten the molding time and improve production efficiency.

[0041] (1) Weigh the components according to the formula:

[0042] 65 parts of unsaturated polyester resin, 35 parts of Palapreg H2073-901, 10 parts of zinc stearate micropowder, 350 parts of Martinal ON921, 3 parts of Luperox256, 0.7 part of magnesium oxide micropowder, BYK99615 parts, 155 parts of 24.5mm glass fiber.

[0043] (2) Material preparation: Add thermosetting resin, low-shrinkage additive, wetting and dispersing agent, internal release agent, initiator, and inorganic mineral filler to the high-speed disperser in an orderly manner and mix and disperse for 15 minutes according to the formula. The machine speed is 1000 rpm. Add the thickener to the disperser after metering, mix and disperse for 4 minutes to obtain a paste mixture. The resulting pasty mixture is transported to a special SMC or BMC kneader, and the glass fibers are uni...

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PUM

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Abstract

The invention discloses a ceiling gusset plate for a subway, which is characterized by comprising the following components in parts by weight: 60 to 70 parts of unsaturated polyester resin, 30 to 40 parts of low shrinkage additive, 9 to 12 parts of zinc stearate micropowder, 300 to 400 parts of inorganic mineral filler, 2 to 4 parts of initiator, 0.5 to 1 parts of magnesium oxide micropowder, 10 to 20 parts of wetting and dispersing additive, and 120 to 170 parts of glass fiber with the length of 24.5mm. The invention also discloses a preparation method of the ceiling gusset plate for the subway. The ceiling gusset plate provided by the invention has the advantages of waterproof, high fire retardance, low calorific value, low fuming volume, no toxicity, stable structure, and convenience in maintenance and cleaning.

Description

technical field [0001] The invention relates to a ceiling gusset plate for subway and a preparation method thereof. Background technique [0002] Traditional ceiling gussets for subways generally use gypsum boards, plastic gussets or aluminum gussets. However, the above-mentioned materials will have the following defects and deficiencies if they are used in a humid and cool place like the subway for a long time: [0003] (1) Gypsum board: Due to the high humidity of the subway and the lack of air circulation, the gypsum ceiling is prone to mildew during use, and it is easy to peel off after being damp, or even collapse, and the service life is short; Maintenance requires overall construction, a large workload and more waste. [0004] (2) Plastic gussets: Plastic gussets are mostly processed with thermoplastic materials. The closed environment of the subway requires high fire resistance and flame retardancy while requiring low smoke density and low calorific value. Plastic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/06C08K13/04C08K5/098C08K3/22C08K7/14
Inventor 张宵华张文武俞碧波李宝仁
Owner NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR