WO2021000363A1

WO2021000363A1 - Fabrication process for environmentally friendly insoles based on water hyacinth raw materials

Info

Publication number: WO2021000363A1
Application number: PCT/CN2019/097461
Authority: WO
Inventors: 蒋荣军
Original assignee: 蒋荣军
Priority date: 2019-07-02
Filing date: 2019-07-24
Publication date: 2021-01-07
Also published as: CN110218383A

Abstract

A fabrication process for environmentally friendly insoles based on water hyacinth raw materials, comprising the following steps: manually harvesting water hyacinths, preprocessing, making water hyacinth powder, high temperature sterilization, shoe pad foaming, preliminary formation, and cutting pairs. The invention takes full advantage of the strengths of water hyacinths in terms of being environmentally-friendly, pollution-free, deodorizing, sweat-absorbing, non-toxic, odorless, and vibration damping.

Description

Environmental protection insole preparation process based on water hyacinth raw materials

Technical field

The invention relates to the technical field of insole preparation, and more specifically to an environmentally friendly insole preparation process based on water hyacinth raw materials.

Background technique

Water hyacinth, also known as Eichhornia crassipes, is a floating herb. It is native to Brazil. It is now widely distributed in the Yangtze River and Yellow River basins of China and southern China. It likes a warm, humid and sunny environment. It is also highly adaptable and has a certain cold tolerance. In ponds, ditches and rice fields at an altitude of 200-1500 meters, it has also been widely grown in tropical Asia. Eichhornia crassipes is in suitable growth areas. It is often caused by excessive breeding, blocking waterways and affecting traffic. Eichhornia crassipes was once used by many countries Introduced, widely distributed all over the world, and also listed as one of the world's top 100 invasive alien species. The whole grass is feed for livestock and poultry; the tender leaves and petioles can be used as vegetables, and the whole plant can also be used for medicinal purposes. It has cooling and detoxification and dehumidification. It has the effects of dispelling wind-heat and external application of heat sore.

The footwear industry occupies a pivotal position in China’s consumer goods industry. Before 2009, more than 70% of Chinese footwear products were exported to other countries in the world. After a round of rapid growth in China’s footwear exports, the growth rate has increased from 2005 to 2008. There were signs of slowdown in the year, but footwear exports still maintained a growth rate of more than 7%. According to the analysis of the Chinese footwear market by the Statistics Bureau, in 2003, China’s urban and rural consumption of footwear products were 1.34 billion pairs and 770 million pairs, respectively. By 2008, they reached 1.72 billion pairs and 860 million pairs, totaling 2.58 billion pairs, surpassing the 2.4 billion pairs of footwear consumption in the United States in the same year, accounting for about 13% of global consumption. China has become the world's largest footwear. Product consumption country; among them, insoles are widely used in the shoe industry, health care, and special functions; generally, they are divided into two modes: shoe industry application shoe factory application insole and market commodity type. The shoe industry application insole is mainly to match the shoe size Make the corresponding shape for the bottom and midsole; make the size plate according to the last floor or panel, and make the corresponding shape.

Water hyacinth has become a common phenomenon in many places due to its strong environmental adaptability. Although water hyacinth has a certain purifying effect on the water environment, the material will be reversed. Water hyacinth will suffer from eutrophication. Mass reproduction, a barbaric blockade strategy was adopted on the water surface where they lived, blocking the sunlight, causing the underwater creatures to die without getting enough light, destroying the food chain of underwater animals, mainly reflected in the serious impact on our water environment And cause a large number of fish to die due to lack of oxygen. At present, water hyacinth can be found in 19 provinces (autonomous regions and municipalities) in North China, East China, Central China and South China. China’s major urban lakes such as Taihu Lake and Dianchi Lake are also affected by the spread of water hyacinth. Disaster trouble. Up to now, there is no effective environmental protection method to control and reduce the spread of water hyacinth, and the principle of not producing secondary pollutants as much as possible is also considered. At present, the treatment of water hyacinth is mainly based on salvage. Gourd biomass is mainly used in feed, fertilizer, papermaking, handicrafts and furniture, as a substrate for cultivating edible fungi, etc., but it is difficult to truly and effectively integrate into people’s lives to form an industrial chain .

At present, the insoles on the market use more chemical materials, which not only have a high cost but also have a certain negative impact on the environment. Especially in such a large shoe market in my country, the unfavorable factors will be infinitely amplified, restricting the footwear industry. Further development.

Summary of the invention

1. Technical problems to be solved

In view of the problems in the prior art, the purpose of the present invention is to provide an environmentally friendly insole preparation process based on water hyacinth raw materials, which can realize the use of artificially salvaged fresh water hyacinth as the raw material, followed by washing, drying, high-temperature dehydration, and crushing. Water hyacinth powder is prepared after powdering and high-temperature sterilization, and the essence is discarded from the dregs. The advantages and effects of water hyacinth are retained during the powdering process. At the same time, strict high-temperature sterilization is used to avoid harm to the human body. It is mixed with foaming raw materials and then foamed to make a large plate, which gives full play to its advantages of environmental protection, pollution-free, deodorization, sweat absorption, non-toxic, tasteless, and vibration reduction, opening a new gap in the development of the insole industry, and also Promote the environmental governance of water hyacinth flooding, and then form a virtuous circle between water hyacinth governance and the insole industry, and significantly improve economic and social benefits by turning waste into treasure.

2. Technical solution

To solve the above problems, the present invention adopts the following technical solutions.

An environmentally friendly insole preparation process based on water hyacinth raw materials includes the following steps:

S1. Fresh water hyacinths are picked up manually, and the excess attachments are cleaned and then spread and dried naturally;

S2, pretreatment, drying and sterilizing the dried water hyacinth at a high temperature under vacuum conditions of 80-120℃;

S3. Making water hyacinth powder, uniformly pulverizing the dried water hyacinth by a pulverizer to obtain water hyacinth powder, the particle size of the water hyacinth powder after crushing is 40-60 mesh;

S4. High temperature sterilization treatment, the water hyacinth powder is subjected to high temperature sterilization treatment through a sterilization device, and the high temperature steam temperature should be 120°C-180°C;

S5. Foaming the insole. Stir the water hyacinth powder and the foaming material. Pour the evenly mixed material into the foaming machine and the magnetic mold for compression and foaming. After the foaming is completed, the pressure is released and the mold is removed, and the large plate is taken out ；

S6. Preliminary forming, cutting the foamed sheet in S5 into several 20*18cm rectangular sheets, and placing them in a customized mold for hot pressing to obtain a preliminary formed insole;

S7. Cut and cut the pair, cut the preliminarily formed insole through a cutting machine, and perform finishing and trimming operations to obtain the finished insole.

Further, the sterilization device includes a sterilization reaction kettle, the sterilization reaction kettle is connected with a vacuum pump through a communication pipe, a vacuum valve is installed on the communication pipe, and the upper left end of the sterilization reaction kettle is connected with a feed three The upper end of the sterilization reaction kettle is fixedly connected with a drive motor, the inside of the sterilization reaction kettle is provided with a stirring shaft, and the output shaft of the drive motor penetrates the upper end of the sterilization reaction kettle and is fixedly connected with the stirring shaft, The lower left end of the sterilization reaction kettle is fixedly connected with a discharge port, which is convenient for high-temperature sterilization of water hyacinth powder with high efficiency and good effect.

Further, a blanking plate is fixedly connected to the lower side of the inner end of the sterilization reactor, a number of evenly distributed blowing holes are cut on the blanking plate, and a ventilation screen is fixedly connected to the upper end of the blanking plate. The lower end of the sterilization reactor is connected with a blower through the air pipe, which can assist the stirring shaft to diffuse the water hyacinth powder, and at the same time can use the gas blown from the blow hole to make the settled water hyacinth powder fly again and contact with high-temperature steam for destruction bacteria.

Further, a precision filter is installed in one end of the feed three-way pipe leading to the water hyacinth powder, the stirring shaft adopts a spiral structure, and the inner end of the stirring shaft is fixedly connected with an electric heating wire, and the precision filter acts as a countermeasure The filtering effect of impurities in water hyacinth powder and larger particle size powder, the stirring shaft can not only stir and diffuse to increase the sterilization rate and effect, but also can preheat the sterilization reactor and heat the high temperature steam, which significantly improves the high temperature steam The sterilization effect.

Further, the high temperature sterilization treatment specifically includes the following steps:

S41. Create a vacuum sterilization environment and preheat it;

S42. Pass water hyacinth powder and high-temperature steam at the same time, and perform diffusion stirring;

S43. With the help of external force, the water hyacinth powder is further diffused repeatedly to increase the contact area with high-temperature steam and the number of sterilization times, thereby improving the all-round sterilization effect.

Further, the foam material of the insole foam is 30-60% polyethylene, 10-25% talc, 0.5-2% cross-linking agent, 0.2-1% cross-linking aid, and 2-10 foaming agent. %, 3-5% foaming aid, 0.1-2% lubricant, 0.1-15% graphene, 0.1-15% silica, and the content ratio of water hyacinth powder to foaming material is 1:2-5 .

Further, the polyethylene, talc, crosslinking agent, crosslinking assistant, foaming agent, foaming assistant, lubricant, graphene and silica were put into the mixer for mixing treatment respectively. The foaming mixture is obtained, and the mixing treatment temperature is 125° C.-150° C., so that the foaming material can be fully stirred and mixed, thereby ensuring the overall performance of the insole after molding.

Further, the molding temperature of the foaming of the insole is 160°C, the molding time is 30min-40min, and the pressure is 10-15Mpa.

Further, in the pretreatment, the water hyacinth is dried at a high temperature until the dehydration rate reaches 90%. If the dehydration rate is lower than 90%, continue high-temperature drying to increase the dehydration rate to reduce the influence of the water content of the water hyacinth on subsequent processes.

Further, the finished product of the insole should undergo quality inspection, which includes Martindale wear resistance, color fastness to rubbing, breaking strength, elongation at break, elongation at fixed strength, aging resistance, breaking strength and resistance Color fastness to soaping. If the quality inspection is qualified, the finished insole enters the packaging and delivery process. If the quality inspection fails, the finished insole is discarded and recycled. Professional quality inspection of the finished insole made by the present invention must meet relevant standards and specifications. Only then can it flow to the market and strictly control the quality of insoles.

3. Beneficial effects

Compared with the prior art, the advantages of the present invention are:

(1) This scheme can realize the use of fresh water hyacinth manually salvaged as raw material, and then after washing and drying, high-temperature dehydration, crushing into powder and high-temperature sterilization, water hyacinth powder is prepared, and the essence is discarded and the dregs are used for powdering. In the process, the advantages and functions of water hyacinth are retained, and at the same time, strict high-temperature sterilization is adopted to avoid harm to the human body. After mixing it with foaming raw materials, foaming is made into a large board, giving full play to its environmental protection. The advantages of pollution, deodorization, sweat absorption, non-toxic, tasteless, and vibration reduction have opened up new gaps in the development of the insole industry, and at the same time promoted the environmental governance of the flood of water hyacinth, thereby forming a virtuous circle between water hyacinth governance and the insole industry. Turning waste into Bora significantly improves economic and social benefits.

(2) The sterilization device includes a sterilization reaction kettle. The sterilization reaction kettle is connected with a vacuum pump through a connecting pipe, and the connecting pipe is equipped with a vacuum valve. The upper left end of the sterilization reaction kettle is connected with a feed three-way pipe, and the upper end of the sterilization reaction kettle The drive motor is fixedly connected, and the inside of the sterilization reactor is equipped with a stirring shaft. The output shaft of the drive motor penetrates the upper end of the sterilization reactor and is fixedly connected with the stirring shaft. The lower left end of the sterilization reactor is fixedly connected with a discharge port for convenience High temperature sterilization of water hyacinth powder has high efficiency and good effect.

(3) A blanking plate is fixedly connected to the lower side of the inner end of the sterilization reactor. A number of evenly distributed blowing holes are cut on the blanking plate. The upper end of the blanking plate is fixedly connected with a ventilation screen, and the lower end of the sterilization reactor passes through a wind pipe. A blower is connected to assist the stirring shaft to diffuse the water hyacinth powder, and at the same time, the air blown from the blowing hole can make the settled water hyacinth powder fly again to contact with high-temperature steam for sterilization.

(4) A precision filter is installed in one end of the feed tee pipe that leads to the water hyacinth powder, the stirring shaft adopts a spiral structure, and the inner end of the stirring shaft is fixedly connected with an electric heating wire. The precision filter plays a role in preventing impurities in the water hyacinth powder. With the filtering effect of larger particle size powder, the stirring shaft can not only stir and diffuse to increase the sterilization rate and effect, but also can preheat the sterilization reactor and heat the high temperature steam, which significantly improves the sterilization effect of the high temperature steam.

(5) Dry the water hyacinth at a high temperature in the pretreatment until the dehydration rate reaches 90%. If the dehydration rate is lower than 90%, continue high-temperature drying to increase the dehydration rate to reduce the influence of the water content of the water hyacinth on the subsequent processes.

(6) Finished insoles should undergo quality inspection, including Martindale wear resistance, color fastness to rubbing, breaking strength, elongation at break, elongation at fixed strength, aging resistance, breaking strength and color fastness to soaping If the quality inspection is qualified, the insole product will enter the packaging and delivery process. If the quality inspection is unqualified, the insole product will be discarded and recycled. Professional quality inspection of the insole product made by the present invention must meet the relevant standards and specifications before it can be sold to the market , Strictly control the quality of insoles.

Description of the drawings

Figure 1 is the main process flow diagram of the present invention;

Figure 2 is a schematic diagram of the structure of the sterilization device of the present invention;

Figure 3 is a schematic diagram of the structure of the finished insole of the present invention.

Explanation of labels in the figure:

1 Sterilization reactor, 2 vacuum pump, 3 connecting pipe, 4 vacuum valve, 5 feeding three-way pipe, 6 precision filter, 7 discharge port, 8 blower, 9 drive motor, 10 stirring shaft, 11 blanking plate, 12 blowing holes, 13 ventilation screens.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, not all the embodiments, based on The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", and "top/bottom" are based on the directions shown in the drawings. Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly defined and defined, the terms "installed", "provided with", "set/connected", "connected", etc., should be interpreted broadly, such as " "Connected" can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be inside two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood under specific circumstances.

Example 1:

Please refer to Figure 1. An environmentally friendly insole preparation process based on water hyacinth raw materials includes the following steps:

S2, pretreatment, drying and sterilizing the dried water hyacinth at a high temperature under a vacuum condition of 100°C;

In the pretreatment, the water hyacinth is dried at a high temperature until the dehydration rate reaches 90%. If the dehydration rate is less than 90%, continue high-temperature drying to increase the dehydration rate to reduce the influence of the water content of the water hyacinth on the subsequent processes.

S4. High temperature sterilization treatment, the water hyacinth powder is subjected to high temperature sterilization treatment through a sterilization device, wherein the high temperature steam temperature is preferably 120°C-180°C; the high temperature sterilization treatment specifically includes the following steps:

S41. Create a vacuum sterilization environment and preheat it;

S42. Simultaneously pass water hyacinth powder and high temperature steam at 150°C, and perform diffusion stirring;

S43. With the help of external force, the water hyacinth powder is further diffused repeatedly to increase the contact area with high-temperature steam and the number of sterilization, thereby improving the all-round sterilization effect;

The molding temperature of the insole foam is 160°C, the molding time is 30min, and the pressure is 10Mpa.

Please refer to Figure 2. The sterilization device includes a sterilization reactor 1. The sterilization reactor 1 is connected with a vacuum pump 2 through a connecting pipe 3, a vacuum valve 4 is installed on the connecting pipe 3, and the upper left end of the sterilization reactor 1 is connected with a feed Tee tube 5, the upper end of the sterilization reactor 1 is fixedly connected with a drive motor 9, and the inside of the sterilization reactor 1 is provided with a stirring shaft 10, and the output shaft of the drive motor 9 penetrates the upper end of the sterilization reactor 1 and is between the stirring shaft 10 Fixed connection, the lower left end of the sterilization reactor 1 is fixedly connected with a discharge port 7, which is convenient for high-temperature sterilization of water hyacinth powder, with high efficiency and good effect. The lower side of the inner end of the sterilization reactor 1 is fixedly connected with a blanking plate 11, An air storage cavity is left between the blanking plate 11 and the inner bottom end of the sterilization reaction vessel 1, a number of evenly distributed blowing holes 12 are excavated on the blanking plate 11, and the upper end of the blanking plate 11 is fixedly connected with a ventilation screen 13, The aperture of the aeration screen 13 is smaller than the particle size of the water hyacinth powder, and only gas is allowed to pass. The lower end of the sterilization reactor 1 is connected with a blower 8 through an air pipe, which can assist the stirring shaft 10 to diffuse the water hyacinth powder and can also be used The gas blown from the blowing hole 12 causes the settled water hyacinth powder to fly again and contact with high-temperature steam for sterilization. A precision filter 6 is installed in the end of the feed tee tube 5 where the water hyacinth powder enters, and the stirring shaft 10 adopts a spiral. Type structure, the inner end of the stirring shaft 10 is fixedly connected with an electric heating wire, the precision filter 6 has a filtering effect on the impurities in the water hyacinth powder and the larger particle size powder, and the stirring shaft 10 can not only stir and diffuse, increase the sterilization rate and Effect, at the same time, the sterilization reactor 1 can be preheated and high-temperature steam insulation can be performed, which significantly improves the sterilization effect of the high-temperature steam.

The foaming material for insole foaming is polyethylene 55%, talc 15%, cross-linking agent 2%, cross-linking assistant 1%, foaming agent 5%, foaming assistant 5%, lubricant 1%, graphite Ene 10%, silicon dioxide 6%, and the content ratio of water hyacinth powder to foaming material is 1:4, polyethylene, talc, crosslinking agent, crosslinking assistant, foaming agent, foaming assistant , Lubricant, Graphene and Silica were separately put into the mixer for mixing treatment to obtain the foaming mixture. The mixing treatment temperature is 150°C, which can make the foaming material get fully stirred and mixed, and thus ensure The overall performance of the insole after molding.

Finished insoles should undergo quality inspection, including Martindale wear resistance, color fastness to rubbing, breaking strength, elongation at break, elongation at fixed strength, aging resistance, breaking strength and color fastness to soaping. If the quality inspection is qualified, the insole product will enter the packaging and delivery process. If the quality inspection is unqualified, the insole product will be discarded and recycled. The insole product prepared by the present invention is subject to professional quality inspection. The insole product must meet relevant standards and specifications before it can be sold to the market. Control the quality of insoles.

Example 2:

The foaming material for insole foaming is polyethylene 40%, talc 20%, crosslinking agent 1%, crosslinking assistant 0.5%, foaming agent 4%, foaming assistant 4%, lubricant 1%, graphite The content ratio of the water hyacinth powder to the foaming material is 1:3, and the rest are the same as in Example 1.

Example 3:

The foaming material of the insole foaming is polyethylene 60%, talc powder 25%, crosslinking agent 2%, crosslinking assistant 1%, foaming agent 10%, foaming assistant 5%, lubricant 2% , Graphene 15%, silica 15%, and the content ratio of water hyacinth powder to foaming material is 1:2, and the rest are the same as in Example 1.

The method can realize the water hyacinth powder obtained by using the fresh water hyacinth manually salvaged as the raw material, washing and drying, high-temperature dehydration, crushing into powder, and high-temperature sterilization in order to prepare water hyacinth powder, the essence is taken and the dregs are discarded, and the water hyacinth powder is retained during the powdering process The advantages and effects of water hyacinth, while avoiding harm to the human body through strict high-temperature sterilization, and foaming it with foaming raw materials to make a large board, giving full play to its environmental protection and pollution-free, eliminating The advantages of smelly, sweat-absorbing, non-toxic, tasteless, and vibration reduction have opened new gaps in the development of the insole industry, and at the same time promoted the environmental governance of the flood of water hyacinth, thereby forming a virtuous circle between the water hyacinth governance and the insole industry. Bora significantly improves economic and social benefits.

The above are only preferred specific embodiments of the present invention; but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field within the technical scope disclosed in the present invention, equivalent replacements or changes according to the technical solution and improvement concept of the present invention shall be covered by the protection scope of the present invention.

Claims

An environmentally friendly insole preparation process based on water hyacinth raw materials is characterized in that it comprises the following steps:

S1. Fresh water hyacinths are picked up manually, and the excess attachments are cleaned and then spread and dried naturally;

S2, pretreatment, drying and sterilizing the dried water hyacinth at a high temperature under vacuum conditions of 80-120℃;

S3. Making water hyacinth powder, uniformly pulverizing the dried water hyacinth by a pulverizer to obtain water hyacinth powder, the particle size of the water hyacinth powder after crushing is 40-60 mesh;

S4. High temperature sterilization treatment, the water hyacinth powder is subjected to high temperature sterilization treatment through a sterilization device, and the high temperature steam temperature should be 120°C-180°C;

S5. Foaming the insole. Stir the water hyacinth powder and the foaming material. Pour the evenly mixed material into the foaming machine and the magnetic mold for compression and foaming. After the foaming is completed, the pressure is released and the mold is removed, and the large plate is taken out ；

S6. Preliminary forming, cutting the foamed sheet in S5 into several 20*18cm rectangular sheets, and placing them in a customized mold for hot pressing to obtain a preliminary formed insole;

S7. Cut and cut the pair, cut the preliminarily formed insole through a cutting machine, and perform finishing and trimming operations to obtain the finished insole.
An environmentally friendly insole preparation process based on water hyacinth raw materials according to claim 1, characterized in that: the sterilization device comprises a sterilization reaction kettle (1), and the sterilization reaction kettle (1) passes through a communicating pipe ( 3) A vacuum pump (2) is connected, a vacuum valve (4) is installed on the connecting pipe (3), and a feed three-way pipe (5) is connected to the upper left end of the sterilization reactor (1), The upper end of the bacteria reaction kettle (1) is fixedly connected with a drive motor (9), the inside of the sterilization reaction kettle (1) is provided with a stirring shaft (10), and the output shaft of the drive motor (9) penetrates the sterilization reaction kettle ( 1) The upper end is fixedly connected with the stirring shaft (10), and the lower left end of the sterilization reaction vessel (1) is fixedly connected with a discharge port (7).
An environmentally friendly insole preparation process based on water hyacinth raw materials according to claim 2, characterized in that: the lower side of the inner end of the sterilization reaction kettle (1) is fixedly connected with a blanking plate (11), and the blanking A number of evenly distributed blowing holes (12) are excavated on the plate (11), the upper end of the blanking plate (11) is fixedly connected with a ventilation screen (13), and the lower end of the sterilization reactor (1) is connected by a wind pipe There is a blower (8).
An environmentally friendly insole preparation process based on water hyacinth raw materials according to claim 2, characterized in that: a precision filter (6) is installed in one end of the feed three-way pipe (5) that passes into the water hyacinth powder, and The stirring shaft (10) adopts a spiral structure, and the inner end of the stirring shaft (10) is fixedly connected with an electric heating wire.
The preparation process of environmentally friendly insoles based on water hyacinth raw materials according to claim 1, wherein the high temperature sterilization treatment specifically includes the following steps:

S41. Create a vacuum sterilization environment and preheat it;

S42. Pass water hyacinth powder and high-temperature steam at the same time, and perform diffusion stirring;

S43. With the help of external force, the water hyacinth powder is further diffused repeatedly to increase the contact area with high-temperature steam and the number of sterilization times, thereby improving the all-round sterilization effect.
The preparation process of an environmentally friendly insole based on water hyacinth raw materials according to claim 1, characterized in that the foaming material of the insole is 30-60% polyethylene, 10-25% talc, and crosslinking agent. 0.5-2%, crosslinking aid 0.2-1%, foaming agent 2-10%, foaming aid 3-5%, lubricant 0.1-2%, graphene 0.1-15%, silica 0.1- 15%, and the content ratio of water hyacinth powder to foam material is 1:2-5.
The preparation process of an environmentally friendly insole based on water hyacinth raw materials according to claim 4, characterized in that: polyethylene, talc, crosslinking agent, crosslinking assistant, foaming agent, foaming assistant, lubricant , Graphene and silica are separately put into a mixer for mixing treatment to obtain a foamed mixture, and the mixing treatment temperature is 125°C-150°C.
An environmentally friendly insole preparation process based on water hyacinth raw materials according to claim 1, characterized in that the molding temperature of the foaming of the insole is 160°C, the molding time is 30min-40min, and the pressure is 10-15Mpa.
The preparation process of environmentally friendly insoles based on raw materials of water hyacinth according to claim 1, characterized in that: in the pretreatment, the water hyacinth is dried at a high temperature until the dehydration rate reaches 90%, and if the dehydration rate is less than 90%, continue Dry at high temperature.
The preparation process of an environmentally friendly insole based on water hyacinth raw materials according to claim 1, characterized in that: the finished insole should undergo quality inspection, and the quality inspection includes Martindale wear resistance, rubbing color fastness, and fracture Strength, elongation at break, elongation at fixed strength, aging resistance, rupture strength and color fastness to soaping. If the quality inspection is qualified, the finished insole will enter the packaging and delivery process. If the quality inspection fails, the finished insole will be discarded. Recycling.