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Superhydrophobic polypropylene film and preparation method thereof

A polypropylene film and super-hydrophobic technology, applied in the field of super-hydrophobic polypropylene film and its preparation, super-hydrophobic polypropylene film, can solve the problems of expensive materials, difficult to popularize and apply, etc., achieve stable super-hydrophobic properties, wide application prospects, good reproducibility

Inactive Publication Date: 2012-10-24
昌源集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these existing methods either use expensive materials, or require special processing equipment or complex processes, making it difficult to popularize and apply

Method used

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  • Superhydrophobic polypropylene film and preparation method thereof
  • Superhydrophobic polypropylene film and preparation method thereof
  • Superhydrophobic polypropylene film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The superhydrophobic polypropylene film is made by the following preparation method:

[0022] Step 1: Rinse the dust on the surface of fresh taro leaves with tap water, and then cut the taro leaves to a size of 20 cm and a width of 15 cm;

[0023] The second step: put the taro leaves cut out in the first step into a pouring mold with a height of 8 cm as the original template for use;

[0024] Step 3: Mix liquid room temperature vulcanized silicone rubber with its catalyst (dibutyltin dilaurate) and crosslinking agent (tetraethyl orthosilicate) in a ratio of 100:1:5 and stir for 20 minutes, then set aside Take out the air bubbles in the mixture in a vacuum box, and then pour the mixture of room temperature vulcanized silicone rubber on the fresh taro leaves in the mold. After curing for 24 hours at room temperature and atmospheric environment, gently tear off the cured room temperature vulcanized rubber from the taro leaves. Silicone rubber, obtain vulcanized silicone r...

Embodiment 2

[0028] In this embodiment, the superhydrophobic polypropylene film is made by the following preparation method:

[0029] Step 1: Rinse the dust on the surface of the fresh taro leaves with tap water, and then cut the taro leaves into a size of 50 cm and a width of 50 cm;

[0030] The second step: put the taro leaves cut out in the first step into a pouring mold with a height of 8 cm as the original template for use;

[0031] Step 3: Mix liquid room temperature vulcanized silicone rubber with its catalyst (dibutyltin dilaurate) and crosslinking agent (tetraethyl orthosilicate) in a ratio of 100:5:20 and stir for 30 minutes, then set aside The air bubbles in the mixture are extracted in a vacuum box, and then the mixture of room temperature vulcanized silicone rubber is poured on the fresh taro leaves in the mold, and the cured silicon vulcanizate is gently torn off from the taro leaves after curing for 30 hours at room temperature and atmospheric environment Rubber, obtain vul...

Embodiment 3

[0035] In this embodiment, the superhydrophobic polypropylene film is made by the following preparation method:

[0036] Step 1: Rinse the dust on the surface of fresh taro leaves with tap water, and then cut the taro leaves to a size of 30 cm and a width of 30 cm;

[0037] The second step: put the taro leaves cut out in the first step into a pouring mold with a height of 8 cm as the original template for use;

[0038] Step 3: Mix liquid room temperature vulcanized silicone rubber with its catalyst (dibutyltin dilaurate) and crosslinking agent (tetraethyl orthosilicate) in a ratio of 100:1:10 and stir for 10 minutes, then set aside Take out the air bubbles in the mixture in a vacuum box, and then pour the room temperature vulcanized silicone rubber mixture on the fresh taro leaves in the mold. After curing for 20 hours at room temperature and atmospheric environment, gently tear off the cured silicon vulcanizate from the taro leaves Rubber, obtain vulcanized silicone rubber s...

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Abstract

The invention provides a super-hydrophobic polypropylene film and a preparation method thereof, belonging to the technical field of superhydrophobic film materials. The invention solves the problems of too high preparation cost, complex process, and the like in the traditional super-hydrophobic polypropylene film. The surface structure of the super-hydrophobic polypropylene film is similar to the surface structure of natural taro leaf. The preparation method for the super-hydrophobic polypropylene film comprises the following steps of: placing the fresh taro leaf into a casting mold, mixing and stirring liquid room temperature vulcanizing silicone rubber with a catalyst and a crosslinking agent thereof in proportions, pumping air bubbles in the mixture, and then pouring the mixture on the fresh taro leaf in the mold, and finally obtaining a vulcanized silicone rubber soft template after curing in an atmospheric environment at a room temperature. By casting polypropylene solution with the concentration of 1 to 100 mg / ml onto the vulcanized silicone rubber soft template, and then drying in the atmospheric environment at the room temperature and tearing off, the super-hydrophobic polypropylene film is obtained. The super-hydrophobic polypropylene film has the advantages of simple preparation process, good reproducibility, and very good industrial application prospect without needing any expensive equipment.

Description

technical field [0001] The invention belongs to the technical field of superhydrophobic film materials, and relates to a superhydrophobic polypropylene film, in particular to a superhydrophobic polypropylene film prepared in an atmospheric environment at room temperature and a preparation method thereof. Background technique [0002] Inspired by the lotus leaf effect, superhydrophobic surface materials with water contact angles greater than 150° have attracted extensive attention in recent years. Since water droplets drop onto the super-hydrophobic surface, shiny spherical water droplets are usually formed. The contact area between the water droplets and the surface is very small, and the water droplets are easy to roll and take away the dust on the surface, which has the property of self-cleaning. In addition, the super-hydrophobic surface It also has the characteristics of waterproof, anti-fog, anti-oxidation, etc., so it has broad application prospects in scientific resea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08J5/18
Inventor 吴军良张惠萍袁志庆王许南
Owner 昌源集团有限公司
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