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High-strength degradable environment-friendly plastic and preparation method thereof

An environmentally friendly plastic, high-strength technology, applied in the field of plastics, can solve the problems of poor corrosion resistance, hard and brittle plastics, inconvenience, etc., and achieve the effects of excellent water resistance, improved water resistance, and simple operation.

Inactive Publication Date: 2021-02-12
张小兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing starch-based plastics have poor anti-corrosion performance, and in saline-alkaline areas, coastal areas, etc., plastics are easily corroded by acids, alkalis, and salts for a long time, resulting in hard, brittle, and cracked plastics. Inconvenient to come, so in view of this situation, we designed a high-strength degradable environmentally friendly plastic and its preparation method to solve this problem

Method used

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  • High-strength degradable environment-friendly plastic and preparation method thereof
  • High-strength degradable environment-friendly plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method of high-strength degradable environmentally friendly plastics, comprising the following steps:

[0040] (1) Prepare materials;

[0041] (2) Preparation of modified matrix:

[0042] Take zirconium phosphate and n-butylamine, ultrasonically disperse for 1 hour, stir and react after ultrasonic for 20 hours, and dry to obtain modified zirconium phosphate; take modified zirconium phosphate, cationic starch, corn starch and glycerin, stir and mix for 30 minutes, extrude and granulate to obtain modified zirconium phosphate Starch;

[0043] Take modified starch, compatibilizer, polyethylene and corn starch, stir and mix for 40 minutes, extrude and granulate, process and shape to obtain a pretreated substrate; put the pretreated substrate in acetone solution, ultrasonically treat it for 20 minutes, take it out and perform surface treatment Mechanically grind, wash and dry, then place in silane coupling agent A solution, soak for 20min at 110°C to obtain a mo...

Embodiment 2

[0050] A preparation method of high-strength degradable environmentally friendly plastics, comprising the following steps:

[0051] (1) Prepare materials;

[0052] (2) Preparation of modified matrix:

[0053] Take zirconium phosphate and n-butylamine, ultrasonically disperse for 1.1h, stir and react after ultrasonic for 21h, and dry to obtain modified zirconium phosphate; take modified zirconium phosphate, cationic starch, corn starch and glycerin, stir and mix for 35min, extrude and granulate to obtain modified starch;

[0054] Take modified starch, compatibilizer, polyethylene and corn starch, stir and mix for 45 minutes, extrude and granulate, process and shape to obtain a pretreated substrate; place the pretreated substrate in acetone solution, ultrasonically treat it for 25 minutes, take it out and perform surface treatment Mechanically grind, wash and dry, then place in silane coupling agent A solution, soak at 115°C for 25min to obtain a modified matrix;

[0055] (3)...

Embodiment 3

[0061] A preparation method of high-strength degradable environmentally friendly plastics, comprising the following steps:

[0062] (1) Prepare materials;

[0063] (2) Preparation of modified matrix:

[0064] Take zirconium phosphate and n-butylamine, ultrasonically disperse for 1.2 hours, stir and react for 22 hours after ultrasonic, and dry to obtain modified zirconium phosphate; take modified zirconium phosphate, cationic starch, corn starch and glycerin, stir and mix for 40 minutes, extrude and granulate to obtain modified starch;

[0065] Take modified starch, compatibilizer, polyethylene and corn starch, stir and mix for 50 minutes, extrude and granulate, process and shape to obtain a pretreated substrate; place the pretreated substrate in acetone solution, ultrasonically treat it for 30 minutes, take it out and perform surface treatment Mechanical grinding, washing and drying, then placing in the silane coupling agent A solution, soaking at 120°C for 30min, to obtain ...

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Abstract

The invention discloses a high-strength degradable environment-friendly plastic and a preparation method thereof. The environment-friendly plastic comprises a modified substrate and an anticorrosive coating coated on the surface of the modified substrate; the modified substrate is mainly prepared by surface modification of a pretreatment matrix and a silane coupling agent A; the anticorrosive coating is prepared from the following raw materials, by weight: 60-70 parts of epoxy resin, 25-30 parts of ethylene glycol monobutyl ether, 30-40 parts of a silane coupling agent B and 10-15 parts of modified graphene. The invention discloses a high-strength degradable environment-friendly plastic and a preparation method thereof, the process design is reasonable, the operation is simple, and the prepared environment-friendly plastic is co-extruded by taking polyethylene, corn starch and other components as raw materials; the plastic has excellent biodegradability as well as excellent water resistance and corrosion resistance; and the plastic has excellent comprehensive performance, can be applied to multiple fields, and has high practicability.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a high-strength degradable environmentally friendly plastic and a preparation method thereof. Background technique [0002] With the advancement of science and technology and the rapid development of infrastructure construction, the scope and application of plastic pipes are becoming wider and wider, and the amount of use is increasing. It has become the fourth largest category of building materials after the three traditional building materials. The disposal of waste plastics has also become a major problem for us. Based on this situation, bio-based plastics are gradually appearing before our eyes. [0003] Starch is a natural polymer that is second only to cellulose in terms of production on the earth. It is rich in sources, renewable, and low in price. It can be used to produce starch-based plastics through modification and plasticization. As an important category of bio-bas...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08J7/12C08L23/06C08L3/02C08L3/08C08L51/06C08K9/04C08K3/32C08K5/053C09D163/00C09D5/08C09D7/62C09D7/63
CPCC08J7/12C08J2323/06C08J2463/00C08K2003/328C08L23/06C08L2201/06C08L2205/02C08L2205/035C09D5/08C09D163/00C09D7/62C09D7/63C08J7/0427C08L3/02C08L3/08C08L51/06C08K9/04C08K3/32C08K5/053C08K9/02C08K3/042C08K5/544
Inventor 张小兰
Owner 张小兰
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