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Renewable resin compositions and articles made therefrom

A technology of recycled resin and composition, which is applied in bio-packaging, sustainable manufacturing/processing, sustainable packaging industry, etc. It can solve the problems of lack of circulation stability, easy tearing of film, high price, etc., and achieve excellent reproducibility , high transparency and low emissions

Pending Publication Date: 2022-06-07
绿鲸环球有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As biodegradable polymers, expensive materials such as polybutylene adipate-co-terephthalate (polybutylene adipate-co-terephthalate; PBAT), poly(hydroxyalkanoates) (poly(hydroxyalkanoates) ; PHA) dominates, especially, the PBAT series, due to the lack of circulation stability, the price is expensive, therefore, there are functional and economical problems commercially
In addition, in order to ensure price competitiveness, the cheaper polylactic acid (LA) series can be used as an alternative. However, when it is used as a molded product such as a film, the film is easy to tear due to the inherent brittleness of polylactic acid. Restricted in breaking and other mechanical properties

Method used

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Examples

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Embodiment approach

[0030] Next, the present invention will be described in detail. At the time of description, the terms or words used in this specification and the claims should not be construed as limited to the usual or dictionary meanings, and the inventors can appropriately define the terms in order to explain their invention in the best way. The principle of the concept of the present invention should be interpreted as the meaning and concept conforming to the technical idea of ​​the present invention.

[0031] Therefore, the embodiment and the illustrated structure described in this specification are only the best embodiment of the present invention, and do not represent all the technical ideas of the present invention. Therefore, it should be understood that there may be alternatives to these at the time of application of the present invention. Various equivalents and modifications of .

[0032] In the past, "biodegradable resin", which was proposed to solve the problem of general plast...

Embodiment 1

[0077] 40 parts by weight of polybutylene succinate (PTT MCC Biochem Co., Ltd) and 20 parts by weight of polybutylene adipate-co-terephthalate (BASF, trade name Ecoflex ) into the mixer to prepare the pre-resin mix.

[0078] Then, the pre-resin mixture was added to the No. 1 main feeder of a twin-screw extruder (product of Changsung P&R, L / D: 48 / 1, diameter: 1.5 mm), and fed to No. 2 27.3 parts by weight of tapioca starch was added to the feeder, 7.7 parts by weight of glycerin as a plasticizer, and 5 parts by weight of a coupling agent (silane coupling agent: vinyltrimethoxysilane) were added to the side liquid feeder.

[0079] The resin composition material fed from the feeder was mixed and extruded through an extruder, and then dried in a drier after cooling in a water bath at 40°C.

[0080] The dried extruded product was cut into pellets of 2.4 to 2.5 mm by a Pelletizing Machine to prepare a granular renewable resin composition.

Embodiment 2

[0082] Granular renewable pellets were prepared in the same manner as in Example 1, except that after adding tapioca starch, an elastomer was further added as an impact modifier (3 parts by weight of polybutadiene-grafted ethylene-octene copolymer) resin composition.

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Abstract

The invention discloses a renewable resin composition and an article prepared therefrom. The renewable resin composition comprises 100 parts by weight of cassava starch, 100 to 200 parts by weight of poly (butylene succinate) or polylactic acid, 20 to 120 parts by weight of poly (butylene adipate-co-terephthalate), and 10 to 40 parts by weight of a plasticizer.

Description

technical field [0001] The present invention relates to a renewable resin composition and articles prepared therefrom, and more particularly, to a renewable resin composition that is biodegradable while having excellent renewability through reprocessing and articles prepared therefrom . Background technique [0002] Plastic, considered a "gift from God" 150 years later, is a bomb that threatens the planet after John Wesley Hyatt of the United States first developed a replacement for ivory billiard balls in 1868. It takes about 450 years to decompose a single plastic bottle, and the overall recycling rate is only 9%. [0003] At present, the pollution of such plastics to the global environment has surfaced. In order to solve the environmental pollution, it is necessary to develop new materials that can be processed or processed. [0004] As a conventional treatment method for reducing the problem of environmental pollution caused by waste plastics, for example, there is a m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L3/02C08K5/053
CPCC08L67/02C08L2201/06C08L3/02C08K5/053Y02A40/90Y02W90/10C08K5/54C08L51/003C08K5/0016Y02W30/62C08G63/183C08L2205/03C08G2390/00C08L2203/16
Inventor 仁智河图黄智英
Owner 绿鲸环球有限公司
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