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Polymeric composite material and preparation method thereof

A composite material and polymer technology, which is applied in the field of polymer composite materials and its preparation, can solve problems such as waste and filler agglomeration, and achieve the effects of simple and easy operation, good monodispersity and high mechanical properties

Active Publication Date: 2015-01-14
厦门祥福兴科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many research results at present, the use of fillers is mainly at a relatively high content, which is not only wasteful, but also easily causes the problem of filler agglomeration in composite materials

Method used

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  • Polymeric composite material and preparation method thereof
  • Polymeric composite material and preparation method thereof
  • Polymeric composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing a polymer composite material, realized by the following scheme: Accurately weigh 0.004g of graphene, add acetone and ultrasonically disperse it in 39.996g of epoxy resin, and obtain epoxy resin-graphene matrix by ultrasonic for 2 hours material. Weigh 0.1g-7g of the masterbatch, ultrasonically disperse it in 39.9g-30g of epoxy resin to obtain a mixed solution, put the mixed solution together with zirconia balls into a PTFE ball mill tank with a volume of 100ml, each Among them, the mass ratio of zirconia grinding balls to the mixed liquid is 6.25:1, and the diameter of the balls is 1 mm to 4 mm. Put the polytetrafluoroethylene ball mill tank filled with the mixed liquid symmetrically into the planetary ball mill for ball milling at a speed of 300 rpm After 24 hours, a graphene-epoxy resin composite material (filler content obtained: 0.25-17.5 ppm) was obtained.

Embodiment 2

[0039]A method for preparing a polymer composite material, realized by the following scheme: Accurately weigh 0.004g of graphene, add acetone and ultrasonically disperse it in 39.996g of epoxy resin, and pack the mixed solution with zirconia balls after ultrasonication for 30min Put it into a polytetrafluoroethylene ball mill tank with a volume of 100ml. In each portion, the mass ratio of zirconia balls to the mixed solution is 6.25:1, and the diameter of the ball is 1mm to 4mm. The jars were symmetrically put into a planetary ball mill and ball-milled at a speed of 300 rpm for 24 hours to obtain an epoxy resin-graphene masterbatch. Weigh 0.1g-7g of the masterbatch, ultrasonically disperse it in 39.9g-30g of epoxy resin to obtain a mixed solution, put the mixed solution together with zirconia balls into a PTFE ball mill tank with a volume of 100ml, each Among them, the mass ratio of zirconia grinding balls to the mixed liquid is 6.25:1, and the diameter of the balls is 1 mm to...

Embodiment 3

[0043] A method for preparing a polymer composite material is realized through the following scheme: accurately weigh 0.004 g of graphene, disperse it in 39.06 g of unsaturated resin, and obtain an unsaturated resin-graphene masterbatch by ultrasonication for 2 hours. Weigh 0.1g-7g of masterbatch, ultrasonically disperse in 39.9g-30g of unsaturated resin to obtain a mixed solution, put the mixed solution together with zirconia balls into a PTFE ball mill tank with a volume of 100ml, each Among them, the mass ratio of zirconia grinding balls to the mixed liquid is 6.25:1, and the diameter of the balls is 1 mm to 4 mm. Put the polytetrafluoroethylene ball mill tank filled with the mixed liquid symmetrically into the planetary ball mill for ball milling at a speed of 300 rpm After 24 hours, a graphene-unsaturated resin composite material was obtained. (The obtained filler content is: 0.25~17.5ppm).

[0044] The following table 1 is the elastic modulus and tensile properties tabl...

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Abstract

The invention provides a polymeric composite material and a preparation method thereof. In the polymeric composite material, the mass concentration of a filler in a polymeric matrix is 0.1-20ppm, wherein the filler is at least one of graphene, silicon dioxide, carbon nanotube, carbon black, aluminum oxide, zinc oxide, calcium carbonate, titanium dioxide, talcum powder and montmorillonite; and the polymeric matrix is at least one of epoxy resin and unsaturated resin. The preparation method comprises the following steps: uniformly premixing the filler and a proper amount of polymeric matrix to form a master batch, wherein when the polymeric matrix contains epoxy resin, a polymeric medium needs to be added to reduce the viscosity of the polymeric matrix; and taking a proper amount of master batch, diluting the master batch into the polymeric matrix according to the mass concentration ratio of the filler in the polymeric matrix, and uniformly mixing to obtain the polymeric composite material. The polymeric composite material provided by the invention is favorable in monodispersity and high in mechanical property; and the preparation method is simple, easy to operate and easy to realize industrial large-batch production operation.

Description

【Technical field】 [0001] The invention relates to a polymer composite material and a preparation method thereof. 【Background technique】 [0002] Thermosetting resins are a class of polymers with a three-dimensional network structure, usually formed from oligomers or low-molecular compounds containing two or more active functional groups in their molecules through curing and cross-linking reactions in the presence of cross-linking agents or catalysts. Thermosetting resin monomers or prepolymers have excellent flow processing properties, and the cured network structure makes them have excellent physical and mechanical properties, electrical insulation properties, chemical resistance, bonding properties and thermal stability. , Thermosetting resins are widely used in the technical fields of machinery, electronics, aerospace and other fields in the form of adhesives, coatings, potting materials and composite materials. However, due to the high crosslinking density and large int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L101/00C08K3/04C08K3/36C08K3/26C08K7/00C08K3/34C08K3/22
Inventor 陈国华刘莹
Owner 厦门祥福兴科技股份有限公司
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