BR102013019112A2 - COMPOSITION OF MATERIALS EXTRACTED FROM RECYCLED WASTE AND RESULTING MATERIAL - Google Patents

Abstract

SUMMARY COMPOSITION OF MATERIALS EXTRACTED FROM RECYCLED WASTE AND RESULTING MATERIAL The problem is to obtain synthetic materials to replace endangered wood and to recycle waste from the processing industry and urban waste and the claimed solution is to group together materials from different chemical structures, extracted from recycled waste from the manufacturing industry and urban waste, in a specific formulation, thermoprocessed in extruder, resulting in material with functional characteristics similar to those of wood; is characterized by grouping dirty plastics, that is, as found in urban or industrial waste collection points, to be reprocessed simultaneously; and explored the chemical and physical characteristics of each dirty plastic and researched the percentage by weight of each material extracted from the recycled waste comprising: 45% to 70% PE, HDPE and LDPE, 4% to 9% PP, 1% to 4% POLYESTER, 0.1% to 4% Cotton FABRIC, 0.1% to 4% COLA and RUBBER, 4% to 18% VEGETABLE FIBER & WOOD, 3% to 10% OS, ABS, HIPS, PET, PC, PU, EPS and BLISTER, 0.1% to 7% of SAND, LAND and ORGANIC WASTE. 1/1

Description

COMPOSITION OF MATERIALS EXTRACTED FROM RECYCLED WASTE AND RESULTING MATERIAL

This is a grouping of materials of different chemical structures, extracted from recycled waste from the manufacturing industry and urban waste collection, in a specific formulation, processed in extruder, resulting in material with functional characteristics similar to those of wood.

The hydrocarbon cracking process results in the conversion of natural gas or petroleum components into monomers such as ethylene, propylene, butene and styrene. The combination of different monomers produces plastic resins, here called "plastics", with different properties and characteristics.

To maintain the characteristics of each plastic after recycling, each type of plastic needs to be reprocessed separately. Because of their varied physical and chemical properties, different plastics, if reprocessed together, lose their original properties and the resulting product has its own characteristics independent of the characteristics of the grouped materials used as raw material in recycling. Plastic known as PET - polyethylene terephthalate and HDPE - high density polyethylene are examples of plastics that are normally reprocessed separately. This is economically possible due to the large amount of products made from these plastics. PET is used in the manufacture of packaging, bags, beverage bottles and others. HDPE is used for yogurt containers, detergents, margarines, garbage bags and more. Most recyclable plastics are distributed at different collection points and are in small quantities, increasing the cost of the cycle if reprocessed separately. The difficulty lies in grouping these plastics from different chemical structures extracted from the recycled waste from the manufacturing industry and from the urban waste collection, in a formulation with a specific percentage of each collected plastic, so that when simultaneously reprocessed in an extruder, it results in material with useful chemical, physical and functional characteristics and with industrial application. The difficulty of reprocessing is increased when it is desired to group dirty plastics, that is, as found at urban or industrial waste collection points; They are found with coatings of paints, fats, earth, sand, besides the presence of vegetable fibers and others. The main plastic and non-plastic materials found for recycling are:

• PE- Polyethylene. Thermoplastic resin obtained from polymerization of ethylene gas; with high molecular weight polymers are

used in the plastic industry in film form.

• HDPE- High Density Polyethylene

• LDPE- Low Density Polyethylene

• PP- Polypropylene. Thermoplastic resin obtained from propylene polymerization; are used for caulking,

fillers in the packaging, auto parts and adhesives industry.

• PS - Polystyrene

• ABS - Acrylonitrile Butadiene Styrene · HIPS -PolyestyrenodeaItimpact • PET - Polyethylene terephthalate

• PC - Polycarbonate

• POLIESTER- Saturated thermoplastic resin including PET and unsaturated resin obtained from the condensation reaction between acids and

glycols

• PU - Polyurethane. Polymers obtained from the reaction of organic isocyanate with oxy group-containing compounds; polyurethane foam is used for thermal insulation in cold rooms, wall fillers, furniture and in

building construction

• EPS - Expanded polystyrene BLISTER-Blister

• NYLON - These are polyamide thermoplastics found in automotive parts, electro-electronic equipment parts, and

packaging.

• Others - Perbunan, Polychloroprene, Polyisoprene and Plexiglas.

Patent document Pl 0408319-9, filed with INPI-BR on

04/03/2004, describes a method of recycling and reducing plastic or non-plastic material using an infrared source. Document P 0701132-6, filed with the INPI-BR on 30/05/2007, consists of the use of the waste transformation process through the use of chemical reagents that promotes the oxy-reduction reaction. Any extruder using direct or indirect heat source with temperature control has technical potential to process plastic and non-plastic material. The resulting material will depend more on the composition of the raw material than on the characteristics of the extruder. The "Composition of Materials Taken From Recycled Waste And Resulting Material", described in this report, is characterized by grouping dirty plastics, that is, as found at urban or industrial waste collection points, for simultaneous reprocessing. He explored the chemical and physical characteristics of each dirty plastic and researched the amount by weight of each to yield a product with characteristics sufficiently equal to the mechanical characteristics of the wood.

The resulting composition as a percentage of the total weight of each material extracted from the recycled waste claimed herein comprises:

HDPE (HDPE and LDPE) - 45% to 70%

PP - 4% to 9%

POLYESTER - 1% to 4%

CLOTH / FABRIC - 0.1% to 4%

Glue / Rubber - 0.1% to 4%

VEGETABLE FIBER / WOOD - 4% to 18%

PS / ABS / HIPS / PET / PC / PU / E PS / BL BL - 3% to 10%

SAND / GROUND / ORGANIC WASTE - 0.1% to 7%

The recyclable material comprised in the formulation is initially ground, then mixed and taken to the extruder; then laminated and cooled to cut the final product. There are no additives in the formulation, no decomposition accelerating agents, no crosslinking agents that increase the formation of valence bridges between the compounds. Also, no cure retardant is used which slows down the process to cure some polymer. The material resulting from reprocessing is different from each of the materials used as raw material. The resulting material exhibits different physical and mechanical properties including particle size, density, hardness, flexibility, yield and compactability. These properties confer sufficiently differentiated characteristics that solve a problem of the state of the art; replace wood. Keeping the claimed formulation, the resulting product has physical and chemical stability for its industrial use.

Claims (3)

1. COMPOSITION OF MATERIALS EXTRACTED FROM RECYCLED WASTE AND RESULTANT MATERIAL formed by the grouping of materials of different chemical structures extracted from the recycled waste of the manufacturing industry and urban waste collection, characterized in that it contains 45% to 70% PE, HDPE and LDPE, 4% to 9% PP, 1% to 4% POLYESTER, 0.1% to 4% Cotton FABRIC, 0.1% to 4% COLA and RUBBER, 4% to 18% VEGETABLE AND WOOD FIBER, 3% to 10% OS, ABS, HIPS, PET, PC, PU, EPS and BLISTER, 0.1% to 7% of SAND, EARTH and ORGANIC DEJECTS. RESULTANT MATERIAL obtained by thermofusion in extruder, characterized in that it is prepared by the composition of materials as described in claim 1 (one). RESULTANT MATERIAL according to claim 2 (2), characterized in that it is useful for at least one of a building material, as a casket in the concrete; building material such as baseboards, door and window coverings; a material from the furniture, paneling and decorative objects industry.