KR20030070623A - Manufacturing method of material for natural-resolvable disposable case - Google Patents

Abstract

PURPOSE: A process for preparation of disposable receptacle material with bio-degradability is provided by combining bio-degradable synthetic resin and vegetable fiber to produce PGA to derive degradation of PP or PE by micro-organisms. CONSTITUTION: The process comprises steps of injecting powders formed of PGA and PP in 50:50 ratio by an injector having a screw with 11.43cm of diameter and a length/diameter ratio of 36-40:1; putting the powders in a hot oven and corn ear powder, volcanic stone and catalyst followed by adding vegetable fiber, mixing them for 5-20min to form a synthetic resin film; and forming shaped receptacles from the film. Such film comprises 40-50% of PP/PGA 40-45% of corn ear powder having 150 mesh, 5-15% of volcanic stone powder having 200-300 mesh and 5-10% of forming additive and catalyst and has a width ranging of 100-140cm.

Description

Manufacturing method of biodegradable disposable container material composited with biodegradable synthetic resin and vegetable fiber {Manufacturing method of material for natural-resolvable disposable case}

The present invention relates to a method for producing a biodegradable disposable container material composited with a biodegradable synthetic resin and vegetable fibers, and in particular, to produce a PGA, a co-induced microbial degradation inducer, based on crawloacetic acid. It is synthesized with inorganic material to microbially decompose PP or PE, and the vegetable fiber can be mixed with inorganic material for film work, and the multi-decomposition such as starch of corn powder of the film is microbial decomposed to make the raw material the simplest The present invention relates to a method for producing a biodegradable disposable container material in which a biodegradable synthetic resin and a vegetable fiber are manufactured to be produced by a process and to prepare a container for a complex production decomposition.

In general, it is well known that disposable containers can be disposed of immediately after use, and do not need to be cleaned to be used again.

Such disposable biodegradable containers include paper cardboard products, paper pulp foamed products, starch products, photobiodegradable plastic products, plant fiber products and the like.

The above paperboard products or paper pulp products are already used in many countries, but they consume a lot of pulp, and the products must be made of wood pulp as raw materials in order to satisfy the minimum requirements for use with sufficient strength.

1. It consumes a large amount of precious forest resources, causing the destruction of the ecological environment, 2. Energy consumption consumes 4 times as much energy as foamed plastic products, and 3. About 2.5 to 3 times higher than foamed plastic products. Paper products have advantages similar to foamed plastic products in terms of appearance, elasticity, folding resistance, etc. due to production costs, but are relatively difficult to be widely used because of the above-mentioned drawbacks.

On the other hand, starch products are being applied in small quantities outside the country,

1. The raw material is not easy to manufacture, 2. The manufacturing cost is very high, and the product that meets the requirements has a disadvantage of being expensive compared to paper products.

Also, decomposed plastics can be classified into two types, and one type is biodegradable plastics. Biodegradable plastics that people are developing are actually starch in plastics such as polyethylene (PE) and polyflophyrin (PP). It is the plastic which added.

This is because the starch component can be degraded by microorganisms after disposal, but since the true portion of the plastic cannot be degraded at all, and the amount of starch added is generally not more than 45%, this type of biodegradable plastic is " Only slightly mild mitigation against "white pollution".

The other is called photodegradable plastics, which are plastics that add some degree of photocatalyst to the plastic to accelerate the rate of aging grinding.

Such decomposed plastics are not a decomposition in the real sense but are merely grinding.

In some cases, starch was added to photodegradable plastics to form so-called photo-biodegradable plastics. However, no matter how combinations are added, decomposed plastics will only degrade starch and still not decompose plastics.

Plant fiber products can also be classified into several types based on differences in molding machines. Regardless of the type, the adhesive material, which is the basic raw material, cannot be used.

In addition, the proportion of plant fiber is very limited and the price of the plant stem body is very cheap, but the actual cost of the product is not so cheap as the developer claims. In addition, the product is weak, the final product entry rate is low, the weight of the product is heavy, the craft cost is high, and the surface lightness is not guaranteed.

Taken together, cardboard products, paper pulp products, starch products, decomposed plastics and their products, and plant fiber products all have their advantages and fatal defects, and thus cannot replace foamed plastic products.

The present invention was devised to solve such a conventional problem, and after producing PGA, which is a co-induced microorganism degradation inducing agent, as a raw material of croloacetic acid, PP or PE inorganic material is synthesized thereinto PP. B. Biodegradation of PE and vegetable fiber is mixed with minerals to make film work, and the microbial decomposition resin and vegetable fiber that allow multiple decomposition such as starch of corn powder in the film to be microbially decomposed. It is an object of the present invention to provide a method for producing a biodegradable disposable container material.

It is another object of the present invention to add a small amount of a mining agent to a film work, and to use it for decomposition of agricultural film by photolysis, which is decomposition by sunlight.

The present invention for achieving the above object uses the stem of the crop, such as corn by-products, sugar cane waste, rice straw and the like.

Among them, all of the corn ears are ground and synthesized with PP powder or PE powder to give physical and mechanical performance access to foamed plastics, and have good thermal insulation, elasticity, excellent material craft performance, and superior product strength to plastics. Do.

It uses the mold suction type method, so it has good processing performance, low energy consumption, no pollution during the production process, light weight and high surface strength.

The product is harmless and photodegradable. Allow the waste to be broken down into available fertilizer within three months of being buried.

Hereinafter, an embodiment of the present invention will be described in detail.

According to the present invention, PGA, which is a co-induced microbial decomposition inducer, is synthesized with PP or PE minerals as a raw material of chloroacetic acid, and the plant fibers are mixed with minerals. It is possible to work on the film and the starch of the corn powder in the film to microbial decomposition,

The main raw material is plant fiber, which has a wide range of raw materials such as stalks of crops, such as corn by-products, sugar cane waste, rice straw, and so on.

Among the above raw materials, it is the most competitive to grind all the corn ears and synthesize them with PP powder or PE powder.

Physical and mechanical performance approaches foamed plastics. It has good insulation effect, elasticity, excellent material craft performance, and product strength is superior to plastic.

It is manufactured by mold suction method, so it has good processing performance, low energy consumption, no pollution during production, light weight and high surface strength.

Thus, the disposable container products manufactured are non-toxic and photodegradable, and are decomposed into fertilizers that can be used within three months after the waste is buried in the ground.

The manufacturing process of the disposable container of the present invention will be described in detail as follows.

Material blending ratio

89.38% of chloroacetic acid, 3.977% of catalyst, 6.65% of solvents {acetobe, diethylether, chloroform} were synthesized at atmospheric pressure for 8 hours to form polyglycolic acid of molecular formula CH ₂ COO. Extract in the form of powder.

The synthetic resin microbial decomposition inducing agent (한) having a so-called co-mixing membrane (共混 膜) as described above is called PGA.

The compounding ratio of said PGA and PP shall be 50:50, and when mix | blending said PGA and PE, it mixes and injects at 35:65.

Wherein the PP and PE used in the form of a powder.

The diameter of the screw is 11.43cm, and the length and diameter ratio (L / D) is injected into the injection machine, which is 36 to 40: 1.

Rotational speed during injection is 100r / min ~ 160r / min and temperature is 150 ℃ ~ 230 ℃.

The powder produced in the above process is again mixed with corn flour ear powder first, and then the raw material of synthetic resin is put into a high-temperature kiln and then mixed with about 5 to 20 minutes while adding vegetable fiber.

The mixing ratio of mixing the above synthetic resin raw material,

Synthetic resin PP / PGA 40% -50%,

40% to 45% of the crushed 150 mesh powder,

Volcanic stone powder 200-300 mesh 5% -15%,

Molding additives and 5% to 10% of a catalyst,

The back is injected into a unidirectional width of 100 cm to 140 cm by a general vinyl film manufacturing method.

The molded synthetic resin film is produced in a variety of molds by the heat suction belt molding method.

When injecting the vegetable fiber, when the injection product has a melting point of 159 ° C. to 200 ° C., the two injection parts are uncooled while the PP / PGA or PE / PGA composite injection device is symmetrically perpendicular to each other. In the state, it is put into the secondary molding machine, the injection of the synthetic powder while injecting at a temperature within 200 ℃ it is possible to build a mass production line.

If the synthetic powder is directly injected into the ubiquitous shape and directly suction molded in an uncooled state, a mass production system can be constructed while reducing the production cost of the material of the disposable container.

At the time of manufacturing the above synthetic resin film, a small amount of optical agent is added to the film work to be used for decomposition of agricultural film by photolysis, which is decomposition by sunlight.

As described above, the method for producing a biodegradable disposable container material combining the microbial synthetic resin and vegetable fiber of the present invention prepares PGA, which is a co-induced microbial decomposition inducer, using crawloacetic acid as a raw material. To this end, it is synthesized with PP or PE minerals to microbially decompose PP or PE, and the vegetable fiber is mixed with minerals to make a film work, and the multi-degradation is performed such that the starch of corn powder in the film is also microbially decomposed. To lose,

A small amount of mineralizer is added to the film work to be used for the decomposition of agricultural film by photolysis, and also to maximize the hydrolysis by the moisture generated by the volcanic stone powder. While using raw materials of vegetable fiber, it is advantageous to produce raw materials of low price in the simplest process and to manufacture container material of complex production decomposition.

Claims (8)

While mixing with 50: 50 of PGA and PP, the synthetic resin microbial decomposition causing agent, the powder is injected into an injection machine having a diameter of 11.43 cm and a length and diameter ratio (L / D) of 36 to 40: 1. The process of making it into powder form, Putting the synthetic resin powder prepared in the above process into a high-temperature kiln, and then mixing with about 5 to 20 minutes while adding the vegetable fiber which contains corn wool ear powder, volcanic stone and a catalyst, and forming a synthetic resin film; The molded synthetic resin film is a method of producing a biodegradable disposable container material incorporating a biodegradable synthetic resin and vegetable fibers, characterized in that produced by the process of producing a container by a heat suction belt molding method. The method of claim 1, wherein the PGA is 89.38% chloroacetic acid, 3.977% catalyst, 6.65% solvent {acetobe, diethylether, chloroform} for 8 hours at atmospheric pressure A method for producing a biodegradable disposable container material comprising a composite of microbial synthetic resin and vegetable fibers synthesized and extracted with polyglycolic acid having a molecular formula of CH ₂ COO. The method for producing a biodegradable disposable container material according to claim 1, wherein the synthetic resin powder is mixed with a biodegradable synthetic resin and vegetable fibers, which are mixed and injected at 35:65 when blending PE and PGA. According to claim 1, wherein the rotation speed of the injection machine for injecting the synthetic resin powder is 100r / min ~ 160r / min and the temperature is 150 ℃ to 230 ℃ biodegradable disposables composited with biodegradable synthetic resin and vegetable fiber Process for producing container material. According to claim 1, wherein the synthetic film is 40% to 50% synthetic resin PP / PGA, 40% to 45% of the crushed 150 mesh powder, Volcanic stone powder 200-300 mesh 5% -15%, Molding additives and 5% to 10% of a catalyst, Method of producing a biodegradable disposable container material incorporating a biodegradable synthetic resin and vegetable fibers in which the synthetic resin film is injected into a width of 100cm ~ 140cm by the general vinyl film manufacturing method. The method of claim 1, wherein the injection molding of the vegetable fiber when the injection is a melting point of 159 ℃ to 200 ℃ uncooled the two injection moldings while making the PP / PGA or PE / PGA composite injection machine perpendicularly symmetrical Iii) A method for producing a biodegradable disposable container material in which a biodegradable synthetic resin and a vegetable fiber are put into a secondary molding machine in a state and injected at a temperature within 200 ° C. to enable mass production. The biodegradable disposable container material of claim 1, wherein the synthetic powder is injected directly into a ubiquitous material, and the biodegradable disposable container material is a combination of a biodegradable synthetic resin and a vegetable fiber that achieves cost reduction and construction of a mass production system while directly sucking the mold in an uncooled state. Manufacturing method. The microorganism according to claim 1, wherein when the synthetic resin film is prepared, a small amount of a miner is added to the film work, and the microorganism is made to be used for decomposition of agricultural film by photolysis, which is decomposition by sunlight. A method for producing a biodegradable disposable container material combining a decomposed synthetic resin and vegetable fibers.