KR101262145B1 - A asphalt mixture using asphalt and sbs, manufacture method - Google Patents

A asphalt mixture using asphalt and sbs, manufacture method Download PDF

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KR101262145B1
KR101262145B1 KR1020110092907A KR20110092907A KR101262145B1 KR 101262145 B1 KR101262145 B1 KR 101262145B1 KR 1020110092907 A KR1020110092907 A KR 1020110092907A KR 20110092907 A KR20110092907 A KR 20110092907A KR 101262145 B1 KR101262145 B1 KR 101262145B1
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김병채
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김병채
주식회사 포이닉스
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L57/00—Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C08L57/02—Copolymers of mineral oil hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/32—Properties characterising the ingredient of the composition containing low molecular weight liquid component
    • C08L2207/322—Liquid component is processing oil
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
    • C08L2555/80—Macromolecular constituents

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Abstract

본 발명은 에스비에스가 혼합된 아스팔트 개질제 및 개질제 제조방법에 관한 것이다.
이러한 본 발명 아스팔트 개질제는, 아스팔트 45~70중량%와, 중량평균 분자량 50,000 ~ 150,000의 SBS 10~25중량%와, 중량평균 분자량 200,000 ~ 250,000의 SBS 5~20중량%와, 중량평균 분자량 250,000 ~ 350,000의 래디알(Radial) 타입 SBS 5~20중량%와, 프로세스 오일 1~10중량%와, 석유수지 5~15중량%와, 산화방지제 0.1~1중량%가 혼합된 것을 특징으로 한다.The present invention relates to an asphalt modifier mixed with esbis and a process for producing the modifier.
The asphalt modifier of the present invention comprises 45 to 70 wt% of asphalt, 10 to 25 wt% of SBS having a weight average molecular weight of 50,000 to 150,000, 5 to 20 wt% of SBS having a weight average molecular weight of 200,000 to 250,000, 5 to 20% by weight of a radial type SBS of 350,000, 1 to 10% by weight of a process oil, 5 to 15% by weight of a petroleum resin and 0.1 to 1% by weight of an antioxidant.

Description

아스팔트와 에스비에스가 혼합된 아스팔트 개질제 및 개질제 제조방법{A ASPHALT MIXTURE USING ASPHALT AND SBS, MANUFACTURE METHOD}[0001] ASPHALT MIXTURE USING ASPHALT AND SBS, MANUFACTURE METHOD [0002]

본 발명은 아스팔트 개질제에 관한 것으로서, 더욱 상세하게는 아스콘 혼합재료인 아스팔트 개질제의 용해성 등과 같은 기능성을 향상시키기 위한 개질제 조성물 및 이를 이용한 아스팔트 개질제 제조방법에 관한 것이다.
The present invention relates to an asphalt modifier, and more particularly, to a modifier composition for improving functionality such as solubility of an asphalt modifier as an asphalt mixed material and a method for producing an asphalt modifier using the modifier composition.

일반적으로, 도로포장에 널리 이용되는 포장재료인 아스콘은 아스팔트 시멘트와 골재와의 혼합물로서, 이들을 가열하여 제조하는 것이기 때문에 가열 아스팔트 혼합물(hot mix asphalt)이라고 불리우며, 또는 아스팔트 시멘트가 골재와 결합하여 제조되는 것이기 때문에 아스팔트 바인더(asphalt binder)라고도 불리운다.Generally, ascon, a widely used packaging material for road pavement, is a mixture of asphalt cement and aggregate and is called a hot mix asphalt because it is produced by heating them, or the asphalt cement is combined with aggregate It is also called an asphalt binder.

이러한 아스팔트로 포장된 도로는 시공 후 중차량의 통행과 기후조건 및 교통환경의 변화로 인해 균열, 소성변형 및 박리현상 등이 빈번하게 발생되어 도로의 수명이 단축되고 있다. 특히, 소성변형은 아스팔트 포장도로에서 가장 심각한 문제로서, 외기의 온도변화로 인해서나 교통량의 급증, 차량의 중량화 및 대형화 추세에 따라 소성변형도 더욱 심화되고 있다. 더구나, 도로의 온도가 상승하는 하절기에 중차량의 통행이 빈번한 지역에서는 소성변형의 발생으로 인해 도로로서의 기능을 상실하게 된다.Asphalt paved roads are frequently shortened due to frequent cracks, plastic deformation, and peeling due to traffic, weather conditions and traffic environment during construction. Especially, plastic deformation is the most serious problem in asphalt pavement, and the plastic deformation is getting worse due to the sudden increase of traffic volume due to the temperature change of the outside air, the weight of the vehicle, and the tendency to increase in size. In addition, in the summer when the road temperature is rising, traffic in the middle of the road is frequently lost, resulting in plastic deformation.

따라서, 양질의 포장체를 구성하기 위한 새로운 소재개발이 절실히 요구되었다. 이에 스티렌-부타디엔 라텍스를 아스팔트 개질제로 사용하여 소성변형에 대한 저항성을 개선하고자 하였으나, 이들 라텍스는 겔 함량이 과다하여 아스팔트 개질제로 사용시 용해성이 나빠 충분한 개질효과를 발휘할 수 없는 문제점이 있다.Therefore, there has been an urgent need to develop new materials for constructing a good quality package. However, these latexes have a problem in that they are not soluble enough to exhibit a sufficient modifying effect when used as an asphalt modifier due to excessive gel content of the latex.

한편, 최근에는 이러한 종래 아스팔트 개질제의 문제점을 개선하기 위해 SBS(Styrene Butadiene Styrene)가 혼합된 기술이 적용되고 있으나, 소량생산이 어렵고 용해성이 저하되는 문제점이 있었다.
Meanwhile, in recent years, a technique of mixing SBS (Styrene Butadiene Styrene) has been applied to improve the problem of the conventional asphalt modifier, but it has been difficult to produce a small amount of the asphalt modifier and the solubility thereof is lowered.

본 발명은 상기한 종래 아스팔트 개질제의 문제점을 개선하기 위한 것으로서, 분자량을 각기 달리하는 3종류의 래디알(Radial) 타입 SBS를 상호 혼합하도록 하여 제조된 아스팔트 개질제를 아스팔트와 혼합 제조함으로서 생산성 및 용해성을 향상시키도록 하는데 목적이 있다.
The present invention is to solve the problems of the conventional asphalt modifier, and it is an object of the present invention to provide an asphalt modifier which is produced by mixing three types of Radial type SBS having different molecular weights, together with asphalt, And to improve it.

상기 목적을 이루기 위한 본 발명의 아스팔트 개질제는, 아스팔트 45~70중량%와, 중량평균 분자량 50,000 ~ 150,000의 SBS 10~25중량%와, 중량평균 분자량 200,000 ~ 250,000의 래디알(Radial) 타입 SBS 5~20중량%와, 중량평균 분자량 250,000 ~ 350,000의 SBS 5~20중량%와, 프로세스 오일 1~10중량%와, 석유수지 5~15중량%와, 산화방지제 0.1~1중량%가 혼합된 것을 특징으로 한다.
The asphalt modifier of the present invention comprises 45 to 70% by weight of asphalt, 10 to 25% by weight of SBS having a weight average molecular weight of 50,000 to 150,000, and a radial type SBS 5 having a weight average molecular weight of 200,000 to 250,000. And 5 to 20% by weight of an SBS having a weight average molecular weight of 250,000 to 350,000, 1 to 10% by weight of a process oil, 5 to 15% by weight of a petroleum resin and 0.1 to 1% .

이러한 본 발명의 아스팔트 개질제는, 각기 평균 분자량을 달리하는 3종류의 래디알(Radial) 타입 SBS를 상호 일정 비율로 혼합하여 사용함으로서 개질제의 단점인 용해성을 향상시켜 상분리현상을 방지하고 이에 따른 제품의 소량생산이 가능하도록 하는 효과를 나타낸다.The asphalt modifier of the present invention may be prepared by mixing three kinds of Radial type SBS having different average molecular weights at a certain ratio to improve the solubility which is a disadvantage of the modifier to prevent the phase separation phenomenon, The effect of enabling small-scale production is shown.

특히, 아스팔트 혼합물 제조시 첨가되는 아스팔트를 개질제에 첨가함으로서 개질제의 우수한 성능은 유지하면서 용해성이 크게 개선되어질 수 있게 된다.
In particular, the addition of asphalt to the modifier during the preparation of the asphalt mixture enables the solubility to be greatly improved while maintaining the excellent performance of the modifier.

이하, 아스팔트 개질제 조성물 및 개질제 제조과정에 대한 본 발명의 구체적인 실시 예를 살펴보기로 한다.Hereinafter, specific examples of the present invention will be described with respect to the asphalt modifier composition and the modifier preparation process.

먼저 본 발명의 아스팔트 개질제 조성물의 실시예로서, 아스팔트 55중량%, 중량 평균 분자량 50,000~150,000의 저분자SBS(Styrene Butadiene Styrene) 10중량%, 중량 평균 분자량 200,000~250,000의 래디알타입 중분자 SBS 10중량% 그리고 250,000~350,000인 래디알(Radial) 타입 고분자 SBS 12중량%, 프로세스 오일 5중량%, 석유수지 7.7중량%, 산화방지제 0.3중량%를 혼합하여 아스팔트 개질제를 제조하였다.As an example of the asphalt modifier composition of the present invention, 10 weight% of low molecular weight SBS (Styrene Butadiene Styrene) having a weight average molecular weight of 50,000 to 150,000 and 10 weight% of a radial type molecular weight SBS having a weight average molecular weight of 200,000 to 250,000 %, And 12,000 to 350,000 Radial type polymer SBS 12 wt%, process oil 5 wt%, petroleum resin 7.7 wt%, and antioxidant 0.3 wt% were mixed to prepare an asphalt modifier.

즉, SBS개질제는 리니어(Linear) 타입 SBS와 래디알(Radial) 타입 SBS으로 구분될 수 있는데, 그중 리니어 타입 SBS는 SB Diblock을 2개의 작용기가 있는 Coupling agent와 결합시켜 선형 구조를 가지는 것으로서, 중/저분자량(7만~15만)의 SBS를 형성하는 것이고, 래디알 타입 SBS는 SB Diblock을 4개의 작용기가 있는 Coupling agent와 결합시켜 방사형의 구조를 가지게 되는 것으로서, 고분자량(20만~35만)의 SBS를 형성시키는 것으로 알려져 있다.That is, the SBS modifier can be classified into a linear type SBS and a radial type SBS. Among them, the linear type SBS has a linear structure by combining the SB diblock with a coupling agent having two functional groups. / Low molecular weight (70,000 to 150,000) of SBS, and radial type SBS has a radial structure by combining SB diblock with a coupling agent having four functional groups. It has a high molecular weight (200,000 to 35,000 SBS < / RTI >

그리고 상기, 프로세스 오일은 혼합 안정성을 위해 색상이 옅고 방향족 성분(Ca)이 10% 이하이며, 다환방향족 화합물인 PCA(Poly-Cyclic Aromatic) 함량이 1.0% 이하이고 황함량이 적은 수소첨가 개질유 (Severely Hydrotreaded)를 사용하였다.The process oil is a hydrogenated reforming oil having a lighter hue and an aromatic component (Ca) of 10% or less for polycondensation stability, a PCA (Poly-Cyclic Aromatic) content of 1.0% or less and a sulfur content of less than 10% Severely Hydrotreaded) was used.

또한, 석유수지는 석유의 정제과정이나 석유화학공업의 부산물로서 생기는 유분으로 올레핀이나 디올레핀을 함유하는 것을 원료로 사용하였다.In addition, petroleum resin is used as a raw material in refining process of petroleum or as a byproduct of petroleum chemical industry and containing olefin or diolefin.

한편, 산화방지제로는 여러가지 산화방지제 종류 중 휘발성이 뛰어나고 물에는 잘 녹지않는 특성을 갖는 BHT(디부틸히드록시톨루엔, dibutylhydroxytoluene)을 사용함이 바람직하다.On the other hand, it is preferable to use BHT (dibutylhydroxytoluene) which is excellent in volatility and insoluble in water among various kinds of antioxidants.

이와 같은 조성을 이루는 개질제는 1종류의 SBS가 아닌 3종류의 SBS가 혼합 조성되어짐으로 폐아스콘에 붙어있는 AP유(AsPhalt oil)의 재생특성이 향상되어질 수 있으며, 특히 산화방지제로서 BHT가 혼합되어짐으로서 저장 과정에서의 상분리현상이 방지되어질 수 있게 된다.As a modifier for this composition, the regeneration characteristics of AP oil (AsPhalt oil) attached to the waste asbestos can be improved by mixing three SBSs instead of one SBS. In particular, BHT is mixed as an antioxidant The phase separation phenomenon in the storage process can be prevented.

따라서, 본 발명의 개질제를 이용하게 되면 용해성 향상에 따른 상분리현상 발생이 방지되어 개질제의 투입 즉시 아스팔트 콘크리트의 생산이 이루어질 수 있게 됨을 알 수 있다.
Therefore, when the modifier of the present invention is used, it can be seen that the phase separation phenomenon due to the improvement in solubility is prevented, and the asphalt concrete can be produced immediately after the modifier is added.

그리고, 상기에서 본 발명의 특정한 실시 예가 설명 및 도시되었지만 본 발명의 개질제 혼합 조성물이 당업자에 의해 다양하게 변형되어 실시될 수 있음은 자명한 일이다.Although specific embodiments of the present invention have been described and illustrated above, it is obvious that the modifier mixture composition of the present invention can be variously modified by those skilled in the art.

그러나, 이와 같은 변형된 실시예들은 본 발명의 기술적 사상이나 범위로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시 예들은 본 발명의 첨부된 특허청구범위 내에 포함된다 해야 할 것이다.
It should be understood, however, that such modified embodiments are not to be understood individually from the spirit and scope of the invention, and such modified embodiments are intended to be included within the scope of the appended claims.

Claims (4)

아스팔트 45~70중량%와, 중량평균 분자량 50,000 ~ 150,000의 SBS 10~25중량%와, 중량평균 분자량 200,000 ~ 250,000의 래디알 타입 SBS 5~20중량%와, 중량평균 분자량 250,000 ~ 350,000의 래디알(Radial) 타입 SBS 5~20중량%와, 프로세스 오일 1~10중량%와, 석유수지 5~15중량%와, 산화방지제 0.1~1중량%가 혼합된 것을 특징으로 하는 아스팔트와 에스비에스가 혼합된 아스팔트 개질제.45 to 70% by weight of asphalt, 10 to 25% by weight of SBS having a weight average molecular weight of 50,000 to 150,000, 5 to 20% by weight of radial type SBS having a weight average molecular weight of 200,000 to 250,000, Characterized in that 5 to 20% by weight of radial type SBS, 1 to 10% by weight of process oil, 5 to 15% by weight of petroleum resin and 0.1 to 1% by weight of an antioxidant are mixed Asphalt modifier. 청구항 1에 있어서,
상기 산화방지제는 BHT(디부틸히드록시톨루엔, dibutylhydroxytoluene)를 사용함을 특징으로 하는 아스팔트와 에스비에스가 혼합된 아스팔트 개질제.The method according to claim 1,
Wherein the antioxidant is selected from the group consisting of dibutylhydroxytoluene (BHT) and asphalt. 청구항 1에 있어서,
상기 석유수지는 석유의 정제과정이나 석유화학공업의 부산물로서 생기는 유분으로 올레핀이나 디올레핀을 함유하는 것을 특징으로 하는 아스팔트와 에스비에스가 혼합된 아스팔트 개질제.The method according to claim 1,
Wherein said petroleum resin is an oil fraction produced as a byproduct of petroleum refining process or petrochemical industry, and contains olefin or diolefin. 아스팔트 45~70중량%와, 중량평균 분자량 50,000 ~ 150,000의 SBS 10~25중량%와, 중량평균 분자량 200,000 ~ 250,000의 래디알 타입 SBS 5~20중량%와, 중량평균 분자량 250,000 ~ 350,000의 래디알(Radial) 타입 SBS 5~20중량%와, 프로세스 오일 1~10중량%와, 석유수지 5~15중량%와, 산화방지제 0.1~1중량%를 혼합하여 개질제를 제조하는 것을 특징으로 하는 아스팔트와 에스비에스가 혼합된 아스팔트 개질제 제조방법.45 to 70% by weight of asphalt, 10 to 25% by weight of SBS having a weight average molecular weight of 50,000 to 150,000, 5 to 20% by weight of radial type SBS having a weight average molecular weight of 200,000 to 250,000, A modifier is produced by mixing 5 to 20% by weight of radial type SBS, 1 to 10% by weight of process oil, 5 to 15% by weight of petroleum resin and 0.1 to 1% by weight of an antioxidant. A method for manufacturing an asphalt modifier mixed with SBS.
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KR100907869B1 (en) 2009-01-16 2009-07-14 주식회사 포이닉스 Modified asphalt composition

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