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A kind of PBS composite material and preparation method thereof

A composite material and composite powder technology, applied in the field of polymer material processing and preparation, can solve the problems of improved crystalline properties, heat resistance and biodegradability, no improvement in elongation at break and toughness, and inability to improve the mechanical properties of PBS, etc. Achieve the effect of improved biodegradability, easy implementation of the operation process, and reduced processing torque

Active Publication Date: 2021-02-12
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method improves the tensile strength of PBS to a certain extent, but does not improve its elongation at break and toughness, and consumes a large amount of solvents and additives during the preparation process, making post-processing difficult
[0006] In the above method of modifying PBS, its strength and modulus are often sacrificed in the process of improving the toughness of PBS, and the mechanical properties of PBS cannot be comprehensively improved, and the crystallization performance, heat resistance and biodegradability of the PBS are not improved. improved, which limits its application in some fields

Method used

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  • A kind of PBS composite material and preparation method thereof
  • A kind of PBS composite material and preparation method thereof
  • A kind of PBS composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Put 100 parts of dried (mass parts, the same below) PBS, 1 part of reduced graphene oxide / organic salt microsphere composite powder, and 0.02 part of carbodiimide anti-hydrolysis agent UN-150 in the Haake torque rheometer PBS composites were prepared by high temperature melt blending.

[0053] Haake torque rheometer processing conditions: working temperature is 150°C, rotating speed is 70rpm, mixing for 10min until the mixing torque is balanced.

[0054] Wherein, the preparation method of the reduced graphene oxide / organic salt microsphere composite powder is as follows:

[0055] 1. Add 13.32g (0.175mol) 1,3-propanediol, 15.78g (0.175mol) 1,4-butanediol, 5.31g ( 0.050mol) diethylene glycol, 9.61g (0.050mol) tripropylene glycol, 20.00g (0.050mol) PPG-400 and 24.80g (0.210mol) succinic acid, 42.48g (0.210mol) sebacic acid And 11.71g (0.090mol) itaconic acid, 10.45g (0.090mol) fumaric acid, add 76.7mg antioxidant 1010 and 76.7mg antioxidant 168, 153.4mg hydroquinone agai...

Embodiment 2

[0063] 100 parts of dry PBS, 3 parts of reduced graphene oxide / organic salt microsphere composite powder, and 0.06 part of carbodiimide anti-hydrolysis agent UN-150 were prepared by high-temperature melt-blending in a Haake torque rheometer. Obtain PBS composite material.

[0064] Haake torque rheometer processing conditions: working temperature is 150°C, rotating speed is 70rpm, mixing for 10min until the mixing torque is balanced.

Embodiment 3

[0066] Dry 100 parts of PBS, 5 parts of reduced graphene oxide / organic salt microsphere composite powder, and 0.1 part of carbodiimide anti-hydrolysis agent UN-150 were prepared by high-temperature melt-blending in a Haake torque rheometer. Obtain PBS composite material.

[0067] Haake torque rheometer processing conditions: working temperature is 150°C, rotating speed is 70rpm, mixing for 10min until the mixing torque is balanced.

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Abstract

The invention belongs to the technical field of polymer material processing and preparation, and in particular relates to a polybutylene succinate composite material and a preparation method thereof. The composition includes the following components by weight: 100 parts of PBS, 1-15 parts of reduced nano-carbon oxide material / organic salt microsphere composite powder, and 0.02-0.30 parts of anti-hydrolysis agent. The reduced nano-carbon oxide material / organic salt microsphere composite powder has good compatibility with PBS, and can realize good dispersion of the reduced nano-carbon oxide material in PBS, and can endow PBS with excellent Excellent electrical and thermal conductivity; significantly improved the crystallinity, crystallization speed and heat resistance of PBS, improved the processing performance of PBS, reduced its maximum processing torque, and saved energy consumption; the PBS composite material prepared by the present invention is through simple physical It is prepared by melt blending, the process is simple, and the operation process is easy to implement.

Description

technical field [0001] The invention belongs to the technical field of polymer material processing and preparation, and in particular relates to a PBS composite material and a preparation method thereof. Background technique [0002] Polybutylene succinate (PBS) is obtained by condensation polymerization of succinic acid and butanediol. The resin is milky white, odorless and tasteless, and is easily metabolized by various microorganisms in nature or enzymes in animals and plants. Decomposed into carbon dioxide and water, it is a typical biodegradable material, which can solve the environmental pollution caused by traditional plastics; at the same time, PBS has good biocompatibility and bioabsorbability, so it is also used in medical materials, drug carriers and other fields. Good application prospects. [0003] However, a series of problems such as poor notched impact strength, slow crystallization rate, and slow biodegradation rate of PBS limit the further promotion and ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L67/06C08K5/29C08K3/04C08F283/01C08F222/14C08F2/48C08G63/676
Inventor 王庆国王兆山王童瑶黎永轩唐卓华
Owner QINGDAO UNIV OF SCI & TECH