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Super-hydrophobic material and preparation method thereof

A technology of super-hydrophobic and expanded microspheres, which is applied in the field of preparation of low-density super-hydrophobic materials, can solve the problems of complex production process, loss of hydrophobic properties, and easy detachment of super-hydrophobic surface layers, so as to simplify the process flow, improve hydrophobic properties, Durable effect

Pending Publication Date: 2020-12-25
快思瑞科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the superhydrophobic surface layer existing in the existing superhydrophobic material is easy to fall off, resulting in loss of hydrophobic performance, and the problem of complicated production process

Method used

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  • Super-hydrophobic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of superhydrophobic HDPE material comprises the following steps:

[0031] Step 1: Premix the expandable microspheres DU260 and EVA in a mixer at a mass ratio of 1:1 for 20 minutes.

[0032] The second step: adding 4wt% EBS wax to the pre-mixed material and mixing, then adding it to a single-screw extruder, and extruding and granulating at 80°C to obtain functional masterbatch.

[0033] The third step: adding 4 wt % of the above functional masterbatch to the HDPE plastic resin, and carrying out an injection molding experiment in an injection molding machine to obtain a 5 mm dumbbell-shaped injection molded part.

Embodiment 2

[0037] The preparation method of superhydrophobic LDPE material comprises the following steps:

[0038] The first step: premix the expandable microspheres DU608 and EVA in a mixer for 20min according to the mass ratio of 1:1.

[0039] The second step: adding 4wt% EBS wax to the pre-mixed material and mixing, then adding it to a single-screw extruder, and extruding and granulating at 80°C to obtain functional masterbatch.

[0040] The third step: adding 4 wt % of the above functional masterbatch to the LDPE plastic resin, and carrying out an injection molding experiment in an injection molding machine to obtain a 5 mm dumbbell-shaped injection molded part.

Embodiment 3

[0044] The preparation method of superhydrophobic PP material comprises the following steps:

[0045] Step 1: Premix the expandable microspheres DU180 and EVA in a mixer at a mass ratio of 1:1 for 20 minutes.

[0046] The second step: adding 4wt% EBS wax to the pre-mixed material and mixing, then adding it to a single-screw extruder, and extruding and granulating at 80°C to obtain functional masterbatch.

[0047] The third step: adding 4 wt % of the above functional masterbatch to the PP plastic resin, and carrying out an injection molding experiment in an injection molding machine to obtain a 5 mm dumbbell-shaped injection molded part.

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Abstract

The invention discloses a super-hydrophobic material and a preparation method thereof. The method includes: mixing expandable microspheres or a mixture of the expandable microspheres and modified silicon dioxide with EVA, and uniformly mixing the substances; carrying out hot cutting by using a single-screw extruder in a temperature range of 70-90DEG C by using an extrusion method to obtain expandable microsphere composite master batch; adding the expandable microsphere composite master batch into plastic resin, and conducting extrusion, injection molding, calendering or blow molding to obtainthe super-hydrophobic material. The surface of the prepared super-hydrophobic material has high hydrophobicity and high durability, and meanwhile, the weight of the material can be greatly reduced. The master batch prepared by the method can be used for improving the hydrophobic property of a material, and is specifically shown in the fields of pollution prevention, water prevention, fog prevention, freezing prevention, self-cleaning, lossless transmission of liquid and the like.

Description

technical field [0001] The invention relates to a preparation method of a durable low-density super-hydrophobic material, belonging to the technical field of organic polymer compounds. Background technique [0002] The development of highly hydrophobic materials makes it more and more widely used in people's daily life and industrial and agricultural production, which is embodied in some fields such as anti-fouling, waterproof, anti-fog, anti-freezing, self-cleaning and lossless transmission of liquids. Therefore, the preparation of various types of highly hydrophobic materials has attracted extensive attention and has broad application prospects. [0003] A superhydrophobic surface refers to a surface with a static contact angle with water greater than 150° and a rolling angle less than 10°. According to the existing research results on rough surfaces and wettability, the construction of superhydrophobic interfaces can be accomplished in two ways: one is to construct a rou...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L23/08C08K5/20C08J9/32C08J3/22
CPCC08J9/32C08J3/226C08J2323/06C08J2323/12C08J2423/08C08J2203/22C08K5/20
Inventor 何志兰刘雪云章超高亮
Owner 快思瑞科技(上海)有限公司
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