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Degradable plastic film composite material of butyl acrylate grafted modified starch and preparation method thereof

A technology of butyl acrylate and graft modification, applied in the field of composite materials, can solve problems such as insufficient mechanical properties, and achieve the effects of improving mechanical properties, good mechanical properties and good dispersibility

Inactive Publication Date: 2017-05-24
安徽省阜阳市国泰彩印包装有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

But there are insufficient mechanical properties

Method used

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Embodiment

[0021] A kind of degradable plastic film composite material of butyl acrylate graft modified starch, is made by the raw material of following weight part (g):

[0022] Starch 34, polyvinyl alcohol 32, urea 0.5, glycerol 3, L-proline 6, NaOH 3, nano TiO 2 7, manganese stearate 4, kaolin 8, chitosan 5, carboxymethyl cellulose sodium 6, attapulgite 12, graphene oxide 3, polyethyleneimine 3, vinyl acetate 7, butyl acrylate 5, over Ammonium sulfate 4, EVA 6, maleic anhydride 5, ethanol, acetic acid, deionized water in proper amount.

[0023] A kind of preparation method of the degradable plastic film composite material of butyl acrylate graft modified starch, it is characterized in that, carry out according to the following steps:

[0024] a. Dissolve L-proline 1:30 in deionized water, add NaOH and stir for 1 hour to obtain liquid A, and add nano-TiO 2 Disperse in deionized water at 1:20, sonicate for 1h to obtain liquid B, add liquid A dropwise to liquid B under magnetic stirrin...

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PUM

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Abstract

The invention discloses a degradable plastic film composite material of butyl acrylate grafted modified starch and a preparation process thereof. The degradable plastic film composite material is characterized in that starch, polyvinyl alcohol, urea, glycerol, L-proline, NaOH, nanometer TiO2, manganese stearate, kaolin, chitosan, sodium carboxymethylcellulose, attapulgite, graphene oxide, polyethyleneimine, vinyl acetate, butyl acrylate, ammonium persulfate, EVA, maleic anhydride and the like are used as raw materials. According to the degradable plastic film composite material, a composite catalyst is prepared by modifying the nanometer TiO2 with sodium proline, and a biodegradable composite film is prepared by using the kaolin as a bioactivator and the manganese stearate as a degradable accelerator. The sodium carboxymethylcellulose is added and mixed with the attapulgite and the chitosan so as to prepare the composite material. The starch is modified with the vinyl acetate, and electrostatic bonding force exists between the graphene oxide and the polyethyleneimine, so that the barrier property of the composite film is increased, and the oxygen permeability is reduced.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a degradable plastic film composite material grafted with butyl acrylate modified starch, and a preparation process thereof. Background technique [0002] In order to protect the environment and alleviate the shortage of petroleum resources, the use of petroleum-based plastic materials should be reduced, and bio-based degradable and environmentally friendly plastic materials should be developed and utilized. Biodegradable materials have excellent biocompatibility and environmental friendliness, and become The focus of research in the field of packaging materials. [0003] Cong Hongjie used starch (St) and polyvinyl alcohol (PVA) as the main raw materials in his master's degree thesis "Preparation and Thermal Decomposition Kinetics of Degradable Plastic Films", adding urea (crosslinking agent), glycerin Alcohol (plasticizer), the St / PVA completely biodegradable plastic film was...

Claims

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Application Information

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IPC IPC(8): C08F251/00C08F220/18C08F285/00C08F218/08C08L51/00C08L5/08C08L1/28C08L29/04C08L23/08C08K13/06C08K9/08C08K3/34C08K9/04C08K3/22C08K3/04C08K5/098C08J5/18
CPCC08F251/00C08F285/00C08J5/18C08J2351/00C08J2401/28C08J2405/08C08J2423/08C08J2429/04C08K2201/011C08K2201/014C08L51/00C08L2201/06C08L2203/16C08L2205/035C08F218/08C08L5/08C08L1/286C08L29/04C08L23/0853C08K13/06C08K9/08C08K3/346C08K9/04C08K2003/2241C08K3/04C08K5/098C08F220/1804
Inventor 丁自峰
Owner 安徽省阜阳市国泰彩印包装有限公司
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