Preparation method and production device of agilawood three-dimensional network structure body

Abstract

The invention belongs to the technical field of agilawood processing, and particularly relates to a preparation method and a production device of an agilawood three-dimensional network structure body. The preparation method of the agilawood three-dimensional network structure body comprises the following steps: extracting agilawood essential oil and preparing master batches; performing extrusion molding to prepare an initial product of the agilawood three-dimensional network structure body; and carrying out post-treatment steps such as cooling, cutting and curing on an extruded initial product to obtain a final agilawood three-dimensional network structure body product. Through the optimized preparation process, the effective components in the agilawood are reserved and released to the greatest extent, so that the product can remarkably play the roles of soothing the nerves and relieving anxiety in practical application.

Description

Technical Field

[0001] The present invention belongs to the technical field of agarwood processing, and in particular relates to a preparation method and a production device for a three-dimensional network structure of agarwood, aiming to give full play to the calming and anxiety-relieving effects of agarwood. Background Art

[0002] The Compendium of Materia Medica records that agarwood can cure wind and water poison swelling, heart and stomach pain, treat cholera, clear the mind, nourish the five internal organs, warm the waist and knees, nourish the spleen and stomach, treat cold arthritis, invigorate the spirit, invigorate the essence, help the yang channel, treat stranguria, clear acne, and relieve plague. As a precious natural spice and medicinal material, agarwood has extremely high economic and medicinal value, and its effect of calming the mind and relieving anxiety is particularly significant.

[0003] However, in the prior art, the preparation methods of agarwood products often fail to fully release and utilize the unique effect of agarwood, and are unable to fully exert the calming and anxiety-relieving effects of agarwood, resulting in unsatisfactory results of existing products in practical applications. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a preparation method and production device of a three-dimensional network structure of agarwood to solve the problems existing in the prior art. The three-dimensional network structure of agarwood produced by this process can maximize the calming and anxiety-relieving effects of agarwood.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A method for preparing a three-dimensional network structure of agarwood, comprising the following steps:

[0007] (1) Extraction of agarwood essential oil and preparation of masterbatch

[0008] Select high-quality agarwood raw materials and use steam distillation to extract agarwood essential oil;

[0009] The extracted agarwood essential oil is mixed with polyethylene (PE) in a certain proportion;

[0010] The masterbatch is prepared by microporous foaming method, as follows:

[0011] Put the following raw materials in proportions: 10-30 parts of agarwood essential oil, 50-70 parts of polyethylene, 3-10 parts of foaming agent, 1-5 parts of nucleating agent, and 1-5 parts of compatibilizer into a high-speed mixer and mix thoroughly to make the components evenly distributed;

[0012] The mixture is placed in a special foaming equipment, and a foaming agent such as supercritical carbon dioxide or nitrogen is injected. Under certain temperature and pressure conditions, the foaming agent forms a large number of tiny bubbles in the polymer, thereby obtaining a microporous foamed masterbatch, which can effectively prolong the durability of the agarwood smell, thereby achieving the effect of calming the mind and relieving anxiety for a long time.

[0013] (2) Extrusion molding

[0014] The prepared agarwood essential oil masterbatch and PE masterbatch are mixed evenly and added to the feeding system of the extruder. The heating system of the extruder is pre-set with multiple heating sections, and the temperature of each section is accurately set according to the characteristics and process requirements of the masterbatch. Usually, the temperature of the heating section close to the feed port is as low as 50-60℃, and gradually rises to 190-220℃ towards the extrusion end to ensure that the masterbatch can be gradually heated and melted to achieve good fluidity.

[0015] During the extrusion process, the twin screws rotate at a set speed. The rotation of the screws produces shearing, extrusion and mixing effects on the masterbatch, making it fully plasticized and homogenized. At the same time, the special structural design of the screws helps to form a good material flow channel and promote uniform extrusion of the material.

[0016] The feed rate is precisely controlled by a metering device to match the screw speed and heating temperature of the extruder to ensure the stability and continuity of the extrusion process. At the outlet of the extruder, a mold of a specific shape and size is installed. The plasticized material is extruded through the mold to form a primary product of a three-dimensional network structure of agarwood with a predetermined shape and size.

[0017] During the entire extrusion process, the extruder parameters such as temperature, pressure, speed and extrusion flow are closely monitored and adjusted in real time through the control system to ensure the stability of process conditions and consistency of product quality.

[0018] (3) Post-processing

[0019] The initial product after extrusion undergoes post-processing steps such as cooling, cutting and curing to obtain the final agarwood three-dimensional network structure product.

[0020] The agarwood three-dimensional network structure can be cut to obtain products such as mattresses, seat cushions, pillows, pet mats, etc.

[0021] The invention also discloses a production device for a three-dimensional network structure of agarwood, which mainly comprises an extruder, a feeding system, a heating and cooling system and a control system.

[0022] The extruder adopts a twin-screw extruder with a screw diameter of 270mm and an aspect ratio of 30: 1. The unique structural design of the screw can effectively mix, plasticize and extrude the materials.

[0023] The feeding system includes a hopper and a metering device, which can accurately control the feeding amount and ensure a uniform supply of materials.

[0024] The heating and cooling system consists of multiple heating sections and cooling sections, which can accurately control the temperature of the extruder barrel according to process requirements.

[0025] The control system adopts advanced PLC control technology, which can realize real-time monitoring and control of the extruder's speed, temperature, pressure and other parameters.

[0026] Beneficial Effects

[0027] The present invention discloses a preparation method and a production device of a three-dimensional network structure of agarwood. Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Effectively exert the calming and anxiety-relieving effects of agarwood: Through optimized preparation technology, the effective ingredients in agarwood are retained and released to the greatest extent, so that the product can significantly exert the calming and anxiety-relieving effects in actual applications.

[0029] 2. The three-dimensional network structure determines that the structure has good air permeability, and the thermoplastic elastomer does not absorb water, so the products made are not easy to hide dirt and are easy to clean, which brings great convenience in daily life.

[0030] 3. High production efficiency: The extruder is used for continuous extrusion molding, which greatly improves the production efficiency.

[0031] 4. Good product quality: Through precise temperature control and screw design, the structural uniformity and performance stability of the product can be guaranteed.

[0032] 5. Simple process: The preparation process is easy to operate and control, which reduces production costs.

[0033] 6. Strong scalability: The specifications and performance of the product can be adjusted according to market demand, and it has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 : Structural representation diagram of the three-dimensional network structure of agarwood according to the present invention;

[0035] Figure 2 : Structural representation diagram of the three-dimensional network structure of agarwood according to the present invention;

[0036] Figure 3 : A schematic structural diagram of a device for producing the three-dimensional network structure of agarwood according to the present invention;

[0037] Figure 4 : Schematic diagram of the spinneret mold structure of the production device of the three-dimensional network structure of agarwood according to the present invention;

[0038] Figure 5 : Schematic diagram of the spinneret mold structure of a three-dimensional mesh pillow production device according to Example 4 of the present invention;

[0039] In the figure, 1: feed control device; 2: heating and cooling system; 3: control system; 4: spinneret die. DETAILED DESCRIPTION

[0040] Hereinafter, the present invention will be described in detail. Before describing, it should be understood that the terms used in this specification and the appended claims should not be interpreted as being limited to the general meaning and dictionary meaning, but should be interpreted according to the meaning and concept corresponding to the technical aspects of the present invention on the basis of the principle that the inventor is allowed to appropriately define the terms for the best interpretation. Therefore, the descriptions presented here are only preferred examples for illustrative purposes and are not intended to limit the scope of the present invention, so that it should be understood that other equivalents or improvements can be obtained therefrom without departing from the spirit and scope of the present invention.

[0041] The following examples are only listed as examples of embodiments of the present invention and do not constitute any limitation to the present invention. It can be understood by those skilled in the art that modifications within the scope of the essence and concept of the present invention fall within the scope of protection of the present invention. Unless otherwise specified, the reagents and instruments used in the following examples are all commercially available products.

[0042] Example 1

[0043] A method for preparing a three-dimensional network structure of agarwood, comprising the following steps:

[0044] (1) Extraction of agarwood essential oil

[0045] The water vapor method is used to extract agarwood essential oil. The detailed steps are as follows:

[0046] 1). Prepare materials: Agarwood raw materials: Choose Hainan insect-leaking agarwood, which has good quality and high oil content.

[0047] Distilled water: used to generate water vapor.

[0048] Distillation equipment: including still, condenser, oil-water separator, etc.

[0049] 2). Crushing agarwood: crush the agarwood raw materials into small pieces or powder to increase the surface area and improve the distillation efficiency.

[0050] 3). Distillation: Put the crushed agarwood into the distillation kettle and add appropriate amount of distilled water to make the agarwood completely immersed in the water.

[0051] The distillation kettle is heated to 120°C and 0.2MPa to boil the water and generate steam. The steam passes through the agarwood and carries the volatile components upward.

[0052] 4). Condensation: The rising water vapor is introduced into the condenser to cool it and condense it into liquid.

[0053] 5). Oil-water separation: The condensed liquid is introduced into the oil-water separator. Due to the different densities of oil and water, the agarwood essential oil will float on the water surface, while the water will sink to the bottom.

[0054] 6). Collect essential oil: Collect the agarwood essential oil floating on the water surface to obtain the initially extracted agarwood essential oil.

[0055] 7). Refining: In order to improve the purity and quality of agarwood essential oil, further refining treatments such as filtration, bleaching and deodorization are carried out.

[0056] The essential oil prepared in this way is added to the three-dimensional network structure, which has a stronger flavor and better durability. It can more effectively play the role of calming the mind and relieving anxiety.

[0057] (2) Preparation of agarwood masterbatch

[0058] The masterbatch was made from agarwood after essential oil extraction, 60 parts of polyethylene (PE) was used as the carrier, 20 parts of essential oil was prepared, 5 parts of carbon dioxide was used as the foaming agent, 3 parts of talcum powder was used as the nucleating agent, and 2 parts of ethylene-vinyl acetate copolymer (EVA) was used as the compatibility agent to enhance the compatibility of the essential oil and the polymer.

[0059] Premixing: Put the polymer carrier, essential oil, foaming agent, nucleating agent and compatibilizer into a high-speed mixer in a certain proportion and mix them thoroughly for about 20-30 minutes to make the components evenly distributed.

[0060] Extrusion granulation: The premixed materials are put into a twin-screw extruder. The temperature of each zone of the extruder is set according to the characteristics of the selected polymer, and 190°C is selected. During the extrusion process, the foaming agent decomposes under high temperature and high pressure (temperature 130-200°C, pressure 10mpa-30mpa) to produce gas, forming a microporous structure, and the essential oil is evenly dispersed in the polymer. The extruded material is extruded into strips through the die head and then cut into particles by an underwater pelletizer. The pelletized masterbatch is quickly cooled by water cooling to prevent the collapse of the microporous structure. Use a drying device at 60°C to remove moisture from the masterbatch. The masterbatch obtained in this way releases the aroma through a slow-release effect, which can maximize the durability of the fragrance of the three-dimensional network structure.

[0061] (3) Preparation of three-dimensional network structures

[0062] 1). Put the agarwood essential oil masterbatch and thermoplastic elastomer PE into a blender and mix them thoroughly (the amount of agarwood essential oil masterbatch added is 1%).

[0063] 2). The mixture is melted by physical heating, and the material is transported forward in the barrel under the rotation of the extruder screw. The extruder screw speed is 30rpm, the heating section temperature is 175℃ for zone 1, 190℃ for zone 2, 200℃ for zone 3, 210℃ for zone 4, and 215℃ for zone 5. The feed rate is 20kg / h, which can better mix the agarwood masterbatch and thermoplastic elastomer. With the increase of temperature and the action of the screw, the mixture forms a melt with a certain fluidity and is sent to a specific mold to extrude filaments.

[0064] 3). The filaments in the adjacent wire holes are bent and entangled and fall into the cooling water tank. The temperature of the cooling section is 50°C. A three-dimensional network is formed, and after cooling and solidification, it becomes a three-dimensional network body. The structure is pulled into the cooling water tank by the conveying roller in the cold water tank, and then pulled out of the water by the traction roller after cooling.

[0065] 4). Put it into the air drying box through the conveyor belt and dry it with hot air at a drying temperature of 45℃.

[0066] The obtained three-dimensional network structure of agarwood was characterized by human sleep detection and animal experiments, and its effect of calming the mind and relieving anxiety was significant.

[0067] Example 2

[0068] A method for preparing a three-dimensional network structure of agarwood, comprising the following steps:

[0069] (1) Extraction of agarwood essential oil

[0070] The water vapor method is used to extract agarwood essential oil. The detailed steps are as follows:

[0071] 1). Prepare materials: Agarwood raw materials: Choose Hainan insect-leaking agarwood, which has good quality and high oil content.

[0072] Distilled water: used to generate water vapor.

[0073] Distillation equipment: including still, condenser, oil-water separator, etc.

[0074] 2). Crushing agarwood: crush the agarwood raw materials into small pieces or powder to increase the surface area and improve the distillation efficiency.

[0075] 3). Distillation: Put the crushed agarwood into the distillation kettle and add appropriate amount of distilled water to make the agarwood completely immersed in the water.

[0076] The distillation kettle is heated to 120°C and 0.2MPa to boil the water and generate steam. The steam passes through the agarwood and carries the volatile components upward.

[0077] 4). Condensation: The rising water vapor is introduced into the condenser to cool it and condense it into liquid.

[0078] 5). Oil-water separation: The condensed liquid is introduced into the oil-water separator. Due to the different densities of oil and water, the agarwood essential oil will float on the water surface, while the water will sink to the bottom.

[0079] 6). Collect essential oil: Collect the agarwood essential oil floating on the water surface to obtain the initially extracted agarwood essential oil.

[0080] 7). Refining: In order to improve the purity and quality of agarwood essential oil, further refining treatments such as filtration, bleaching and deodorization are carried out.

[0081] The essential oil prepared in this way is added to the three-dimensional network structure, which has a stronger flavor and better durability. It can more effectively play the role of calming the mind and relieving anxiety.

[0082] (2) Preparation of agarwood masterbatch

[0083] The masterbatch was made from agarwood after essential oil extraction, 50 parts of polyethylene (PE) was used as the carrier, 10 parts of essential oil was prepared, 3 parts of carbon dioxide was used as the foaming agent, 1 part of talcum powder was used as the nucleating agent, and 1 part of ethylene-vinyl acetate copolymer (EVA) was used as the compatibility agent to enhance the compatibility of the essential oil and the polymer.

[0084] Premixing: Put the polymer carrier, essential oil, foaming agent, nucleating agent and compatibilizer into a high-speed mixer in a certain proportion and mix them thoroughly for about 20-30 minutes to make the components evenly distributed.

[0085] Extrusion granulation: The premixed materials are put into a twin-screw extruder. The temperature of each zone of the extruder is set according to the characteristics of the selected polymer, and 200°C is selected. During the extrusion process, the foaming agent decomposes under high temperature and high pressure (temperature 130-200°C, pressure 10mpa-30mpa) to produce gas, forming a microporous structure, and the essential oil is evenly dispersed in the polymer. The extruded material is extruded into strips through the die head and then cut into particles by an underwater pelletizer. The pelletized masterbatch is quickly cooled by water cooling to prevent the collapse of the microporous structure. Use a drying device at 80°C to remove moisture from the masterbatch. The masterbatch obtained in this way releases the aroma through a slow-release effect, which can maximize the durability of the fragrance of the three-dimensional network structure.

[0086] (3) Preparation of three-dimensional network structures

[0087] 1). Put the agarwood essential oil masterbatch, thermoplastic elastomer PE and TPEE into a blender and mix well (add 1% agarwood essential oil masterbatch).

[0088] 2). The mixture is melted by physical heating, and the material is transported forward in the barrel under the rotation of the extruder screw. The extruder screw speed is 30rpm, the heating section temperature is 175℃ for zone 1, 190℃ for zone 2, 200℃ for zone 3, 210℃ for zone 4, and 215℃ for zone 5. The feed rate is 20kg / h, which can better mix the agarwood masterbatch and thermoplastic elastomer. With the increase of temperature and the action of the screw, the mixture forms a melt with a certain fluidity and is sent to a specific mold to extrude filaments.

[0089] 3). The filaments in the adjacent wire holes are bent and entangled and fall into the cooling water tank. The temperature of the cooling section is 50°C. A three-dimensional network is formed, and after cooling and solidification, it becomes a three-dimensional network body. The structure is pulled into the cooling water tank by the conveying roller in the cold water tank, and then pulled out of the water by the traction roller after cooling.

[0090] 4). Put it into the air drying box through the conveyor belt and dry it with hot air at a drying temperature of 60℃.

[0091] The obtained three-dimensional network structure of agarwood was characterized by human sleep detection and animal experiments, and its effect of calming the mind and relieving anxiety was significant.

[0092] Example 3

[0093] A method for preparing a three-dimensional network structure of agarwood, comprising the following steps:

[0094] (1) Extraction of agarwood essential oil

[0095] The water vapor method is used to extract agarwood essential oil. The detailed steps are as follows:

[0096] 1). Prepare materials: Agarwood raw materials: Choose Hainan insect-leaking agarwood, which has good quality and high oil content.

[0097] Distilled water: used to generate water vapor.

[0098] Distillation equipment: including still, condenser, oil-water separator, etc.

[0099] 2). Crushing agarwood: crush the agarwood raw materials into small pieces or powder to increase the surface area and improve the distillation efficiency.

[0100] 3). Distillation: Put the crushed agarwood into the distillation kettle and add appropriate amount of distilled water to make the agarwood completely immersed in the water.

[0101] The distillation kettle is heated to 120°C and 0.2MPa to boil the water and generate steam. The steam passes through the agarwood and carries the volatile components upward.

[0102] 4). Condensation: The rising water vapor is introduced into the condenser to cool it and condense it into liquid.

[0103] 5). Oil-water separation: The condensed liquid is introduced into the oil-water separator. Due to the different densities of oil and water, the agarwood essential oil will float on the water surface, while the water will sink to the bottom.

[0104] 6). Collect essential oil: Collect the agarwood essential oil floating on the water surface to obtain the initially extracted agarwood essential oil.

[0105] 7). Refining: In order to improve the purity and quality of agarwood essential oil, further refining treatments such as filtration, bleaching and deodorization are carried out.

[0106] The essential oil prepared in this way is added to the three-dimensional network structure, which has a stronger flavor and better durability. It can more effectively play the role of calming the mind and relieving anxiety.

[0107] (2) Preparation of agarwood masterbatch

[0108] The masterbatch was made from agarwood after essential oil extraction, 70 parts of polyethylene (PE) was used as the carrier, 30 parts of essential oil was prepared, 10 parts of carbon dioxide was used as the foaming agent, 5 parts of talcum powder was used as the nucleating agent, and 5 parts of ethylene-vinyl acetate copolymer (EVA) was used as the compatibility agent to enhance the compatibility of the essential oil and the polymer.

[0109] Premixing: Put the polymer carrier, essential oil, foaming agent, nucleating agent and compatibilizer into a high-speed mixer in a certain proportion and mix them thoroughly for about 20-30 minutes to make the components evenly distributed.

[0110] Extrusion granulation: The premixed materials are put into a twin-screw extruder. The temperature of each zone of the extruder is set according to the characteristics of the selected polymer, and 180°C is selected. During the extrusion process, the foaming agent decomposes under high temperature and high pressure (temperature 130-200°C, pressure 10mpa-30mpa) to produce gas, forming a microporous structure, and the essential oil is evenly dispersed in the polymer. The extruded material is extruded into strips through the die head and then cut into particles by an underwater pelletizer. The pelletized masterbatch is quickly cooled by water cooling to prevent the collapse of the microporous structure. Use a drying device at 50°C to remove moisture from the masterbatch. The masterbatch obtained in this way releases the aroma through a slow-release effect, which can maximize the durability of the fragrance of the three-dimensional network structure.

[0111] (3) Preparation of three-dimensional network structures

[0112] 1). Put the agarwood essential oil masterbatch, thermoplastic elastomers PE and POE into a blender and mix well (add 1% agarwood essential oil masterbatch).

[0113] 2). The mixture is melted by physical heating, and the material is transported forward in the barrel under the rotation of the extruder screw. The extruder screw speed is 30rpm, the heating section temperature is 175℃ for zone 1, 190℃ for zone 2, 200℃ for zone 3, 210℃ for zone 4, and 215℃ for zone 5. The feed rate is 20kg / h, which can better mix the agarwood masterbatch and thermoplastic elastomer. With the increase of temperature and the action of the screw, the mixture forms a melt with a certain fluidity and is sent to a specific mold to extrude filaments.

[0114] 3). The filaments in the adjacent wire holes are bent and entangled and fall into the cooling water tank. The temperature of the cooling section is 50°C. A three-dimensional network is formed, and after cooling and solidification, it becomes a three-dimensional network body. The structure is pulled into the cooling water tank by the conveying roller in the cold water tank, and then pulled out of the water by the traction roller after cooling.

[0115] 4). Put it into the air drying box through the conveyor belt and dry it with hot air at a drying temperature of 40℃.

[0116] The obtained three-dimensional network structure of agarwood was characterized by human sleep detection and animal experiments, and its effect of calming the mind and relieving anxiety was significant.

[0117] Example 4

[0118] A method for preparing a three-dimensional network structure of agarwood, comprising the following steps:

[0119] (1) Extraction of agarwood essential oil

[0120] The water vapor method is used to extract agarwood essential oil. The detailed steps are as follows:

[0121] 1). Prepare materials: Agarwood raw materials: Choose Hainan insect-leaking agarwood, which has good quality and high oil content.

[0122] Distilled water: used to generate water vapor.

[0123] Distillation equipment: including still, condenser, oil-water separator, etc.

[0124] 2). Crushing agarwood: crush the agarwood raw materials into small pieces or powder to increase the surface area and improve the distillation efficiency.

[0125] 3). Distillation: Put the crushed agarwood into the distillation kettle and add appropriate amount of distilled water to make the agarwood completely immersed in the water.

[0126] The distillation kettle is heated to 120°C and 0.2MPa to boil the water and generate steam. The steam passes through the agarwood and carries the volatile components upward.

[0127] 4). Condensation: The rising water vapor is introduced into the condenser to cool it and condense it into liquid.

[0128] 5). Oil-water separation: The condensed liquid is introduced into the oil-water separator. Due to the different densities of oil and water, the agarwood essential oil will float on the water surface, while the water will sink to the bottom.

[0129] 6). Collect essential oil: Collect the agarwood essential oil floating on the water surface to obtain the initially extracted agarwood essential oil.

[0130] 7). Refining: In order to improve the purity and quality of agarwood essential oil, further refining treatments such as filtration, bleaching and deodorization are carried out.

[0131] The essential oil prepared in this way is added to the three-dimensional network structure, which has a stronger flavor and better durability. It can more effectively play the role of calming the mind and relieving anxiety.

[0132] (2) Preparation of agarwood masterbatch

[0133] The masterbatch was made from agarwood after essential oil extraction, 60 parts of polyethylene (PE) was used as the carrier, 15 parts of essential oil was prepared, 8 parts of carbon dioxide was used as the foaming agent, 2 parts of talcum powder was used as the nucleating agent, and 3 parts of ethylene-vinyl acetate copolymer (EVA) was used as the compatibility agent to enhance the compatibility of the essential oil and the polymer.

[0134] Premixing: Put the polymer carrier, essential oil, foaming agent, nucleating agent and compatibilizer into a high-speed mixer in a certain proportion and mix them thoroughly for about 20-30 minutes to make the components evenly distributed.

[0135] Extrusion granulation: The premixed materials are put into a twin-screw extruder. The temperature of each zone of the extruder is set according to the characteristics of the selected polymer, and 190°C is selected. During the extrusion process, the foaming agent decomposes under high temperature and high pressure (temperature 130-200°C, pressure 10mpa-30mpa) to produce gas, forming a microporous structure, and the essential oil is evenly dispersed in the polymer. The extruded material is extruded into strips through the die head and then cut into particles by an underwater pelletizer. The pelletized masterbatch is quickly cooled by water cooling to prevent the collapse of the microporous structure. Use a drying device at 60°C to remove moisture from the masterbatch. The masterbatch obtained in this way releases the aroma through a slow-release effect, which can maximize the durability of the fragrance of the three-dimensional network structure.

[0136] (3) Preparation of three-dimensional network structures

[0137] 1). Put the agarwood essential oil masterbatch and thermoplastic elastomers PE, POE, and TPEE into a blender (add 1% agarwood essential oil masterbatch) and mix well.

[0138] 2). The mixture is melted by physical heating, and the material is transported forward in the barrel under the rotation of the extruder screw. The extruder screw speed is 30rpm, the heating section temperature is 175℃ for zone 1, 190℃ for zone 2, 200℃ for zone 3, 210℃ for zone 4, and 215℃ for zone 5. The feed rate is 20kg / h, which can better mix the agarwood masterbatch and thermoplastic elastomer. With the increase of temperature and the action of the screw, the mixture forms a melt with a certain fluidity and is sent to a specific mold to extrude filaments.

[0139] 3). The filaments in the adjacent wire holes are bent and entangled and fall into the cooling water tank. The temperature of the cooling section is 50°C. A three-dimensional network is formed, and after cooling and solidification, it becomes a three-dimensional network body. The structure is pulled into the cooling water tank by the conveying roller in the cold water tank, and then pulled out of the water by the traction roller after cooling.

[0140] 4). Put it into the air drying box through the conveyor belt and dry it with hot air at a drying temperature of 45℃.

[0141] The obtained three-dimensional network structure of agarwood was characterized by human sleep detection and animal experiments, and its effect of calming the mind and relieving anxiety was significant.

[0142] (4) Preparation of three-dimensional mesh pillow

[0143] 1). Put the agarwood essential oil masterbatch and thermoplastic elastomers PE, POE, and TPEE into a blender (add 1% agarwood essential oil masterbatch) and mix well.

[0144] 2). The mixture is melted by physical heating, and the material is transported forward in the barrel under the rotation of the extruder screw. The extruder screw speed is 30rpm, the heating section temperature is 180℃ for zone 1, 190℃ for zone 2, 200℃ for zone 3, 210℃ for zone 4, and 220℃ for zone 5. The feed rate is 20kg / h, which can better mix the agarwood masterbatch and thermoplastic elastomer. As the temperature rises and the screw works, the mixture forms a melt with a certain fluidity and is fed into the spinneret pillow mold. Figure 4 Extrude the filaments.

[0145] 3). The filaments in the adjacent wire holes are bent and entangled and fall into the cooling water tank. The temperature of the cooling section is 50°C. A three-dimensional network is formed, and after cooling and solidification, it becomes a three-dimensional network body. The structure is pulled into the cooling water tank by the conveying roller in the cold water tank, and then pulled out of the water by the traction roller after cooling.

[0146] 4). Put it into the air drying box through the conveyor belt and dry it with hot air at a drying temperature of 45℃.

[0147] The structure of the obtained three-dimensional mesh pillow is as follows Figure 5 shown.

[0148] Example 5

[0149] like Figure 3 As shown, a production device for a three-dimensional network structure of agarwood mainly includes an extruder, and the extruder includes a feed control device 1, a heating and cooling system 2 and a control system 3.

[0150] The extruder adopts a twin-screw extruder with a screw diameter of 270mm and an aspect ratio of 30: 1. The unique structural design of the screw can effectively mix, plasticize and extrude the materials.

[0151] The feed control device uses a variable frequency motor to control the screw speed, and can accurately adjust the screw rotation speed according to production requirements and material characteristics. When the material has good fluidity, the speed can be appropriately increased to increase the feed amount; for materials with poor fluidity or easy degradation, the speed is reduced to ensure that the material is evenly heated and plasticized, avoid excessive shearing and thermal degradation, and ensure uniform supply of materials.

[0152] The heating and cooling system consists of multiple heating sections and cooling sections, which can accurately control the temperature of the extruder barrel according to process requirements.

[0153] The control system adopts advanced PLC control technology, which can realize real-time monitoring and control of the extruder's speed, temperature, pressure and other parameters.

[0154] At the outlet of the extruder, a spinneret die 4 of a specific shape and size is installed, and its structural schematic diagram is shown in FIG. Figure 4 As shown, the plasticized material is extruded through a mold to form a primary product of a three-dimensional network structure of agarwood having a predetermined shape and size.

[0155] Experimental Example 1 Characterization of the fragrance persistence of the three-dimensional network structure of agarwood according to the present invention

[0156] Purchase the most popular agarwood medicinal pillow on the market and use an electronic nose to test the concentration of the aroma emitted by both.

[0157] The following are the detailed steps for using an electronic nose to test the concentration of the aroma volatilization of agarwood three-dimensional network structures and agarwood pillows in a closed environment:

[0158] 1. Preparation: Select two sealed containers of the same size and material, and ensure that the containers are well sealed. Calibrate the electronic nose using scent samples of known standard concentrations to ensure the accuracy of the test.

[0159] 2. Sample placement: Place the agarwood three-dimensional network structure in a sealed container and the agarwood pillow in another sealed container. Ensure that the sample is placed stably and does not touch the container wall.

[0160] 3. Environmental control: Place the two sealed containers in an environment with constant temperature, humidity and no disturbing odor.

[0161] 4. Test start: Start the electronic nose and set a suitable test time interval, for example, collect data once every hour, test three times and take the average value as the concentration of this time period. The test data is shown in Table 1 below.

[0162] Table 1. Characterization data of the fragrance persistence of agarwood

[0163]

[0164] It can be seen from the data in Table 1 that the method for detecting the concentration of volatile fragrance detected that the fragrance of the three-dimensional network structure of agarwood described in the present invention lasts for more than 8 weeks, which fully demonstrates that the product fragrance of the three-dimensional network structure of agarwood described in the present invention is more lasting.

[0165] Experimental Example 2 Characterization of the calming and anxiety-relieving effects of the three-dimensional network structure of agarwood of the present invention

[0166] The specific method is as follows:

[0167] Each group of 10 agarwood three-dimensional network structures of the present invention was applied to a mattress, and then 50 people aged 25-40 were selected for testing, with 10 people in each group. The common characteristics of the 50 test subjects were: anxiety, irritability, insomnia, long sleep time, and easy awakening. After a period of time, the changes in the characteristics of the test subjects were checked. The specific data are shown in Table 2 below.

[0168] Table 2. Characterization results of the calming and anxiety-relieving effects of the three-dimensional network structure of agarwood according to the present invention

[0169]

[0170]

[0171] Animal experiments

[0172] Autonomous activity test: Use an open field experimental device, record the number of 50 mice, 10 in each group, and apply the agarwood three-dimensional network structure described in the present invention to the floor mat. Use an animal motion trajectory tracking system for monitoring. The camera can record the activities of mice in a specific area. The software can analyze the image and calculate the movement trajectory, total distance, residence time, etc. of the mice. Parameters such as the total distance, average speed and residence time in an open area within a certain period of time. The data can be obtained from the mice after using the product of the present invention. If the activities in the open field are more natural, the exploratory behavior is increased, and the anxiety-like behavior (such as staying in a corner for too long) is reduced, it can be preliminarily shown that the product has a certain calming and anxiety-relieving effect. The specific data are shown in Table 3 below.

[0173] Table 3. Animal experimental results on the calming and anxiety-relieving effects of the three-dimensional network structure of agarwood of the present invention

[0174]

[0175] Through the above comprehensive sleep detection experiments and animal experiments, it can be more comprehensively and accurately evaluated that the three-dimensional network structure product of agarwood of the present invention can relieve fatigue, calm the mind, calm the nerves and relieve anxiety when used for a long time.

[0176] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A method for preparing a three-dimensional network structure of agarwood, It is characterized in that The following steps are involved: (1) Extraction of agarwood essential oil and preparation of masterbatch: Select high-quality agarwood raw materials and use steam distillation to extract agarwood essential oil; Mixing the extracted agarwood essential oil with polyethylene in a certain proportion; Agarwood essential oil masterbatch was prepared by microporous foaming method; (2) Extrusion molding: The prepared agarwood essential oil masterbatch and thermoplastic elastomer masterbatch are mixed evenly and then added to a twin-screw extruder. A mold with a specific shape and size is installed at the outlet of the extruder. The plasticized material is extruded through the mold to form a primary product of an agarwood three-dimensional network structure with a predetermined shape and size; (3) Post-processing The initial product after extrusion is subjected to cooling, cutting and curing post-processing steps to obtain the final agarwood three-dimensional network structure product.

2. The method for preparing the three-dimensional network structure of agarwood according to claim 1, It is characterized in that The masterbatch is prepared by the microporous foaming method described in step 1, as follows: Put the following raw materials in proportions: 10-30 parts of agarwood essential oil, 50-70 parts of polyethylene, 3-10 parts of foaming agent, 1-5 parts of nucleating agent, and 1-5 parts of compatibilizer into a high-speed mixer and mix thoroughly to make the components evenly distributed; The premixed materials are put into a twin-screw extruder, and at 180-200°C, the foaming agent forms a large number of tiny bubbles in the polymer to form a microporous structure, and the essential oil is evenly dispersed in the polymer; the extruded materials are extruded into strips through a die head, and then cut into particles by an underwater pelletizer; The cut masterbatch is quickly cooled by water cooling to prevent the microporous structure from collapsing; the moisture in the masterbatch is removed by drying equipment at 50-80°C to obtain a microporous foamed masterbatch.

3. The method for preparing the three-dimensional network structure of agarwood according to claim 1, It is characterized in that In step 2, the thermoplastic elastomer includes one or more of PE, POE, and TPEE.

4. The method for preparing the three-dimensional network structure of agarwood according to claim 1, It is characterized in that In step 2, the mixed material is melted by physical heating, and the material is transported forward in the barrel under the rotation of the screw of the extruder. The screw speed of the extruder is 30 rpm, and the temperatures of the heating sections are: 175°C for zone 1, 190°C for zone 2, 200°C for zone 3, 210°C for zone 4, and 215°C for zone 5, and the feed rate is 20 kg / h.

5. The method for preparing the three-dimensional network structure of agarwood according to claim 1, It is characterized in that In step 2, the filaments in the adjacent wire outlet holes at the outlet of the extruder are bent and twisted and fall into a cooling water tank. The temperature of the cooling section is 50° C. to form a three-dimensional network, which becomes a three-dimensional network structure after cooling and solidification.

6. The method for preparing the three-dimensional network structure of agarwood according to claim 1, It is characterized in that In step 3, the three-dimensional network structure is pulled into the cooling water tank by the conveying roller in the cold water tank, and after cooling, it is pulled out of the water by the pulling roller; it is placed in the air drying box through the conveyor belt for hot air drying, and the drying temperature is 40-60°C.

7. A production device for preparing the three-dimensional network structure of agarwood according to any one of claims 1 to 6, It is characterized in that The device mainly comprises a twin-screw extruder, a feeding system, a heating and cooling system and a control system.

8. The production device according to claim 7, It is characterized in that The screw diameter of the twin-screw extruder is 270 mm, and the aspect ratio is 30:

1.

9. The production device according to claim 7, It is characterized in that The feeding system includes a hopper and a metering device, which can accurately control the feeding amount and ensure uniform supply of materials; the heating and cooling system consists of multiple heating sections and cooling sections, which can accurately control the temperature of the extruder barrel according to process requirements; the control system adopts advanced PLC control technology, which can realize real-time monitoring and control of the speed, temperature, pressure and other parameters of the extruder.

10. The agarwood three-dimensional network structure prepared by the method for preparing the agarwood three-dimensional network structure according to claim 1, It is characterized in that The agarwood three-dimensional network structure can be cut into mattresses, seat cushions, pillows, and pet pad products.

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