KR20230126275A - Resin brim for hats using eco-friendly bio-oxidizing agents - Google Patents

Abstract

The present invention relates to a resin brim for hats using an eco-friendly bio-oxidative biodegrader, and a film capable of protecting the biodegradable agent by forming the brim with the oxidative biodegrader and resin, and blocking ultraviolet rays as well as infrared rays and visible rays on the top of the cap brim. is coated so that when the hat is discarded in the environment after use, the hat brim is naturally decomposed by an oxidative biodegradator to prevent environmental pollution.
The present invention forms a resin brim for a hat by adding only 1% of an oxidative biodegrader in the form of a masterbatch having a biodegradable component to a resin such as PE, PP, PET, etc., and the upper part of the resin brim blocks ultraviolet rays, infrared rays, and visible rays. In the state where the biodegradable components of the hat visor are protected by coating the film, when the hat is discarded in the environment after use, the oxidative biodegradator causes the resin visor to be naturally degraded to prevent environmental pollution in advance. It is decomposed once in the air, then decomposed again by microorganisms in the ground, and the polymers constituting the resin are decomposed into low molecules at an appropriate temperature and sunlight, and then enter the ground and are completely decomposed by microorganisms such as bacteria to reduce carbon dioxide and water to pollute the environment. is to prevent

Description

Resin brim for hats using eco-friendly bio-oxidizing agents}

The present invention relates to a resin brim for hats using an eco-friendly bio-oxidative biodegrader. In particular, the brim of the hat is formed of an oxidative biodegrader and a resin, and the upper part of the hat brim blocks ultraviolet rays as well as infrared rays and visible rays to protect the biodegradable agent. When the hat is discarded in the environment after use, the cap is first naturally decomposed by oxidation by the oxidative biodegrader, then decomposed by microorganisms, and the polymer of the resin is decomposed into low molecules to prevent environmental pollution.

In general, OXO-Biodegradation plastics have recently become a major issue as a product that compensates for the disadvantages of biodegradable plastics.

Unlike existing natural biodegradable plastics, it is a product that has decomposition characteristics by adding only 1% to the raw material of Olefin, and has been developed so that it does not affect the physical properties of existing raw materials and the manufacturing process.

Bioplastics are components that make up biomass (biological organisms), and are materials that replace petroleum-based raw materials, which are finite resources, and are eco-friendly in that they do not increase the total amount of carbon dioxide on the earth because carbon-neutral plant biomass is used. is recognized, and it is usually made by adding 15% corn starch and 5% additives to 75% PP.

However, there is a problem with the use of food resources such as starch, and recently, in order to solve this problem, research and development are being conducted to use non-edible resources such as cellulose, waste paper, rice straw, corn husks, corn stalks, and sawdust as materials.

Recently, as social awareness of environmental issues increases, the paradigm for eco-packaging, which has been researched, developed, and commercialized centered on existing biodegradable plastics, is changing.

In particular, the category is being expanded to bio-based plastics and oxidatively-biodegradable plastics that overcome the limitations of industrialization applications, such as the weakening of physical properties, price competitiveness, and difficulty in recycling of existing biodegradable plastics, so industrialization is expected to progress more rapidly.

Recently, in the United Arab Emirates (UAE), from January 1, 2014, only products with Oxo-Biodegradable packaging and products can be imported into the UAE. Since biodegradation is difficult due to the desert climate, the UAE adopts oxidative biodegradation products in which biodegradation proceeds as the next step after the first oxidative decomposition by heat and UV.

Bioplastics, which are widely applied in the polymer industry and eco-packaging, are divided into biodegradable plastics, oxo-biodegradable plastics, and bio-based plastics, which are biodegradable. Plastic is a plastic that is finally decomposed by microorganisms into water and carbon dioxide, and is made from natural resources or petroleum.

In addition, bio-based plastics are plastics composed of biomass and are attracting attention as a material that replaces petroleum-based raw materials. Recently, new changes are taking place as the United Arab Emirates implements regulations on non-degradable plastics in addition to oxidatively biodegradable plastics.

Although the industrial application of bioplastics is still insignificant worldwide, it is expected to enter a growth period quickly by replacing up to 30% of the petroleum-based plastics market within the next 10 years. In other words, plants that are products of photosynthesis include algae, grains, trees, etc., and include existing biodegradable plastics in the field of by-products of processing, food factory by-products, urban waste, and white bio, so the scope is expanding.

Biodegradable plastics should be biodegraded by more than 90% compared to cellulose in composting conditions within 6 months by applying more than 70% of biomass, so they are used in industrial packaging materials such as cosmetics and parts packaging materials with a long shelf life, as well as soybean paste, red pepper paste, kimchi, and cheese. It is difficult to apply to the field of fermented food packaging materials, etc., and recycling is difficult, so there is a problem in that it cannot be classified as conventional plastic and discarded when discharging garbage.

Oxidative biodegradable plastics developed to solve these problems are made by adding natural substances and oxidative decomposers, and it takes 2 to 5 years to decompose in nature.

It is more productive than biodegradable plastic, has the advantage of being cheaper, and can be recycled, so it can be separated and discharged along with general plastic.

Bio-based plastics, which are rapidly industrialized, emphasize prevention of global warming through carbon dioxide reduction by partially applying carbon-neutral biomass without focusing on degradability.

In reality, in terms of industrial application of biodegradable plastic, limitations have been drawn from weak physical properties, price competitiveness, and difficulty in recycling. Recently, technology development has been actively carried out, and the aspect of reducing carbon dioxide emission is emphasized, recycling is easy, and physical properties are greatly improved. Bio-based plastics and oxidative biodegradable plastics partially supplemented have been developed and are rapidly being applied to industrialization.

In particular, bio-based plastics are expanding their application range from PET bottles to automobiles, and in order to solve the problem of using food resources, abundant non-edible by-product resources such as cellulose, rice straw, rice hulls, corn cobs, soybean meal, and corn husks are used as biomaterials. As it is used as a plastic raw material, it is applied to industrial products, automobiles, construction, civil engineering, landfill products, and packaging materials.

Currently, representative products are Bio-PE and Bio-PET, which are not significantly different from existing plastics in terms of physical properties such as strength, elongation, and decomposition period.

Since these are classified as non-degradable plastics because the decomposition period is not set, Biomaterials Res names biomass-derived non-degradable plastics rather than the term bio-based plastics.

In order to vitalize bioplastics, standardization, improvement of standard standards, activation of certification systems, promotion of cross-certification with foreign countries, and raw materials manufactured by using plastics, which are petrochemical-derived raw materials, as substitutes, vinyl products, packaging, industrial products, etc. Policy support is urgently needed to support the industrialization and vitalization of bioplastics by exempting the waste charge by the weight ratio of the mass, and induce plastic processing companies, which are mostly small and medium-sized companies, to enter the green industry to participate in low-carbon green growth. .

Oxidative biodegradable plastics have been researched and developed for several decades to make up for the disadvantages of biodegradable plastics. In the standards related to oxidative biodegradation, the definition and test method of oxidative biodegradation are stipulated, but the final biodegradation period is not specified, so the standards are ambiguous. .

Within 2-3 years at the earliest, food containers, carbon-reduced construction materials, agricultural and horticultural materials, and industrial products using bioplastics as the main raw material will be put into practical use, and in the future, the white bio industry will be led by biodegradable plastics, biodegradable plastics, and bio-based plastics. It is evaluated as an industry with unlimited market potential and growth potential.

Therefore, in order to utilize bioplastics as an opportunity to foster export industries, continuous policy support and practice by relevant ministries such as mandatory use of biomass raw materials for food packaging materials, industrial packaging materials, household goods, and shopping bags that can activate research and development are required. It is necessary.

Currently, plastic hat shaving is not biodegradable, but general shaving, which causes environmental problems, and biodegradable hat shaving has not yet been disclosed worldwide.

Patent Application No. 10-2014-0016254 Patent Application No. 10-2015-0009677 Patent Application No. 10-2018-0098955

The present invention was invented in view of the above points, and an object of the present invention is a masterbatch that can impart biodegradation characteristics by adding only 1% to PE, PP (polypropylene) and PET, which are existing raw materials ( Provides resin brims for hats using eco-friendly bio-oxidative biodegraders that allow hat brims to be naturally degraded by oxidative biodegraders when the caps are disposed of in the environment after accepting them by using oxidative biodegraders and resin in the form of masterbatch. are doing

In order to achieve the above object, the present invention forms a resin brim for a hat by adding only 1% of an oxidative biodegrader in the form of a masterbatch having a biodegradable component to a resin mixed with high density polyethylene and low density polyethylene, and The upper part is characterized in that it is configured to be naturally degraded by the oxidative biodegrader when it is discarded in the environment by coating an ultraviolet, infrared, and visible light blocking film.

The oxidative biodegrader is characterized in that it is a mixture of a metal carboxylic acid salt or a transition metal complex or a metal carboxylic acid salt and a transition metal complex.

As described above, in the present invention, a hat brim is formed with an oxidative biodegradable agent and a resin, and the upper part of the hat brim is coated with an ultraviolet, infrared, and visible light blocking film to protect the biodegradable components. When discarded, the visor is naturally decomposed by the oxidative biodegradant, which has the effect of preventing environmental pollution.

In the present invention, by mixing high-density polyethylene and low-density polyethylene and adding biodegradability by about 1%, there is an effect of not only oxidative biodegradation effect, but also solving the problem of foaming due to the residue problem during sewing due to the characteristics of existing hats.

The present invention is composed of an oxidative biodegrader for hat brim. When discarded in the environment, it is decomposed once in the air and then sequentially decomposed again by microorganisms in the ground. It has the effect of being completely decomposed by microorganisms such as bacteria and reduced to carbon dioxide and water.

1 is a graph showing a decomposition test of a resin brim for a hat using the oxidative biodegradator of the present invention
Figure 2 is a view showing the process of vinyl decomposition by the oxidative biodegrader of the present invention

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a graph showing a decomposition test of a resin brim for hats using the oxidative biodegradable agent of the present invention, and FIG. 2 is a view showing the process of decomposing vinyl by the oxidative biodegradable agent of the present invention. A hat brim is formed by adding only 1% of an oxidative biodegradator in the form of a masterbatch having biodegradable components to the resin of the back, and the upper part of the hat brim is coated with a UV, infrared, and visible ray blocking film to protect the biodegradable components included in the hat brim. When discarded in the environment after use, the hat visor is naturally decomposed by the oxidative biodegradator.

The oxidative biodegradator is a metal carboxylic acid salt or a transition metal complex or a mixture of a metal carboxylic acid salt and a transition metal complex.

However, the masterbatch is a new type of plastic raw material, and is a plastic resin/pellet in which additives are added to the carrier resin. When CaCO3 (plastic filler) is added to the carrier resin, it is a calcium carbonate masterbatch, and when a colorant is added, a color masterbatch and an additive are added. When added, it becomes an additive masterbatch, and it is possible to make plastic products with better functions by adding calcium carbonate/colorant/additives.

The oxidative biodegraders are used in a wide range of protective packaging applications such as nets, foams and bubble wraps, which can be used for food transport and protection or commonly used parcel packaging and postal applications.

In addition, it is used in polypropylene food trays and can quickly decompose when disposed of. BOPP (Biaxially Oriented Polypropylene) is used for everything from cakes, flower packaging, and sweet packaging to cigarettes, shampoos, and detergents. of agricultural mulching films, which quickly decompose so that the soil can be tilled again.

Regarding the biodegradability of the hat, it was tested using raw materials mainly produced from corn starch, but it was impossible to produce the product due to smoke during production, breakage after production, and the inability to foam, but it was found that the present invention made it possible can

Because plastic waste naturally decomposes, it can remain in the environment for years and is a result of careless consumer post-disposal. Cross-contamination with paper, cans, bottles, food, etc. Plastic bags, film, and packaging are the main sources of waste that can put pressure on garbage collection and disposal agencies, landfills, clog drains, and harm animals and marine life.

In the present invention, as an additive masterbatch capable of oxidative biodegradation, only 1% is directly added to the manufacturing process of PE, PP, PET, decomposes the film and ultimately makes it biodegradable, and the physical properties of the film / packaging during the useful life of the final product or is compatible with recycling without altering its mechanical properties and does not affect the soil or the environment.

When polymers are left in an open environment, exposure to heat and light causes oxidative degradation, which leads to a decrease in mechanical integrity and fragmentation of the material by the action of wind, rain, etc., which can be used for biodegradation. can be inherently mixed in an environment where

Microorganisms oxidize carbon in a similar way to organic waste, biomass (for the growth and reproduction of microorganisms) and plant matter that is converted to CO2, and use low Mw materials as carbonaceous food sources, CO2 being oxidized polymers. can be collected and measured as a means to determine the degree of biodegradation of

The oxidative biodegradation hat is completely decomposed in the environment by a combination of oxidation and biodegradation. To test this decomposition, the first step is an oxidative decomposition test, and the second step is that the powder that has passed through the first step becomes food for microorganisms and carbon dioxide and a biodegradability test that is converted into water. Step 3 is an ecotoxicity test that proves that the residues after completing the first and second steps are not harmful to the soil at all.

That is, in the present invention, 1% of oxidative biodegradation agent and 96-99% of synthetic resin are used to test whether existing PE, PP, and PET are converted into oxidative biodegradation products by adding only 1% of oxidative biodegradation agent.

First, the first step is the oxidative degradation test of the polymer. At each breakpoint, a carbonyl group can be formed by free radical catalyzed oxidation by a specific metal ion, the carbonyl concentration can be measured by FT-IR, and the metal The ion catalyst is regenerated so that the reaction continues and the average chain length gradually decreases.

The oxidative degradation of the first stage polymer consists of a mixture of ultraviolet (UVA and UVB) light to simulate mild outdoor sunlight, an exposure cycle in which accelerated aging conditions are encountered.

The cabinet is maintained at 50 °C, and periodic analysis by FT-IR and HT-GPC is performed to characterize the dissolution profile.

The oxidation step leads to the formation of carbonyl groups, which can be measured by FTIR spectroscopy, and the growth of carbonyl groups is directly related to the decrease in molecular weight, since each carbonyl group exhibits complete linkage.

Representative product samples are placed in custom test chambers, which are kept at 50°C and contain UVA and UVB sources to mimic mild natural sunlight.

Test samples are periodically removed and the corresponding carbonyl index determined by infrared analysis, while the sample's fragility is determined empirically.

Second, the second stage biodegradability test will be described.

Oxidizing substances are analyzed for their sensitivity to aerobic biodegradation under controlled composting conditions, which are mixed with active compost and incubated at 58 °C while directly measuring the production of CO2.

The CO2 produced in this way is corrected by subtracting the CO2 produced in the bin system (containing the same level of compost), and normalized to the theoretical level of CO2 that could be produced from the amount of material used in the test.

Thirdly, the third stage ecotoxicity test will be described.

In the ecotoxicity test, oxygen decomposition residues and by-products of the polymeric material containing the additive masterbatch are completely decomposed and reduced to carbon dioxide and water, thereby testing that there is no toxic effect.

The products produced by the first to third stages of testing as described above are used in various protective packaging fields such as nets, foam rubber and bubble wrap, which can be used in food transport and protection or parcel packaging and postal applications. there is.

Levette is used in polypropylene food trays so it can degrade quickly upon disposal, and BOPP is used in everything from cake, flower packaging, and sweet packaging to cigarettes and FMCG, with an additional 1% percentage added to vinyl after useful life. Allow the envelope to self-destruct.

On the other hand, according to the present invention, it is a product that is composted within a period required by an industrial composting plant, which is biodegradable by an artificial method, and most biopolymers in a high energy-intensive process belong to this category.

Biodegradation is used to describe a usable product that is ultimately broken down by microorganisms to form CO2, H2O and biomass, first broken down through oxidation and then molecular weight reduction, followed by microbial-based biodegradation, a process that is used for waste disposal Because it occurs in natural conditions such as the environment, it does not need to be processed in artificial conditions

The present invention as described above is not limited to the above embodiment, and can be usefully utilized by various applications in the technical field to which the present invention belongs.

Claims (3)

A resin brim for a hat is formed by adding 1% of an oxidative biodegradator in the form of a masterbatch having biodegradable components to synthetic resin, and the upper part of the resin brim is coated with a UV, infrared, and visible ray blocking film to protect the biodegradability of the hat brim. , A resin brim for a hat using an eco-friendly bio-oxidative biodegrader, characterized in that the cap brim is configured to be naturally decomposed in the air and in the ground by the oxidative biodegradator when discarded in the environment after use.
The resin brim for a hat using an eco-friendly bio-oxidative biodegrader according to claim 1, wherein the synthetic resin is a mixture of high-density polyethylene and low-density polyethylene, and the polymer of the resin is decomposed into low molecules by the oxidative biodegradant.
The method of claim 1, wherein the oxidative biodegradator,
A resin brim for hats using an eco-friendly bio-oxidative biodegrader, characterized in that it is a mixture of a metal carboxylate or a transition metal complex or a metal carboxylate and a transition metal complex.