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Preparation method of poly(butylene succinate)/organic montmorillonite nano-composite material

A technology of polybutylene succinate and nano-composite material is applied in the field of biodegradable materials, which can solve the problem of restricting the expansion and application of fully biodegradable materials, hindering the application of polybutylene succinate, and affecting the application of polybutylene succinate. Butanediol ester performance and other issues, to achieve the effect of obvious toughening effect, reduced crystallinity, and increased crystallization temperature

Inactive Publication Date: 2013-04-03
CHINA PACKAGING RES & TEST CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polybutylene succinate (hereinafter referred to as PBS) is a good fully biodegradable material, but PBS is a crystalline polymer, and the degree of crystallinity, the difference in crystal form and crystal structure will affect the quality of polybutylene succinate. The properties of esters, thus affecting their application in packaging products
In addition, one of the disadvantages of PBS is that the melt viscosity and melt strength are low, and at the same time, it is brittle, which hinders the application of PBS in the packaging field. Application of Butylene Glycol Acid
[0003] Moreover, compared with general-purpose plastics, the production cost of PBS is higher, which also limits its expanded application as a fully biodegradable material to a certain extent.

Method used

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  • Preparation method of poly(butylene succinate)/organic montmorillonite nano-composite material
  • Preparation method of poly(butylene succinate)/organic montmorillonite nano-composite material

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Embodiment 1

[0024] A preparation method of polybutylene succinate / organic montmorillonite nanocomposite, the steps are:

[0025] (1) Add OMMT to dry PBS, the dosage of OMMT is 1% (wt) of PBS, after mixing evenly, the OMMT / PBS mixture is obtained;

[0026] (2) Put the OMMT / PBS mixture into the twin-screw extruder for extrusion, the screw speed is 30rpm, and the temperature of each section of the twin-screw extruder is respectively set as: feeding section 100°C; melting section 15°C; homogenization section 120°C; The machine head is at 115°C. After extrusion, it is water-cooled and pelletized to obtain the product.

Embodiment 2

[0028] The dosage of OMMT is 2% (wt) of PBS, and its preparation method is the same as in Example 1.

Embodiment 3

[0030] The dosage of OMMT is 3% (wt) of PBS, and its preparation method is the same as in Example 1.

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Abstract

The invention discloses a preparation method of a poly(butylene succinate) / organic montmorillonite nano-composite material The preparation method comprises the following steps of: (1) adding organic montmorillonite into dried poly(butylene succinate), wherein feeding amount of the organic montmorillonite (OMMT) is 1-5wt% of the poly(butylene succinate) (PBS); uniformly mixing to obtain a mixture of the poly(butylene succinate) and the organic montmorillonite; and (2) adding the mixture of the poly(butylene succinate) and the organic montmorillonite into a screw extruder, and extruding; setting the rotating sped of a screw at 25-35rpm; and after extruding, water-cooling and slicing to obtain a product. The PBS / organic montmorillonite nano-composite material disclosed by the invention keeps the property of complete biodegradation of the poly(butylene succinate), and the added catalyst and other materials are biodegradable materials, so that the final product is completely degraded by the microorganisms in the soil.

Description

technical field [0001] The invention belongs to the field of biodegradable materials, in particular to a preparation method of a polybutylene succinate / organic montmorillonite nanocomposite material. Background technique [0002] Polybutylene succinate (hereinafter referred to as PBS) is a good fully biodegradable material, but PBS is a crystalline polymer, and the degree of crystallinity, the difference in crystal form and crystal structure will affect the quality of polybutylene succinate. The properties of esters affect their application in packaging products. In addition, one of the disadvantages of PBS is that the melt viscosity and melt strength are low, and at the same time, it is brittle, which hinders the application of PBS in the packaging field. Application of Butylene Glycol Acid. [0003] Moreover, compared with general-purpose plastics, the production cost of PBS is higher, which also limits its expanded application as a fully biodegradable material to a cert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K3/34
Inventor 刘卉揣成智韩雪山
Owner CHINA PACKAGING RES & TEST CENT
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