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Photo-thermal cooperatively controllably degradable high-molecular composite mater batch and preparation method thereof

A technology of photothermal synergy and polymer materials, applied in the field of polymer materials, can solve problems such as the limitations of photocatalytic degradation technology, and achieve the effects of expanding the application range, less dosage, and regulating the degradation induction period

Inactive Publication Date: 2014-03-19
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in places where sunlight cannot be directly irradiated, such as a large amount of plastic waste in landfills, composting sites, and mulched soil, photocatalytic degradation technology is greatly limited.

Method used

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  • Photo-thermal cooperatively controllably degradable high-molecular composite mater batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 : Take 14 parts of photothermal catalyst according to the weight ratio, add 00.2 parts of titanate coupling agent, mix at high speed for 5 minutes in a high-speed mixer, then add 80 parts of polyethylene and 0.1 part of antioxidant 1010 in Mix on high speed in a high speed mixer for 15 minutes. The premixed material was placed in a twin-screw extruder, and modified by melt blending at 140° C. for 5 minutes. Extrude at a die temperature of 130°C and a screw speed of 20 rpm, cool under natural air, and pelletize through a pelletizer to obtain a photothermal synergistic controllable degradable polymer composite masterbatch.

Embodiment 2

[0018] Example 2 : Take 23 parts of photothermal catalyst according to the proportioning by weight, add 0.15 part of aluminate coupling agent, mix at high speed in high-speed mixer for 5 minutes, then add 85 parts of polystyrene and 0.1 part of antioxidant 1010 1. Mix 0.1 part of antioxidant MB in a high-speed mixer for 15 minutes. The premixed material was placed in a twin-screw extruder, and modified by melt blending at 160° C. for 4 minutes. Extrude at a die temperature of 150°C and a screw speed of 50 rpm, cool under natural air, and pelletize through a pelletizer to obtain a photothermal synergistic controllable degradable polymer composite masterbatch.

Embodiment 3

[0019] Example 3 : Get 3 to 4 parts of photothermographic catalyst by weight ratio, add 0.1 part of aluminate coupling agent, 0.1 part of silane coupling agent, mix at high speed in high-speed mixer for 5 minutes, then add 80 parts of polypropylene and 0.1 part of antioxidant CA was mixed in a high-speed mixer for 15 minutes at high speed. The premixed material was placed in a twin-screw extruder, and modified by melt blending at 180° C. for 3 minutes. Extrude at a die temperature of 160°C and a screw speed of 80 rpm, cool under natural air, and pelletize through a pelletizer to obtain a photothermal synergistic controllable degradable polymer composite masterbatch.

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PUM

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Abstract

The invention discloses a photo-thermal cooperatively controllably degradable high-molecular composite mater batch and a preparation method thereof. The master batch comprises the components in parts by weight: 0.5-4 parts of a photo-thermal sensitive catalyst, 80-95 parts of a high-molecular material, 0.1-2 parts of an anti-oxidant and 0.025-0.2 part of a coupling agent. The preparation method comprises: mixing metal oxides, grinding finely and performing high-temperature sintering to obtain the photo-thermal sensitive catalyst; performing surface activation on the photo-thermal sensitive catalyst by employing the coupling agent; and then beforehand mixing with the anti-oxidant and the high-molecular material, then performing extrusion by a double screw extruder, cooling and granulating to obtain the master batch. The master batch provided by the invention is capable of regulating the degradation induction period and expanding the application scope by adding the master batch into synthetic high molecules according to different ratios.

Description

technical field [0001] The invention relates to polymer materials, in particular to photothermal synergistically degradable polymer composite masterbatch and a preparation method thereof. Background technique [0002] Synthetic polymers such as plastics have been applied to various sectors of the national economy and various fields of people's lives, becoming an indispensable part of our lives. At the same time, the stability and durability of plastics have been continuously improved due to technological progress, which can resist many environmental impacts. A large amount of plastic waste has turned the former "white revolution" into an increasingly serious "white pollution". As we all know, synthetic polymer materials have certain environmental degradability, and they can be partially degraded under the combined action of light, heat, water, gas and microorganisms. According to the principle that the changes in the physical and chemical properties of any polymer material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L25/06C08L23/12C08L27/06C08K13/02C08K3/22C08K5/10C08K5/13B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/9258B29C2948/92704C08K3/22C08K9/04C08K9/06C08K2003/2248C08K2003/2262C08K2003/2289C08K2003/2293C08L23/12C08L27/06C08L2201/06C08L23/06C08L25/06C08K2003/2296C08K2003/2268B29C48/04B29C48/40B29C48/875B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 罗学刚李科林晓艳
Owner SOUTHWEAT UNIV OF SCI & TECH
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