High-rigidity high-toughness composite material applied to periphery of automobile engine and preparation method thereof

Abstract

The invention discloses a high-rigidity high-toughness composite material applied to the periphery of an automobile engine and a preparation method thereof. The high-rigidity high-toughness compositematerial comprises the following raw materials by weight: 54 to 60% of recovered waste carpet material, 0 to 10% of a toughening agent, 30 to 35% of glass fibers, 0.1 to 1% of a lubricant, 0.5 to 1% of an auxiliary toughening agent and 0.1 to 1% of an anti-oxidant. Compared with the prior art, the high-rigidity high-toughness composite material provided by the invention has the following advantages: an ethylene maleic anhydride copolymer is used as the auxiliary toughening agent, and reactive functional groups in the copolymer of ethylene and maleic anhydride are reacted with maleic anhydrideused as the toughening agent of, a silane coupling agent on the surfaces of the glass fibers and a terminal functional group of nylon so as to form a micro-crosslinked structure; and thus, the material is endowed with mechanical properties, aging properties, freezing liquid resistance and the like equivalent to a newly-prepared material, and is allowed to meet the harsh requirements of the periphery of the automobile engine on nylon materials.

Description

technical field [0001] The present invention relates to reusing the recycled carpet raw materials, and through the formula, involves endowing the material with excellent mechanical properties, aging properties, freezing liquid resistance, chemical resistance and other properties, so as to meet its application requirements in the peripheral parts of automobile engines . Background technique [0002] With the development of society, more and more countries around the world pay more and more attention to the protection of resources and the environment. The repeated application of materials is a good way to solve the "resource crisis" and "environmental pollution". The characteristics of light weight, low price and excellent performance of polymer materials have been widely used in various industries and in all aspects of clothing, food, housing and transportation. However, polymer materials have also brought serious environmental problems when they are widely used. According to...

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Problems solved by technology

The characteristics of light weight, low price and excellent performance of polymer materials have been widely used in various industries and in all aspects of clothing, food, housing and transportation. However, polymer materials have also brought serious environmental problems when they are widely used. According to relevant statistics, Waste polymer materials account for about 70% of the annual plastic production. If not processed in time, a large amount of waste polymer materials will cause very serious environmental pollution. For example, the "white pollution" that has become increasingly prominent this year is due to the inability of waste plastics. Timely processing of the generated waste will pollute the environment while wasting resources, causing harm to the living environment of human beings.

[0003] At present, the main treatment methods for polymer waste are incineration treatment and deep landfill treatment. The above methods will cause environmental pollution problems. The recycling and reuse of polymer materials and the development of environmentally friendly polymer materials are the solution to the above problems. The best way, and under the increasingly prominent situation of "energy crisis", the large-scale reuse of polymer materials is not only beneficial to environmental protection, but also crucial to solving energy problems

[0004] Nylon, as the largest engineering plastic used at present, is widely used in automobiles, electronic appliances, spinning and other fields. Due to the aging problem of recycled nylon materials in the process of first processing and use, the performance of materials will decline. If you want to reuse recycled materials, especially for applications around automobile engines with demanding materials, improving its performance is a prerequisite. Nylon raw materials are recycled from carpets. Due to the decline in molecular weight during the aging process during use, recycling The presence of impurities in carpet nylon raw materials will reduce its performance, especially the toughness of the material is very poor, how to modify recycled nylon materials to meet the requirements of auto parts for nylon materials becomes the key to its reuse

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