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Bendable organic imitation steel fiber

A steel-like fiber, organic technology, applied in the field of polypropylene crude fiber and its preparation, can solve the problems that do not involve improving the resilience of polypropylene crude fiber and the like

Inactive Publication Date: 2011-05-11
李群胜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Application No. 200810021644.3 discloses a polypropylene crude fiber for concrete and its preparation method, which does not involve the problem of improving the resilience of polypropylene crude fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The components of polypropylene are mixed according to the following proportions, extruded by a screw extruder, cooled and solidified in a water bath at 5-30°C, then stretched at high power 11-13 levels, heat-set at 65-150°C, and then The surface is embossed and cut to get the bendable organic imitation steel fiber we want.

[0021] Polypropylene 60%

[0022] Calcium Carbonate Filler Masterbatch 32%

[0023] Glass fiber filled masterbatch 8%

Embodiment 2

[0025] The components of polypropylene are mixed according to the following proportions, extruded by a screw extruder, cooled and solidified in a water bath at 5-30°C, and then stretched at high power 11-13 levels, heat-set at 65-150°C, and then The surface is embossed and cut to get the bendable organic imitation steel fiber we want.

[0026] Polypropylene 60%

[0027] Talc filler masterbatch 32%

[0028] Ceramic fiber filled masterbatch 8%

Embodiment 3

[0030] The components of polypropylene are mixed according to the following proportions, extruded by a screw extruder, cooled and solidified in a water bath at 5-30°C, and then stretched at high power 11-13 levels, heat-set at 65-150°C, and then The surface is embossed and cut to get the bendable organic imitation steel fiber we want.

[0031] Polypropylene 60%

[0032] Bentonite filler masterbatch 32%

[0033] Ceramic fiber filled masterbatch 8%.

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PUM

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Abstract

The invention relates to a bendable organic imitation steel fiber for building concrete. The preparation method of the bendable organic imitation steel fiber comprises the following steps of: adding a stiffness enhancing agent, a reinforcing agent, a lubricating agent, and the like to polypropylene used as a main raw material for blending; and then carrying out wire drawing with high multiplying power to manufacture a coarse fiber with teeth. The fiber can be used for suppressing a plastic shrinkage microcrack of cement mortar and concrete and improving the strength and the toughness of a cement product, and because the added stiffness enhancing agent forms a structure coupling hardness with softness together with the polypropylene, the fiber overcomes the defects of large elasticity and difficult bending of a pure polypropylene organic imitation steel fiber.

Description

Technical field: [0001] The invention relates to a polypropylene crude fiber and a preparation method thereof, in particular to a preparation method of a bendable organic imitation steel fiber for building concrete. Background technique: [0002] Concrete is a very important building material. It is currently developing towards high performance, high functionality, and high durability. However, the inherent shortcomings of concrete, such as low tensile and compressive strength, high brittleness, poor toughness, and poor resistance to deformation, restrict its development and development. Therefore, improving the flexural resistance and flexural toughness of concrete, and improving the durability and service life of structures have become the most concerned issues in the engineering field. At present, the commonly used method is to add steel fibers and organic imitation steel fibers in the concrete. in: [0003] The reinforcement effect of steel fiber on concrete to improve...

Claims

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Application Information

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IPC IPC(8): D01F6/46C04B16/06
Inventor 李群胜
Owner 李群胜
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