Air-isolating type environment-friendly composite material as well as preparation method and application thereof

A composite material and environmental protection technology, applied in the field of degradable plastics, can solve the problems of poor gas barrier performance and inability to meet the preservation function, etc., and achieve the effects of good environmental protection, good mechanical performance and high degree of controllability

Inactive Publication Date: 2017-12-22
青岛百佳创想新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the increasing demand in the field of food preservation, PLA has been widely concerned as a green and environmental protection fi

Method used

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  • Air-isolating type environment-friendly composite material as well as preparation method and application thereof
  • Air-isolating type environment-friendly composite material as well as preparation method and application thereof

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preparation example Construction

[0056] In a second aspect, the present invention provides a method for preparing the above gas-insulating and environment-friendly composite material, comprising the following steps:

[0057] (a) PLA, nano-titanium nitride, anti-hydrolysis stabilizer and chain extender are mixed uniformly and granulated to obtain PLA / nano-titanium nitride masterbatch;

[0058] (b) PLA / nano-titanium nitride masterbatch, PLA, PBAT, polypropylene carbonate, filler, thermoplastic elastomer, lubricant and chain extender are mixed uniformly and then granulated to obtain the gas-insulated and environmentally friendly composite material.

[0059] The above preparation method has simple process, easy operation, high controllability, and is suitable for mass production. The gas-insulating and environmentally friendly composite material obtained by this method has the advantages of good environmental protection, high gas barrier rate, good thermal stability and good mechanical properties. .

[0060] In...

Embodiment 1

[0068] A gas-insulating and environmentally friendly composite material, mainly prepared from the following raw materials in parts by weight: 20 parts of PLA, 20 parts of PBAT, 5 parts of polypropylene carbonate, 1 part of PLA / nano-titanium nitride masterbatch, 3 parts of silicon dioxide 1 part of syndiotactic l,2-polybutadiene, 0.5 part of erucamide and 1 part of chain extender;

[0069] The PLA / nano-titanium nitride masterbatch is mainly prepared from the following raw materials in parts by weight: 80 parts of PLA, 0.3 part of nano-titanium nitride, 0.3 part of anti-hydrolysis stabilizer and 0.5 part of chain extender.

Embodiment 2

[0071] A gas-insulating and environmentally friendly composite material, mainly prepared from the following raw materials in parts by weight: 35 parts of PLA, 28 parts of PBAT, 8 parts of polypropylene carbonate, 3 parts of PLA / nano-titanium nitride masterbatch, and 7 parts of talcum powder , 2 parts of syndiotactic l,2-polybutadiene, 0.6 parts of EBS and 1.4 parts of chain extender;

[0072] The PLA / nano-titanium nitride masterbatch is mainly prepared from the following raw materials in parts by weight: 88 parts of PLA, 0.3 part of nano-titanium nitride, 0.3 part of anti-hydrolysis stabilizer and 0.8 part of chain extender.

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Abstract

The invention relates to the field of degradable plastics, and in particular provides an air-isolating type environment-friendly composite material as well as a preparation method and application thereof. The air-isolating type environment-friendly composite material is mainly prepared from the following raw materials in parts by weight: 20-60 parts of polylactic acid (PLA), 20-40 parts of poly(butyleneadipate-co-terephthalate) (PBAT), 5-20 parts of poly(propylene carbonate) (PPC), 1-10 parts of PLA/nano-titanium nitride masterbatch, 3-15 parts of filler, 1-5 parts of thermoplastic elastomer, 0.5-1 part of a lubricating agent and 1-3 parts of a chain extender, wherein the PLA/nano-titanium nitride masterbatch is mainly prepared from the following raw materials in parts by weight: 80-120 parts of PLA, 0.3-1.2 parts of nano-titanium nitride, 0.3-1.2 parts of a hydrolysis-resistant stabilizer and 0.5-1.5 parts of a chain extender. The composite material has the advantages of being good in environmental protection property, high in gas barrier property, good in thermal stability and good in mechanical performance.

Description

technical field [0001] The invention relates to the field of degradable plastics, in particular to a gas-insulating and environment-friendly composite material, a preparation method and an application thereof. Background technique [0002] PLA (Polylactic Acid) is a new type of bio-based and biodegradable material made from starch raw material derived from renewable plant resources such as corn. Glucose is obtained through saccharification of starch raw materials, and then high-purity lactic acid is produced by fermentation of glucose and certain strains, and polylactic acid with a certain molecular weight is synthesized by chemical synthesis; it has good biodegradability and can be recycled in nature after use. Microorganisms degrade completely under specific conditions, and finally generate carbon dioxide and water without polluting the environment, which is very beneficial to protecting the environment and is recognized as an environmentally friendly material. [0003] P...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L69/00C08K13/02C08K3/36C08K5/20
CPCC08L67/04C08J3/226C08J2367/02C08J2367/04C08J2467/04C08K2201/011C08L67/02C08L2201/06C08L2201/08C08L2201/14C08L2203/16C08L2205/02C08L2205/025C08L2205/035C08L2207/04C08L69/00C08K13/02C08K5/20C08K3/28
Inventor 李元婷姚洪伟
Owner 青岛百佳创想新材料有限公司
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