Month: November 2012

Man Products

Posted on by JamesH

With this sped up growth of the production industries, the accumulation of lixes comes increasing, causing impacts to the environment, which had to the potential and the time of detention of the same ones for the nature. Being thus this research it has as objective to look possible causes of these problems, to argue and to analyze the disposal of the discarding of humid and solid residues generated by the population and to clarify doubts how much its contribution for the protection of the environment. The 2 RESIDUES OF MODERN SOCIETY 2,1 Man, Great Polluting agent. Pollution is an undesirable modification of the environment, in general provoked for the human being for the introduction of chemical products (the pollutants) that they can cause damages, directly or indirectly, to the proper humanity. (LINHARES, 2005, p.540).

The pollution is it of the water, of air, of the ground or the food the addition of materials in amount is considered as that cause an undesirable alteration and that the survival or the activities of the man and the too much existing organisms in the planet can threaten. When the human being does not obtain to explore of form adjusted the resources that the nature offers, the environment goes suffering with the rubbish from these products, thus causing the call pollution. One of the biggest aggressions to the environment is the produced solid residues in urban areas, popularly garbage calls. Industrialization was the main factor for the exaggerated contribution of residues, therefore the man felt the necessity to produce new packings despertando new before inexistent necessities of consumption. Good part of the world lives today in a consumption society, where almost everything lasts little and is dismissable. The production of as many varieties of devices, foods, packings, automobiles, and among others is made to the cost of the consuming of the natural resources. Moreover, industrial products exist that if they decompose very slowly.

Dom Quixote

Posted on by JamesH

The only personage who is not represented by these drawings is the Rocinante horse, that for being made of water and wind is transparent. Another moment where we notice the presence of the playful one is in the songs that they exist in way to history, songs that speak of sea, wind, and that they portray the moment that if passes between the personages. The Cigana personage assumes the heroine role, therefore she has the responsibility to take care of of a mysterious glass that is lost and that the sadness of the world contains all, it the search for all the places, and for this account with the contribution of a knight, this knight makes a metalanguage with the history of ' ' Dom Quixote' ' , one is about a knight who rides, with its horse of water and wind, the Rocinante, on waters of the sea, and this horse has, when the Cigana the sum, sound and marches as well as an automobile. As well as it is representing in pages 13 and 14: ' ' Cigana: Ui, ui, it walks of march the reverse speed! Knight: He hooks the first one! Cigana: The first one? Knight: Equal the automobile! You hook the first one if you hook the march the reverse speed, it you walk you stop backwards! Cigana: But where it is that it is the change? Knight: I go to mount and to help you! I leave to go up in the horse, Armelite! (He goes up. The trot starts a dance with steps.) Cigana and Cavaleiro (if they put into motion stops backwards and sing): Upa, Upa, stop backwards, Horse of march the reverse speed. If I to only trot of this skill, do not go for where I to want! (They hook. Racket of engine, that the two make with the mouth.) ' '.

Primer Filler

Posted on by JamesH

Water-based primer and enamel – paint materials, synthetic polymers, form sufficiently stable solutions in water. Filler – the dispersion in the binder of pigments and fillers. Fillers are used to repair various defects (pores, cavities, grooves) on the painted surface. Lucky used as such and as semi-finished materials for manufacturing pigmented. Here are the schematic structure of varnishes, enamels, paints, primers and fillers. What is the difference between the enamel from the paint from the primer, and Enamel coating on the filler is prepared, typically based on polish and she has a nice spill and forms a smooth, glossy and hard surface.

The paint is prepared by drying oil more often, sometimes in water emulsions, and she has a bad spill, forms a mat, rather soft cover. The primer is different from the enamel and fillings, and view the content of pigment and filler. In the primer designed to protect the metal pigments are used to prevent the process corrosion. Typically, the pigment content of 50-80% by weight of film forming. In the enamel is administered up to 120% pigment by weight of film-forming to create a good hiding.

In seeking to increase filler 'body' of the material, so to fill the irregularities of the substrate, so the content of the mineral part of it is 200-300% of the mass prisoner cogenerators. Antioxidant – slows or stops the oxidation processes that lead to aging coatings. The mechanism of action based on the ability of antioxidants break off a chain reaction of oxidation. Catalysts – alter or stimulate a chemical reaction. Dispersers (dispersal) – thin grinding of a solid or liquid, resulting in the formation of dispersions: powders, suspensions, emulsions, aerosols. Stabilizers – are introduced into the emulsion to prevent fogging when applied emulsion layers on a substrate. Hardeners – cause hardening of the reactive oligomers. (Oligomers – members of homologous series, occupying a molecular weight region between monomers and macromolecular compounds. By oligomers are many synthetic resins – alkyd, phenol formaldehyde, epoxy).