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Oil-proof pea protein powder-based full-degradable plastic film and preparation method thereof

A technology of pea protein powder and plastic film, which is applied in the field of oil-resistant pea protein powder-based fully degradable plastic film and its production. The preparation method is simple, the water resistance is improved, and the effect of water and oil resistance is excellent

Inactive Publication Date: 2015-09-23
TONGLING FOUNDER PLASTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of natural polymers: poor processing performance, brittleness and water resistance, etc., their application range is limited.
To solve this problem, a single modification method such as plasticizing, acid adjustment, crosslinking, filling or blending is often used. However, this single modification method is limited, and the fully degradable plastic film prepared has a single function and high cost. Industrial production
Nano-silica materials have special functional effects of nanoparticles, which can be used to improve the mechanical properties and water resistance of natural polymer films and polyvinyl alcohol films. There are very few research reports on composite films with polyvinyl alcohol

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The oil-resistant pea protein powder-based fully degradable plastic film is characterized in that it is made of the following raw materials in parts by weight: polyvinyl alcohol 113, pea protein powder 72, nanometer silicon dioxide 3.4, oxidized polyethylene wax 1.7, Basalt fiber 12, magnesium carbonate 0.4, water-based fluorocarbon emulsion 13, vitrified microbeads 3, appropriate amount of water.

[0014] The preparation method comprises the following steps:

[0015] (1) Add an appropriate amount of water to the pea protein powder and stir it into a paste, heat and pre-gelatinize for 10-20 minutes, add magnesium carbonate and oxidized polyethylene wax, stir and mix at a constant temperature for 2-3 hours, filter and dry naturally to obtain modified pea protein pink;

[0016] (2) Vacuum dry the basalt fiber at 105°C for 2-4 hours, add water-based fluorocarbon emulsion and nano-silica, stir and grind for 2-3 hours, and dry;

[0017] (3) Put polyvinyl alcohol in a water...

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Abstract

The invention discloses an oil-proof pea protein powder-based full-degradable plastic film. Polyvinyl alcohol and pea protein powder are used as main film forming matters, and compared with a traditional technology, the preparation method has the advantages that nano silica and pea protein powder are modified through physical and chemical methods and cooperate with other effective ingredients mutually, so that on one hand, hydroxyl groups in pea protein powder and polyvinyl alcohol molecules are preferentially combined with a proper amount of nano silica surface hydroxyl groups to form hydrogen bonds, therefore, the degree of compatibility of pea protein powder and polyvinyl alcohol is improved and the water resistance of the film is improved; on the other hand, uniformly-dispersed single nanoparticles and nano-clusters can generate stress concentration points, therefore, the strength of the film is improved, and the prepared full-degradable plastic film is transparent in appearance and smooth in surface and has the characteristics of heat resistance, excellent water resistance and oil resistance, high biodegradable speed and simple preparation method.

Description

technical field [0001] The invention relates to the technical field of natural polymer materials, in particular to an oil-resistant pea protein powder-based fully degradable plastic film and a manufacturing method thereof. Background technique [0002] Synthetic polymer materials bring great convenience to people's life, but also cause serious pollution to the environment. In addition, the oil reserves for making traditional plastics are constantly decreasing. Therefore, renewable and environmentally friendly natural polymer materials have become a research hotspot. , Cellulose, starch, protein, etc. are natural polymers that are actually studied and applied more at present, so natural polymer-type fully degradable materials have become one of the research hotspots of new environment-friendly materials. [0003] Natural polymers have attracted extensive attention in the fields of food packaging and plastic film applications due to their wide source of raw materials, strong b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L89/00C08L27/12C08K13/06C08K3/36C08K7/10C08K3/26C08K7/28
Inventor 陈可夏陈可亮潮建平
Owner TONGLING FOUNDER PLASTICS TECH
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