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Processing method for preparing formaldehyde-removing sun-shading material by graft polymerization method

A technology of graft polymerization and processing method, which is applied in the processing field of preparation of formaldehyde-removing sunshade materials by graft polymerization, achieving the effects of low energy consumption, high bonding fastness, and long-lasting finishing effect

Pending Publication Date: 2022-04-08
浙江德易遮阳科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The photocatalytic oxidation method is that the photocatalyst is irradiated by a certain wavelength of light, and the electrons are excited by the energy, so that the formaldehyde is oxidized to form water and carbon dioxide. In this type of catalyst, nano-TiO 2 , MnO 2 There are many applications, but the disadvantage is that it needs to be stimulated by light source to produce a certain formaldehyde digestion effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032](1) Polyester surface pretreatment: Pretreatment of polyester dyed fabric with caustic soda, and washing with deionized water after treatment; treatment process prescription and conditions: caustic soda 0.5 g / L, lauryl dimethyl benzyl ammonium chloride 0.1g / L, temperature 70°C, treatment time 0.5 hours;

[0033] (2) Polyester vinylation: The polyester dyed cloth treated in step (1) is treated with vinyl-containing alkoxysilane, and washed with deionized water after treatment to obtain modified polyester dyed cloth; treatment process prescription and conditions : Vinyl-containing trimethoxysilane: water: ethanol = 1:1:3; treatment temperature 25°C, pH 9, liquor ratio 1:10, time 1 hour;

[0034] (3) Surface graft polymerization: the modified polyester dyed cloth treated in step (2) is dipped into the mixed solution of photoinitiator Irgacure2959 and methacrylohydrazide, and it is realized by free radical reaction under the condition of ultraviolet light irradiation. Polym...

Embodiment 2

[0045] (1) Polyester surface pretreatment: pretreatment of polyester jacquard fabric with caustic soda, and washing with deionized water after treatment; treatment process prescription and conditions: caustic soda 1.5 g / L, lauryl dimethyl benzyl ammonium chloride 0.5 g / L, temperature 80°C, treatment time 1 hour;

[0046] (2) Polyester vinylation: The polyester fabric treated in step (1) is treated with vinyl-containing alkoxysilane, and washed with deionized water after treatment to obtain modified polyester fabric; treatment process prescription and conditions: containing Vinyl trimethoxysilane: water: ethanol = 1:1:5; treatment temperature 40°C, pH 10, bath ratio 1:10, time 2 hours;

[0047] (3) Surface graft polymerization: The modified polyester fabric treated in step (2) is dipped with the mixed solution of photoinitiator Irgacure2959 and methacrylohydrazide, and the polyester fabric is realized by free radical reaction under the condition of ultraviolet light irradiation...

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Abstract

The invention discloses a processing method for preparing a formaldehyde-removing sun-shading material by a graft polymerization method, belongs to the technical field of processing of composite functional materials, and aims to carry out light alkali pretreatment on a polyester fabric to generate hydroxyl on the fiber surface, and then react with a vinyl-containing alkoxy silane coupling agent to introduce vinyl into the polyester surface; secondly, the modified polyester fabric is padded with a photoinitiator and methacrylhydrazine, graft polymerization is initiated under ultraviolet irradiation, and polymethacrylhydrazine is formed on the surface of the fabric; and finally, coating the back surface of the polyester fabric, and baking to prepare the formaldehyde-removing sun-shading material. The method comprises the following specific process steps: (1) polyester surface pretreatment; (2) vinylation of polyester; (3) surface graft polymerization; and (4) processing the composite coating. The sunshade material prepared by the method is obvious in formaldehyde removal effect, low in energy consumption and low in strength loss in the processing process, and lasting in finishing effect.

Description

technical field [0001] The invention relates to the technical field of processing composite functional materials, in particular to a processing method for preparing formaldehyde-removing sunshade materials by graft polymerization. Background technique [0002] Fiber-based sunshade composite materials have been sought after in recent years and have been widely used in home improvement products (such as curtains, wall coverings), outdoor equipment (such as tents, umbrella cloth) and other fields. There are many processing methods for fiber-based sunshade composite materials, including: (1) using polyester or nylon filaments as raw materials and weaving high-weight fiber-based composite fabrics through double-layer weaving; (2) using adhesives Multi-layer fabrics made of synthetic fiber fabrics by hot-melt bonding; (3) Polyester or nylon jacquard or dyed fabrics are used as base fabrics, and sunshade composite materials after coating processing, etc. In recent years, with the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/04D06M14/32D06M11/38D06M13/463D06M13/513D06M101/32
Inventor 朱志伟田龙波张辉
Owner 浙江德易遮阳科技股份有限公司
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