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Process for production of special-shaped high polymer plastic-steel fabric

A technology of plastic-steel fiber and production method, which is applied in fiber processing, filament/line forming, construction, etc., can solve the problems of steel fiber and steel mesh having a large proportion, unsuitable for overhead construction of bridge deck, affecting project quality, etc. High strength, superior comprehensive application performance, and the effect of improving engineering quality

Inactive Publication Date: 2005-06-29
NINGBO DACHENG ADVANCED MATERIAL
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AI Technical Summary

Problems solved by technology

However, due to the poor acid and alkali resistance of steel fiber and steel mesh, they are easy to rust and affect the quality of the project.
Moreover, the proportion of steel fiber and steel mesh is large, so it is not suitable for overhead construction such as bridge decks, the construction cost is large, and the construction is cumbersome, so it cannot be fully promoted

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Process for production of special-shaped high polymer plastic-steel fabric

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Experimental program
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Embodiment Construction

[0017] The method steps of concrete implementation are as follows:

[0018] 1. Add 5-8% copolymer polyethylene with polypropylene or polyester, heat at 150°C-200°C, and knead evenly in a conical twin-screw equipment.

[0019] 2. Add 0.3% to 0.2% PP nucleating agent or PET nucleating agent to the uniformly mixed slurry and inject it into the ordinary screw extruder. Zone 200°C, Zone 3 210°C, Zone 4 230°C, inject spinneret head cover and extrude spinneret.

[0020] 3. Put the spinning monofilament into the emulsion to cool, the temperature of the emulsion is 5°C-10°C, and at the same time stretch the nozzle for the first time, and the stretching ratio is 3-4.5 times.

[0021] 4. Put the monofilament stretched by the nozzle into a seven-roll drafting machine, and then introduce it into a high-temperature activation treatment tank. Stretching, the stretching ratio is 4.8 to 5.5 times.

[0022] 5. The monofilament that has undergone a high-temperature activation treatment and st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a high polymer used for controlling concrete cracks in building cement concrete engineering, effectively improving the toughness, impact resistance, bending resistance, bending resistance and impermeability of concrete, and inhibiting the cracking of the middle layer of asphalt roads and the generation of reflection cracks, etc. The production method of special-shaped plastic steel fiber. It uses polypropylene, polyethylene, polyester and other copolymers as the main raw materials, through advanced production technology and special treatment of fiber structure, to obtain rough surface, five-lobed, six-lobed and multi-lobed cross-section, and a cross-section of Concave-convex, wavy, zigzag shaped fibers. The fiber has high tensile strength, large elastic modulus, acid and alkali resistance, aging resistance, easy dispersion, light specific gravity, and firm combination with cement concrete and asphalt concrete.

Description

technical field [0001] The invention relates to a production method of high-polymer special-shaped plastic-steel fiber which replaces traditional steel mesh, steel wire mesh and steel fiber to improve the toughness and impact resistance of cement concrete and asphalt concrete. Background technique [0002] For a long time, the cracking and water seepage of cement concrete and asphalt concrete have been the biggest defect affecting the quality of the project, and it is also the most troublesome problem for construction engineering technicians. In order to solve this problem, many experts have researched and developed a lot of reinforcing materials, such as: 1. For cement concrete / mortar to inhibit concrete / mortar cracking, water seepage polypropylene fiber, polypropylene nitrile fiber, glass fiber, asbestos, etc., but this It can only solve the early anti-microscopic cracks and anti-seepage effects, and it cannot be permanently maintained at all. At the same time, cement con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B16/06D01D5/253E01C7/26
Inventor 陈成泗
Owner NINGBO DACHENG ADVANCED MATERIAL
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