Tubing with high strength and high toughness for mining and preparation method thereof

A high-toughness mine and pipe technology, which is applied in the field of high-strength and high-toughness mine pipes and their preparation, can solve the problems of unsatisfactory strength and toughness of composite pipes, inability to meet the use requirements of mine pipes, and limit application scope, etc. Thermal stability, excellent antistatic properties, and the effect of improving dispersion stability

Inactive Publication Date: 2017-05-17
宋志勇
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composite pipes prepared in the above literature have the disadvantages of large surface resistance and poor antistatic properties. Once the pipe surface is rubbed, static electricity will be generated and gathered on the pipe surface. If it is used in coal mine production operations, it may cause fire when the static electricity is discharged. and gas explosion, unable to meet the requirements for the use of mining pipes, limiting its application range
In addition, the strength and toughness of the composite pipes made by the above documents are not satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] A high-strength and high-toughness mining pipe, made of the following raw materials (kg): polyvinyl chloride 60, diglycidyl hexahydrophthalate 12, graphene oxide 22, sub-white corundum fine powder 15, three Glyceryl Stearate 5, Basic Magnesium Sulfate Whiskers 13, Bis(2-Ethylhexyl) Phthalate 11, Micropowder Silica Gel 16, Montan Wax 6.5, Montmorillonite 31, Aluminum Stearate 3, Hard Magnesium fatty acid 2, white jade powder 19.

[0019] A method for preparing a high-strength and high-toughness mining pipe, comprising the following steps:

[0020] (1) Add montmorillonite to 95% absolute ethanol according to the solid-to-liquid ratio of 1:10-20, stir well, and then add N-(β-aminoethyl )-γ-aminopropylmethyldimethoxysilane, heated in an oil bath to 65-70°C, stirred for 1.5-2h, cooled to room temperature, washed three times with ethanol and deionized water respectively, freeze-dried, and pulverized to Nano-particle size, sieved to obtain aminated nano-montmorillonite;

[...

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Abstract

The invention discloses tubing with high strength and high toughness for mining and a preparation method thereof. The tubing is prepared by the following raw materials in parts by weight: 50-70 parts of polyvinyl chloride, 10-15 parts of diglycidyl 1,2-cyclohexanedicarboxylate, 18-26 parts of oxidized graphene, 11-18 parts of sub white corundum fine powder, 4-7 parts of tristearin, 10-15 parts of basic magnesium sulfate whisker, 9-14 parts of bis(2-ethylhexyl) phthalate, 12-19 parts of aerosol, 5-8 parts of montan wax, 24-37 parts of montmorillonite, 2-4 parts of aluminium stearate, 1-3 parts of magnesium stearate, and 16-23 parts of white onyx powder. Based on a high-molecular blend system of polyvinyl chloride, diglycidyl 1,2-cyclohexanedicarboxylate and bis(2-ethylhexyl) phthalate, the sub white corundum fine powder, the basic magnesium sulfate whisker, the white onyx powder, and other raw materials are added, so that tensile strength and toughness of the material are improved, and heat resistance, wear resistance and shock resistance of the material are improved.

Description

technical field [0001] The invention relates to a PVC pipe and a preparation method thereof, in particular to a high-strength and high-toughness mining pipe and a preparation method thereof. Background technique [0002] Montmorillonite is a typical natural clay mineral, which has the advantages of high reserves, various types, low price and excellent structure. Montmorillonite also has good dispersion properties, and can be widely used in the polymer material industry as an additive for nano-polymer polymer materials to improve mechanical properties, dimensional stability, thermal stability and gas barrier properties, thereby enhancing polymer properties. The role of comprehensive physical properties, while improving the processing performance of materials, has broad application prospects. [0003] Zheng Yuying and Peng Chao used montmorillonite as the main raw material in their article "Research and Development of PVC-U / Montmorillonite Nanocomposite Pipes", and developed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/06C08K13/06C08K9/06C08K9/10C08K7/08C08K5/1515C08K3/04C08K3/22C08K5/103C08K5/12C08K3/36C08K3/34C08K5/098C08K3/26
CPCC08L27/06C08L2201/04C08L2201/08C08L2203/18
Inventor 宋志勇
Owner 宋志勇
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