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Full-biodegradation plastic starch master batch, preparation and uses thereof

An all-biological, starch-based technology, applied in the field of plastic masterbatches, can solve problems such as incomplete degradation, complex preparation process of degradable plastics, and long degradation time

Active Publication Date: 2009-05-13
孙彦升
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing degradable plastics either have problems such as complex preparation process and high cost, or have defects such as too long degradation time and incomplete degradation, which need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Take each component by the following weight (unit: Kg): corn starch 65, carrier polypropylene 25, compatibilizer mineral oil 2, magnesium salt of lubricant stearic acid 2, modifier itaconic acid 3. Degradation accelerator corn oil 3;

[0047] (2) Dry the starch and add it to a high-speed heating / cooling mixer (produced by Chengde Jinong Biodegradable Products Co., Ltd.; specification: hot mixing 300L / cold mixing 500L; model: SRL-230 / 500A) at a temperature of 175°C Mixed under conditions for 18 minutes;

[0048] (3) Add modifier itaconic acid, mix for 4 minutes, and the mixing temperature is 148°C;

[0049] (4) Add compatibilizer mineral oil, mix for 4 minutes, and the mixing temperature is 154°C;

[0050] (5) Add carrier polypropylene, magnesium salt of lubricant stearic acid and degradation accelerator corn oil, mix for 12 minutes, and the mixing temperature is 167°C;

[0051] (6) Put the mixture into a cold pot and cool until it is crushed, then set aside;

[...

Embodiment 2

[0055] (1) Weigh each component according to the following weight (unit: Kg): corn starch 60, carrier polypropylene 30, compatibilizer vegetable oil 1, lubricant polyethylene wax 1, modifier itaconic acid 3, degradation promotion Agent epoxy soybean oil 5;

[0056] (2) Dry the starch and add it to a high-speed heating / cooling mixer (produced by Chengde Jinong Biodegradable Products Co., Ltd.; specification: hot mixing 300L / cold mixing 500L; model: SRL-230 / 500A) at a temperature of 170°C Mixed under conditions for 20 minutes;

[0057] (3) Add modifier itaconic acid, mix for 5 minutes, and the mixing temperature is 149°C;

[0058] (4) Add the compatibilizer vegetable oil, mix for 5 minutes, and the mixing temperature is 155°C;

[0059] (5) Add carrier polypropylene, lubricant polyethylene wax and degradation accelerator epoxy soybean oil, mix for 15 minutes, and the mixing temperature is 166°C;

[0060] (6) Put the mixture into a cold pot and cool until it is crushed, then set ...

Embodiment 3

[0064] (1) Weigh each component according to the following weight (unit: Kg): corn starch 75, carrier polypropylene 20, compatibilizer aluminate coupling agent 1, lubricant magnesium salt of stearic acid 1, modified agent itaconic acid 1, degradation accelerator corn oil 2;

[0065] (2) After drying the raw corn starch, add it to a high-speed heating / cooling mixer (produced by Chengde Jinong Biodegradable Products Co., Ltd.; specification: hot mixing 300L / cold mixing 500L; model: SRL-230 / 500A) at 180 Mix at ℃ for 15 minutes;

[0066] (3) Add modifier itaconic acid, mix for 3 minutes, and the mixing temperature is 145°C;

[0067] (4) Add the compatibilizer aluminate coupling agent, mix for 3 minutes, and the mixing temperature is 152°C;

[0068] (5) Add carrier polypropylene, magnesium salt of lubricant stearic acid and degradation accelerator corn oil, mix for 10 minutes, and the mixing temperature is 170°C;

[0069] (6) Put the mixture into a cold pot and cool until it is ...

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Abstract

The invention discloses a full biodegradable plastic starch master batch, a preparation method and application thereof. The plastic starch master batch comprises the following compositions in portion by weight: 60 to 75 portions of starch, 20 to 30 portions of vectors, 1 to 5 portions of compatilizer, 1 to 5 portions of lubricant, 1 to 5 portions of modifier and 1 to 5 portions of degradation accelerant. The plastic master batch takes the starch as a bioactive substance which is added with light, oxygen and the thermal degradation accelerant, and has the characteristic of multi-degradation under the action of the light, the oxygen, heat and microorganisms. The degradation process of the full biodegradable plastic starch master batch is as follows: after the induction period (controllable) is over, a product is degraded into chips and powder, assimilated with the environment finally, and is continuously degraded under certain environmental condition (aerobic), and CO2 and water are finally generated and can not cause secondary pollution when entering into soil, wherein the degradation period can be adjusted and controlled as required by change of the addition of a composite degradation regulator and the bioactive substance. The full biodegradable plastic starch master batch also has the advantages of simple preparation technology, low production cost and so on.

Description

technical field [0001] The invention relates to a plastic master batch, in particular to a fully biodegradable plastic starch master batch and a preparation method and application thereof, belonging to the field of plastic master batches. Background technique [0002] Degradable plastics refer to a class of plastics whose products can meet the requirements of use in various properties and remain unchanged during the storage period. After use, they can be degraded into environmentally harmless substances under natural environmental conditions. Therefore, they are also called plastics. Made of environmentally degradable plastic. Polymer degradation refers to the process of breaking polymerized macromolecular chains due to chemical and physical factors. The degradation process of macromolecular chain breakage of polymers exposed to oxygen, water, radiation, chemicals, pollutants, mechanical forces, insects and other animals and microorganisms is called environmental degradatio...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L97/02C08K5/00C08J3/22B29B7/00B29B9/00B29C47/92A01G13/02B65D65/38B29C48/92
CPCY02W90/10
Inventor 孙彦升
Owner 孙彦升
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