Polyethylene nano-modified composite and preparing method and application thereof

A nano-modified and composite material technology, applied in the field of polyethylene nano-modified composite materials and its preparation, can solve the problems of poor mechanical properties, general heat and aging resistance, etc., and achieve improved mechanical properties, excellent performance, The effect of good mechanical properties

Inactive Publication Date: 2016-04-13
广州枫叶管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the mechanical properties of the material are not very

Method used

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  • Polyethylene nano-modified composite and preparing method and application thereof
  • Polyethylene nano-modified composite and preparing method and application thereof
  • Polyethylene nano-modified composite and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this embodiment, the polyethylene nano-modified composite material is prepared from a nano-modified masterbatch and polyethylene, the mass ratio of the nano-modified masterbatch to polyethylene is 1:9, and the nano-modified The masterbatch is prepared from the following components by weight:

[0041]

[0042]

[0043] The preparation method is as follows:

[0044] (1) Under nitrogen protection, swell polyethylene, nano-calcium carbonate, nano-silica, silane coupling agent, first monomer, second monomer and initiator at 25°C for 10min, then stir at 100°C After reacting for 0.5 hours, the product was dried to obtain a nano-modified masterbatch;

[0045] (2) Mix the nano-modified masterbatch and polyethylene evenly, and knead in a twin-screw extruder, the preheating temperature of the screw region of the twin-screw extruder is 300°C, and the screw speed is 400r / min, to obtain The polyethylene nano-modified composite material.

Embodiment 2

[0047] In this embodiment, the polyethylene nano-modified composite material is prepared from a nano-modified masterbatch and polyethylene, the mass ratio of the nano-modified masterbatch to polyethylene is 2:8, and the nano-modified The masterbatch is prepared from the following components by weight:

[0048]

[0049] The preparation method is as follows:

[0050] (1) Under nitrogen protection, polyethylene, nano-calcium carbonate, nano-silica, silane coupling agent, first monomer, second monomer and initiator were swollen at 20°C for 15min, and then stirred at 80°C After reacting for 5 hours, the product was dried to obtain a nano-modified masterbatch;

[0051] (2) Mix the nano-modified masterbatch and polyethylene evenly, and knead in a twin-screw extruder, the preheating temperature of the screw area of ​​the twin-screw extruder is 200°C, and the screw speed is 300r / min, to obtain The polyethylene nano-modified composite material.

Embodiment 3

[0053] In this embodiment, the polyethylene nano-modified composite material is prepared from a nano-modified masterbatch and polyethylene, the mass ratio of the nano-modified masterbatch to polyethylene is 3:8, and the nano-modified The masterbatch is prepared from the following components by weight:

[0054]

[0055] The preparation method is as follows:

[0056] (1) Under nitrogen protection, swell polyethylene, nano-calcium carbonate, nano-silica, silane coupling agent, first monomer, second monomer and initiator at 10°C for 20min, then stir at 90°C After reacting for 3 hours, the product was dried to obtain a nano-modified masterbatch;

[0057] (2) Mix the nano-modified masterbatch and polyethylene evenly, and knead in a twin-screw extruder, the preheating temperature of the screw region of the twin-screw extruder is 250°C, and the screw speed is 250r / min, to obtain The polyethylene nano-modified composite material.

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Abstract

The invention provides a polyethylene nano-modified composite and a preparing method and application thereof. According to the polyethylene nano-modified composite, polyethylene, nano calcium carbonate, nano silica, a silane coupling agent, a first monomer, a second monomer and an initiator are adopted for preparing and obtaining a nano-modified master batch; due to the fact that nano calcium carbonate and nano silica are dispersed in the nano-modified master batch, the nano-modified master batch has good mechanical performance; in addition, the compatibility of nano calcium carbonate and nano silica with the polyethylene material can be enhanced through the silane coupling agent, and thus nano calcium carbonate and nano silica can have a better dispersing effect. The polyethylene nano-modified composite with an intercalation structure is obtained through an in-situ grafting and intercalation technology, nano composite of polyethylene and inorganic matter is achieved, and thus the mechanical property, the heat resistance, the aging resistance and the like of polyethylene plastic are effectively improved.

Description

technical field [0001] The invention belongs to the field of nano-modified composite materials, and relates to a polyethylene nano-modified composite material and its preparation method and application. Background technique [0002] Due to its light weight and non-toxicity, polyethylene has the advantages of excellent dielectric properties, chemical stability and corrosion resistance, and is cheap and easy to form and process. It can be widely used in electrical appliances, chemicals, food, machinery and other industries. With the continuous development of science and technology, higher requirements are put forward for the performance of polyethylene materials, and it is hoped that it will have more excellent mechanical properties and heat and aging resistance. Therefore, the modification of polyethylene is currently a research hotspot. [0003] CN103881187A discloses a nano-carbon fiber modified polyethylene material, whose components are proportioned by mass percentage: p...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/06C08K3/26C08K3/36C08K5/54C08J3/22C08F255/02C08F222/08C08F212/08C08F220/06
CPCC08L23/06C08F255/02C08J3/226C08J2323/06C08J2451/06C08K2201/003C08K2201/011C08L2201/08C08L2203/18C08L2207/062C08L2207/066
Inventor 何建兴杨文思陈慈香周爱军岳红辉
Owner 广州枫叶管业有限公司
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