Method for preparing polytetrafluoroethylene spatial structure building film material

A polytetrafluoroethylene and architectural membrane technology, which is applied in textiles and papermaking, fiber processing, singeing, etc., can solve the problems of reducing strength and softness, difficulty in weaving glass fiber yarns, etc., and reduce the decrease in tensile strength. , Improve self-cleaning and anti-ultraviolet function, easy to manufacture effect

Active Publication Date: 2008-08-13
JIANGSU VEIK TECH & MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of the difficulty in weaving modified glass fiber yarn and the reduction of strength and softness by repeated sintering in the prior art, and provide a glass fiber cloth as the base material, which can be coated multiple times, dried at low temperature, One-time sintering architectural membrane material manufacturing method, the spatial structural architectural membrane material with bottom layer, structural layer and surface layer manufactured by this method is tensile, tear resistant, high in strength, aging resistant, good in flexibility, good in light transmission, and easy to use long life

Method used

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  • Method for preparing polytetrafluoroethylene spatial structure building film material

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Comparison scheme
Effect test

Embodiment 1

[0018] (1) Low-temperature singeing treatment of glass fiber cloth: the singeing treatment is carried out on the impregnation equipment, and the weight of the base fabric is 660g / m 2 . The glass fiber cloth roll is fixed on the transmission shaft of the impregnation equipment. The three drying areas of the oven are 6 meters high, and each 2 meters is 1 area. The set temperature of the first zone of the oven is 180°C, and the set temperature of the second and third zones is 280°C. The glass fiber cloth is coiled after being singed in the oven at a line speed of 3 m / min, and the dust attached to the surface of the glass fiber cloth is removed. Wetting agent and other organic components can improve the adhesion of PTFE;

[0019] (2) Dipping and drying treatment to form the bottom layer: the bottom layer impregnating agent is proportioned by weight percentage: 97% of polytetrafluoroethylene emulsion with a solid content of 60%, 1.8% of hydrophilic nano silicon dioxide, 0.7% of or...

Embodiment 2

[0025] (1) Low-temperature singeing treatment of glass fiber cloth: singeing treatment is carried out on impregnation equipment. Base fabric weight 450g / m 2 . The glass fiber cloth roll is fixed on the transmission shaft of the impregnation equipment. The three drying areas of the oven are 6 meters high, and each 2 meters is 1 area. The set temperature of the first zone of the oven is 200°C, and the set temperature of the second and third zones is 280°C. The glass fiber cloth is coiled after being singed in the oven at a line speed of 3.5 m / min, and the dust attached to the surface of the glass fiber cloth is removed. Wetting agent and other organic components can improve the adhesion of PTFE;

[0026](2) Dipping and drying treatment to form the bottom layer: the bottom layer impregnating agent is proportioned by weight percentage: 98% of polytetrafluoroethylene emulsion with a solid content of 60%, 1% of hydrophilic nano silicon dioxide, 0.5% of organic thickener, Silane c...

Embodiment 3

[0032] (1) Low-temperature singeing treatment of glass fiber cloth: singeing treatment is carried out on impregnation equipment. Base fabric weight 330g / m 2 . The glass fiber cloth roll is fixed on the transmission shaft of the impregnation equipment. The drying area of ​​the oven is 6 meters high, and every 2 meters is a zone. The set temperature of the first section of the oven is 180°C, and the set temperature of the second and third sections is 260°C. The glass fiber cloth is coiled after being singed in the oven at a line speed of 4 m / min, and the surface of the glass fiber cloth is removed. The attached wetting agent and other organic components can improve the adhesion of PTFE;

[0033] (2) Dipping and drying treatment to form the bottom layer: the bottom layer impregnating agent is proportioned by weight percentage: 98.5% of polytetrafluoroethylene emulsion with a solid content of 60%, 0.8% of hydrophilic nano silicon dioxide, 0.3% of organic thickener, Silane coupl...

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Abstract

The invention relates to a producing method of a teflon spatial structure membrane comprising following steps: fiberglass cloth low temperature genapping treatment, fiberglass cloth bottom layer dipping treatment, structure layer dipping treatment, surface layer dipping treatment and sintering treatment. Low temperature high speed genapping, multitime coating low-temperature treatment, and once hyperthermia flash sintering effectively reduce tensile strength descending caused by high-sintering treatment. Since fiberglass cloth is used as backing material, dipping treatment is not needed to be performed on the fiberglass yarn, the procedure is simplified to facilitate the production thereof, and shortcomings in prior art are overcome which are modified fiberglass yarn weaving difficulty and intensity and plasticity descending caused by multitime sintering. The teflon spatial structure membrane produced by using the invented method has a bottom layer, a structure layer and a surface layer, is provided with high pulling-against intensity, high tearing-against intensity, anti-aging property, good flexibility, good light-admitting quality and a long service life, and can be used widely in air stations, gymnasiums, exhibition halls, large-scale factory buildings and factory building warehouses.

Description

technical field [0001] The invention relates to the technical fields of special textiles, polymer materials and building materials, in particular to a method for manufacturing a high-strength, durable and environment-friendly space structure architectural membrane. Background technique [0002] Membrane structure for building is a newly developed building component in building structure. It is a high-tech project integrating architecture, structural mechanics, fine chemical industry and material science. Membrane material is the core of membrane structure buildings. It is widely used in airports, gymnasiums, exhibition halls and other public buildings, Large factories and warehouses. [0003] Improving tensile strength and increasing flexibility are two major technical problems in the production of membrane materials. Under the condition of selecting a certain fabric thickness and warp and weft density, the tensile strength of glass fiber cloth can meet the requirements of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N7/06D06N3/04D06C9/00D06M15/256D06M11/79D06M13/50D06M11/46D06M101/16
Inventor 李维伟
Owner JIANGSU VEIK TECH & MATERIALS CO LTD
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