Degradable plastic and preparation method thereof

A technology for degrading plastics and raw materials, applied in the field of plastics, can solve the problems of poor interface compatibility, limited plastic products, and uneven mechanical properties of degradable plastics, and achieve good compatibility, excellent external lubricity, and small friction coefficient. Effect

Active Publication Date: 2020-07-10
宝兴精密(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: plant fiber starch belongs to polyhydroxyl polymers, and it is easy to form intramolecular and intermolecular hydrogen bonds, and the interfacial compatibility between plant fiber starch and other raw materials is poor, resulting in the degradable plastic prepared The mechanical properties are not uniform everywhere, and the prepared plastic products are limited in application

Method used

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  • Degradable plastic and preparation method thereof

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Effect test

Embodiment 1

[0032] Table 1 is each raw material and weight thereof of a kind of degradable plastic of embodiment 1

[0033] components mass (kg) components mass (kg) Modified Cellulose 40 Oxidized polyethylene wax 1 Polypropylene 15 Ground calcium carbonate 4 polybutylene succinate 8 Titanium dioxide 2 polylactic acid 12 Iron stearate 1 glycerin 5 Bentonite 5

[0034] Wherein the preparation method of modified cellulose is: 1) soak 100kg cellulose in 2000kg lye for 5h, lye is the mixing of 1600kg mass fraction of 5wt% sodium hydroxide aqueous solution and 400kg mass fraction of 2wt% hydrogen peroxide solution solution, the temperature of the alkali solution is 60°C, and the soaking process is continuously stirred; 2) After soaking, filter and wash 4 times until the filtrate is neutral, and the filter cake is dried and ground; 3) After melting 300kg of glutaric anhydride, add 1kg Concentrated sulfuric acid with a mass fraction ...

Embodiment 2

[0039] Table 2 is each raw material and weight thereof of a kind of degradable plastic of embodiment 2

[0040] components mass (kg) components mass (kg) Modified Cellulose 45 Silicone powder 1 Polypropylene 10 Ground calcium carbonate 5 polybutylene succinate 10 Titanium dioxide 3 polylactic acid 15 Iron stearate 2 Dibutyl phthalate 5 Bentonite 3

[0041] Wherein the preparation method of modified cellulose is: 1) soak 100kg cellulose in 2200kg lye for 3h, lye is the mixing of 1760kg mass fraction of 5wt% sodium hydroxide aqueous solution and 440kg mass fraction of 2wt% hydrogen peroxide solution solution, the temperature of the lye is 60°C, and the soaking process is continuously stirred; 2) After soaking, filter and wash 5 times until the filtrate is neutral, and the filter cake is dried and ground; 3) According to the number of parts by mass, 400kg After the acid anhydride is melted, add 2 kg of concentrated ...

Embodiment 3

[0046] Table 3 is each raw material and weight thereof of a kind of degradable plastic of embodiment 3

[0047] components mass (kg) components mass (kg) Modified Cellulose 50 Stearamide 1 Polypropylene 12 Ground calcium carbonate 6 polybutylene succinate 12 Titanium dioxide 4 polylactic acid 13 Iron stearate 3 glycerin 5 Bentonite 4 Dibutyl phthalate 3

[0048] Wherein the preparation method of modified cellulose is: 1) soak 100kg cellulose in 2400kg lye for 4h, lye is the mixing of 1920kg mass fraction of 5wt% sodium hydroxide aqueous solution and 480kg mass fraction of 2wt% hydrogen peroxide solution solution, the temperature of the lye is 40°C, and the soaking process is continuously stirred; 2) After soaking, filter and wash 4 times until the filtrate is neutral, and the filter cake is dried and ground; 3) According to the number of parts by mass, 350kg After the acid anhydride is melted, add 1.5kg...

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Abstract

The invention relates to degradable plastic and a preparation method thereof. The invention belongs to the technical field of plastics. The degradable plastic comprises the following raw materials bymass: 40-50 parts of modified cellulose, 10-15 parts of polypropylene, 8-12 parts of polybutylene succinate, 12-15 parts of polylactic acid, 5-8 parts of a plasticizer, 1-3 parts of a lubricant, 4-7 parts of a filler, 2-5 parts of titanium dioxide, 1-3 parts of iron stearate, and 3-5 parts of bentonite. The cellulose is modified, so that the interfacial compatibility between the modified celluloseand the other raw materials is good, and the prepared degradable plastic is excellent in mechanical property and uniform in all performances.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a degradable plastic and a preparation method thereof. Background technique [0002] Plastic is a polymer compound made of monomer as raw material through addition polymerization or polycondensation reaction. Plastic products have the advantages of strong stability, light weight, and low production cost, so they are favored by people. In recent decades, the plastic industry has developed rapidly, and the use of a large number of plastic products, especially disposable plastic products, has brought great convenience to human life. However, due to the chemical stability of the plastic itself, it will exist stably in the environment for a long time after being discarded after use, resulting in the accumulation of a large amount of plastic waste in the environment and causing serious harm to the environment. The common methods of dealing with plastic waste are mainly incineration, ...

Claims

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Application Information

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IPC IPC(8): C08L1/10C08L23/12C08L67/02C08L67/04C08L23/30C08L83/04C08K13/02C08K3/22C08K5/098C08K3/34C08K5/053C08K3/26C08K5/12C08K5/20C08B3/12
CPCC08L1/10C08B3/12C08L2205/035C08L2201/06C08K2003/2241C08K2003/265C08L2205/02C08L23/12C08L67/02C08L67/04C08L23/30C08K13/02C08K3/22C08K5/098C08K3/346C08K5/053C08K3/26C08L83/04C08K5/12C08K5/20
Inventor 王军
Owner 宝兴精密(深圳)有限公司
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