KR20110101434A - Non-flammable light wood plastic compound and preparing thereof - Google Patents
Non-flammable light wood plastic compound and preparing thereof Download PDFInfo
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- KR20110101434A KR20110101434A KR1020100020428A KR20100020428A KR20110101434A KR 20110101434 A KR20110101434 A KR 20110101434A KR 1020100020428 A KR1020100020428 A KR 1020100020428A KR 20100020428 A KR20100020428 A KR 20100020428A KR 20110101434 A KR20110101434 A KR 20110101434A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 49
- 239000004033 plastic Substances 0.000 title claims abstract description 49
- 241000771208 Buchanania arborescens Species 0.000 title 1
- 150000001875 compounds Chemical class 0.000 title 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003063 flame retardant Substances 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 34
- 239000006260 foam Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 15
- 229920001400 block copolymer Polymers 0.000 claims description 37
- 239000000203 mixture Substances 0.000 claims description 37
- 229920005989 resin Polymers 0.000 claims description 35
- 239000011347 resin Substances 0.000 claims description 35
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000004254 Ammonium phosphate Substances 0.000 claims description 20
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 20
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 20
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 20
- 239000011342 resin composition Substances 0.000 claims description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 17
- 239000001569 carbon dioxide Substances 0.000 claims description 17
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 14
- 239000008188 pellet Substances 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 229920005996 polystyrene-poly(ethylene-butylene)-polystyrene Polymers 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 10
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 229920002522 Wood fibre Polymers 0.000 claims description 5
- 229920006132 styrene block copolymer Polymers 0.000 claims description 5
- 239000002025 wood fiber Substances 0.000 claims description 5
- RLRINNKRRPQIGW-UHFFFAOYSA-N 1-ethenyl-2-[4-(2-ethenylphenyl)butyl]benzene Chemical compound C=CC1=CC=CC=C1CCCCC1=CC=CC=C1C=C RLRINNKRRPQIGW-UHFFFAOYSA-N 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- BXOUVIIITJXIKB-UHFFFAOYSA-N ethene;styrene Chemical group C=C.C=CC1=CC=CC=C1 BXOUVIIITJXIKB-UHFFFAOYSA-N 0.000 claims description 2
- HIBWGGKDGCBPTA-UHFFFAOYSA-N C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 Chemical compound C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 HIBWGGKDGCBPTA-UHFFFAOYSA-N 0.000 claims 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 238000005187 foaming Methods 0.000 abstract description 17
- 239000012530 fluid Substances 0.000 abstract description 7
- 239000004566 building material Substances 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 description 11
- 239000000047 product Substances 0.000 description 10
- 239000004743 Polypropylene Substances 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- -1 polypropylene Polymers 0.000 description 7
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 5
- 238000011835 investigation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000007416 differential thermogravimetric analysis Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000002411 thermogravimetry Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000013012 foaming technology Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229920000704 biodegradable plastic Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000004619 high density foam Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/224—Surface treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/5399—Phosphorus bound to nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/006—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to block copolymers containing at least one sequence of polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Abstract
본 발명은 난연성 경량 나무플라스틱 및 이의 제조방법에 관한 것으로, 보다 상세하게는 초임계 유체를 이용한 발포 공정을 이용하여 난연성, 경량성 및 기계적 강도가 우수한 발포체를 포함하는 난연성 경량 나무플라스틱에 관한 것으로, 상기 난연성 경량 나무플라스틱은 초임계 유체의 물리적인 동작만으로 다공구조를 형성할 수 있어 난영ㄴ성 경량 나무플라스틱의 제조단가를 절감할 수 있는 장점이 있으며, 난연성 및 경량성과 함께 향상된 치수안정성 및 기계적 강도를 가지고 있어 다공성 건축 자재 등의 적용에 크게 기여할 것이다.The present invention relates to a flame retardant lightweight wooden plastic and a method for manufacturing the same, and more particularly to a flame retardant lightweight wooden plastic comprising a foam having excellent flame retardancy, light weight and mechanical strength using a foaming process using a supercritical fluid, The flame-retardant lightweight wooden plastic can form a porous structure only by the physical operation of the supercritical fluid, which has the advantage of reducing the manufacturing cost of the hard-resistant lightweight wooden plastic, and has improved dimensional stability and mechanical strength with flame retardancy and lightness. It will greatly contribute to the application of porous building materials.
Description
본 발명은 난연성 경량 플라스틱 및 이의 제조방법에 관한 것이다.The present invention relates to a flame retardant lightweight plastic and a method of manufacturing the same.
일반적인 플라스틱 사출 성형 기술은 대부분 폴리프로필렌, 폴리에틸렌, 에틸렌비닐아세테이트 공중합체 등의 합성수지로 만들어진 알갱이, 즉 펠릿(pellet)을 전기열과 기계적 마찰 등을 이용하여 녹인 후 힘을 가하여, 원하는 형상으로 만들어진 금형 내로 밀어냄으로써 일정한 형상을 가진 여러 가지 플라스틱 제품을 제조하는 것으로서, 제품 제조비용 중에서 재료가 차지하는 비율이 매우 높기 때문에, 재료비의 절감과 더불어 플라스틱 제품의 무게를 더욱 줄일 수 있도록 하는 노력에 의해 발포기술이 개발, 개선되고 있다. In general, plastic injection molding technology mostly melts pellets made of synthetic resin such as polypropylene, polyethylene, ethylene vinyl acetate copolymer, etc., using electric heat and mechanical friction, and then applies a force to a mold made into a desired shape. As the manufacture of various plastic products with a certain shape by extrusion, since the ratio of the material to the manufacturing cost of the product is very high, the foaming technology was developed by efforts to reduce the material cost and further reduce the weight of the plastic product. Is improving.
상기 발포기술이란 플라스틱 제품 안에 미세한 크기를 갖는 많은 기포들이 생기도록 하는 기술로서, 대부분이 화학적 발포제를 펠릿과 함께 잘 섞은 후 외부에서 열을 가하여 발포 물질들이 기화되도록 함으로써 제품 내부에 기포가 형성되도록 한다. 기포가 형성되면 제품의 많은 부분들은 기포가 차지하므로, 재료비를 대폭 절감할 수 있고, 제품의 무게를 줄일 수 있을 뿐만 아니라, 기포로 인한 단열 성능을 얻을 수 있는 장점이 있다. 이와 같은 사출발포 방법의 제품의 경우 플라스틱 성형품 전체에 기포가 동일하게 분포되고, 고밀도 발포체의 특성을 가져 기계적 강도가 요구되는 분야에 용이하게 적용될 수 있다.The foaming technology is a technology for generating a large number of bubbles having a fine size in the plastic product, most of the chemical foaming agent is mixed well with the pellets and then heated from the outside so that the foaming material is vaporized to form bubbles inside the product. . When bubbles are formed, a large portion of the product is occupied by bubbles, so that the material cost can be greatly reduced, the weight of the product can be reduced, and the thermal insulation performance due to bubbles can be obtained. In the case of the product of such an injection-foaming method, bubbles are uniformly distributed throughout the plastic molded article, and have a high density foam property, and thus can be easily applied to a field requiring mechanical strength.
이에 본 발명자들은 내부에 미세한 공기주머니와 공기통로가 형성되어 가볍고, 건물의 단열성과 방음성을 크게 향상시킬 수 있게 하는 다공성 건축자재로서 자연 친화적인 생분해성 플라스틱에 대한 지속적인 연구를 한 결과, 물리적인 방법으로 우수한 인장강도 및 충격강도를 나타내는 난연성의 경량 발포체를 제조하고, 본 발명을 완성하였다.Accordingly, the inventors of the present invention conducted a continuous study on biodegradable plastics that are naturally friendly as a porous building material that enables the formation of fine air pockets and air passages inside, which are light and greatly improve the insulation and sound insulation of buildings. A flame retardant lightweight foam exhibiting excellent tensile and impact strengths was prepared to complete the present invention.
본 발명의 목적은 물리적인 방법으로 우수한 인장강도 및 충격강도를 나타내는 난연성의 경량 발포체를 포함하는 난연성 경량 나무플라스틱을 제공하고자 한다.It is an object of the present invention to provide a flame retardant lightweight wooden plastic comprising a flame retardant lightweight foam exhibiting excellent tensile and impact strength in a physical manner.
본 발명은 상기 난연성 경량 나무플라스틱의 제조방법을 제공하고자 한다.The present invention is to provide a method for producing the flame retardant lightweight wooden plastic.
이하 첨부한 도면들을 참조하여 본 발명의 제조방법을 상세히 설명한다. 다음에 소개되는 도면들은 당업자에게 본 발명의 사상이 충분히 전달될 수 있도록 하기 위해 예로서 제공되는 것이며 과장되어 도시될 수 있다. Hereinafter, a manufacturing method of the present invention will be described in detail with reference to the accompanying drawings. The drawings introduced below are provided as examples and may be exaggerated in order to sufficiently convey the spirit of the present invention to those skilled in the art.
이때, 사용되는 기술 용어 및 과학 용어에 있어서 다른 정의가 없다면, 이 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 통상적으로 이해하고 있는 의미를 가지며, 하기의 설명 및 첨부 도면에서 본 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 설명은 생략한다. Hereinafter, the technical and scientific terms used herein will be understood by those skilled in the art without departing from the scope of the present invention. Descriptions of known functions and configurations that may be unnecessarily blurred are omitted.
본 발명은 난연성 경량 플라스틱 및 이의 제조방법에 관한 것으로, 보다 상세하게는 초임계 유체를 이용한 발포 공정을 이용하여 난연성, 경량성 및 기계적 강도가 우수한 발포체를 포함하는 난연성 경량 나무플라스틱 및 이의 제조방법을 제공한다.The present invention relates to a flame retardant lightweight plastic and a method for manufacturing the same, and more particularly to a flame retardant lightweight wooden plastic comprising a foam having excellent flame retardancy, light weight and mechanical strength by using a foaming process using a supercritical fluid. to provide.
이하 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.
본 발명은 목분 20 내지 50 중량%, 수지 40 내지 70 중량%, 및 암모늄 포스페이트 0.1 내지 40 중량%를 포함하는 수지 조성물 100 중량부에 대하여, 말레인산 무수물을 그라프트시킨 폴리올레핀계 블록 공중합체, 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체, 말레인산 무수물을 그라프트시킨 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체로부터 선택되는 1종 이상의 블록 공중합체 3 내지 15 중량부를 첨가한 수지 혼합물 내에 초임계 상태의 이산화탄소가 침투되고 배출됨으로써 형성된 다공구조를 갖는 수지 발포체를 포함하는 난연성 경량 나무플라스틱을 제공한다.The present invention relates to a polyolefin-based block copolymer grafted with maleic anhydride, based on 100 parts by weight of a resin composition comprising 20 to 50% by weight of wood powder, 40 to 70% by weight of resin, and 0.1 to 40% by weight of ammonium phosphate. Supercritical state in a resin mixture to which 3 to 15 parts by weight of at least one block copolymer selected from ethylene / butylene-styrene block copolymer and styrene-ethylene / butylene-styrene block copolymer grafted maleic anhydride are added. It provides a flame retardant lightweight wooden plastic comprising a resin foam having a porous structure formed by infiltration and discharge of carbon dioxide.
본 발명의 난연성 경량 나무플라스틱은 다공성 구조를 갖는 수지 발포체를 포함하는 것을 특징으로 하고, 상기 다공성 구조는 초임계 상태의 유체인 이산화탄소가 수지 조성물 내에 침투되고 다시 배출됨으로써 형성되는 것을 특징으로 한다.The flame-retardant lightweight wooden plastic of the present invention is characterized in that it comprises a resin foam having a porous structure, the porous structure is characterized in that the carbon dioxide in the supercritical state is formed by infiltrating into the resin composition and discharged again.
또한, 본 발명의 경량 나무플라스틱은 밀도비율이 0.5 내지 0.8 g/㎠이고, 평규 셀의 크기가 4 내지 18 ㎛인 다공성 구조를 가지며, 단위 부피당 셀의 개수가 0.1×109 내지 5.5×109 cell/㎤인 것을 특징으로 한다.In addition, the lightweight wooden plastic of the present invention has a density ratio of 0.5 to 0.8 g / ㎠, the average cell size of 4 to 18 ㎛ porous structure, the number of cells per unit volume of 0.1 × 10 9 to 5.5 × 10 9 cell /
본 발명의 난연성 경량 나무플라스틱은 하기 제조방법에 의하여 제조될 수 있다. Flame retardant lightweight wooden plastic of the present invention can be produced by the following production method.
본 발명에 있어서, 난연성 경량 나무플라스틱의 제조방법은 In the present invention, the method for producing a flame retardant lightweight wooden plastic
a) 목섬유 또는 목분 20 내지 50 중량%, 수지 50 내지 70 중량% 및 암모늄 포스페이트 0.1 내지 40 중량%를 포함하는 수지 조성물 100 중량부에 대하여 말레인산 무수물을 그라프트시킨 폴리올레핀계 블록 공중합체, 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체, 말레인산 무수물을 그라프트시킨 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체로부터 선택되는 1종 이상의 블록 공중합체 3 내지 15 중량부를 첨가한 수지 혼합물을 펠릿상으로 제조하는 단계;a) Polyolefin-based block copolymer, styrene-ethylene, grafted maleic anhydride with respect to 100 parts by weight of a resin composition comprising 20 to 50% by weight of wood fibers or wood powder, 50 to 70% by weight of resin, and 0.1 to 40% by weight of ammonium phosphate A resin mixture is prepared in pellet form by adding 3 to 15 parts by weight of at least one block copolymer selected from a butylene-styrene block copolymer and a styrene-ethylene / butylene-styrene block copolymer grafted with maleic anhydride. step;
b) 초임계 상태의 이산화탄소를 5 내지 25 Mpa의 압력에서 상기 펠릿 내부로 침투시키는 단계; 및b) penetrating supercritical carbon dioxide into the pellet at a pressure of 5 to 25 Mpa; And
c) 상기 초임계 상태의 이산화탄소가 침투된 펠릿으로부터 이산화탄소를 외부로 배출시킴으로써 다공성 구조를 형성하는 단계; 를 포함하여 제조되는 것을 특징으로 한다.c) forming a porous structure by discharging carbon dioxide to the outside from the pellets in which the carbon dioxide in the supercritical state has penetrated; Characterized in that it is prepared to include.
상기 난연성 경량 나무플라스틱은 다공 구조를 갖는 수지를 포함하고 있어 인장강도 및 충격강도이 매우 우수하다. 상기 다공 구조는 초임계 상태의 유체(Super Critical Fluid; SCF)를 상기 수지 조성물 내에 침투시키고 다시 수지 조성물 외부로 배출시킴으로서 형성된다. 상기 유체로는 이산화탄소를 사용하고, 이는 우수한 침투력과 용해성을 가지고 있어 온도 및 압력을 조절함으로써 용해도, 점도, 확산계수, 열전도도 등의 물성들의 조절이 용이한 장점이 있다. 또한 이산화탄소에 의한 공정은 인체에 무해하고 환경오염이 적어 환경 친화적이다. 상기 초임계 이산화탄소는 고분자 분자들의 공극 사이로 침투하므로 나무플라스틱의 외관을 변화시키지 않는 장점으로 본 발명에서는 아주 중요한 구성요소이다.The flame-retardant lightweight wooden plastics include a resin having a porous structure, and thus have excellent tensile strength and impact strength. The porous structure is formed by infiltrating a super critical fluid (SCF) into the resin composition and draining it out of the resin composition again. Carbon dioxide is used as the fluid, which has excellent penetrating power and solubility, thereby controlling physical properties such as solubility, viscosity, diffusion coefficient, and thermal conductivity by controlling temperature and pressure. In addition, the process by carbon dioxide is harmless to the human body and environmentally friendly due to less environmental pollution. Since the supercritical carbon dioxide penetrates through the pores of the polymer molecules, it is an important component in the present invention as it does not change the appearance of wood plastic.
본 발명의 다공구조는 4 내지 18 ㎛ 평균 셀 크기를 가지는 것을 특징으로 한다. 만약 상기 셀 크기가 4 ㎛ 미만인 경우는 경량성이 저하되어 바람직하지 않고, 18 ㎛를 초과할 경우 기계적 강도가 현저히 떨어져 본 발명에 따른 목적을 달성할 수 없는 문제점이 있다.The porous structure of the present invention is characterized by having an average cell size of 4 to 18 ㎛. If the cell size is less than 4 μm, it is not preferable to reduce the light weight, and if the cell size is more than 18 μm, the mechanical strength is remarkably low, and thus there is a problem in that the object according to the present invention cannot be achieved.
본 발명에 따른 발포체의 밀도는 0.5 내지 0.8 g/㎠인 것을 특징으로 한다. 상기 밀도가 0.5 g/㎠ 미만인 경우는 기계적 강도가 현저히 떨어지고, 0.8 g/㎠을 초과할 경우는 경량성이 저하되어 바람직하지 않다.The density of the foam according to the invention is characterized in that 0.5 to 0.8 g / ㎠. When the said density is less than 0.5 g / cm <2>, mechanical strength falls remarkably, and when it exceeds 0.8 g / cm <2>, light weight falls and it is unpreferable.
또한, 본 발명에 따른 발포체의 단위 부피당 셀의 개수는 0.1×109 내지 5.5×109 cell/㎤인 것을 특징으로 한다. 상기 셀의 밀도가 너무 크면 경량성이 저하될 수 있으며, 셀의 밀도가 너무 작으면 기계적 강도가 떨어질 수 있는 문제점이 있다.In addition, the number of cells per unit volume of the foam according to the invention is characterized in that 0.1 × 10 9 to 5.5 × 10 9 cells /
본 발명의 수지 혼합물은 목섬유 또는 목분 20 내지 50 중량%, 수지 50 내지 70 중량% 및 암모늄 포스페이트 0.1 내지 40 중량%를 포함하는 수지 조성물 100 중량부에 대하여 말레인산 무수물을 그라프트시킨 폴리올레핀계 블록 공중합체, 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체, 말레인산 무수물을 그라프트시킨 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체로부터 선택되는 1종 이상의 블록 공중합체 3 내지 15 중량부를 첨가한 수지 혼합물것을 특징으로 하고, 상기 수지 혼합물은 수지 조성물 100중량부에 대하여 실리카 0.1 내지 15 중량부를 더 포함하여 제조할 수 있다.The resin mixture of the present invention is a polyolefin-based block copolymer obtained by grafting maleic anhydride with respect to 100 parts by weight of a resin composition comprising 20 to 50% by weight of wood fibers or wood powder, 50 to 70% by weight of resin, and 0.1 to 40% by weight of ammonium phosphate. 3 to 15 parts by weight of at least one block copolymer selected from styrene-ethylene / butylene-styrene block copolymers and styrene-ethylene / butylene-styrene block copolymers grafted with maleic anhydride The resin mixture may be prepared by further comprising 0.1 to 15 parts by weight of silica with respect to 100 parts by weight of the resin composition.
본 발명에 따른 경량 나무플라스틱은 화학적인 발포체를 사용하지 않는 방법으로서, 수지 조성물을 이축압출기내에서 반응하여 펠릿상으로 제조한 후, 초임계 상태의 유체 존재하에 다공구조를 갖는 수지 발포체를 제조하는 방법으로 제조된다. The lightweight wooden plastic according to the present invention is a method that does not use a chemical foam, and reacts the resin composition in a twin screw extruder to produce pellets, and then to produce a resin foam having a porous structure in the presence of a fluid in a supercritical state. Prepared by the method.
보다 상세하게는 a) 목섬유 또는 목분 20 내지 50 중량%, 수지 50 내지 70 중량% 및 암모늄 포스페이트 0.1 내지 40 중량%를 포함하는 수지 조성물 100 중량부에 대하여 말레인산 무수물을 그라프트시킨 폴리올레핀계 블록 공중합체, 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체, 말레인산 무수물을 그라프트시킨 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체로부터 선택되는 1종 이상의 블록 공중합체 3 내지 15 중량부를 첨가한 수지 혼합물을 펠릿상으로 제조하는 단계;More specifically, a) a polyolefin-based block copolymer obtained by grafting maleic anhydride with respect to 100 parts by weight of a resin composition comprising 20 to 50% by weight of wood fibers or wood powder, 50 to 70% by weight of resin, and 0.1 to 40% by weight of ammonium phosphate. Pellet resin mixture added with 3 to 15 parts by weight of at least one block copolymer selected from styrene-ethylene / butylene-styrene block copolymer and styrene-ethylene / butylene-styrene block copolymer grafted with maleic anhydride Preparing into a phase;
b) 초임계 상태의 이산화탄소를 5 내지 25 Mpa의 압력에서 상기 펠릿 내부로 침투시키는 단계; 및b) penetrating supercritical carbon dioxide into the pellet at a pressure of 5 to 25 Mpa; And
c) 상기 초임계 상태의 이산화탄소가 침투된 펠릿으로부터 이산화탄소를 외부로 배출시킴으로써 다공성 구조를 형성하는 단계; 를 포함하는 제조방법으로 제조된다.c) forming a porous structure by discharging carbon dioxide to the outside from the pellets in which the carbon dioxide in the supercritical state has penetrated; It is prepared by a manufacturing method comprising a.
상기 수지는 폴리염화비닐(PVC), 폴리프로필렌(PP), 폴리에틸렌(PE), 폴리스티렌(PS), 폴리우레탄(PU), 폴리에틸렌테레프탈레이트-글리콜(PETG) 및 이들의 공중합체 등으로부터 선택된 하나 이상이 사용될 수 있다. 상기 공중합체는 에틸렌-프로필렌 공중합체 및 프로필렌-스티렌 공중합체 등을 예로 들 수 있다. 상기 수지는 바람직하게는 폴리프로필렌(PP)을 유용하게 사용할 수 있다.The resin is at least one selected from polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), polystyrene (PS), polyurethane (PU), polyethylene terephthalate-glycol (PETG), copolymers thereof, and the like. This can be used. Examples of the copolymer include ethylene-propylene copolymers and propylene-styrene copolymers. The resin is preferably polypropylene (PP) can be usefully used.
상기 수지 조성물은 본 발명에 따른 경량 나무플라스틱의 내충격성 향상을 위해 첨가제로서 수지 조성물 100중량부에 대하여 실리카 0.1 내지 15 중량부를 더 포함하여 제조될 수 있다. 상기 실리카는 암모늄 포스페이트와의 혼합에 의하여 본 발명의 나무플라스틱에 있어서, 나무플라스틱의 연소시 열방출 속도의 증가를 억제하고 연소의 급격한 섬락현상(flashover)을 억제하는 난연성을 더욱 증가하는 것으로 중요한 의미를 가진다. The resin composition may be prepared by further comprising 0.1 to 15 parts by weight of silica with respect to 100 parts by weight of the resin composition as an additive to improve the impact resistance of the lightweight wooden plastic according to the present invention. The silica is important in that the wood plastics of the present invention are mixed with ammonium phosphate to further suppress the increase of the heat release rate during the combustion of wood plastics and to further increase the flame retardancy which suppresses the sudden flashover of the combustion. Has
또한, 상기 첨가제는 상기 0.1 중량부 미만으로 첨가될 경우 요구하는 충격당도를 얻을 수 없으며, 상기 15 중량부를 초과할 경우 발포체의 기포가 불균일해지는 문제점이 발생할 수 있다.In addition, the additive may not obtain the required impact sugar when added in less than 0.1 parts by weight, and if it exceeds 15 parts by weight may cause a problem that the bubbles of the foam is non-uniform.
본 발명의 난연성 경량 나무플라스틱은 이축압출기내 온도가 130 내지 200℃로 제조된다.Flame retardant lightweight wooden plastic of the present invention is produced in a twin screw extruder temperature of 130 to 200 ℃.
상기 본 발명의 제조방법에 따르면 난연성 경량 나무플라스틱은 이산화탄소를 통하여 고분자 분자들의 공극 사이에 나무플라스틱의 외관을 변화시키지 않는 다공 구조를 갖는 수지 발포체를 포함하고 있어, 인장강도 및 충격강도를 만족하는 난연성 경량 나무플라스틱을 제조할 수 있다.According to the manufacturing method of the present invention, the flame-retardant lightweight wooden plastic includes a resin foam having a porous structure which does not change the appearance of the wooden plastic between the pores of the polymer molecules through carbon dioxide, and thus satisfies the tensile strength and the impact strength. Lightweight wood plastics can be produced.
본 발명에 의한 난연성 경량 나무플라스틱의 제조방법은 이산화탄소를 통하여 고분자 분자들의 공극 사이에 나무플라스틱의 외관을 변화시키지 않고 안정적이고 균일한 다공성을 갖는 수지 발포체를 제조할 수 있는 장점이 있다.The method for manufacturing a flame retardant lightweight wooden plastic according to the present invention has the advantage of producing a resin foam having stable and uniform porosity without changing the appearance of the wooden plastic between the pores of the polymer molecules through carbon dioxide.
본 발명에 의한 난연성 경량 나무플라스틱은 초임계 유체의 물리적인 동작만으로 다공구조를 형성할 수 있어 경량 나무플라스틱의 제조단가를 절감할 수 있는 장점이 있으며, 난연성 및 경량성과 함께 향상된 치수안정성 및 기계적 강도를 가지고 있어 다공성 건축 자재 등의 적용에 크게 기여할 것이다.Flame-retardant lightweight wooden plastic according to the present invention can form a porous structure only by the physical operation of the supercritical fluid has the advantage of reducing the manufacturing cost of lightweight wooden plastic, and improved dimensional stability and mechanical strength with flame retardancy and lightweight It will greatly contribute to the application of porous building materials.
도 1은 본 발명의 조성 혼합물에 있어서, 블록 공중합체의 첨가에 따른 수지 혼합물의 결정화 온도를 조사한 결과이며,
도 2는 본 발명의 조성 혼합물에 있어서, 블록 공중합체의 첨가에 따른 강도의 변화를 조사한 결과이고,
(A: 비교예 1, B: 제조예 1, C: 제조예 2, D: 제조예 3)
도 3은 본 발명의 조성 혼합물에 대한 화학적 반응을 모식화 하여 보여주는 도면이며,
도 4는 본 발명의 조성 혼합물에 있어서, 블록 공중합체의 첨가에 따른 최종압출물의 모폴로지 변화를 SEM 사진으로 확인한 결과이며,
(A: 비교예 1, B: 제조예 1, C: 제조예 2, D: 제조예 3)
도 5는 본 발명 조성 혼합물에 있어서, 블록 공중합체의 첨가에 따른 최종압출물의 셀 형태를 SEM 사진으로 확인한 결과이고,
(A: 비교예 1, B: 제조예 1, C: 제조예 2, D: 제조예 3)
도 6은 본 발명 조성 혼합물에 있어서, 블록 공중합체의 첨가에 따른 최종압출물의 셀 크기 및 단위 부피당 셀의 개수를 조사한 결과이며,
도 7은 본 발명 조성 혼합물에 있어서, 블록 공중합체의 첨가에 따른 최종압출물의 밀도비율을 조사한 결과이고,
도 8은 암모늄 포스페이트 농도에 따른 본 발명의 최종압출물의 열중량 분석(A) 및 미분 열중량 분석(B) 결과를 보여주는 것이며,
도 9는 일정량의 암모늄 포스페이트에 대하여, 실리카 농도에 따른 본 발명의 최종압출물의 열중량 분석(A) 및 미분 열중량 분석(B) 결과를 보여주는 것이고,
도 10은 암모늄 포스페이트 농도에 따른 본 발명의 최종압출물의 열방출율(㎾/㎡)을 조사한 결과를 보여주는 것이며,
도 11은 일정량의 암모늄 포스페이트에 대하여, 실리카 첨가량에 따른 본 발명의 최종압축물의 연소특성을 확인한 사진이고,
(A: 제조예 4, B: 제조예 9, C: 제조예 10)
도 12는 일정량의 암모늄 포스페이트에 대하여, 실리카 첨가량에 따른 본 발명의 난연성 경량 나무플라스틱의 셀 형태를 SEM 사진으로 확인한 결과이며,
(A: 제조예 4, B: 제조예 9, C: 제조예 10)
도 13은 본 발명에 따른 난연성 경량 나무플라스틱의 제조방법에 있어서, 발포 압력(A) 및 온도(B)에 따른 영향을 조사한 결과이다.1 is a result of examining the crystallization temperature of the resin mixture according to the addition of the block copolymer in the composition mixture of the present invention,
2 is a result of examining the change in strength according to the addition of the block copolymer in the composition mixture of the present invention,
(A: Comparative Example 1, B: Manufacturing Example 1, C: Manufacturing Example 2, D: Manufacturing Example 3)
3 is a view schematically showing the chemical reaction of the composition mixture of the present invention,
4 is a result of confirming the morphology change of the final extrudates according to the addition of the block copolymer in the composition mixture of the present invention,
(A: Comparative Example 1, B: Manufacturing Example 1, C: Manufacturing Example 2, D: Manufacturing Example 3)
5 is a result of confirming the cell form of the final extrudate according to the addition of the block copolymer in the composition mixture of the present invention,
(A: Comparative Example 1, B: Manufacturing Example 1, C: Manufacturing Example 2, D: Manufacturing Example 3)
6 is a result of examining the cell size and the number of cells per unit volume of the final extrudate according to the addition of the block copolymer in the composition mixture of the present invention,
7 is a result of examining the density ratio of the final extrudates according to the addition of the block copolymer in the composition mixture of the present invention,
Figure 8 shows the results of thermogravimetric analysis (A) and differential thermogravimetric analysis (B) of the final extrudates of the present invention according to the ammonium phosphate concentration,
9 shows the results of thermogravimetric analysis (A) and differential thermogravimetric analysis (B) of the final extrudate of the present invention according to silica concentration, for a certain amount of ammonium phosphate,
Figure 10 shows the results of the investigation of the heat release rate (㎾ / ㎡) of the final extrudates of the present invention according to the ammonium phosphate concentration,
11 is a photograph confirming the combustion characteristics of the final compressed product of the present invention according to the addition amount of silica, for a certain amount of ammonium phosphate,
(A: Production Example 4, B: Production Example 9, C: Production Example 10)
12 is a result of confirming the cell form of the flame-retardant lightweight wooden plastic of the present invention according to the addition amount of silica with respect to a certain amount of ammonium phosphate,
(A: Production Example 4, B: Production Example 9, C: Production Example 10)
13 is a result of examining the influence of the foaming pressure (A) and the temperature (B) in the method of manufacturing a flame retardant lightweight wooden plastic according to the present invention.
이하 본 발명을 하기 실시예에 의하여 더욱 상세하게 설명한다. 단, 하기 실시예는 본 발명을 예시하기 위한 것일 뿐, 본 발명의 범위가 이들만으로 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the following examples are only for illustrating the present invention, and the scope of the present invention is not limited thereto.
[실시예 1] 블록 공중합체에 따른 결정화 온도의 변화조사Example 1 Investigation of Change of Crystallization Temperature According to Block Copolymer
하기 표 1에 제시된 바와 같이, 수지 조성물 100 중량부에 대하여 목섬유 30 phr, 폴리프로필렌(PP) 70 phr, 암모늄 포스페이트(APP) 10 phr 및 말레인산 무수물을 그라프트시킨 폴리올레핀계 블록 공중합체(PP-g-MA), 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체(SEBS), 말레인산 무수물을 그라프트시킨 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체(SEBS-g-MA)로부터 선택되는 1종 이상의 블록 공중합체 각각을 10 phr로 배합한 수지 혼합물에 대한 결정화 온도 및 점도를 조사하였다.As shown in Table 1 below, polyolefin-based block copolymer (PP-g) grafted with 30 phr of wood fibers, 70 phr of polypropylene (PP), 10 phr of ammonium phosphate (APP) and maleic anhydride with respect to 100 parts by weight of the resin composition -MA), styrene-ethylene / butylene-styrene block copolymer (SEBS), at least one block selected from styrene-ethylene / butylene-styrene block copolymer (SEBS-g-MA) grafted maleic anhydride The crystallization temperature and viscosity were investigated for the resin mixture in which each copolymer was blended at 10 phr.
그 결과 하기 표 2에서도 확인할 수 있듯이, 수지 혼합물은 결정화 온도에는 변화가 없었으며, 단지 대조구인 폴리프로필렌(PP)의 결정화 온도 보다는 7 내지 15℃ 정도 낮은 온도에서 결정화가 이루어짐을 확인할 수 있었다.As a result, as can be seen in Table 2, the resin mixture was not changed in the crystallization temperature, it was confirmed that the crystallization is made at a temperature of about 7 to 15 ℃ lower than the crystallization temperature of the polypropylene (PP) which is only a control.
또한, 수지 혼합물의 180℃ 혼련온도에서 반응에서의 점도를 조사한 결과 도 1의 도면에서도 확인할 수 있듯이 블록 공중합체의 첨가에 따른 점도의 변화는 차이가 없음을 확인할 수 있었다. 이는 블록 공중합체의 첨가는 가공성에 전혀 지장을 주지 않음을 확인한 결과이기도 하다.In addition, as a result of investigating the viscosity in the reaction at 180 ° C. kneading temperature of the resin mixture, as shown in FIG. 1, it was confirmed that there was no difference in viscosity change due to addition of the block copolymer. This is also a result confirming that the addition of the block copolymer does not interfere with the processability at all.
[[ 실시예Example 2] 블록 공중합체에 따른 2] according to the block copolymer 최종압축물의Final product 충격강도의 변화조사 Investigation of change in impact strength
상기 표 1의 비교예 1 및 제조예 1 내지 3의 조성으로 제조되어진 수지 혼합물을 이축압출기에 각각 넣고 150℃ 혼련온도에서 반응하여 최종압출물을 제조하였다.The resin mixtures prepared in the compositions of Comparative Example 1 and Preparation Examples 1 to 3 of Table 1 were put in a twin screw extruder, respectively, and reacted at 150 ° C. kneading temperature to prepare a final extrudate.
상기 제조된 최종압출물의 블록 공중합체의 첨가에 따른 물성을 조사한 결과 도 2의 도면에서도 확인할 수 있듯이 블록 공중합체의 첨가는 최종압출물의 강도를 증가시킴을 확인하였고, 말레인산 무수물을 그라프트시킨 스틸렌-에틸렌/부틸렌-스틸렌 블록 공중합체(SEBS-g-MA)을 첨가한 수지 혼합물의 경우에 고강도의 최종압출물을 제조함을 확인할 수 있었다.As a result of investigating the physical properties according to the addition of the prepared block copolymer of the final extrudate, it was confirmed that the addition of the block copolymer increased the strength of the final extrudate, and the styrene-grafted maleic anhydride- In the case of the resin mixture to which the ethylene / butylene-styrene block copolymer (SEBS-g-MA) was added, it was confirmed that a final high extrudate was prepared.
[[ 실시예Example 3] 블록 공중합체에 따른 3] according to the block copolymer 최종압축물의Final product 셀 형태조사 Cell type investigation
상기 표 1의 비교예 1 및 제조예 1 내지 3의 조성으로 제조되어진 수지 혼합물을 이축압출기에 각각 넣고 150℃ 혼련온도에서 반응하여 최종압출물을 제조한 후, 16 MPa 압력하에서 블록 공중합체의 혼합에 따른 난연성 경량 나무플라스틱의 셀의 형태를 조사하였다.The resin mixtures prepared in the compositions of Comparative Example 1 and Preparation Examples 1 to 3 of Table 1 were put in a twin screw extruder, respectively, and reacted at a mixing temperature of 150 ° C. to prepare a final extrudate, followed by mixing of block copolymers under 16 MPa pressure. The cell morphology of flame-retardant lightweight wooden plastics was investigated.
그 결과 도 6 및 7의 도면에서도 확인할 수 있듯이, 경량성과 함께 우수한 기계적 강도를 가지는 발포체는 밀도비율이 0.5 내지 0.8 g/㎠, 평균 셀 크기는 4 내지 18 ㎛, 및 단위 부피당 셀의 개수가 0.1×109 내지 5.5×109 cell/㎤를 가지는 것을 확인할 수 있었다.As a result, as can be seen in the drawings of FIGS. 6 and 7, the foam having excellent mechanical strength with light weight has a density ratio of 0.5 to 0.8 g /
[[ 실시예Example 4] 암모늄 4] ammonium 포스페이트Phosphate 첨가량에 따른 According to the added amount 최종압축물의Final product 열중량Heat weight 분석 및 미분 Analyze and Differentiate 열중량Heat weight 분석 조사 Analysis
하기 표 3의 수지 혼합물(비교예 2 및 제조예 3 내지 6)을 이용하여 수지 혼합물을 이축압출기에 각각 넣고 150℃ 혼련온도에서 반응하여 최종압출물을 제조하였다.Using the resin mixture (Comparative Example 2 and Preparation Examples 3 to 6) shown in Table 3, the resin mixture was put in a twin screw extruder, respectively, and reacted at 150 ° C. kneading temperature to prepare a final extrudates.
상기 수득된 최종압출물에 대하여, 열에 대한 특성을 조사하기 위하여 열중량 분석(%) 및 미분 열중량 분석(%/min)을 조사하였다.For the final extrudate obtained, thermogravimetric analysis (%) and differential thermogravimetric analysis (% / min) were investigated to investigate the properties of heat.
그 결과 도 8의 도면에서도 확인할 수 있듯이, 암모늄 포스페이트의 첨가량이 증가함에 따라 열적 안정성 개선되는 것을 확인할 수 있었고, 암모늄 포스페이트의 첨가량이 20 phr일 때 열적 안전성이 가장 우수한 것을 확인하였다.As a result, as can be seen in the figure of Figure 8, it was confirmed that the thermal stability is improved as the amount of ammonium phosphate is increased, it was confirmed that the thermal stability is the best when the amount of the ammonium phosphate is added 20 phr.
[실시예 5] 실리카 첨가량에 따른 최종압축물의 연소특성 조사Example 5 Investigation of Combustion Characteristics of Final Compressed Product According to Silica Addition
상기 제조예 4의 결과를 바탕으로 암모늄 포스페이트의 첨가량이 20 phr일 때 실리카 첨가량에 따른 연소특성을 조사하였다.On the basis of the results of Preparation Example 4, the combustion characteristics were investigated according to the amount of silica when the amount of ammonium phosphate was 20 phr.
비교예로는 비교예 2, 제조예로는 제조예 4 및 하기 표 4의 수지 혼합물(제조예 7 내지 9)을 이축압출기에 각각 넣고 150℃ 혼련온도에서 반응하여 최종압출물을 제조하였다. As a comparative example, Comparative Example 2, and Preparation Example 4 and the resin mixture (Preparation Examples 7 to 9) of Table 4 were put into a twin screw extruder, respectively, and reacted at a mixing temperature of 150 ° C. to prepare a final extrudate.
그 결과 도 9의 도면에서도 확인할 수 있듯이, 실리카의 함량이 증가함에 따라 연소성이 저하되는 것을 확인하였다.As a result, as can be seen in the figure of Figure 9, it was confirmed that the combustibility is lowered as the content of silica increases.
상기 결과에 대한 보다 상세한 연소특성을 조사하기 위하여, 상기 제조예 4, 제조예 9 및 하기 표 5의 수지 혼합물(제조예 10)을 이용하여 점화시간(sec), 최대 열방출 속도(㎾/㎡), 평균 열방출 속도(㎾/㎡) 및 무게 감소율(g/sec)을 측정하였다.In order to investigate the more detailed combustion characteristics of the results, the ignition time (sec), the maximum heat release rate (㎾ / ㎡) using the resin mixture of Preparation Example 4, Preparation Example 9 and Table 5 (Preparation Example 10) ), Average heat release rate (mm 3 / m 2) and weight loss rate (g / sec) were measured.
그 결과 하기 표 6의 결과를 확인할 수 있듯이, 암모늄 포스페이트의 첨가량이 증가할수록 열방출 속도가 지연되는 것을 확인하였고, 암모늄 포스페이트 및 실리카의 혼합물이 가장 연소를 지연시키는 것을 확인할 수 있다. 이는 연소시 열방출 속도의 증가를 억제하여 연소의 급격한 섬락현상(flashover)을 억제하는 난연성을 증가하는 것을 확인한 결과이기도 하다.As a result, as shown in Table 6 below, it was confirmed that the heat release rate was delayed as the amount of ammonium phosphate increased, and the mixture of ammonium phosphate and silica delayed the combustion most. This is also the result of confirming that the increase in flame retardancy to suppress the sudden flashover of combustion by suppressing the increase of the heat release rate during combustion.
[[ 실시예Example 6] 난연성 경량 나무플라스틱의 발포 압력 및 온도에 따른 영향 6] Effect of foaming pressure and temperature on flame retardant lightweight wooden plastic
(1) 발포하는 압력에 따른 영향(1) Influence by the pressure of foaming
상기 제조예 10의 수지 혼합물을 이용하여 제조된 펠릿을 150℃ 온도하에서 발포 압력에 따른 난연성 경량 나무플라스틱의 변화를 조사하였다.Pellets prepared using the resin mixture of Preparation Example 10 were investigated for the change of flame-retardant lightweight wooden plastic according to the foaming pressure at 150 ℃ temperature.
상기 발포 압력은 8, 12, 16, 20 및 24 MPa으로 처리하였다.The foaming pressures were treated at 8, 12, 16, 20 and 24 MPa.
그 결과 도 13의 A의 결과에서도 확인할 수 있듯이 150℃의 온도하에서 발포 압력이 증가됨에 따라 밀도비율(g/㎠)이 감소하는 것을 확인하였다.As a result, as can be seen from the results of FIG. 13A, it was confirmed that the density ratio (g / cm 2) decreased as the foaming pressure was increased at a temperature of 150 ° C.
(2) 발포하는 온도에 따른 영향(2) Influence by the temperature of foaming
상기 제조예 10의 수지 혼합물을 이용하여 제조된 펠릿을 20 MPa 압력하에서 발포 온도에 따른 난연성 경량 나무플라스틱의 변화를 조사하였다.Pellets prepared using the resin mixture of Preparation Example 10 were investigated for the change of flame retardant lightweight wooden plastics with foaming temperature under 20 MPa pressure.
상기 발포 온도는 135, 140, 145, 150 및 155℃의 조건으로 처리하였다.The foaming temperatures were treated under conditions of 135, 140, 145, 150 and 155 ° C.
그 결과 도 13의 B의 결과에서도 확인할 수 있듯이, 20 MPa의 압력하에서 발포 온도가 증가됨에 따라 밀도비율(g/㎠)이 감소하는 것을 확인하였다.As a result, as can be seen from the result of FIG. 13B, it was confirmed that the density ratio (g / cm 2) decreased as the foaming temperature was increased under the pressure of 20 MPa.
본 발명에 따른 난연성 경량 나무플라스틱의 제조방법에 있어서, 발포 압력 및 발포 온도는 제조되는 발포체의 난연서으 경량성 및 발포체 자체의 기계적 강도를 위해 고려해야 하는 중요한 조건으로, 상기의 결과를 통하여 최적의 발포 압력 및 온도는 150℃ 온도 및 16 MPa의 압력의 조건인 것을 확인하였다.In the method for producing a flame retardant lightweight wooden plastic according to the present invention, the foaming pressure and the foaming temperature are important conditions to be considered for the flame retardancy of the foam to be produced and the mechanical strength of the foam itself. It was confirmed that foaming pressure and temperature were conditions of 150 degreeC temperature and the pressure of 16 MPa.
Claims (8)
상기 수지 조성물은 수지 조성물 100 중량부에 대하여, 실리카 0.1 내지 15 중량부를 더 포함하는 난연성 경량 나무플라스틱.The method of claim 1,
The resin composition is flame retardant lightweight wooden plastic further comprises 0.1 to 15 parts by weight of silica with respect to 100 parts by weight of the resin composition.
상기 발포체는 밀도비율이 0.5 내지 0.8 g/㎠인 난연성 경량 나무플라스틱.The method of claim 1,
The foam has a density ratio of 0.5 to 0.8 g / ㎠ flame retardant lightweight wooden plastic.
상기 발포체는 4 내지 18 ㎛ 평균 셀 크기의 다공성 구조를 가지는 난연성 경량 나무플라스틱.The method of claim 1,
The foam is flame retardant lightweight wooden plastic having a porous structure of 4 to 18 ㎛ average cell size.
상기 발포체는 단위 부피당 셀의 개수가 0.1×109 내지 5.5×109 cell/㎤인 난연성 경량 나무플라스틱.The method of claim 1,
The foam is a flame-retardant lightweight wooden plastic having a number of cells per unit volume of 0.1 × 10 9 to 5.5 × 10 9 cells / cm 3.
b) 초임계 상태의 이산화탄소를 5 내지 25 Mpa의 압력에서 상기 펠릿 내부로 침투시키는 단계; 및
c) 상기 초임계 상태의 이산화탄소가 침투된 펠릿으로부터 이산화탄소를 외부로 배출시킴으로써 다공성 구조를 형성하는 단계;
를 포함하는 난연성 경량 나무플라스틱의 제조방법.a) Polyolefin block copolymer, styrene-grafted maleic anhydride, to 100 parts by weight of a resin composition comprising 20 to 50% by weight of wood fibers or wood powder, 50 to 70% by weight of resin, and 0.1 to 40% by weight of ammonium phosphate Resin mixture was prepared in pellet form by adding 3 to 15 parts by weight of at least one block copolymer selected from ethylene / butylene-styrene block copolymer and styrene-ethylene / butylene-styrene block copolymer grafted with maleic anhydride. Doing;
b) penetrating supercritical carbon dioxide into the pellet at a pressure of 5 to 25 Mpa; And
c) forming a porous structure by discharging carbon dioxide to the outside from the pellets in which the carbon dioxide in the supercritical state has penetrated;
Flame retardant lightweight wooden plastic manufacturing method comprising a.
상기 수지 조성물은 수지 조성물 100 중량부에 대하여, 실리카 0.1 내지 15 중량부를 더 포함하는 난연성 경량 나무플라스틱의 제조방법.The method of claim 6,
The resin composition is a method for producing a flame-retardant lightweight wooden plastic further comprises 0.1 to 15 parts by weight of silica with respect to 100 parts by weight of the resin composition.
상기 이축압출기는 이축압출기내 온도는 130 내지 200℃로 설정하는 난연성 경량 나무플라스틱의 제조방법.The method of claim 6,
The twin screw extruder is a method of manufacturing a flame retardant lightweight wooden plastic in which the temperature in the twin screw extruder is set to 130 to 200 ℃.
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| KR1020100020428A KR101269050B1 (en) | 2010-03-08 | 2010-03-08 | Non-flammable light wood plastic compound and preparing thereof |
| PCT/KR2011/000576 WO2011096670A2 (en) | 2010-02-05 | 2011-01-27 | Flame-retardant lightweight plastic and a production method for the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436043A (en) * | 2013-08-20 | 2013-12-11 | 中国科学院过程工程研究所 | Heat insulating and sound insulating wood-plastic composite and preparation method thereof |
| CN110204916A (en) * | 2019-06-10 | 2019-09-06 | 重庆市久三建材有限公司 | A kind of processing method of outdoor co-extrusion Wood-plastic floor |
| CN115160721A (en) * | 2022-08-15 | 2022-10-11 | 浙江贝玛教育科技有限公司 | Composite material and preparation method and application thereof |
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| JP2006199970A (en) | 1999-04-01 | 2006-08-03 | Sekisui Chem Co Ltd | Composite foam and molded article thereof and method for producing the same |
| JP3915555B2 (en) | 2002-03-08 | 2007-05-16 | 凸版印刷株式会社 | Wood resin foam molding and decorative material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436043A (en) * | 2013-08-20 | 2013-12-11 | 中国科学院过程工程研究所 | Heat insulating and sound insulating wood-plastic composite and preparation method thereof |
| WO2015024286A1 (en) * | 2013-08-20 | 2015-02-26 | 中国科学院过程工程研究所 | Wood-plastic composite material and manufactured method thereof |
| CN110204916A (en) * | 2019-06-10 | 2019-09-06 | 重庆市久三建材有限公司 | A kind of processing method of outdoor co-extrusion Wood-plastic floor |
| CN115160721A (en) * | 2022-08-15 | 2022-10-11 | 浙江贝玛教育科技有限公司 | Composite material and preparation method and application thereof |
| CN115160721B (en) * | 2022-08-15 | 2023-08-29 | 浙江贝玛教育科技有限公司 | Composite material, preparation method and application thereof |
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