KR20220119985A - Foam composition, a method of manufacturing a mat using the same, and an eco-friendly mat manufactured through this method - Google Patents

Abstract

The present invention relates to a foam composition, a method for preparing a mat using the same, and an eco-friendly mat prepared through the method, and more specifically, to a method for preparing an eco-friendly mat using a foaming mixture comprising a hydrazide-based foaming agent, a physical foaming agent including thermally expandable microspheres, and a foaming additive capable of removing toxic gases such as sulfur dioxide released through foaming, and an eco-friendly mat prepared through the method.

Description

A foam composition, a method of manufacturing a mat using the same, and an eco-friendly mat manufactured using the same

The present invention relates to a foam composition, a method for manufacturing a mat using the same, and an eco-friendly mat manufactured through this method, and more particularly, to a hydrazide-based foaming agent, a physical foaming agent including thermally expandable microspheres, and a method for producing a mat using the same. It relates to a method for manufacturing an eco-friendly mat by using a foaming mixture containing a foaming additive capable of removing toxic gases such as sulfur dioxide, and an eco-friendly mat manufactured through this method.

A foaming agent is an additive for producing a porous foam by mixing with a synthetic resin, and is a substance that supplies a gas for forming bubbles for foam molding. These materials can be divided into organic foaming agents and inorganic foaming agents according to their properties, and can be divided into chemical foaming agents and physical foaming agents according to phase change.

Among the chemical foaming agents, azodicarbonamide is widely used because of its high amount of thermal decomposition gas generation and thus a high foaming ratio can be obtained. However, when azodicarbonamide is thermally decomposed, a small amount of harmful components such as formamide and ammonia are generated.

For example, in the case of the conventional foam mat to which azodicarbonamide was applied, the amount of ammonia generated was 500ppm or more, and in the case of formamide, 1000ppm or more was detected.

In order to suppress the generation of harmful gases as described above, attempts have been made to coat the foamed part with a film to prevent release or to adsorb through a deodorant, but the prior art could not fundamentally exclude harmful substances.

Korean Patent Application Laid-Open No. 10-2017-0135352 relates to a recyclable vehicle mat and a method for manufacturing the same through material unification using polyolefin-based resin. There was a problem with mass occurrence.

Korean Patent Publication No. 10-2017-0135352

According to the present invention, it is an object to provide an eco-friendly mat that can suppress the generation of harmful components in the foaming process.

According to the present invention, it is an object to provide a foam composition capable of foaming at a relatively low temperature of less than 200°C.

The object of the present invention is not limited to the object mentioned above. The objects of the present invention will become more apparent from the following description, and will be realized by means and combinations thereof described in the claims.

According to the present invention, polyolefin resin; and effervescent mixtures; And, the foaming mixture provides a foam composition comprising a hydrazide-based foaming agent, a physical foaming agent, and a foaming additive.

The polyolefin resin may include any one selected from the group consisting of polyethylene, polypropylene, ethylene vinyl acetate copolymer, ethylene propylene diene monomer polymer, polyvinyl alcohol, ethylene octene copolymer, ethylene butene copolymer, and the group consisting of these. .

The hydrazide-based foaming agent may include any one selected from the group consisting of p,p'-oxybis(benzenesulfonylhydrazide), p-toluenesulfonylhydrazide, benzenesulfonylhydrazide, and combinations thereof. have.

The physical foaming agent may include a shell comprising a thermoplastic resin; and thermally expansible microspheres containing a foaming compound contained in the outer shell.

The thermoplastic resin is acrylonitrile (Acrylonitrile, AN), methacrylonitrile (Methacrylonitrile, MAN), methyl methacrylate (Methylmethacrylate, MMA), methacrylic acid (Methacrylic acid, MAA), acrylic acid (Acrylic acid, AA) and any one selected from the group consisting of combinations thereof, and the foaming compound may include hydrocarbon.

The physical foaming agent may be included in an amount of 10 to 30 parts by weight based on 100 parts by weight of the hydrazide-based foaming agent.

The foaming additive may include at least one of aluminum and titanium.

The foaming additive is aluminum triethoxide, aluminum triisopropoxide, aluminum ethylacetoacetate diisopropoxide, aluminum tris- (ethylacetoacetate) (Aluminum) tris-(ethylacetoacetate)), aluminum mono-acetylacetonate bis-(ethylacetoacetate)), aluminum alkylacetylacetonate diisopropoxide, titanium acetyl Acetonate (Titanuim acetylacetonate), Titanium tetra-acetylacetonate (Titanium Ethyl Acetoacetate), Tetra-N-Butyl Titanate (Tetra-N-Butyl Titanate), Tetra-Isopropyl It may include any one selected from the group consisting of titanium (Tetra-Isopropyl Titanate), titanium phosphate complex, titanium octyleneglycolate, and combinations thereof.

The foaming additive may be included in an amount of 0.5 parts by weight to 1.5 parts by weight based on 100 parts by weight of the hydrazide-based foaming agent.

The foam composition includes 100 parts by weight of a polyolefin resin; and 5 to 30 parts by weight of the foaming mixture; may include.

The foam composition may further include 0.5 to 6 parts by weight of an additive based on 100 parts by weight of the polyolefin resin.

According to the present invention, preparing a raw material comprising the foam composition; preparing an extruded sheet by injecting the raw material into an extruder and melt-extruding; preparing a crosslinked product by irradiating an electron beam to the extruded sheet to crosslink the polyolefin resin; and foaming the crosslinked product to form a mat; It provides an eco-friendly mat manufacturing method comprising a.

The extruder may be a single extruder or a twin extruder, and the extrusion temperature may be maintained at 90 to 140 °C.

The electron beam may be irradiated with a voltage of 300 to 1,000 kV and an electron dose of 1 to 10 Mrad.

The crosslinked product may be foamed by heating it to a temperature of 150 to 250 °C.

According to the present invention, there is provided an eco-friendly mat, characterized in that manufactured by the above manufacturing method.

According to the present invention, it is possible to provide an eco-friendly mat that can suppress the generation of harmful components in the foaming process.

According to the present invention, it is possible to provide a foam composition capable of foaming at a relatively low temperature of less than 200°C.

The effects of the present invention are not limited to the above-mentioned effects. It should be understood that the effects of the present invention include all effects that can be inferred from the following description.

The above objects, other objects, features and advantages of the present invention will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed subject matter may be thorough and complete, and that the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof. Also, when a part of a layer, film, region, plate, etc. is said to be “on” another part, this includes not only cases where it is “directly on” another part, but also cases where another part is in between. Conversely, when a part, such as a layer, film, region, plate, etc., is "under" another part, this includes not only cases where it is "directly under" another part, but also cases where there is another part in between.

Unless otherwise specified, all numbers, values, and/or expressions expressing quantities of ingredients, reaction conditions, polymer compositions and formulations used herein include, among other things, the numbers, values and/or expressions such that these numbers essentially occur in obtaining such values, among others. Since they are approximations reflecting various uncertainties in the measurement, it should be understood as being modified by the term "about" in all cases. Also, where the disclosure discloses numerical ranges, such ranges are continuous and inclusive of all values from the minimum to the maximum inclusive of the range, unless otherwise indicated. Furthermore, when such ranges refer to integers, all integers inclusive from the minimum to the maximum inclusive are included, unless otherwise indicated.

In this specification, when a range is described for a variable, the variable will be understood to include all values within the stated range including the stated endpoints of the range. For example, a range of “5 to 10” includes the values of 5, 6, 7, 8, 9, and 10, as well as any subranges such as 6 to 10, 7 to 10, 6 to 9, 7 to 9, etc. It will be understood to include any value between integers that are appropriate for the scope of the recited range, such as 5.5, 6.5, 7.5, 5.5 to 8.5 and 6.5 to 9, and the like. Also for example, a range of “10% to 30%” includes values such as 10%, 11%, 12%, 13%, and all integers up to and including 30%, as well as 10% to 15%, 12% to It will be understood to include any subrange, such as 18%, 20% to 30%, etc., as well as any value between reasonable integers within the scope of the recited range, such as 10.5%, 15.5%, 25.5%, and the like.

The present invention relates to a foam composition, a method for manufacturing an eco-friendly mat using the foam composition, and an eco-friendly mat manufactured through the method.

Hereinafter, each configuration of the foam composition of the present invention will be described, and then the results of comparative experiments for mats prepared through Examples and Comparative Examples will be described.

foam composition

The foam composition of the present invention comprises a polyolefin resin and a foaming mixture, and the foaming mixture is characterized in that it contains a hydrazide-based foaming agent, a physical foaming agent, and a foaming additive.

The foam composition of the present invention includes 100 parts by weight of the polyolefin resin and 5 to 30 parts by weight of the foaming mixture.

Hereinafter, each configuration will be described.

polyolefin resin

The polyolefin resin of the present invention includes one selected from the group consisting of polyethylene, polypropylene, ethylene vinyl acetate copolymer, ethylene propylene diene monomer polymer, polyvinyl alcohol, ethylene octene copolymer, ethylene butene copolymer, and combinations thereof. .

The polyolefin resin may preferably include an ethylene vinyl acetate copolymer.

foam mixture

The foaming mixture of the present invention comprises a hydrazide-based foaming agent, a physical foaming agent and a foaming additive.

The hydrazide-based foaming agent includes any one selected from the group consisting of p,p'-oxybis(benzenesulfonylhydrazide), p-toluenesulfonylhydrazide, benzenesulfonylhydrazide, and combinations thereof. preferably p,p'-oxybis(benzenesulfonylhydrazide).

The hydrazide-based foaming agent is characterized in that it does not release ammonia gas and formamide during decomposition.

The physical blowing agent preferably comprises thermally expansible microspheres comprising a shell comprising a thermoplastic resin and a foaming compound encapsulated in the shell.

The thermoplastic resin is acrylonitrile (Acrylonitrile, AN), methacrylonitrile (Methacrylonitrile, MAN), methyl methacrylate (Methylmethacrylate, MMA), methacrylic acid (Methacrylic acid, MAA), acrylic acid (Acrylic acid, AA) and any one selected from the group consisting of combinations thereof.

The foaming compound includes hydrocarbons.

The physical foaming agent is included in an amount of 10 to 30 parts by weight based on 100 parts by weight of the hydrazide-based foaming agent. Preferably, the physical foaming agent is included in an amount of 15 to 25 parts by weight.

The foaming additive is characterized in that it includes at least one of aluminum and titanium.

The foaming additive has an effect of removing sulfur dioxide (SO ₂ ) emitted while foaming the hydrazide-based foaming agent included in the foaming agent composition.

The foaming additive is preferably aluminum triethoxide, aluminum triisopropoxide, aluminum ethylacetoacetate diisopropoxide, aluminum tris-(ethylacetoacetate) (Aluminum tris-(ethylacetoacetate)), aluminum mono-acetylacetonate bis-(ethylacetoacetate), aluminum alkylacetylacetonate diisopropoxide, Titanium acetylacetonate, Titanium tetra-acetylacetonate, Titanium Ethyl Acetoacetate, Tetra-N-Butyl Titanate, Tetra- It includes any one selected from the group consisting of isopropyl titanium (Tetra-Isopropyl Titanate), titanium phosphate complex (Titanium phosphate complex), titanium octylene glycolate (Titanium octyleneglycolate), and combinations thereof. More preferably, the additive is titanium acetylacetonate (Titanuim acetylacetonate), titanium tetra-acetylacetonate (Titanium tetra-acetylacetonate), titanium ethyl acetoacetate (Titanium Ethyl Acetoacetate), tetra-N-butyl titanate (Tetra-N- Butyl Titanate), tetra-isopropyl titanium (Tetra-Isopropyl Titanate), titanium phosphate complex (Titanium phosphate complex), titanium octylene glycolate (Titanium octyleneglycolate) and any one selected from the group consisting of combinations thereof.

The foaming additive may be included in an amount of 0.5 parts by weight to 1.5 parts by weight, preferably 0.8 parts by weight to 1.2 parts by weight, based on 100 parts by weight of the hydrazide-based foaming agent. At this time, if the foaming additive is less than 0.5 parts by weight, there is a risk that the sulfur dioxide removal effect may not be sufficiently obtained, and if it exceeds 1.5 parts by weight, the foaming agent content is relatively reduced and foaming may not proceed sufficiently.

additive

The foam composition of the present invention may further include additives as necessary, for example, it may include a softening agent and a crosslinking agent.

The softening agent preferably includes stearic acid, wherein the foam composition includes 0.2 to 6 parts by weight of the additive based on 100 parts by weight of the polyolefin resin.

How to make a mat

The eco-friendly mat manufacturing method of the present invention is characterized in that it comprises the steps of preparing a raw material containing the foam composition, manufacturing the sheet by molding the raw material, and foaming the foaming agent.

Hereinafter, each step will be described.

preparatory stage

It is a step of preparing a raw material comprising a polyolefin resin and a foam composition including the foaming mixture of the present invention. More specifically, it is preferable to prepare the raw material by mixing the polyolefin resin and the foaming mixture at a speed of 20 to 35 RPM at 70 to 100° C. for 1 to 30 minutes. If necessary, the foam composition may further include additives.

The foam composition preferably includes 5 to 30 parts by weight of the foaming mixture and 0.2 to 6 parts by weight of the additive based on 100 parts by weight of the polyolefin resin.

Sheet manufacturing steps

It is a step of manufacturing a sheet by molding the prepared raw material.

The molding may be performed by various methods, but typically may be performed through at least one of extrusion molding and injection molding.

The extrusion molding proceeds by a method of injecting a raw material into an extruder and melt-extruding, wherein the extruder may include a single extruder or a twin extruder, and the extrusion is preferably performed at 90 to 140 ° C.

The injection molding may be performed by melting the raw material, injecting it into a mold, and then cooling it.

Cross-linked product formation step

In the present invention, after the step of preparing the sheet, the step of crosslinking the polyolefin resin included in the prepared sheet to form a crosslinked product may be further included.

The crosslinking may be carried out by irradiating electron beams to the sheet, and in particular, when the sheet is irradiated by electron beams, it is preferably irradiated with a voltage of 300 to 1,000 kV and an electron dose of 1 to 40 mA.

In the present invention, crosslinking may be performed prior to foaming, but may be performed together with foaming if necessary.

mat formation steps

It is a step of foaming the foaming agent.

In order to foam the foaming agent, the sheet may be heated to a certain temperature, and in this case, crosslinking may be carried out simultaneously by irradiating an electron beam or the like, if necessary.

The foaming agent may be foamed by heating at a temperature of 150 to 250 °C, preferably by heating at a temperature of 180 to 190 °C for 1 to 10 minutes.

eco-friendly mat

A single-layer eco-friendly mat can be manufactured by the method for manufacturing the mat. The mat may be manufactured in multiple layers by laminating two or more, and the shape of the mat may be any one of a rectangle, a circle, a puzzle type, a roll type, a folding type, and the like.

Hereinafter, the present invention will be described in more detail through specific examples. However, these examples are for illustrating the present invention, and the scope of the present invention is not limited thereto.

Example 1

12 g of foaming mixture in 100 g of EVA (VA 22%) (10 g of OBSH contains 1 g of thermally expandable microspheres (T _s 165°C, T _m 195°C) and 1 g of foaming additive (titanium tetra-acetylacetonate)) and additives (stearic acid) 2 g was mixed at 100° C. for 5 minutes to prepare a raw material.

After that, the raw material is put into a single extruder and extruded at 70° C. to produce an extruded sheet, then the EVA resin is cross-linked by irradiating a voltage of 600 kV and an electron beam of 20 mA, and then put into an oven maintained at 180° C. A mat was made.

Examples 2 to 3, Comparative Example 1

A raw material was prepared by mixing the polyolefin and the foaming mixture of Table 1 in the same manner as in Example 1, and foaming it in the same manner to prepare a foam mat.

polyolefin resin foam mixture hydrazide foaming agent physical blowing agent foam additive Example 1 EVA p,p'-oxybis(benzenesulfonylhydrazide) Thermally expandable microspheres* Titanium Tetra-Acetylacetonate Example 2 EVA p,p'-oxybis(benzenesulfonylhydrazide) Thermally expandable microspheres* Titanium Ethylacetoacetate Example 3 EVA p,p'-oxybis(benzenesulfonylhydrazide) Thermally expandable microspheres* tetra-N-butyl titanate Comparative Example 1 EVA p,p'-oxybis(benzenesulfonylhydrazide) Thermally expandable microspheres* - Thermally expandable microspheres* = Outer sheath: acrylonitrile, foaming compound: hydrocarbon

Experimental example (formamide measurement)

The detected amounts of formamide were measured for the foam mats prepared in Examples 1 to 3 and Comparative Example 1, and are shown in Table 2 below.

Test Items unit Test Methods result Example 1 Formamide mg/kg ISO/TS 16189, (EN 17131:2019), GC/MS N.D. Example 2 Formamide mg/kg ISO/TS 16189, (EN 17131:2019), GC/MS N.D. Example 3 Formamide mg/kg ISO/TS 16189, (EN 17131:2019), GC/MS N.D. Comparative Example 1 Formamide mg/kg ISO/TS 16189, (EN 17131:2019), GC/MS N.D.

Experimental example (Sulfur dioxide measurement)

The detected amounts of formamide were measured for the foam mats prepared in Examples 1 to 3 and Comparative Example 1, and are shown in Table 3 below.

Test Items unit Test Methods result Example 1 SO ₂ mg/kg SO ₂ detection tube analysis (70℃ 1hr) N.D. Example 2 SO ₂ mg/kg SO ₂ detection tube analysis (70℃ 1hr) N.D. Example 3 SO ₂ mg/kg SO ₂ detection tube analysis (70℃ 1hr) N.D. Comparative Example 1 SO ₂ mg/kg SO ₂ detection tube analysis (70℃ 1hr) 42

Experimental Example (Measurement of Hazardous Substances)

The detected amounts of harmful substances were measured for the foam mats prepared in Examples 1 to 3, and are shown in Tables 4 to 6 below.

Test Items unit Test Methods result Example 1 Cadmium mg/kg EPA 3052:1996, by ICP-OES
EPA 6010B:1996, by ICP-OES N.D. Lead mg/kg EPA 3052:1996, by ICP-OES
EPA 6010B:1996, by ICP-OES N.D. Mercury mg/kg EPA 3052:1996, by ICP-OESEPA 6010B:1996, by ICP-OES N.D. Hexavalent Chromium mg/kg EPA 3060A:1996EPA 7196A: by UV-Vis N.D. Monobromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Dibromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Tribromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Tetrabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Pentabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Hexabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Heptabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Octabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Nonabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Decabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Monobromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Dibromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Tribromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Tetrabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Pentabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Hexabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Heptabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Octabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Nonabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Decabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Di-(2-ethylhexyl) phthalate (DEHP) mg/kg ICE 62321-8 N.D. Di-butyl phthalate (DBP) mg/kg ICE 62321-8 N.D. Benzyl butyl phthalate (BBP) mg/kg ICE 62321-8 N.D. Di-isobutyl phthalate (DIBP) mg/kg ICE 62321-8 N.D.

Test Items unit Test Methods result Example 2 Cadmium mg/kg EPA 3052:1996, by ICP-OES
EPA 6010B:1996, by ICP-OES N.D. Lead mg/kg EPA 3052:1996, by ICP-OES
EPA 6010B:1996, by ICP-OES N.D. Mercury mg/kg EPA 3052:1996, by ICP-OESEPA 6010B:1996, by ICP-OES N.D. Hexavalent Chromium mg/kg EPA 3060A:1996EPA 7196A: by UV-Vis N.D. Monobromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Dibromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Tribromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Tetrabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Pentabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Hexabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Heptabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Octabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Nonabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Decabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Monobromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Dibromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Tribromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Tetrabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Pentabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Hexabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Heptabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Octabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Nonabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Decabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Di-(2-ethylhexyl) phthalate (DEHP) mg/kg ICE 62321-8 N.D. Di-butyl phthalate (DBP) mg/kg ICE 62321-8 N.D. Benzyl butyl phthalate (BBP) mg/kg ICE 62321-8 N.D. Di-isobutyl phthalate (DIBP) mg/kg ICE 62321-8 N.D.

Test Items unit Test Methods result Example 3 Cadmium mg/kg EPA 3052:1996, by ICP-OES
EPA 6010B:1996, by ICP-OES N.D. Lead mg/kg EPA 3052:1996, by ICP-OES
EPA 6010B:1996, by ICP-OES N.D. Mercury mg/kg EPA 3052:1996, by ICP-OESEPA 6010B:1996, by ICP-OES N.D. Hexavalent Chromium mg/kg EPA 3060A:1996EPA 7196A: by UV-Vis N.D. Monobromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Dibromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Tribromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Tetrabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Pentabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Hexabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Heptabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Octabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Nonabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Decabromobiphenyl mg/kg EPA 3540C:1996, by GC-MS N.D. Monobromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Dibromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Tribromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Tetrabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Pentabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Hexabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Heptabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Octabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Nonabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Decabromodiphenyl ether mg/kg EPA 3540C:1996, by GC-MS N.D. Di-(2-ethylhexyl) phthalate (DEHP) mg/kg ICE 62321-8 N.D. Di-butyl phthalate (DBP) mg/kg ICE 62321-8 N.D. Benzyl butyl phthalate (BBP) mg/kg ICE 62321-8 N.D. Di-isobutyl phthalate (DIBP) mg/kg ICE 62321-8 N.D.

Claims (21)

polyolefin resin; and
foam mixture; including,
The foaming mixture comprises a hydrazide-based foaming agent, a physical foaming agent and a foaming additive. According to claim 1,
The polyolefin resin is a foam comprising any one selected from the group consisting of polyethylene, polypropylene, ethylene vinyl acetate copolymer, ethylene propylene diene monomer polymer, polyvinyl alcohol, ethylene octene copolymer, ethylene butene copolymer, and the group consisting of these. composition. According to claim 1,
The hydrazide-based foaming agent comprises any one selected from the group consisting of p,p'-oxybis(benzenesulfonylhydrazide), p-toluenesulfonylhydrazide, benzenesulfonylhydrazide, and combinations thereof. Foam composition. According to claim 1,
The physical foaming agent may include a shell comprising a thermoplastic resin; and thermally expandable microspheres comprising a foaming compound encapsulated in the shell. 5. The method of claim 4,
The thermoplastic resin is acrylonitrile (Acrylonitrile, AN), methacrylonitrile (Methacrylonitrile, MAN), methyl methacrylate (Methylmethacrylate, MMA), methacrylic acid (Methacrylic acid, MAA), acrylic acid (Acrylic acid, AA) and any one selected from the group consisting of combinations thereof,
The foaming compound is a foam composition comprising hydrocarbon. According to claim 1,
The physical foaming agent will be included in an amount of 10 to 30 parts by weight based on 100 parts by weight of the hydrazide-based foaming agent. According to claim 1,
The foaming additive is a foam composition comprising at least one of aluminum and titanium (Titanuim). According to claim 1,
The foaming additive is aluminum triethoxide, aluminum triisopropoxide, aluminum ethylacetoacetate diisopropoxide, aluminum tris- (ethylacetoacetate) (Aluminum) tris-(ethylacetoacetate)), aluminum mono-acetylacetonate bis-(ethylacetoacetate)), aluminum alkylacetylacetonate diisopropoxide, titanium acetyl Acetonate (Titanuim acetylacetonate), Titanium tetra-acetylacetonate (Titanium Ethyl Acetoacetate), Tetra-N-Butyl Titanate (Tetra-N-Butyl Titanate), Tetra-Isopropyl A foam composition comprising any one selected from the group consisting of titanium (Tetra-Isopropyl Titanate), titanium phosphate complex, titanium octyleneglycolate, and combinations thereof. According to claim 1,
The foaming additive is a foam composition comprising 0.5 parts by weight to 1.5 parts by weight based on 100 parts by weight of the hydrazide-based foaming agent. According to claim 1,
The foam composition includes 100 parts by weight of a polyolefin resin; and
5 to 30 parts by weight of the foaming mixture; A foam composition comprising a. 11. The method of claim 10,
The foam composition further comprises 0.5 to 6 parts by weight of an additive based on 100 parts by weight of the polyolefin resin. Preparing a raw material comprising the foam composition of claim 1;
manufacturing a sheet by molding the raw material; and
foaming a blowing agent; An eco-friendly mat manufacturing method comprising a. 13. The method of claim 12,
The sheet is an eco-friendly mat manufacturing method that is molded through at least one method of extrusion molding and injection molding. 14. The method of claim 13,
In the extrusion molding, the molding proceeds by injecting the raw material into the extruder and melt-extruding,
The injection molding is an eco-friendly mat manufacturing method in which the molding is carried out by melting the raw material, injecting it into the mold, and then cooling it. 15. The method of claim 14,
The extruder includes a single extruder or twin extruder, and the extrusion temperature is maintained at 90 to 140 ℃ eco-friendly mat manufacturing method. 13. The method of claim 12,
After the step of manufacturing the sheet, the step of crosslinking the polyolefin resin included in the manufactured sheet to form a crosslinked product may be further included. 17. The method of claim 16,
Form a crosslinked product by irradiating the sheet with an electron beam,
The electron beam is an eco-friendly mat manufacturing method that is irradiated with a voltage of 300 to 1,000 kV and an electron dose of 1 to 10 Mrad. 13. The method of claim 12,
An eco-friendly mat manufacturing method of heating the cross-linked product to a temperature of 150 to 250 ℃ to foam. An eco-friendly mat, characterized in that manufactured by the manufacturing method of claim 12. 20. The method of claim 19,
The mat is an eco-friendly mat that is a single layer or a multi-layer in which two or more of the single layer is laminated. 20. The method of claim 19,
The mat is an eco-friendly mat that includes any one shape of a square, a circle, a puzzle type, a roll type, and a clamshell type.