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Bio-based nylon composite PLA material and preparation method thereof

A technology of bio-based nylon and PA610, which is applied in the field of bio-based nylon composite PLA materials and its preparation, can solve the problems of slow crystallization speed of polylactic acid resin, large shrinkage rate of molded products, and restrictions on the application of engineering plastics, etc., and achieve good biodegradability properties, good heat resistance, improved discoloration resistance

Active Publication Date: 2019-11-19
DONGGUAN ZHONGYI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the slow crystallization speed of polylactic acid resin, large shrinkage rate of molded products, poor dimensional stability, brittleness, poor processing thermal stability, and poor durability of products, it limits its application as engineering plastics.

Method used

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  • Bio-based nylon composite PLA material and preparation method thereof
  • Bio-based nylon composite PLA material and preparation method thereof
  • Bio-based nylon composite PLA material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of bio-based nylon composite PLA material, comprises the raw material of following weight portion:

[0034]

[0035] Each part of the bio-based nylon is a mixture of PA56 and PA610 in a weight ratio of 0.8:1.0.

[0036] Each part of the modified glass fiber includes the following raw materials in parts by weight:

[0037]

[0038] The concentration of the hydrochloric acid is 0.5mol / L.

[0039] Described modified glass fiber is made by following method:

[0040] 1) Put the glass fiber infiltrated by the acid reagent into the drying device, heat to 300°C and bake for 60 minutes, cool to room temperature, and set aside;

[0041] 2) Soak the glass fiber cooled in step 1) in hydrochloric acid for 30 minutes, then rinse it with deionized water, dry it, and set aside;

[0042] 3) Add the glass fiber treated in step 2) into the mixture composed of fluorosilane coupling agent and γ-amino acid triethoxysilane and stir for 20 minutes, then add glacial acetic acid,...

Embodiment 2

[0052] A kind of bio-based nylon composite PLA material, comprises the raw material of following weight portion:

[0053]

[0054]

[0055] Each part of the bio-based nylon is a mixture of PA56 and PPA in a weight ratio of 0.8:1.0.

[0056] Each part of the modified glass fiber includes the following raw materials in parts by weight:

[0057]

[0058] The concentration of the hydrochloric acid is 0.75mol / L.

[0059] Described modified glass fiber is made by following method:

[0060] 1) Put the glass fiber infiltrated by the acid reagent into the drying device, heat to 325°C and bake for 67 minutes, cool to room temperature, and set aside;

[0061] 2) Soak the glass fiber cooled in step 1) in hydrochloric acid for 37 minutes, then rinse it with deionized water, dry it, and set aside;

[0062] 3) Add the glass fiber treated in step 2) into the mixed solution composed of fluorosilane coupling agent and γ-amino acid triethoxysilane and stir for 22 minutes, then add gl...

Embodiment 3

[0072] A kind of bio-based nylon composite PLA material, comprises the raw material of following weight portion:

[0073]

[0074] Each part of the bio-based nylon is a mixture of PA56 and PA1012 in a weight ratio of 0.8:1.0.

[0075] Each part of the modified glass fiber includes the following raw materials in parts by weight:

[0076]

[0077] The concentration of the hydrochloric acid is 1mol / L.

[0078] Described modified glass fiber is made by following method:

[0079]1) Put the glass fiber infiltrated by the acid reagent into the drying device, heat to 350°C and bake for 75 minutes, cool to room temperature, and set aside;

[0080] 2) Soak the glass fiber cooled in step 1) in hydrochloric acid for 45 minutes, then rinse it with deionized water, dry it, and set aside;

[0081] 3) Add the glass fiber treated in step 2) into the mixture composed of fluorosilane coupling agent and γ-amino acid triethoxysilane and stir for 23 minutes, then add glacial acetic acid, s...

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Abstract

The invention relates to the technical field of biomaterials, particularly to a bio-based nylon composite PLA material and a preparation method thereof, wherein the raw materials comprise, by weight,10-20 parts of a filler, 40-60 parts of polylactic acid, 1-5 parts of an antioxidant1010, 0.5-2 parts of a plasticizer, 4-8 parts of a compatibilizer, 4-8 parts of a coupling agent, 40-60 parts of a bio-based nylon, 1-5 parts of a polyolefin elastomer, 1-3 parts of modified glass fiber, and 0.01-1 part of glycidyl methacrylate. According to the present invention, the mechanical strength and the size stability of the PLA material are improved by filling the modified glass fiber with the bio-based nylon and the polylactic acid while the bio-based nylon and polylactic acid compounding process isfilled and grafted by using the filler and the high-toughness grafting agent glycidyl methacrylate, such that the bio-based nylon composite PLA material meets the performance requirements of engineering plastics and has good degradability.

Description

technical field [0001] The invention relates to the technical field of biomaterials, in particular to a bio-based nylon composite PLA material and a preparation method thereof. Background technique [0002] Polylactic acid (PLA) is a bio-based polymer material with high strength and modulus, which can be prepared from renewable biological resources (starch and sugar), getting rid of the dependence on petroleum resources, and its With its unique biodegradability and biocompatibility, it has attracted great attention. Now, the application of polylactic acid materials has developed from the initial packaging materials and other short-use cycle commodities and commodities that are difficult to recycle after use to agriculture, forestry and water. Industrial, civil engineering and construction industries, daily necessities and other products with a long life cycle, and even used as high-performance durable products such as automobiles and electronic appliances. However, due to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L77/06C08K13/06C08K9/06C08K9/02C08K7/14C08K3/04C08K3/36C08K7/26C08F283/02C08F283/04C08F220/32
CPCC08F283/02C08F283/04C08K2201/011C08L67/04C08L2205/025C08L2205/035C08L77/06C08K13/06C08K9/06C08K9/02C08K7/14C08K3/042C08K3/36C08K7/26
Inventor 李崀涂伟闫家国郭小丽章愿愿
Owner DONGGUAN ZHONGYI NEW MATERIAL TECH CO LTD
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