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Polyolefin material with surface grafted polymer and preparation method and application of polyolefin material

A technology of surface grafting and polyolefin, which is applied in the field of surface-grafting polymer polyolefin material and its preparation, can solve the problems of poor adhesion between modifier and polyolefin, and achieve stable surface performance and low economic cost. , the effect of mild reaction conditions

Inactive Publication Date: 2020-01-17
ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of and its preparation method and application in order to overcome the defect of poor bonding performance between traditional modifier and polyolefin

Method used

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  • Polyolefin material with surface grafted polymer and preparation method and application of polyolefin material
  • Polyolefin material with surface grafted polymer and preparation method and application of polyolefin material
  • Polyolefin material with surface grafted polymer and preparation method and application of polyolefin material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1) Place 1g of polyethylene powder in a plasma device, and under a vacuum of 200mTorr, pass argon gas into it for glow discharge, adjust the plasma power to 150W, the atmosphere pressure to 250mTorr, and the plasma treatment time for 1min to make the polyethylene powder Generate free radicals on the surface of the material.

[0050] 2) Place the treated polyethylene powder in the air for 30 minutes to convert surface free radicals into peroxides.

[0051] 3) Put 1 g of the treated polyethylene powder and 3 g of hexafluorobutyl acrylate in 3 ml of 1,4-dioxane, blow in an inert gas to remove the air, and put it in an oil bath at 80° C. for 24 hours for polymerization.

[0052] 4) Wash the polymerized product with the solvent 1,4-dioxane to remove unreacted monomers and homopolymers generated by the reaction, and dry it in a vacuum oven at 40°C for 24 hours to obtain a polyethylene surface-grafted polymer. Powder.

[0053] figure 1 , figure 2 Infrared spectrogram and ...

Embodiment 2

[0056] 1) Place 1 g of polyethylene powder in a plasma device, and under a vacuum of 200 mTorr, pass argon gas into it for glow discharge, adjust the plasma power to 50 W, the atmosphere pressure to 250 mTorr, and the plasma treatment time for 1 min to make the polyethylene powder Generate free radicals on the surface of the material.

[0057] 2) Same as step 2) of Example 1.

[0058] 3) Same as embodiment 1 step 3).

[0059] 4) Same as step 4) of Example 1.

Embodiment 3

[0061] 1) Put 1 g of polyethylene powder in a plasma device, and under a vacuum of 200 mTorr, pass argon gas into it for glow discharge, adjust the plasma power to 100 W, the atmosphere pressure to 250 mTorr, and the plasma treatment time for 1 min to make the polyethylene powder Generate free radicals on the surface of the material.

[0062] 2) Same as step 2) of Example 1.

[0063] 3) Same as embodiment 1 step 3).

[0064] 4) Same as step 4) of Example 1.

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Abstract

The invention relates to a polyolefin material with a surface grafted polymer and a preparation method and application of the polyolefin material. The preparation method comprises the following steps:1) placing polyolefin powder into a plasma device, performing vacuuming, and further introducing an inert gas for glow discharge, so as to generate a large number of free radicals on the surface of the polyolefin powder; 2) placing the polyolefin powder with the free radicals on the surface in the air, so as to obtain polyolefin powder with peroxides on the surface; 3) adding the polyolefin powder with the peroxides on the surface to a polymerized monomer solution, and performing a free radical polymerization reaction, so as to obtain polymer powder; and 4) washing and drying the polymer powder, so as to obtain a polyolefin powder material with the surface grafted polymer. The polyolefin powder material with the surface grafted polymer is used as a blend modifier for blending modificationof a polyolefin product. Compared with the prior art, the polyolefin material is simple in preparation step, mild in reaction condition, controllable in grafting rate and grafting type, good in compatibility with polyolefin products and broad in application prospect.

Description

technical field [0001] The invention belongs to the technical field of polymer material synthesis and modification, and relates to a surface-grafted polymer polyolefin material and a preparation method and application thereof. Background technique [0002] Polyolefin materials (such as polyethylene, polypropylene, etc.) have been widely used in aviation, navigation, sports, medical and other fields. In order to improve the surface properties and mechanical properties of polyolefin materials or to impart other functional properties to materials, surface modification is usually required. Generally speaking, there are two methods of surface modification: one is to directly use polyolefin profiles (pipes, plates, etc.) Blended with polyolefin materials and processed into shapes. The first method is not suitable for large-scale industrial production due to the limitation of material size and processing technology. The second method is simple to operate and suitable for industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/02C08F259/08C08F220/24C08F220/20C08F2/38
CPCC08F2/38C08F255/02C08F259/08C08F2438/03C08F220/24C08F220/20
Inventor 郑思珣李蕾应淑妮陈国贵
Owner ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD
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