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Preparation device of biodegradable polyester material fused with soil base material

A technology of biodegradable polyester and preparation device, applied in the field of preparation device of biodegradable polyester material, can solve the problem of difficult degradation of plastic films, and achieve the effect of improving quality and ensuring integrity

Pending Publication Date: 2021-08-17
吉林省中亿医药包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of plastic films in the prior art that are difficult to degrade, and propose a biodegradable polyester material that blends with the base soil matrix

Method used

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  • Preparation device of biodegradable polyester material fused with soil base material
  • Preparation device of biodegradable polyester material fused with soil base material
  • Preparation device of biodegradable polyester material fused with soil base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A biodegradable polyester material blended with the base soil matrix, the material is made of the following components by weight: 100 parts of biodegradable polyester, 30 parts of plasticizer, 25 parts of inorganic filler, 0.2 parts of antioxidant 60 parts of starch, 20 parts of lignin, 2 parts of lubricant;

[0045] The biodegradable polyester is one or a mixture of polylactic acid and poly(butylene terephthalate-CO-butylene adipate) ester; the plasticizer is diacetyl epoxy vegetable glycerin, inorganic filler At least one of calcium carbonate, kaolin, talc, titanium dioxide, mica, and montmorillonite; lignin is organic solvent lignin, sulfate lignin, alkali extraction lignin, enzymatic lignin or paper lignin Any one of them; the plasticizer is any one or a combination of ethylene glycol, glycerin, and sorbitol.

[0046] The present invention prevents starch from regenerating through the hydrogen bond and esterification reaction between lignin and starch, and the mast...

Embodiment 2

[0052] A biodegradable polyester material blended with the base soil matrix, the material is made of the following components by weight: 120 parts of biodegradable polyester, 5 parts of plasticizer, 200 parts of inorganic filler, 1 part of antioxidant 40 parts of starch, 30 parts of lignin, 0.8 parts of lubricant;

[0053] refer to figure 1 , a preparation process of a biodegradable polyester material blended with a base soil matrix, comprising the following steps;

[0054] Step 1: Dry the biodegradable polyester and inorganic filler, and then mix the biodegradable polyester, plasticizer, inorganic filler, antioxidant, starch, lignin and lubricant according to the corresponding parts by weight Mix at a high speed of 250 rpm for 10 minutes at room temperature;

[0055] Step 2: Add the homogeneously mixed raw materials into a twin-screw extruder for melt blending, and pelletize the plasticized biodegradable polyester material through the strands; then put the obtained plastici...

Embodiment 3

[0059] Embodiment 3 is an improvement to Embodiment 2. After extruding the plastic film in semi-molten state by the extruder, a tubular plastic film is formed. At this time, the tubular shape needs to be positioned and clamped. There is no such thing as the positioning and clamping of the prior art. Rapid cooling of the plastic film in the semi-molten state, so that the plastic film in the semi-molten state easily adheres to the clamping plate, and the integrity of the plastic film is destroyed; in addition, during the film cutting and winding process, the cutter When the tubular plastic film is cut into a film, it is rewound by the rewinding wheel. However, the independent driving device of the rewinding wheel and the film cutting process in the prior art cannot be synchronized, and it is easy to cause the rewinding wheel to rotate too fast or Too slow leads to problems with film breakage and buildup.

[0060] refer to Figure 2-11 A preparation device for a biodegradable po...

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Abstract

The invention relates to the technical field of polymer composite materials, in particular to a biodegradable polyester material fused with a soil base material, which is prepared from the following components in parts by weight: 100 to 120 parts of biodegradable polyester, 5 to 30 parts of plasticizer, 25 to 200 parts of inorganic filler, 0.2 to 1 part of antioxidant, 40 to 60 parts of starch, 20 to 30 parts of lignin and 0.8 to 2 parts of lubricant. According to the invention, starch retrogradation is prevented through hydrogen-bond interaction and esterification reaction between lignin and starch, the master batch prepared by compounding lignin and starch can promote the dispersibility of starch in degradable polyester, and finally, the compounded biodegradable polyester material has good processability and mechanical properties, and also has better degradation rate.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a preparation device for a biodegradable polyester material blended with a base soil matrix. Background technique [0002] In recent years, with the rapid development of social economy, the widespread use of polymer materials, especially plastic films, has brought great convenience to people's lives. Traditional plastic film materials mainly come from petroleum, such as polyethylene, polypropylene, etc. These plastic films also bring a series of environmental and energy problems during use. A large amount of plastic waste has seriously affected people's health and living environment. For example, some agricultural land has begun to reduce production due to the impact of waste plastic film, and the "white pollution" caused by waste plastics has caused serious harm to the environment. Therefore, with the dwindling of non-renewable petroleum resources and people...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L3/02C08L97/00B29C48/00B29C48/10B29C48/25B29C48/28B29C48/355B29C48/88B29C48/885
CPCC08L67/04C08L67/02B29C48/0022B29C48/10B29C48/25B29C48/28B29C48/355B29C48/885B29C48/913B29C2793/0063B29L2007/002C08L2205/035C08L2205/03C08L2201/06C08L3/02C08L97/005B29B7/48B29B7/10B29B7/002B29B7/7461B29B7/90B29B7/92B29B9/12B29B9/06B29B9/16
Inventor 马福浩马丽颖刘亚楠孙英杰马胜来马秀英卢金良庞在祥高智孙中波姜大伟
Owner 吉林省中亿医药包装有限公司
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