IT201600070697A1 - POLYMATERIC GRANULATE FOR REPRODUCING THERMOPLASTIC PRODUCTIONS COMPETITIVE CHARACTERISTICS WITH WOOD. - Google Patents
POLYMATERIC GRANULATE FOR REPRODUCING THERMOPLASTIC PRODUCTIONS COMPETITIVE CHARACTERISTICS WITH WOOD.Info
- Publication number
- IT201600070697A1 IT201600070697A1 IT102016000070697A IT201600070697A IT201600070697A1 IT 201600070697 A1 IT201600070697 A1 IT 201600070697A1 IT 102016000070697 A IT102016000070697 A IT 102016000070697A IT 201600070697 A IT201600070697 A IT 201600070697A IT 201600070697 A1 IT201600070697 A1 IT 201600070697A1
- Authority
- IT
- Italy
- Prior art keywords
- wood
- thermoplastic
- granulate
- reproducing
- polymateric
- Prior art date
Links
- 239000002023 wood Substances 0.000 title claims description 19
- 239000008187 granular material Substances 0.000 title claims description 6
- 229920001169 thermoplastic Polymers 0.000 title description 6
- 239000004416 thermosoftening plastic Substances 0.000 title description 6
- 230000002860 competitive effect Effects 0.000 title description 5
- -1 polypropylene Polymers 0.000 claims description 9
- 235000013312 flour Nutrition 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 239000000463 material Substances 0.000 description 13
- 238000000465 moulding Methods 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- 239000000470 constituent Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
GRANULATO POLIMATERICO PER PRODUZIONI TERMOPLASTICHE RIPRODUCENTI CARATTERISTICHE CONCORRENZIALI AL LEGNO POLYMATERIC GRANULES FOR THERMOPLASTIC PRODUCTIONS REPRODUCING COMPETITIVE CHARACTERISTICS TO WOOD
Campo di applicazione dell’invenzione Field of application of the invention
La presente invenzione si riferisce alla definizione di un materiale utilizzabile per lo stampaggio con la usuale tecnologia termoplastica con temperature di lavorazione variabile dai 160 ai 210 gradi centigradi . avente caratteristiche meccaniche , di lavorabilità e in particolare estetiche , competitive con il legno In particolare l'oggetto stampato con il materiale oggetto della presente invenzione può essere sottoposto a quei procedimenti di finitura quali la vibratura e lucidatura per esaltarne le caratteristiche estetiche The present invention refers to the definition of a material that can be used for molding with the usual thermoplastic technology with processing temperatures ranging from 160 to 210 degrees centigrade. having mechanical, workability and in particular aesthetic characteristics, competitive with wood In particular, the object printed with the material object of the present invention can be subjected to those finishing processes such as vibrating and polishing to enhance its aesthetic characteristics
Descrizione dell’arte nota Description of the known art
I materiali utilizzati per lo stampaggio con tecnologia termoplastica attualmente sul mercato , studiati per stampare prodotti concorrenziali al legno , non hanno la possibilità di riprodurre quegli aspetti tipici del legno come le v The materials used for molding with thermoplastic technology currently on the market, designed to print products that are competitive with wood, do not have the possibility of reproducing those typical aspects of wood such as the v
lucentezza . Quest'ultima derivabile da quei processi di finitura, e cioè levigatura e lucidatura , ai quali non possono essere sottoposti . shine. The latter derives from those finishing processes, that is sanding and polishing, to which they cannot be subjected.
Infatti i compound contenenti farine di legno attualmente in commercio hanno matrice polipropilenica o polietilenica , materiali tipicamente non sottoponibili a lucidatura. In fact, the compounds containing wood flours currently on the market have a polypropylene or polyethylene matrix, materials typically not subject to polishing.
Sommario dell’invenzione Summary of the invention
Nella presente invenzione è definito il procedimento e i costituenti per la produzione di un materiale granulare atto ad essere introdotto nelle tramogge delle presse per produzioni termoplastiche e produrre quindi oggetti dalle qualità e caratteristiche concorrenziali al legno . Oggetti che possono essere j rifiniti con lavorazioni di vibratura e levigatura in acqua e polveri abrasive per passare quindi a successive lavorazioni di lucidatura . The present invention defines the process and the constituents for the production of a granular material suitable for being introduced into the hoppers of the presses for thermoplastic production and therefore to produce objects with qualities and characteristics that are competitive with wood. Objects that can be finished with vibrating and sanding processes in water and abrasive powders to then move on to subsequent polishing processes.
Descrizione dettagliata dell’invenzione Detailed description of the invention
Il materiale granulare definito nella presente invenzione è prodotto attraverso trafilatura con trafila per materiali termoplastici . Il tipo di trafila non è caratterizzante perché le concentrazioni ottenibili con una trafila bivite di notevole potenza con un solo passaggio , possono essere ottenute attraverso successivi passaggi con trafile monovite meno potenti. The granular material defined in the present invention is produced by drawing with a die for thermoplastic materials. The type of die is not characterizing because the concentrations obtainable with a twin-screw die of considerable power with a single pass, can be obtained through subsequent passages with less powerful single-screw dies.
Il procedimento consiste nel trafilare e granulare separatamente due tipi di materiali , successivamente miscelarli , per produrre con ulteriore utilizzo della trafila e granulatrice , il prodotto finale da utilizzare per lo stampaggio The process consists in drawing and granulating two types of materials separately, then mixing them, to produce with further use of the die and granulator, the final product to be used for molding.
termoplastico. thermoplastic.
I due tipi di materiale sono i seguenti considerando le percentuali espresse in peso: The two types of material are the following considering the percentages expressed by weight:
a) to)
30% farina di legno 30% wood flour
70% polipropilene bassa -media densità 70% low-medium density polypropylene
un grammo di stearato di zinco per ogni kg dei costituenti one gram of zinc stearate for each kg of constituents
oppure or
70% farina di legno 70% wood flour
30% polipropilene alta densità 30% high density polypropylene
un grammo di stearato di zinco per ogni kg dei costituènti one gram of zinc stearate for each kg of constituents
oppure or
75% farina di legno 75% wood flour
5% polipropilene alta densità 5% high density polypropylene
20% polietilene alta densità 20% high density polyethylene
un grammo di stearato di zinco per ogni kg dei costituenti one gram of zinc stearate for each kg of constituents
Le tre composizioni sopra sono in ordine crescente e di farina di legno e di potenza della trafila , necessaria per l'ottenimento delle concentrazioni scritte ,con un solo passaggio. Concentrazioni di legno diverse possono essere ottenute per interpolazione delle formulazioni sopra . Lo stearato di zinco ha funzione essenzialmente lubrificante The three compositions above are in ascending order and of wood flour and power of the die, necessary to obtain the written concentrations, with a single step. Different wood concentrations can be obtained by interpolation of the above formulations. Zinc stearate essentially has a lubricating function
Per ogni composizione la temperatura di lavoro della trafila deve essere tra i 150°C e 180° C , mai superare i 220° C per evitare il deterioramento dei componenti b) For each composition the working temperature of the die must be between 150 ° C and 180 ° C, never exceed 220 ° C to avoid deterioration of the components b)
98% PMMA trasparente 98% transparent PMMA
2% Polipropilene bassa o media densità 2% Low or medium density polypropylene
composizione da trafilare tra i 180° C e 225°C composition to be drawn between 180 ° C and 225 ° C
Prodotti i materiali 'a' e 'b' , questi si miscelano e si trafilano in proporzione variabile per ottenere le caratteristiche del prodotto finito , tenendo conto che quanto è più alta la percentuale del materiale ’b' , tanto potrà essere più profondo il processo abrasivo a cui verrà sottoposto l'oggetto stampato con questo materiale, prima della successiva lucidatura. Se si vorrà produrre un compound che possa avere la massima concentrazione di legno si utilizzerà la terza formulazione 'a' nella sua preparazione. Once the materials 'a' and 'b' are produced, these are mixed and drawn in variable proportions to obtain the characteristics of the finished product, taking into account that the higher the percentage of material 'b', the deeper the process can be. abrasive to which the object printed with this material will be subjected, before the subsequent polishing. If you want to produce a compound that can have the maximum concentration of wood, the third formulation 'a' will be used in its preparation.
Nel trafilare i materiali 'a' e ’b' dopo la loro miscelazione , si terrà conto che la temperatura di lavoro della trafila non superi i 220° C in ogni zona di lavoro , né in prossimità della tramoggia , né della testa di estrusione. When drawing materials 'a' and 'b' after mixing them, it will be taken into account that the working temperature of the die does not exceed 220 ° C in each work area, neither in the vicinity of the hopper, nor of the extrusion head.
Il materiale così prodotto .sarà posto prima del suo utilizzo , in forni ventilati alla temperatura di 80° per almeno 6 ore . The material thus produced will be placed before its use in ventilated ovens at a temperature of 80 ° for at least 6 hours.
La presente invenzione è caratterizzata dal comportamento del metacrilato insieme agli altri polimeri presenti nella sua composizione , infatti nell'oggetto che si stamperà utilizzando il materiale che abbiamo definito , il métacrilato si troverà in concentrazioni maggiori sulla superficie dell'oggetto , e per le sue caratteristiche fisico- meccaniche , consentirà di rifinire l'oggetto stesso con operazioni di levigatura e lucidatura , tali da poter conferire all'oggetto l'aspetto e il tatto di un analogo in legno naturale , lucidato a cera o verniciato trasparente . Ciò è tanto più vero se aggiungeremo al prodotto , in fase di stampaggio , per imitare le striature di diverso colore del legno , coloranti apolari , tipicamente usati nel settore della pelletteria insieme a coloranti polari o coloranti inerti , cioè pigmenti . Questo sempre per la distribuzione disomogenea dei tipi di polimeri presenti nell'oggetto stampato e per la loro diversa disponibilità a formare legami polari . La farina di legno presente oltre a nobilitare il materiale da un punto di vista estetico e ambientale , nel senso di un recupero di materiale di scarto del settore industriale del legno , assume la funzione di rendere possibile la miscelazione dei polimeri metacrilato , polipropilene , polietilene . infatti senza la farina di legno , non potrebbero essere definibili tali concentrazioni , per l'instaurarsi di fenomeni di incompatibilità trai polimeri e conseguente sfogliamento nello stampaggio. The present invention is characterized by the behavior of methacrylate together with the other polymers present in its composition, in fact in the object that will be printed using the material we have defined, the methacrylate will be found in higher concentrations on the surface of the object, and due to its characteristics physical-mechanical, will allow the object itself to be finished with smoothing and polishing operations, such as to give the object the appearance and touch of an analogue in natural wood, polished with wax or transparent varnish. This is all the more true if we add to the product, during the molding phase, to imitate the streaks of different colors of the wood, apolar dyes, typically used in the leather goods sector together with polar dyes or inert dyes, i.e. pigments. This is always due to the uneven distribution of the types of polymers present in the printed object and their different availability to form polar bonds. The wood flour present in addition to ennobling the material from an aesthetic and environmental point of view, in the sense of a recovery of waste material from the industrial wood sector, takes on the function of making it possible to mix methacrylate, polypropylene and polyethylene polymers. in fact, without the wood flour, such concentrations could not be defined, due to the onset of phenomena of incompatibility between the polymers and consequent flaking in the molding.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102016000070697A IT201600070697A1 (en) | 2016-07-07 | 2016-07-07 | POLYMATERIC GRANULATE FOR REPRODUCING THERMOPLASTIC PRODUCTIONS COMPETITIVE CHARACTERISTICS WITH WOOD. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102016000070697A IT201600070697A1 (en) | 2016-07-07 | 2016-07-07 | POLYMATERIC GRANULATE FOR REPRODUCING THERMOPLASTIC PRODUCTIONS COMPETITIVE CHARACTERISTICS WITH WOOD. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT201600070697A1 true IT201600070697A1 (en) | 2018-01-07 |
Family
ID=58638909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT102016000070697A IT201600070697A1 (en) | 2016-07-07 | 2016-07-07 | POLYMATERIC GRANULATE FOR REPRODUCING THERMOPLASTIC PRODUCTIONS COMPETITIVE CHARACTERISTICS WITH WOOD. |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT201600070697A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2865501A1 (en) * | 2012-09-06 | 2015-04-29 | LG Hausys, Ltd. | Wood polymer/plastic composite material having transparent surface layer |
| CN105199413A (en) * | 2015-10-08 | 2015-12-30 | 安徽冠宜箱包有限公司 | Case buckle made of saw dust |
-
2016
- 2016-07-07 IT IT102016000070697A patent/IT201600070697A1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2865501A1 (en) * | 2012-09-06 | 2015-04-29 | LG Hausys, Ltd. | Wood polymer/plastic composite material having transparent surface layer |
| CN105199413A (en) * | 2015-10-08 | 2015-12-30 | 安徽冠宜箱包有限公司 | Case buckle made of saw dust |
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