Show Preview Xinfu Zhejiang Hangzhou Xinfu Pharmaceutical Co., Ltd. is, among other things, a global leading manufacturer of vitamin B5. In addition XINFU specializes in the field of biochemicals, fine chemicals and Eco-Materials. Biocosafe™ is a type of biodegradable macromolecular polymer synthesized from diacid and diols by a direct process of condensation polymerization catalyzed by a highly effective non-toxic catalyzer that is developed by XINFU. It is certified compostable as to EN13432 and ASTM D6400. The Biocosafe resin series includes Biocosafe 1803 (PBSA), Biocosafe 1903 (PBS) and Biocosafe 2003 (PBAT), which can satisfy the different processing requirements of injection moulding, extrusion, blown film, fibre, bristle, straw and tube. Xinfu also have a research team to develop resin modification and product applications. XINFU is seeking opportunities to cooperate with different partner in order to develop biodegradable plastic market. www.xinfupharm.com N3K03
Fukan Plastics*
WinGram
Shanghai Fukun New Material Science & Technology Co. Ltd., presents AddiFlex oxo-biodegradable plastic additive as a viable, practical and easy to use solution for the present plastic littering situation in China. It was developed in Europe and the USA over the last 15 years.
WinGram Industrial, a Hong Kong based company specialized in cellulose acetate (CA) material, started with traditional CA 15 years ago. WinGram is a major CA material supplier to most of the spectacle frame makers in China who produce European and US high quality branded frames. Two years ago they started developing biodegradable CA and successfully formulated their own 100% biodegradable polymer material which was recently certified to ISO14855.
The picture demonstrates a real life test indicating oxidative degradation of an HDPE polymer carrier bag within 6 weeks in outdoor weather conditions similar to those in China, i.e. general weather conditions between 18°C and max 40°C, sunlight and rain. The results have been backed by a parallel test in Germany under weather conditions between 5°C and max 28°C, sunlight and rain. The first stage of the degradation process leads to macromolecular chain breakdown due to the decomposition of peroxides which drives the auto-accelerating oxidation of the polymer, and it is this decomposition which is accelerated by the transition metal catalysis. Oxidation, technically known as degradation, as per ASTM D6954 The second stage, known as the biodegradation stage, is when the material from stage one is metabolized by microorganisms resulting in biomass, water and carbon dioxide. www.fukan-cn.com N3S51
After the biodegradable material launch not only do the spectacle frame makers now ask for the material to build up their own Eco line, but also toy manufacturers started to test the material. An important advantage of working with WinGram CA material is that there is no need to modify or alter existing tooling or injection machines. The material passed comprehensive testing, such as impact, drop and hardening tests. Three grades are available: S70 is a 100% biodegradable CA. It is specially formulated for spectacle frame production and it is highly transparent if needed. It is suitable for both injection moulding and sheet extrusion. S72 is a 100% compostable CA. It is slightly yellowish but it is good for semi-transparent injection moulding and sheet extrusion processes for toys or other plastic products. S73W: This grade is a hybrid of CA and traditional plastic, or formulated as 100% compostable upon-request. Ready for coloring is an injection moulding grade material for toys or household products.
The results exceeded the performance seen in controlled laboratory tests
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bioplastics MAGAZINE [02/12] Vol. 7
www.ecoplant.hk N3S39