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High-temperature-resistant vacuum bag sealing adhesive tape

A sealing tape, vacuum bag technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of low high temperature resistance and poor high temperature resistance of sealing tapes

Active Publication Date: 2012-11-28
NINGBO LIGAO COMPOSITE MATERIAL
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  • 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 Tape is needed to seal between the vacuum bag and the vacuum bag, and there are some problems in the sealing tape of the prior art: (1) Poor high temperature resistance: because the raw material resin is vacuumized while heating during the molding process, so the sealing tape of the prior art has some problems: The high temperature resistance of the sealing tape has very high requirements, and the high temperature resistance of the sealing tape of the prior art is low; (2) The cleanliness of demoulding: In order to facilitate construction, many manufacturers require that the sealing tape should be easy to demould, and no Any residual glue remains on the mold, which is also a point that the existing technology cannot meet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 8 parts of butyl rubber, 10 parts of neoprene rubber, 1.5 parts of cardanol modified phenolic resin, 30 parts of nano calcium carbonate, 3 parts of glass fiber, the length is 5mm, 25 parts of superfine talcum powder, 1.6 parts of zinc oxide, stearin 0.5 parts of acid, 2.0 parts of tackifying resin, 1.0 part of titanium dioxide, and 1.0 part of dioctyl phthalate.

[0022] The preparation method is as follows: stirring and mixing the above-mentioned components and extruding them into shape.

Embodiment 2

[0024] 9 parts of butyl rubber, 11 parts of neoprene, 2.0 parts of cardanol modified phenolic resin, 32 parts of nano-calcium carbonate, 4 parts of glass fiber, the length is 5.5mm, 28 parts of superfine talcum powder, 1.8 parts of zinc oxide, hard 1.0 parts of fatty acid, 2.3 parts of tackifying resin, 1.2 parts of titanium dioxide, and 1.2 parts of dioctyl phthalate.

[0025] The preparation method is as follows: stirring and mixing the above-mentioned components and extruding them into shape.

Embodiment 3

[0027] 10 parts of butyl rubber, 12 parts of neoprene, 2.5 parts of cardanol modified phenolic resin, 35 parts of nano-calcium carbonate, 6 parts of glass fiber, 6 mm in length, 30 parts of superfine talcum powder, 2.0 parts of zinc oxide, stearin 1.2 parts of acid, 2.5 parts of tackifying resin, 1.5 parts of titanium dioxide, and 1.4 parts of dioctyl phthalate.

[0028] The preparation method is as follows: stirring and mixing the above-mentioned components and extruding them into shape.

[0029] Table 1 reflects the high temperature resistance and mold release performance of the above examples.

[0030] Table 1

[0031] project

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PUM

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Abstract

The invention discloses a high-temperature-resistant vacuum bag sealing adhesive tape, which is formed by stirring, mixing and extruding butyl rubber, chloroprene rubber, cardanol modified phenol-formaldehyde resin, nano calcium carbonate, glass fiber, superfine talcum powder, zinc oxide, stearic acid, tackifying resin, titanium dioxide and dioctyl phthalate. The high-temperature-resistant vacuum bag sealing adhesive tape has the beneficial effects that no air leakage is caused during vacuuming in a manufacturing process of a fan blade and an airplane, the maximum service temperature can reach 425 DEG C, and meanwhile, no residual adhesive is remained on a mold when the high-temperature-resistant vacuum bag sealing adhesive tape is separated from the manufacturing mold.

Description

technical field [0001] The invention relates to a sealing tape, in particular to a high temperature resistant vacuum bag sealing tape. 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 Tape is needed to seal between the vacuum ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J111/00C09J123/22C09J161/06C09J11/04C09J11/06C09K3/10
Inventor 胡仲年岑婵芳胡潇
Owner NINGBO LIGAO COMPOSITE MATERIAL
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