High-performance polymer composite material and application thereof

Abstract

The invention discloses a high-performance polymer composite material, which comprises the following components in percentage by weight: 80 to 95 percent of polyvinyl alcohol, 5 to 12 percent of nano filler, 0.1 to 3 percent of coupling agent and 0.1 to 2 percent of auxiliary agent, the nanofiller comprises boron nitride, graphene, polystyrene nanospheres and metal oxide nanoparticles, the coupling agent comprises a silane coupling agent, and the auxiliaries comprise a reinforcing and toughening agent and a filling agent. Compared with the prior art, the high-performance polymer composite material and the application thereof have the advantages that the high-performance polymer composite material is excellent in mechanical property and high in functionality.

Description

Technical Field

[0001] The present invention relates to the technical field of composite materials, in particular to a high-performance polymer composite material and application thereof. Background Art

[0002] Polymers are widely used because of their rich variety, stable chemical properties, and high specific strength, such as polyethylene plastics used to make daily necessities, nylon used to make clothing, and rubber used to make vehicle tires.

[0003] At present, common high-performance heat-resistant polymers mainly include polytetrafluoroethylene, polyetheretherketone, polyphenylene sulfide, polyimide and high-temperature resistant epoxy resin, and the fillers used for friction and wear resistant polymer-based composite materials mainly include rubber elastomers and inorganic wear-resistant fillers. However, rubber fillers have disadvantages such as high cost and complex preparation process, while inorganic wear-resistant fillers generally have disadvantages such as high density, poor compatibility with resin, easy segregation and poor dispersibility. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a high-performance polymer composite material with excellent mechanical properties and strong functionality and its application.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a high-performance polymer composite material, comprising polyvinyl alcohol, nanofiller, coupling agent and auxiliary agent, wherein the weight ratio of each component is 80-95% of polyvinyl alcohol, 5-12% of nanofiller, 0.1-3% of coupling agent, and 0.1-2% of auxiliary agent;

[0006] The nano filler includes boron nitride, graphene, polystyrene nano balls and metal oxide nano particles, the coupling agent includes a silane coupling agent, and the auxiliary agent includes a reinforcing and toughening agent and a filler.

[0007] As an improvement, the weight ratio of the components is 85-90% of polyvinyl alcohol, 8-10% of nano filler, 0.1-1% of coupling agent, and 0.1-0.5% of auxiliary agent.

[0008] As an improvement, the weight ratio of the components is 90% polyvinyl alcohol, 9% nano filler, 0.8% coupling agent, and 0.2% auxiliary agent.

[0009] The second aspect of the present invention discloses the application of high-performance polymer composite materials in lightweight wear-resistant materials.

[0010] The third aspect of the present invention discloses the application of high-performance polymer composite materials in electrical insulation materials.

[0011] The advantages of the present invention over the prior art are as follows: the polyvinyl alcohol in the present invention has good processing performance, can be processed into products of various shapes and sizes by injection molding, extrusion, molding and other methods, and is convenient for processing; at the same time, the mechanical properties are further increased by combining with nano fillers, the strength and toughness of the composite material are significantly enhanced, the interface debonding and stress concentration phenomena are avoided, and the application is convenient. DETAILED DESCRIPTION

[0012] References to embodiments of the present invention will now be provided in detail, one or more examples of which are described below. Each example is provided as an explanation rather than a limitation of the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made to the present invention without departing from the scope or spirit of the present invention. For example, a feature illustrated or described as part of one embodiment may be used in another embodiment to produce a further embodiment.

[0013] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the description of the present invention, the meaning of "several" is at least one, such as one, two, etc., unless otherwise clearly and specifically defined.

[0014] Except as shown in the operating examples or otherwise indicated, all numbers used in the specification and claims to indicate the amount of ingredients, physicochemical properties, etc. are understood to be adjusted by the term "about" in all cases. For example, therefore, unless otherwise indicated, the numerical parameters listed in the above specification and the attached claims are approximate values, and those skilled in the art can use the teachings disclosed herein to seek to obtain the desired properties and appropriately change these approximate values. The use of numerical ranges expressed as endpoints includes all numbers within the range and any range within the range, for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4 and 5, etc.

[0015] As shown in combination, a high-performance polymer composite material includes polyvinyl alcohol, nanofiller, coupling agent and additives, wherein the weight ratio of each component is 80-95% of polyvinyl alcohol, 5-12% of nanofiller, 0.1-3% of coupling agent, and 0.1-2% of additives.

[0016] When in use, the nano filler includes boron nitride, graphene, polystyrene nano spheres and metal oxide nano particles, the coupling agent includes a silane coupling agent, and the auxiliary agent includes a reinforcing and toughening agent and a filler.

[0017] In one embodiment, the weight ratio of each component is 85-90% of polyvinyl alcohol, 8-10% of nano filler, 0.1-1% of coupling agent, and 0.1-0.5% of auxiliary agent.

[0018] In one embodiment, the weight ratio of each component is 90% polyvinyl alcohol, 9% nano filler, 0.8% coupling agent, and 0.2% auxiliary agent.

[0019] A certain amount of polyvinyl alcohol is selected as the base material, nano fillers, coupling agents and additives are added, stirred, melt blended, and the melt is processed into products of desired shape and size by injection molding, extrusion molding, and compression molding. After molding, heat treatment is performed to eliminate internal stress and improve crystallinity.

[0020] Finished products can be selected including applications in lightweight wear resistant materials and electrical insulation materials.

[0021] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0022] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0023] The present invention and its implementation methods are described above, and such description is not restrictive. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design structures and embodiments similar to the technical solution without creativity, which should all fall within the protection scope of the present invention.

Claims

1. A high performance polymer composite material, Features: It comprises polyvinyl alcohol, nano filler, coupling agent and auxiliary agent, wherein the weight ratio of each component is 80-95% of polyvinyl alcohol, 5-12% of nano filler, 0.1-3% of coupling agent and 0.1-2% of auxiliary agent; The nano filler includes boron nitride, graphene, polystyrene nano balls and metal oxide nano particles, the coupling agent includes a silane coupling agent, and the auxiliary agent includes a reinforcing and toughening agent and a filler.

2. A high performance polymer composite material according to claim 1, Features: The weight ratio of the components is 85-90% of polyvinyl alcohol, 8-10% of nano filler, 0.1-1% of coupling agent and 0.1-0.5% of auxiliary agent.

3. A high performance polymer composite material according to claim 1, Features: The weight ratio of the components is 90% of polyvinyl alcohol, 9% of nano filler, 0.8% of coupling agent and 0.2% of auxiliary agent.

4. Application of the high-performance polymer composite material according to claim 1 in lightweight wear-resistant materials.

5. Use of the high performance polymer composite material according to claim 1 in electrical insulating materials.