Hose for delivering liquefied natural gas and preparation method thereof
A technology for liquefied natural gas and hoses, applied in the direction of hoses, pipes, mechanical equipment, etc., can solve problems such as potential safety hazards, and achieve good wear resistance and excellent bonding performance
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[0060] Example 1
[0061] A hose for transporting liquefied natural gas, comprising a rubber tube body, which includes an inner layer, an intermediate layer and a surface layer in order from the inside to the outside;
[0062] The inner layer is formed by bonding an EPDM rubber layer and an inner lining film through vulcanization;
[0063] The color of the EPDM rubber is milky white;
[0064] The lining film is mainly prepared from the following parts by weight: 30 parts of LLDPE, 25 parts of polyvinyl alcohol, 10 parts of UHMWPE, 5 parts of polymer cross-linked polyethylene, 9 parts of polyimide, 7 parts of tetraethylpentamine , 6 parts of α-sulfo fatty acid alkyl ester salt, 6 parts of epoxy resin, 5 parts of SBR latex, 4 parts of rosin;
[0065] The lining film adopts a conventional method to extrude the raw materials and then blow molding and stretching into a film, and the thickness of the lining film is 0.42 mm.
[0066] The intermediate layer is formed by vulcanizing and bonding ...
Example Embodiment
[0086] Example 2
[0087] A hose for transporting liquefied natural gas, comprising a rubber tube body, which includes an inner layer, an intermediate layer and a surface layer in order from the inside to the outside;
[0088] The inner layer is formed by bonding an EPDM rubber layer and an inner lining film through vulcanization;
[0089] The color of the EPDM rubber is milky white;
[0090] The lining film is mainly prepared from the following parts by weight: 20 parts of LLDPE, 20 parts of polyvinyl alcohol, 5 parts of UHMWPE, 3 parts of polymer cross-linked polyethylene, 8 parts of polyimide, 5 parts of tetraethylpentamine , 5 parts of α-sulfo fatty acid alkyl ester salt, 5 parts of epoxy resin, 4 parts of SBR latex, 3 parts of rosin;
[0091] The lining film adopts conventional methods to extrude the raw materials and then blow molding and stretching into a film, and the thickness of the lining film is 0.35 mm.
[0092] The intermediate layer is made of vulcanized bonding of EPDM r...
Example Embodiment
[0112] Example 3
[0113] A hose for transporting liquefied natural gas, comprising a rubber tube body, which includes an inner layer, an intermediate layer and a surface layer in order from the inside to the outside;
[0114] The inner layer is formed by bonding an EPDM rubber layer and an inner lining film through vulcanization;
[0115] The color of the EPDM rubber is milky white;
[0116] The lining film is mainly prepared from the following raw materials in parts by weight: 40 parts of LLDPE, 30 parts of polyvinyl alcohol, 13 parts of UHMWPE, 8 parts of polymer cross-linked polyethylene, 10 parts of polyimide, 8 parts of tetraethylpentamine , 7 parts of α-sulfo fatty acid alkyl ester salt, 7 parts of epoxy resin, 6 parts of SBR latex, 5 parts of rosin;
[0117] The lining film adopts a conventional method to extrude the raw materials and then blow molding and stretching into a film, and the thickness of the lining film is 0.5 mm.
[0118] The intermediate layer is made of vulcanize...
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