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Resin/clay nano composite material and preparation process thereof

A technology of nano-composite materials and clay, applied in the field of materials, to achieve the effects of easy-to-obtain raw materials, suitable for popularization and application, and simple processes

Inactive Publication Date: 2006-06-28
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the patent literature on the preparation of nanocomposites by blending carbon dioxide-based resins with clay.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: BioCO 2 96 parts of TM 100 carbon dioxide-based resin (carbon dioxide-propylene oxide copolymer) and 4 parts of organic rectorite (particle size: 300 mesh, interlayer distance: 3.1nm) were mixed in a mixer for 15 minutes at a speed of 70 r / min , forming a homogeneous mixing system. The mixed material is placed in a twin-screw extruder for melt extrusion molding. The technological conditions are as follows: the length-to-diameter ratio of the screw is 13, the compression ratio is 2:1, and the rotational speed is 60r / min. Extrusion temperature: 40°C in the feeding section, 60°C in the compression section, 120°C in the homogenization section, and 140°C in the nose and die. The carbon dioxide-based resin / organic rectorite nanocomposite material is obtained by cooling after granulation. The mechanical properties of the composite material are as follows: tensile strength 18.90MPa, impact strength 28.26kJ / m 2 , 143.2% and 48.6% higher than pure carbon dioxide-pr...

Embodiment 2

[0036] Example 2: BioCO 2 95 parts of TM 200 carbon dioxide-based resin (carbon dioxide-propylene oxide-ethylene oxide terpolymer) and 5 parts of organic montmorillonite (particle size: 200 mesh, interlayer distance: 2.8nm) are mixed in a mixer Stir for 20 minutes at a speed of 60r / min to form a uniform mixing system. The mixed material is placed in a twin-screw extruder for melt extrusion molding. The process conditions are as follows: the length-to-diameter ratio of the screw is 16, the compression ratio is 1.5:1, and the rotational speed is 50 r / min. Extrusion temperature: the feeding section is 30°C, the compression section is 50°C, the homogenization section is 110°C, and the head and die are 130°C. After granulation and cooling, the carbon dioxide-based resin / organic montmorillonite nanocomposite material is obtained. The mechanical properties of the composite material are as follows: tensile strength 22.91MPa, impact strength 22.63kJ / m 2 , 194.9% and 20.5% higher th...

Embodiment 3

[0037] Example 3: BioCO 2 92 parts of TM 300 carbon dioxide-based resin (carbon dioxide-propylene oxide-epoxycyclohexane terpolymer) and 8 parts of montmorillonite (particle size: 200 mesh, layer spacing: 1.0nm) are mixed in a mixer Stir for 10 minutes at a speed of 80r / min to form a uniform mixing system. The compounded materials were placed in a twin-screw extruder. The technological conditions of extrusion molding: the length-to-diameter ratio of the screw is 15, the compression ratio is 2.5:1, and the rotational speed is 60r / min. Extrusion temperature: feeding section 40°C, compression section 60°C, homogenizing section 120°C, head and die 140°C. After granulation, cool to room temperature to prepare carbon dioxide-based resin / montmorillonite nanocomposite material. The mechanical properties of the composite material are as follows: tensile strength 19.14MPa, impact strength 22.56kJ / m 2 , 146.3% and 18.6% higher than pure carbon dioxide-propylene oxide-epoxycyclohexane...

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Abstract

The invention relates to carbon dioxide based resin / layer silicate clay nm compounding material that could be biology degraded. The process includes the following steps: mixing the carbon dioxide based resin with layer silicate clay powder at the condition of certain temperature and rotating speed; extruding to grain under certain temperature and pressure. The benefit of the invention is that it could improve the mechanical property and thermal property of carbon dioxide based resin, and it has simple technology.

Description

technical field [0001] The invention relates to the field of materials, in particular to a carbon dioxide-based resin / layered silicate clay nanocomposite material and a preparation method thereof. Background technique [0002] Carbon dioxide-based resins obtained by copolymerization of carbon dioxide and epoxy compounds are a new class of polymer materials, and the most concerned ones are copolymers of carbon dioxide and propylene oxide, ethylene oxide, etc. Carbon dioxide-based resin, as a fully biodegradable plastic, is a substitute for ordinary plastics currently used, and can be used to solve the problem of "white garbage" that is difficult to degrade and pollutes the environment. However, due to its poor mechanical properties and low glass transition temperature, its application range is limited when it is used alone as a material. [0003] In order to improve the performance of the resin and expand its application range, the resin needs to be modified. Commonly used ...

Claims

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Application Information

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IPC IPC(8): C08L101/02B29C47/40C08K3/34
Inventor 余剑英万春杰夏春
Owner WUHAN UNIV OF TECH
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