TWI825902B - Imitation wood recycling method and system thereof - Google Patents

Abstract

The present invention relates to a method and system for recycling and reproducing imitation wood. The method for recovering and reproducing imitation wood is applied to the recovered wood imitation plastic scraps and recovered materials, and includes a crushing step, a mixing step, an adding step, a granulating step and a molding step. Among them, the pulverizing step is to powder the recovered wood imitation plastic scraps and recovered materials; the mixing step is to fully mix the recovered wood imitation plastic scraps and recovered materials to form recycled raw materials ; the adding step is to add functional additives to the recycled raw materials in powder form after the mixing step; the granulating step is to make the recycled raw materials into granular polymer raw materials after adding the functional additives ; the molding step is to melt these polymer raw materials into a flowing state to make a recycled imitation wood product. The imitation wood recycling system applies the imitation wood recycling method.

Description

Imitation wood recycling method and system

The present invention relates to a method and system for recycling imitation wood, and in particular to a method and system for recycling imitation wood plastic scraps and recycled materials to achieve environmental protection and recycling.

According to reports, among many natural resources, forest resources are actually one of the most important assets in the earth's resources. In addition to nurturing a rich and diverse ecosystem of animals and plants, forest resources also provide various materials needed by humans and are closely related to human life. Therefore, How to improve 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 residual material processing.

In view of this, in recent years, research on the preparation of polymer plastic biocomposites (woodplastic composite, WPC) from wood residues or fragments has attracted more and more attention around the world. The reason is that WPC can effectively utilize wood fiber residues. In addition to the preparation of composite materials, WPC has better dimensional stability and resistance to diseases and pests than real wood. Therefore, it does not require special maintenance and its service life can be as long as 25 to 30 years. At present, the application areas of WPC are mainly materials used in transportation vehicles and non-structural and semi-structural buildings.

Generally speaking, composite materials are made by using two or more raw materials with different properties and combining them with different processing methods to capture the characteristics and advantages of each raw material and exert a synergistic effect. A new material that has excellent performance and meets the needs. Among many composite materials, fiber reinforced composite materials have better performance and are widely used. In recent years, WPC has largely replaced traditional metal, plastic and solid wood materials in use, and is often used in products such as decking, fences, exterior sidings, window frames and roofing 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 difference in surface polarity between colloids often hinders the connection between the two. Chemical bonding.

In addition, in an atmosphere of increasing environmental awareness, the aforementioned WPC composite materials or other plastic composite materials still cannot be widely used or applied to people's daily life needs due to the many structural shortcomings and toxicity problems mentioned above. 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 researched ways to improve the shortcomings, and finally came up with the present invention.

The object of the present invention is to provide a method for recycling imitation wood, which is applied to the recycled wood-imitation plastic scraps and recycled materials. The recycling and reproduction method powderizes the imitation wood plastic scraps and recycled materials, and adds plural Functional additives are added to the recycled raw materials in powder form to produce recycled imitation wood products. In this way, imitation wood plastic scraps and recycled materials can be effectively remade into various finished products according to user needs, greatly reducing the harm caused to the environment by burning waste, and at the same time recycling the waste.

Another object of the present invention is to provide an imitation wood recycling system. After using specific equipment to pulverize imitation wood plastic scraps and recycled materials, an appropriate proportion of functional additives is added to make polystyrene, synthetic rubber, emulsified The flow rate of synthetic rubber and elastomers copolymerized with styrene and butadiene is increased, so that they can be used in molding machines to re-make various finished products. At the same time, by adding appropriate proportions of functional additives, the above mixtures can be effectively prevented from being used in subsequent injection molding. Or die expansion occurs during extrusion molding, and can reduce the interfacial tension between polystyrene, synthetic rubber, the emulsified synthetic rubber, and the elastomer copolymerized with styrene and butadiene, and improve the adhesion of the interface By stabilizing the mixture and molding it into a wood-like form, the mechanical properties such as tensile strength, flexural modulus and impact strength of the wood-like finished product of the present invention can be significantly improved, thereby producing low-cost and stable-quality wood-like imitations. finished products and create new economic value and benefits.

In order to achieve the above objectives and effects, the invention provides a method for recycling imitation wood, which is applied to the recycled imitation wood plastic scraps and recycled materials. The method for recycling imitation wood includes: a crushing step, which is The imitation wood plastic scraps and recycled materials are powdered. The imitation wood plastic scraps and recycled materials are a polystyrene, a synthetic rubber, an emulsified synthetic rubber and an elastomer copolymerized with styrene and butadiene. Mixture; an adding step, which is to add a plurality of functional additives to the imitation wood plastic scraps and recycled materials that are in powder form after the mixing step, wherein the functional additives include an organic stabilizer and a coupling agent , a heat stabilizer, a gelling accelerator, a foaming agent and a light absorber; a mixing step, which is to add the polystyrene, the synthetic rubber, the emulsified synthetic rubber and the styrene after the adding step The elastomer copolymerized with butadiene and the functional additives are stirred and then fully mixed to form a recycled raw material; a granulation step is to input the recycled raw material after fully mixing the functional additives into a granulator In a granulating mechanism, a plurality of granular polymer raw materials are produced; and a molding step is to input the polymer raw materials into a molding mechanism, and the molding mechanism directly passes the polymer raw materials melted into a flowing state. Made into a recycled imitation wood product.

Preferably, according to the imitation wood recycling method 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%, and the emulsified synthetic rubber The weight percentage of the elastomer is between 3% and 45%, and the weight percentage of the elastomer copolymerized with styrene and butadiene is between 2% and 35%.

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

Preferably, according to the imitation wood recycling method of the present invention, the organic stabilizer is selected from one of antioxidants and light stabilizers.

Preferably, according to the imitation wood recycling method of the present invention, the molding step is performed at a temperature between 150°C and 260°C, using one of extrusion molding and injection molding to shape the recycled wood. Imitation wood finished products.

In addition, the present invention is based on the above-mentioned recycling method of imitation wood, and further provides a recycling and recycling system of imitation wood, which is applied to the recycled imitation wood plastic scraps and recycled materials. The recycling and recycling system of imitation wood includes : A crushing mechanism that pulverizes the imitation wood plastic scraps and recycled materials. The imitation wood plastic scraps and recycled materials are polystyrene, synthetic rubber, emulsified synthetic rubber and styrene and butadiene. A mixture of diene copolymerized elastomers; an adding mechanism coupled to the crushing mechanism, the adding mechanism adds a plurality of functional additives to the imitation wood plastic scraps and recycled materials in powder form, wherein, the Functional additives include an organic stabilizer, a coupling agent, a thermal stabilizer, a gelling accelerator, a foaming agent and a light absorber; a mixing mechanism coupled to the adding mechanism, the mixing mechanism The mechanism is used to stir the polystyrene, the synthetic rubber, the emulsified synthetic rubber and the elastomer copolymerized with styrene and butadiene with the functional additives and then thoroughly mix them to form a recycled raw material; a granulating mechanism , which is coupled to the adding mechanism, the granulating mechanism is used to make the recycled raw materials after fully mixing the functional additives into granular plurality of polymer raw materials; and a molding mechanism, which is coupled to The granulating mechanism and the molding mechanism directly produce a recycled imitation wood finished product by melting the polymer raw materials into a fluid state.

Preferably, according to the imitation wood recycling system 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%, and the emulsified synthetic rubber The weight percentage of the elastomer is between 3% and 45%, and the weight percentage of the elastomer copolymerized with styrene and butadiene is between 2% and 35%.

Preferably, according to the recycling system of the present invention, the percentage content of the organic stabilizer is between 0.1% and 10%, the percentage content of the coupling agent is between 0.1% and 5%, and the percentage content of the thermal stabilizer is between 0.1% and 5%. The percentage content of the gelling accelerator is between 0.1% and 3%, the percentage content of the foaming agent is between 0.1% and 3%, and the percentage content of the light absorbing agent is between 0.1% and 3%. The content is between 0.1%-3%.

Preferably, according to the recycling system of the present invention, the organic stabilizer is selected from one of antioxidants and light stabilizers.

Preferably, according to the recycling system of the present invention, the molding mechanism molds the recycled imitation wood by one of extrusion molding and injection molding at a temperature between 150°C and 260°C. Finished product.

In summary, the method for recycling imitation wood provided by the present invention is applied to the recycled imitation wood plastic scraps and recycled materials. The recycling and reproducing method pulverizes the imitation wood plastic scraps and recycled materials, and adds A plurality of functional additives are added to the recycled raw materials in powder form to produce recycled imitation wood products. In this way, imitation wood plastic scraps and recycled materials can be effectively remade into various finished products according to user needs, greatly reducing the harm caused to the environment by burning waste, and at the same time recycling the waste. In addition, the present invention uses specific equipment to powder the imitation wood plastic scraps and recycled materials, and then adds an appropriate proportion of functional additives to make polystyrene, synthetic rubber, emulsified synthetic rubber and the copolymer of styrene and butadiene more elastic. The flow rate of the mixture is increased so that it can be used in molding machines to make various finished products. At the same time, by adding appropriate proportions of functional additives, the above mixture can effectively prevent die expansion during subsequent injection molding or extrusion molding. It can also reduce the interfacial tension between polystyrene, synthetic rubber, emulsified synthetic rubber, and elastomers copolymerized with styrene and butadiene, and improve the adhesion of the interface to stabilize the mixture into a wood-like shape, thereby, It can significantly improve the mechanical properties such as tensile strength, flexural modulus and impact strength of the imitation wood products of the present invention, thereby producing low-cost and stable quality imitation wood products, and creating new economic value and benefits.

In order to enable those familiar with the art to understand the purpose, features and effects of the present invention, the present invention is described in detail below with reference to the following specific embodiments and the accompanying drawings.

Inventive concepts will now be elucidated more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the inventive concepts are shown. The advantages and features of the inventive concept, as well as the methods for achieving them, will be apparent from the following exemplary embodiments, which are explained in more detail with reference to the accompanying drawings. However, it should be noted that the inventive concept is not limited to the following exemplary embodiments, but can be implemented in various forms. Accordingly, the exemplary embodiments are provided solely to disclose the inventive concepts and to enable those skilled in the art to understand the nature of the inventive concepts. In the drawings, exemplary embodiments of the inventive concepts are not limited to the specific examples provided herein and are exaggerated for clarity.

The terminology used herein is for describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present.

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

Furthermore, exemplary embodiments in the detailed description will be illustrated by cross-sectional illustrations that are idealized illustrations of the concepts of the invention. Accordingly, the shape of the example diagrams may be modified based on manufacturing techniques and/or tolerable errors. Accordingly, exemplary embodiments of the inventive concepts are not limited to the specific shapes shown in the exemplary figures, but may include other shapes that may be produced depending on the manufacturing process. The regions illustrated in the drawings are of general nature and are intended to illustrate the specific shapes of components. 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 by these terms. These terms are only used to distinguish between various components. Thus, a first element in some embodiments could be termed a second element in other embodiments without departing from the teachings of the present invention. Exemplary embodiments of aspects of the inventive concepts illustrated and described herein include their complementary counterparts. Throughout this specification, the same reference number or designator indicates the same element.

Furthermore, exemplary embodiments are described herein with reference to cross-sectional and/or plan views, which are idealized illustrations of the exemplary embodiments. Therefore, deviations from the shapes illustrated are expected to occur due, for example, to manufacturing techniques and/or tolerances. Thus, example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. Accordingly, 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 to limit the scope of the exemplary embodiments.

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

In the crushing step S1, the imitation wood plastic scraps and recycled materials 11 are powdered, wherein the imitation wood plastic scraps and recycled materials 11 are polystyrene (Polystyrene), synthetic rubber (Styrene-Butadiene Rubber, SBR), emulsified A mixture of synthetic rubber (emulsion polymerized butadiene styrene rubber, ESBR) and elastomer copolymerized with styrene and butadiene is then added to step S2.

Adding step S2, adding a plurality of functional additives 12 to the powdery imitation wood plastic scraps and recycled materials 11 after the crushing step S1, wherein the functional additives 12 include organic stabilizers, coupling agents, and thermal stabilizers. , gelling accelerator, foaming agent and light absorber, and then perform mixing step S3.

In the mixing step S3, the polystyrene, the synthetic rubber, the emulsified synthetic rubber and the elastomer copolymerized with styrene and butadiene and the functional additives 12 added in step S2 are stirred and then thoroughly mixed to form a recycling process. Raw material 13, then perform granulation step S4.

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

In the molding step S5, the polymer raw material 14 is input into the molding mechanism 25 (as shown in FIG. 2). The molding mechanism 25 directly melts the polymer raw material 14 into a fluid state to form the recycled imitation wood finished product 15.

Specifically, the organic stabilizer according to the present invention can be used to prevent the recycled raw material 13 from deteriorating. In some embodiments, organic stabilizers may be antioxidants, antiozonants, light-protection means, UV stabilizers, UV absorbers, or UV blockers, lubricants, mold-release agents, separating means, chain-lengthening additives, colourants, marking devices (marking means), organic pigments, IR absorbers, NIR absorbers, photochromic agents, mold-release agents, brighteners ( optical brighteners), polytetrafluoroethylene, halogen-free flame retardants, natural layer silicate, synthetic layer silicate, etc. More specifically, in some embodiments, the organic stabilizer according to the present invention can be selected from one of oxidation stabilizers and light stabilizers, wherein the antioxidant can be phenylpropionic acid, 3,5-bis(1, Benzenepropanoic acid,3,5-bis(1,1-dimethyl-ethyl)-4-hydroxy-C7-C9 branched alkyl esters), the light stabilizer can be N-(1-ethyl-2,2,6,6-tetramethyl-4-piperidyl)-2-dodecylsuccinimide (N-(1 -Acetyl-2,2,6,6-tetramethyl-4-piperidinyl)-2-dodecylsuccinimide), however the present invention is not limited thereto.

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 maintain the mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and elastomer copolymerized with styrene and butadiene under high temperature and/or high humidity conditions. The adhesion reliability can be improved over a long period of time. In some embodiments, the coupling agent may include a silane compound, such as γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropylmethyl Diethoxysilane, γ-glycidoxypropyltriethoxysilane, 3-mercaptopropyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, γ-methyl Acryloxypropyltrimethoxysilane, γ-methacryloxypropyltriethoxysilane, γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane, 3- Propyltriethoxysilane isocyanate, γ-propyltrimethoxysilane acetylacetate, propyltriethoxysilane γ-acetylacetate, β-cyanoacetyltrimethoxysilane, β- Cyanoacetyltriethoxysilane, acetyloxyacetyltrimethoxysilane, etc., but the present invention is not limited thereto.

Specifically, the foaming agent according to the present invention is mainly used to enable the recycled imitation wood finished product 15 to have a microbubble structure similar to wood. In some embodiments, the blowing agent according to the present invention can use azomethamide, 4,4'-oxobishenylsulfonyl hydrazine, p-toluenesulfonyl hydrazine and an inorganic blowing agent (sodium bicarbonate), wherein one or a combination thereof. Preferably, the foaming agent can use a foaming agent with a particle size of 2 μm to 25 μm to avoid uneven foaming of the processed product and avoid premature foaming. However, the present invention is not limited thereto.

Specifically, in some embodiments, the gelling accelerator is selected from, but is 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, A group consisting of oxanilide compounds and hindered amine light stabilizers (HALS), but the present invention is not limited thereto.

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

Please refer to Figure 2. Based on the above-mentioned imitation wood recycling method, the present invention further provides an imitation wood recycling system 200, which is applied to the recycled imitation wood plastic scraps and recycled materials 11. The reprocessing system 200 includes a crushing mechanism 21 , an adding mechanism 22 , a mixing mechanism 23 , a granulating mechanism 24 and a molding mechanism 25 .

Specifically, as shown in Figures 2-3, according to the crushing mechanism 21 of the present invention, the imitation wood plastic scraps and recycled materials 11 are powdered to facilitate subsequent operations. The imitation wood plastic scraps and recycled materials 11 It is a mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and elastomers copolymerized with styrene and butadiene. In some embodiments, the weight percentage of polystyrene is between 30% and 85%, the weight percentage of synthetic rubber is between 5% and 50%, the weight percentage of emulsified synthetic rubber is between 3% and 45%, and the styrene and The weight percentage of butadiene copolymerized elastomer ranges from 2% to 35%. However, the present invention is not limited to this. It should be further explained that due to the different proportions of polystyrene, synthetic rubber, emulsified synthetic rubber and elastomer copolymerized with styrene and butadiene in the imitation wood plastic scraps and recycled materials 11 of the present invention, they are made into recycled materials. When the imitation wood product 15 is remanufactured, the imitation wood product 15 will have uneven patterns on the same cross-section, achieving a texture like growth rings, achieving an effect close to the pattern of real wood, and 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 flakes, it will be difficult for users to perform various operations on the imitation wood plastic scraps and recycled materials 11, thereby crushing them through the crushing mechanism. 21 can effectively powder the imitation wood plastic scraps and recycled materials 11, greatly improving the efficiency of the imitation wood recycling system 200 according to the present invention, but the present invention is not limited thereto.

Specifically, as shown in Figures 2-3, according to the adding mechanism 22 of the present invention, it is coupled to the crushing mechanism 21. The adding mechanism 22 adds a plurality of functional additives 12 to the imitation wood plastic feet that are in powder form after mixing. In the raw materials and recycled materials 11, 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 ranges from 0.1% to 10%, the percentage of the coupling agent ranges from 0.1% to 5%, and the percentage of the thermal stabilizer ranges from 0.1% to 10%. The content is between 0.1% and 3%, the gelling accelerator is between 0.1% and 10%, the foaming agent is between 0.1% and 3%, and the light absorbing agent is between 0.1% and 3%. Between 0.1%-3%. In this way, the functional additive 12 of the present invention, combined with the used imitation wood plastic scraps and recycled materials 11, can effectively improve the flow rate of polystyrene, synthetic rubber, emulsified synthetic rubber and elastomers copolymerized with styrene and butadiene. , so that the mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and elastomer copolymerized with styrene and butadiene can be used in subsequent molding machines. In addition, by adding an appropriate proportion of functional additive 12, the mixture can be effectively prevented from die expansion during subsequent injection molding or extrusion molding, and can reduce polystyrene, synthetic rubber, emulsified synthetic rubber and benzene. The interfacial tension between the ethylene and butadiene copolymer elastomers and the improved adhesion of the interface stabilize the mixture into a wood-like shape. This can significantly improve the tensile strength and bending resistance of the wood-like finished product 15 Mechanical properties such as number and impact strength, thereby producing low-cost and stable-quality imitation wood products15.

Specifically, as shown in Figures 2-3, according to the mixing mechanism 23 of the present invention, it is coupled to the adding mechanism 22. The mixing mechanism 23 is used to mix polystyrene, synthetic rubber, the emulsified synthetic rubber and the styrene. The elastomer copolymerized with butadiene and the functional additives 12 are stirred and then thoroughly mixed to form the recycled raw material 13 . The mixing mechanism 23 may be, but is not limited to, one of a high-speed mixer, a solar mixer, a horizontal mixer, and a vertical mixer. Preferably, the mixing mechanism 23 may be a high-speed mixer. More specifically, the method of mixing the base material can be to mix all the raw materials together at one time, or to mix them in stages, and there is no certain limit. Preferably, in some embodiments of the present invention, the organic stabilizer, coupling agent, thermal stabilizer, gelling accelerator, light absorber, imitation wood plastic scraps and recycled materials 11 are mixed together at high speed. Stir for a predetermined time, and then add the foaming agent to continue stirring and mixing. However, the present invention is not limited to this.

Specifically, according to the granulation mechanism 24 of the present invention, it is coupled to the mixing mechanism 23. The granulation mechanism 24 makes the recycled raw material 13 after adding the functional additives 12 into granular plural polymers. Raw materials 14. 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 strand granulator or a die-cut granulator. etc., however, the present invention is not limited thereto.

Specifically, as shown in Figures 2-3, according to the molding mechanism 25 of the present invention, it is coupled to the granulation mechanism 24. The molding mechanism 25 directly melts the polymer raw materials 14 into a fluid state to produce recycled materials. Remade imitation wood finished products15. In some embodiments, the molding mechanism 25 can select 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 an injection molding machine is used, it can be Achieve smaller and fine imitation wood finished products 15. However, due to the limitation of fluidity of the polymer raw material 14 itself, it is difficult to make larger imitation wood finished products 15 by injection molding. In this case, a hot press molding machine can be used. To form a larger imitation wood finished product 15, the user can choose which method is more appropriate according to their needs. The present invention is not limited to a specific molding mechanism 25.

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

Please refer to Figure 3, and as shown in Figures 1 and 2, the method for recycling imitation wood according to the present invention is described in detail as follows: First, the crushing step S1 is performed, and the crushing mechanism 21 powders the imitation wood plastic scraps and recycled materials 11. The imitation wood plastic scraps and recycled materials 11 are a mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and elastomer copolymerized with styrene and butadiene; then the adding step S2 is performed, and the adding mechanism 22 adds a plurality of functional additives 12. Into the powdery wood-like plastic scraps and recycled materials 11 after the crushing step S1, wherein the functional additives 12 include organic stabilizers, coupling agents, thermal stabilizers, gelling accelerators, foaming agents, and Light absorber; then the mixing step S3 is performed, and the mixing mechanism 23 will add the polystyrene, the synthetic rubber, the emulsified synthetic rubber and the styrene-butadiene copolymer elastomer and the functional auxiliaries after step S2. The agent 12 is stirred and fully mixed to form the recycled raw material 13; then the granulation step S4 is performed, and the recycled raw material 13 after the functional additive 12 is fully mixed through the granulating mechanism 24 to produce granular polymer raw material 14; finally, the molding step is performed S5, the polymer raw material 14 melted into a fluid state is made into a recycled imitation wood finished product 15 through the molding mechanism 25.

Based on the above, by using the imitation wood recycling system 200 provided in this embodiment and combining it with the above-mentioned imitation wood recycling method, the present invention can incinerate imitation wood plastic scraps and recycled materials that originally need to be incinerated in a dedicated incinerator. They are recycled and made into recycled imitation wood products 15 with different characteristics according to user needs, which are highly environmentally friendly and widely applicable.

Hereinafter, the first embodiment of the imitation wood recycling method of the present invention will be described with reference to the drawings, so that those with ordinary knowledge in the technical field to which the present invention belongs can more clearly understand the possible changes. Components designated by the same component numbers as above are substantially the same as those described above with reference to FIG. 2 . The same components, features, and advantages of the imitation wood recycling method will not be described again.

Please refer to FIG. 4 , which is a perspective view of the forming mechanism according to the first embodiment of the present invention. As shown in FIG. 4 , 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 can use rapid cooling and rapid heating molding processing technology to apply dynamic mold temperature control to the injection molding process. Before filling, the mold surface temperature is heated to the glass transition temperature (Tg ), during the pressure holding and cooling stages, the temperature of the cooling mold 252 returns to the product ejection temperature (Te). This technology controls the surface temperature of the mold 252 to dynamically change between the ejection temperature and the conversion temperature to obtain the shortest heating time (Th) and the minimum cooling time (Tc) 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 this embodiment molds the recycled imitation wood finished product 15 by injection molding at a temperature between 180°C and 260°C. Through this, the present invention successfully applies rapid dynamic mold temperature control technology and controls the temperature to be within a relatively high range to eliminate weld lines, enhance bonding strength, eliminate residual stress, improve the reproducibility of microstructure, improve the surface gloss of floating fibers, and improve The molding surface quality and molding high-gloss surface products can shorten the cooling time and achieve technical effects such as product quality and efficiency improvement. However, the invention is not limited to this.

It can be understood that those with ordinary knowledge in the technical field to which the present invention belongs can make various changes and adjustments based on the above examples, and they are not listed here one by one.

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

First, the present invention provides a method for recycling imitation wood, which is applied to recycled imitation wood plastic scraps and recycled materials. The recycling and reproducing method pulverizes the imitation wood plastic scraps and recycled materials, and adds plural Functional additives are added to the recycled raw materials in powder form to produce recycled imitation wood products. In this way, imitation wood plastic scraps and recycled materials can be effectively remade into various finished products according to user needs, greatly reducing the harm caused to the environment by burning waste, and at the same time recycling the waste.

Secondly, the present invention provides an imitation wood recycling system. After using specific equipment to pulverize imitation wood plastic scraps and recycled materials, an appropriate proportion of functional additives is added to make polystyrene, synthetic rubber, and emulsified synthetic rubber. The flow rate of the elastomer copolymerized with styrene and butadiene is increased, so that it can be used in molding machines to re-make various finished products. At the same time, by adding appropriate proportions of functional additives, it can effectively prevent the above mixture from being used in subsequent injection molding or pressing. Expansion of the die occurs during molding, and can reduce the interfacial tension between polystyrene, synthetic rubber, emulsified synthetic rubber and elastomers copolymerized with styrene and butadiene, and improve the adhesion of the interface to stabilize the mixture. By forming into a wood-like form, the mechanical properties such as tensile strength, flexural modulus and impact strength of the wood-like finished product of the present invention can be significantly improved, thereby producing a low-cost and stable-quality wood-like finished product, and creating New economic value and benefits.

The above is a description of the implementation of the present invention through specific embodiments. Those with ordinary skill in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

To sum up, the present invention has excellent practicality among similar products. At the same time, after reviewing the technical information on this type of structure at home and abroad, no similar structure has been found to exist in the literature. Therefore, This invention actually meets the requirements for an invention patent, and you need to file an application in accordance with the law.

However, the above descriptions are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention; all other equivalent changes or modifications made without departing from the spirit of the present invention shall be included in the following. within the scope of the patent.

11: Imitation wood plastic scraps and recycled materials

12: Functional additives

13: Recycling raw materials

14:Polymer raw materials

15: Imitation wood finished products

200: Imitation wood recycling system

21: Crushing mechanism

22:Add institution

23:Hybrid Mechanism

24: Granulation mechanism

25: Forming mechanism

251:Ontology

252:Mold

S1: crushing step

S2: Add steps

S3: Mixing step

S4: Granulation step

S5: Forming steps

Figure 1 is a block diagram of the imitation wood recycling method of the present invention; Figure 2 is a schematic diagram of the imitation wood recycling system according to the present invention; Figure 3 is a schematic diagram illustrating the actual implementation of the imitation wood recycling method according to the present invention; and Figure 4 is a perspective view of the forming mechanism according to the first embodiment of the present invention.

S1: crushing step

S2: Add steps

S3: Mixing step

S4: Granulation step

S5: Forming step

Claims (10)

A method for recycling imitation wood, which is applied to recycled imitation wood plastic scraps and recycled materials. The method for recycling imitation wood includes: a crushing step, which is to crush the imitation wood plastic scraps and recycled materials. The recycled material is powdered. The imitation wood plastic scraps and recycled material are a mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and an elastomer copolymerized by styrene and butadiene; an adding step, in which A plurality of functional additives are added to the imitation wood plastic scraps and recycled materials that are in powder form after the mixing step. Among them, the functional additives include an organic stabilizer, a coupling agent, a thermal stabilizer, and a thermal stabilizer. A gelling accelerator, a foaming agent and a light absorber; a mixing step in which the polystyrene, the synthetic rubber and the emulsified synthetic rubber and the functional additives after the adding step are fully stirred. Mixing to form a recycled raw material; a granulation step, which is to input the recycled raw material after fully mixing the functional additives into a granulation mechanism to produce granular plurality of polymer raw materials; and a molding step, The method is to input the polymer raw materials into a molding mechanism, and the molding mechanism directly produces a recycled imitation wood finished product by melting the polymer raw materials into a fluid state. The method for recycling imitation wood as described in claim 1, wherein the weight percentage of the polystyrene is between 30% and 85%, the weight percentage of the synthetic rubber is between 5% and 50%, and the emulsified synthetic rubber is The weight percentage is between 3% and 45%, and the weight percentage of the styrene and butadiene copolymer elastomer is between 2% and 35%. The method for recycling imitation wood as described in claim 1, wherein the percentage content of the organic stabilizer (Parts per hundred parts of resin, PHR) is between 0.1% and 10%, and the percentage content of the coupling agent is between 0.1% and 10%. At 0.1%-5%, the percentage content of the thermal stabilizer is between 0.1%-3%, the percentage content of the gelling accelerator is between 0.1%-10%, and the percentage content of the foaming agent is between 0.1%-3%, the percentage content of the light absorber is between 0.1%-3%. The method for recycling imitation wood as described in claim 1, wherein the organic stabilizer is selected from the group consisting of antioxidants and light stabilizers. The method for recycling imitation wood as described in claim 1, wherein the molding step uses one of extrusion molding and injection molding to shape the recycled imitation wood at a temperature between 150°C and 260°C. Finished product. An imitation wood recycling system is used for recycling imitation wood plastic scraps and recycled materials. The imitation wood recycling system includes: a crushing mechanism that pulverizes the imitation wood plastic scraps and recycled materials. Integrated, the wood-like plastic scraps and recycled materials are a mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and an elastomer copolymerized by styrene and butadiene; an adding mechanism is coupled to The crushing mechanism and the adding mechanism add a plurality of functional additives to the powdered imitation wood plastic scraps and recycled materials, wherein the functional additives include an organic stabilizer, a coupling agent, and a thermal stabilizer. , a gelling accelerator, a foaming agent and a light absorber; a mixing mechanism coupled to the adding mechanism, the mixing mechanism is used to mix the polystyrene, the synthetic rubber, the emulsified synthetic rubber And the elastomer copolymerized with styrene and butadiene is stirred and fully mixed with the functional additives to form a recycled raw material; a granulating mechanism is coupled to the mixing mechanism, and the granulating mechanism is fully mixed The recycled raw materials after the functional additives are made into granular polymer raw materials; and a molding mechanism is coupled to the granulating mechanism, and the molding mechanism directly melts the polymer into a flowing state. A recycled imitation wood product is made from polymer raw materials. The recycling system as described in claim 6, wherein the weight percentage of the polystyrene is between 30% and 85%, the weight percentage of the synthetic rubber is between 5% and 50%, and the weight percentage of the emulsified synthetic rubber is between The weight percentage of the elastomer copolymerized with styrene and butadiene is between 2% and 35%. The recycling system as described in claim 6, wherein the percentage content of the organic stabilizer is between 0.1% and 10%, the percentage content of the coupling agent is between 0.1% and 5%, and the percentage content of the thermal stabilizer is between 0.1% and 5%. The content of the gelling accelerator is between 0.1% and 3%, the gelling accelerator is between 0.1% and 10%, the foaming agent is between 0.1% and 3%, and the light absorbing agent is between 0.1% and 3%. The content is between 0.1%-3%. The recycling system as claimed in claim 6, wherein the organic stabilizer is selected from one of antioxidants and light stabilizers. The recycling system as described in claim 6, wherein the molding mechanism molds the recycled imitation wood finished product by one of extrusion molding and injection molding at a temperature between 150°C and 260°C.

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