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Modified elastomer, thermoplastic mortar/concrete conveying pipe and manufacturing method of thermoplastic mortar/concrete conveying pipe

A concrete delivery pipe, thermoplastic technology, applied in the direction of pipes/pipe joints/fittings, hoses, pipes, etc., can solve the problems of waste of manpower, non-environmental protection, poor wear resistance, etc., to avoid the inconvenience of pipeline use, improve durability Grinding performance, the effect of good wear resistance

Active Publication Date: 2020-09-01
四川鑫成新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in the use of this type of pipeline for mortar transportation
First of all, the wear resistance of the rubber material is poor, and the mortar generally fails to deliver no more than 500 cubic meters, resulting in frequent replacement of the delivery pipe during the spraying process, which wastes a lot of manpower
Moreover, worn rubber delivery pipes cannot be recycled and recycled, which is not environmentally friendly.
In addition, because the vulcanization process must be used in the production process of the rubber delivery pipe, the rubber hose can only be prepared as a fixed-length pipeline. For special occasions (such as the transportation distance is too long), the connection method must be used, which is inconvenient to use.

Method used

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  • Modified elastomer, thermoplastic mortar/concrete conveying pipe and manufacturing method of thermoplastic mortar/concrete conveying pipe
  • Modified elastomer, thermoplastic mortar/concrete conveying pipe and manufacturing method of thermoplastic mortar/concrete conveying pipe
  • Modified elastomer, thermoplastic mortar/concrete conveying pipe and manufacturing method of thermoplastic mortar/concrete conveying pipe

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preparation example Construction

[0064] The preparation method of the above-mentioned modified elastomer is as follows: after uniformly mixing the raw materials in proportion, extruding and pelletizing with a twin-screw extruder, and the extruding temperature is 100-250°C.

[0065] The present invention also provides a preparation method for the above-mentioned thermoplastic mortar / concrete delivery pipe, comprising the steps of:

[0066] [1] A wear-resistant core tube composed of a modified elastomer layer and a wear-resistant material layer is prepared by co-extruding the modified elastomer and the inner layer of wear-resistant material. The wear-resistant material provides the wear resistance of the final product, and the modified elastic The body provides melt strength under the premise of ensuring softness to ensure product extrusion performance and product longitudinal strength;

[0067] [2] Prepare a winding layer on the periphery of the wear-resistant core tube to provide radial strength and ensure th...

Embodiment 1

[0071] The modified elastomer used for the material of the outer sheath 1 is made of the following raw materials in mass percentage: 1% calcium carbonate filler, 80% oil-extended SEBS elastomer, 14% polyethylene, 1% hindered phenolic antioxidant, polyethylene Wax 2%, Masterbatch 2%.

[0072] The winding layer 2 selects steel wire for spiral winding.

[0073] The modified elastomer used in the modified elastomer layer 3 is made of the following raw materials in mass percentage: 1% of calcium carbonate filler, 90% of oil-extended SEBS elastomer, 4% of polyethylene, 1% of hindered phenolic antioxidant, polyethylene Wax 2%, Masterbatch 2%.

[0074] The wear-resistant material used in the wear-resistant material layer 4 is ultra-high molecular weight polyethylene with a molecular weight of 1.5 million.

Embodiment 2

[0076] The modified elastomer used for the material of the outer sheath 1 is made of the following raw materials in mass percentage: calcium carbonate filler 55%, oil-extended SEBS elastomer 10%, polyethylene 30%, hindered phenolic antioxidant 1%, polyethylene Wax 2%, Masterbatch 2%.

[0077] The winding layer 2 selects steel wire for spiral winding.

[0078] The modified elastomer used in the modified elastomer layer 3 is made of the following raw materials in mass percentage: calcium carbonate filler 55%, oil-extended SEBS elastomer 10%, polyethylene 30%, hindered phenolic antioxidant 1%, polyethylene Wax 2%, Masterbatch 2%.

[0079] The wear-resistant material used in the wear-resistant material layer 4 is GXCG-1101, a special material for polyolefin wear-resistant pipes.

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Abstract

The invention belongs to the technical field of conveying pipes and particularly relates to a modified elastomer, a thermoplastic mortar / concrete conveying pipe and a manufacturing method of the thermoplastic mortar / concrete conveying pipe. The thermoplastic mortar / concrete conveying pipe aims to solve the problems of the prior art. The thermoplastic mortar / concrete conveying pipe comprises an outer protective sleeve, a winding layer and a wear-proof core pipe. The wear-proof core pipe comprises an outer modified elastomer layer and an inner wear-proof material layer, wherein the performance of the modified elastomer layer meets the bending flexibility demand of the mortar / concrete conveying pipe, meets the longitudinal strength demand of the mortar / concrete conveying pipe in the mortar conveying process, and meets the demand for the strength and the rigidity of the wear-proof core pipe in the process of machining the winding layer, and the performance of the wear-proof material layermeets the demand for resisting wear from mortar in the mortar conveying process. The invention further provides a raw material formula of the modified elastomer and a manufacturing method of the thermoplastic mortar / concrete conveying pipe. The modified elastomer, the thermoplastic mortar / concrete conveying pipe and the manufacturing method of the thermoplastic mortar / concrete conveying pipe are suitable for the mortar / concrete conveying field.

Description

technical field [0001] The invention belongs to the technical field of conveying pipes, is applicable to the field of mortar and concrete conveying, and specifically relates to a modified elastomer, a thermoplastic mortar / concrete conveying pipe and a preparation method thereof. Background technique [0002] Mortar and concrete are widely used bonding substances in construction. They are composed of a certain proportion of sand, stones and cementing materials (cement, lime paste, clay, etc.) and water, also called mortar. Its mixing, conveying and use are essential work on various construction sites. [0003] The delivery of mortar / concrete is carried out by mortar pump and mortar / concrete delivery pipe. For the mortar / concrete delivery pipe, there are usually the following technical requirements: (1) Due to the different working conditions on the construction site, the mortar / concrete delivery pipe is required to be able to bend, and the diameter change of the pipe at the ...

Claims

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Application Information

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IPC IPC(8): F16L11/08F16L11/12F16L57/06C08L53/02C08L23/06C08L23/08C08L23/16C08L23/12C08K13/02C08K5/09C08K3/26
CPCF16L11/081F16L11/12F16L57/06C08L53/025C08L23/0853C08L23/16C08L2205/03C08L2207/04C08L2205/025C08K2003/265C08L23/06C08K3/26C08L23/0815C08L23/12C08K13/02C08K5/09
Inventor 刘洪理陈晓梅
Owner 四川鑫成新材料科技有限公司
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