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Microcrystalline graphite ore-nylon 6 composite composite material

A technology of microcrystalline graphite and composite materials, which is applied in the field of polymer composite materials and microcrystalline graphite ore-nylon 6 composite composite materials, can solve problems such as increased cost and environmental impact, and achieves low cost, wide distribution and large reserves. Effect

Active Publication Date: 2022-08-02
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, fibers and synthetic fillers need to be synthesized by chemical methods, which not only greatly increases the cost, but also has an impact on the environment to a certain extent

Method used

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  • Microcrystalline graphite ore-nylon 6 composite composite material
  • Microcrystalline graphite ore-nylon 6 composite composite material
  • Microcrystalline graphite ore-nylon 6 composite composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Antistatic, conductive microcrystalline graphite ore-nylon 6 composite material is prepared, and the preparation process is as follows:

[0018] (1) Microcrystalline graphite ore is ground and refined to 1-5 μm, and modified with coupling agent KH550 or KH560. The mass dosage of KH550 or KH560 is 1-2%, and it is dried and used; SEM image of microcrystalline graphite ore after refining treatment like figure 1 As shown; the microcrystalline graphite ore with different carbon content is compounded to obtain the microcrystalline graphite ore powder with different carbon content, wherein the mass content of carbon is: 30%, 40%, 50%, 60%, 70%, 80% and 90%;

[0019] (2) Blend nylon 6 with microcrystalline graphite mineral powder of different contents in step (1), lubricant, anti-aging agent and maleic anhydride graft, and the relative viscosity of nylon 6 is 2.4, 2.8 or 3.4. The mass ratio of aging agent and maleic anhydride graft and each component is shown in Table 1;

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Embodiment 2

[0029] To prepare high-strength microcrystalline graphite ore-nylon 6 composite material, the specific preparation process is as follows:

[0030] (1) The microcrystalline graphite ore is ground and refined to 1-5 μm, modified with coupling agent KH550 or KH560, and dried for use; The microcrystalline graphite ore powder, wherein the mass content of carbon is: 30%, 40%, 50%, 60%, 70%, 80% and 90%; the mass dosage of KH550 or KH560 is 1-2%;

[0031] (2) Compounding the microcrystalline graphite ore with different carbon contents in step (1) and glass fiber or natural minerals to obtain the microcrystalline graphite ore-glass fiber composite or the microcrystalline graphite ore-natural mineral compound with different carbon contents;

[0032] (3) Blend the microcrystalline graphite ore-glass fiber composition or the microcrystalline graphite ore-natural mineral composition in step (2) with nylon 6, lubricant, anti-aging agent, glass fiber or natural mineral, maleic anhydride cop...

Embodiment 3

[0040] To prepare high toughness microcrystalline graphite ore-nylon 6 composite material, the preparation process is as follows:

[0041] (1) The microcrystalline graphite ore is ground and refined to 1-5 μm, modified with coupling agent KH550 or KH560, and dried for use; the microcrystalline graphite ore with different carbon contents is compounded to obtain the microcrystalline graphite ore powder with different carbon contents, among which The mass content of carbon is: 40%, 50% and 90%; the mass dosage of KH550 or KH560 is 1-2%;

[0042] (2) Blend nylon 6 with different contents of microcrystalline graphite mineral powder and lubricant, anti-aging agent and maleic anhydride graft in step (1), and the relative viscosity of nylon 6 is 2.4, 2.8 and 3.4. The mass ratio of aging agent and maleic anhydride graft and each component is shown in Table 6;

[0043] (3) granulating the blend in step (2) through a screw extruder to obtain a high-toughness microcrystalline graphite or...

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Abstract

The invention relates to a microcrystalline graphite ore-nylon 6 composite material. The microcrystalline graphite ore compound is blended with nylon 6, a maleic anhydride graft or copolymer, a lubricant and an anti-aging agent, and is extruded through a screw. It is extruded out of a machine to obtain a microcrystalline graphite ore-nylon 6 composite material. The mass ratio of nylon 6 and microcrystalline graphite ore compound is 20:6-14, the usage amount of lubricant is 0.05-0.02%, and the usage amount of anti-aging agent is 0.03-0.2%. The amount of the maleic anhydride graft is 2 to 15%. The amount of maleic anhydride copolymer used is 2-5%. The carbon mass content of microcrystalline graphite ore is 20-95%. The invention improves the electrical conductivity and mechanical properties of the composite material by blending nylon 6 with microcrystalline graphite mineral powder, glass fiber and natural minerals, and adding modified substances, and obtains microcrystalline graphite with high toughness, high strength and high electrical conductivity. Mine-Nylon 6 composition composite material, reducing costs and expanding the use of composite materials.

Description

technical field [0001] The invention belongs to the technical field of polymer chemicals, and relates to a polymer composite material, in particular to a microcrystalline graphite ore-nylon 6 composite composite material. Background technique [0002] The lightweight of automobiles has very positive significance for saving energy, reducing exhaust emissions, and realizing the sustainable development strategy of my country's automobile industry. Reducing the weight of automobiles is one of the important measures to improve the fuel economy, reduce energy consumption and reduce pollution of automobiles. The amount of plastic in the automobile industry has accounted for 10% to 15% of the total plastic output. There are many kinds of plastics used in automobiles, and polyamide and its composite materials are one of the important ones. Polyamide materials have high mechanical strength, heat resistance, corrosion resistance, fatigue resistance, and excellent processing performance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L55/02C08K13/06C08K9/06C08K5/20C08K3/04
CPCC08L77/02C08L2201/08C08L2201/04C08K2201/001C08L55/02C08K13/06C08K9/06C08K5/20C08K3/04
Inventor 郝振岐苏建海徐伟箭欧恩才陈春凤马好雨
Owner CHINA PETROLEUM & CHEM CORP