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Preservative film with good mechanical property and preparation method thereof

A technology of plastic wrap and performance, applied in the field of plastic wrap with good mechanical properties and its preparation, can solve the problems of low mechanical strength and water resistance, achieve enhanced compatibility and interface bonding force, improve mechanical properties, improve Effect of Toughness and Tensile Properties

Inactive Publication Date: 2019-01-25
蚌埠尚岛宜家日用品科技工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of starch itself, the mechanical strength and water resistance of starch-based degradable plastics are generally low at present.

Method used

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  • Preservative film with good mechanical property and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A plastic wrap with better mechanical properties is characterized in that it is made of the following raw materials in parts by weight:

[0018] Coconut palm fiber 5, laver 3, silk floss 4, silane coupling agent solution 10, tetrabutyl titanate 3, squid ink 1, starch 20, polyvinyl alcohol 60, glyoxal 10, triethyl citrate 5, shell Glycan4.

[0019] Further, its preparation method comprises the following steps:

[0020] (1) Cut coconut palm fiber, seaweed, and silk floss to a length of 0.1mm with a shear, then add it to absolute ethanol, stir at 70°C and 200rpm for 20min, then filter, and use a silane coupling agent solution The resultant is sprayed, and after the spraying is completed, it is added to a high-speed jet mill and processed for 5 minutes;

[0021] (2) Dissolve tetrabutyl titanate in an anhydrous ethanol solution 10 times its volume, stir at 50rpm for 30min, then add the product from step (1), then continue stirring at 40°C and 300rpm for 40min, then turn to...

Embodiment 2

[0027] A plastic wrap with better mechanical properties is characterized in that it is made of the following raw materials in parts by weight:

[0028] Coconut palm fiber 10, seaweed 5, silk floss 5, silane coupling agent solution 20, tetrabutyl titanate 6, squid ink 2, starch 25, polyvinyl alcohol 70, glyoxal 12, triethyl citrate 7, shell Glycan 5.

[0029] Further, its preparation method comprises the following steps:

[0030] (1) Cut coconut palm fiber, seaweed, and silk floss to a length of 2mm with a shear, then add them to absolute ethanol, stir at 75°C and 250rpm for 25min, then filter, and use a silane coupling agent solution to The resultant is sprayed, and after the spraying is completed, it is added to a high-speed jet mill and processed for 8 minutes;

[0031] (2) Dissolve tetrabutyl titanate in an absolute ethanol solution 15 times its volume, stir at 70rpm for 35min, then add the product from step (1), then continue stirring at 42°C and 400rpm for 50min, then t...

Embodiment 3

[0037] A plastic wrap with better mechanical properties is characterized in that it is made of the following raw materials in parts by weight:

[0038] Coconut palm fiber 15, laver 6, silk floss 8, silane coupling agent solution 30, tetrabutyl titanate 8, squid ink 2, starch 30, polyvinyl alcohol 80, glyoxal 15, triethyl citrate 10, shell Glycan8.

[0039] Further, its preparation method comprises the following steps:

[0040] (1) Cut the coconut palm fiber, seaweed, and silk floss to a length of 5mm with a shear, then add it to absolute ethanol, stir at 80°C and 300rpm for 30min, then filter, and use a silane coupling agent solution to The resultant is sprayed, and after the spraying is completed, it is added to a high-speed jet mill and processed for 10 minutes;

[0041] (2) Dissolve tetrabutyl titanate in an anhydrous ethanol solution 20 times its volume, stir at 100rpm for 40min, then add the product from step (1), then continue stirring at 45°C and 500rpm for 60min, the...

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Abstract

The invention discloses a preservative film with good mechanical property and a preparation method thereof. The prepared preservative film has high longitudinal and transverse stretch intensity; meanwhile, after the burying in soil for three months in a natural environment, the weight loss rate can reach 73 to 75 percent; the degradation performance is good. A silane coupling agent is used for treating coconut fiber, purple laver and silk floss; the effect of a high-speed air flow crushing machine is matched; the reaction of the silane coupling agent on the surface can be accelerated, so thatthe uniform dispersion is realized; the compatibility with a substrate and the interface combination power are enhanced; the anti-stretch performance of the obtained preservative film is improved; tetrabutyl titanate is used for generating titanium dioxide in situ on the surfaces of coconut fiber, purple laver and silk floss; a synergistic effect is achieved; the molecular structure of the substrate can be improved; a crosslinking network can be formed; the mechanical property is improved; meanwhile, through the existence of coconut fiber, purple laver and silk floss, the degradation performance of the preservative film is improved.

Description

technical field [0001] The invention belongs to the technical field of plastic wrap, in particular to a plastic wrap with better mechanical properties and a preparation method thereof. Background technique [0002] Plastic products provide convenience for industry, agriculture and daily life, but also generate a lot of waste, most of which come from disposable plastic products such as packaging bags, beverage bottles, and agricultural mulch. These wastes are large in size, take a long time to decompose, and are very difficult to degrade in the natural environment. The subsequent "white pollution" has caused a great environmental burden and pollution, and cannot meet the needs of people's growing awareness of "environmental friendliness". . Starch-based degradable plastics overcome the problems of non-degradable traditional plastics and shortage of petroleum resources, and are recognized by domestic and foreign scholars as one of the most promising biodegradable materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L3/02C08L5/08C08L97/02C08K5/11C08K3/22C08J5/18
CPCC08J5/18C08J2329/04C08J2403/02C08J2405/08C08J2497/02C08K5/11C08K2003/2241
Inventor 袁志杰王丹
Owner 蚌埠尚岛宜家日用品科技工业有限公司