Reusable high temperature sealing tape for aerospace

A high-temperature sealing, aerospace technology, applied in the direction of adhesives, polymer adhesive additives, film/sheet adhesives, etc., can solve the problems of unsatisfactory economy and repeated use functions, so as to ensure the bonding strength Effect

Inactive Publication Date: 2015-04-15
SHANGHAI LEADGO TECH
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the manufacturing process of fan blades and aircraft, resins, such as unsaturated resins or epoxy resins, and fibers, such as glass fibers or carbon fibers, are molded through molds. The manufacturing process uses vacuum bags to seal and evacuate, that is, vacuum bags and molds Adhesive tapes are required to be sealed between the vacuum bag and the vacuum bag. Sealing tapes of the prior art (such as the authorized announcement number CN101921551B, the patent disclosed on May 1, 2013, and the authorized announcement number CN102796462B, published on February 26, 2014 patent) there will be some problems: because the adhesive viscosity of the sealing tape and the metal or composite material mold or the vacuum bag is extremely strong, for some actual production processes, such a high room temperature adhesive viscosity is not required, and the economy cannot be satisfied and reuse function

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reusable high temperature sealing tape for aerospace
  • Reusable high temperature sealing tape for aerospace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 8 parts of butyl rubber, 10 parts of neoprene rubber, 1.5 parts of cardanol modified phenolic resin, 30 parts of nano-calcium carbonate, 25 parts of superfine talcum powder, 1.6 parts of zinc oxide, 0.5 parts of stearic acid, 2.0 parts of tackifying resin , 1.0 parts of titanium dioxide, 1.0 parts of dioctyl phthalate, 2.0 parts of high-temperature tackifying resin, and 5.0 parts of paraffin oil.

[0012] The preparation method is as follows: stirring and mixing the above-mentioned components and extruding them into shape.

Embodiment 2

[0014] 9 parts of butyl rubber, 11 parts of neoprene rubber, 1.9 parts of cardanol modified phenolic resin, 32 parts of nano-calcium carbonate, 27 parts of superfine talc, 1.7 parts of zinc oxide, 0.8 part of stearic acid, 2.2 parts of tackifying resin , 1.2 parts of titanium dioxide, 1.1 parts of dioctyl phthalate, 2.3 parts of high-temperature tackifying resin, and 6.0 parts of paraffin oil.

[0015] The preparation method is as follows: stirring and mixing the above-mentioned components and extruding them into shape.

Embodiment 3

[0017] 9.5 parts of butyl rubber, 11.5 parts of neoprene rubber, 2.3 parts of cardanol modified phenolic resin, 34 parts of nano calcium carbonate, 29 parts of superfine talcum powder, 1.9 parts of zinc oxide, 1.1 parts of stearic acid, 2.4 parts of tackifying resin , 1.4 parts of titanium dioxide, 1.3 parts of dioctyl phthalate, 2.7 parts of high-temperature tackifying resin, and 7.0 parts of paraffin oil.

[0018] The preparation method is as follows: stirring and mixing the above-mentioned components and extruding them into shape.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a reusable high temperature sealing tape for aerospace. The sealing tape is prepared from butyl rubber, chloroprene rubber, cashew phenol modified phenolic resin, nano calcium carbonate, superfine talc powder, zinc oxide, stearic acid, tackifying resin, dicapryl phthalate, high temperature tackifying resin and paraffin oil through mixing and extrusion moulding. Paraffin oil and high temperature tackifying resin are added, and although the added paraffin oil reduces bonding strength of the tape a little under normal temperature, the bonding strength fully meets the bonding requirements; the tape has moderate bonding intensity with vacuum bag, vacuum bag can be torn conveniently, and the tape will not be pulled off from the mold; therefore, the vacuum bag for vacuumizing can be repeatedly used under low temperature, and is convenient and practical. The high temperature bonding resin under high temperature can guarantee the bonding strength, so that the vacuum system can not leak.

Description

technical field [0001] The invention relates to the field of sealing tapes, in particular to a reusable high-temperature sealing tape for aerospace. Background technique [0002] In the manufacturing process of wind turbine blades and aircraft, there is a need to seal between the vacuum bag and the production mold. Vacuum bags, also known as decompression packaging, are based on the principle of the atmosphere. The main function of vacuum bags is to remove oxygen. That is, during the manufacturing process of fan blades and aircraft, the vacuum bag and the mold need to be sealed while vacuuming. This requires a tape with good sealing performance for sealing. [0003] In the manufacturing process of fan blades and aircraft, resins, such as unsaturated resins or epoxy resins, and fibers, such as glass fibers or carbon fibers, are molded through molds. The manufacturing process uses vacuum bags to seal and evacuate, that is, vacuum bags and molds Adhesive tapes are required to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09J7/00C09J111/00C09J123/22C09J11/08C09J11/06C09J11/04
Inventor 徐巍巍胡潇胡仲杰岑婵芳邓鹏鹏
Owner SHANGHAI LEADGO TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap