High temperature resistant vacuum bag sealing adhesive tape
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A technology for sealing tapes and vacuum bags, applied in the directions of adhesives, polymer adhesive additives, adhesive types, etc., which can solve the problems of air leakage, separation of release paper and glue, poor high temperature resistance, etc.
Active Publication Date: 2010-12-22
科建高分子材料(上海)股份有限公司
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Problems solved by technology
[0003] In the manufacturing process of fan blades and aircraft, resins, such as unsaturated resin or epoxy resin, and fibers, such as glass fiber or carbon fiber, are molded through molds. During the manufacturing process, vacuum bags are used to seal and evacuate, that is, vacuum bags and manufacturing Adhesive tapes are required to be sealed between molds and between vacuum bags and vacuum bags. There are some problems in the sealing tapes of the prior art: (1) poor high temperature resistance: because the raw material resin is evacuated while heating during the molding process, Therefore, there is a very high requirement for the high temperature resistance of the sealing tape, 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 is easy to remove from the mold. It is allowed to have any residual glue left on the mold, which is also a point that the existing technology cannot meet
Existing sealing tapes also have disadvantages such as air leakage during vacuuming, release paper and glue detachment during construction, etc.
Method used
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Embodiment 1
[0017] Main matrix: 5 parts of butyl rubber, 5 parts of neoprene rubber, 15 parts of polyisobutylene, 25 parts of nano-calcium carbonate;
[0019] Other additives: 2 parts of glass fiber, 25 parts of superfine talcum powder, 1.3 parts of zinc oxide, 0.8 part of stearic acid, 1.0 part of tackifying resin, 1.0 part of titanium dioxide, 0.8 part of organic yellow, and 1.5 parts of plasticizer.
Embodiment 2
[0021] Main matrix: 8 parts of butyl rubber, 8 parts of neoprene rubber, 20 parts of polyisobutylene, 30 parts of nano calcium carbonate;
[0023] Other additives: 5 parts of glass fiber, 30 parts of superfine talc, 1.8 parts of zinc oxide, 1.5 parts of stearic acid, 1.5 parts of tackifying resin, 1.5 parts of titanium dioxide, 1.2 parts of organic yellow, and 2.5 parts of plasticizer.
Embodiment 3
[0025] Main matrix: 6 parts of butyl rubber, 6 parts of neoprene rubber, 17 parts of polyisobutylene, 28 parts of nano calcium carbonate;
[0027] Other additives: 3.5 parts of glass fiber, 27 parts of superfine talc, 1.6 parts of zinc oxide, 1.1 parts of stearic acid, 1.3 parts of tackifying resin, 1.2 parts of titanium dioxide, 1.0 part of organic yellow, and 2.0 parts of plasticizer.
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Abstract
The invention discloses a high temperature resistant vacuum bag sealing adhesive tape, which is characterized by adopting butyl rubber, chloroprene rubber, polyisobutene and nano calcium carbonate as main matrixes, then adding an auxiliary recessive high temperature vulcanizing agent, stirring and mixing, and extruding and molding, thus forming the high temperature resistant vacuum bag sealing adhesive tape. The high temperature resistant vacuum bag sealing adhesive tape is air-proof when vacuumizing is carried out, has no residual adhesive after demoulding and has good high temperature resistance, the highest resistant temperature of the sealing adhesive tape can reach 220DEG C.
Description
technical field [0001] The invention relates to a sealing tape, in particular to the technical field of a high-temperature-resistant vacuum bag sealing tape. Background technique [0002] With the rapid development of the economy, new energy and aerospace technology have also entered a period of rapid development in our country. In recent years, the country has vigorously developed wind power generation technology and large aircraft manufacturing technology, but many technologies are monopolized by Western developed countries, especially in the wind power industry and aerospace industry. In the manufacturing process of fan blades and aircraft, vacuum bags and making molds need to be sealed. Vacuum bags are also called decompression packaging, which is based on the principle of atmospheric pressure. 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 abrasive tool need to be sealed...
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
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Application Information
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