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Scaffold resistant to aging and not prone to embrittlement and preparation method thereof

A scaffolding, aging-resistant technology, applied in the field of scaffolding, can solve the problems of weak, easy-to-aging, brittle and cracking weighing capacity, etc.

Inactive Publication Date: 2021-06-25
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

[0003] However, if the scaffolding in the prior art is made of plastic materials, it has the disadvantages of being prone to aging, brittleness and weak weighing capacity after long-term use.

Method used

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  • Scaffold resistant to aging and not prone to embrittlement and preparation method thereof
  • Scaffold resistant to aging and not prone to embrittlement and preparation method thereof
  • Scaffold resistant to aging and not prone to embrittlement and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] This embodiment provides a scaffold that is resistant to aging and is not brittle. The raw materials for the preparation of the scaffold include the following components in parts by weight:

[0045]

[0046] Wherein, the preparation raw material of polyurethane modified epoxy resin, by weight, comprises the following components:

[0047]

[0048]

[0049] The preparation method of the polyurethane modified epoxy resin that the present embodiment adopts may further comprise the steps:

[0050] A1: Stir 60 parts of 2,4-toluene diisocyanate, 6 parts of toluene and 4 parts of dibutyltin dilaurate as a catalyst at room temperature at 150 rpm for 5 minutes, and raise the temperature to 45 at a heating rate of 5 °C / min. ℃, heat preservation reaction, and gradually generate 2,4-toluene diisocyanate prepolymer;

[0051] A2: Use the di-n-butylamine method to measure the NCO content in the mixed solution obtained in the A step. When the mixed solution obtained in the A1 ...

Embodiment 2

[0069] This embodiment provides a scaffold that is resistant to aging and is not brittle. The raw materials for the preparation of the scaffold include the following components in parts by weight:

[0070]

[0071]

[0072] The raw materials for the preparation of the polyurethane-modified epoxy resin provided in this embodiment include the following components in parts by weight:

[0073]

[0074] The preparation method of polyurethane modified epoxy resin comprises the following steps:

[0075] A1: Stir 45 parts of 2,4-toluene diisocyanate, 5 parts of toluene and 2.5 parts of dibutyltin dilaurate as a catalyst at room temperature at 100 rpm for 3 minutes, and raise the temperature to 40 at a heating rate of 5 °C / min. ℃, heat preservation reaction, and gradually generate 2,4-toluene diisocyanate prepolymer;

[0076] A2: Use the di-n-butylamine method to measure the NCO content in the mixed solution obtained in the A step. When the mixed solution obtained in the A1 s...

Embodiment 3

[0094] A scaffold that is resistant to aging and not brittle is provided in this embodiment. The raw materials for the preparation of the scaffold include the following components in parts by weight:

[0095]

[0096]

[0097]The preparation raw material of the polyurethane modified epoxy resin that present embodiment adopts, by weight, comprises following component:

[0098]

[0099] The preparation method of the polyurethane modified epoxy resin that the present embodiment adopts may further comprise the steps:

[0100] A1: Stir 52.5 parts of 2,4-toluene diisocyanate, 5.5 parts of toluene and 3.25 parts of dibutyltin dilaurate as a catalyst at room temperature at 125 rpm for 4 minutes, and raise the temperature to 43 at a heating rate of 5 °C / min. ℃, heat preservation reaction, and gradually generate 2,4-toluene diisocyanate prepolymer;

[0101] A2: Use the di-n-butylamine method to measure the NCO content in the mixed solution obtained in the A step. When the mixe...

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Abstract

The invention provides a scaffold resistant to aging and not prone to embrittlement and a preparation method thereof. The scaffold is prepared from raw materials: nano calcium sulfate whiskers, mica powder, glass fiber filaments, polyacrylonitrile fibers, polyurethane modified epoxy resin, dimethylacetamide, 2,4-dihydroxybenzophenone, alkylphenol polyoxyethylene ether phosphate, a pigment, a dye dispersing agent and diaminodiphenyl methane serving as a curing agent. According to the scaffold, the polyurethane prepolymer with the isocyanurate six-membered ring is prepared by adding the 2,4-toluene diisocynate, then the polyurethane prepolymer is used for preparing modified epoxy resin, and the formed novel high-toughness grouting material modified epoxy resin with the interpenetrating network structure has high elongation at break; 2,4-dihydroxybenzophenone with an ultraviolet absorption function is added, so that the ultraviolet aging resistance of the material is enhanced; and the flexibility and bending strength of the material are further improved due to the addition of the self-prepared nano calcium sulfate whisker.

Description

technical field [0001] The invention belongs to the technical field of scaffolding, and in particular relates to a scaffolding resistant to aging and not brittle, and a preparation method thereof. Background technique [0002] With the rapid economic growth and the deepening of urbanization in my country, the construction scale of various construction projects and infrastructure projects has continued to increase, and the form of building structures has become more complex, providing huge business opportunities for my country's formwork and scaffolding industry. At the same time, building construction puts forward higher requirements for the adaptability, safety and construction precision of scaffolding structures. Scaffolding refers to a support structure or construction platform that is temporarily erected for engineering construction and is composed of vertical poles, horizontal poles, and inclined poles. Its main function is to bear the vertical load transmitted from the...

Claims

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Application Information

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IPC IPC(8): C08L71/02C08L75/04C08L63/00C08L33/20C08K13/04C08K7/08C08K3/34C08K7/14C08K5/132E04G5/00
CPCC08K2201/011C08L71/02C08L2201/02C08L2201/08C08L2205/035C08L2205/16E04G5/00C08L75/04C08L63/00C08L33/20C08K13/04C08K7/08C08K3/34C08K7/14C08K5/132
Inventor 黄帅江林峰俊朱如坤李革伟陈昭君
Owner 湖南万力工程科技有限公司