TW202421404A - Imitation wood texture forming method - Google Patents

Abstract

The invention relates to a method for forming imitation wood texture. The method for forming the wood-like texture is applied to recycled wood-like plastic waste and recycled materials, including: crushing steps, adding steps, placing steps, granulating steps and forming steps. Wherein, the crushing step is to powderize the imitation wood plastic waste and recycled materials; the adding step is to add functional additives to the wood-like plastic waste and recycled materials that are in powder form after the mixing step; the placement step is to place the wood-like plastic waste and recycled materials and these functional additives for a preset time to mix to form recycled raw materials; the granulation step is to make the recycled raw materials after adding the functional additives into granular polymer raw materials; the molding step is to melt the polymer raw materials into a fluid state to make recycled imitation wood products.

Description

Method for forming imitation wood texture

The present invention relates to a method for forming a wood-like texture, and more particularly to a method for forming a wood-like texture by recycling and reusing wood-like plastic scraps and recycled materials.

Among many natural resources, forest resources are one of the most important assets on earth. In addition to nurturing a rich and diverse ecosystem of plants and animals, forest resources also provide a variety of materials needed by humans and are closely related to human life. Therefore, how to increase the utilization rate, recycling rate and reuse rate of wood has become an important issue that countries around the world are eager to break through, in order to reduce the unnecessary waste of natural resources and effectively reduce the manpower and material resources required for waste disposal.

In view of this, in recent years, the research on the preparation of polymer plastic biocomposites (woodplastic composite, WPC) from wood residues or fragments has been increasingly valued by countries around the world. The reason is that WPC can not only effectively utilize wood fiber residues to prepare composite materials, but also has better dimensional stability and resistance to pests and diseases than real wood. Therefore, without special maintenance, its service life can be as long as 25 to 30 years. At present, the application scope of WPC is mainly in transportation vehicles and non-structural and semi-structural buildings.

Generally speaking, composite materials are made by combining two or more raw materials of different properties with different processing methods to capture the characteristics and advantages of each raw material, exert synergistic effects, and produce a new material with excellent performance and can meet the needs. Among many composite materials, fiber reinforced composite materials have better performance and wider applications. In recent years, WPC has largely replaced traditional metal, plastic and solid wood materials in use, and is often used in products such as pavement, fences, exterior wall panels, window frames and roof materials. However, there are still many problems in combining two or more raw materials with different properties through different processing methods. Among them, the biggest problem is that the chemical bonding between the colloids is often hindered due to the different surface polarities.

In addition, in an environment where environmental awareness is growing, the aforementioned WPC composites or other plastic composites still cannot be widely used or applied to people's daily life needs due to the aforementioned structural defects and toxicity problems. In addition, WPC composites or other plastic composites are difficult to have the texture of real wood, and they cannot meet the needs of consumers who pursue aesthetics. Therefore, how to provide an effective way to process the scraps and recycled materials of WPC composites and recycle them into imitation wood products for various purposes is a key project to be studied by researchers.

In view of the above shortcomings, the inventor has studied ways to improve these shortcomings and finally came up with the present invention.

The purpose of the present invention is to provide a method for forming imitation wood textures, which is applied to recycled imitation wood plastic scraps and reclaimed materials. The method powderizes the imitation wood plastic scraps and reclaimed materials, and adds a plurality of functional additives to the recycled raw materials in powder form to produce recycled imitation wood finished products. In this way, imitation wood plastic scraps and reclaimed materials can be effectively remade into various finished products according to user needs, greatly reducing the harm to the environment caused by incineration of waste, and at the same time recycling the waste for reuse.

Another object of the present invention is to provide a method for forming a wood-like texture. After using a specific device to powderize wood-like plastic scraps and recycled materials, a functional additive in an appropriate proportion is added to improve the fluidity of polystyrene, synthetic rubber, emulsified synthetic rubber, and styrene-butadiene copolymer elastomer, so that they can be used in a molding machine to re-make various finished products. At the same time, by adding a functional additive in an appropriate proportion, the above mixture is effectively prevented from The die head expands during subsequent injection molding or extrusion molding, and the interfacial tension between polystyrene, synthetic rubber and the emulsified synthetic rubber is reduced and the adhesion of the interface is improved to stabilize the mixture in the form of imitation wood. As a result, the mechanical properties such as tensile strength, flexural modulus and impact strength of the imitation wood product of the present invention can be significantly improved, thereby producing a low-cost and stable-quality imitation wood product and creating new economic value and benefits.

Another object of the present invention is to provide a method for forming a wood-like texture. Since the raw materials are wood-like plastic scraps and recycled materials, the finished wood-like products are composed of polystyrene, synthetic rubber, emulsified synthetic rubber, and elastomers of styrene and butadiene copolymers with different glass transition temperatures. Since different compositions have different glass transition temperatures, the wood-like plastic scraps and recycled materials are not completely mixed with the functional additives through the placement step, and the temperature is between 150°C and 260°C in the molding step, so that part of the composition is completely melted but part of the composition is not completely melted, so that the recycled and remade wood-like finished products can have natural textures like real wood.

In order to achieve the above-mentioned purpose and effect, the method for forming the imitation wood texture provided by the present invention is applied to recycled imitation wood plastic scraps and recycled materials. The method for forming the imitation wood texture comprises: a crushing step, which is to powderize the imitation wood plastic scraps and recycled materials; an adding step, which is to add a plurality of functional additives to the imitation wood plastic scraps and recycled materials in powder form after the crushing step; a placing step, which is to place the imitation wood plastic scraps and recycled materials after the adding step. The waste materials of wood plastic and recycled materials are placed for a preset time with the functional additives to mix and form a recycled raw material; a granulation step is to input the recycled raw material mixed with the functional additives into a granulation mechanism to produce a plurality of polymer raw materials in a granular form; and a molding step is to input the polymer raw materials into a molding mechanism, and the molding mechanism directly manufactures a recycled imitation wood product through the polymer raw materials melted into a flowing state.

Preferably, according to the method for forming the imitation wood texture of the present invention, the imitation wood plastic scraps and recycled materials are a mixture of polystyrene, a synthetic rubber, an emulsified synthetic rubber and an elastomer of styrene and butadiene copolymer.

Preferably, according to the method for forming the simulated wood texture of the present invention, the weight percentage of the polystyrene is between 30% and 85%, the weight percentage of the synthetic rubber is between 5% and 50%, the weight percentage of the emulsified synthetic rubber is between 3% and 45%, and the weight percentage of the elastomer of the copolymer of styrene and butadiene is between 2% and 35%.

Preferably, according to the method for forming the imitation wood texture of the present invention, the functional additives include an organic stabilizer, a coupling agent, a thermal stabilizer, a gelling accelerator, a foaming agent and a light absorber.

Preferably, according to the method for forming the imitation wood texture of the present invention, the percentage of the organic stabilizer (Parts per hundred parts of resin, PHR) is between 0.1%-10%, the percentage of the coupling agent is between 0.1%-5%, the percentage of the thermal stabilizer is between 0.1%-3%, the percentage of the gelling accelerator is between 0.1%-10%, the percentage of the foaming agent is between 0.1%-3%, and the percentage of the light absorber is between 0.1%-3%.

Preferably, according to the method for forming the simulated wood texture of the present invention, the organic stabilizer is selected from one of an antioxidant and a light stabilizer.

Preferably, according to the method for forming the simulated wood texture of the present invention, the functional additives further include a filler and a colorant, and the filler is selected from one or a combination of calcium carbonate and talc.

Preferably, according to the method for forming the imitation wood texture of the present invention, the percentage of the light calcium carbonate is between 3% and 25%, and the percentage of the colorant is between 0.01% and 2.5%.

Preferably, according to the method for forming the imitation wood texture of the present invention, the molding step is performed at a temperature between 150°C and 260°C to mold the recycled imitation wood product by one of extrusion molding and injection molding.

In summary, the method for forming the imitation wood texture provided by the present invention is applied to recycled imitation wood plastic scraps and reclaimed materials. The method for forming the texture powderizes the imitation wood plastic scraps and reclaimed materials, and adds a plurality of functional additives to the recycled raw materials in powder form to produce recycled imitation wood finished products. In this way, the imitation wood plastic scraps and reclaimed materials can be effectively remade into various finished products according to user needs, greatly reducing the harm to the environment caused by the incineration of waste, and at the same time recycling the waste for reuse. In addition, the present invention uses a specific device to powderize the wood-like plastic scraps and recycled materials, and then adds a proper proportion of functional additives to improve the fluidity of polystyrene, synthetic rubber, emulsified synthetic rubber styrene and butadiene copolymer elastomers, so that they can be used in molding machines to re-make various finished products. At the same time, by adding a proper proportion of functional additives, the above mixture can be effectively prevented from bulging in the die head during subsequent injection molding or extrusion molding. The invention can prevent the swelling of the imitation wood and reduce the interfacial tension between polystyrene, synthetic rubber, the emulsified synthetic rubber and the elastomer of styrene and butadiene copolymer and improve the adhesion of the interface to stabilize the mixture to be molded into the imitation wood form. Thus, the mechanical properties such as tensile strength, flexural modulus and impact strength of the imitation wood product of the invention can be significantly improved, thereby producing a low-cost and stable-quality imitation wood product and creating new economic value and benefits.

In order to enable persons familiar with the art to understand the purpose, features and effects of the present invention, the present invention is described in detail as follows through the following specific embodiments and in conjunction with the attached drawings.

The inventive concept will now be more fully described below with reference to the accompanying drawings in which exemplary embodiments of the inventive concept are shown. Advantages and features of the inventive concept and methods of achieving the same will become apparent from the exemplary embodiments described in more detail below with reference to the accompanying drawings. However, it should be noted that the inventive concept is not limited to the following exemplary embodiments, but may be implemented in various forms. Therefore, the exemplary embodiments are provided only to disclose the inventive concept and to enable those skilled in the art to understand the categories of the inventive concept. In the drawings, the exemplary embodiments of the inventive concept are not limited to the specific examples provided herein and are enlarged for clarity.

The terms used herein are used only to describe specific embodiments and are not intended to limit the present invention. Unless the context clearly indicates otherwise, the singular forms of the terms "a", "an" and "the" used herein are intended to include the plural forms as well. The term "and/or" used herein includes any and all combinations of one or more of the relevant listed items. It should be understood that when an element is said to be "connected" or "coupled" to another element, the element may be directly connected or coupled to the other element or there may be intermediate elements.

Similarly, it should be understood that when an element (such as a layer, region, or substrate) is said to be "on" another element, the element may be directly on the other element, or there may be intervening elements. In contrast, the term "directly" means that there are no intervening elements. It should be further understood that when the terms "include" and "comprising" are used herein, they indicate the presence of the stated features, integers, steps, operations, elements, and/or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Furthermore, exemplary embodiments in the detailed description will be illustrated by cross-sectional views that are idealized exemplary views of the inventive concept. Accordingly, the shapes of the exemplary views may be modified according to manufacturing techniques and/or tolerable errors. Therefore, exemplary embodiments of the inventive concept are not limited to the specific shapes shown in the exemplary views, but may include other shapes that may be produced according to the manufacturing process. The areas illustrated in the drawings are of general nature and are used to illustrate specific shapes of the elements. Therefore, this should not be considered as limiting the scope of the inventive concept.

It should also be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish between various elements. Therefore, the first element in some embodiments may be referred to as the second element in other embodiments without departing from the teachings of the present invention. The exemplary embodiments of the aspects of the inventive concept explained and illustrated herein include their complementary counterparts. Throughout this specification, the same reference numerals or the same indicators represent the same elements.

Furthermore, exemplary embodiments are described herein with reference to cross-sectional views and/or plan views, wherein the cross-sectional views and/or plan views are idealized exemplary illustrations. Therefore, deviations from the illustrated shapes due to, for example, manufacturing techniques and/or tolerances are expected. Therefore, the exemplary embodiments should not be considered limited to the shapes of the regions shown herein, but are intended to include shape deviations due to, for example, manufacturing. Therefore, the regions shown in the figures are schematic, and their shapes are not intended to illustrate the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

Please refer to Figures 1-3, Figure 1 is a block diagram of the method for forming the imitation wood texture of the present invention; Figure 2 is a schematic diagram of the system for forming the imitation wood texture according to the present invention; Figure 3 is a schematic diagram for illustrating the actual implementation of the method for forming the imitation wood texture according to the present invention. As shown in Figures 1-3, the method for forming the imitation wood texture provided by the present invention is applied to recycled imitation wood plastic scraps and recycled materials 11, and the texture forming method includes the following steps:

In the crushing step S1, the wood-like plastic scraps and the recycled materials 11 are powdered, and then the adding step S2 is performed.

In the adding step S2, a plurality of functional additives 12 are added to the wood-like plastic scraps and recycled materials 11 in powder form after the crushing step S1, and then a placing step S3 is performed.

In a placing step S3, the waste wood plastic materials and recycled materials after adding the functional additives 12 in step S2 are placed for a preset time to mix and form recycled raw materials 13, and then a granulation step S4 is performed.

In the granulation step S4, the recycled raw material 13 after mixing with the functional additive 12 is input into the granulation mechanism 24 (as shown in FIG. 2 ) to produce a plurality of polymer raw materials 14 in a granular form, and then the molding step S5 is performed.

In the forming step S5, the polymer raw material 14 is input into the forming mechanism 25 (as shown in FIG. 2 ). The forming mechanism 25 directly forms the recycled imitation wood product 15 through the polymer raw material 14 that has been melted into a flowing state.

Specifically, the wood-like plastic scraps and recycled materials 11 according to the present invention are a mixture of polystyrene (Polystyrene), synthetic rubber (Styrene-Butadiene Rubber, SBR), emulsion polymerized butadiene styrene rubber (ESBR) and an elastomer copolymerized with styrene and butadiene, but the present invention is not limited thereto.

Specifically, the functional additive 12 according to the present invention includes an organic stabilizer, a coupling agent, a thermal stabilizer, a gelling accelerator, a foaming agent, and a light absorber, but the present invention is not limited thereto.

More specifically, the organic stabilizer according to the present invention can be used to prevent the recycled raw material 13 from deteriorating. In some embodiments, the organic stabilizer can be an antioxidant, an antiozonant, a light-protection means, a UV stabilizer, a UV absorber or a UV blocker, a lubricant, a mold-release agent, a separating means, a chain-lengthening additive, a colorant, a marking means, an organic pigment, an IR absorber, a NIR absorber, a photochromic agent, a mold-release agent, a separating means, a chain-lengthening additive, a colorant, a marking means, an organic pigment, an IR absorber, a NIR absorber, a photochromic agent, a mold-release agent, a separating means, a chain-lengthening additive, a colorant, a marking means, an organic pigment, a IR absorber, a NIR absorber, a photochromic agent, a mold-release agent, a separating means, a chain-lengthening additive, a colorant, a marking means, an organic pigment, a IR absorber, a NIR absorber, a photochromic agent, a mold-release agent, a agents, optical brighteners, polytetrafluoroethylene, halogen-free flame retardants, natural layer silicates, synthetic layer silicates, etc. More specifically, in some embodiments, the organic stabilizer according to the present invention can be selected from one of an oxidation stabilizer and a photostabilizer, wherein the antioxidant can be Benzenepropanoic acid, 3,5-bis(1,1-dimethyl-ethyl)-4-hydroxy-C7-C9 branched alkyl esters, and the photostabilizer can be N-(1-Acetyl-2,2,6,6-tetramethyl-4-piperidinyl)-2-dodecylsuccinimide, but the present invention is not limited thereto.

More specifically, the coupling agent according to the present invention can be used to improve the adhesion and adhesion reliability between the adhesive composition and the packaging material. It should be further explained that the main function of the coupling agent according to the present invention is to improve the adhesion reliability of the mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer when it is maintained under high temperature and/or high humidity conditions for a long period of time. In some embodiments, the coupling agent may include a silane compound, such as γ-glycidyloxypropyltriethoxysilane. Silane, γ-glycidyloxypropyl trimethoxysilane, γ-glycidyloxypropyl methyldiethoxysilane, γ-glycidyloxypropyl triethoxysilane, 3-butylpropyl trimethoxysilane, vinyl trimethoxysilane, vinyl triethoxysilane, γ-methacryloxypropyl trimethoxysilane, γ-methacryloxypropyl triethoxysilane , γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane, 3-isocyanatepropyltriethoxysilane, γ-acetylacetatepropyltrimethoxysilane, γ-acetylacetatepropyltriethoxysilane, β-cyanoacetyltrimethoxysilane, β-cyanoacetyltriethoxysilane and acetoxyacetyltrimethoxysilane, but the present invention is not limited thereto.

More specifically, the foaming agent according to the present invention is mainly used to make the recycled imitation wood product 15 have a microbubble structure similar to wood. In some embodiments, the foaming agent according to the present invention can be one of azodicarbonamide, 4,4'-oxybisbenzenesulfonyl hydrazine, p-toluenesulfonyl hydrazine and an inorganic foaming agent (sodium bicarbonate) or a combination thereof. Preferably, the foaming agent can be selected from a foaming agent with a particle size of 2μm to 25μm to avoid uneven foaming of the finished product and premature foaming, but the present invention is not limited thereto.

More specifically, in some embodiments, the gelling agent is selected from, but not limited to, acrylates. The light absorber may include one or more components selected from the group consisting of benzotriazole compounds, benzophenone compounds, salicylate compounds, cyanoacrylate compounds, oxanilide compounds, and hindered amine light stabilizers (HALS), but the present invention is not limited thereto.

Thus, according to the method for forming the imitation wood texture of the present invention, a plurality of functional additives 12 are added to the powdered recycled raw material 13 after the crushing step S1 through the adding step (S3), so that the mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer can have sufficient ductility, and the powdered recycled raw material 13 is made into a granular polymer raw material 14 through the granulation step (S4), and finally the polymer raw material 14 is made into a recycled imitation wood finished product 15 through the molding step (S5), thereby greatly reducing the harm caused to the environment by the incineration of waste, and recycling the waste at the same time.

Please refer to FIG. 2 . The present invention is based on the above-mentioned method for forming imitation wood texture and further provides a system 200 for forming imitation wood texture. The system 200 is applied to recycled imitation wood plastic scraps and recycled materials 11. The recycling system 200 includes: a crushing mechanism 21, an adding mechanism 22, a placing mechanism 23, a granulating mechanism 24 and a molding mechanism 25.

Specifically, as shown in FIG. 2-3, according to the pulverizing mechanism 21 of the present invention, the wood-like plastic scraps and recycled materials 11 are powdered to facilitate subsequent operations. The wood-like plastic scraps and recycled materials 11 are a mixture of polystyrene, synthetic rubber, emulsified synthetic rubber, and styrene-butadiene copolymerized elastomer. In some embodiments, the weight percentage of polystyrene is between 30%-85%, the weight percentage of synthetic rubber is between 5%-50%, the weight percentage of emulsified synthetic rubber is between 3%-45%, and the weight percentage of styrene-butadiene copolymerized elastomer is between 2%-35%. However, the present invention is not limited thereto. It should be further explained that, since the proportions of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer in the wood-like plastic scraps and recycled materials 11 of the present invention are different, when the recycled and remanufactured wood-like finished product 15 is made, the wood-like finished product 15 will have uneven patterns on the same cross-section, achieving a texture like tree rings, achieving an effect close to the pattern of real wood. At the same time, the outer surface of the wood-like finished product 15 will also produce uneven patterns, making the outer surface of the wood-like finished product 15 rough and forming an imitation wood rough surface, achieving the effect of patterns and rough surfaces close to real wood, greatly increasing the applicability of the present invention.

It is worth mentioning that since the imitation wood plastic scraps and recycled materials 11 are in irregular shapes, such as blocks or sheets, it is difficult for users to perform various operations on the imitation wood plastic scraps and recycled materials 11. Therefore, the pulverizing mechanism 21 can effectively pulverize the imitation wood plastic scraps and recycled materials 11, thereby greatly improving the efficiency of the imitation wood texture forming system 200 according to the present invention, but the present invention is not limited to this.

Specifically, as shown in FIG. 2-3 , the adding mechanism 22 of the present invention is coupled to the crushing mechanism 21, and the adding mechanism 22 adds a plurality of functional additives 12 to the mixed wood-like plastic scraps and recycled materials 11 in powder form, wherein the functional additives 12 include organic stabilizers, coupling agents, thermal stabilizers, gelling accelerators, foaming agents, and light absorbers. It should be further explained that in some embodiments, the percentage of the organic stabilizer is between 0.1%-10%, the percentage of the coupling agent is between 0.1%-5%, the percentage of the thermal stabilizer is between 0.1%-3%, the percentage of the gelling accelerator is between 0.1%-10%, the percentage of the foaming agent is between 0.1%-3%, and the percentage of the light absorber is between 0.1%-3%. Thus, the functional additive 12 of the present invention is combined with the used wood-like plastic scraps and recycled materials 11 to effectively improve the fluidity of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer, so that the mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer can be applied to the subsequent molding machine. In addition, by adding an appropriate proportion of functional additives 12, the mixture can be effectively prevented from experiencing die expansion during subsequent injection molding or extrusion molding, and the interfacial tension between polystyrene, synthetic rubber and the emulsified synthetic rubber can be reduced and the adhesion of the interface can be improved to stabilize the mixture in a wood-like shape. In this way, the mechanical properties of the wood-like finished product 15, such as tensile strength, flexural modulus and impact strength, can be significantly improved, thereby producing a low-cost and high-quality wood-like finished product 15.

It is worth mentioning that in some embodiments, the functional additives 12 may further include fillers and colorants, the percentage of the filler is between 3% and 25%, and the percentage of the colorant is between 0.01% and 2.5%. More specifically, the filler may be one or a combination of calcium carbonate and talcum powder, but the present invention is not limited thereto. Thus, the filler can make the imitation wood product 15 have the same impact resistance as real wood. Moreover, the colorant can make the outer surface of the imitation wood product 15 have a color similar to that of real wood.

Specifically, as shown in FIG. 2-3 , the placement mechanism 23 of the present invention is coupled to the adding mechanism 22, and the placement mechanism 23 is used to place the polystyrene, the synthetic rubber, the emulsified synthetic rubber, the elastomer of the styrene-butadiene copolymer, and the functional additives 12 for a predetermined time to mix and form the recycled raw material 13. More specifically, in some embodiments, the preset time may be 1 hour, 6 hours, 12 hours or 24 hours, etc., so that the above-mentioned compositions are mixed with each other through the flow of polystyrene, synthetic rubber, the emulsified synthetic rubber and the elastomer of styrene and butadiene copolymer. Since the above-mentioned compositions are mixed only by placing them, rather than by other physical methods (such as stirring), the imitation wood product produced by the present invention can have a natural texture like real wood when it is not completely mixed. However, the present invention is not limited to this.

Specifically, the granulation mechanism 24 of the present invention is coupled to the placement mechanism 23, and the granulation mechanism 24 makes the recycled raw materials 13 after adding the functional additives 12 into a plurality of polymer raw materials 14 in the form of granules. In some embodiments, different granulation mechanisms 24 can produce different polymer raw materials 14 for different recycled raw materials 13. For example, the granulation mechanism 24 can be a water-stretching granulator or a die-cutting granulator, but the present invention is not limited thereto.

Specifically, as shown in FIG. 2-3 , the molding mechanism 25 of the present invention is coupled to the granulation mechanism 24. The molding mechanism 25 directly produces the recycled imitation wood product 15 through the polymer raw materials 14 that are melted into a flowing state. In some embodiments, the molding mechanism 25 can be selected from different molding mechanisms 25 according to user needs. For example, the molding mechanism 25 can be one of an injection molding machine and a hot press molding machine. When the injection molding machine is used, a smaller and finer imitation wood product 15 can be achieved. However, due to the limitation of the fluidity of the polymer raw material 14 itself, it is difficult to produce a larger imitation wood product 15 using the injection molding method. In this case, a hot press molding machine can be used to produce a larger imitation wood product 15. The user can choose which method is more appropriate according to his needs. The present invention is not limited to a specific molding mechanism 25.

In order to further understand the structural features, applied technical means and expected effects of the present invention, the actual implementation process of the present invention is described. It is believed that this will provide a deeper and more specific understanding of the present invention, as described below:

Please refer to FIG. 3, and in conjunction with FIG. 1 and FIG. 2, the method for forming the imitation wood texture according to the present invention is specifically described as follows: first, a crushing step S1 is performed, and the crushing mechanism 21 powderizes the imitation wood plastic scraps and recycled materials 11; then, an adding step S2 is performed, and the adding mechanism 22 adds a plurality of functional additives 12 to the imitation wood plastic scraps and recycled materials 11 in powder form after the crushing step S1; then, a placing step S3 is performed, and the placing mechanism 23 adds the imitation wood plastic scraps and recycled materials 11 after the adding step S2. The polystyrene, the synthetic rubber, the emulsified synthetic rubber, the elastomer of the copolymer of styrene and butadiene, and the functional additives 12 are placed for a preset time to mix and form a recycled raw material 13; then a granulation step S4 is performed, and the recycled raw material 13 mixed with the functional additives 12 is used to produce a granular polymer raw material 14 through a granulation mechanism 24; finally, a molding step S5 is performed, and the polymer raw material 14 melted into a fluid state is used to make a recycled imitation wood product 15 through a molding mechanism 25.

In summary, by utilizing the imitation wood texture forming system 200 provided in this embodiment and in combination with the imitation wood texture forming method described above, the present invention can recycle the imitation wood plastic scraps and recycled materials that originally need to be incinerated in a dedicated incinerator, and manufacture recycled imitation wood finished products 15 with different characteristics according to user needs, which have the effects of being highly environmentally friendly and widely applicable.

Hereinafter, with reference to the drawings, the first embodiment of the method for forming the imitation wood texture of the present invention is described, so that those skilled in the art can more clearly understand the possible variations. The elements indicated by the same element symbols as above are substantially the same as those described in the above reference figure 2. The same elements, features, and advantages in the method for forming the imitation wood texture will not be described again.

Please refer to FIG4, which is a perspective view of the molding mechanism of the first embodiment of the present invention. As shown in FIG4, the molding mechanism 25 of the first embodiment of the present invention may include: a body 251 and a mold 252. Specifically, the molding mechanism 25 of the first embodiment of the present invention may use the rapid cooling and heating molding processing technology, and apply the dynamic mold temperature control to the injection molding process. Before filling, the mold surface temperature is first heated to the glass transition temperature (Tg), and the temperature of the mold 252 is cooled back to the product ejection temperature (Te) during the pressure holding and cooling stage. This technology controls the surface temperature of the mold 252 to dynamically change between the ejection temperature and the transition temperature, and obtains the shortest heating time (Th) and the shortest cooling time (Tc), so as to achieve the purpose of rapid heating before filling and rapid cooling to the mold temperature after filling. More specifically, the molding mechanism 25 of the present embodiment molds the recycled imitation wood product 15 by injection molding at a temperature between 180°C and 260°C. Thus, the present invention successfully applies the fast dynamic mold temperature control technology and controls the temperature between 180°C and 260°C to achieve the technical effects of eliminating weld marks, improving bonding strength, eliminating residual stress, improving microstructure reproducibility, improving floating fiber surface gloss, improving molding surface quality and molding high-gloss products, shortening cooling time, and achieving product quality and efficiency improvement, but the present invention is not limited thereto.

It is understandable that a person having ordinary knowledge in the technical field to which the present invention belongs can make various changes and adjustments based on the above examples, which will not be listed one by one here.

Thus, the present invention has the following practical effects and technical effects:

First, the present invention provides a method for forming a wood-like texture, which is applied to recycled wood-like plastic scraps and reclaimed materials. The texture forming method powderizes the wood-like plastic scraps and reclaimed materials, and adds a plurality of functional additives to the recycled raw materials in powder form to produce recycled wood-like finished products. In this way, the wood-like plastic scraps and reclaimed materials can be effectively remade into various finished products according to user needs, greatly reducing the harm to the environment caused by incineration of waste, and at the same time recycling the waste for reuse.

Secondly, the present invention provides a method for forming a wood-like texture. After using a specific device to powderize wood-like plastic scraps and recycled materials, a functional additive in an appropriate proportion is added to improve the fluidity of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer, so that they can be used in a molding machine to re-make various finished products. At the same time, by adding a functional additive in an appropriate proportion, the above mixture can be effectively prevented from being molded or pressed in the subsequent injection molding. The invention can reduce the expansion of the die head during molding, reduce the interfacial tension between polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer, and enhance the adhesion of the interface to stabilize the mixture when molded into a wood-like shape. Thus, the mechanical properties such as tensile strength, flexural modulus and impact strength of the wood-like finished product of the invention can be significantly improved, thereby producing a low-cost and high-quality wood-like finished product and creating new economic value and benefits.

Thirdly, the present invention provides a method for forming a wood-like texture, wherein the raw materials are wood-like plastic scraps and recycled materials, and the finished wood-like product is composed of polystyrene with different glass transition temperatures, synthetic rubber, emulsified synthetic rubber, and an elastomer of styrene and butadiene copolymer. Since different compositions have different glass transition temperatures, the imitation wood plastic scraps and recycled materials are not completely mixed with the functional additives through the placement step, and in the molding step, under the condition of a temperature between 150°C and 260°C, part of the composition is completely melted but part of the composition is not completely melted, so that the recycled imitation wood product can have a natural texture like real wood. At the same time, the outer surface of the imitation wood product 15 will also produce uneven patterns, so that the outer surface of the imitation wood product 15 has a rough feeling and forms an imitation wood rough surface, achieving the effect of a texture and a rough surface close to that of real wood, greatly increasing the applicability of the present invention.

The above is an explanation of the implementation of the present invention by means of specific embodiments. A person having ordinary knowledge in the relevant technical field can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

In summary, the present invention is extremely advanced and practical in the same category of products. At the same time, after searching the technical data on this type of structure at home and abroad, no similar structure has been found in the literature. Therefore, the present invention has the patent requirements and is filed in accordance with the law.

However, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention; any other equivalent changes or modifications that do not deviate from the spirit disclosed by the present invention should be included in the following patent scope.

11: Wood-like plastic scraps and recycled materials 12: Functional additives 13: Recycled raw materials 14: Polymer raw materials 15: Wood-like finished products 200: Wood-like texture formation system 21: Crushing mechanism 22: Adding mechanism 23: Placing mechanism 24: Granulating mechanism 25: Molding mechanism 251: Main body 252: Mold S1: Crushing step S2: Adding step S3: Placing step S4: Granulating step S5: Molding step

FIG1 is a block diagram of the method for forming the imitation wood texture of the present invention; FIG2 is a schematic diagram of the system for forming the imitation wood texture according to the present invention; FIG3 is a schematic diagram for explaining the actual implementation of the method for forming the imitation wood texture according to the present invention; and FIG4 is a perspective view of the molding mechanism according to the first embodiment of the present invention.

S1: Crushing step

S2: Add steps

S3: Placement step

S4: Granulation step

S5: Molding step

Claims (9)

A method for forming a wood-like texture is applied to recycled wood-like plastic scraps and reclaimed materials, and the method for forming the wood-like texture comprises: a crushing step, which is to powderize the wood-like plastic scraps and reclaimed materials; an adding step, which is to add a plurality of functional additives to the wood-like plastic scraps and reclaimed materials in powder form after the mixing step; a placing step, which is to place the wood-like plastic scraps and reclaimed materials after the adding step and the functional additives for a preset time to mix to form a recycled raw material; a granulation step, which is to input the recycled raw material after mixing the functional additives into a granulation mechanism to produce a plurality of polymer raw materials in granular form; and A molding step is to input the polymer raw materials into a molding mechanism, and the molding mechanism directly produces a recycled imitation wood product through the polymer raw materials that are melted into a flowing state. The method for forming the imitation wood texture as described in claim 1, wherein the imitation wood plastic scraps and recycled materials are a mixture of polystyrene, a synthetic rubber, an emulsified synthetic rubber and an elastomer of styrene and butadiene copolymer. A method for forming a simulated wood texture as described in claim 2, wherein the weight percentage of the polystyrene is between 30%-85%, the weight percentage of the synthetic rubber is between 5%-50%, the weight percentage of the emulsified synthetic rubber is between 3%-45%, and the weight percentage of the elastomer of the copolymer of styrene and butadiene is between 2%-35%. The method for forming the simulated wood texture as described in claim 1, wherein the functional additives include an organic stabilizer, a coupling agent, a thermal stabilizer, a gelling accelerator, a foaming agent and a light absorber. The method for forming the imitation wood texture as described in claim 4, wherein the percentage of the organic stabilizer (Parts per hundred parts of resin, PHR) is between 0.1%-10%, the percentage of the coupling agent is between 0.1%-5%, the percentage of the thermal stabilizer is between 0.1%-3%, the percentage of the gelling accelerator is between 0.1%-10%, the percentage of the foaming agent is between 0.1%-3%, and the percentage of the light absorber is between 0.1%-3%. In the method for forming a simulated wood texture as described in claim 4, the organic stabilizer is selected from one of an antioxidant and a light stabilizer. The method for forming a simulated wood texture as described in claim 4, wherein the functional additives further include a filler and a colorant, and the filler is selected from one or a combination of calcium carbonate and talc. The method for forming the simulated wood texture as described in claim 7, wherein the percentage of the light calcium carbonate is between 3% and 25%, and the percentage of the colorant is between 0.01% and 2.5%. The method for forming the imitation wood texture as described in claim 1, wherein the molding step is performed at a temperature between 150°C and 260°C to mold the recycled imitation wood product by one of extrusion molding and injection molding.

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