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Biodegradable color master batch and preparation method thereof

A biodegradable and color masterbatch technology, applied in the field of polymer material modification, can solve the problems of poor toughness, low strength and modulus, slow degradation rate, etc., to improve toughness and elongation at break, improve strength and mechanical properties performance, the effect of improving the storage modulus

Active Publication Date: 2021-12-17
漯河市瑞博塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Polylactic acid also has good biocompatibility, but its disadvantages are poor toughness, slow degradation rate, strong hydrophobicity, and lack of reactive side chain groups, which limit its application in some occasions
The methods of polymer copolymerization, polymer compounding and polymer blending are the commonly used methods to overcome the defects of polylactic acid materials. Polybutylene adipate-terephthalate copolymer is a completely degradable aliphatic aromatic Copolyester has good toughness and fast biodegradation rate, but its strength and modulus are low, which also limits its promotion and application

Method used

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  • Biodegradable color master batch and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of modified polylactic acid, specifically comprising the steps of:

[0041] (1) Place the aluminum oxide with a lamellar structure in a drying oven for drying treatment, the drying temperature is 80° C., the drying time is 8 hours, and the particle size of the aluminum oxide with a lamellar structure is 40 μm;

[0042] (2) Mix the dried lamellar-structured alumina and anhydrous alcohol according to a certain mass ratio, place them in a container for ultrasonic dispersion, and obtain a uniformly dispersed alumina dispersion, lamellar-structured alumina The mass ratio to absolute alcohol is 1:2, the ultrasonic dispersion treatment temperature is 40°C, and the time is 2 hours;

[0043] (3) mixing the aluminate coupling agent and n-butanol according to a certain mass ratio, adding the aluminum oxide dispersion obtained in step (2) to the mixed aluminate coupling agent and n-butanol solution, Then carry out constant temperature and uniform stirring. Aft...

Embodiment 2

[0046] A preparation method of a biodegradable color masterbatch, specifically comprising the steps of:

[0047] (1) The modified polylactic acid, polybutylene adipate-terephthalate, fillers, and nano-antibacterial particles in the raw materials are vacuum-dried respectively, and the modified polylactic acid and polyadipate- The drying treatment temperature of butylene terephthalate is 60°C for 5 hours, and the drying treatment temperature for fillers and nano antibacterial particles is 80°C for 4 hours;

[0048] (2) Weigh the raw materials of each component according to the following mass ratio, add them to the mixer for uniform mixing, modify the modified polylactic acid 60%, polybutylene adipate-terephthalate 20%, filler 6%, pigment 4%, compatibilizer 5%, nano antibacterial particles 1.0%, plasticizer and / or lubricant and / or filler 4%, the speed of mixing and stirring is 1000r / min, and mixing time is 8 minutes, The mixing temperature is 80°C;

[0049] (3) Add the raw mate...

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Abstract

The invention relates to biodegradable color master batch and a preparation method thereof. A polylactic acid material is modified, and nano diamond particles and a kaolin tubular nano material are added in the process of preparing the color master batch, so that a compact network structure is formed in the prepared color master batch material; and the properties such as strength, toughness and modulus of the color master batch material are improved. The nano antibacterial particles are added into the color master batch material, so that surrounding bacteria can be effectively killed, and the application range and scene of the color master batch material are widened.

Description

technical field [0001] The invention relates to the technical field of polymer material modification, in particular to a biodegradable color masterbatch and a preparation method thereof. Background technique [0002] With the continuous development of the plastics industry, the demand for plastics has also increased significantly. Since plastic products are not easy to decompose and recycle, their waste has also become harmful white garbage, polluting the environment. [0003] Biodegradable plastic materials can be widely used in various industries due to their good biodegradability. The ideal biodegradable plastic is a polymer material with excellent performance, which can be completely decomposed by microorganisms in the environment after being discarded, and finally decomposed into inorganic substances and becomes an integral part of the carbon cycle in nature. At present, fully biodegradable plastics are mainly made from natural polymers (such as starch, cellulose, chi...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08K9/06C08K3/04C08K3/34C08K7/00C08K9/04C08K3/22C08K3/08C08K13/06C08J3/22
CPCC08J3/226C08J2467/02C08J2467/04C08K9/06C08K3/04C08K3/346C08K2201/011C08K2201/005C08K2201/016C08K7/00C08K9/04C08K2003/2241C08K2003/0806C08K13/06
Inventor 赵毅立李艳秋赵建伟赵辰
Owner 漯河市瑞博塑胶有限公司