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Degradable polymer composite paper prepared from Pickering emulsion and method

A Pickering emulsion and polymer technology, used in special paper, paper, papermaking, etc., can solve the problems of poor paper strength, difficult to decompose, easy to damage, etc., to achieve good biocompatibility, enhanced functionality, and wide application Foreground effect

Pending Publication Date: 2021-12-10
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of the paper is poor, and it is not resistant to water, so it is easily damaged
Most synthetic polymer plastics with better strength have better corrosion resistance, but they are difficult to decompose in the natural environment, causing serious pollution

Method used

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  • Degradable polymer composite paper prepared from Pickering emulsion and method
  • Degradable polymer composite paper prepared from Pickering emulsion and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] With dichloromethane as the oil phase and deionized water as the water phase, 1.2g of degradable polymer material PLA was completely dissolved in 20mL of dichloromethane, and then the two phases were mixed according to the ratio of oil:water=2:1, and 0.05 % nano-silica particles, sheared by a high-speed shearing machine at 5000 rmp for 5 min to obtain a degradable polymer Pickering emulsion, take 10 mL of the obtained polymer emulsion, and evenly coat it on the qualitative filter paper with a glass rod, heat at 180 ° C. Press for 10 min to obtain degradable polymer composite paper.

[0029] Use a servo tensile testing machine to measure the tensile strength of ordinary filter paper and composite paper, such as figure 1 As shown, compared with the tensile strength of ordinary filter paper, the tensile strength of PLA composite paper increased to 35MPa, and the mechanical properties were significantly enhanced.

Embodiment 2

[0031] With dichloromethane as the oil phase and deionized water as the water phase, 1.2g of degradable polymer material PLA was completely dissolved in 20mL of dichloromethane, and then the two phases were mixed according to the ratio of oil:water=2:1, and 0.05 % nano-montmorillonite, sheared by a high-speed shearing machine at 5000 rmp for 5 min to obtain a degradable polymer Pickering emulsion, take 10 mL of the obtained polymer emulsion, evenly coat it on qualitative filter paper with a glass rod, and heat at 180 °C. Press for 10 min to obtain degradable polymer-based composite paper.

Embodiment 3

[0033] With dichloromethane as the oil phase and deionized water as the water phase, 1.2g of degradable polymer material PBAT was completely dissolved in 20mL of dichloromethane, then the two phases were mixed according to the ratio of oil:water=1:2, and 0.05 % nano-montmorillonite, sheared by a high-speed shearing machine at 5000 rmp for 5 min to obtain a degradable polymer Pickering emulsion, take 10 mL of the obtained polymer emulsion, evenly coat it on qualitative filter paper with a glass rod, heat at 150 °C Press for 10 min to obtain degradable polymer-based composite paper.

[0034] like figure 2 As shown, compared with the tensile strength of ordinary filter paper, the tensile strength of PBAT composite paper increased to 34.7MPa, and the mechanical properties were significantly enhanced.

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Abstract

The invention relates to degradable polymer composite paper prepared from Pickering emulsion and a method. The method comprises the following steps: a degradable polymer material is dissolved in an oil phase, then deionized water and nano-particles are sequentially added for shearing, the nano-particles are nano-montmorillonite, nano-silica or nano-titanium dioxide, the nano particles account for 0.03-0.8% of the mass of the high polymer material, and a high polymer Pickering emulsion is prepared; and degradable high-molecular composite paper is obtained by coating the high-molecular Pickering emulsion on paper and carrying out hot pressing. The degradable high-molecular composite paper is high in strength and degradable, widens the application range of the paper, and has wide application prospects in the fields of printing, packaging and the like.

Description

technical field [0001] The invention belongs to the field of special functional paper materials, in particular to a degradable polymer composite paper prepared by adopting Pickering emulsion and a method thereof. Background technique [0002] Since the development of the first generation of plastics, phenolic resins, in 1907, plastic manufacturing technology has continued to evolve, resulting in mass production of lightweight, durable, inert and corrosion-resistant plastics, but these materials have been a growing problem in the environment. The durability of plastics makes it such an attractive material to use and it also has a high resistance to degradation, so the disposal of waste plastics has always been problematic, and the advancement of the process of replacing plastics with paper is imperative. [0003] At first, paper was born to simplify the complicated process of writing. Today, paper has evolved into various uses, such as low-weight coated paper, which is often ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H19/40D21H21/52D21H19/38D21H19/44D21H19/62
CPCD21H27/00D21H19/40D21H21/52D21H19/385D21H19/44D21H19/62
Inventor 刘汉斌杨晓晗李志健
Owner SHAANXI UNIV OF SCI & TECH
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