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PBS composite material containing PBST toughening agent and preparation method of composite material

A composite material and toughening agent technology, applied in the field of bio-based degradable materials, can solve the problems of incomplete degradation, large amount of plasticizer added, high cost, etc., and achieve the effect of reducing white pollution and improving thermal aspects

Pending Publication Date: 2019-06-11
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the existing technical problems such as large amount of plasticizer added, high cost and incomplete degradation, and provide a PBS composite material containing PBST toughening agent and a preparation method thereof. PBST can significantly improve the processing performance of PBS, reduce the cost, and realize the complete degradation of PBS composite materials

Method used

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  • PBS composite material containing PBST toughening agent and preparation method of composite material

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Embodiment 1

[0023] This embodiment provides a preparation method of succinic acid / butanediol / 1,5-pentanediol copolyester, specifically as follows:

[0024] 1) Add succinic acid, butanediol, and 1,5-pentanediol according to the acid-alcohol molar ratio of 1:1.2, and the mass percentages of butanediol and 1,5-pentanediol are 80% and 20% , in the reactor in two stages: first stage esterification reaction temperature 200°C, reaction time 2h; second stage polycondensation reaction temperature 200°C, reaction time 2h, namely PBST-1.

[0025] 2) Add succinic acid, butanediol, and 1,5-pentanediol according to the acid-alcohol molar ratio of 1:1.2, and the mass percentages of butanediol and 1,5-pentanediol are 90% and 10% , in the reactor in two stages: first stage esterification reaction temperature 200°C, reaction time 1h; second stage polycondensation reaction temperature 200°C, reaction time 3h, namely PBST-2.

[0026] 3) Add succinic acid, butanediol, and 1,5-pentanediol according to the aci...

Embodiment 2

[0032] The present embodiment provides a kind of preparation method of the PBS composite material containing PBST toughening agent, and it comprises the steps:

[0033] Put 5% of PBST-1 and 95% of PBS, which account for the total mass percentage of the PBS composite material, into a mixer and mix evenly, then melt and blend the PBST plasticizer and PBS resin at 130-180°C, inject The pellets of the PBS composite material containing the PBST toughening agent can be obtained after being cooled and pelletized.

Embodiment 3

[0035] The present embodiment provides a kind of preparation method of the PBS composite material containing PBST toughening agent, and it comprises the steps:

[0036] PBST-1, which accounts for 3% of the total mass percentage of the PBS composite material, and PBS, which accounts for 95%, are put into a mixer and mixed evenly, and then the PBST plasticizer and PBS resin are melt blended at 130-180 ° C, The pellets of the PBS composite material containing the PBST toughening agent can be obtained after injection, cooling, and pelletizing.

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Abstract

The invention provides a polybutylene succinate (PBS) composite material containing a PBST toughening agent and a preparation method of the composite material. The composite material comprises PBS andPBST, wherein a content of the PBST is 0.1-10% by weight. According to the method provided by the invention, the PBST with a lower content is added to prepare the PBS composite material, so that thecomposite material has good improvement in compatibility, mechanics and thermology; and the composite material is a completely-degradable material, and can reduce the white pollution problem caused bynon-degradable plastics and realize full bio-based degradability.

Description

technical field [0001] The invention relates to a PBS composite material containing a PBST toughening agent and a preparation method thereof, belonging to the technical field of bio-based degradable materials. Background technique [0002] Polybutylene succinate (PBS) is extremely versatile as a biodegradable material, and can be used in the fields of packaging, medical hygiene and agriculture. German APACK company has developed PBS degradable plastic film with good sealing performance, which is widely used in food packaging. Shi XQ et al. concluded that PBS is harmless to human health, and it will be completely decomposed and absorbed after entering the human body for a period of time. Therefore PBS can be applied to various man-made materials such as surgical sutures. In addition, PBS can also be applied to disposable catering utensils, agricultural films, planting utensils and vegetation nets. Nowadays, with the high requirements for degradable materials in various ind...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08G63/16C08G63/85C08G63/86
Inventor 任亮张成龙鞠格平张明耀任阳张宇李昆育李怡霖
Owner CHANGCHUN UNIV OF TECH
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