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High-strength transparent polytetrafluoroethylene building membrane and preparation method thereof

A technology of polytetrafluoroethylene film and polytetrafluoroethylene, which is applied in the field of high-strength transparent polytetrafluoroethylene architectural film and its preparation, to achieve the effects of good light transmission, high strength and long service life

Inactive Publication Date: 2014-08-06
HUZHOU SENNUO FLUORINE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the improvement of people's living standards, people's requirements for quality of life are getting higher and higher. For example, in the construction and decoration industry, it is hoped that it will not only have high strength, but also be resistant to ultraviolet rays, chemicals and pollution, etc., and also be breathable, windproof and waterproof. And many other functions, but the products on the existing market are not up to the above functions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1, a kind of high-strength transparent polytetrafluoroethylene architectural film and preparation method thereof, its steps are as follows:

[0033] (1) Mixing: fully mix the polytetrafluoroethylene dispersion resin powder labeled F106 produced by Daikin Chemicals Co., Ltd. of Japan and the ISOPARK hydrocarbon extrusion aid of Exxon Mobil Company in proportion, and mix them at 60 ° C. After standing for 24 hours, a mass formed.

[0034] (2) Billet making: pre-press the material into a cylindrical billet of Φ120mm at 50°C.

[0035] (3) Pushing: Place the cylindrical billet on a pushing machine, and push it into a round bar of Φ18mm at 55°C.

[0036] (4) Calendering: place the round bar on a calender, and calender it at 50°C to form an oil-containing base belt with a thickness of 150um and a width of 25cm.

[0037] (5) Degreasing treatment: Degrease the oil-containing base tape at 270°C, remove the extrusion aid, and obtain a degreased base tape.

[0038] (6...

Embodiment 2

[0042] Embodiment 2, a kind of high-strength transparent polytetrafluoroethylene architectural film and preparation method thereof, its steps are as follows:

[0043] (1) Mixing: fully mix the polytetrafluoroethylene dispersion resin powder labeled F106 produced by Daikin Chemicals Co., Ltd. of Japan and the ISOPARK hydrocarbon extrusion aid of Exxon Mobil Company in proportion, and mix them at 70 ° C. After standing for 24 hours, a mass formed.

[0044] (2) Billet making: pre-press the material into a cylindrical billet of Φ120mm at 55°C.

[0045] (3) Pushing: Place the cylindrical billet on a pushing machine and push it into a round bar of Φ29mm at 60°C.

[0046] (4) Calendering: place the round bar on a calender, and calender it at 50°C to form an oil-containing base belt with a thickness of 180um and a width of 35cm.

[0047] (5) Degreasing treatment: Degrease the oil-containing base tape at 280°C, remove the extrusion aid, and obtain a degreased base tape.

[0048] (6)...

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Abstract

The invention relates to a high-strength transparent polytetrafluoroethylene building membrane and a preparation method thereof. The method is characterized by comprising the following steps: material mixing, blank forming, extruding and pressing, calendaring, degreasing, longitudinal stretching, arc biaxial stretching, transverse stretching, sintering and solidifying, and then cooling setting. The polytetrafluoroethylene building membrane prepared through adopting the steps can be applied to the field of design and construction of permanent scalable architectures, the thickness of the building membrane is 100 to 800 micrometers, and the porosity is above 80%; as a coating material, the building membrane has the advantages of radiation protection, corrosion protection, breathability, light transmittance, high strength, high light transmittance, waterproofness, strong flexibility, environmental friendliness, good fire resistance, recyclability and long service life.

Description

Technical field: [0001] The invention relates to the field of membranes, in particular to a high-strength transparent polytetrafluoroethylene architectural membrane and a preparation method thereof. Background technique: [0002] Expanded PTFE microporous membrane is a porous material formed by multi-directional stretching (i.e. expansion treatment), calendering, heat treatment and other processes. It is a flexible and elastic microporous material. When the porosity is high, it can have Water permeable function, uniform pore size distribution, sterilizing and filtering membrane, the surface of the material is smooth and soft, but under the scanning electron microscope, it can be seen that there are a large number of micropores of 0.4 μm to 1 μm inside the material, and its porosity can account for 80%. . This material has the following characteristics: non-hazardous, light in weight, corrosion-resistant, resistant to environmental changes, overcomes the cold flow (creep) of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/02B29C43/24B29C43/26B29C55/10E04F13/07
Inventor 王中华
Owner HUZHOU SENNUO FLUORINE MATERIAL TECH
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