TW202413068A - Method and system for forming wood-like nail holding force - Google Patents

Abstract

A molding method with imitation wood nail holding force comprises: pulverizing plastic scraps and recycled materials, wherein the plastic scraps and recycled materials are a mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and an elastomer of styrene and butadiene copolymer; adding functional additives to the crushed recycled materials, wherein the functional additives include organic stabilizers, coupling agents, thermal stabilizers, gelling accelerators, foaming agents, light absorbers, toughening agents and talcum powder; stirring the crushed plastic scraps and recycled materials with the functional additives and fully mixing them to form recycled materials; making the recycled materials after adding the functional additives into granular polymer raw materials; and melting the polymer raw materials into a flowing state to make imitation wood finished products with imitation wood nail holding force.

Description

Method and system for forming wood-like nail holding force

The present invention relates to a molding method and system for imitating wood holding force, and more particularly to a molding method and system for realizing environmental protection and recycling plastic scraps and recycled materials to form imitating wood holding force.

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 extract the characteristics and advantages of each raw material, exert synergistic effects, and make a new material with excellent performance and 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 pavements, fences, exterior wall panels, window frames and roof materials. However, there are still many problems in combining two or more raw materials of different properties with 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. Therefore, how to provide an effective method 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 addition, general WPC composites or other plastic composites have the following problems: first, the outer surface cannot be molded into a wood-like rough surface; second, the rigidity is poor; third, the temperature resistance and hardness are poor; fourth, the color of the outer surface is too different from the color of the outer surface of real wood; fifth, the nail holding force is poor and the nails are easy to loosen.

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 molding method for imitating wood nail holding force, which is applied to recycled plastic scraps and reclaimed materials. The molding method powderizes the plastic scraps and reclaimed materials, and adds multiple functional additives to the recycled raw materials in a crushed state to produce recycled imitation wood finished products. In this way, 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 waste for reuse.

Another object of the present invention is to provide a molding system with imitation wood nail holding force. After using a specific device to powderize plastic scraps and recycled materials, an appropriate proportion of functional additives are added to improve the flow rate of polystyrene, synthetic rubber, emulsified synthetic rubber, and styrene-butadiene copolymer elastomers, so that they can be used in the molding mechanism to re-make various finished products. At the same time, by adding an appropriate proportion of functional additives, the above mixture can be effectively prevented from being molded or molded in the subsequent injection molding or The die head expands during extrusion molding, and the interfacial tension between polystyrene, synthetic rubber, the emulsified synthetic rubber and the elastomer of styrene and butadiene copolymer can be reduced and the adhesion of the interface can be improved to stabilize the mixture to be molded into a wood-like shape. As a result, 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.

In order to achieve the above-mentioned purpose and effect, the present invention provides a molding method for imitating wood gripping force, which is applied to a recycled plastic scrap and recycled material. The molding method for imitating wood gripping force comprises: a crushing step, which is to pulverize the plastic scrap and recycled material, wherein the plastic scrap and recycled material are a mixture of polystyrene, a synthetic rubber, an emulsified synthetic rubber and an elastomer of styrene and butadiene copolymer; an adding step, which is to add a plurality of functional additives to the plastic scrap and recycled material in a pulverized state after the crushing step, wherein the functional additives include an organic stabilizer, a coupling agent, a thermal A stabilizer, a gelling accelerator, a foaming agent, a light absorber, a toughening agent and a talcum powder; a mixing step, in which the plastic scraps and recycled materials in a crushed state after the adding step are fully mixed with the functional additives after stirring to form a recycled raw material; a granulation step, in which the recycled raw materials after being fully mixed with the functional additives are input into a granulation mechanism to produce a plurality of polymer raw materials in a granular state; and a molding step, in which the polymer raw materials are input into a molding mechanism, and the molding mechanism directly uses the polymer raw materials after being melted into a flowing state to produce a wood-like finished product with a wood-like nail holding force.

Preferably, according to the 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%, 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 of the present invention, 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%, the percentage of the light absorber is between 0.1%-3%, the percentage of the toughening agent is between 3%-30%, and the percentage of the talc is between 3%-25%.

Preferably, according to the method of the present invention, the organic stabilizer is selected from one of an antioxidant and a light stabilizer, and the toughening agent is a styrene-butadiene copolymer.

Preferably, according to the method of the present invention, the forming step is carried out at a temperature between 150 ~260 Under the condition of, the imitation wood product with imitation wood holding force is formed by one of extrusion molding and injection molding.

Furthermore, the present invention is based on the above method and further provides a molding system for imitating wood holding force, which is applied to recycled plastic scraps and recycle materials. The molding system for imitating wood holding force includes: a crushing mechanism, which powderizes the plastic scraps and recycle materials, wherein the plastic scraps and recycle materials are a mixture of polystyrene, a synthetic rubber, an emulsified synthetic rubber, and an elastomer of styrene and butadiene copolymer; an adding mechanism, which is coupled to the crushing mechanism, and the adding mechanism adds a plurality of functional additives to the crushed plastic scraps and recycle materials, wherein the functional additives include an organic stabilizer, a coupling agent, , a heat stabilizer, a gelling accelerator, a foaming agent, a light absorber, a toughening agent and a talcum powder; a mixing mechanism, which is coupled to the adding mechanism, and is used to stir the plastic scraps and recycled materials in a crushed state with the functional additives and fully mix them to form a recycled raw material; a granulating mechanism, which is coupled to the adding mechanism, and is used to make the recycled raw materials after fully mixing the functional additives into a plurality of polymer raw materials in a granular state; and a molding mechanism, which is coupled to the granulating mechanism, and the molding mechanism directly uses the polymer raw materials that are melted into a flowing state to make a wood-like finished product with a wood-like nail holding force.

Preferably, according to the system of the present invention, 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%.

Preferably, according to the system of the present invention, 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%, the percentage of the light absorber is between 0.1%-3%, the percentage of the toughening agent is between 3%-30%, and the percentage of the talc is between 3%-25%.

Preferably, according to the system of the present invention, the organic stabilizer is selected from one of an antioxidant and a light stabilizer, and the toughening agent is a styrene-butadiene copolymer.

Preferably, according to the system of the present invention, the molding mechanism is operated at a temperature between 150 ~260 Under the condition of, the imitation wood product with imitation wood holding force is formed by one of extrusion molding and injection molding.

In summary, the molding method of the wood-like nail grip provided by the present invention is applied to recycled plastic scraps and reclaimed materials. The molding method powderizes the plastic scraps and reclaimed materials, and adds multiple functional additives to the recycled raw materials in a crushed state to produce recycled imitation wood products. In this way, 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 waste for reuse. In addition, the present invention uses a specific device to pulverize 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, and the elastomer of styrene and butadiene copolymer, so that they can be used in the molding mechanism 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 having a die head during subsequent injection molding or extrusion molding. The invention can reduce the expansion of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer, and improve the adhesion of the interface to stabilize the mixture when it is molded into a wood-like shape. In this way, 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 low-cost and stable-quality wood-like finished products and creating new economic value and benefits.

Since the proportions of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer in the plastic scraps and recycled materials of the present invention are different, when the imitation wood finished product is made, the imitation wood finished product will have uneven patterns on the same cross section, achieving a texture like tree rings. At the same time, the outer surface of the imitation wood finished product will also produce uneven patterns, making the outer surface of the imitation wood finished product 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.

Furthermore, polystyrene can give the finished wood imitation products the same rigidity as real wood.

In addition, the toughening agent can improve the toughness of the imitation wood product, so that the imitation wood product has a good nail holding force and the nails are not easy to loosen from the imitation wood product.

In addition, talcum powder can increase rigidity and improve the dimensional stability and temperature resistance of imitation wood products.

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, which 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 flow chart of the molding method of the imitation wood gripping force of the present invention; Figure 2 is a schematic diagram of the molding system of the imitation wood gripping force according to the present invention; Figure 3 is a schematic diagram of the actual implementation of the molding method of the imitation wood gripping force according to the present invention. As shown in Figures 1-3, the molding method of the imitation wood gripping force provided by the present invention is applied to recycled plastic scraps and recycled materials 11, and the molding method of the imitation wood gripping force includes the following steps:

In the crushing step S1, the plastic scraps and recycled materials 11 are powdered, wherein the plastic scraps and recycled materials 11 are a mixture of polystyrene (PS), synthetic rubber (Styrene-Butadiene Rubber, SBR), emulsion polymerized butadiene styrene rubber (ESBR) and an elastomer copolymerized with styrene and butadiene, and then the adding step S2 is performed.

In the adding step S2, a plurality of functional additives 12 are added to the plastic scraps and recycled materials 11 in a crushed state after the crushing step S1, wherein the functional additives 12 include organic stabilizers, coupling agents, thermal stabilizers, gelling accelerators, foaming agents, light absorbers, light calcium carbonate, colorants, toughening agents and talcum powder, and then a mixing step S3 is performed.

In the mixing step S3, the plastic scraps and recycled materials 11 (i.e., the mixture of the polystyrene, the synthetic rubber, the emulsified synthetic rubber and the elastomer copolymerized with styrene and butadiene) in a crushed state after adding the step S2 are stirred and fully mixed with the functional additives 12 to form a recycled raw material 13, and then the granulation step S4 is performed.

In the granulation step S4, the recycled raw material 13 after being fully mixed 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 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 uses the polymer raw material 14 that has been melted into a flowing state to form a wood-like finished product 15 having a wood-like nail holding force.

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, an optical brightener, or a light-sensitive color change agent. 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 phenylpropanoic acid, 3,5-bis(1,1-dimethyl-ethyl)-4-hydroxy-C7-C9 branched alkyl esters (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 (N-(1-Acetyl-2,2,6,6-tetramethyl-4-piperidinyl)-2-dodecylsuccinimide), but 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 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 - Glyceryloxypropyl triethoxysilane, - Glyceryloxypropyl trimethoxysilane, - Glyceryloxypropylmethyldiethoxysilane, - Glyceryloxypropyl triethoxysilane, 3-butylpropyl trimethoxysilane, vinyl trimethoxysilane, vinyl triethoxysilane, -Methacryloyloxypropyltrimethoxysilane, -Methacryloyloxypropyltriethoxysilane, -Aminopropyltrimethoxysilane, -Aminopropyltriethoxysilane, 3-isocyanatepropyltriethoxysilane, -Propyl trimethoxysilane acetoacetate, -Propyl triethoxysilane acetoacetate, -Cyanoacetyltrimethoxysilane, -cyanoacetyltriethoxysilane and acetoxyacetyltrimethoxysilane, but the present invention is not limited thereto.

Specifically, the foaming agent according to the present invention is mainly used to make the 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'-oxybisbenzenesulfonylhydrazine, p-toluenesulfonylhydrazine and 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.

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.

Specifically, in some embodiments, the toughening agent is a styrene-butadiene copolymer, and the styrene-butadiene copolymer includes a K resin or a styrene-butadiene-styrene block copolymer (SBS), but the present invention is not limited thereto.

Thus, according to the molding method of the wood-like holding force of the present invention, a plurality of functional additives 12 are added to the recycled raw materials 13 in a crushed state after the crushing step S1 through the adding step (S2), so that the plastic scraps and recycled materials 11 (i.e., a mixture of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer) can have sufficient ductility, and the crushed recycled raw materials 13 are made into granular polymer raw materials 14 through the granulation step (S4), and finally the polymer raw materials 14 are made into a wood-like finished product 15 with wood-like holding force through the molding step (S5), thereby achieving a significant reduction in the harm to the environment caused by the incineration of waste, and at the same time recycling the waste for reuse.

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

Specifically, as shown in FIG. 2-3, according to the pulverizing mechanism 21 of the present invention, the plastic scraps and recycled materials 11 are powdered to facilitate subsequent operations. The 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 plastic scraps and recycled materials 11 of the present invention are different, when the imitation wood finished product 15 is made, the imitation wood finished product 15 will have uneven patterns on the same cross-section, achieving a texture like tree rings. At the same time, the outer surface of the imitation wood finished product 15 will also produce uneven patterns, making the outer surface of the imitation wood 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.

Furthermore, polystyrene can make the imitation wood finished product 15 have the same rigidity as real wood. Preferably, the polystyrene includes general polystyrene and impact-resistant polystyrene, and the impact resistance of impact-resistant polystyrene is better than that of general polystyrene. Therefore, impact-resistant polystyrene can further improve the impact resistance of the imitation wood finished product 15.

In addition, light calcium carbonate can increase the temperature resistance and hardness of the overall material of the imitation wood finished product 15.

Furthermore, the colorant can make the outer surface of the imitation wood product 15 have a color similar to that of real wood.

In addition, the toughening agent can improve the toughness of the imitation wood product 15, so that the imitation wood product 15 has a good nail holding force, and the nails are not easy to loosen from the imitation wood product 15.

In addition, talcum powder can increase rigidity and improve the dimensional stability and temperature resistance of imitation wood products.

It is worth mentioning that since the 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 plastic scraps and recycled materials 11. Therefore, the plastic scraps and recycled materials 11 can be effectively powdered through the crushing mechanism 21, which greatly improves the efficiency of the imitation wood nail holding force molding system 200 according to the present invention. However, 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 pulverizing mechanism 21, and the adding mechanism 22 adds a plurality of functional additives 12 to the plastic scraps and recycled materials 11 which are pulverized after mixing, wherein the functional additives 12 include organic stabilizers, coupling agents, thermal stabilizers, gelling accelerators, foaming agents, light absorbers, light calcium carbonate, colorants, toughening agents and talcum powder. 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%, the percentage of the light absorber is between 0.1%-3%, the percentage of the light calcium carbonate is between 3%-25%, the percentage of the colorant is between 0.01%-2.5%, the percentage of the toughening agent is between 3%-10%, and the percentage of the talc is between 3%-25%. Thus, the functional additive 12 of the present invention is combined with the 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 used in subsequent molding machines. 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, emulsified synthetic rubber, and styrene-butadiene copolymer elastomer can be reduced and the adhesion of the interface can be improved to stabilize the mixture when it is molded into 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.

Specifically, as shown in FIG. 2-3, the mixing mechanism 23 of the present invention is coupled to the adding mechanism 22, and the mixing mechanism 23 is used to mix the plastic scraps and recycled materials 11 in a crushed state with the functional additives 12 and then fully mix them to form recycled raw materials 13. The mixing mechanism 23 can 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 can be a high-speed mixer. More specifically, the method of mixing the base material can be to mix all the raw materials at the same time at one time, or to mix them in stages, and there is no certain limitation. Preferably, in some embodiments of the present invention, the organic stabilizer, coupling agent, thermal stabilizer, gelling accelerator, light absorber, light calcium carbonate, colorant, toughening agent, talcum powder, plastic scraps and recycled material 11 are first mixed together, stirred at high speed for a predetermined time, and then the foaming agent is added to continue stirring and mixing, but the present invention is not limited thereto.

Specifically, the granulation mechanism 24 of the present invention is coupled to the adding mechanism 22, 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, etc., 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 uses the polymer raw materials 14 melted into a flowing state to form a wood-like finished product 15 with a wood-like nail holding force. 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 wood-like finished product 15 can be achieved. However, due to the limitation of the fluidity of the polymer raw material 14 itself, it is difficult to use the injection molding method to make a larger wood-like finished product 15. In this case, a hot press molding machine can be used to make a larger wood-like finished 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 molding method of imitating wood gripping force according to the present invention is specifically described as follows: first, a crushing step S1 is performed, and the crushing mechanism 21 powderizes the plastic scraps and recycled materials 11, and the plastic scraps and recycled materials 11 are a mixture of polystyrene, synthetic rubber, emulsified synthetic rubber, and styrene-butadiene copolymerized elastomer; then an adding step S2 is performed, and the adding mechanism 22 adds a plurality of functional additives 12 to the plastic scraps and recycled materials 11 in a crushed state after the crushing step S1, wherein the functional additives 12 include organic stabilizers, coupling agents, thermal stabilizers, gelling accelerators, foaming agents, , light absorber, light calcium carbonate, colorant, toughening agent and talcum powder; then perform a mixing step S3, the mixing mechanism 23 will add the polystyrene, the synthetic rubber, the emulsified synthetic rubber and the elastomer of styrene and butadiene copolymer after step S2 and the functional additives 12 and fully mix them to form a recycled raw material 13; then perform a granulation step S4, the recycled raw material 13 after fully mixing the functional additives 12 is produced into a granular polymer raw material 14 through the granulation mechanism 24; finally perform a molding step S5, the polymer raw material 14 melted into a flowing state is made into a wood-like finished product 15 with wood-like nail holding force through the molding mechanism 25.

In summary, by utilizing the imitation wood gripping force molding system 200 provided in this embodiment and in combination with the above-mentioned imitation wood gripping force molding method, the present invention can recycle plastic scraps and recycled materials that originally need to be incinerated in a dedicated incinerator, and manufacture imitation wood finished products 15 with imitation wood gripping force of 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 gripping force 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 above with reference to FIG. 2. The same elements, features, and advantages in the method for forming the imitation wood gripping force will not be described in detail.

Please refer to FIG4, which is a cross-sectional 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 stages. 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 this embodiment is at a temperature between 180 ~260 Under the condition of , a wood-like finished product 15 with wood-like nail holding force is formed by injection molding. Thus, the present invention successfully applies the fast dynamic mold temperature control technology and controls the temperature between the temperature and the temperature to achieve the technical effects of eliminating weld marks, improving bonding strength, eliminating residual stress, improving the reproducibility of microstructures, improving the surface gloss of floating fibers, improving the surface quality of molding and molding high-gloss products, shortening the 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 molding method for imitating wood holding force, which is applied to recycled plastic scraps and reclaimed materials. The molding method powderizes the plastic scraps and reclaimed materials, and adds multiple functional additives to the recycled raw materials in a pulverized state to produce imitating wood finished products with imitating wood holding force. In this way, 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 waste for reuse.

Secondly, the present invention provides a molding system with imitation wood nail holding force. After using a specific device to powderize plastic scraps and recycled materials, an appropriate proportion of functional additives are added to improve the flow rate of polystyrene, synthetic rubber, emulsified synthetic rubber and styrene-butadiene copolymer elastomer, so that they can be used in the molding mechanism to re-make various finished products. At the same time, by adding an appropriate proportion of functional additives, the above mixture can be effectively prevented from being molded during subsequent injection molding or extrusion 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 improve the adhesion of the interface to stabilize the mixture when it is molded into a wood-like shape. In this way, 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 low-cost and stable-quality wood-like finished products and creating new economic value and benefits.

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: Plastic scraps and recycled materials 12: Functional additives 13: Recycled raw materials 14: Polymer raw materials 15: Imitation wood finished products 200: Imitation wood grip molding system 21: Crushing mechanism 22: Adding mechanism 23: Mixing mechanism 24: Granulating mechanism 25: Molding mechanism 251: Main body 252: Mold S1: Crushing step S2: Adding step S3: Mixing step S4: Granulating step S5: Molding step

FIG1 is a flow chart of the molding method of the imitation wood gripping force of the present invention; FIG2 is a schematic diagram of the molding system of the imitation wood gripping force according to the present invention; FIG3 is a schematic diagram illustrating the actual implementation of the molding method of the imitation wood gripping force according to the present invention; and FIG4 is a cross-sectional view of the molding mechanism according to the first embodiment of the present invention.

S1: Crushing step

S2: Add steps

S3: Mixing step

S4: Granulation step

S5: Molding step

Claims (10)

A molding method for imitating wood gripping force is applied to recycled plastic scraps and reclaimed materials. The molding method for imitating wood gripping force comprises: A crushing step, which is to powderize the plastic scraps and reclaimed materials. The plastic scraps and reclaimed materials are a mixture of polystyrene, a synthetic rubber, an emulsified synthetic rubber, and an elastomer of styrene and butadiene copolymer; An adding step, which is to add a plurality of functional additives to the plastic scraps and recycled materials in a crushed state after the crushing step, wherein the functional additives include an organic stabilizer, a coupling agent, a thermal stabilizer, a gelling accelerator, a foaming agent, a light absorber, a toughening agent and a talcum powder; A mixing step, which is to stir and fully mix the plastic scraps and recycled materials in a crushed state after the adding step with the functional additives 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 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 uses the polymer raw materials after melting into a flowing state to make a wood-like finished product with wood-like nail holding force. The method as described in claim 1, 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 as described in claim 1, wherein 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%, the percentage of the light absorber is between 0.1%-3%, the percentage of the toughening agent is between 3%-30%, and the percentage of the talc is between 3%-25%. The method as described in claim 1, wherein the organic stabilizer is selected from one of an antioxidant and a light stabilizer, and the toughening agent is a styrene-butadiene copolymer. The method of claim 1, wherein the forming step is performed at a temperature between 150 ~260 Under the condition of, the imitation wood product with imitation wood holding force is formed by one of extrusion molding and injection molding. A molding system with imitation wood gripping force is applied to recycled plastic scraps and recyclable materials. The molding system with imitation wood gripping force includes: A crushing mechanism, which powderizes the plastic scraps and recyclable materials. The plastic scraps and recyclable materials are a mixture of polystyrene, a synthetic rubber, an emulsified synthetic rubber, and an elastomer copolymerized with styrene and butadiene; An adding mechanism, which is coupled to the pulverizing mechanism, and the adding mechanism adds a plurality of functional additives to the pulverized plastic scraps and recycled materials, wherein the functional additives include an organic stabilizer, a coupling agent, a thermal stabilizer, a gelling accelerator, a foaming agent, a light absorber, a toughening agent and a talcum powder; A mixing mechanism, which is coupled to the adding mechanism, and the mixing mechanism is used to stir the pulverized plastic scraps and recycled materials with the functional additives and fully mix them to form a recycled raw material; A granulating mechanism, which is coupled to the adding mechanism, and the granulating mechanism is used to make the recycled raw materials after fully mixing the functional additives into a plurality of polymer raw materials in granular form; and A molding mechanism is coupled to the granulation mechanism, and the molding mechanism directly uses the polymer raw materials that have been melted into a flowing state to produce a wood-like finished product with wood-like nail holding force. A system as described in claim 6, 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 styrene-butadiene copolymer elastomer is between 2%-35%. A system as described in claim 6, wherein 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%, the percentage of the light absorber is between 0.1%-3%, the percentage of the toughening agent is between 3%-10%, and the percentage of the talc is between 3%-25%. The system as described in claim 6, wherein the organic stabilizer is selected from one of an antioxidant and a light stabilizer, and the toughening agent is a styrene-butadiene copolymer. The system of claim 6, wherein the molding mechanism is at a temperature between 150 ~260 Under the condition of, the imitation wood product with imitation wood holding force is formed by one of extrusion molding and injection molding.

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