TW202206514A - Recycling and reusing phenolic type waste and manufacturing method of environmentally friendly light bakelite phenolic material The recycled materials in this case can be continuously remanufactured and recycled, which effectively reduces the environmental load and increases the lifespan of incinerators and landfills - Google Patents

Abstract

A method for recycling and reusing phenolic type wastes and environment-friendly light bakelite phenolic materials. The phenolic type waste, wood fiber and porous materials are moderately crushed and ground to a specific particle size, and then uniformly mixed with a specific powder mixing ratio. And add a specific proportion of resin, and then continue to use the traditional plastic material process to make the finished product of environmentally friendly bakelite phenolic material. This case can make up the situation that traditionally only waste bakelite waste or waste fiber is used as the main structure, resulting in uneven distribution of structure, insufficient strength, and excessive density and weight. Among them, the porous material can reduce the overall material density, so the weight is lighter, and it has fireproof and waterproof functions. This case can be used in decoration and construction boards, furniture boards, or for external wall insulation, or in boards used in the printed circuit board industry, copper foil substrate industry processes, or in the general use of bakelite. And as a new type of environmentally friendly bakelite or environmentally friendly wood. The recycled materials in this case can be continuously remanufactured and recycled, which effectively reduces the environmental load and increases the lifespan of incinerators and landfills.

Description

Recycling and reusing phenolic type waste and manufacturing method of environmentally friendly light bakelite phenolic material

The invention relates to the recycling of phenolic type waste, especially a method for recycling and reusing phenolic type waste and environment-friendly light bakelite phenolic material. It can effectively reuse phenolic type waste, and at the same time reuse other types of fiber waste and porous materials (such as discarded activated carbon or foamed lightweight materials) to achieve the goal of recycling.

From an environmental engineering perspective, waste is a misplaced resource. It is very difficult to recycle and reuse resources in a proper way to make usable and usable products. Especially thermosetting plastic products. There are almost only two final disposal methods, landfill and incineration. There are countless manufacturers who hope that they can recycle phenolic boards (commonly known as bakelite boards) after they are used while selling phenolic boards. Since phenolic bakelite is a thermosetting engineering plastic. Its characteristics are high incineration temperature, and its high calorific value can easily cause damage to the incinerator body, exceeding the designed calorific value of the incinerator. This reduces the willingness of removal operators to collect such waste into most incinerators for final treatment.

Phenolic board (commonly known as bakelite), the raw materials are phenols and aldehydes, which are made of phenolic resin after polymerization reaction. Using paper or cloth as the carrier, it is impregnated with phenolic resin, dried, and hot-pressed. of thermosetting plastics. Phenolic materials (phenolic board or bakelite board) are widely used in the printed circuit board industry. As a drilling and molding process, the upper and lower pads are used as protective plates when protecting products. backing plate The type of bakelite used in the way of use is actually still in line with the original material characteristics after mechanical drilling, but the geometric three-dimensional shape is changed after the printed circuit board manufacturing process such as drilling and molding, and the material itself has not changed. Phenolic materials (phenolic board or bakelite) are also widely used in insulation, heat insulation and other industries.

Generally, the used bakelite waste (or phenolic resin type waste) in the form of drilling, molding, or powder, edge material, etc., is used directly because the original geometric shape that can be used has been destroyed. There is little benefit in achieving reuse. In order to effectively increase the availability of the final stage, the bakelite powder formed by the above-mentioned bakelite waste such as pulverization, grinding and other processes, the formed bakelite powder, because the original resin occupies most of the fiber holes in the microscopic view, resulting in the subsequent direct addition of resin. , whether it is pressed or not, its bonding is very weak. It is easy to form giant cracks and cracks under slight force or even during the gluing process, which directly limits the way the ends can be reused.

Since the above-mentioned products are easy to form obvious product defects such as cracks, holes, or insufficient strength when they are reshaped, and the reduction of carbon dioxide capture due to deforestation based on the needs of the global wood industry, the present invention hopes to propose a waste The way of recycling phenolic type waste (bakelite waste) can recycle the phenolic engineering plastic waste after recycling, especially the waste phenolic board after drilling, such as bakelite board, bakelite strip, bakelite generated when drilling At the same time, it is used in combination with other waste fiber boards after drilling to form a new type of material through a new and easy-to-use recycling method, which can obtain a variety of benefits, which is different from traditional incineration and burial. Environmental engineering final treatment method. In order to widely increase the characteristics of waste fiber recycling, and achieve the goal of circular economy and the concept of environmental sustainability.

Therefore, the purpose of the present invention is to solve the above-mentioned problems in the prior art. Aldehyde type waste (i.e. bakelite waste), wood fiber material (preferably waste fiber) and porous material (such as waste activated carbon or foamed lightweight material) are properly crushed and ground to specific particles After the size, the specific powder mixing ratio is used to mix evenly, supplemented by the addition of resin, and the specific resin mixing ratio is supplemented. When the waste bakelite waste is used as the main raw material for the new product, it is easy to cause uneven distribution after adding new resin. A variety of defects caused by uniformity, weak structure, and high density and heavy weight. Among them, the porous material can reduce the overall material density, so the weight is lighter, and it has fireproof and waterproof functions. It can also avoid the situation that the product strength is insufficient when only waste fibers are used as the main structure. Continue to use the traditional plastic material process to make the final environmentally friendly bakelite phenolic material product.

In this case, the aforementioned phenolic wastes (or bakelite wastes), wood fiber materials and porous materials (such as discarded activated carbon or foamed lightweight materials) can also be appropriately crushed and ground to a specific particle size Afterwards, in a specific mixing ratio, acid or alkali can be added to further destroy the phenolic type waste (or bakelite waste). After the original phenolic type waste is eroded, the number of holes increases and the effect of defibrating is obtained. The above-mentioned fibrous materials and porous materials can be additionally added to improve the cracks caused by the problems of poor resin bonding and non-uniformity. And after mixing evenly, add new resin in a specific resin mixing ratio, and continue to use the traditional plastic material manufacturing process to make the finished product of environmentally friendly bakelite phenolic material.

The specific resin mixing ratio refers to phenolic type waste (or bakelite waste) powder, wood fiber material (preferably waste fiber) powder and porous material powder, the sum of the weight of the three powders, and the weight of the newly added resin The weight ratio can be in the range of 0.01 to 0.99, but is not entirely limited to this range.

Wherein, the addition of the resin can be fireproof resin, waterproof resin, and light weight. the resin Resin types such as phenolic resin, urea formaldehyde resin, epoxy resin, acrylic resin, etc. can also be used. It can also be a bridging agent. It is not limited to the foregoing resin or bridging agent types or mixtures thereof. Can be solid resin or liquid resin. The aforementioned resin is preferably phenolic resin.

The traditional manufacturing method of plastic materials includes mixing the mixed sieved powder after grinding and mixing with solid resin, or soaking the mixed sieved powder after grinding with liquid resin, phase separation, and drying, which can be supplemented by a mold. However, it is not limited to batch hot pressing or cold pressing, or continuous hot pressing or cold pressing. In the case of hot pressing or cold pressing, the pressure can be in the range of 0.001kg/cm ² to 300kg/cm ² . Either through the injection machine to eject the material, or through the extruder to extrude the material. Or foamed as a foaming material. It can be but not limited to the aforementioned plastic production process.

The finished product of environmentally friendly bakelite phenolic material includes, but is not limited to, the drilling bottom plate, the upper cover plate, the desktop plate, the cutting plate used in the process of the printed circuit board industry and the copper foil substrate industry, or includes But it is not limited to being applied to the general use of bakelite, such as as a fixture, jig, heat insulating material, and insulating material, and is applied to a new type of environmentally friendly bakelite or environmentally friendly wood. It can also include but is not limited to being used as decorative and construction boards, such as plywood, plywood, wood core board, particle board, melamine board, fiberboard, foam board, floor, etc.; or for furniture; or for furniture For external wall insulation and other purposes, it is regarded as a new type of phenolic bakelite material or a recycled wood or material. Or through the general plastic production process such as mold, jig, injection, extrusion, etc., the recycled material after molding. In addition, the characteristic of this recycled material is that it can be repeatedly reproduced and recycled through the above-mentioned process. This effectively reduces the environmental load and increases the life of incinerators and landfills.

In order to achieve the above purpose, the present invention proposes a method for reclaiming and reusing phenolic type wastes and environmentally friendly light bakelite phenolic materials, comprising the following steps: Step A: crushing and pulverizing the waste phenolic polymeric materials to form powder; Step B: The wood fiber is formed by crushing and powdering Powder; Step C: take the porous material, crush and pulverize the porous material to form a powder; Step D: then the powder of the waste phenolic polymer material, the powder of the wood fiber and the porous material Mixing the powders, when the total weight of the three components is 1, the weight ratio of each component is in the range of 0.01 to 0.99; Step E: Then add resin, the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the The powder of the porous material and the resin are uniformly mixed, wherein the resin is mainly used for bonding the powder of the waste phenolic polymer material, the powder of the wood fiber and the powder of the porous material; wherein the weight ratio of the resin is greater than or equal to Total 0.01; Step F: Apply one of hot pressing, cold pressing, injection machine injection, extruder extrusion, or foaming to the obtained mixture to form the desired solid material.

This case also proposes an environmentally friendly light-weight bakelite phenolic structure, which is a flat plate structure with a specific geometric shape, wherein the environmentally friendly bakelite phenolic structure is a flat plate with a thickness, which has a fixed geometric shape, and the shape is selected from the group consisting of Rectangle, square, circle, rhombus, triangle and other polygons of different shapes; the environmentally friendly bakelite phenolic structure is a flat plate structure formed by mixing waste phenolic polymer materials, wood fibers, porous materials and resins; The total weight of the components is 1, then the weight ratio of the waste phenolic polymer material, the wood fiber and the porous material is in the range of 0.01 to 0.99; and the waste phenolic polymer material, the wood fiber and the porous material The total weight ratio of the resin is not greater than 0.99; wherein the weight ratio of the resin is greater than or equal to 0.01.

The features and advantages of the present invention can be further understood from the following description, which is read with reference to the accompanying drawings.

1: Flat structure

FIG. 1 shows a flow chart of the steps of the manufacturing method of the present application.

FIG. 2 shows a schematic diagram of the plate structure of the present case.

FIG. 3 shows a schematic diagram of another type of the flat plate structure of the present application.

FIG. 4 shows a schematic diagram of another type of the flat plate structure of the present application.

FIG. 5 shows a schematic diagram of another type of the flat plate structure of the present application.

With regard to the structure and composition of the present case, as well as the functions and advantages that can be produced, in conjunction with the drawings, a preferred embodiment of the present case is described in detail as follows.

Please refer to FIG. 1, which shows the method for reclaiming and reusing phenolic type waste and environmentally friendly light bakelite phenolic material of the present invention, comprising the following steps:

Step 100: Crushing and pulverizing the waste phenolic polymer material to form a powder. The particle size of the powder of the waste phenolic polymeric material can be 1 to 200 mesh through sieving, and preferably the particle size of the waste phenolic polymeric material is the fine powder particle that can pass through a sieve of 200 mesh or more. However, the present case does not limit the particle size of the waste phenolic polymer material powder to a specific range, and the particle size of the waste phenolic polymer material powder can also be a combination of specific ratios of the above-mentioned ranges.

Among them, the waste phenolic polymer material is bakelite waste, which can be obtained from the phenolic upper cover, lower backing board, desktop board used in the mechanical drilling process of the printed circuit board manufacturing industry, or used in the cutting process of the copper foil substrate industry The cutting protection pad. However, the waste phenolic polymeric material is not limited to the above-mentioned phenolic type waste sources. It is mainly used as the recycling of phenolic polymer materials after industrial treatment.

Step 110: Crushing and powdering the wood fiber (ie, the waste wood pulp board material after the drilling process of the printed circuit board) to form a powder. The particle size of the wood fiber powder can be 1 to 200 meshes through sieving, and preferably the particle size of the wood fiber powder is fine powder particles that can sifted through 200 mesh or more. However, this case does not limit the particle size of the wood fiber powder to Within a certain range, the particle size of the wood fiber powder can also be a combination of the specific ratios of the above-mentioned ranges.

The wood fiber can be a backing board, a waste wood pulp board, an environmentally friendly board, or other types of fiber boards used in the mechanical drilling process of the printed circuit board manufacturing industry. The wood fiber can also be used in the decoration industry, construction industry, wood industry, and furniture industry, such as waste plywood, plywood, wood core board, particle board, melamine board, fiberboard and other boards, but not limited to It is a waste source, and can also be a fresh fiber source, such as wood flour, wood chips, or agricultural waste, such as rice straw and bagasse. However, it is not limited to all the aforementioned wood fiber sources. A more suitable source of wood fiber is waste wood pulp board or green board after mechanical drilling process, or fresh wood powder.

Step 120: Take a porous material, such as waste activated carbon, or a foamed lightweight material (such as a foamed phenolic board); crush and pulverize the porous material to form a powder . The particle size of the powder of the porous material can be 1 to 200 mesh through sieving, and preferably the particle size of the porous material powder is fine powder particles that can pass through 200 mesh or more. However, this case does not limit the particle size of the powder of the porous material to a specific range.

Step 130: Then the powder of the waste phenolic polymer material, the powder of the wood fiber and the powder of the porous material are mixed. The sum of the weights of the three is 1, the weight ratio of the waste phenolic polymer material to the mixture is in the range of 0.01 to 0.99; the weight ratio of the wood fiber powder to the mixture is in the range of 0.01 to 0.99. But not entirely limited to this range. For example, the three can be uniformly mixed by a homogenizer in an equal amount.

Step 140: Then add an appropriate amount of resin, and use a homogenizer to uniformly mix the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the porous material and the resin. Wherein the resin is mainly used for bonding the powder of the waste phenolic polymer material, the powder of the wood fiber, and powder of the porous material. When the proportion of this resin is higher, the degree of adhesion is better, but the cost is higher, and the recovery rate of waste utilization is lower. In this case, the resin is preferably fireproof resin, waterproof resin, and light in weight.

The resin can be solid or liquid, preferably solid. The resin may be a resin type such as phenolic resin, urea formaldehyde resin, epoxy resin, acrylic resin, or a mixture thereof. Among them, the resin is preferably phenolic resin.

Wherein, after the resin is added in step 140, a bridging agent may be further added to form a three-dimensional structure.

Step 150: Applying one of the methods of hot pressing, cold pressing, injection by injection machine, extrusion by extruder, or foaming of the obtained mixture to form the desired solid material. However, the above-mentioned production process for forming the solid material from the mixture is not intended to limit the scope of this case.

Typically the density of the waste phenolic polymeric material is about 1.4 and the density of the wood fibers is about 0.6 to 0.8. Therefore, if only waste phenolic polymer materials and wood fibers are used for synthesis, the density will be too large, so the overall weight will be heavier, which is not suitable for industrial applications. The density of the porous material (eg, discarded activated carbon or foamed lightweight material) is between 0.1 and 0.6. Therefore, further adding porous material in this case can reduce the density of the whole material, so it can achieve many applications.

The solid material can be, for example, a flat plate material, which has a fixed geometric shape, such as rectangles, squares, circles, diamonds, triangles and other polygons of various shapes.

For example, the mixed mixture is placed in a mold, and after applying pressure with an appropriate pressure, hot-pressed at an appropriate temperature for a period of time to cure it until the surface hardness (Shore D hardness) distribution is in the range of 60 to 95. the solid material. Generally, the pressure is in the range of 0.001kg/cm ² to 300kg/cm ² , and the temperature can be higher than room temperature. The longer the hot pressing time, the harder the solid material obtained.

In step 100, the waste phenolic polymer material can be immersed in an acidic or alkaline solution after being crushed and powdered, so that the surface of the waste phenolic polymer material is eroded, or cracked into finer powder, which is mainly The purpose is to increase the setting force in combination with the resin in subsequent steps. Wherein the acidic or alkaline solution includes but is not limited to aqueous solutions such as strong acid, strong base, weak acid, weak base, etc. It can be but not limited to hydrochloric acid, sulfuric acid, hydrofluoric acid, nitric acid, aqua regia, aqueous sodium hydroxide, potassium hydroxide Acid-base aqueous solution such as aqueous solution, calcium hydroxide aqueous solution, magnesium hydroxide aqueous solution, etc. The weight concentration of the acidic or alkaline solution is in the concentration range of 0.1% to 99% aqueous solution.

For example, the powder of the waste phenolic polymer material is soaked in an appropriate amount of strong alkali sodium hydroxide solution (concentration is 10%, w/w), and the strong alkali sodium hydroxide solution floods the powder surface of the waste phenolic polymer material, so that the Perform surface damage. After 2 days, the strong alkali sodium hydroxide solution was leaked out, and the waste phenolic polymer material powder was washed with water to a pH in the range of 7-9, and then dried at a temperature of 100°C.

Therefore, this case is a flat plate structure 1 with a specific geometric shape, mainly using waste phenolic polymer materials, wood fibers, porous materials (such as waste activated carbon or foamed lightweight materials) and resins through mixing The completed flat structure 1. Wherein, if the total weight of the above four components is 1, the weight ratio of the waste phenolic polymer material, the wood fiber and the porous material is in the range of 0.01 to 0.99, and the waste phenolic polymer material, the wood fiber and the The total weight ratio of the porous material is not greater than 0.99; and the weight ratio of the resin is greater than or equal to 0.01. The flat structure 1 may also contain a bridging agent. The composition of each material is as described above. The plate structure 1 has a fixed geometric shape, such as rectangle or square (as shown in FIG. 2 ), circle (as shown in FIG. 3 ), diamond (as shown in FIG. 4 ), triangle (as shown in FIG. 5 ) polygons of various shapes.

In the first embodiment of this application example, in the above step 140, the powder of the waste phenolic polymer material (ie, bakelite waste), the powder of the wood fiber, the powder of the porous material and the resin (such as phenolic resin) ) in a weight ratio of 1:1:1:1, and in the above step 150, a hot-pressing method is applied to form the solid material, wherein the hot-pressing pressure is 40kgf/cm ² , the hot-pressing temperature is 150° C., and the hot-pressing time is for 1 hour. Therefore, the solid material with a specific thickness can be obtained as an environmentally friendly bakelite phenolic material. The distribution range of the surface hardness (Shore D hardness) of the solid material can be between 60 and 92. The solid material can be made into a flat plate with a thickness of 2.5 mm, which has a fixed geometric shape, such as rectangles, squares, circles, diamonds, triangles and other polygons of various shapes. The solid material can be used as a drilling board in the printed circuit board industry, as a low-grade environmentally friendly drilling board, or as a cutting protection board for the copper foil substrate industry.

In the second embodiment of this application example, in the above step 140, the powder of the waste phenolic polymer material (ie the bakelite waste), the powder of the wood fiber, the powder of the porous material and the resin (such as phenolic resin) ) mixing conditions are the same as in the first embodiment above (ie, the weight ratio of mixing is 1:1:1:1), and hot pressing is also used to form the solid material in the above step 150 . However, the hot pressing pressure was 50 kgf/cm ² , the hot pressing temperature was 150° C., and the hot pressing time was 1 hour. Therefore, a solid material with a specific thickness can be obtained as an environmentally friendly bakelite phenolic material. The distribution range of the surface hardness (Shore D hardness) of the solid material can be between 70 and 90. The solid material can be made into a flat plate with a thickness of 1.5 mm, which has a fixed geometric shape, such as rectangles, squares, circles, diamonds, triangles and other polygons of different shapes. The solid material can be used as a drilling board in the printed circuit board industry, as a mid-level environmentally friendly drilling board, or as a cutting protection board for the copper foil substrate industry.

In the third embodiment of this application example, in the above step 140, the powder of the waste phenolic polymer material (ie, bakelite waste), the powder of the wood fiber, the powder of the porous material and the resin (such as phenolic resin) ) mixing conditions are the same as the above-mentioned first embodiment (ie, the weight ratio of mixing is 1:1:1:1). In the above step 150, the obtained mixture is placed in a mold, and the solid material is formed by hot pressing, wherein when the mixed mixture is placed in the mold, the bottom surface and the surface of the mold are respectively placed with containing Adhesive paper (or commonly known as facial paper film). The hot pressing pressure is 60kgf/cm ² , the hot pressing temperature is 150° C., and the hot pressing time is 1 hour. Therefore, a solid material with a specific thickness can be obtained as an environmentally friendly bakelite phenolic material. The distribution range of the surface hardness (Shore D hardness) of the solid material can be between 85 and 95. The solid material can be made into a flat plate with a thickness of 1.5 mm, which has a fixed geometric shape, such as rectangles, squares, circles, diamonds, triangles and other polygons of different shapes. The solid material can be used as a drilling board in the printed circuit board industry, and can be regarded as a high-end environmentally friendly drilling board.

In the fourth embodiment of this application example, in the above step 140, the powder of the waste phenolic polymer material (ie, bakelite waste), the powder of the wood fiber, the powder of the porous material and the resin (such as phenolic resin) ) mixing conditions are the same as the above third embodiment (ie, the mixing weight ratio is 1:1:1:1), and in the above step 150, a hot pressing method is applied to form the solid material. The hot pressing pressure is 60kgf/cm ² , the hot pressing temperature is 150° C., and the hot pressing time is 1 hour. Therefore, a solid material with a specific thickness can be obtained as an environmentally friendly bakelite phenolic material. The surface hardness (Shore D) of the solid material can be distributed in the range of 85 to 95. The solid material can be made into a flat plate with a thickness of 3 mm, which has a fixed geometric shape, such as rectangles, squares, circles, diamonds, triangles and other polygons of different shapes. The solid material can be used as a bakelite board used in general industries, and can be used in jigs and fixtures.

In the fifth embodiment of this application example, in the above-mentioned step 140, the powder of the waste phenolic polymer material (that is, the bakelite waste), the powder of the wood fiber, and the porous material in the above-mentioned first embodiment are mixed The weight ratio of the powder and the resin (such as phenolic resin) is changed to 1:3:10:2. The particle size distribution of the powder of the waste phenolic polymer material, the powder of the wood fiber and the powder of the porous material in the above-mentioned first embodiment is not changed, but the powder of the waste phenolic polymer material, the powder of the wood fiber and the powder of the porous material are changed. The dosage ratio of the powder of the porous material. The powder of the waste phenolic polymer material (ie, bakelite waste), the powder of the wood fiber, the powder of the porous material and the resin (eg, phenolic resin) are uniformly mixed with a homogenizer. In the above-mentioned step 150, the obtained mixture is placed in a mold, and a hot pressing method is applied to form the solid material. The hot pressing pressure is 30kgf/cm ² , the hot pressing temperature is 150° C., and the hot pressing time is 1 hour. Therefore, a solid material with a specific thickness can be obtained as an environmentally friendly bakelite phenolic material. The distribution range of the surface hardness (Shore D hardness) of the solid material can be between 60 and 70. The solid material can be made into a flat plate with a thickness of 3 mm, which has a fixed geometric shape, such as rectangles, squares, circles, diamonds, triangles and other polygons of different shapes. The solid material can be used as a fiberboard for decorative materials.

In the sixth embodiment of this application example, in the above step 140, the powder of the waste phenolic polymer material (ie, bakelite waste), the powder of the wood fiber, the powder of the porous material and the resin (such as phenolic resin) ) mixing conditions are the same as the above-mentioned fourth embodiment (ie, the weight ratio of mixing is 1:1:1:1). In the above step 150, the obtained mixture is placed in a mold, and the solid material is formed by hot pressing, wherein when the mixed mixture is placed in the mold, the bottom surface and the surface of the mold are respectively placed with containing Adhesive paper (or commonly known as facial paper film). The hot pressing pressure is 60kgf/cm ² , the hot pressing temperature is 150° C., and the hot pressing time is 1 hour. Therefore, a solid material with a specific thickness can be obtained as an environmentally friendly bakelite phenolic material. The surface hardness (Shore D hardness) of the solid material can be distributed in the range of 70 to 92. The solid material can be made into a flat plate with a thickness of 3 mm, which has a fixed geometric shape, such as rectangles, squares, circles, diamonds, triangles and other polygons of different shapes. The solid material can be used as a decorative board containing cosmetic surface and interior decoration materials.

The method of applying mold hot pressing in the above-mentioned processes can also be changed to the process of plastic extrusion to extrude waste phenolic polymer materials. A board-shaped floor type product is available.

The advantage of this case is that phenolic type waste (that is, bakelite waste), wood fiber material (waste fiber is preferred) and porous material (such as waste activated carbon or foamed lightweight material), all three are After being properly crushed and ground to a specific particle size, it is mixed evenly with a specific powder mixing ratio, and supplemented by the addition of resin. With a specific resin mixing ratio, it can supplement the traditional use of waste bakelite waste as the main raw material for new products. When the new resin is added, it is easy to produce various defects caused by uneven distribution, weak structure, and high density and heavy weight. It can also avoid the situation of insufficient product strength when traditionally only using waste fibers as the main structure. Among them, the porous material can reduce the overall material density, so the weight is lighter, and it has fireproof and waterproof functions. In addition, this case continues the process of traditional plastic materials to make the final product of environmentally friendly bakelite phenolic material, which can be used in the drilling bottom plate, upper cover plate, table top used in the process of printed circuit board industry and copper foil substrate industry. Board, cutting backing board, or including but not limited to being applied in the general use of bakelite, such as as a fixture, fixture, heat insulation material, insulating material, and is applied to a new type of environmentally friendly bakelite or environmentally friendly wood. It can also include but is not limited to being used as decorative and construction boards, such as plywood, plywood, wood core board, particle board, melamine board, fiberboard, foam board, floor, etc.; or for furniture; or for furniture For external wall insulation and other purposes, it is regarded as a new type of phenolic bakelite material or a recycled wood or material. Or through the general plastic production processes such as molds, jigs, injection, extrusion, etc., the recycled materials after molding. In addition, the characteristic of this recycled material is that it can be repeatedly reproduced and recycled through the above-mentioned process. This effectively reduces the environmental load and increases the life of incinerators and landfills.

To sum up, the humanized and considerate design of this case is quite in line with the actual needs. its specific improvements Compared with the prior art, the existing deficiencies obviously have the advantages of breakthrough progress, and indeed have the improvement of efficacy, and it is not easy to achieve. This case has not been disclosed or disclosed in the domestic and foreign literature and markets, and has complied with the provisions of the Patent Law.

The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the technical spirit of the present invention shall be included in the within the scope of the patent in this case.

Claims (17)

A manufacturing method for recycling and reusing phenolic type waste and environment-friendly light bakelite phenolic material, comprising the following steps: Step A: the waste phenolic polymer material is crushed and pulverized to form a powder; Step B: the wood fiber is crushed and pulverized to form a powder; Step C: taking the porous material, crushing and pulverizing the porous material to form a powder; Step D: then mix the powder of the waste phenolic polymer material, the powder of the wood fiber and the powder of the porous material, when the total weight of the three is 1, the weight ratio of each component is in the range of 0.01 to 0.99 ; Step E: Then add resin, and uniformly mix the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the porous material and the resin, wherein the resin is mainly used for bonding the powder of the waste phenolic polymer material , the powder of the wood fiber and the powder of the porous material; wherein the weight ratio of the resin is greater than or equal to 0.01 of the total; Step F: applying one of the methods of hot pressing, cold pressing, injection by injection machine, extrusion by extruder, or foaming of the obtained mixture to form the desired solid material. The method of claim 1, wherein in step A, after the waste phenolic polymer material is crushed and powdered, it is then immersed in an acidic or alkaline solution, so that the surface of the waste phenolic polymer material is subjected to eroded, or disintegrated into finer powders. The method as described in item 1 or 2 of the claimed scope, wherein in step F, the mixed mixture is placed in a mold, and after applying pressure with an appropriate pressure, hot-pressed at an appropriate temperature for a period of time to cure it to a The surface hardness (Shore D hardness) distribution range is between 60 and 95, and the solid material is formed; wherein the pressure is in the range of 0.001kg/cm ² to 300kg/cm ² , and the temperature is greater than room temperature; wherein when the hot pressing time The longer it is, the harder the resulting solid material is. The method described in item 2 of the claimed scope, wherein the acidic or basic solution is selected from hydrochloric acid, sulfuric acid, hydrofluoric acid, nitric acid, aqua regia, aqueous sodium hydroxide, aqueous potassium hydroxide, aqueous calcium hydroxide, hydrogen Acid-base aqueous solution such as magnesium oxide aqueous solution. The method according to claim 1 or 2, wherein after adding the resin in step E, a bridging agent is added to form a three-dimensional structure. The method of claim 1 or 2, wherein the waste phenolic polymer material is selected from the group consisting of bakelite waste, phenolic upper cover plate, bottom backing plate, table top plate used in the mechanical drilling process of the printed circuit board manufacturing industry, Or the cutting protection pad used by the copper foil substrate industry in the cutting process. The method of claim 1 or 2, wherein the wood fiber is selected from backing boards, waste wood pulp boards, green boards, or decorative or furniture boards used in mechanical drilling processes in the printed circuit board manufacturing industry , or fresh fiber sources, wood flour, wood chips, or agricultural waste; when the wood fiber is agricultural waste, it is selected from rice straw and bagasse. The method of claim 1 or 2, wherein the porous material is selected from waste activated carbon or foamed lightweight materials. The method of claim 1 or 2, wherein the resin is selected from fire-resistant resin, waterproof resin, phenolic resin, urea-formaldehyde resin, epoxy resin, acrylic resin, or a mixture of the aforementioned resins. The method of claim 1 or 2, wherein in step E, the weight ratio of the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the porous material and the resin is 1 : 1: 1: 1; wherein in step F, the obtained mixture is applied hot pressing to form the solid material; wherein the hot pressing pressure is 40kgf/cm ² , the hot pressing temperature is 150° C., and the hot pressing time is 1 hour; the The solid material is used as an environmentally friendly bakelite phenolic material; wherein the surface hardness (Shore D hardness) of the solid material is distributed in the range of 60 to 92; the solid material is used as a drilling board in the printed circuit board industry, and is regarded as a low-order Environmentally friendly drilling board, or cutting protection board for copper foil substrate industry cutting. The method of claim 1 or 2, wherein in step E, the weight ratio of the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the porous material and the resin is 1 : 1: 1: 1; wherein in step F, the obtained mixture is applied hot pressing to form the solid material; wherein the hot pressing pressure is 50kgf/cm ² , the hot pressing temperature is 150° C., and the hot pressing time is 1 hour; the The solid material is an environmentally friendly bakelite phenolic material; the surface hardness (Shore D hardness) of the solid material is distributed in the range of 70 to 90; the solid material is used as a drilling board in the printed circuit board industry, and is regarded as a medium It is an environmentally friendly drilling board, or a cutting protection board for the copper foil substrate industry. The method of claim 1 or 2, wherein in step E, the weight ratio of the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the porous material and the resin is 1 : 1: 1: 1; wherein in step F, the obtained mixture is placed in a mold, and a hot pressing method is used to form the solid material, wherein when the mixed mixture is placed in the mold, the bottom surface of the mold and the surface are respectively placed with glue-containing surface paper; wherein the hot-pressing pressure is 60kgf/cm ² , the hot-pressing temperature is 150° C., and the hot-pressing time is 1 hour; the solid material is an environmentally friendly bakelite phenolic material; wherein the surface of the solid material is The hardness (Shore D) is distributed in the range of 85 to 95; this solid material is used as a drilling board in the printed circuit board industry, and is regarded as a high-grade environmentally friendly drilling board. The method of claim 1 or 2, wherein in step E, the weight ratio of the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the porous material and the resin is 1 : 1:1:1; wherein in step F, the obtained mixture is applied hot pressing to form the solid material; wherein the hot pressing pressure is 60kgf/cm ² , the hot pressing temperature is 150°C, and the hot pressing time is 1 hour; The solid material is an environmentally friendly bakelite phenolic material; the surface hardness (Shore D hardness) of the solid material is distributed in the range of 85 to 95; the solid material is used as a bakelite board, applied to jigs and fixtures. The method of claim 1 or 2, wherein in step E, the weight ratio of the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the porous material and the resin is 1 : 3: 10: 2; wherein in step F, the mixed mixture is laid in the mold, and the solid material is formed by applying hot pressing; wherein the hot pressing pressure is 30kgf/cm ² , the hot pressing temperature is 150° C. The pressing time is 1 hour; the solid material is an environmentally friendly bakelite phenolic material; the surface hardness (Shore D hardness) of the solid material is distributed in the range of 60 to 70; the solid material is used as a fiberboard for decoration materials . The method of claim 1 or 2, wherein in step E, the weight ratio of the powder of the waste phenolic polymer material, the powder of the wood fiber, the powder of the porous material and the resin is 1 : 1: 1: 1; wherein in step F, the mixed mixture is laid in the mold, and the solid material is formed by hot pressing; wherein when the mixed mixture is laid in the mold, the bottom surface of the mold and the surface are respectively placed with glue-containing surface paper; wherein the hot-pressing pressure is 60kgf/cm ² , the hot-pressing temperature is 150° C., and the hot-pressing time is 1 hour; the solid material is an environmentally friendly bakelite phenolic material; wherein the surface of the solid material is The hardness (Shore D) is distributed in the range of 70 to 92; the solid material is used as a decorative board containing cosmetic surface and interior decoration materials. An environmentally friendly light-weight bakelite phenolic structure is a flat plate structure with a specific geometric shape, wherein the environmentally friendly bakelite phenolic structure is a flat plate with a thickness, which has a fixed geometric shape, The shape is selected from polygons of various shapes such as rectangle, square, circle, rhombus, triangle, etc. The environmentally friendly bakelite phenolic structure is a flat plate structure formed by mixing waste phenolic polymer materials, wood fibers, porous materials and resins ; Set the weight sum of the above four components as 1, then the weight ratio of the waste phenolic polymer material, the wood fiber and the porous material is in the range of 0.01 to 0.99; and the waste phenolic polymer material, the wood fiber And the total weight ratio of the porous material is not greater than 0.99; wherein the weight ratio of the resin is greater than or equal to 0.01. The environment-friendly light-weight bakelite phenolic structure as described in item 15 of the patent application scope, wherein the plate structure still includes a bridging agent.

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