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Biodegradable polyester composition

一种生物降解聚酯、生物降解的技术，应用在可生物降解聚酯组合物领域，能够解决粘附强度不够、印刷过度油墨、薄膜印刷性能差等问题，达到改善印刷不良、改善润滑程度、优良印刷性能的效果

Inactive Publication Date: 2016-05-18
KINGFA SCI & TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the printing process of biodegradable polyester films, there are often cases of poor printing (the ink is not completely adhered to the film, or the adhesion strength is not enough) or excessive printing (too much ink adheres, and the logo is unclear). poor printing performance

Method used

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  • Biodegradable polyester composition
  • Biodegradable polyester composition
  • Biodegradable polyester composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-16 and comparative example 1-4

[0042] According to the formula shown in Table 1, PBAT, PLA, ADR4370, organic fillers, inorganic fillers, plasticizers, surfactants, waxes and other additives, tetrahydrofuran and cyclopentanone were mixed and put into the single-screw extruder. Extrude and granulate at 140°C-240°C to obtain the composition. The performance test data are shown in Table 1.

[0043] Performance evaluation method:

[0044] (1) Evaluation method for printing performance of biodegradable polyester film:

[0045] Taking biodegradable polyester films with different printing effects, according to the clarity of the printed labels and the adhesion of ink on the surface of the film, the different printing effects are rated according to the following method:

[0046] Level 1: The label is clear and there is no excessive ink adhesion film;

[0047]Level 2: The label is clear, with a small amount of excess ink adhering to the film;

[0048] Level 3: The label is basically clear, with more ink adhered t...

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PUM

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Abstract

The invention discloses a biodegradable polyester composition. On the basis of the total weight of the biodegradable polyester composition, the weight content of tetrahydrofuran is 3-200 ppm. On the basis of the total weight of the biodegradable polyester composition, the weight content of cyclopentanone is 0.5-85 ppm. By adding tetrahydrofuran and cyclopentanone in the composition, the content of tetrahydrofuran and cyclopentanone in the composition is controlled to be within a certain range, the bad printing phenomenon of the biodegradable polyester composition in the printing process can be greatly improved, the phenomenon that printing ink disengages from a film material is avoided, the phenomenon that because printing ink is too much, the printing ink adheres to the film material is also avoided, and therefore a thin film has good printing performance. The lubrication degree of the film can be improved in the blow molding process of the biodegradable polyester composition, the film blowing speed is 176 Kg / h, the film thickness difference is smaller than 0.2 micron, the film thickness relative deviation is smaller than 1%, and stability of film bubbles and film blowing continuity are guaranteed.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and in particular relates to a biodegradable polyester composition with excellent printing performance and film bubble stability. Background technique [0002] Biodegradable polyester is a kind of polymer material made of biological resources. Compared with petroleum-based polymers that use petrochemical resources as raw materials, biodegradable polyesters can degrade in biological or biochemical processes or in biological environments, and are currently very active in the research of biodegradable plastics and have the best market applications. one of the materials. [0003] Biodegradable polyester film is one of the important application fields of biodegradable polyester at present, mainly including food bags, garbage bags, shopping bags and plastic film. In the process of blow molding biodegradable polyester film, it often occurs that the film is not lubricated enough to stick to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L3/02C08L25/14C08K5/1535C08K5/07C08K13/02C08K3/34C08K3/26
CPCC08J5/18C08K5/07C08K5/1535C08L67/02C08L2205/02C08L2205/03C08L2205/035C08L2203/16C08L2201/06C08J2467/04C08J2367/02C08L67/04C08L25/14C08K13/02C08K3/34C08K2003/265C08L3/02C08K3/26C08K3/013C08J2403/02C08J2425/14
Inventor 卢昌利袁志敏蔡彤旻黄险波曾祥斌焦健苑仁旭钟宇科熊凯杨晖麦开锦董学腾
Owner KINGFA SCI & TECH CO LTD
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