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High-performance nano-composite material and preparation method thereof

A nano-composite material and high-performance technology, applied in the field of material science, can solve problems such as strong corrosion and irritation, limit the application of composite materials, and side reactions, and achieve the goals of easy operation, development of application value and application range, and improvement of toughness Effect

Inactive Publication Date: 2012-08-01
贵州省复合改性聚合物材料工程技术研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of organic modification, side reactions are unavoidable, free monomers remain in the polymer, and some multifunctional compounds are highly corrosive and irritating, which limits the application of composite materials

Method used

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  • High-performance nano-composite material and preparation method thereof
  • High-performance nano-composite material and preparation method thereof
  • High-performance nano-composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 of the present invention: the preparation of high-performance nanocomposite material, calculate by weight, get 100 parts of high-density polyethylene, 2 parts of hydrotalcites and 20 parts of ethylene acrylic acid copolymers standby; Dry in a blast drying oven at 80°C for 16 hours, then fully mix the ethylene acrylic acid copolymer and hydrotalcite in a high-speed mixer for 5 minutes, extrude and granulate through a twin-screw extruder to obtain ethylene acrylic acid / hydrotalcite masterbatches, Then dry the ethylene acrylic acid / hydrotalcite masterbatch at 80°C for 16 hours, mix the dried ethylene acrylic acid / hydrotalcite masterbatch with high-density polyethylene, and extrude through a twin-screw extruder to obtain high-performance high-density polyethylene. Ethylene / hydrotalcite nanocomposite material; during the extrusion process, the screw speed of the twin-screw extruder is 300 rpm, and the extrusion temperature is controlled at 170-205°C.

Embodiment 2

[0025] Embodiment 2 of the present invention: the preparation of high-performance nano-composite material, calculate by weight, get 100 parts of high-density polyethylene, 4 parts of hydrotalcite and 20 parts of ethylene acrylic acid copolymer standby; Dry in a blast drying oven at 80°C for 16 hours, then fully mix the ethylene acrylic acid copolymer and hydrotalcite in a high-speed mixer for 5 minutes, extrude and granulate through a twin-screw extruder to obtain ethylene acrylic acid / hydrotalcite masterbatches, Then dry the ethylene acrylic acid / hydrotalcite masterbatch at 80°C for 16 hours, mix the dried ethylene acrylic acid / hydrotalcite masterbatch with high-density polyethylene, and extrude through a twin-screw extruder to obtain high-performance high-density polyethylene. Ethylene / hydrotalcite nanocomposite material; during the extrusion process, the screw speed of the twin-screw extruder is 300 rpm, and the extrusion temperature is controlled at 170-205°C.

Embodiment 3

[0026] Embodiment 3 of the present invention: the preparation of high-performance nanocomposite material, calculate by weight, get 100 parts of high-density polyethylene, 6 parts of hydrotalcites and 20 parts of ethylene acrylic acid copolymers standby; Dry in a blast drying oven at 80°C for 16 hours, then fully mix the ethylene acrylic acid copolymer and hydrotalcite in a high-speed mixer for 5 minutes, extrude and granulate through a twin-screw extruder to obtain ethylene acrylic acid / hydrotalcite masterbatches, and then Dry the ethylene acrylic acid / hydrotalcite masterbatch at 80°C for 16 hours, mix the dried ethylene acrylic acid / hydrotalcite masterbatch with high-density polyethylene, and extrude through a twin-screw extruder to obtain high-performance high-density polyethylene. Ethylene / hydrotalcite nanocomposite material; during the extrusion process, the screw speed of the twin-screw extruder is 300 rpm, and the extrusion temperature is controlled at 170-205°C.

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Abstract

The invention discloses a high-performance nano-composite material and a preparation method thereof. The high-performance nano-composite material comprises the following components in part by weight: 100 parts of high-density polyethylene, 2 to 10 parts of hydrotalcite and 20 parts of ethylene-acrylic acid copolymer. Ethylene and acrylic acid are used as a compatilizer and a toughening agent, so that the contradiction between the rigidity and the toughness of the composite material is resolved, and the toughness of the prepared high-density polyethylene / hydrotalcite nano-composite material can be greatly improved; in this way, the hydrotalcite which is not organically modified can be adopted, so that the production cost is reduced, and side reactions are avoided in melt blending; and the preparation method is simple and easy operate, and can be used for industrialized production, and the application value and application range of the high-density polyethylene / hydrotalcite nano-composite material are further developed.

Description

technical field [0001] The invention relates to the field of material science, in particular to a polymer material and a preparation method thereof. Background technique [0002] Polyolefin / hydrotalcite nanocomposites have attracted widespread attention because of their superior mechanical properties, barrier properties, thermal stability and flame retardancy compared with traditional composite materials. At present, in the preparation of high-density polyethylene (HDPE) / hydrotalcite (LDH) nanocomposites, organically modified LDH is usually added, such as sodium dodecylsulfonate, itaconic acid and other intercalated LDH. However, side reactions inevitably occur during the organic modification process, free monomers remain in the polymer, and some multifunctional compounds are highly corrosive and irritating, which limits the application of composite materials. More importantly, the improvement of rigidity and flame retardancy of composite materials is often at the expense o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K3/26
Inventor 于杰张欢秦军田瑶珠何敏罗筑鲁圣军
Owner 贵州省复合改性聚合物材料工程技术研究中心
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