ES2343725B1 - A COMPOSITION OF RECYCLABLE MATERIAL BASED ON RECYCLED POLYOLEFINE AND HIGH CONTENT OF CALCIUM CARBONATE AND PROCEDURE FOR OBTAINING SUCH COMPOSITION. - Google Patents
A COMPOSITION OF RECYCLABLE MATERIAL BASED ON RECYCLED POLYOLEFINE AND HIGH CONTENT OF CALCIUM CARBONATE AND PROCEDURE FOR OBTAINING SUCH COMPOSITION. Download PDFInfo
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- ES2343725B1 ES2343725B1 ES201000369A ES201000369A ES2343725B1 ES 2343725 B1 ES2343725 B1 ES 2343725B1 ES 201000369 A ES201000369 A ES 201000369A ES 201000369 A ES201000369 A ES 201000369A ES 2343725 B1 ES2343725 B1 ES 2343725B1
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- polyolefin
- calcium carbonate
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 43
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 title claims abstract description 27
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims abstract description 3
- 238000001125 extrusion Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 239000000945 filler Substances 0.000 claims abstract 2
- 238000001914 filtration Methods 0.000 claims abstract 2
- 238000005297 material degradation process Methods 0.000 claims abstract 2
- 239000008188 pellet Substances 0.000 claims description 9
- -1 polyethylene Polymers 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 150000007965 phenolic acids Chemical class 0.000 claims 1
- 239000000047 product Substances 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000002105 nanoparticle Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 150000002910 rare earth metals Chemical group 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000012994 industrial processing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000004597 plastic additive Substances 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Una composición de material reciclable en base a poliolefina reciclada y alto contenido de carbonato cálcico y procedimiento de obtención de dicha composición.A recyclable material composition based on recycled polyolefin and high calcium carbonate content and procedure for obtaining said composition.
La composición comprende entre un 75% y 87% en peso de carbonato cálcico, entre un 11% y un 23% en peso de poliolefina reciclada y entre un 1% y 3% en peso de otras cargas teniendo el carbonato cálcico utilizado una D_{50} de 1 a 2.5 \mum y una D_{98} de 12 a 14 \mum y el área superficial está entre 3 y 6 g/m^{2}. El procedimiento de obtención comprende la dosificación de unas componentes de partida comprendiendo carbonato cálcico, poliolefina reciclada y entre un 1% y 3% en peso de otras cargas, mezclado de dichos componentes a temperatura ambiente en una mezcladora en continuo durante un periodo de tiempo que evite la degradación del material y proporcione una buena dispersión, fundido de toda la masa de polímero junto con el carbonato y dichas cargas, extrusión de la mezcla fundida y filtrado del plástico que todavía se encuentra en estado líquido.The composition comprises between 75% and 87% in weight of calcium carbonate, between 11% and 23% by weight of recycled polyolefin and between 1% and 3% by weight of other charges having the calcium carbonate used a D 50 of 1 to 2.5 \ mum and a D_ {98} of 12 to 14 \ mum and the surface area is between 3 and 6 g / m2. The procedure for obtaining comprises the dosage of starting components comprising carbonate calcium, recycled polyolefin and between 1% and 3% by weight of others charges, mixing said components at room temperature in a continuous mixer for a period of time that avoids material degradation and provide good dispersion, molten of the entire polymer mass together with the carbonate and said fillers, extrusion of the molten mixture and filtering of the plastic that still It is in a liquid state.
Description
Una composición de material reciclable en base a poliolefina reciclada y alto contenido de carbonato cálcico y procedimiento de obtención de dicha composición.A recyclable material composition based on recycled polyolefin and high calcium carbonate content and procedure for obtaining said composition.
La presente invención hace referencia a un nuevo material completamente ecológico y compuesto esencialmente de carbonato cálcico y poliolefinas provenientes del reciclado. Dicho nuevo material, contiene un porcentaje mayoritario de carbonato cálcico con lo que se convierte en un material de bajo coste y grandes ventajas por su naturaleza 100% reciclable.The present invention refers to a new completely ecological material and essentially composed of calcium carbonate and polyolefins from recycling. Saying new material, contains a majority percentage of carbonate calcium with what becomes a low cost material and Great advantages due to its 100% recyclable nature.
La invención también hace referencia a un procedimiento de obtención de la citada composición.The invention also refers to a procedure for obtaining said composition.
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Los materiales producidos con carbonato cálcico en alta concentración y poliolefinas presentan una baja elasticidad y son quebradizos, es por ello que existe una dificultad a la hora de fabricar productos que tienen más de un 75% de CaCO_{3}, puesto que sus aplicaciones se ven limitadas. Además, aunque existen materiales con alta concentración de CaCO_{3} y plásticos del tipo poliolefinas, estas son vírgenes a diferencia de lo reivindicado en la presente invención que detalla composiciones con poliolefinas recicladas, siendo totalmente independiente del petróleo.Materials produced with calcium carbonate in high concentration and polyolefins have a low elasticity and they are brittle, that is why there is a difficulty at the time of manufacturing products that have more than 75% of CaCO_ {3}, put Your applications are limited. In addition, although they exist materials with a high concentration of CaCO 3 and plastics of the type polyolefins, these are virgins unlike claimed in the present invention detailing compositions with polyolefins recycled, being totally independent of oil.
Aunque hay fabricantes como JM Polymers (antiguo MPR Polymers) que también desarrollan compuestos con poliolefinas recicladas y Carbonato Cálcico, su producto tan solo tiene entre un 35% y un 45% de carbonato con un área superficial inferior a 3,5 m^{2}/g, su nombre comercial es CACOREG 3565. Este es un producto altamente fluido, lo que no permite que su dosificación final en algunas aplicaciones pueda ser elevada (superior al 50%).Although there are manufacturers like JM Polymers (old MPR Polymers) that also develop compounds with polyolefins recycled and calcium carbonate, your product only has between a 35% and 45% carbonate with a surface area less than 3.5 m 2 / g, its trade name is CACOREG 3565. This is a product highly fluid, which does not allow its final dosage in Some applications may be high (over 50%).
La solicitud de patente europea EP-A-1842874 presenta un método de fabricación de plástico de un tamaño nano-partícula medioambientalmente compatible que consiste en añadir el elemento químico lantano (metal del grupo de las tierras raras) para producir un producto de bajo coste compatible con el medioambiente con ventajosas características en cuanto a biodegradabilidad, antibacteriano y no tóxico al quemarse.European patent application EP-A-1842874 presents a method of plastic manufacturing of a nano-particle size environmentally compatible consisting of adding the element lanthanum chemical (metal from the rare earth group) to produce a low cost product compatible with the environment with advantageous characteristics in terms of biodegradability, Antibacterial and non-toxic when burned.
El método descrito en dicha solicitud de patente incluye calentar el CaCO_{3} y añadir HST. A continuación, una cantidad predeterminada de disprosio (producto que contiene el Lantano, metal del grupo de las tierras raras, que se utiliza como agente acoplador) se añade varias veces en intervalos de tiempo predeterminados para posteriormente añadir nmZnO2 Ce[CH3(CH2)16CO2<->]3. Después de añadir el nmZnO2, Ce[CH3(CH2)16CO2<->]3, se añade la cera PE (NE-3) y aceite vegetal. Finalmente, el Polietileno virgen se añade para producir las nano-partículas de plástico. El producto resultante es biodegradable, antibacteriano y no tóxico al arder.The method described in said patent application includes heating the CaCO_3 and adding HST. Then a predetermined amount of dysprosium (product containing the Lanthanum, metal of the rare earth group, which is used as coupling agent) is added several times in time intervals default to later add nmZnO2 Ce [CH3 (CH2) 16CO2 <->] 3. After adding nmZnO2, Ce [CH3 (CH2) 16CO2 <->] 3, is add PE wax (NE-3) and vegetable oil. Finally, virgin polyethylene is added to produce the plastic nano-particles. The resulting product It is biodegradable, antibacterial and non-toxic when burning.
El producto final consta de entre un 72% a 89% de CaCO_{3}, 10% a 19% de poliolefina y de 9% a 1% de material auxiliar.The final product consists of between 72% and 89% of CaCO 3, 10% to 19% polyolefin and 9% to 1% material assistant.
La principal diferencia entre la solicitud EP-A-1842874 y la propuesta de la presente invención es que en dicho antecedente se usa poliolefina virgen mientras que la presente invención trata de poliolefinas recicladas. Otro aspecto a destacar es el hecho que la citada solicitud EP detalla un proceso de producción con un tamaño de partículas del plástico resultante del orden de las nanopartículas. Este tipo de producto presenta desventajas respecto al de esta invención, una de ellas es la dificultad de producción y los costes asociados, puesto que el trabajar con nanopartículas acarrea grandes problemas en cuanto a su manipulación y complejidad de producción. Son necesarias técnicas muy avanzadas que se están aplicando a escala de investigación, pero todavía no se contemplan en el ámbito del procesado industrial de plásticos industriales.The main difference between the request EP-A-1842874 and the proposal of the present invention is that in said background polyolefin is used virgin while the present invention is about polyolefins recycled Another aspect to highlight is the fact that the aforementioned EP request details a production process with a size of plastic particles resulting from the order of nanoparticles. This type of product has disadvantages compared to this invention, one of them is the difficulty of production and costs associated, since working with nanoparticles carries large problems regarding its handling and production complexity. Very advanced techniques are needed that are being applied to research scale, but not yet contemplated in the field of industrial processing of industrial plastics.
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El producto de la presente invención es un compuesto que contiene entre un 75 y un 85% de mineral ecológico procedente de la naturaleza. Dicho mineral está tratado superficialmente para poder hacerlo químicamente compatible con todo tipo de poliolefinas. El tratamiento confiere al producto propiedades mucho menos abrasivas, hidrofóbicas e inocuas respecto a cualquier tipo de aditivo plástico.The product of the present invention is a compound that contains between 75 and 85% organic mineral coming from nature. Said mineral is treated superficially to be able to do it chemically compatible with everything type of polyolefins. The treatment gives the product much less abrasive, hydrophobic and harmless properties than Any type of plastic additive.
El producto descrito es una materia prima de abundante disponibilidad, cuya dependencia en el petróleo es completamente nula lo que confiere al producto una mayor estabilidad en precios.The product described is a raw material of abundant availability, whose dependence on oil is completely null which gives the product greater stability in prices.
Se trata de un producto entre un 75% y un 85% menos contaminante que los plásticos originales. No emite gases contaminantes durante su producción y durante su incineración sólo emite gases contaminantes que provienen de la base polimérica.It is a product between 75% and 85% less polluting than the original plastics. It does not emit gases pollutants during its production and during its incineration only emits pollutant gases that come from the polymer base.
Es un compuesto plástico 100% reciclable, compatible con agentes degradables.It is a 100% recyclable plastic compound, Compatible with degradable agents.
El producto reivindicado es una composición de material reciclable en base a poliolefina reciclada y carbonato cálcico molido que comprende:The claimed product is a composition of recyclable material based on recycled polyolefin and carbonate ground calcium comprising:
- --
- entre un 75% y 87% en peso de carbonato cálcico con un tamaño medio de partícula (D_{50}) de 1 a 2.5 \mum y un corte superior (top cut) de diámetro de partículas (D_{98}) de 12 a 14 \mum y el área superficial entre 3 y 6 g/m^{2},between 75% and 87% by weight of calcium carbonate with an average particle size (D 50) of 1 to 2.5 µm and an upper cut ( top cut ) of particle diameter (D 98) of 12 at 14 µm and the surface area between 3 and 6 g / m2,
- --
- entre un 11% y un 23% en peso de poliolefina reciclada ybetween 11% and 23% by weight of recycled polyolefin and
- --
- entre un 1% y 3% en peso de otras cargas.between 1% and 3% by weight of other charges.
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Además, el producto reivindicado en la presente invención contiene poliolefinas recicladas con un índice de fluidez inferior a 5 MFI.In addition, the product claimed herein invention contains recycled polyolefins with a flow rate less than 5 MFI.
También cabe añadir que el carbonato cálcico está tratado con ácido esteárico entre 0.6 y 1.0% en peso.It should also be added that calcium carbonate It is treated with stearic acid between 0.6 and 1.0% by weight.
Las medidas del D_{50} y D_{98} se han realizado con un analizador modular del tamaño de partículas conocido como Mastersizer S, equipo que utiliza un sistema de medida basado en técnicas de difracción.The measurements of D_ {50} and D_ {98} have been carried out with a modular analyzer of the particle size known as Mastersizer S , equipment that uses a measurement system based on diffraction techniques.
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Sin que el presente ejemplo sea limitativo a una única posible elaboración del producto reivindicado en la presente invención, a continuación se presenta una forma industrial de realizar el material de alto contenido de carbonato cálcico y poliolefinas recicladas.Without the present example being limiting to one only possible preparation of the product claimed herein invention, an industrial form of make the high calcium carbonate material and recycled polyolefins.
A lo largo de la descripción y las reivindicaciones la palabra "comprende" y variaciones de la misma no pretenden excluir otras características técnicas, añadidos, componentes o pasos. Objetos adicionales, ventajas y características de la invención serán obvios a los expertos en la técnica si examinan la descripción, o bien pueden ser deducidos mediante la práctica de la invención. Los siguientes ejemplos y figuras se proporcionan a título de ilustración, y no pretenden limitar la presente invención. Además, la presente invención cubre todas las posibles combinaciones de realizaciones particulares y preferidas descritas aquí.Throughout the description and the claims the word "comprises" and variations of the It is not intended to exclude other technical features, added, components or steps. Additional objects, advantages and features of the invention will be obvious to those skilled in the art if they examine the description, or they can be deduced by practice of the invention. The following examples and figures are provided by way of illustration, and are not intended to limit the present invention In addition, the present invention covers all possible combinations of particular and preferred embodiments described here.
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Ejemplo de realizaciónExample of realization
El proceso comprende inicialmente 2 silos homogeneizadores donde se mantiene el material reciclado homogéneo de Poliolefinas.The process initially comprises 2 silos homogenizers where homogenous recycled material is maintained of polyolefins.
Por otro lado, otros cuatro silos, cada uno conteniendo:On the other hand, another four silos, each containing:
Carbonato cálcicoCalcium carbonate
Óxido de calcioCalcium oxide
Estearato de zinc (lubricante)Zinc Stearate (lubricant)
AntioxidanteAntioxidant
Cada uno de dichos componentes va a parar a un dosificador gravimétrico, en este caso se trata de un dosificador Brabender (loss in weight feeder) del tipo que dosifica ingredientes fluidos siempre y cuando no tengan características higroscópicas o sean pegajosos; entre los distintos tipos de ingredientes que se pueden utilizar en el dosificador están los pellets o bolitas, polvos, flocados, fibras o ingredientes cortados en trozos pequeños (fibras de vidrio, etc.).Each of these components goes to a gravimetric doser, in this case it is a doser Brabender (loss in weight feeder) of the type that doses ingredients fluids as long as they have no hygroscopic characteristics or be sticky; between the different types of ingredients that you can use the pellets or pellets in the dispenser, powders, flocks, fibers or ingredients cut into small pieces (glass fibers, etc.).
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Las proporciones de los componentes en el ejemplo aquí presentado son:The proportions of the components in the Example presented here are:
Poliolefinas 18% en peso18% by weight polyolefins
Carbonato cálcico 80% en peso80% calcium carbonate by weight
Estearato de zinc 0,4% en pesoZinc Stearate 0.4% by weight
Antioxidante (que es una mezcla de ácidos fenólicos y fosfitos) 0,1% en peso.Antioxidant (which is a mixture of acids phenolics and phosphites) 0.1% by weight.
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Una vez los materiales han sido dosificados en la proporción descrita se mezclan a temperatura ambiente mediante un husillo que los introduce premezclados (100% de la fórmula) a la mezcladora en continuo (Farrel CONTINUOUS MIXER 9UM), dicha mezcladora trabaja a una velocidad de 3 a 7 toneladas por hora. El material permanece en la mezcladora de 2 a 3 segundos, de tal forma que no se llegue a degradar el material. En el paso por la mezcladora es necesario conseguir una muy buena dispersión de todos los ingredientes y obtener así el material deseado.Once the materials have been dosed in the proportion described is mixed at room temperature by means of a spindle that introduces them premixed (100% of the formula) to the continuous mixer (Farrel CONTINUOUS MIXER 9UM), said Mixer works at a speed of 3 to 7 tons per hour. He material remains in the mixer for 2 to 3 seconds, so that the material is not degraded. In passing through the mixer is necessary to get a very good dispersion of all the ingredients and thus obtain the desired material.
Una vez la mezcladora en continuo ya ha premezdado el material y se ha fundido a una temperatura aproximada de 220-240ºC toda la masa de polímero junto con el carbonato y los aditivos pasan al proceso de extrusión.Once the continuous mixer has already premixed the material and has melted at an approximate temperature from 220-240 ° C the entire polymer mass together with the carbonate and additives go into the extrusion process.
La extrusora es una extrusora con cambiador de filtros por si hay aglomerados o infundidos que puedan quedar retenidos en el filtro asegurando así la calidad del producto.The extruder is an extruder with changer filters in case there are agglomerates or infused that may remain retained in the filter thus ensuring product quality.
Este último proceso trata que el compuesto que se quiere conseguir sea lo más homogéneo y bien dispersado posible.This last process deals with the compound that you want to achieve the most homogeneous and well dispersed possible.
Por último se filtra el plástico que todavía se encuentra en estado líquido a 200ºC de temperatura.Finally the plastic that is still filtered is filtered It is in a liquid state at 200ºC.
Y a partir de aquí el material que va saliendo de la extrusora, mediante un sistema granceador, se corta en cabezal bajo agua para hacer la granza, se seca y se almacena en un silo.And from here the material that comes out of the extruder, by means of a granceador system, it is cut in head under water to make the pellet, dried and stored in a silo.
De acuerdo con un ejemplo de realización preferido la poliolefina utilizada es 100% polietileno reciclado.According to an embodiment example preferred the polyolefin used is 100% polyethylene recycling.
En una posible alternativa la poliolefina es 100% polipropileno reciclado.In a possible alternative the polyolefin is 100% recycled polypropylene.
De acuerdo a un tercer posible ejemplo de realización la poliolefina es cualquier mezcla de polietileno reciclado y polietileno reciclado.According to a third possible example of embodiment the polyolefin is any mixture of polyethylene recycled and recycled polyethylene.
La invención también prevé preparar la composición explicada en forma de un film compuesto por un 60% de dicha composición, en forma de granza y el resto con poliolefinas recicladas o vírgenes.The invention also provides for preparing the composition explained in the form of a film composed of 60% of said composition, in the form of pellets and the rest with polyolefins Recycled or virgin.
La figura 1 ilustra el proceso de fabricación del material con elevado porcentaje en peso de Carbonato de Calcio (superior al 75%) y Poliolefinas recicladas (inferior al 23%).Figure 1 illustrates the manufacturing process of the material with high weight percentage of calcium carbonate (greater than 75%) and recycled polyolefins (less than 23%).
Los distintos elementos de la figura son:The different elements of the figure are:
- 1 y 2 1 and 2
- Silos que contienen las Poliolefinas recicladasSilos containing Polyolefins recycled
- 3 3
- Silo de Carbonato CálcicoCalcium Carbonate Silo
- 4 4
- Silo con óxido de CalcioSilo with Calcium Oxide
- 5 5
- Silo con Estearato de ZincZinc Stearate Silo
- 6 6
- Silo con el agente antioxidanteSilo with the antioxidant agent
- 77
- Dosificador gravimétrico tipo Brabender (loss-in-weight-feeder)Brabender type gravimetric dispenser (loss-in-weight-feeder)
- 88
- Mezcladora en continuo tipo Farrel Continous mixer 9UMFarrel Continous mixer type continuous mixer 9UM
- 9 9
- Extrusora con cambiador de filtrosExtruder with filter changer
- 10 10
- Silos que contienen el producto acabado en granza, o cualquier otra forma deseada.Silos containing the finished product in pellets, or any other desired way.
Claims (11)
- \bullet?
- dosificación de unos componentes de partida comprendiendo entre un 76% y 80% en peso de carbonato cálcico, entre un 11% y un 23% en peso de poliolefina reciclada y entre un 1% y 3% en peso de otras cargas;dosage of some components Starting between 76% and 80% by weight of carbonate calcium, between 11% and 23% by weight of recycled polyolefin and between 1% and 3% by weight of other charges;
- \bullet?
- mezclado a temperatura ambiente de dichos componentes e introducción en una mezcladora en continuo durante un período de tiempo de aproximadamente 2 segundos que evita la degradación del material y proporciona una buena dispersión;mixed at room temperature of said components and introduction into a continuous mixer over a period of approximately 2 seconds that avoids material degradation and provides a good dispersion;
- \bullet?
- fundido de toda la masa de polímero junto con el carbonato y dichas cargas;cast of the entire mass of polymer together with the carbonate and said fillers;
- \bullet?
- extrusión de la mezcla fundida con una extrusora con cambiador de filtros; ymelt extrusion with an extruder with filter changer; Y
- \bullet?
- filtrado del plástico que todavía se encuentra en estado líquido a 200ºC de temperatura.plastic filtering that it is still in a liquid state at 200ºC of temperature.
\vskip1.000000\baselineskip\ vskip1.000000 \ baselineskip
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201000369A ES2343725B1 (en) | 2010-03-22 | 2010-03-22 | A COMPOSITION OF RECYCLABLE MATERIAL BASED ON RECYCLED POLYOLEFINE AND HIGH CONTENT OF CALCIUM CARBONATE AND PROCEDURE FOR OBTAINING SUCH COMPOSITION. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201000369A ES2343725B1 (en) | 2010-03-22 | 2010-03-22 | A COMPOSITION OF RECYCLABLE MATERIAL BASED ON RECYCLED POLYOLEFINE AND HIGH CONTENT OF CALCIUM CARBONATE AND PROCEDURE FOR OBTAINING SUCH COMPOSITION. |
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| Publication Number | Publication Date |
|---|---|
| ES2343725A1 ES2343725A1 (en) | 2010-08-06 |
| ES2343725B1 true ES2343725B1 (en) | 2011-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201000369A Expired - Fee Related ES2343725B1 (en) | 2010-03-22 | 2010-03-22 | A COMPOSITION OF RECYCLABLE MATERIAL BASED ON RECYCLED POLYOLEFINE AND HIGH CONTENT OF CALCIUM CARBONATE AND PROCEDURE FOR OBTAINING SUCH COMPOSITION. |
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| JP6865619B2 (en) * | 2017-03-31 | 2021-04-28 | ユニ・チャーム株式会社 | How to Make Recycled Products, Recycled Resin Pellets, and Recycled Films |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW553993B (en) * | 2002-10-17 | 2003-09-21 | Wen Hun Plastic Entpr Co Ltd | Polyethylene granular composition recycled from waste plastic bags or films |
| FR2922141A1 (en) * | 2007-10-15 | 2009-04-17 | Mpr Polymers Soc Par Actions S | Recycling of polyolefin film waste previously shredded, crushed, and fragmented, useful to obtain granules to prepare formulations, comprises compressing waste fragment, extruding, compression melting, filtrating the fragmented wastes |
| AT506527A1 (en) * | 2008-03-07 | 2009-09-15 | Hlendorfer Kreidefabrik Margit | ADDITIVE MASTERBATCH OR COMPOUND CONTAINERS AND PACKAGING PRODUCED BASED ON PET AND THEREOF |
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