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High-strength environment-friendly scaffold pedal and preparation method thereof

A scaffolding and high-strength technology, which is applied in the field of building board production, can solve problems such as flammability, unfavorable use, and general load-bearing performance, and achieve the effects of improving thermal stability and weather resistance, enhancing interface bonding strength, and low surface free energy

Pending Publication Date: 2021-05-11
湖南万力工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pedals made of metal materials such as steel plates, steel grids, and aluminum plates have high strength, good load-bearing capacity, and long service life, but their unit weight increases, resulting in increased labor intensity for workers' transportation and maintenance, and high production and use costs. , and it is easy to rust when used outdoors for a long time, which eventually leads to low cost performance
Materials such as moso bamboo board or bamboo plywood have average strength, poor weather resistance, non-wear resistance, easy combustion, potential safety hazards, and short service life. Although the manufacturing cost is low, the use cost is relatively high, so it is not suitable for modern building materials development needs
[0004] Chinese invention patent CN201310089606.2 discloses a scaffold pedal material and its preparation method. The pedal material is based on polyolefin and added with flame retardant and EPDM rubber, so that the material is not easy to burn and has excellent anti-flammability. Impact performance, but the mechanical strength of the material is average, the load-bearing performance is average, resulting in a short service life, and the wear resistance of the material is poor
Chinese invention patent CN201510904914.5 discloses a carbon fiber composite material for scaffolding. The material is composed of polyacrylonitrile-based carbon fiber, alkali-free glass fiber, epoxy resin and filler. High strength, its comprehensive cost is lower compared with metal materials, but compared with bamboo plywood and thermoplastic composite materials, its cost is higher, and it is brittle. If it is suddenly dropped or hit by a heavy object, it is easy to Fracture is not conducive to the use in the field of building materials, affecting service life and safety

Method used

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  • High-strength environment-friendly scaffold pedal and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] A high-strength environment-friendly scaffolding pedal, the pedal material is composed of the following raw materials in parts by weight: 30 parts of polyvinyl chloride, 40 parts of modified plant fiber, 10 parts of polyamide resin, 20 parts of butadiene-styrene copolymer emulsion , 5 parts of metakaolin, 10 parts of silica fume, 5 parts of hexamethylphosphoric triamide, 1 part of phenyl o-hydroxybenzoate, 4 parts of heat stabilizer and 1 part of lubricant.

[0032] According to the preparation method of the scaffolding pedal that above-mentioned component is formed, specifically comprise the following steps:

[0033] (1) Preparation of PVC-bs-PA blend: Add polyvinyl chloride to methyl ethyl ketone and place it in a reaction kettle, then add butadiene-styrene copolymer emulsion and mix evenly, heat up to 50-60°C Stir for 1 hour, then add polyamide resin, raise the temperature to 70-90°C, and stir for 2 hours to obtain a PVC-bs-PA blend. Wherein, the ratio of polyvinyl ...

Embodiment 2

[0041] A high-strength environment-friendly scaffolding pedal, the pedal material is composed of the following raw materials in parts by weight: 50 parts of polyvinyl chloride, 20 parts of modified plant fibers, 15 parts of polyamide resin, 15 parts of butadiene-styrene copolymer emulsion, 10 parts metakaolin, 5 parts silica fume, 2 parts hexamethylphosphoric triamide, 3 parts phenyl o-hydroxybenzoate, 2 parts heat stabilizer and 3 parts lubricant. The preparation method of the pedal material composed of this component is the same as in Example 1, specifically refer to Example 1, the difference is that the ratio of polyvinyl chloride to butanone in Example 2 is 8 g / mL.

[0042] The preparation method of the above-mentioned modified plant fiber is the same as that in Example 1, except that the mass ratio of plant fiber to diacetone alcohol solution is 1:1.8, and the mass ratio of plant fiber to silane coupling agent is 1:0.08.

[0043] The above heat stabilizer components and p...

Embodiment 3

[0045] A high-strength environment-friendly scaffolding pedal, the pedal material is composed of the following raw materials in parts by weight: 40 parts of polyvinyl chloride, 30 parts of modified plant fibers, 12 parts of polyamide resin, 18 parts of butadiene-styrene copolymer emulsion, 8 parts metakaolin, 6 parts silica fume, 4 parts hexamethylphosphoric triamide, 2 parts phenyl o-hydroxybenzoate, 4 parts heat stabilizer and 2 parts lubricant. The preparation method of the pedal material composed of this component is the same as in Example 1, specifically refer to Example 1, the difference is that the ratio of polyvinyl chloride to butanone in Example 2 is 5 g / mL.

[0046] The preparation method of the above-mentioned modified plant fiber is the same as that in Example 1, except that the mass ratio of plant fiber to diacetone alcohol solution is 1:2, and the mass ratio of plant fiber to silane coupling agent is 1:0.06.

[0047] The above heat stabilizer components and prep...

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Abstract

The invention discloses a high-strength environment-friendly scaffold pedal and a preparation method thereof, and relates to the technical field of building board production. The high-strength environment-friendly scaffold pedal disclosed by the invention is prepared from polyvinyl chloride, modified plant fibers, polyamide resin, butadiene-styrene copolymer emulsion, metakaolin, silica fume, hexamethylphosphoramide, an ultraviolet light absorber, a heat stabilizer and a lubricant through the steps of PVC-bs-PA blend preparation, blending, granulation and the like. The modified plant fibers are prepared by carrying out surface modification on plant fibers under the action of diacetone alcohol and a silane coupling agent. According to the high-strength environment-friendly scaffold pedal, the raw materials are easy to obtain, the preparation process is simple and easy to operate, the cost is low, the high-strength environment-friendly scaffold pedal has excellent mechanical strength, impact resistance, flame retardance, wear resistance, corrosion resistance and weather resistance, and the service life of the scaffold pedal is prolonged.

Description

technical field [0001] The invention belongs to the technical field of building plate production, and in particular relates to a high-strength environment-friendly scaffolding pedal and a preparation method thereof. Background technique [0002] Scaffolding is a construction support on a building construction site, and it is also a construction equipment often used in decoration engineering and maintenance engineering. It is mainly used to provide pedestrian passages, a small amount of stacked materials and safety protection. Scaffolding can be divided into wooden scaffolding, bamboo scaffolding and steel pipe scaffolding according to different materials, and wooden scaffolding and bamboo scaffolding are generally used in construction sites, decoration sites and maintenance sites of lower buildings due to their limited load-bearing capacity. With the acceleration of the country's urbanization, a large number of high-rise and super high-rise buildings have emerged. Existing s...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L27/06C08L77/00C08L47/00C08K13/02C08K3/34C08K5/5399C08K5/134
CPCC08L97/02C08L27/06C08L2205/035C08L2201/02
Inventor 黄帅江李革伟陈昭君林峰俊
Owner 湖南万力工程科技有限公司
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