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Biodegradable polyester composition and application thereof

A technology of biodegradable polyester and polyester degradation, applied in the field of biodegradable polyester compositions, can solve the problems affecting the final degradation performance of products, excessive heavy metals, unsatisfactory pigment dispersion effect, etc.

Active Publication Date: 2022-01-21
DONGGUAN JINFULIANG PLASTIC & RUBBER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, failure to select pigment additives during the coloring process will lead to excessive heavy metals after composting or landfilling; in addition, existing patents such as CN1368516, CN101392078, CN101319068 use non-degradable materials such as polyethylene or ethylene vinyl acetate copolymer as carriers, This will inevitably affect the final degradation performance of the product
Although Chinese patents CN101475695 and CN102040814 use biodegradable plastics as carriers, non-degradable additives such as polyethylene wax, oxidized polyethylene wax or EBS have also been added in these patents, and the prepared color masterbatch has a significant impact on crop yield when degraded. Influence
Although the carrier resin selected in Chinese patent CN102391626 is a bio-based fully degradable polymer, no processing aids are added in the patent, which leads to unsatisfactory pigment dispersion effect and high processing viscosity of the color masterbatch during the production process. Problems such as color points are easy to appear when using

Method used

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  • Biodegradable polyester composition and application thereof
  • Biodegradable polyester composition and application thereof
  • Biodegradable polyester composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The composition of the biodegradable polyester composition (R1 white) is shown in the table below:

[0053] Table 1

[0054] raw material name Weight (unit: gram) Rutile titanium dioxide (LR-108, oil absorption value 13-17g / 100g) 25 Polylactic acid (4043D) 34 Aliphatic / Aromatic Hybrid Polyester Resin (THJS-6802) 22 Glycidyl neononanoate 1 Epoxy resin (TDE-85) 1.6 talcum powder 11 Oleamide 3.8 Ethylene bis stearamide 1.6

Embodiment 2

[0056] The composition of the biodegradable polyester composition (R2 black) is shown in the table below:

[0057] Table 2

[0058]

[0059]

Embodiment 3

[0061] The composition of the biodegradable polyester composition (R3 green) is shown in the table below:

[0062] table 3

[0063] raw material name Weight (unit: gram) Rutile titanium dioxide (LR-108, oil absorption value 13-17g / 100g) 15 Pigment yellow (2927, oil absorption value 34g / 100g) 9 Phthalocyanine blue B (oil absorption value 45g / 100g) 1 Polylactic acid (4043D) 34 Aliphatic / Aromatic Hybrid Polyester Resin (THJS-8801) 22 Glycidyl pivalate 1 Epoxy resin (TDE-85) 1.6 talcum powder 11 Oleamide 3.8 Ethylene bis stearamide 1.6

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Abstract

The invention relates to the field of biodegradable polyester, in particular to a biodegradable polyester composition and an application thereof. The biodegradable polyester composition comprises a pigment, a degradable polyester resin, a functional additive, a filler and an auxiliary agent, wherein the degradable polyester resin comprises (a) polylactic acid and (b) aliphatic / aromatic mixed polyester resin, and based on the total weight of the composition, the content of the degradable polyester resin in the composition is 50-90%.

Description

technical field [0001] The present invention relates to the field of biodegradable polyester, in particular to a biodegradable polyester composition and its application. Background technique [0002] Biodegradable polyester is synthesized by petroleum refining. Compared with traditional petroleum-based materials, biodegradable polyester can be decomposed into carbon dioxide and water in the case of composting and natural landfill, and will not cause white pollution. Biodegradable polyester coloring masterbatch provides different colors for biodegradable polyester, and will not bring heavy metals and other secondary pollution to the soil after degradation. Composting biodegradable polyester fertilizers and landfilling biodegradable polyester can be used directly without further treatment. [0003] Biodegradable polyester is widely used in express bags, shopping bags, kitchen waste bags, food packaging films, agricultural mulch films and other fields. However, failure to sel...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/00C08L63/00C08K13/02C08K3/22C08K3/34C08K5/20C08K3/04C08J3/22
CPCC08L67/04C08J3/226C08L2201/06C08L2205/02C08L2205/03C08K2201/014C08K2003/2241C08J2467/04C08J2467/00C08J2463/00C08K13/02C08K3/34C08K5/20C08L67/00C08L63/00C08K3/22C08K3/04Y02W90/10
Inventor 黄成明陈伟聪
Owner DONGGUAN JINFULIANG PLASTIC & RUBBER TECH CO LTD
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