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Biomass-based super-hydrophobic paper and preparation method thereof

A super-hydrophobic paper and biomass technology, applied in pulp beating method, non-woody plant/crop pulp, papermaking, etc., can solve the problem of high cost, and achieve mild reaction conditions, good super-hydrophobic properties, and good friction resistance. Effect

Pending Publication Date: 2018-12-21
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polymeric barrier coatings cost several times more than wax coatings

Method used

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  • Biomass-based super-hydrophobic paper and preparation method thereof
  • Biomass-based super-hydrophobic paper and preparation method thereof
  • Biomass-based super-hydrophobic paper and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A preparation method of biomass-based super-hydrophobic paper, which comprises the following processing steps:

[0030] 1) Take the coniferous wood fiber pulp board, rinse it with ethanol and deionized water in sequence, and then put it in an oven at 60°C to dry for 6 hours;

[0031] 2) Soak the coniferous wood fiber pulp board with deionized water, and then perform mechanical beating to obtain an absolute dry coniferous wood fiber pulp with a beating degree of 60 ° SR (its scanning electron microscope picture is as attached figure 1 shown);

[0032] 3) Mechanically stir 1 g of dry coniferous wood fiber slurry with ethanol solution for 15 min, then add tetraethyl titanate and 0.2 g of acetic acid (concentration: 36%), and react at 25°C for 3 h. Centrifugal, clean with ethanol, obtain modified coniferous wood fiber (its scanning electron micrograph is as attached figure 2 shown), stored at 0-4°C;

[0033] 4) According to the demand of quantitative 40g, paper is made ...

Embodiment 2

[0036] A preparation method of biomass-based super-hydrophobic paper, which comprises the following processing steps:

[0037] 1) Take the hardwood fiber pulp board, rinse it with ethanol and deionized water in sequence, and then put it in an oven at 50°C to dry for 6 hours;

[0038] 2) Soak and decompose the hardwood fiber pulp board with deionized water, then perform mechanical beating to obtain an absolute dry hardwood fiber slurry with a beating degree of 50 ° SR;

[0039] 3) Mechanically stir 1 g of dry hardwood fiber slurry with ethanol solution for 30 min, then add butyl titanate and 0.2 g of acetic acid (concentration: 36%), and react at 25°C for 4 h, centrifuge after the reaction , washed with ethanol to obtain modified broad-leaved wood fiber (the scanning electron micrograph is as attached Figure 4 shown), stored at 0-4°C;

[0040] 4) According to the demand of quantitative 60g, use modified broad-leaved wood fiber to make paper, adopt hexadecyltrimethoxysilane (...

Embodiment 3

[0042] A preparation method of biomass-based super-hydrophobic paper, which comprises the following processing steps:

[0043] 1) Take the bamboo fiber pulp board, wash it successively with ethanol and deionized water, and then put it into an oven at 70°C to dry for 6 hours;

[0044] 2) soaking and dissolving the bamboo fiber pulp board with deionized water, then performing mechanical beating to obtain the absolute dry bamboo fiber pulp with a beating degree of 60 ° SR;

[0045] 3) Mechanically stir 1 g of dry bamboo fiber slurry with ethanol solution for 20 min, then add tetraethyl titanate and 0.2 g of acetic acid (concentration: 36%), and react at 50°C for 5 h, centrifuge after the reaction , washed with ethanol to obtain modified bamboo fiber (the scanning electron micrograph is as attached Figure 5 shown), stored at 0-4°C;

[0046] 4) According to the demand of quantitative 60g, use modified bamboo fiber to make paper, adopt octadecyltrimethoxysilane (addition amount i...

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Abstract

The invention discloses a preparation method of biomass-based super-hydrophobic paper. The preparation method comprises the following process steps of (1) adopting a plant fiber pulp board, cleaning and drying; (2) using deionized water for soaking and defibering the plant fiber pulp board, and pulping; (3) mechanically stirring an over dry plant fiber pulp and an ethanol solution for 15 to 30 min, then adding a titanium dioxide precursor and acetic acid, reacting, centrifuging, and obtaining a modified plant fiber; (4) carrying out papermaking processing on the modified plant fiber so as to obtain a paper sheet, and adopting a low surface energy function accessory ingredient for carrying out hydrophobization treatment to obtain a biomass-based super-hydrophobic paper finished product. Thepreparation method provided by the invention is simple, mild in reaction condition, and capable of realizing mass production. The biomass-based super-hydrophobic paper prepared through the inventionhas a favorable super-hydrophobic characteristic so as to have the contact angle with water to be larger than 150 degrees, and has good friction resistance so as to be capable of being recycled. The biomass-based super-hydrophobic paper prepared through the invention can be widely applied to the fields such as logistics transportation packaging or fresh cold drink packaging.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to a superhydrophobic paper. Background technique [0002] In recent years, due to the potential application of superhydrophobic materials in self-cleaning, agriculture, oil-water separation, transportation logistics packaging, etc., researchers have done a lot of research work on the preparation of superhydrophobic surfaces. It is well known that the construction of superhydrophobic surfaces mainly depends on specific micro-nano rough surfaces and low-surface-energy material modification. Therefore, researchers have proposed many methods for constructing superhydrophobic surfaces, such as chemical vapor deposition, plasma etching, and layer-by-layer self-assembly. However, the relatively complex and cumbersome preparation process, expensive and complicated equipment or materials limit the practical application of superhydrophobic materials to a certain extent. [0003] Paper p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C9/00D21D1/02D21H11/00D21H11/12D21H21/16
CPCD21C9/004D21C9/005D21D1/02D21H11/00D21H11/12D21H21/16
Inventor 余明光王青杨文心张敏陈东初
Owner FOSHAN UNIVERSITY
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