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Method for preparing polymer modified glass fibers

A glass fiber and polymer technology, applied in the field of preparation of functional materials, can solve the problems of low tensile strength, poor ductility, restrict promotion and application, etc., and achieve the effect of reducing the demand for energy consumption and mild reaction conditions

Active Publication Date: 2016-07-20
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, in the world, concrete materials are widely used in various fields of national economic construction due to their superior mechanical properties and use functions, but they have defects such as low tensile strength and poor ductility.
Although steel fiber reinforced concrete has overcome these defects to a certain extent and achieved a series of results, its popularization and application in engineering has been greatly restricted due to the limitation of cost and construction technology.

Method used

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  • Method for preparing polymer modified glass fibers
  • Method for preparing polymer modified glass fibers

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A method for preparing polymer-modified glass fibers, which mainly includes the preparation of precursors-reagent mixing-gas deoxygenation-polymerization reaction-washing and drying processes, the specific preparation scheme is as follows:

[0029] (1) Preparation of precursor

[0030] Weigh 0.1g of polyvinyl alcohol into a 250mL three-necked flask, add 50mL of secondary water, and then place it in an environment of 95°C for ultrasonic treatment to dissolve it completely; after it is completely dissolved, cool to room temperature for use.

[0031] (2) Reagent mixing

[0032] Take 3mmol of methacrylic acid, 3mL of ethylene glycol dimethacrylate, 12mL of toluene, and 15mg of azobisisobutyronitrile into the solution prepared in step (1), and mix well.

[0033] (3) Deoxygenation by venting gas

[0034] Weigh 5 g of short glass fiber and add it to the solution obtained in step (2), and deoxygenate with nitrogen for 10 minutes; vacuumize the three-neck flask after deoxygena...

Embodiment 2

[0040] The preparation steps are the same as Example 1, the difference is: Step (1) Weigh 0.1g of polyvinyl alcohol into a 250mL three-neck flask, add 50mL of secondary water, and then place it in an environment of 95°C with magnetic stirring to dissolve it completely; After all dissolved, cool to room temperature for later use.

Embodiment 3

[0042] The preparation steps are the same as in Example 1, except that the glass fiber in step (3) is a combination of long fibers and short fibers at a mass ratio of 1:1.

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Abstract

The invention discloses a method for preparing polymer modified glass fibers and belongs to the technical field of functional material preparation.The method comprises the steps of preparation of a precursor, mixing of reagents, introduction and deoxygenization of gas, conducing of a polymerization reaction and washing and drying.The surfaces of the polymer modified glass fibers prepared through the method are uneven, so that the surface roughness of the glass fibers is greatly increased.The polymerization reaction process is conducted at room temperature through an oscillation reaction, the reaction conditions are mild, the need for energy consumption is reduced, the requirement for sustainable development is met, and meanwhile the damage of magnetic stirring or ultrasonic treatment in the reaction process to the structure of the glass fibers is avoided.The method has wide application prospects on the aspects of manufacturing of high-performance concrete and composites.

Description

Technical field [0001] The present invention involves a method of preparation of glass fiber with polymerization, which is a field of preparation of functional materials. Background technique [0002] Glass fiber has a small elongation rate, larger than the surface area, corrosion resistance, high temperature resistance, non -combustion, good chemical stability, good hygroscopic resistance, and high tensile strength.Inorganic non -metal materials.With the continuous development of composite materials towards high performance and multifunctionalization, advanced manufacturing technology, low -cost and enlarged application, higher requirements for the cost -effectiveness of glass fiber enhancement of substrate materials. In recent years, high -performance glass fibers of different brands have continuedThe launch has promoted the promotion and application of composite materials in the fields of new energy, transportation, construction, chemical industry and other fields, and is cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/28C03C25/16
CPCC03C25/16C03C25/28
Inventor 张彦张丽娜李丽葛慎光于京华魏金娥周金龙颜梅
Owner UNIV OF JINAN