Air-permeable full-degradable plastic film and manufacturing method thereof

A technology of plastic film and production method, which is applied to flat products, other household utensils, applications, etc., can solve the problems of high brittleness, poor water resistance, poor processing performance, and limited application range, etc., and achieve environmental protection and thermoplastic processability. Excellent, increase the effect of compatibility

Inactive Publication Date: 2015-09-09
TONGLING FOUNDER PLASTICS TECH
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  • Description
  • Claims
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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 de

Method used

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Embodiment Construction

[0013] The breathable fully degradable plastic film is characterized in that it is made of the following raw materials in parts by weight: polyvinyl alcohol 102, high-gluten flour 56, nano silicon dioxide 2.3, attapulgite 1.3, sodium citrate 0.4, Stearyl alcohol 0.7, pure acrylic emulsion 13, PE wax 2, reed pulp fiber 11, ferrous oxalate 0.3, appropriate amount of water.

[0014] The preparation method comprises the following steps:

[0015] (1) Add appropriate amount of water to the high-gluten flour and stir it into a paste, heat and pre-gelatinize for 10-20 minutes, add ferrous oxalate and stearyl alcohol, stir and mix at a constant temperature for 2-3 hours, filter and dry naturally to obtain modified high-gluten flour flour;

[0016] (2) Vacuum dry the reed pulp fiber at 105°C for 2-4 hours, add pure acrylic emulsion, PE wax, and nano-silica, stir and grind for 2-3 hours, and dry;

[0017] (3) Put polyvinyl alcohol in a water bath at 80-90°C and keep it warm for 30-40 m...

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PUM

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Abstract

The invention discloses an air-permeable full-degradable plastic film which adopts polyvinyl alcohol and high gluten flour as main film forming matters. Compared with the traditional technique, the air-permeable full-degradable plastic film is characterized in that a physicochemical process is adopted to modify nano silicon dioxide and the high gluten flour, and the other effective components are matched, so that hydroxy groups in the high gluten flour and polyvinyl alcohol molecules can be preferentially combined with a right amount of hydroxy groups on the nano silicon dioxide surface to form hydrogen bonds, thereby enhancing the compatibility between the high gluten flour and polyvinyl alcohol; and part of hydroxy groups in the high gluten flour and polyvinyl alcohol are sealed to improve the water resistance of the film. The prepared full-degradable plastic film has the advantages of high degradation ratio, favorable film-forming property, favorable air permeability, excellent thermoplastic processibility, low cost and simple technique, and is beneficial to environmental protection.

Description

technical field [0001] The invention relates to the technical field of natural polymer materials, in particular to a breathable 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 biodegradability and excellent...

Claims

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Application Information

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IPC IPC(8): C08L29/04C08L3/02C08L33/04C08L97/02C08L23/06C08K13/06C08K9/04C08K3/36C08K3/34C08K5/098C08K5/05B29C55/28B29L7/00
Inventor 陈可夏陈可亮潮建平
Owner TONGLING FOUNDER PLASTICS TECH
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