KR20030061112A - foam rubber and metnod for manufacturing the same - Google Patents

Abstract

PURPOSE: Provided are a foaming rubber which can uniformly radiate far-infrared rays and anion irrespective of certain temperature range and shows improved heat insulating property, and a method for producing the same. CONSTITUTION: The foaming rubber is produced by the steps of (i) mixing 3-10 parts by weight(with respect to 100 parts by weight of rubber component) of heat insulating glass beads having predetermined particle sizes, 3-10 parts by weight of ceramic consisting of one selected from natural stone and coal, which radiates anion and far-infrared rays, 30-60 parts by weight of compounding agent which emits foaming gas, and is useful for improving a far-infrared radiating property, so as to form a mixture; (ii) passing the mixture though an extruder to mold the mixture so as to have a predetermined shape.

Description

Foam rubber and its manufacturing method {foam rubber and metnod for manufacturing the same}

The present invention relates to a foam rubber and a method for producing the same, which is mainly coated on necessities such as clothing, food containers, building materials, and the like, in particular, foaming rubber containing a ceramic component that is excellent in thermal insulation, and can emit high-efficiency anion and far infrared It relates to a manufacturing method.

In general, as civilization developed, people tried to lead healthy lives. Accordingly, people use products that are useful for human life, such as ceramics that can emit far infrared rays, that is, wavelengths of 5 μm to 20 μm, for example, clothing, medical supplies, food containers, interior and exterior materials, kitchen utensils, and the like. It is coated and used for stationery.

As one type, foam rubber using synthetic rubber or synthetic resin, such as a sponge for wet suits, is formed by foaming by mixing various reinforcing agents, fillers, softeners, substances capable of far-infrared radiation, etc., with rubber components as raw materials.

Then, a brief look at the conventional method for producing a product that emits far infrared rays as follows.

That is, according to the prior art, a method of manufacturing a product that emits far infrared rays includes the steps of pulverizing a ceramic that emits far infrared rays to form a powder, and adhering the powder form ceramics with an adhesive liquid polymer compound Comprising a step of making a ceramic, and coating the adhesive ceramic to the object desired by the worker, for example, food containers, building interior, exterior materials and the like.

Here, the coating method of the ceramic was mainly used a silk coating method for projecting the adhesive ceramic thinly on the surface of the product.

However, the conventional method of manufacturing a product that emits far infrared rays as described above, since the coating of a ceramic that emits far infrared rays on the surface of the product by a silk coating method, if the ceramic coated product is used for a long time or frequently washed The coated ceramic component is easily worn and thus the far-infrared radiation efficiency of the product is reduced, and since the ceramic is coated on the product at a predetermined interval, it is difficult to expect uniform far-infrared radiation efficiency throughout the product.

In addition, when the product to be coated ceramic is a large or curved product, there is another problem that it is difficult to coat the ceramic on the product.

Accordingly, the present invention has been made to solve the problems described above, which can provide the characteristics of the rubber components, such as ceramics radiating anion and far-infrared rays, glass bead for insulating function and the wear resistance and elasticity of the rubber. Foamed rubber and its manufacture that can not only decrease anion and far-infrared radiation efficiency, but also uniformly radiate far-infrared and anion irrespective of specific temperature range and improve their thermal insulation even if they are frequently washed by mixing various compounding agents The purpose is to provide a method.

In order to achieve the above object, the present invention, with respect to 100 parts by weight of the rubber component, 3 to 10 parts by weight of the glass beads of a predetermined particle size to provide a thermal insulation function, consisting of one selected from natural stones and charcoal to emit anion and far infrared rays Provided is a foamed rubber molded into a predetermined shape by passing through a extruder a mixture of 3 to 10 parts by weight of ceramic and foaming gas, and 30 to 60 parts by weight of a compounding agent for improving elasticity, abrasion resistance, and far infrared radiation characteristics.

In addition, a ceramic component having a predetermined particle size composed of one selected from natural stones and charcoal emitting anion and far infrared rays to the rubber component, glass beads having a predetermined particle size for improving thermal insulation, and for improving elasticity, abrasion resistance, and far infrared radiation characteristics. A first step of mixing a compounding agent mixed with a blowing agent and an additive for releasing a foaming gas at a predetermined ratio; After performing the first step, passing the mixture of the rubber component and the compounding agent through an extruder to remove foreign substances and bubbles in the mixture, and forming a predetermined shape; And after performing the second step and the mixture is put into a press to provide a foamed rubber manufacturing method comprising a third step of heating and pressurized so that the foaming agent is foamed into a foamed rubber.

Hereinafter, the expandable rubber emitting far-infrared rays according to the present invention and a manufacturing method thereof will be described in detail.

The expandable rubber according to the present invention and a method for manufacturing the same enable high efficiency radiation of negative ions and far infrared rays, which are beneficial to the human body, and to improve thermal insulation. The expandable rubber in the present embodiment is 100 parts by weight of a rubber component. 3 to 10 parts by weight of glass beads of a predetermined size with an empty inside; 3 to 10 parts by weight of ceramics composed of at least one of natural stone and charcoal which emit far infrared rays and anions; 30 to 60 parts by weight of a compounding agent consisting of an additive for improving the elasticity, abrasion resistance, and far-infrared radiation characteristics of the foaming agent and foaming rubber which releases the foaming gas, and the mixed mixture is passed through an extruder and molded into a predetermined shape. It is.

In addition, 3 to 10 parts by weight of a ceramic containing germanium, which promotes anion release, may be further added to the foam rubber of the present embodiment, wherein the germanium-containing ceramic has a particle size of 200 to 1000 microns.

In the present embodiment, the main material rubber material is used alone chlorine rubber excellent in base resistance, flame retardancy, elasticity and weather resistance, or the product is not required for the properties of natural rubber or synthetic rubber that is relatively inexpensive in terms of cost reduction alone Or it can use together.

For example, when the reference weight is 100g, chlorine rubber 100g alone may be used, 75g chlorine rubber and 25g natural rubber may be mixed, or 75g chlorine rubber and 25g synthetic rubber may be used.

In addition, the glass beads usually have a particle size of 50 to 300 microns, and the ceramics emitting the anion and the far infrared ray also have a particle size of 300 to 1000 microns. The ceramic is a natural stone or charcoal is used to emit anion and far infrared at the same time, a ceramic that emits only the far infrared can be added separately from the ceramic that emits the anion and far infrared at the same time. At this time, in the case of the ceramic emitting only the far infrared rays, it is made of any one of quartz-monzonite, gneiss and rhyolite tuff, and the mixing ratio is 3 to 10 parts by weight of the ceramic.

The far-infrared emissivity and anion measured values of natural stone and charcoal, which are materials of ceramics emitting the anion and far infrared rays, are shown in Table 1 below.

Table 1 Far-Infrared Emissivity and Anion Measurement of Natural Stone and Charcoal

sample Production Far infrared ray emission rate% Negative ions-max (pcs / cc) Tourmaline Brazil 88 2,485 ocher Korea 95 2,946 Cicada " 88 4,278 amethyst " 81 2,152 Raw ore " 86 2,295 Bamboo " 85 2,039 Uiwang-seok Busan, Japan 86 4,434 Guinea pig destrier 96 9,451 obsidian Janya 753 Elvan climate 87 758 Algae Land 91 1,695 Charcoal Host 93 8,348 Dragon King Stone climate 3,424 Gwangmyeongseok Strong mountain 792 lava Sanri 96 1,341 Elvan Nanjing, China 96 626 Ghost stone 87 2,274 Charcoal 82 1,748 * Anion represents the numerical value caused by the vibration of the crushed product.

The compounding agent is composed of a foaming agent, a ceramic, an active agent, a softener, a vulcanizing agent, an extrusion aid, a reinforcing agent, and the like, in order to improve the elasticity, abrasion resistance, and far-infrared radiation properties of the manufactured rubber, wherein the weight ratio of each compounding agent is 5 to 15 parts by weight of blowing agent, 5 to 50 parts by weight of reinforcing agent, 3 to 5 parts by weight of active agent, 0.5 to 5 parts by weight of extrusion aid, 5 to 30 parts by weight of softener and 0.5 to 5 parts by weight of vulcanizing agent.

In addition, the blowing agent is composed of azodicarbonamide, the reinforcing agent is formed by mixing carbon and clay in a predetermined ratio, the active agent is formed by mixing magnesium oxide, zinc oxide, stearic acid and diethylene glycol in a predetermined ratio The extrusion aid is made of paraffin wax, and the softener is formed by mixing petrolatum, naphthalene oil, aromatic oil, and factions at a predetermined ratio, and the vulcanizing agent is made of ethylene thiourea.

The blending ratio of each compounding agent based on 100 g of the rubber material is 3 to 5 g of active agent, 5 to 30 g of softener, 0.5 to 5 g of vulcanizing agent, 0.5 to 5 g of extrusion aid, 5 to 15 g of foaming agent, reinforcing agent Is 5 to 50 g and ceramic is 3 to 10 g, and each compounding agent is selected according to the production cost and the purpose of use within the range of the weight ratio, and the mixing ratio of the rubber material and the compounding agent is usually 1: 1 to 1.5. In the present embodiment, the compounding ratio of 1: 1 will be described as an example.

Then, when the weight of the rubber material is 100 grams, an example of the weight ratio of each compounding agent is displayed for each component of the compounding agent as shown in Table 2 below.

<Table 2>

Material Name ingredient Compound weight (gram) Rubber CR 100 Reinforcement Carbon clay 2518 Active agent Magnesium Oxide (MgO) Zinc Oxide (ZnO) Stearic Acid Diethylene Glycol 5520.85 Extrusion aid Paraffin wax 2 Softener Vaseline Naphthalene oil (N-2 oil) Aromatic oil (fact) 2.4154.50.5 blowing agent Azodicarbonamide 13 Vulcanizing agent Ethylene chiourea 0.15 ceramic ceramics 6.6

The following describes a method for producing a foam rubber according to the present invention.

First, chlorine rubber, natural rubber, synthetic rubber, etc. are used alone, or a mixture containing a blowing agent for releasing foaming gas and an additive for improving elasticity, abrasion resistance, and far-infrared radiation characteristics in a rubber material mixed with each of them. An initial mixing step of mixing the agent in a ratio of 1: 1; Mixing 3 to 10 parts by weight of a ceramic that radiates far infrared rays and anions with respect to 100 parts by weight of the mixture, and 3 to 10 parts by weight of hollow glass beads for performing a heat insulation function; A first aging step of ripening at room temperature for at least 24 hours so that the compounding agent is uniformly distributed in the mixture; An extrusion process step of passing the first matured mixture through an extruder to form a flat plate having a predetermined thickness; Cutting the flat mixture to a certain size and weight; A molding step of putting the cut mixture into a preheated press to heat and pressurize the foaming agent for a predetermined temperature and time at which the foaming agent can foam; A second aging step of aging the foamed rubber at room temperature for at least 48 hours after the forming step; Combining the cloth of a desired color on both sides of the aged foamable rubber through an adhesive.

The adhesive used in the step of encapsulating the cloth in the foamable rubber is an anion or a ceramic that emits far-infrared rays is added uniformly by adding a predetermined amount (usually 3 to 10 parts by weight), and then bonded.

In addition, the extrusion process includes a process of remixing the first matured mixture into an open roll.

In addition, in the extrusion processing step, since the ceramic emits a lot of heat, the cooling water temperature of the extruder is adjusted downward, and the extruder is equipped with a net to remove bubbles and foreign substances contained in the mixture passing through the net. Remove

The ceramic uses a natural stone and charcoal that can emit negative ions and far-infrared rays, and in order to increase the amount of negative ions, radioactive minerals (heated natural stones) are mixed with the natural stones.

Table 3 below shows the component analysis tables of ores containing rare earths and rare elements.

<Table 3>

Component Unit (ppm) Strontium (Sr) 167 Vanadium (V) 25.95 Zinc (Zn) 44.7 Ce (Ce) 68.42 Neodymium (Nd) 36.28 Lanthanum (La) 37.68 Barium (Ba) 63.3 Rubidium (Rb) 200 Cesium (Cs) 51.26 Gallium (Ga) 12.75

In the manufacturing process, in addition to the ceramic that emits only the far infrared, apart from the ceramic that emits the anion and the far infrared, the far-infrared radiating ceramic has a wavelength band of far-infrared of all the wavelengths emitted therefrom when the ambient temperature is 35 ℃ One selected from quartz-monzonite or gneiss or rhyolite tuff has a proportion of 90% or more by the phosphorus wavelength of 5 to 20 µm.

In the second aging step in the present embodiment, the product molded in the state in which the ceramic is added, compared to the molded product without the ceramic is severely shrinked, to prevent the product produced by using the foam rubber to shrink It will be done for.

Since the expandable rubber emitting far-infrared radiation according to the present invention is made in the shape of a flat plate, it is cut and processed according to the intention of the operator, and since negative ions and far-infrared rays are emitted, it promotes blood circulation, antioxidant function, deodorization, It can be used as a substitute for cushions and pressure bandages because of the function of sterilization, etc. In addition, the present invention can be utilized as a wetsuit fabric material because it has excellent thermal recovery because it contains glass beads with excellent fatigue recovery and heat insulation. In addition, the foamed rubber may be adhered to the inside of a container for transporting food such as vegetables or meat, thereby delaying the food from decaying during transportation, thereby extending the freshness and shelf life.

The present invention described above is not limited to the above-described embodiments and drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

As described above, according to the present invention, it contains anion and far-infrared rays, which are beneficial to the human body, which facilitates blood circulation, stimulates metabolism, and has excellent thermal effect, such as wetsuits, cushions, bandages, food containers, building interiors. Can be used to expand the scope of application, such as coating materials, such as exterior materials.

In addition, the effect of improving the elasticity, abrasion resistance and far-infrared radiation characteristics of the foamed rubber by not only uniformly radiating anion and far infrared rays irrespective of a specific temperature range, but also by mixing a compounding agent for improving physical properties of the foamed rubber. There is.

In addition, by varying the mixing ratio of the rubber material, that is, chlorine rubber, natural rubber and synthetic rubber according to the use of the product, there is an effect that can be appropriately adjusted production cost.

Claims (13)

It emits 3 to 10 parts by weight of glass beads having a predetermined particle size for insulating function, 3 to 10 parts by weight of ceramics composed of one selected from natural stones and charcoal that emits anions and far infrared rays, and foaming gas. A foamable rubber molded into a predetermined shape by passing a mixture of 30 to 60 parts by weight of a compounding agent for improving elasticity, abrasion resistance, and far-infrared radiation characteristics through an extruder. The method of claim 1. The glass beads are foamed rubbers having a particle size of 50 to 300 microns. The method of claim 1, The ceramic is a foam rubber having a particle size of 300 to 1000 microns. The method according to any one of claims 1 to 3, A foamable rubber containing 3 to 10 parts by weight of a ceramic containing germanium and having a particle size of 200 to 1000 microns further mixed with the mixture. The method of claim 1, The ceramic is tourmaline, loess, biotite, amethyst, raw ore, bamboo charcoal, Uwangwang, guineastone, obsidian, ganban stone, dragon royal stone, ore, lava stone, lava stone, precious stone any one of natural stone, algae coal, charcoal Foam rubber containing charcoal. The method of claim 5, The blowing agent is composed of azodicarbonamide, the reinforcing agent is formed by mixing carbon and clay in a predetermined ratio, the active agent is formed by mixing magnesium oxide, zinc oxide, stearic acid and diethylene glycol in a predetermined ratio, The extrusion aid is made of paraffin wax, the softening agent is formed by mixing petrolatum, naphthalene-based oil, aromatic oil and the faction in a predetermined ratio, the vulcanizing agent is a foamed rubber consisting of ethylene thiourea. The method of claim 1, The compounding agent has a mixing ratio of 5 to 15 parts by weight of foaming agent, 5 to 50 parts by weight of reinforcing agent, 3 to 5 parts by weight of active agent, 0.5 to 5 parts by weight of extrusion aid, 5 to 30 parts by weight of softener and 0.5 to 5 parts by weight of vulcanizing agent. Foam rubber. Ceramic component of selected particle size consisting of natural stone and charcoal which emits anion and far infrared rays to rubber component, glass beads of predetermined particle size to improve insulation, foaming gas to improve elasticity, wear resistance and far-infrared radiation characteristics A first step of mixing a compounding agent mixed with a blowing agent and an additive to release a predetermined ratio; After performing the first step, passing the mixture of the rubber component and the compounding agent through an extruder to remove foreign substances and bubbles in the mixture, and forming a predetermined shape; And After performing the second step, the mixture is put into a press, and the third step of heating and pressurizing the foaming agent to foam to make the foamable rubber. Foam rubber production method comprising a. The method of claim 8, Foaming rubber manufacturing method in which the compounding agent and the rubber component in the first step is mixed to 1 to 1.5: 1. The method of claim 8, A first aging step of aging the mixture for 24 hours or more at room temperature so that the mixture is uniformly distributed in the rubber component after performing the first step; And After performing the third step, in order to prevent shrinkage of the product made of the foam rubber, the secondary aging step of aging the foam rubber for 48 hours or more at room temperature Foam rubber production method further comprising. The method of claim 8, The first step is The method of manufacturing a foamed rubber further comprising the step of further adding a ceramic made of quartz-monzonite, gneiss, rhyolite tuff which emits far infrared rays to the ceramics emitting anion and far infrared rays. The method of claim 8, The second step, Foaming rubber manufacturing method comprising the step of forming the mixture into a flat plate of a predetermined thickness. The method according to any one of claims 8 to 12, After performing the third step, the cloth of the desired color on both sides of the aged foamed rubber is blended with an adhesive, the adhesive used in the process of laminating the cloth on the foamed rubber is an anion or a ceramic that emits far infrared rays a predetermined amount (Usually 3 to 10 parts by weight) is added to uniformly mixed, and then further comprising the step of adhering a foamed rubber manufacturing method.