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High-degradation modified plastic particle

A technology of plastic granules and modification, applied in the field of preparation of degradable plastic granules, can solve problems such as environmental hazards and slow degradation speed

Inactive Publication Date: 2021-12-03
安徽成龙塑业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a highly degradable modified plastic particle, which is used to solve the problem that due to the slow degradation rate of polyethylene products, it often takes dozens or even hundreds of years to degrade naturally, and with the degradation of polyethylene products The problem of misuse causing serious harm to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Prepare degradation agent, this degradation agent is made by following steps:

[0041]Step A1: Add 3,5-diaminobenzoic acid and deionized water into the flask, stir for 20min at a temperature of 45°C and a speed of 200r / min, then add thionyl chloride and N,N-dimethyl base formamide, the temperature was raised to 70°C, and the reaction was carried out under reflux for 5 hours. After the reaction was completed, the unreacted thionyl chloride was removed under reduced pressure, and the intermediate 1 was obtained after rotary evaporation;

[0042] Step A2: Add chitosan into a flask equipped with deionized water, stir for 5 minutes at a temperature of 20°C and a speed of 300r / min, then mix intermediate 1 with toluene at a temperature of 5°C and a speed of 100r / min. The mixed solution was added dropwise into the flask, and then heated to 15°C for 8 hours of reaction. After the reaction, acetone was added and allowed to stand for 0.5 hours. After suction filtration, the filter...

Embodiment 2

[0047] Prepare degradation agent, this degradation agent is made by following steps:

[0048] Step A1: Add 3,5-diaminobenzoic acid and deionized water into the flask, stir for 20min at a temperature of 47.5°C and a speed of 300r / min, then add thionyl chloride and N,N-dimethyl base formamide, the temperature was raised to 70°C, and the reaction was carried out under reflux for 5 hours. After the reaction was completed, the unreacted thionyl chloride was removed under reduced pressure, and the intermediate 1 was obtained after rotary evaporation;

[0049] Step A2: Add chitosan into a flask filled with deionized water, stir for 7.5 minutes at a temperature of 25°C and a speed of 300r / min, then mix intermediate 1 with toluene at a temperature of 5°C and a speed of 100r / min The mixed solution was added dropwise into the flask, and then heated to 20°C to react for 12 hours. After the reaction, acetone was added and allowed to stand for 0.75 hours. After suction filtration, the filte...

Embodiment 3

[0054] Prepare degradation agent, this degradation agent is made by following steps:

[0055] Step A1: Add 3,5-diaminobenzoic acid and deionized water into the flask, stir for 20min at a temperature of 50°C and a speed of 400r / min, then add thionyl chloride and N,N-dimethyl base formamide, the temperature was raised to 70°C, and the reaction was carried out under reflux for 5 hours. After the reaction was completed, the unreacted thionyl chloride was removed under reduced pressure, and the intermediate 1 was obtained after rotary evaporation;

[0056] Step A2: Add chitosan into a flask equipped with deionized water, stir for 10 min at a temperature of 30°C and a speed of 300r / min, then mix intermediate 1 with toluene at a temperature of 5°C and a speed of 100r / min. The mixture was added dropwise into the flask, and then heated to 25°C to react for 16 hours. After the reaction, acetone was added and allowed to stand for 1 hour. After suction filtration, the filter cake was wash...

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Abstract

The invention discloses a high-degradation modified plastic particle, belongs to the technical field of preparation of degradable plastic particles, and aims at solving the problems that a polyethylene product is low in degradation speed and usually needs dozens or even hundreds of years to be naturally degraded, and serious harm is caused to the environment along with abuse of the polyethylene product. The high-degradation modified plastic particle is prepared from the following raw materials in parts by weight: 30 to 40 parts of polyethylene, 10.2 to 16.8 parts of lignocellulose, 20 to 30 parts of modified starch, 0.2 to 0.6 part of cellulose degrading enzyme, 10.2 to 15.6 parts of pigment and filler, 1.3 to 5.4 parts of a coupling agent, 3.2 to 5.4 parts of a dispersing agent, 1.3 to 5.5 parts of a stabilizer, 1.2 to 5.8 parts of a plasticizer, 1.2 to 3.2 parts of an antioxidant and 2.8 to 5.6 parts of a degradation agent. The degradation agent is added in preparation, so that the prepared high-degradation modified plastic particles have biodegradation and photodegradation properties at the same time.

Description

technical field [0001] The invention relates to the technical field of preparation of degradable plastic particles, in particular to a highly degradable modified plastic particle. Background technique [0002] Polyethylene is a thermoplastic resin obtained by polymerization of ethylene. Polyethylenes are crystalline thermoplastic resins whose chemical structure, molecular weight, degree of polymerization and other properties are largely dependent on the polymerization method used. Polyethylene is a typical thermoplastic, which is an odorless, tasteless, non-toxic, flammable white powder; polyethylene has corrosion resistance, excellent electrical insulation, can be chlorinated, modified by irradiation, and can be reinforced with glass fiber. Low-pressure polyethylene has high melting point, rigidity, hardness and strength, low water absorption, good electrical properties and radiation resistance; high-pressure polyethylene has good flexibility, elongation, impact strength a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L1/02C08L3/10C08L5/08C08B31/18C08B31/12C08B37/08
CPCC08L23/06C08B31/185C08B31/12C08B37/003C08L2201/06C08L1/02C08L3/10C08L5/08
Inventor 靳成龙靳南南
Owner 安徽成龙塑业科技有限公司
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