Title:
METHOD FOR COATING MODIFIED POLYPHENYLENE SULPHIDE/POLYTETRACHLOROETHYLENE ON BASALT FIBRE FILTER MATERIAL IN LAYERS
Document Type and Number:
WIPO Patent Application WO/2016/041099
Kind Code:
A1
Abstract:
A method for coating a modified polyphenylene sulphide/polytetrachloroethylene on a basalt fibre filter material in layers, comprising: a step of preparing basalt fibres as a filter material base fabric; a step of mixing a linear polyphenylene sulphide and a hyperbranched polyphenylene sulphide to prepare a modified polyphenylene sulphide emulsion; a step of mixing the modified polyphenylene sulphide emulsion, a polytetrafluoroethylene emulsion, and a fluorine-containing silane coupling agent to prepare a bottom-layer coating; a step of mixing a polytetrafluoroethylene emulsion, a fluorine-containing silane coupling agent and an F46 emulsion to prepare a surface-layer coating; a step of impregnating the filter material base fabric in the bottom-layer coating, curing at a high temperature, and cooling with the furnace to prepare a bottom layer; and a step of spraying the surface-layer coating on the surface of the bottom layer using a spray gun and plasticizing at a high temperature to obtain a finished product. With the preparation method of the present invention, the prepared composite filter material has a good thermal stability and corrosion resistance, and a stronger mechanical strength, the dispersity and compactness of the finished fibres are improved, and the preparation method has a simple manufacturing process and lower costs and is suitable for large-scale industrial production.
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Inventors:
YUAN ZHENQI (CN)
Application Number:
PCT/CN2014/000857
Publication Date:
March 24, 2016
Filing Date:
September 19, 2014
Export Citation:
Assignee:
TAICANG SU LUN TEXTILE CHEMICAL FIBER CO LTD (CN)
International Classes:
D06M15/63; B01D39/14; B32B27/08; B32B27/30; D06M13/50; D06M15/256
Foreign References:
| CN104389178A | 2015-03-04 | |||
| CN102228764A | 2011-11-02 | |||
| CN1884640A | 2006-12-27 | |||
| JP2010196187A | 2010-09-09 |
Other References:
TANG, SHOUQIU ET AL.: "Study on Corrosion Resistant Complex Coating PTFE/PPS", SHANDONG SCIENCE, vol. 12, no. 01, 31 March 1999 (1999-03-31), pages 31 - 36
Attorney, Agent or Firm:
LIAN & LIEN IP ATTORNEYS (CN)
北京连和连知识产权代理有限公司 (CN)
北京连和连知识产权代理有限公司 (CN)
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