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A modified high wear-resistant pipe material and its preparation method

A highly wear-resistant and modified technology, applied in the field of polymer materials, can solve the problems of difficult processing and easy wear of wear-resistant pipes, and achieve the effects of cost saving, high wear resistance, and improved dispersion and adhesion

Active Publication Date: 2020-07-24
陕西伟星新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a modified high wear-resistant pipe material and its preparation method, aiming to solve the problem that the existing wear-resistant pipe is difficult to process and easy to wear during use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] The present invention also provides a method for preparing the modified high wear-resistant pipe material, which includes the following steps:

[0041] Step A: Add silane, styrene thermoplastic elastomer, catalyst and filler into the high-speed mixer, first mix at low speed, then mix at high speed, then stop adding filler oil and thermoplastic resin, continue mixing at low speed, and then discharging to obtain the intermediate substance;

Embodiment 1

[0044] Step A: Combine 4.5 parts by weight of acryloxypropyl triethoxysilane, 25 parts by weight of thermoplastic styrene-butadiene-styrene (SBS) block copolymer, and 25 parts by weight of thermoplastic styrene- Ethylene / butylene-styrene (SEBS) block copolymer, 0.5 parts by weight of boron trifluoride acetic acid and 10 parts by weight of silica are added to the high-speed mixer, first mix at 200rpm for 10min at low speed, and then increase the speed to 800rpm , After mixing for 25 minutes, stop the machine, add 30 parts by weight of extender oil and 5 parts by weight of polyethylene resin, and continue to mix at a low speed of 200 rpm for 10 minutes to obtain an intermediate material;

[0045] Step B: adding the intermediate material into the extruder, after reacting at 120° C. for about 3 minutes, pelletizing to obtain the high wear-resistant pipe material.

Embodiment 2

[0047] Step A: Combine 8.1 parts by weight of acryloxypropyl triethoxysilane, 30 parts by weight of thermoplastic styrene-butadiene-styrene (SBS) block copolymer, and 0.9 parts by weight of boron trifluoride Add acetic acid and 30 parts by weight of silica into the high-speed mixer, first mix at 0rpm for 15min at low speed, then increase the speed to 1000rpm, mix for 1min, then stop, add 1 part by weight of extender oil and 30 parts by weight of polyethylene resin, continue Mix for 15min at a low speed of 0rpm and discharge to obtain an intermediate substance;

[0048] Step B: adding the intermediate material into the extruder, after reacting at 80° C. for 3 minutes, pelletizing to obtain the high wear-resistant pipe material.

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Abstract

The invention provides a modified high-wear-resistance pipeline material and a preparation method thereof. The modified high-wear-resistance pipeline material is prepared from the following ingredients in proportion by weight: 20 to 80 parts of silane grafted and modified styrenic thermoplastic elastomers, 1 to 30 parts of fillers, 1 to 50 parts of filling oil and 1 to 30 parts of thermoplastic resin, wherein the silane grafted and modified styrenic thermoplastic elastomer is generated by styrenic thermoplastic elastomers and silane through reaction under the catalyst catalysis effect. The modified high-wear-resistance pipeline material has the advantages that the styrenic thermoplastic elastomers are grafted and modified to form a light cross-linking system through the silane, so that thestyrenic thermoplastic elastomers are in a rubber shape; high elastic extension rate is realized; the impact energy of solid particles can be effectively absorbed through elastic deformation; meanwhile, excellent tensile strength and tear resistance are realized; after the material surface is scratched by sharp particles, the crack extending can be effectively prevented, so that the wear-resistant performance of the material is greatly improved.

Description

Technical field [0001] The invention relates to the technical field of polymer materials, in particular to a modified high wear-resistant pipeline material and a preparation method thereof. Background technique [0002] As a special industrial pipeline, wear-resistant pipeline plays a very important position in the national economy. It is mainly used in mines: such as slurry beneficiation and long-distance pipeline transportation of tailings; dredging: such as dredging and dredging of rivers, lakes and seas, and sand removal; metallurgy: such as transportation of concentrate slurry, metallurgical waste residue, coal powder, etc.; Chemical industry: the transportation of solid-liquid mixtures such as salt slurry and alkali slurry; power: such as ash removal, slag discharge, powder feeding, powder returning, and desulfurization process pipelines in thermal power plants. Therefore, wear-resistant pipes have been widely used in many industrial fields. [0003] At present, wear-resist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/00C08L23/06C08L23/12C08L91/00C08K3/36
CPCC08K2201/003C08L23/06C08L23/12C08L51/006C08L91/00C08L2203/18C08L2205/03C08L2205/035C08K3/36
Inventor 陆国强于进杰张明志程优婷
Owner 陕西伟星新型建材有限公司