• Clean Technology
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• v.21 no.1
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• pp.1-11
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• 2015

To address recent environmental pollution, bio plastics such as biodegradable, oxo-biodegradable, and bio-based plastics have attracted much attention in a variety of industrial fields. The critical disadvantages of the weak mechanical strength and expensive product cost were gradually solved by extensive researches. As an alternative for petroleum-based plastics, the bio plastics have been applied to various items. To popularize the bio plastics, certification marks and technical standardization have been developed in the world. This article provide an over view on the recent trend on the commercialization and national certification marks.

• The monthly packaging world
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• s.251
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• pp.51-63
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• 2014

바이오 플라스틱, 에코패키징, 인체 무해성 등과 관련하여 국내외적으로 다양한 규격 및 시험방법이 있다. 바이오 플라스틱(Bio plastics)은 최근 생분해 플라스틱(Biodegradable plastics), 산화생분해 플라스틱(Oxo biodegradable plastics), 바이오 베이스 플라스틱(Bio based plastics)의 3가지로 나뉘어지고 있는 추세이다. 생분해 플라스틱 규격기준은 국제규격인 ISO 14855를 기준으로 국가별로 자국내 규격기준이 제정되어 있고, 이에 따른 인증마크를 시행하고 있다. 최근에 아랍에미레이트(UAE)에서 국제 환경규제를 전면 시행하면서 부각되고 있는 산화생분해 플라스틱은 미국의 ASTM D 6954:2004, ISO 14855 등의 기준을 토대로 제정한 UAE S 5009:2009에 의해 시행되고 있다. 또한 산업화가 급속하게 추진되고 있는 바이오 베이스 플라스틱 관련한 규격 기준은 미국 ASTM D 6866을 기준으로 시행되고 있고, 일부 국가는 자국내 규격기준을 제정하여 인증라벨을 부여하고 있다. 현재 바이오 베이스 플라스틱 인증라벨은 2002년 미국을 시작으로 2006년 일본, 2009년 벨기에, 2010년 독일, 2011년 한국에서 시행되고 있다. 그 외에도 GR마크, 녹색 인증, 단체 규격 인증, 업계 자체 규격 기준 등이 다양하게 시행되고 있다.

• Clean Technology
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• v.20 no.3
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• pp.205-211
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• 2014

Biomass-based plastics containing the biomass content higher than 25 wt% have been considered as environment-friendly materials due to their effects on the reduction in the $CO_2$ emission and petroleum consumption as well as biodegradability after use. This article described the effect of the additions of oxo-biodegradable additive, 4 kinds of plant biomass, unsaturated fatty acid, citric acid in the properties of polyethylene films. Bio films were prepared using a variety of biomasses and tested for feasibility as a food packaging film. Mechanical properties such as tensile strength and percent elongation at break were evaluated. Husk biomasses from such as corn, soybean, rice, and wheat were pulverized using air classifying mill (ACM) and four different types of packaging films with thickness of $50{\mu}m$ were prepared using the pulverized biomass and low density polyethylene/linear low density polyethylene. The packaging film with wheat husk biomass was found to have greater mechanical properties of elongation and tensile strength than the other samples. Biodegradability of bio film was measured to be 51.5% compared to cellulose.

• Clean Technology
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• v.23 no.2
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• pp.133-139
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• 2017

Bio-based plastics containing the biomass content higher than 25 wt% have been considered as environment-friendly materials due to their effects on the reduction in the $CO_2$ emission and petroleum consumption as well as biodegradability after use. In this study, poly vinyl chloride, plant-derived plasticizers, by adding a biodegradable catalyst was observed a change in the biodegradability and physical properties. To produce the oxidative decomposition transparent bio film, which is broken down in the initial percent elongation and physical properties such as tensile strength, it was to test the safety of the product as a food packaging material. Poly vinyl chloride, primary plasticizer, secondary plasticizer, anti fogging agent, the combined stabilizer were mixed in a high speed mixer, then extruded using an extrusion molding machine, after cooling, winding, to produce a oxidative decomposition transparent bio film and the control film, with a thickness of $12{\mu}m$ through winder role. Mechanical properties tensile strength, elongation, and the maximum load elongation and biodegradation test. Transparent bio film produced by biodegradation catalyst is compared with the control film. Tensile strength and elongation of films were found to be no significant difference. Further, as a result of the biodegradation test for 45 days based on the ASTM D6954-04 method, biodegrability of film is 61.4%.

• The monthly packaging world
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• s.276
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• pp.60-71
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• 2016

• The monthly packaging world
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• s.251
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• pp.42-44
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• 2014

• Clean Technology
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• v.21 no.3
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• pp.141-152
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• 2015

As environmental issues are emerging, bio-plastic suppliers in leading countries have been foreseeing the strong needs for environment-friendly materials such as eco-packing materials due to increased attention and regulation on recycle. To catch up with the demand, various types of bio-plastics based on natural feedstocks were developed and released on a market. These bio-plastic products drew the great attention even in domestic industries. At present, international oil price fluctuation and heavy charge on waste raise the unit cost of production and disposal expense of conventional plastic materials. These conditions make bio-plastic an alternative, because it is not restrained by oil prices and problem in the disposal. It is also expected that bio-plastic will be applied to various types of products including containers, industrial supplies, disposables, and medical supplies. However, the bio-plastic is still in its infancy, thus more research and understanding should be followed to put it to application. Bio-plastic is considered as environment-friendly material with high potential which has the advantages of production and disposal.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.23 no.3
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• pp.133-141
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• 2017

This article described the development of transparent antimicrobial oxo-biodegradable (AOB) film with the function of enhanced freshness of food by employing oxo-biodegradable masterbatch (MB) and antimicrobial MB together with organic metal salt, organic acid, or unsaturated fatty acid. Antibacterial test of the AOB film with the different contents of the antimicrobial MB resulted in the significant freshness extension of plum. Tensile strength and elongation rate of the AOB films before UV treatment were similar to those of polyethylene films used as control. The reduced mechanical properties of AOB film after UV treatment (340 nm) suggested that the AOB film could be degraded by oxo biodegradation. The developed AOB films can effectively prevent decomposition of food by providing antibacterial function and preserving freshness.