KR100419604B1 - Manufacturing method of a flowerpot using chaff - Google Patents

Abstract

The present invention is a method for producing a seedling pot using rice husk, chaff powder 25-65% by weight, chitosan 25-35% by weight, stone powder 2-20% by weight, calcium carbonate 2-10% by weight, mixed with an organic solvent Mixing 5-15% by weight of the polymer adhesive and 5-15% by weight of rice paste (or wheat flour); Putting the mixed mixture into a mold and pressurizing to 1-20 Kg / Cm ² ; Drying the pressurized molding to a temperature of 40 to 70 ° C .; Removing the manufacturing mold of the dried molding; It relates to a method for producing a seedling pot using chaff, characterized in that the forming mold is removed from the molding with a chitosan solution and the coated molding with ammonia or sodium bicarbonate (NaHCO ₃ ) step, The method for producing a seedling pot using chaff according to the present invention has the effect of providing a functional seedling pot for simplifying the seedling transplanting process and helping the growth of plants when potting.

Description

Manufacturing method of seedling pot using chaff {Manufacturing method of a flowerpot using chaff}

The present invention relates to a pot for seedlings using chaff, a pot for seedlings using chaff which is formed by pressing the composition consisting of chaff powder, chitosan, stone powder, calcium carbonate, polymer adhesive and rice paste (or wheat flour paste). By providing a manufacturing method, it becomes a pot for functional seedlings to help plant growth while simplifying the seedling transplanting process when potting.

The planting method, where plants and seedlings are planted in a certain place temporarily before planting the seeds and seedlings completely in place, grows and maintains healthy seedlings during the seedling period, and keeps them until they are planted in the original farm due to climate and plant conditions. Period seedlings are protected from death, and some crops have to be planted in order to improve crop growth.

In the decorating method, seedling pots are essential for growing seeds and seedlings for a certain period of time.

Existing seedling pots are synthetic resin materials such as polymer PVC, and when transplanting seedlings, it is necessary to remove the synthetic resin pots and then transfer soil including seedlings. There was a problem to discharge.

Moreover, the once used synthetic resin pot has become a major culprit of environmental pollution since it is not recycled later, and when it is incinerated with fire to solve this problem, it is accompanied with a problem of causing secondary environmental pollution.

The present invention is to solve the problem according to the pot for seedlings made of conventional synthetic resin, chaff powder, chitosan, stone powder, calcium carbonate, polymer adhesive and rice grass (or wheat flour) by mixing the composition consisting of the chaff It is an object of the present invention to provide a method for producing a seedling pot using a functional and economic chaff by providing a method for producing a seedling pot.

The present invention is to prepare a seedling pot, chaff as a main material to prepare a seedling pot in more detail 25 to 65% by weight chaff powder, 25 to 35% by weight chitosan, 2 to 20% by weight stone powder Mixing 2 to 10 wt% of calcium carbonate, 5 to 15 wt% of a polymer adhesive mixed with an organic solvent, and 5 to 15 wt% of rice paste (or wheat flour); Putting the mixed mixture into a mold and pressurizing to 1-20 Kg / Cm ² ; Drying the pressurized molding to a temperature of 40 to 70 ° C .; Removing the manufacturing mold of the dried molding; The method of manufacturing a pot for seedlings using rice husk, characterized in that the step of coating the molded product removed from the production frame with a chitosan solution and neutralizing the coated molding with ammonia or sodium bicarbonate (NaHCO ₃ ). .

If the present invention is described in more detail as an embodiment as follows.

1st process

Collect the chaff left in the farmhouse to grind to 20 mesh or more in order to improve the cohesion during molding to prepare chaff powder.

Chaff contains a large amount of siliceous (SiO ₂ component) together with cellulose, which is light and shock-absorbing, and is relatively easy to obtain, which is very useful for modifying rubber or synthetic resin.

Chaff is not easily decayed due to its high carbon ratio, and because it takes a large amount of nitrogen in the soil, it has been reported by scholars that it should be mixed with compost and used for fermentation because it is not suitable for use in agricultural production itself. As a result of producing the actual agricultural products, the production of gas is relatively unexpected, while the main components of chaff are reported to be more effective in absorbing from chaff than fertilizer as cellulose and siliceous fiber. .

2nd process

First, chitosan was prepared by pulverizing shells of crustaceans, such as crabs and shrimps, which were invertebrates, and recovering chitin, followed by deacetylation of chitin, to prepare chitosan, and to 2% weak acid (in this example, acetic acid was used). A 3 to 5% chitosan solution was prepared by dissolving 3 to 5 g of the prepared chitosan.

<Manufacture of Chitin>

Separation and purification of chitin, which is abundant in the shells of crustaceans such as crabs and shrimps, which are invertebrates, is obtained by the following method. The shell of the crustacean was pulverized into 180-250 mesh using a ball-mill, and then immersed in a 2N-HCl aqueous solution at room temperature for 12 hours to remove lime and other minerals from the shell, and 5% -NaOH was added to dissolve the protein. Remove 2% -KMnO ₄ is added to the powder obtained above to bleach, and KMnO ₄ and MnO ₂ remaining in 1% -oxalic acid are removed. After centrifugation, the mixture was washed in the order of distilled water, ethanol and ether, followed by vacuum drying at about 70 ° C. to recover the purified chitin of white powder.

<Manufacture of Chitosan>

30 g of the chitin powder prepared above was subjected to a deacetylation reaction by heat treatment at a temperature of about 110 ° C. for 3 hours with a 300% aqueous solution of 300% of 47% -NaOH to recover 90% or more of chitosan. After the reaction, the product was washed several times with distilled water to remove alkaline substances, followed by ethanol and ether, followed by vacuum drying (60 DEG C, 40 mmHg) to obtain chitosan as a white powder, which was then refrigerated.

Chitin and chitosan are called "chitin-chitosan" because they have almost the same molecular structure, are easily soluble in weak acids, and have common properties in the human body. . In other words, these two substances are cationic natural macromolecules active in their dissolved state and are the only natural organisms in the global ecosystem. Since it has its own positive charge, if there is COO ^- Na ⁺ or other anions in the solution, a flock is formed and it is used as a flocculant. In addition, chitin and chitosan have -NH ₂ groups, and in the case of heavy metals or other organic ligands, they form chelating compounds, thereby making the binding stronger.

Since chitin and chitosan are natural polymers with the above properties, they are highly compatible with living organisms and are easily absorbed from the digestive system and skin, as well as penetrating and activating all cells, energizing immune cells, and enhancing natural healing ability. Importantly, the ingredient is not toxic at all and is considered to be as safe as sugar. Its use is not limited to plants and animals, and it is effective as a pollutant such as a sewage treatment agent and a heavy metal ion recovery agent, and in plants, it is effective as a plant antiviral disease prevention agent, a pollution-free insecticide, an anti-agrophytic agent, and a soil improver. have.

Chitin and chitosan are extracted from shells of shellfish, crabs and shrimps. Shells of shellfish, crabs and shrimps are composed of three main components: lime, protein and chitin. Since the role as a nutrient is useful, it does not necessarily limit what is used to extract chitosan.

However, since chitin is a poorly soluble substance that is insoluble in water, organic acids, and inorganic acids, the utilization rate is low. Therefore, chitin is used to increase the utilization rate by deacetylating chitin to generate chitosan.

3rd process

Fine stone discarded in the stone processing plant is collected and pulverized to about 40 to 100 mesh to prepare stone powder.

When the molding is manufactured with chaff alone, the powder is recycled in order to maintain a stable form because the hardness is weak, and the stone powder is also meaningful for recycling it as a discarded resource.

4th process

The adhesive of the present invention should use a polymer adhesive and a rice paste (or wheat flour paste) together, and are used in the following solution state.

The polymer adhesive may be selected from gelatin, natural rubber raw material, glue, polyvinyl alcohol, polyethylene, polystyrene, polypropylene, poly-1,3-butadiene, and at least two or more thereof, and the weight percent is 5 to 15 wt%. Select one or two or more of organic solvents ethanol, methanol, chloroform, dichloromethane, acetone, ethyl ether, isopropyl alcohol, ethyl acetate and mix and heat to a temperature of 40 ~ 70 ℃ to prepare a polymer adhesive solution , Rice paste (or wheat flour) is a mixture of rice flour (or wheat flour) with water and heated to a temperature of 40 ~ 70 ℃ to prepare a rice paste (or wheat flour paste) solution.

In the liquefaction of the polymer adhesive with an organic solvent, when the temperature is high, chemical deformation may occur due to burning and misalignment, so the preferred range temperature is 40 to 50 ° C.

5th process

The chaff powder 25 to 65% by weight, 25 to 35% by weight of chitosan solution (based on the weight of chitosan), 2 to 20% by weight of stone powder and 2 to 10% by weight of calcium carbonate, 5 to 15% by weight of the polymer adhesive solution ( A mixture is prepared by mixing together 15% by weight of the polymer adhesive) and 5-15% by weight of the rice paste (or wheat flour paste) solution (% by weight of the rice paste or wheat paste) to a water content of 15-25%.

In the case of excessive chaff component, cohesiveness and affinity are inferior, and it is impossible to maintain the shape of the molded product, and when it is dried, it is easily broken. Therefore, the chaff component is blended to 70% by weight or less. Since it is difficult to add stone powder to 30% by weight or less, especially when using only rice paste (or wheat flour paste) as an adhesive, it is environmentally friendly, but the molding is not strong due to lack of affinity between components for shape maintenance. Add some.

6th process

The mixture is placed in a mold and press-molded by a compression and compression method (1-20 Kg / Cm ² ), followed by drying at a temperature of 40-70 ° C.

7th process

After removing the molding frame of the molding, it is coated with a chitosan solution and neutralized by treatment with a weak base, ammonia or sodium bicarbonate (NaHCO ₃ ).

Chitosan is insoluble in water, but since chitosan is dissolved in an acidic solution to prepare the molding, the molding is deformed into moisture. Therefore, by neutralizing with a base solution such as ammonia, sodium bicarbonate, sodium carbonate, etc., the chitosan component, which is a component of the molding, is dissolved in water to prevent the shape of the molding from changing.

The following is a structural formula for estimating the bonding structure of the molding material consisting of chaff, chitosan, polymer adhesive and rice paste (or wheat flour paste) according to the present invention.

The structural formula of the main component of the siliceous rice hull with cellulose, glucose and ssalpul a polymeric adhesive of (or full-wheat), chitosan has a degree of polymerization of the main component of the structure of -NH ₂ groups of chitosan as chaff natural polymer flocculant showing the above siliceous 0-10000 Chelate bonds are formed between the Si atoms, and hydrogen bonds are formed between the component glucose (collapsed in the form of zig-zag) of the glue paste and the main component cellulose (collapsed in the form of zig-zag) of the chaff. That is, it shows the binding force due to the complexing of the chaff and chitosan structure and the increase of the hydrogen bonding force.

R '' refers to polymeric adhesives such as gelatin, natural rubber raw materials, glue, polyvinyl alcohol, polyethylene, polystyrene, polypropylene, poly-1,3-butadiene and FRP.

According to the present invention, the pots for seedlings prepared as described above have chaff as the main material, so the material is light and the siliceous content is high so as to supply the silicon component to the plants to help the growth of the seedlings, and the addition of chitosan to the silicon and chitosan By chelating the amine group, the binding force is increased, and the soil is purified by pollution treatment such as its own sewage treatment and heavy metal ion recovery, so that it is effective as an anti-viral disease prevention agent, pollution-free insecticide, preventive action of soil, and soil improver.

In addition, by transplanting the seedling port according to the present invention as it is not planting only seedlings after planting as it is, there is no need to remove the existing seedling port, simplifying the seedling transplanting process, reducing the manual cost and waste of manpower It is effective.

Industrial Applicability The present invention is applicable to a method for producing a seedling pot, depending on the type of the polymer adhesive and the form of the production frame.

The hardness of the molding varies depending on the content ratio of chaff powder, stone powder and calcium carbonate and the type of polymer adhesive. For example, when FRP is used as a polymer adhesive, the molding is hard as plastic and does not break easily. The main material for the molding is chaff, which is somewhat environmentally friendly.

Moreover, the kind of moldings changes by deforming a production frame, and the molded object of the form requested | required can be manufactured by manufacturing, cutting and shaping | molding the molded object of plate shape.

In view of this point, the moldings based on the chaff according to the present invention are not limited to the production of pots for seedlings depending on the application of the composition and the application of the production frame, but also for the protection of flower pots, rice seedlings, and electronic products. The molding according to the present invention is not limited to the seedling pot because it can be used as an application material such as a buffer, a stool, a building material, and an agricultural panel.

Port for seedlings according to the present invention is simplified in the process of transplanting the seedlings by moving the seedling pots directly to the intended place without the process of separating and transplanting the seedlings from the seedling pots when planting the pots and the process cost and manpower Since the main components of the seedling pot are chaff and chitosan, it is directly nutrients to the plant, helping to grow, and indirectly distributing nutrients to the soil. As it has a purification effect as a recovery role, it not only improves the soil but also recycles the discarded resources such as chaff and stone powder, which has the effect of recycling resources and reducing the economic cost.

Claims (3)

Rice husk powder 25-65 wt%, chitosan 25-35 wt%, stone powder 2-20 wt%, calcium carbonate 2-10 wt%, 5-15 wt% polymer adhesive mixed with organic solvent and rice paste (or wheat flour) Mixing 5 to 15% by weight; Putting the mixed mixture into a mold and pressurizing to 1-20 Kg / Cm ² ; Drying the pressurized molding to a temperature of 40 to 70 ° C .; Removing the manufacturing mold of the dried molding; The method of manufacturing a pot for seedlings using rice husk, characterized in that the step of coating the molded product from which the production frame is removed with a chitosan solution and neutralizing the coated molding with ammonia or sodium bicarbonate (NaHCO ₃ ). The method of claim 1, wherein the organic solvent is ethanol, methanol, chloroform, dichloromethane, acetone, ethyl ether, isopropyl alcohol, ethyl acetate to prepare a seedling pot using a chaff, characterized in that the mixture of at least two Way. The method of claim 1, wherein the polymer adhesive is gelatin, natural rubber, glue, polyvinyl alcohol, polyethylene, polystyrene, polypropylene, poly-1,3-butadiene and FRP, characterized in that a mixture of at least two or more Method for producing a seedling pot using chaff.