Analysis: High Barrier Evoh Pesticide Raw Materials Of Plastic Bottles - High Barrier Plastic

Barrier Plastic bottles HC plastic mesh Ethylene / vinyl alcohol resin (EVOH)

is in units of ethylene and vinyl alcohol copolymer formed from the Japanese-invented, highly functional and thermal plasticity. Rely on molecular chain and the hydroxyl groups of intramolecular hydrogen molecules forming a powerful combination, so that EVOH exhibit excellent gas barrier property. With the co-extrusion technology, EVOH food packaging in order to center field for the application has achieved remarkable growth, now has become synonymous with gas barrier materials. In addition, it also protect Hong resistance, oil resistance, solvent resistance, non-charged nature of the printing characteristics, transparency, gloss, high rigidity, environmental adaptability and scalability of biological fitness, etc., in many places outside the field of food packaging play was also a variety of roles. Global annual demand now more than 90,000 tons, and annual growth of nearly 10%.

Barrier products for thermoforming Representation EVOH barrier containers, for example, Japan has been widely used in jelly cups, butter Thomas Cup, rice tray, etc., is the extrusion of thick multi-layer sheet as in the heating Mold Lira deep thermoforming (secondary processing) made. Japan Synthetic Chemical Industry Co., Ltd. developed the first hot forming is easy to model the products of high ethylene content, but with the market for high barrier of demand growth, barrier properties and thermal forming of all outstanding special type material with a thermal forming have been developed and used. As more and more alternatives to metal cans and containers to achieve long-term preservation purposes the use of high barrier that needs to be more intense. Japan Synthetic Chemical Industry Co., Ltd.

according to market demand, developed Soarnol barrier thermoforming products for BX6804B. It is now thermoforming products for the highest gas barrier products. In jelly cups and trays and other containers of rice are widely used.

Back with auxiliary fuel layer Plastic packaging materials The lightweight, abandoned Plastic containers The separation and recovery and recycling of packaging materials trends. EVOH has excellent gas barrier as sexual, and other gas barrier resin can do compared to thinner, lighter packaging materials therefore can contribute.

In addition, the use of EVOH packaging materials are multi-layer structure made of single material can not be as simple as recycling containers, which need their recycling. Jelly cups and trays of raw materials such as sheet molding or blowing in deep drawing, it will generate extra residual waste material or flash, etc.. These wastes to the environment if they are abandoned, Economy Sex is not good, so manufacturers in multi-storey container structure set back recycling waste material layer. However, this back in the multi-material layer is made of inner and outer container used in polyolefin resin and EVOH barrier layer of non-compatibility of a mixture composed of components, which arise because of the appearance of adverse flow deterioration due to EVOH crystals of exclusion point and decompose phenomenon. In addition, other ingredients added to the pigment containing titanium dioxide when, EVOH and pigment will be very easy aggregation. To solve these problems, the market has returned material layer additives. Those additives with the waste material in the back layer after molding made, to some extent alleviate the above problems, but did not completely solve the problem, and sometimes to return material layer yellow or red.

by: gaga

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