KR100598069B1 - Composition for soluble alkyd resin and stain using the same - Google Patents

Composition for soluble alkyd resin and stain using the same Download PDF

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KR100598069B1
KR100598069B1 KR1020030095228A KR20030095228A KR100598069B1 KR 100598069 B1 KR100598069 B1 KR 100598069B1 KR 1020030095228 A KR1020030095228 A KR 1020030095228A KR 20030095228 A KR20030095228 A KR 20030095228A KR 100598069 B1 KR100598069 B1 KR 100598069B1
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alkyd resin
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soluble alkyd
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한용진
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(주)캡스톤엔지니어링
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Wood Science & Technology (AREA)
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Abstract

본 발명은 탈수지방산(dehydrated fatty acid : DCOFA), 트리메틸올프로판(trimethylopropane : TMP), 이소프탈릭산(isophthalic acid : IP acid), 트리멜리틴산 안하이드라이드(trimellitic anhydride : TMA) 및 부틸셀로솔브(buthylcellosolve)로 이루어지는 에스테르 반응물과; 메틸메타크릴레이트(methy methacrylate : MMA), n-부틸메타크릴레이트(n-buthyl methacrylate : n-BMA), 부틸아크릴레이트모노머(buthyl acrylate monomer : BAM), 스티렌모노머(styrene monomer : SM), 아크릴산(acrylic acid : AA)이 포함되는 아크릴 모노머 혼합물과; 수용성을 발현시키는 pH조정제로서 트리에틸아민(triethylamine : TEA)을 3 내지 4중량%를 포함하며, 상기 에스테르 반응물과 상기 아크릴 모노머 혼합물은 약 1:0.8 내지 1:1의 중량비로 혼합되는 것을 특징으로 하는 수용성 알키드 수지 조성물을 제공한다. 본 발명에 따른 수용성 알키드 수지 조성물을 이용한 도료는 작업성과 부착성이 우수하며, 특히 SMC 소재에 도장시 도장 특성이 매우 우수하다The present invention is dehydrated fatty acid (DCOFA), trimethylopropane (TMP), isophthalic acid (IP acid), trimellitic anhydride (TMA) and butyl cellosolve an ester reactant consisting of (buthylcellosolve); Methyl methacrylate (MMA), n-butyl methacrylate (n-BMA), butyl acrylate monomer (BAM), styrene monomer (SM), acrylic acid (acrylic acid: AA) and an acrylic monomer mixture; As a pH adjuster for expressing water solubility, it comprises 3 to 4% by weight of triethylamine (TEA), wherein the ester reactant and the acrylic monomer mixture is mixed in a weight ratio of about 1: 0.8 to 1: 1 It provides a water-soluble alkyd resin composition. The paint using the water-soluble alkyd resin composition according to the present invention has excellent workability and adhesion, and in particular, excellent coating properties when painting SMC materials.

수용성 알키드 수지, 접착력, SMC 소재Water Soluble Alkyd Resin, Adhesion, SMC Material

Description

수용성 알키드 수지 조성물 및 이를 이용한 도료{Composition for soluble alkyd resin and stain using the same}Composition for soluble alkyd resin and stain using the same

본 발명은 수용성 알키드 수지 조성물 및 이를 이용한 도료에 관한 것으로, 작업성과 부착력이 향상되고 특히 SMC 소재에 도포시 도장 특성이 우수한 도료용 알키드 수지 조성물에 관한 것이다.The present invention relates to a water-soluble alkyd resin composition and a coating using the same, and to an alkyd resin composition for paints, which has improved workability and adhesion, and in particular, excellent coating properties when applied to SMC materials.

알키드 수지는 다가(多價)알코올과 다가산의 축합에 의해 생기는 고분자 물질이다. 알키드수지는 3가 이상의 알코올성분과 건성유(乾性油)를 함유하므로 도장 전에는 선상(線狀)의 고분자이나, 도장 후에는 가열공정의 일예로 에나멜링(燒付)공정에 의해 또는 통풍에 의해 가교결합(架橋結合)을 갖는 3차원 고분자가 되어, 내수성(耐水性) 및 내약품성이 강해진다. 따라서 알키드 수지는 그 자체로 도료로 사용하거나 요소수지, 멜라민 등과 혼합하여 굴곡성 도료로서 금속구조물 예를들면 건축물, 선박, 철교 등에 널리 사용된다. Alkyd resin is a high molecular material produced by condensation of polyhydric alcohol and polyacid. Alkyd resins contain at least trihydric alcohols and dry oils, so they are cross-linked by an enameling process or by ventilation as an example of a heating polymer before coating, or as an example of heating after coating. It becomes the three-dimensional polymer which has a bridge, and water resistance and chemical-resistance become strong. Therefore, alkyd resins are used as paints themselves or mixed with urea resins, melamines, etc., and are widely used as flexible paints for metal structures such as buildings, ships, and steel bridges.

알키드 수지가 지방산에 의해 개질될 때, 상기 알키드 수지에 대한 트리글리세리드(triglyceride)로 환산한 지방산의 함유량(wt%)을 유장(oil length)이라 한다. 유장이 45% 이하인 것을 단유성, 45 내지 55%인 것을 중유성, 55 내지 65%인 것을 장유성, 65% 이상인 것을 초장유성이라 한다. When the alkyd resin is modified with fatty acids, the content (wt%) of fatty acids converted into triglycerides relative to the alkyd resin is called an oil length. Whey is less than 45% milky oil, 45-55% is heavy oil, 55-65% is oily oil, 65% or more is called ultra long oil.

일반적인 도료 제품의 경우 장유성 알키드 수지가 안료와 함께 사용되어, 원목 또는 무늬목 등 굴골성 소재에 착색되어 무늬결을 선명하게 한다. 이와 같은 종래의 도료 제품은 도장이 완료된 후 충분히 건조시키지 않으면 접착 불량이 발생되는 문제점이 있다. In general paint products, oleaginous alkyd resin is used together with pigments, and it is colored on bone materials such as solid wood or veneer to sharpen the texture. Such a conventional paint product has a problem in that the adhesion failure occurs if not sufficiently dried after the painting is completed.

한편, 박판형 성형복합재인 SMC(sheet molding compound) 소재는 이를 성형하기 위해서 강화플라스틱(FRP; fiber glass reinforced plastics) 등의 성형공정에서 필요한 프리믹스(pre-mix)단계가 필요없어 덩어리형 성형복합재인 BMC(bulk molding compound)의 단점인 유리섬유의 훼손을 줄일 수 있는 장점이 있다. 또한, SMC(sheet molding compound) 소재는 일정한 길이로 절단된 유리섬유들이 이동판(carrier film)을 따라 공급되는 수지혼합물에 분포되고, 일정한 길이로 절단된 유리섬유들이 혼합된 수지혼합물이 압축롤러를 지나면서 열을 받고 경화되어 박판형태로 만들어지므로 생산성이 우수하여 다양한 분야에 널리 사용되고 있다. On the other hand, the sheet molding compound (SMC), which is a thin sheet molding composite material, does not require a pre-mix step required in a molding process such as fiber glass reinforced plastics (FRP) in order to mold the BMC, which is a bulk molding composite material. (Bulk molding compound) has the advantage of reducing the damage of the glass fiber, which is a disadvantage. In addition, the sheet molding compound (SMC) material is distributed in a resin mixture in which glass fibers cut to a certain length are supplied along a carrier film, and the resin mixture in which glass fibers cut to a certain length is mixed with a compression roller. As it is heated and hardened, it is made into a thin plate shape, and thus it is widely used in various fields due to its excellent productivity.

그런데, 종래의 알키드 수지계 도료 제품은 SMC 소재에 도장하는 경우 부착성이 아주 불량하며, 작업성이 좋지 못하여 SMC 소재의 활용을 제한시키는 문제점이 있었다.By the way, the conventional alkyd resin-based paint product has a problem in that the adhesion is very poor when coating on the SMC material, the workability is not good, limiting the utilization of the SMC material.

따라서, 본 발명의 목적은 종래의 알키드 수지계 도료 제품의 단점을 극복하고 부착성 및 칼라 안정성을 개선한 새로운 도료용 조성물을 제공하는 것이다.It is therefore an object of the present invention to provide a new coating composition which overcomes the disadvantages of conventional alkyd resin based paint products and improves adhesion and color stability.

또한, 본 발명의 다른 목적은 작업성이 뛰어나며 온도 변화 및 기타 환경 변화에도 부착성이 변하지 않는 SMC 소재용 도료 조성물을 제공하는 것이다.In addition, another object of the present invention is to provide a coating composition for SMC material which is excellent in workability and does not change adhesion even with temperature changes and other environmental changes.

상기 목적을 달성하기 위하여 본 발명은 탈수지방산(dehydrated fatty acid : DCOFA), 트리메틸올프로판(trimethylolpropane : TMP), 이소프탈릭산(isophthalic acid : IP acid), 트리멜리틴산 안하이드라이드(trimellitic anhydride : TMA) 및 부틸셀로솔브(buthylcellosolve)로 이루어지는 에스테르 반응물과; 메틸메타크릴레이트(methyl methacrylate : MMA), n-부틸메타크릴레이트(n-buthyl methacrylate : n-BMA), 부틸아크릴레이트모노머(buthyl acrylate monomer : BAM), 스티렌모노머(styrene monomer : SM), 아크릴산(acrylic acid : AA)이 포함되는 아크릴 모노머 혼합물과; 수용성을 발현시키는 pH조정제로서 트리에틸아민(triethylamine : TEA)을 3 내지 4중량%로 구성되며, 상기 에스테르 반응물과 상기 아크릴 모노머 혼합물은 중량비로 약 1:0.8 내지 1:1 의 비율로 혼합되는 것을 특징으로 하는 수용성 알키드 수지 조성물을 제공한다.In order to achieve the above object, the present invention provides a dehydrated fatty acid (DCOFA), trimethylolpropane (TMP), isophthalic acid (IP acid), trimellitic anhydride (TMA) ) And an ester reactant consisting of butyl cellosolve; Methyl methacrylate (MMA), n-butyl methacrylate (n-BMA), butyl acrylate monomer (BAM), styrene monomer (SM), acrylic acid (acrylic acid: AA) and an acrylic monomer mixture; As a pH adjuster for expressing water solubility, triethylamine (TEA) is composed of 3 to 4% by weight, and the ester reactant and the acrylic monomer mixture are mixed in a ratio of about 1: 0.8 to 1: 1 by weight. The water-soluble alkyd resin composition is provided.

상기 수용성 알키드 수지 조성물은 색상 발현을 위한 무독성 안료와 혼합되어 도료로 사용될 수 있으며, 작업성이 뛰어날 뿐만 아니라 도장이 완료된 후에도 여러가지 환경변화에 부착성이 열화되지 않는 우수한 도장특성을 갖는다 The water-soluble alkyd resin composition may be mixed with a non-toxic pigment for color development and used as a paint. The water-soluble alkyd resin composition not only has excellent workability but also has excellent coating properties that do not degrade adhesion to various environmental changes even after painting is completed.

본 발명에 따른 수용성 알키드 수지 조성물의 각 성분은 다음과 같다.Each component of the water-soluble alkyd resin composition according to the present invention is as follows.

에스테르 반응물은 탈수지방산(dehydrated fatty acid : DCOFA) 20 내지 30중량%, 트리메틸올프로판(trimethylolpropane : TMP) 15 내지 25중량%, 이소프탈릭산(isophthalic acid : IP acid) 15 내지 20중량%, 트리멜리틴산 안하이드라이드(trimellitic anhydride : TMA) 3 내지 7중량% 및 부틸셀로솔브(buthyl cellosolve) 30 내지 35 중량%로 이루어진다.The ester reactant is 20-30% by weight of dehydrated fatty acid (DCOFA), 15-25% by weight of trimethylolpropane (TMP), 15-20% by weight of isophthalic acid (IP acid), trimellis It consists of 3-7 wt% of trimellitic anhydride (TMA) and 30-35 wt% of butyl cellosolve.

에스테르 반응물에 첨가제로 아크릴 모노머를 혼합한다. 아크릴 모노머로서 혼합되는 첨가제로는 메틸메타크릴레이트(methyl methacrylate : MMA), n-부틸메타크릴레이트(n-buthyl methacrylate : n-BMA), 부틸아크릴레이트모노머(buthyl acrylate monomer : BAM), 스티렌모노머(styrene monomer : SM), 아크릴산(acrylic acid : AA) 등이 포함된다.The acrylic monomer is mixed as an additive to the ester reactant. As an additive mixed as an acrylic monomer, methyl methacrylate (MMA), n-butyl methacrylate (n-BMA), butyl acrylate monomer (BAM), and styrene monomer (styrene monomer: SM), acrylic acid (AA), and the like.

수용성 알키드 수지는 다음과 같은 방법에 의하여 제조한다.The water-soluble alkyd resin is prepared by the following method.

먼저 에스테르 반응물을 준비하기 위하여 탈수지방산(dehydrated fatty acid : DCOFA) 20 내지 30중량%, 트리메틸올프로판(trimethylolpropane : TMP) 15 내지 25중량%, 이소프탈릭산(isophthalic acid : IP acid) 15 내지 20중량%을 칭량한 후 혼합하여 160 내지 240℃의 온도 범위에서 3 내지 7시간 동안 유지시킨다. First, to prepare an ester reactant, 20 to 30% by weight of dehydrated fatty acid (DCOFA), 15 to 25% by weight of trimethylolpropane (TMP), and 15 to 20% by weight of isophthalic acid (IP acid) The% is weighed and mixed to maintain 3-7 hours in the temperature range of 160-240 ° C.

그 다음, 트리멜리틴산 안하이드라이드(trimellitic anhydride : TMA) 3 내지 7중량%를 첨가하여 약 170℃ 정도의 온도에서 유지시킨 후, 다시 부틸셀로솔브(buthylcellosolve) 30 내지 35 중량%를 첨가하여 적절히 혼합한다.Then, 3 to 7% by weight of trimellitic anhydride (TMA) was added and maintained at a temperature of about 170 ° C, and then 30 to 35% by weight of butyl cellosolve was added. Mix properly.

이렇게 하여 완성된 에스테르 반응물에 첨가제로 아크릴 모노머를 혼합한다.In this way, the acrylic monomer is mixed as an additive to the completed ester reactant.

아크릴 모노머로서 혼합되는 첨가제로 메틸메타크릴레이트(methyl methacrylate : MMA), n-부틸메타크릴레이트(n-buthyl methacrylate : n-BMA), 부틸아크릴레이트모노머(buthyl acrylate monomer : BAM), 스티렌모노머(styrene monomer : SM), 아크릴산(acrylic acid : AA) 혼합물을 상기 에스테르 반응물과 약 1:0.8 내지 1:1로 혼합한다.Methyl methacrylate (MMA), n-butyl methacrylate (n-BMA), butyl acrylate monomer (BAM), styrene monomer A mixture of styrene monomer (SM) and acrylic acid (AA) is mixed with the ester reactant at about 1: 0.8 to 1: 1.

이때 상기 아크릴 모노머 혼합물을 한꺼번에 혼합하기 보다는 한가지 성분씩 차례로 천천히 혼합하는 것이 바람직하다. 이와 같은 혼합과정을 약 3시간에 걸쳐 수행하고, 다시 약 160℃ 정도의 온도에서 4시간 정도 혼합물을 유지한다. 이 과정에서 개시제로서 소량의 디티부틸퍼옥시오살레이트(di-t-butyl peroxyoxalate : DTBPO)를 혼합할 수도 있다.At this time, it is preferable to slowly mix one by one component rather than mixing the acrylic monomer mixture at once. This mixing process is carried out over about 3 hours, and again maintained for about 4 hours at a temperature of about 160 ℃. In this process, a small amount of di-t-butyl peroxyoxalate (DTBPO) may be mixed as an initiator.

에스테르 반응물과 아크릴모노머 혼합물의 혼합이 완전히 이루어지면, 여기에 트리에틸아민(triethylamine : TEA)을 3 내지 4중량%로 혼합하여 중화시켜 수용성을 갖도록 한다. 최종적으로 부틸셀로솔브(buthylcellosolve)를 용제로서 적당량 첨가하여 수용성 알키드 수지를 완성한다.When the mixture of the ester reactant and the acrylic monomer is completely mixed, triethylamine (TEA) is mixed with 3 to 4% by weight and neutralized to have water solubility. Finally, an appropriate amount of butyl cellosolve is added as a solvent to complete the water-soluble alkyd resin.

준비된 수용성 알키드 수지는 색상을 부여하기 위하여 각종 색상을 발현시키는 안료와 배합하여 페이스트를 준비한다.The prepared water-soluble alkyd resin is prepared by combining with a pigment expressing various colors to impart color.

수지와 안료의 배합비율은 수지 50 내지 65중량%와 안료 35 내지 50중량%가 적당하다. 수용성 알키드 수지와 각 색상별 무독성 안료를 상기 비율에 따라 혼합하고, 초기 속도 1000RPM으로 30분간 1차 믹싱후, 다시 분산기를 사용하여 입도(연화도) 7㎛ 이상이 되도록 분산시켜 색상이 발현된 수용성 알키드 수지 페이스트를 제조한다.As for the compounding ratio of resin and pigment, 50-65 weight% of resin and 35-50 weight% of pigment are suitable. The water-soluble alkyd resin and the non-toxic pigment for each color are mixed according to the above ratio, and after primary mixing for 30 minutes at an initial speed of 1000 RPM, it is dispersed again to a particle size (softness) of 7 μm or more using a disperser and water-soluble in color. Alkyd resin pastes are prepared.

원하는 색상의 도료를 만들기 위해서는 기준비된 각종 색상의 페이스트를 적당하게 혼합하여 여러가지 색상이 발현되도록 할 수 있다.In order to make a paint of a desired color, various colors can be expressed by appropriately mixing pastes of various colors prepared in a standard manner.

본 발명에 따른 수용성 알키드 수지 조성물에 있어서 에스테르 반응물 및 추가로 첨가되는 용제 성분은 도료의 작업성을 유지시키고, 아크릴 모노머 성분은 도료의 부착력을 향상시키는 역할을 한다.In the water-soluble alkyd resin composition according to the present invention, the ester reactant and the solvent component added further maintain the workability of the paint, and the acrylic monomer component serves to improve the adhesion of the paint.

즉, 상기 에스테르 반응물 및 용제로 인하여 도료를 피도장체에 스프레이나 기타 도구를 이용하여 도장할 경우 도료 성분이 쉽게 기화되는 것이 방지되고, 와이핑(wiping) 작업이 용이해진다. 이와 더불어 도장을 마친 도료 성분은 아크릴 모노머의 결합력으로 인하여 피도장체와의 부착이 강화되 온도 변화에 따른 충격이나 습도 변화, 기타 환경 변화에도 도장된 도료가 벗겨지지 않도록 한다.That is, due to the ester reactants and solvents, when the paint is applied to the coating using spray or other tools, the paint component is easily prevented from vaporizing, and the wiping operation is easy. In addition, the coating component of the coating is strengthened adhesion to the object to be coated due to the bonding strength of the acrylic monomer, so that the painted paint does not peel off even under the impact of temperature changes, humidity changes, or other environmental changes.

뿐만 아니라, 일반적인 도료들과 달리 본 발명에 따른 조성물을 사용한 도료는 건조가 충분치 않을 경우에도 접착력이 양호하며 다른 도료 성분을 추가로 도포하여도 그 접착력이 유지되었다. In addition, unlike general paints, the paint using the composition according to the present invention has good adhesion even when the drying is not sufficient, and the adhesion was maintained even if additional paint ingredients were additionally applied.

본 발명에 따른 수용성 알키드 수지 조성물을 이용하여 SMC 소재에 도장하는 과정을 설명하면 다음과 같다.Referring to the process of painting the SMC material using a water-soluble alkyd resin composition according to the present invention.

먼저 각종 색상이 발현된 수용성 알키드 수지 페이스트를 혼합하여 원하는 색상으로 준비한다. 이렇게 준비된 알키드 수지 페이스트 10 내지 15중량%와 용제 30 내지 35중량%와 기타 도장 특성을 유지하기 위한 소량의 첨가제를 혼합하여 페이스트를 준비한다. 이러한 색상이 발현된 페이스트를 투명도료(안료를 혼합하지 않은 투명한 수용성 알키드 수지)와 혼합하여 최종적인 도료 제품을 준비한다. First, a water-soluble alkyd resin paste in which various colors are expressed is mixed to prepare a desired color. The paste is prepared by mixing 10-15 wt% of the alkyd resin paste thus prepared, 30-35 wt% of the solvent, and a small amount of additive to maintain other coating properties. The paste having such a color is mixed with a transparent paint (a transparent water-soluble alkyd resin with no pigment) to prepare a final paint product.

상기 용제로는 지방성 탄화수소화합물 또는 시클로파라핀계 탄화수소화합물이 사용되며, 상기 첨가제로는 프로필렌 글리콜, 2,2,4-트리메틸-1,3-펜탄디올모노이소부틸레이트(2,2,4-trimethyl-1,3-pentanediolmonoisobutyrate), 기타 La, Ce, Zr, Mn, Ca, Al, Zn 등이 사용된다.As the solvent, an aliphatic hydrocarbon compound or a cycloparaffinic hydrocarbon compound is used, and as the additive, propylene glycol, 2,2,4-trimethyl-1,3-pentanediol monoisobutylate (2,2,4-trimethyl -1,3-pentanediolmonoisobutyrate) and other La, Ce, Zr, Mn, Ca, Al, Zn and the like are used.

투명도료에 혼합되는 상기 페이스트의 함량은 와이핑용은 30 내지 50중량%, 스프레이용은 5 내지 15중량%가 적당하다.The content of the paste mixed in the transparent paint is 30 to 50% by weight for wiping, 5 to 15% by weight for spraying.

상기 과정에 의하여 제조된 최종 도료를 SMC 소재에 붓이나 스프레이를 이용하여 도장한 다음, 헝겊 등을 사용하여 와이핑한 후, 약 60℃에서 10 내지 30 분 정도 건조시킨다. 마지막으로 보호층 및 광택층의 역할을 하는 상도 도장으로서 아크릴 우레탄 투명도료를 도장하고 나면, SMC 소재 표면에 도료의 부착성 및 경도가 우수하고 색상이 뛰어난 도장이 완성된다. The final coating prepared by the above process is coated on a SMC material using a brush or spray, and then wiped using a cloth or the like, and then dried at about 60 ° C. for 10 to 30 minutes. Finally, after the acrylic urethane transparent paint is applied as a top coat, which serves as a protective layer and a gloss layer, the paint has excellent adhesion and hardness and excellent color on the surface of the SMC material.

이와 같이 도장이 이루어진 SMC 소재에서 도장된 물질의 특성을 알아보기 위하여 다음과 같은 테스트를 실시하였다.Thus, the following tests were conducted to find out the characteristics of the painted material in the SMC material.

먼저, 탈수지방산(dehydrated fatty acid : DCOFA) 25중량%, 트리메틸올프로판(trimethylolpropane : TMP) 20중량%, 이소프탈릭산(isophthalic acid : IP acid) 17중량%, 트리멜리틴산 안하이드라이드(trimellitic anhydride : TMA) 5중량%, 부틸셀로솔브(buthylcellosolve) 33 중량%를 가하여 에스테르 반응물을 준비하였다. 준비된 에스테르 반응물 45중량%에 메틸메타크릴레이트(methyl methacrylate : MMA) 10중량%, n-부틸메타크릴레이트(n-buthyl methacrylate : n-BMA) 10중량%, 부틸아크릴레이트모노머(buthyl acrylate monomer : BAM) 10 중량%, 스티렌모노머(styrene monomer : SM) 15중량%, 아크릴산(acrylic acid : AA) 4%, 트리에틸아민(triethylamine : TEA)을 3중량% 및 부틸셀로솔브(buthylcellosolve)를 적당량 혼합하여 수용성 알키드 수지를 제조하였고, 다시 안료를 혼합하여 페이스트를 준비하였다. 여기에 적당량의 용제와 기타 첨가제를 혼합한 후 투명도료와 최종적으로 혼합하여 SMC 판재 표면에 도장을 실시하였다.First, 25% by weight of dehydrated fatty acid (DCOFA), 20% by weight of trimethylolpropane (TMP), 17% by weight of isophthalic acid (IP acid), trimellitic anhydride (trimellitic anhydride) : 5% by weight of TMA) and 33% by weight of butyl cellosolve were added to prepare an ester reactant. 45 wt% of the prepared ester reactants 10 wt% of methyl methacrylate (methyl methacrylate: MMA), 10 wt% of n-buthyl methacrylate (n-BMA), butyl acrylate monomer (buthyl acrylate monomer: BAM) 10% by weight, styrene monomer (SM) 15% by weight, acrylic acid (AA) 4%, triethylamine (TEA) 3% by weight and butyl cellosolve (buthylcellosolve) By mixing, a water-soluble alkyd resin was prepared, and the pigment was mixed again to prepare a paste. After mixing an appropriate amount of solvent and other additives, and finally mixed with a transparent paint was applied to the surface of the SMC plate.

앞서 설명된 방법에 의하여 도장이 이루어진 제품을 저온과 고온에서 일정 시간을 반복적으로 유지하며 크랙이 발생되었는지를 확인하였다. 저온은 -20℃, 고온은 80℃로 설정하였으며, 저온 및 고온에서 각각 2시간 동안을 유지하고, 저온과 고온을 유지하는 것을 1 사이클로 하여 총 6사이클을 반복한 후 도장된 표면에 크랙이 발생되었는지를 확인한 결과 크랙이 전혀 발생되지 않았다. 따라서 본 발명에 따른 조성물로 제조된 도료의 경우 심한 열충격에도 부착성이 매우 양호한 것을 알 수 있다.By the method described above it was confirmed that the crack was generated by repeatedly maintaining a predetermined time at a low temperature and a high temperature of the product is coated. The low temperature was set at -20 ° C and the high temperature at 80 ° C, and it was maintained for 2 hours at low temperature and high temperature, and 6 cycles were repeated after maintaining a low temperature and high temperature for 1 cycle. As a result of checking, no crack occurred. Therefore, in the case of the paint prepared with the composition according to the present invention it can be seen that the adhesion is very good even in severe thermal shock.

이상에서 살펴본 바와 같이 본 발명에 따른 수용성 알키드 수지 조성물은 도료로서의 작업성 및 부착력이 매우 우수하다. 특히 도장 과정에서 도료 성분이 쉽게 기화되는 것이 방지되고, 와이핑(wipping) 작업이 용이해진다. 또한 도장을 마친 후에는 피도장체와의 부착이 강화되어 온도 변화에 따른 충격이나 습도 변화, 기타 환경 변화에도 도료가 벗겨지지 않는다. 뿐만 아니라, 일반적인 도료들과 달리 본 발명에 따른 조성물을 사용한 도료는 건조가 충분치 않을 경우에도 접착력이 양호하며 다른 도료 성분을 추가로 도포하여도 그 접착력이 유지된다. 따라서, 목재 뿐만 아니라 SMC 등의 소재에 우수한 도장 효과를 가져올 수 있다.As described above, the water-soluble alkyd resin composition according to the present invention is very excellent in workability and adhesion as a paint. In particular, the paint component is prevented from easily evaporating during the painting process, and the wiping operation becomes easy. In addition, after painting, the adhesion to the coated object is strengthened, so that the paint does not peel off even when the impact, temperature, or other environmental changes occur due to temperature changes. In addition, unlike general paints, the paint using the composition according to the present invention has good adhesion even when the drying is not sufficient, and the adhesion is maintained even if additional coating components are additionally applied. Therefore, it is possible to bring excellent coating effect not only on wood but also on materials such as SMC.

Claims (3)

탈수지방산(dehydrated fatty acid : DCOFA) 20 내지 30중량%, 트리메틸올프로판(trimethylolpropane : TMP) 15 내지 25중량%, 이소프탈릭산(isophthalic acid : IP acid) 15 내지 20중량%, 트리멜리틴산 안하이드라이드(trimellitic anhydride : TMA) 3 내지 7중량% 및 부틸셀로솔브(buthylcellosolve) 30 내지 35중량%로 이루어지는 에스테르 반응물과; 20-30% by weight of dehydrated fatty acid (DCOFA), 15-25% by weight of trimethylolpropane (TMP), 15-20% by weight of isophthalic acid (IP acid), trimellitic acid anhydride An ester reactant consisting of 3 to 7 wt% of a trimellitic anhydride (TMA) and 30 to 35 wt% of butyl cellosolve; 메틸메타크릴레이트(methyl methacrylate : MMA), n-부틸메타크릴레이트(n-buthyl methacrylate : n-BMA), 부틸아크릴레이트모노머(buthyl acrylate monomer : BAM), 스티렌모노머(styrene monomer : SM), 아크릴산(acrylic acid : AA)이 포함되는 아크릴 모노머 혼합물과; Methyl methacrylate (MMA), n-butyl methacrylate (n-BMA), butyl acrylate monomer (BAM), styrene monomer (SM), acrylic acid (acrylic acid: AA) and an acrylic monomer mixture; 수용성을 발현시키는 pH조정제로서 트리에틸아민(triethylamine : TEA)을 3 내지 4중량%로 구성되며, PH adjuster that expresses water solubility is composed of 3 to 4% by weight of triethylamine (TEA), 상기 에스테르 반응물과 상기 아크릴 모노머 혼합물은 중량비로 약 1:0.8 내지 1:1 의 비율로 혼합되는 것을 특징으로 하는 수용성 알키드 수지 조성물.Wherein said ester reactant and said acrylic monomer mixture are mixed in a weight ratio of about 1: 0.8 to 1: 1. 삭제delete 제 1 항에 의한 수용성 알키드 수지 조성물 50 내지 65중량%와 색상 발현을 위한 무독성 안료 35 내지 50중량%를 혼합하여 제조되는 도료. A paint prepared by mixing 50 to 65% by weight of the water-soluble alkyd resin composition according to claim 1 with 35 to 50% by weight of a non-toxic pigment for color development.
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JPH04130112A (en) * 1990-09-20 1992-05-01 Hitachi Chem Co Ltd Production of vinylated alkyd resin and coating composition
JPH08283658A (en) * 1995-04-14 1996-10-29 Lion Corp Water-soluble alkyd resin composition
JPH09104742A (en) * 1995-10-11 1997-04-22 Dainippon Ink & Chem Inc Production of water-base alkyd resin
KR19990060699A (en) * 1997-12-31 1999-07-26 김충세 Water soluble alkyd resin and paint composition containing same
KR20020048663A (en) * 2000-12-18 2002-06-24 김장연 A manufacturing method of modified alkyd resin and a wood seeling paint using the alkyd resin

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* Cited by examiner, † Cited by third party
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JPH04130112A (en) * 1990-09-20 1992-05-01 Hitachi Chem Co Ltd Production of vinylated alkyd resin and coating composition
JPH08283658A (en) * 1995-04-14 1996-10-29 Lion Corp Water-soluble alkyd resin composition
JPH09104742A (en) * 1995-10-11 1997-04-22 Dainippon Ink & Chem Inc Production of water-base alkyd resin
KR19990060699A (en) * 1997-12-31 1999-07-26 김충세 Water soluble alkyd resin and paint composition containing same
KR20020048663A (en) * 2000-12-18 2002-06-24 김장연 A manufacturing method of modified alkyd resin and a wood seeling paint using the alkyd resin

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