Polycarbonate composite material and preparation method thereof

A composite material and polycarbonate technology, which is applied in the field of polycarbonate composite material and its preparation, can solve the problems of poor strength and folding resistance of aluminum foil, difficult to meet the needs of packaging aesthetics, and no environmental protection characteristics, and achieves protection. The effect of no scratches, good tensile properties, good mechanical properties

Inactive Publication Date: 2014-10-29
CHONGQING RUANS PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Existing packaging materials with oxygen barrier properties mainly include aluminum foil. Although aluminum foil has good heat resistance, its strength and bending resistance are not good. And because the aluminum foil is opaque, it is difficult to meet the demand in terms of the aesthetics of the packaging
[0003]Because the existing packaging materials often require good mechanical strength and the internal products can be seen through the packaging, based on the opacity and reflective properties of aluminum foil, aluminum foil is limited in many Applications in the field of packaging
It is not environmentally friendly and difficult to recycle, so people are constantly researching its alternatives

Method used

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  • Polycarbonate composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Weigh 55 kg of trimethylene carbonate, 10 kg of silicon dioxide with a diameter of 80 nanometers, 8 kg of glycerol and 2 kg of glutaraldehyde, mix evenly, adjust the pH to 8.2, and place it in a nitrogen atmosphere at 0.5 atm at 110 °C, Stir for 3 hours at a stirring rate of 250 rpm, cool to room temperature, and set aside;

[0028] (2) Adjust the pH of the product in step 1 to 7, add 10kg of glyceryl tristearate, 17kg of hydroxyethyl methacrylate and 20kg of polyethylene glycol with an average molecular weight of 8000, add it to a three-blade screw machine, and stir evenly , to obtain polycarbonate composites.

[0029] The polycarbonate composite material is made into a length of 10cm, a width of 1cm, and a thickness of 2mm. The performance test results are shown in Table 1.

Embodiment 2

[0031] (1) Weigh 70 kg of trimethylene carbonate, 20 kg of silicon dioxide with a diameter of 70 nanometers, 7 kg of glycerol and 3 kg of glutaraldehyde, mix evenly, adjust the pH to 8.2, and place it in a nitrogen atmosphere at 0.5 atm at 120 ° C. Stir for 5 hours at a stirring rate of 200 rpm, cool to room temperature, and set aside;

[0032] (2) Adjust the pH of the product in step 1 to 7, add 15kg of glyceryl tristearate, 20kg of hydroxyethyl methacrylate and 18kg of polyethylene glycol with an average molecular weight of 7000, add it to a three-blade screw machine, and stir evenly , to obtain polycarbonate composites.

[0033] The polycarbonate composite material is made into a length of 10cm, a width of 1cm, and a thickness of 2mm. The performance test results are shown in Table 1.

Embodiment 3

[0035] (1) Weigh 60kg of trimethylene carbonate, 16kg of silicon dioxide with a diameter of 50nm, 5kg of glycerol and 5kg of glutaraldehyde, mix evenly, adjust the pH to 8.2, and place it in a nitrogen atmosphere at 0.5atm110°C, Stir for 4 hours at a stirring rate of 250 rpm, cool to room temperature, and set aside;

[0036] (2) Adjust the pH of the product in step 1 to 7, add 12kg of glyceryl tristearate, 15kg of hydroxyethyl methacrylate and 15kg of polyethylene glycol with an average molecular weight of 6000, add it to a three-blade screw machine, and stir evenly , to obtain polycarbonate composites.

[0037] The polycarbonate composite material is made into a length of 10cm, a width of 1cm, and a thickness of 2mm. The performance test results are shown in Table 1.

[0038] Table 1

[0039]

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Abstract

The invention discloses a polycarbonate composite material and a preparation method thereof. The polycarbonate composite material is prepared from the following components in parts by weight: 55-70 parts of trimethylene carbonate, 15-20 parts of polyethyleneglycol, 15-20 parts of hydroxyethyl methacrylate, 10-15 parts of glyceryl tristearate, 10-20 parts of silicon dioxide, 5-8 parts of glycerol and 2-5 parts of glutaraldehyde. The polycarbonate composite material prepared by the method has favorable tensile property and favorable barrier property, can be used as a thin-film material, and has favorable light transmittance. Meanwhile, the preparation method is simple, and is easy for film formation and suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a polycarbonate composite material and a preparation method thereof. Background technique [0002] The existing packaging materials with oxygen barrier performance mainly include aluminum foil. Although aluminum foil has good heat resistance, the strength and flexural performance of aluminum foil itself are not good, and because aluminum foil is opaque, it is difficult to meet the demand in terms of packaging aesthetics. [0003] Since the existing packaging materials often require good mechanical strength and the internal products can be seen through the packaging, the opacity and reflective properties of aluminum foil limit the application of aluminum foil in many packaging fields. It is not environmentally friendly and difficult to recycle, so people are constantly researching its alternatives. [0004] Polycarbonate is a class of high molecular polymers containing carbonate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F291/08C08F283/06C08F220/28C08K13/02C08K5/103C08K3/36C08K5/053C08K5/07
Inventor 张太元
Owner CHONGQING RUANS PLASTIC IND
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