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Full-biodegrade composite material taking oriented poly butylene succinate as nucleating agent and preparation method of full-biodegrade composite material

A technology of polybutylene succinate and polybutylene succinate, which is applied in the field of fully biodegradable composite materials and its preparation, can solve the problems of toughness, elongation at break, strength defects, biodegradation rate, The problem of high crystallinity

Inactive Publication Date: 2016-10-12
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As an aliphatic polyester, polybutylene succinate (PBS) has the advantages of high thermal stability and high molecular weight, but its high symmetry and high crystallinity affect its biodegradation rate, and its There are defects in toughness, elongation at break, strength, etc.

Method used

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  • Full-biodegrade composite material taking oriented poly butylene succinate as nucleating agent and preparation method of full-biodegrade composite material
  • Full-biodegrade composite material taking oriented poly butylene succinate as nucleating agent and preparation method of full-biodegrade composite material
  • Full-biodegrade composite material taking oriented poly butylene succinate as nucleating agent and preparation method of full-biodegrade composite material

Examples

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Effect test

Embodiment 1

[0022] Take polybutylene succinate as the preparation method of the polybutylene adipate composite material of nucleating agent, it is characterized in that, comprises the following steps:

[0023] 1) Dry polybutylene adipate under vacuum at 40°C for 3 hours, and dry polybutylene succinate under vacuum at 100°C for 3 hours;

[0024] 2) Mechanically blend 30% polybutylene adipate and 70% polybutylene succinate, put the mixed powder into a screw extruder, blend and extrude to obtain a composite material , the temperature of the screw extruder is 90 to 200°C;

[0025] 3) The composite material of polybutylene adipate and polybutylene succinate was rolled and pressed on one side at a processing temperature of 115°C; the pressure of the composite material was 150 Pa, and it was subjected to a single The pressure time is 150s;

[0026] 4) Take out the formed composite material and heat treat it at 40°C.

[0027] The tensile strength of the composite material was tested with a ten...

Embodiment 2

[0029] The preparation method of the fully biodegradable composite material using orientation polybutylene succinate as a nucleating agent is characterized in that it comprises the following steps:

[0030] 1) Dry the polybutylene adipate under vacuum at 25°C for 8 hours, and dry the oriented polybutylene succinate under vacuum at 60°C for 8 hours;

[0031] 2) Mechanically blend 50% polybutylene adipate and 50% polybutylene succinate, put the mixed powder into a screw extruder, blend and extrude to obtain a composite material , the temperature of the screw extruder is 90 to 200°C;

[0032] 3) Perform single-side rolling and plate pressing on the composite material of polybutylene adipate and polybutylene succinate at a processing temperature of 116°C; the pressure of the composite material is 400Pa, subjected to a single constant The pressure time is 170s;

[0033] 4) Take out the formed composite material and heat treat it at 30°C.

[0034] The tensile strength of the comp...

Embodiment 3

[0036] The preparation method of the fully biodegradable composite material using orientation polybutylene succinate as a nucleating agent is characterized in that it comprises the following steps:

[0037] 1) Dry the polybutylene adipate under vacuum at 25°C for 8 hours, and dry the oriented polybutylene succinate under vacuum at 60°C for 8 hours;

[0038] 2) Mechanically blend 70% polybutylene adipate and 30% polybutylene succinate, put the mixed powder into a screw extruder, blend and extrude to obtain a composite material , the temperature of the screw extruder is 90 to 200°C;

[0039] 3) The polybutylene adipate and polybutylene succinate composite material is rolled and pressed on one side at 118°C; the pressure of the composite material is 600Pa, and the time for a single constant pressure is 200s;

[0040] 4) Take out the formed composite material and heat treat it at 0°C.

[0041] The tensile strength of the composite was tested with a tensile machine; its thermody...

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Abstract

The invention provides a full-biodegrade composite material taking oriented poly butylene succinate as a nucleating agent and a preparation method of the full-biodegrade composite material. The full-biodegrade composite material comprises the following components in mass percent: 30-70% of poly butylene succinate and 70-30% of poly ethylene succinate. The preparation method comprises the following steps: 1) drying poly ethylene succinate in vacuum at 25-40 DEG C, and drying poly butylene succinate in vacuum at 60-100 DEG C; 2) putting 0-100% of poly ethylene succinate and 0-100% of poly butylene succinate into a screw extruder, and carrying out blending and extruding to obtain a composite material; 3) carrying out single-side rolling and plate pressing on the composite material of poly ethylene succinate and poly butylene succinate at appropriate processing temperature; and 4) taking out the molded composite material, and carrying out heat treatment on the molded composite material at the temperature below the melting point of poly ethylene succinate, so as to obtain the composite material. The full-biodegrade composite material is simple and feasible in process, low in cost, easy to realize industrialization and obvious in economic value.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a fully biodegradable composite material using oriented polybutylene succinate as a nucleating agent and a preparation method thereof. Background technique [0002] As an aliphatic polyester, polybutylene succinate (PBS) has the advantages of high thermal stability and high molecular weight, but its high symmetry and high crystallinity affect its biodegradation rate, and its There are defects in toughness, elongation at break, strength, etc. As a polymorphic aliphatic polyester material, polybutylene adipate (PBA) has excellent biodegradability and is widely used in food packaging, agricultural mulch, biomedicine and other fields. It can be used as an environment-friendly degradable material. It has a low melting point and a good degradation rate. By making PBA and PBS composite materials, not only can the defects of PBS toughness, elongation a...

Claims

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Application Information

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IPC IPC(8): C08L67/02
CPCC08L67/02C08L2201/06C08L2201/08C08L2205/025
Inventor 王海军高治进王帅毅
Owner SHAANXI UNIV OF SCI & TECH
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