Polypropylene fiber reinforced inorganic polymer composite material and preparation method thereof

A technology of inorganic polymers and polypropylene fibers, which is applied in solid waste management, sustainable waste treatment, cement production, etc., can solve the problems of not finding patents on polypropylene bundled monofilament fiber reinforced inorganic polymers, and achieve improvement Flexural strength and compressive strength, the effect of inhibiting the formation and development of cracks, preventing the formation and development of cracks

Inactive Publication Date: 2009-11-04
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0086] According to the search made by the applicant, no relevant patents related to polypropylene bundled monofilament fiber reinforced inorganic polymers have been found

Method used

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  • Polypropylene fiber reinforced inorganic polymer composite material and preparation method thereof
  • Polypropylene fiber reinforced inorganic polymer composite material and preparation method thereof
  • Polypropylene fiber reinforced inorganic polymer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] Accurately weigh 1500g of slag, and use this as the basis of measurement (100%); adopt the external blending method, the dosage of the activator sodium silicate is 11%, and the sodium silicate is dissolved in quantitative water, and the water-slag ratio (w / c)= 0.31. Zero content polypropylene bundled monofilament fibers (for reference). Put the slag into a double-rotation and double-speed slurry mixer for stirring and dispersing; add the sodium silicate aqueous solution and stir; stir at a high speed to form a uniformly mixed slurry, and put the slurry into a 40mm×40mm×160mm iron triple mold. Vibrate on a plastic sand vibrating table and scrape it flat with a scraper to obtain a formed slag-based inorganic polymer composite material. The initial setting time of the sample is 109 minutes, and the final setting time is 332 minutes.

[0111] The molded specimens were cured in a standard curing box for 24 hours, and after demoulding, they were cured in a standard curing b...

Embodiment 2

[0117] Accurately weigh 1500g of slag, and use this as the basis of measurement (100%); adopt the external mixing method, and the dosage of activator sodium silicate is 11%; dissolve sodium silicate into quantitative water; water-slag ratio (w / c)= 0.31. The dosage of polypropylene fiber is 0.024%. The polypropylene fiber is pre-dispersed in the slag, and then placed in a double-rotation double-speed pulp mixer for stirring and dispersing; the sodium silicate aqueous solution is added for stirring; high-speed stirring forms a uniformly mixed slurry , The slurry is packed into an iron triple mold of 40mm×40mm×160mm. Vibrate on a plastic sand vibrating table and scrape it flat with a scraper to obtain a formed organic fiber reinforced slag-based inorganic polymer composite material.

[0118] The molded specimens were cured in a standard curing box for 24 hours, and after demoulding, they were cured in a standard curing box for 3 days (3d), 7 days (7d), 28 days (28d) and other di...

Embodiment 3

[0124] All preparation processes are the same as in Example 2. Only change the PP fiber content to 0.036%, the results are shown in Table 5 and Table 6.

[0125] Table 5: Compressive strength of PP fiber reinforced slag-based inorganic polymer composites

[0126]

[0127] Table 6: Flexural strength of PP fiber reinforced slag-based inorganic polymer composites

[0128]

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Abstract

The invention discloses a polypropylene fiber reinforced inorganic polymer composite material and a preparation method thereof. Polypropylene beam-like monofilament fiber and sodium silicate are added in slag, and the mixture is excited by the sodium silicate to prepare the composite material; the adding amount of the polypropylene beam-like monofilament fiber is 0.024 to 0.06 percent of the weight of the slag; and the adding amount of sodium silicate is 11 percent of the weight of the slag. The preparation method comprises the following steps: dispersing the polypropylene beam-like monofilament fiber in the formula ratio in the slag at the room temperature; putting the mixture in a double-rotation double-speed purified paste stirrer for stirring; adding a water solution of sodium silicate in the mixture and evenly stirring the mixture to form an evenly mixed paste, wherein the ratio of water to the slag is 0.31; and forming the paste , putting the paste in a standard curing box for curing, and testing the compressive strength and the flexural strength of the paste. Compared with the slag inorganic polymer, the maximum flexural strength of the composite material at 28d is increased by 5.4 MPa, and the maximum compressive strength of the composite material at 28dis increased by 17.7 MPa. The preparation process has the advantages of easy operation, unnecessary heating and no three-waste emission, so the preparation process is a green preparation process.

Description

technical field [0001] The invention belongs to the preparation of fiber-reinforced inorganic composite materials, and in particular relates to a polypropylene fiber-reinforced inorganic polymer composite material and a preparation method thereof. Background technique [0002] Slag is industrial waste slag discharged during the ironmaking process, and granulated blast furnace slag is a by-product produced by iron and steel enterprises in the process of smelting pig iron from iron ore. The molten slag is lighter than the molten iron, floats on the upper part of the molten iron in the blast furnace, and forms slag after flowing out. The blast furnace slag melt with higher energy is rapidly cooled by water quenching to form potentially active water quenched blast furnace slag. According to incomplete statistics, the amount of slag discharged from iron factories in my country is about 100 million tons every year. The discharge and accumulation of these waste residues not only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B16/06
CPCC04B28/008C04B28/26Y02P40/10Y02W30/91C04B16/0633C04B40/0028C04B18/141
Inventor 张耀君李圣徐德龙杨东峰徐国明王宝强刘厚存王楠王亚超
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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