阅读说明：本技术 彩色沥青的配料及制备方法 (Ingredient of color asphalt and preparation method thereof ) 是由 陈成芹 张微 武红娟 甘季中 王睿 于 2019-02-25 设计创作，主要内容包括：一种彩色沥青的配料及制备方法,所述配料包括：重量份数为35份～49份的石油树脂,重量份数为41份～53份的芳烃油,重量份数为10份～12份的改性剂,重量份数为1份～2份的分散剂和重量份数为0.1份～0.5份的抗氧化剂。结合其制备方法有效避免了现有技术中彩色沥青的配料在制备过程中不容易让无机颜料中的纳米氧化铁红颜料着色使得效果很差、彩色沥青的配料在制备过程中与大红色的有机颜料中的二苯基吡咯并吡咯二酮(DPP)颜料融合性能不佳使得常常发生分离的缺陷。(The ingredients of the colored asphalt and the preparation method thereof are as follows: 35 to 49 parts by weight of petroleum resin, 41 to 53 parts by weight of aromatic oil, 10 to 12 parts by weight of modifier, 1 to 2 parts by weight of dispersant and 0.1 to 0.5 part by weight of antioxidant. The preparation method effectively overcomes the defects that in the prior art, the ingredient of the colored asphalt is not easy to color the nano iron oxide red pigment in the inorganic pigment in the preparation process so that the effect is poor, and the ingredient of the colored asphalt is not well fused with the diphenylpyrrolopyrrole Dione (DPP) pigment in the bright red organic pigment in the preparation process so that the ingredients are often separated.)

1. A colored asphalt formulation, comprising:

35 to 49 parts by weight of petroleum resin, 41 to 53 parts by weight of aromatic oil, 10 to 12 parts by weight of modifier, 1 to 2 parts by weight of dispersant and 0.1 to 0.5 part by weight of antioxidant.

2. The formulation of colored asphalt according to claim 1, wherein the petroleum resin is 18# carbon nine petroleum resin.

3. The formulation of colored asphalt according to claim 1, wherein the aromatic oil is any one of aromatic oil special for modified asphalt with the serial number GXJ-I, aromatic oil special for modified asphalt with the serial number GXJ-II, or aromatic oil special for modified asphalt with the serial number GXJ-III.

4. The formulation of colored asphalt according to claim 1, wherein the modifier is SBS modifier under the brand number Guobao No. 1;

the modifier can also be a mixture consisting of an SBS modifier with the brand number of GuoChuang No. 1 and SEBS, wherein the SBS modifier with the brand number of GuoChuang No. 1 and the SEBS are the same in parts by weight.

5. The formulation for colored asphalt according to claim 1, wherein the dispersant is dispersant NNO.

6. The formulation for colored asphalt according to claim 1, wherein the antioxidant is antioxidant 1010.

7. The preparation method of the colored asphalt is characterized by comprising the following steps of:

step 1: firstly, putting 35-49 parts by weight of petroleum resin and 41-53 parts by weight of aromatic oil into a reaction kettle to form a mixture, heating the reaction kettle while stirring the mixture to ensure that the mixture can be fully mixed and melted, wherein the heating of the reaction kettle is carried out for 20min under the condition that the heating temperature is 100-105 ℃;

step 2: adding 10-12 parts by weight of modifier into the fully mixed and melted mixture, then starting a high-speed shearing instrument at a low speed, and pretreating the mixture added with the modifier by using the high-speed shearing instrument started at the low speed, wherein the low speed is that the rotating speed of the high-speed shearing instrument is 800-1000 r/min, and the time for pretreating the mixture added with the modifier by using the high-speed shearing instrument started at the low speed is 12-14 min;

heating the reaction kettle to ensure that the heating temperature reaches 120-130 ℃, shearing the pretreated mixture by using a high-speed shearing instrument to achieve secondary treatment, wherein the shearing of the pretreated mixture by using the high-speed shearing instrument is carried out by shearing the mixture for 14-16 min under the condition of high rotating speed of 4000-6000 r/min by using the high-speed shearing instrument, and then shearing the mixture subjected to secondary treatment for 15-20 min under the condition of low rotating speed of 800-1000 r/min by using the high-speed shearing instrument;

and step 3: 1-2 parts by weight of dispersant and 0.1-0.5 part by weight of antioxidant are put into a reaction kettle, a mixture of 1-2 parts by weight of dispersant and 0.1-0.5 part by weight of antioxidant is sheared for 15-20 min under the low speed condition that the rotating speed of a high speed shearing instrument is 800-1000 r/min, thus forming light color binder, the light color binder is poured into a charging basket, and then pigment is added into the prepared light color binder to prepare the color asphalt.

8. The method for preparing colored asphalt according to claim 7, wherein 10 to 12 parts by weight of the modifier is added to the fully mixed and melted mixture in a manner that the modifier can be added at a time before the high-speed shearing apparatus is started at a low speed in step 2, or in a manner that the modifier is added at a constant speed after the high-speed shearing apparatus is started at a low speed, wherein the time for adding the modifier at the constant speed is 1 to 2 min.

9. The method for preparing colored asphalt according to claim 7, wherein the pigment is nano iron oxide red pigment as inorganic pigment or diphenyl pyrrolo-pyrrole-dione pigment as organic pigment, and the weight of the pigment is 2-3% of that of the light-colored binder.

Technical Field

The invention relates to the technical field of colored asphalt preparation, in particular to ingredients and a preparation method of colored asphalt.

Background

The asphalt pavement is widely applied at home and abroad due to the advantages of high driving comfort, high water resistance and the like. For a long time, at present, the economy is rapidly developed, the residential environment is colorful, and the green space is increasingly emphasized, the black asphalt pavement is dull, has poor harmony with the surrounding environment of the road and influences the road landscape, and absorbs heat to aggravate the urban heat island effect, so that the daily activities and the living standard of people are directly influenced. In recent years, with the development of economy, the quality of life of people is continuously improved, the humanistic idea is continuously enhanced, and the colored asphalt pavement attracts more and more attention of countries in the world. The colored asphalt as a novel green building material can beautify the environment, beautify the city, improve road landscape, show the smell of the modern city, improve the cultural background of the city, improve the quality of the living environment of people, and play roles of strengthening traffic warning, dividing traffic intervals, inducing traffic, absorbing heat, relieving heat island effect and the like, so the colored asphalt has important significance in road pavement of important cities.

The color asphalt, also known as color cementing material, is a cementing material which imitates the components of petroleum asphalt and is formed by blending and modifying chemical materials such as petroleum resin, SBS modifier and the like, the asphalt is not colored or colorless, but is dark brown, and the asphalt is generally called color asphalt according to market habits in recent years because of adding pigments. The three indexes of the colored asphalt need to meet the technical index requirements of the matrix asphalt, and the technical requirements of the colored asphalt meet CJJ/T218-2014 technical Specification for colored asphalt concrete pavements of urban roads. The LS series color asphalt is divided into three categories of matrix, modification and special according to the pavement performance, and is suitable for various different requirements of the color pavement market.

The existing ingredients of the colored asphalt generally have the following defects in the preparation process:

the ingredients of the colored asphalt are not easy to color the nano iron oxide red pigment in the inorganic pigment in the preparation process, and the effect is very poor; the formulation of colored asphalt often separates during the manufacturing process due to poor fusion with the diphenylpyrrolopyrrole Dione (DPP) pigment of the bright red organic pigments.

Disclosure of Invention

In order to solve the problems, the invention provides a ingredient of colored asphalt and a preparation method thereof, which effectively overcome the defects that in the prior art, the ingredient of colored asphalt is not easy to color a nano iron oxide red pigment in an inorganic pigment in the preparation process so that the effect is poor, and the ingredient of colored asphalt is not well fused with a diphenylpyrrolopyrrole Dione (DPP) pigment in a bright red organic pigment in the preparation process so that the ingredient of colored asphalt is often separated.

In order to overcome the defects in the prior art, the invention provides a solution of a blending and preparation method of colored asphalt, which comprises the following specific steps:

a colored asphalt formulation, comprising:

35 to 49 parts by weight of petroleum resin, 41 to 53 parts by weight of aromatic oil, 10 to 12 parts by weight of modifier, 1 to 2 parts by weight of dispersant and 0.1 to 0.5 part by weight of antioxidant.

The petroleum resin is 18# carbon nine petroleum resin.

The aromatic oil is any one of aromatic oil special for modified asphalt with the serial number GXJ-I, aromatic oil special for modified asphalt with the serial number GXJ-II or aromatic oil special for modified asphalt with the serial number GXJ-III.

The modifier is SBS modifier with the brand number of national institute 1;

the modifier can also be a mixture consisting of an SBS modifier with the brand number of GuoChuang No. 1 and SEBS, wherein the SBS modifier with the brand number of GuoChuang No. 1 and the SEBS are the same in parts by weight.

The dispersant is dispersant NNO.

The antioxidant is antioxidant 1010.

The preparation method of the colored asphalt comprises the following steps:

step 1: firstly, putting 35-49 parts by weight of petroleum resin and 41-53 parts by weight of aromatic oil into a reaction kettle to form a mixture, heating the reaction kettle while stirring the mixture to ensure that the mixture can be fully mixed and melted, wherein the heating of the reaction kettle is carried out for 20min under the condition that the heating temperature is 100-105 ℃;

step 2: adding 10-12 parts by weight of modifier into the fully mixed and melted mixture, then starting a high-speed shearing instrument at a low speed, and pretreating the mixture added with the modifier by using the high-speed shearing instrument started at the low speed, wherein the low speed is that the rotating speed of the high-speed shearing instrument is 800-1000 r/min, and the time for pretreating the mixture added with the modifier by using the high-speed shearing instrument started at the low speed is 12-14 min;

heating the reaction kettle to ensure that the heating temperature reaches 120-130 ℃, shearing the pretreated mixture by using a high-speed shearing instrument to achieve secondary treatment, wherein the shearing of the pretreated mixture by using the high-speed shearing instrument is carried out by shearing the mixture for 14-16 min under the condition of high rotating speed of 4000-6000 r/min by using the high-speed shearing instrument, and then shearing the mixture subjected to secondary treatment for 15-20 min under the condition of low rotating speed of 800-1000 r/min by using the high-speed shearing instrument;

and step 3: 1-2 parts by weight of dispersant and 0.1-0.5 part by weight of antioxidant are put into a reaction kettle, a mixture of 1-2 parts by weight of dispersant and 0.1-0.5 part by weight of antioxidant is sheared for 15-20 min under the low speed condition that the rotating speed of a high speed shearing instrument is 800-1000 r/min, thus forming light color binder, the light color binder is poured into a charging basket, and then pigment is added into the prepared light color binder to prepare the color asphalt.

The modifier with the weight part of 10-12 parts is added into the fully mixed and melted mixture in a mode of adding the modifier at one time before the high-speed shearing instrument is started at a low speed in the step 2, or in a mode of adding the modifier at a constant speed after the high-speed shearing instrument is started at a low speed, wherein the time for adding the modifier at the constant speed is 1-2 min.

The pigment is a nano iron oxide red pigment serving as an inorganic pigment or a diphenyl pyrrolo-pyrrole-dione pigment serving as an organic pigment, and the weight of the pigment is 2-3% of that of the light-colored binder.

The invention has the beneficial effects that:

the color asphalt obtained by the invention can lead the ingredients of the color asphalt to be easy to color the nano iron oxide red pigment in the inorganic pigment in the preparation process, thus having good coloring effect, and lead the ingredients of the color asphalt to have better fusion performance with the diphenyl pyrrolo-pyrrole-Dione (DPP) pigment in the bright red organic pigment and be difficult to separate in the preparation process.

Drawings

FIG. 1 is a flow chart of the preparation method of the present invention.

FIG. 2 is a graph showing the effect of the colored asphalt of example 1 of the present invention, in which the blocks on the top of the iron plate are colored asphalt.

FIG. 3 is a graph showing the effect of the colored asphalt of example 2 of the present invention, in which the blocks on the top of the iron plate are colored asphalt.

FIG. 4 is a graph showing the effect of the colored asphalt of example 3 of the present invention, in which the blocks on the top of the iron plate are colored asphalt.

Detailed Description

The invention will be further described with reference to the following figures and examples.