Polyester degradable plastic for landscape flowerpot production and preparation method thereof

By combining modified polyhydroxy fatty acid esters and rare earth strontium aluminate-coated cerium oxide core-shell powder, the problems of low-temperature brittleness, weather resistance and degradation rate of landscape flower pot materials are solved, the low-temperature toughness, UV resistance and degradation control of flower pots are improved, and the requirements for high-end landscape flower pots are met.

CN120518990BActive Publication Date: 2026-01-27浙江元玺塑业有限公司
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Patent Information

Application Number
CN202510867709.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-26
Publication Date
2026-01-27
Estimated Expiration
2045-06-26

AI Technical Summary

Technical Problem

Existing biodegradable polyester plastics have problems such as low-temperature brittleness, poor weather resistance, insufficient rigidity, and uncontrollable degradation rate in landscape flower pot applications, resulting in flower pots that are easily damaged, yellowed, and have a short service life.

Method used

By using modified polyhydroxy fatty acid esters and rare earth strontium aluminate to coat cerium oxide core-shell powder, combined with PLA and PBS materials, a biodegradable polyester plastic for landscape flower pot production was prepared by improving interfacial adhesion, enhancing UV resistance, and controlling degradation rate.

Benefits of technology

It significantly improves low-temperature toughness and weather resistance, maintains rigidity, achieves a controllable degradation rate, and meets the needs of high-end landscape flower pots.

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Abstract

The application discloses a kind of landscape flowerpot production polyester degradable plastics and preparation method thereof, belong to degradable plastics production technical field, first, landscape flowerpot production polyester degradable plastics includes following mass parts raw materials: polylactic acid 50~70 parts, polybutylene succinate 20~35 parts, modified polyhydroxy fatty acid ester 10~15 parts, rare earth strontium aluminate coated cerium oxide core-shell powder 0.8~1.2 parts, antioxidant 0.3~0.8 parts, lubricant 0.5~1.0 parts.The application is improved by modification PHA (promote interface compatibilization and low temperature toughness) and core-shell powder (enhance anti-ultraviolet and degradation control), combined with PLA / PBS basic system, comprehensively solve the core defects of landscape flowerpot material. Example data confirms that its low-temperature impact strength is increased by more than 50%, yellowing rate is reduced by more than 80%, rigidity remains stable, degradation rate is controllable, has outstanding environmental protection and market value.
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