Composite material containing modified basalt fiber and polymer and preparation method thereof

A technology of basalt fiber and composite material, which is used in building thermal insulation materials, building structures, building components, etc., can solve the problems of difficulty in uniform dispersion of modified basalt fibers, high surface energy of specific surface area, easy agglomeration, etc., and achieves easy molding. , the effect of high output and wide distribution of raw materials

Active Publication Date: 2013-04-17
长沙北美孚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

This will bring adverse consequences and even serious losses, so it is extremely important to develop new materials with effective high strength that can eliminate static electricity
[0011] One of the problems that people face in the preparation of polymer composites containing modified basalt fibers is that it is difficult to uniformly disperse the modified basalt fibers, because the diameter of the modified basalt fibers is micron-scale and has the same properties as other microns. Powders have similar surface effects and small size effects, so they have larger specific surface area and higher surface energy, and are prone to problems such as agglomeration

Method used

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  • Composite material containing modified basalt fiber and polymer and preparation method thereof
  • Composite material containing modified basalt fiber and polymer and preparation method thereof
  • Composite material containing modified basalt fiber and polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Preparation of modified basalt fiber: Intermittent flocculent basalt fiber is made by multi-axis centrifugation under the action of electromagnetic effect after melting basalt as the main raw material at 1350 ℃ ~ 1680 ℃. The modified basalt fiber is Al 2 o 3 The mass content is 6%-18%, the mass content of ferrous oxide and ferric oxide is 9%-16%, the acidity coefficient is 1.2-4.8; and the average diameter is 1 micron-8 microns﹑length / diameter≥ 8. The fiber content is ≥ 65%, the bulk density is 70 g / L-380 g / L, and the particle size is 3 mm-8 mm flocculent fiber clusters;

[0058] Preparation method of composite material:

[0059] 1295 grams of polycarbonate, 50 grams of sodium lauryl sulfate and 713 grams of the above-mentioned modified basalt fiber with an acidity coefficient of 2.3 are made into a uniform mixture in 5600 grams of N-methyl-2 pyrrolidone by means of stirring and ultrasonic waves , then add 260 grams of deionized water to the above mixture, the compou...

Embodiment 2

[0064] First 1295 grams of polymethyl methacrylate, 5 grams of sodium lauryl sulfate and 780 grams of acidity coefficient are the modified basalt fibers described in embodiment 1 of 1.2 under the effect of stirring and ultrasonic waves in N-methyl- 2. Make a uniform mixed solution in 5600 grams of pyrrolidone, then add 260 grams of methanol in the above mixed solution, and the polymethyl methacrylate / modified basalt fiber composite will be separated out, and it will be separated from the solvent and processed at 60 Drying in a vacuum oven at ℃-90℃ is the polymethyl methacrylate composite material with a modified basalt fiber content of 60%. Recorded as BMF / NT836 composite material. Result is with embodiment 1.

[0065] Application of composite materials:

[0066] Heat 1000 grams of No. 70 road traffic asphalt to 165 ° C, spray the asphalt into 120 grams of the BMF / NT836 composite material prepared in Example 2, and add 65 grams of polyethylene at the same time; It is melted...

Embodiment 3

[0068] First utilize stirring and ultrasonic wave to make 1295 grams of polystyrene, 5 grams of KH-550 silane coupling agent and embodiment 1 described 780 grams of modified basalt fibers with an acidity coefficient of 3.6 in 5600 grams of chloroform to make a uniform mixed solution , and then add 260 grams of absolute ethanol to the above mixture, and the polystyrene / modified basalt fiber composite will be precipitated, and the composite and the solvent will be separated and dried in a vacuum oven at 60°C-90°C to obtain the modified The polystyrene composite material with basalt fiber content of 60% is recorded as BMF / NT936 composite material. Result is with embodiment 1.

[0069] Application of composite materials:

[0070] Heat 1,000 grams of No. 70 road traffic asphalt to 165°C, spray the asphalt into 180 grams of the BMF / NT936 composite material prepared in Example 3 above, and continue heating to 185°C through high shear and kneading. During this period, 43 grams of meth...

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Abstract

The invention provides composite material containing a modified basalt and a polymer and a preparation method thereof, wherein the main components of the composite material contains: 1200-1300 parts of polymer, 700-800 parts of modified basalt fiber, and 5-50 parts of surfactant coupling agent. The method, by means of the mechanical force, supersonic wave and electromagnetic force synthetic effect of the surfactant or coupling agent, comprises: uniformly dispersing the polymer and the modified basalt fiber into a solvent to prepare a uniform and stabile mixture, adding another solvent into the mixture, implementing the cladding or wrapping to the modified basalt fiber while precipitating the polymer from the mixture, and then forming the composite material of the modified basalt fiber containing polymer. The composite material can be used for preparing asphalt with excellent performances, the method has the advantages of low cost, simple operation and easy enlargement, and the method makes it easy for the modified basalt fiber to be uniformly dispersed in the polymer.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and relates to a composite material and a method prepared by a precipitation method using modified basalt fiber and a polymer as raw materials. Background technique [0002] Earth's rocks can be divided into three categories: sedimentary rocks, metamorphic rocks, and igneous rocks. Sedimentary rocks are formed by the weathering of the Earth's surface, carried by wind and water. Metamorphic rocks are minerals that undergo physical and chemical changes and recrystallization under the conditions of high temperature and high pressure in the earth. Igneous rock is a rock formed after magma condenses underground or ejected from the crust, also known as igneous rock. Igneous rocks can be divided into acidic rocks, neutral rocks and basic rocks according to the amount of silica content. Igneous rocks with a silica content of more than 65% are acidic rocks, such as granite and rhyolite; ig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L23/06C08L23/12C08L29/04C08L27/06C08L25/06C08L33/12C08L59/00C08L81/06C08L81/02C08L61/16C08K9/00C08K7/10C08L95/00
Inventor 肖菁
Owner 长沙北美孚新材料科技有限公司
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