High-compatibility starch-based full-biodegradable resin, and preparation method thereof

A technology for degrading resin and compatibility, which is applied in the field of highly compatible starch-based fully biodegradable resin and its preparation, can solve problems such as poor compatibility between starch and synthetic resin, and achieve mechanical strength compliance, enhanced compatibility, and starch content. high effect

Inactive Publication Date: 2016-05-25
SHANDONG SHOUGUANG JUNENG GOLDEN CORN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Specifically, the technical problem to be solved by the present invention is to provide a highly compatible starch-based fully biod

Method used

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  • High-compatibility starch-based full-biodegradable resin, and preparation method thereof

Examples

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Effect test

Embodiment 1

[0037] A highly compatible starch-based fully biodegradable resin, prepared from the following components by weight: plant starch 30, reaction aid: 1, polyester resin 40, plasticizer: 2, mold release agent: 0.2 . Wherein, the vegetable starch is native corn starch. The reaction auxiliary agent is a mixture of ferrous sulfate, ammonium cerium nitrate, maleic anhydride, stearic acid and octenyl succinic anhydride. The polyester resin is a mixture of PLA and PBAT, wherein the mass ratio of PLA and PBAT is 1:1. The plasticizer is acetyl tributyl citrate. The release agent is a mixture of polyethylene wax and stearamide.

[0038] The preparation method of the present embodiment comprises the steps:

[0039] (1) Modification of vegetable starch

[0040] Put the vegetable starch into a dry process reactor with a temperature of 75°C, add a reaction auxiliary agent, and the reaction time is 0.5 hours to obtain a modified starch;

[0041] (2) Blending of modified starch and polyes...

Embodiment 2

[0047] A highly compatible starch-based fully biodegradable resin prepared from the following components by weight: plant starch 60, reaction aid: 10, polyester resin 70, plasticizer: 5, mold release agent: 1 . Wherein, the vegetable starch is a mixture of corn starch and tapioca starch, and the weight ratio of the mixture of corn starch and tapioca starch is 1:1. The reaction auxiliary agent is a mixture of ferrous sulfate, cerium ammonium nitrate, hydrogen peroxide, ammonium persulfate, maleic anhydride, stearic acid, aluminate coupling agent, vinyl acetate and acrylic acid. The polyester resin is a mixture of PLA and PBAT, wherein the mass ratio of PLA and PBAT is 3:1. Described plasticizer is the mixture of epoxy octyl stearate, epoxy soybean oil. The release agent is a mixture of polyethylene wax, stearamide, silicone oil and polyethylene glycol.

[0048] The preparation method of the present embodiment comprises the steps:

[0049] (1) Modification of vegetable starch ...

Embodiment 3

[0057] A highly compatible starch-based fully biodegradable resin, prepared from the following components by weight: plant starch 50, reaction aid: 50, polyester resin 50, plasticizer: 4, mold release agent: 0.7 . in,

[0058] The vegetable starch is a mixture of corn starch and tapioca starch. The weight ratio of the mixture of corn starch and tapioca starch is 1:1. The reaction auxiliary agent is a mixture of ceric ammonium nitrate, maleic anhydride, stearic acid, octenyl succinic anhydride and vinyl acetate. The polyester resin is a mixture of PLA and PBAT, wherein the mass ratio of PLA and PBAT is 2:1. Described plasticizer is epoxidized soybean oil. The release agent is a mixture of polyethylene wax, stearylamide and polyethylene glycol.

[0059] The preparation method of the present embodiment comprises the steps:

[0060] (1) Modification of vegetable starch

[0061] Put the vegetable starch into a dry process reactor with a temperature of 80°C, add a reaction au...

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Abstract

The invention discloses a high-compatibility starch-based full-biodegradable resin. The high-compatibility starch-based full-biodegradable resin is prepared from, by weight, 30 to 60 parts of plant starch, 1 to 10 parts of a reaction auxiliary agent, 40 to 70 parts of a polyester resin, 2 to 5 parts of a plasticizer, and 0.2 to 1 part of a mould releasing agent. The invention also relates to a preparation method of the high-compatibility starch-based full-biodegradable resin. The high-compatibility starch-based full-biodegradable resin is high in starch content, and excellent in material compatibility and mechanical properties, and is suitable for plastic processing technology such as blow molding and film blowing; full biodegradation of the high-compatibility starch-based full-biodegradable resin can be realized; product surface is smooth; dispersion is uniform; light transmittance is high; and mechanical strength is capable of satisfying related requirements.

Description

technical field [0001] The invention relates to the technical field of biodegradable resin preparation, in particular to a highly compatible starch-based fully biodegradable resin and a preparation method thereof. Background technique [0002] With the rapid development of society and the advancement of science and technology, people's demand for oil is increasing, but oil is a non-renewable resource. With the extensive use of various countries, oil resources are bound to face depletion. At the same time, non-degradable oil-based A series of problems caused by plastic waste, such as polluting soil and water sources, occupying land resources, and threatening the ecological environment, have continued to worsen, which has attracted great attention from organizations around the world. Research on biodegradable materials has become a worldwide hotspot. [0003] Plant starch is a natural biopolymer material, which has the characteristics of complete degradability, abundant source...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L67/04C08L67/02C08L23/06C08K5/11C08K5/20C08K5/1515
Inventor 孙敬善吴泽华王志强李成金刘进忠
Owner SHANDONG SHOUGUANG JUNENG GOLDEN CORN CO LTD
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