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PVC AND ENVIRONMENT
The PVC is an extremely versatile material with which many products that we used daily are elaborated, some of them are know for everybody, even by being in direct contact with foods, for example: pipes for which water is transported, bottles for water and vegetable oils that use daily in our kitchens, toys that use millions of children, hoses used so much for medical use like for the transport of water, films used in order to preserve the properties of the foods, etc.


PVC Articles

Unfortunately, is diffused the idea that the PVC is a toxic and harmful material for atmosphere, mainly for a bad perception of the reality or for the suspicions of toxicity of some materials that until the moment have not been demonstrated it in the corresponding studies, but that for political reasons in certain countries don't permit their extended use. The foundations of these attacks to the PVC are: 

1. The suspicion that exists for some time that the MVC, monomer well-known like Vinyl Chloride and matter with which the PVC is manufactured, it could be a cancerigen material and that have placed it in the list of substances subject to control and study for FDA (Administration of Drugs and Foods from USA); but it is necessary to clarify that the PVC, product result of their polymerization, has properties completely different and is totally innocuous; also, thanks to the modern techniques of separation, the traces of monomer still present in it, are minimum and its concentration in no way is harmful for the health, as have been checked in diverse studies carried out in the decades in which it have been had in observation. 

2. On the other hand, the PVC, upon containing Chlorine in its molecular structure, is accused of generating acid rain when is burned in incinerators lacking of a control of emissions that neutralize it in order to form a co-product not noxious; but in its functional form and in normal conditions of operation is a material perfectly stable and innocuous, besides being a way of maintaining the Chlorine generated in other industrial processes in the form of an useful product and that of not being so, it could not be used and it would generate the contamination of which the PVC is accused.  Also, the PVC is 100% recyclable and it is re-utilized in the production of a multitude of products of daily use when are had implemented programs of classification and recycling of waste that maintain an identification and suitable cleaning of the materials.

EPM and Environment

3. Lastly, the PVC base resin with which the film is elaborated has a series of additives (plasticizers, stabilizers, lubricants, pigments, etc.) that impart the properties that characterize it and that with the time could come to emigrate to the surface of the same and go over to the product with which they are in contact; this situation also exists in all the others plastics materials with additives, but if a material is formulated with components carefully chosen using food grade materials and proven like substances that they don't constitute a risk for the health, it is adapted for use in food contact, although it could provide something of odor or flavor to the product that it pack.

The risk of using PVC is similar to managing paper or glass, but if are had the controls and the care adapted in their handling, use and waste, the damage to the atmosphere is minimum. In what it concerns to the packers, is advisable maintain an appropriate handling of the material mainly when high temperatures are managed because these degrades to the polymer. In the packing process the higher carelessness occurs in the sealed with heat; in order to maintain low the emissions of characteristic smoke of the PVC degradation are primordial the cleaning of the sealing resistance’s and of preference a strict control of the temperature that permits the seal to the minor possible temperature. Also it should have the working place sufficiently ventilated, because although these emissions have not proven have adverse effects in the health they are annoying for the operator. 

Have the security that the product that you use is totally secure and upon consuming it the same as other products manufactured with PVC, you use one of the thermoplastic material of more peak in our country and with wide horizons to world level.

17/09/2005

 


BIODEGRADABLE PVC

PVC as well as other plastics was developed to resist what makes it useful in many applications but it makes disposal problematic. However, the polymer is 100% recyclable and can be reused in the manufacture of new products. Is identified with the number 3 in the catalog of recycled plastics to facilitate the recovery of waste products made from this material. This option of reducing and recycling is always preferable to incinerating it or sending it to landfills because it saves valuable raw materials.

Like most thermoplastics, until recently there was no method to do it biodegradable, but was lately discovered a new way of biodegradation; oxodegradación was not applicable to PVC and the use of biopolymers developed from starch . Anaerobic hydrocarbon biodegradation in landfills occurs when adding additives to specially developed formulations and modifications in the manufacturing method that catalyze this process under anaerobic conditions by the enzymes of the cyanobacteria present in the landfill break hydrocarbon chains producing biogas (methane) and biomass. Laboratory tests show that under the conditions of humidity, temperature and oxygen deprivation existing in sanitary landfill, the polymer decomposes within a few months even making the chlorine in a soluble form of chlorine that acts as a fertilizer. The way this happens is still being investigated but it is possible to obtain a decomposition without toxic by-products.

This makes the PVC in a biodegradable product with several advantages. The use of biodegradable starch-based require more energy to manufacture and use agricultural resources for food required. Also they do not have the best physical properties of resistance that has the PVC. The oxodegradación breaks down long chains of polymers in shorter chains that destroy the product but not really a biodegradation and plastic stays in microscopic form.

On the other hand, by not allowing the aerobically degradable product made with specially formulated PVC does not have an expiration time and allows you normally recycled without losing its properties and decay only when the conditions associated with a landfill.

When considering these factors the use of PVC can be considered far more environmentally friendly.

Empaques Plasticos de Mexico, SA de CV, interested in preserving the environment makes available to its customers this new discovery for those concerned that the packaging is not recycled and end up in municipal landfills decay times excessive.

In addition to this development Empaques Plasticos de Mexico, SA de CV has a plan for recovery of waste PVC shrink film from his customers to put in the hands of recyclers interested in making it into new products.

21/03/2011

 
Last review of this page: 30/Jul/2013

buzon@empaquesplasticos.com.mx
 

 

PVC and Environment.