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Method for preparing enhanced belt for nano SiO2/PET enhanced RTP

A technology of enhancement tape and nanometer, which is applied in the field of preparation of enhancement tape for nano-SiO2/PET enhanced RTP, and can solve the problems that have not been reported.

Active Publication Date: 2013-08-28
河南源宏高分子新材料有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned patents (applications) belong to the upstream technology in the technical chain of preparing the reinforcing belt, and the downstream technology of using the nano-SiO2 modified polyester (PET) industrial yarn to prepare the reinforcing belt has not been reported so far.

Method used

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  • Method for preparing enhanced belt for nano SiO2/PET enhanced RTP

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Experimental program
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specific Embodiment approach

[0025] A typical specific implementation is:

[0026] A kind of nano-SiO2 / PET strengthens the preparation method of RTP with strengthening tape, and its steps are:

[0027] 1. Put 8.0kg of nano-SiO2 uniformly dispersed in ethylene glycol, 390kg of ethylene glycol into the slurry mixing tank, stir for 30 minutes, then put in 860kg of terephthalic acid, 300g of antimony trioxide, stir for 2 hours, and then put in ester During the esterification process, the temperature of the reactor should be controlled at 250~260°C, the pressure at 1.5~2.0bar, and the reaction time about 3.5~4.0h. The chemical solution is transferred into the polycondensation kettle, and at this time, 5.0kg of KH-560 silane coupling agent and 400g of trimethyl phosphate are added. The conditions of polycondensation reaction are: the temperature in the kettle is 270~290℃, the vacuum degree is ≤80bar, and the reaction time is about 2.5~3.0 h, when the intrinsic viscosity is about 0.7dl / g, the reaction is over, ...

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Abstract

The invention discloses a method for preparing an enhanced belt for nano SiO2 / PET enhanced RTP, wherein the method is characterized in that: the method uses filament bundle prepared by a nano SiO2 PET composite material as a start material, and orderly comprises the following steps of drawing-off, cabling and impregnating. The method has advantages of reasonable technology, good quality of finished product and low production cost, satisfies technology requirement for enhancing a RTP pipe, and provides powerful technology support for widely popularizing and utilizing the RTP pipe in the fields of petroleum exploitation and transport, sea exploitation, city common waterpipe and facilities for a field army.

Description

technical field [0001] The invention relates to a method for preparing a nano-SiO2 / PET reinforced tape for RTP, which belongs to the production technology of polyester fiber reinforced plastic composite pipes. Background technique [0002] The SiO2 / PET reinforced RTP of the present invention is also called nano-SiO2 modified PET reinforced thermoplastic composite pipe. [0003] The reinforced thermoplastic composite pipe (RTP) involved in the present invention is an important new type of pipe material in the fields of ocean development, oil exploitation and transportation, field military facilities and municipal public water pipes. Its advantages are high strength, high temperature resistance, Corrosion-resistant, flexible, and can be laid for long distances in the form of coiled pipes, its future application prospects are very promising. [0004] The structure of the composite pipe is composed of inner, middle and outer layers (such as figure 1 shown). The inner layer is...

Claims

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Application Information

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IPC IPC(8): B29C70/40B29C70/54
Inventor 金嘉铭袁玉芝
Owner 河南源宏高分子新材料有限公司
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