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Nanocellulose enhanced and toughened MC nylon composite and preparation method thereof

A technology of nylon composite materials and nanocellulose, which is applied in the field of preparation of polymer nanocomposites, can solve the problems that are difficult to cooperate with high-end application fields, limit the development and application of MC nylon, and achieve the improvement of physical and mechanical properties and the improvement of nanocellulose Content, the effect of high physical and mechanical properties

Inactive Publication Date: 2017-11-17
扬州金尔泽科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a significant gap between the technical level of MC nylon in my country and the international level, especially in terms of high performance and low cost of MC nylon, which restricts the development and application of MC nylon in my country, and it is difficult to cooperate with my country's rapid development of new energy vehicles, Demand for high-end applications such as rail transit, aerospace, and electrical equipment

Method used

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  • Nanocellulose enhanced and toughened MC nylon composite and preparation method thereof
  • Nanocellulose enhanced and toughened MC nylon composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A nanocellulose reinforced and toughened MC nylon composite material is made of the following raw materials in parts by weight: 38 parts of caprolactam monomer, 56.7 parts of nanocellulose, 0.3 parts of phosphorous acid, and 4 parts of sodium phosphate. The nanocellulose is a nanoscale cellulose product prepared from natural cotton and wood pulp cellulose.

[0017] The preparation method of the above-mentioned nanocellulose reinforced and toughened MC nylon composite material is to take caprolactam monomer, nanocellulose, phosphorous acid and sodium phosphate, add phosphorous acid and nanocellulose after melting the caprolactam monomer, and use ultrasonic radiation to mix evenly, Vacuum dehydrate the mixture under the condition of -0.1MPa for 15 minutes. After the dehydration is completed, add sodium phosphate to the mixture, preheat the mold to 150°C, cast the mixture after adding sodium phosphate into the mold, and cool it off after 15 minutes. mold.

Embodiment 2

[0019] A nanocellulose reinforced and toughened MC nylon composite material is made of the following raw materials in parts by weight: 10 parts of caprolactam monomer, 10 parts of nanocellulose, 0.2 parts of ethanedicarboxylic anhydride, and 2 parts of sodium nucleotide. The nanocellulose is a nanoscale cellulose product prepared from natural cotton and wood pulp cellulose.

[0020] The preparation method of the above-mentioned nanocellulose reinforced and toughened MC nylon composite material is to take caprolactam monomer, nanocellulose, ethanedicarboxylic anhydride and sodium nucleotides, add ethanedicarboxylic anhydride and nanofibers after melting the caprolactam monomer Use ultrasonic radiation to mix evenly. The mixture is vacuum dehydrated at -0.1MPa for 3 minutes. After dehydration, sodium nucleotides are added to the mixture, and the mold is preheated to 140°C. The mixture after adding the cocatalyst The material is poured into the mold, cooled and demolded after 3 m...

Embodiment 3

[0022] A nanocellulose reinforced and toughened MC nylon composite material is made of the following raw materials in parts by weight: 90 parts of caprolactam monomer, 75 parts of nanocellulose, 0.4 parts of calcium hypophosphite, and 5 parts of acetyl caprolactam. The nanocellulose is a nanoscale cellulose product prepared from natural cotton and wood pulp cellulose.

[0023] The preparation method of the above-mentioned nanocellulose reinforced and toughened MC nylon composite material is to take caprolactam monomer, nanocellulose, catalyst and cocatalyst, add calcium hypophosphite and nanocellulose after melting the caprolactam monomer, and use ultrasonic radiation to mix evenly, Vacuum dehydrate the mixture under the condition of -0.1MPa for 20 minutes. After the dehydration is completed, add acetyl caprolactam to the mixture, preheat the mold to 160°C, cast the mixture after adding the co-catalyst into the mold, and cool it after 30 minutes demoulding.

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Abstract

The invention discloses a nano-cellulose reinforced and toughened MC nylon composite material and a preparation method thereof. It is made of the following raw materials in parts by weight: 10-90 parts of caprolactam monomer, 10-75 parts of nanocellulose, 0.2-0.4 parts of catalyst, and 2-5 parts of cocatalyst. The invention adopts nanocellulose as reinforcement, and caprolactam monomer is the resin matrix, and utilizes the low viscosity and good fluidity of the caprolactam solution to ensure the infiltration of nanocellulose by caprolactam, greatly increasing the nanocellulose content of the product, and having a high Physical and mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of preparation of polymer nanocomposite materials, and in particular relates to a nanocellulose reinforced and toughened MC nylon composite material and a preparation method thereof. Background technique [0002] As we all know, air pollution and energy shortage are two major problems faced by major industries in the world during the development process. Therefore, the use of engineering plastics with low density and easy recycling is an important measure for energy saving, emission reduction, cost reduction and efficiency increase. As one of engineering plastics, Monomer casting nylon (MC nylon) is widely used in automobiles, electrical equipment, machinery, etc. because of its light weight, high strength, wear resistance, self-lubrication and other unique properties. industry. [0003] With the acceleration of the lightweight of automobiles, the high performance of electrical equipment, and the low cost o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/14C08G69/16C08L77/02C08L1/02
CPCC08G69/14C08G69/16C08L1/02C08L77/02C08L2201/08
Inventor 沈国春朱海霞邵自强胡国华张超
Owner 扬州金尔泽科技有限公司
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