阅读说明：本技术 一种改性夜光彩色沥青及其制备方法 (Modified luminous color asphalt and preparation method thereof ) 是由 石心明 曾晓玲 黄青青 何梓祈 朱增 于 2021-07-26 设计创作，主要内容包括：本发明属于道路建筑材料技术领域,公开了一种改性夜光彩色沥青及其制备方法。该改性夜光彩色沥青原料组成为：天然树脂30～80份,乳胶再生胶5～28份,石蜡油1～10份,荧光粉2～15份,玻璃微珠1～3份,彩色颜料12～25份,增塑剂0.5～1.5份,抗氧剂0.1～0.6份,耐候剂0.3～1份。本发明以天然树脂为基础原料,以乳胶再生胶为改性剂,制得的夜光彩色沥青的色彩鲜明,软化点高,夜光效果好,提高了沥青路面的高温性能、抗水损害、耐低温性以及抗老化性。而且,乳胶再生胶以废旧乳胶枕作为主要原料,实现了废旧天然乳胶制品的可循环利用,具有节约资源、环境友好特点。(The invention belongs to the technical field of road building materials, and discloses modified noctilucent colored asphalt and a preparation method thereof. The modified luminous color asphalt comprises the following raw materials: 30-80 parts of natural resin, 5-28 parts of latex reclaimed rubber, 1-10 parts of paraffin oil, 2-15 parts of fluorescent powder, 1-3 parts of glass beads, 12-25 parts of color pigment, 0.5-1.5 parts of plasticizer, 0.1-0.6 part of antioxidant and 0.3-1 part of weather-resistant agent. The invention takes natural resin as a basic raw material and latex reclaimed rubber as a modifier, and the prepared noctilucent color asphalt has bright color, high softening point and good noctilucent effect, and improves the high temperature performance, water damage resistance, low temperature resistance and aging resistance of asphalt pavement. In addition, the latex reclaimed rubber takes the waste latex pillow as a main raw material, realizes the recycling of waste natural latex products, and has the characteristics of resource saving and environmental friendliness.)

1. The modified luminous colored asphalt is characterized by being prepared from the following raw materials in parts by mass:

30-80 parts of natural resin, 5-28 parts of latex reclaimed rubber, 1-10 parts of paraffin oil, 2-15 parts of fluorescent powder, 1-3 parts of glass beads, 12-25 parts of color pigment, 0.5-1.5 parts of plasticizer, 0.1-0.6 part of antioxidant and 0.3-1 part of weather-resistant agent.

2. The modified luminous colored asphalt as claimed in claim 1, wherein the natural resin is one or both of rosin resin and shellac resin.

3. The modified luminous colored asphalt as claimed in claim 1, wherein the latex reclaimed rubber is prepared by desulfurization treatment of waste latex pillows.

4. The modified luminous colored asphalt as claimed in any one of claims 1 to 3, wherein the color of the phosphor is yellow, green, red, purple or yellow-green.

5. The modified luminous colored asphalt as claimed in claim 3, wherein the particle size of the glass beads is not more than 50 μm.

6. The modified luminous colored asphalt as claimed in claim 4, wherein the color pigment is iron red, chromium green, iron green, titanium white or chromium yellow.

7. A modified luminous colored asphalt as claimed in claim 2 or 5, wherein the plasticizer is zinc stearate, dioctyl phthalate, dibutyl phthalate or tributyl acetylcitrate.

8. The modified noctilucent color asphalt of claim 5, wherein the antioxidant is antioxidant 1010, antioxidant 1076, antioxidant 264 or antioxidant DLTP.

9. The modified noctilucent color asphalt of claim 2 or 3, wherein the weather-resistant agent is bis (1,2,2,6, 6-pentamethyl-4-piperidyl) sebacate.

10. The preparation method of the modified luminous colored asphalt as claimed in any one of claims 1 to 9, characterized by comprising the following steps:

blending and stirring natural resin, latex reclaimed rubber, paraffin oil, color pigment, plasticizer, antioxidant and weather-resistant agent, adding fluorescent powder and glass beads, stirring and mixing, extruding by an extruder, granulating and cooling to obtain the modified noctilucent color asphalt.

Technical Field

The invention relates to the technical field of road building materials, in particular to modified noctilucent color asphalt and a preparation method thereof.

Background

Domestic road surfaces are usually asphalt or cement, and asphalt accounts for more than 85%. The traditional pavement has single color, is easy to cause visual fatigue after long-time driving, and is easy to cause driving harm due to dim light at night. Therefore, the colored asphalt pavement is more and more concerned, and the colored asphalt pavement not only has good performances of elasticity, shock absorption, easy cleaning and the like of common asphalt concrete, but also improves the black monotonicity of the common asphalt pavement and can be matched with surrounding buildings and landscapes. In addition, in the aspect of traffic management, traffic can be induced, and functions such as distinguishing road sections and lanes by colors can be achieved.

At present, the color asphalt provided in the market is generally prepared by taking modern petrochemical products, such as petroleum resin, petroleum asphalt, aromatic hydrocarbon oil and the like, as main raw materials and adding a certain pigment to obtain the color asphalt. However, the softening point of the existing color asphalt cement is usually between 50 ℃ and 60 ℃, the high-temperature stability is poor, the aging resistance is also poor, and the requirements of high-performance color asphalt pavements cannot be met. The natural resin material has a higher softening point, is modified by using rubber, and is added with functional additives such as a tackifier and the like, so that the ageing resistance of the cementing material can be obviously improved.

In the prior art, the selection of rubber is synthetic rubber generally, but the rubber resource is deficient in China, the consumption is high, the import is mainly relied on, the annual output of waste rubber is increased, and the technology of recycling the waste rubber is produced. The natural latex product can be recycled, desulfurized and regenerated to obtain regenerated materials such as latex reclaimed rubber, rubber powder and the like.

Therefore, the waste rubber raw material is used as the main raw material of the color asphalt cement, which has important research significance, and how to further improve the performance of the color asphalt cement on the basis of waste resource utilization and cost reduction is a problem to be solved at present.

Disclosure of Invention

The invention aims to provide modified noctilucent colored asphalt and a preparation method thereof, and solves the problems that the existing colored asphalt cement is low in softening point, poor in aging resistance and incapable of realizing resource utilization of wastes.

In order to achieve the above object, the present invention provides the following technical solutions:

the invention provides modified noctilucent color asphalt which is prepared from the following raw materials in parts by mass:

30-80 parts of natural resin, 5-28 parts of latex reclaimed rubber, 1-10 parts of paraffin oil, 2-15 parts of fluorescent powder, 1-3 parts of glass beads, 12-25 parts of color pigment, 0.5-1.5 parts of plasticizer, 0.1-0.6 part of antioxidant and 0.3-1 part of weather-resistant agent.

Preferably, in the modified noctilucent color asphalt, the natural resin is one or two of rosin resin and shellac resin.

Preferably, in the modified noctilucent color asphalt, the latex reclaimed rubber is prepared by desulfurization treatment of waste latex pillows.

Preferably, in the modified noctilucent color asphalt, the color of the fluorescent powder is yellow, green, red, purple or yellow-green.

Preferably, in the modified luminous colored asphalt, the particle size of the glass beads is not more than 50 μm.

Preferably, in the modified luminous color asphalt, the color pigment is iron oxide red, rock green, iron oxide green, titanium white or rock yellow.

Preferably, in the modified noctilucent color asphalt, the plasticizer is zinc stearate, dioctyl phthalate, dibutyl phthalate or acetyl tributyl citrate.

Preferably, in the modified noctilucent color asphalt, the antioxidant is antioxidant 1010, antioxidant 1076, antioxidant 264 or antioxidant DLTP.

Preferably, in the modified noctilucent color asphalt, the weather resisting agent is bis (1,2,2,6, 6-pentamethyl-4-piperidyl) sebacate.

The invention also provides a preparation method of the modified noctilucent color asphalt, which comprises the following steps:

blending and stirring natural resin, latex reclaimed rubber, paraffin oil, color pigment, plasticizer, antioxidant and weather-resistant agent, adding fluorescent powder and glass beads, stirring and mixing, extruding by an extruder, granulating and cooling to obtain the modified noctilucent color asphalt.

Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:

(1) the latex reclaimed rubber takes the waste latex pillow as a main raw material, realizes the recycling of waste natural latex products, and has the characteristics of resource saving and environmental friendliness.

(2) The invention takes natural resin as the basic raw material of the noctilucent color asphalt and latex reclaimed rubber as the modifier, and the prepared noctilucent color asphalt has bright color and cannot influence the noctilucence and the color due to the color of the resin or the rubber.

(3) The noctilucent color asphalt has high viscosity, high softening point and good noctilucent effect, improves the high-temperature performance, water damage resistance, low temperature resistance and aging resistance of the asphalt pavement, and has good use effect in practical application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides modified noctilucent color asphalt which is prepared from the following raw materials in parts by mass:

30-80 parts of natural resin, 5-28 parts of latex reclaimed rubber, 1-10 parts of paraffin oil, 2-15 parts of fluorescent powder, 1-3 parts of glass beads, 12-25 parts of color pigment, 0.5-1.5 parts of plasticizer, 0.1-0.6 part of antioxidant and 0.3-1 part of weather-resistant agent.

Preferably, in the modified luminous colored asphalt, the natural resin is one or two of rosin resin and shellac resin, and is further preferably rosin resin.

Preferably, in the modified luminous colored asphalt, the latex reclaimed rubber is prepared by desulfurization treatment of waste latex pillows.

Preferably, in the modified noctilucent color asphalt, the color of the fluorescent powder is yellow, green, red, purple or yellow-green.

Preferably, in the modified luminous colored asphalt, the particle size of the glass beads is not more than 50 μm.

Preferably, in the modified luminous color asphalt, the color pigment is iron red, Lopa, iron green, titanium white or Lopa yellow.

Preferably, in the modified noctilucent color asphalt, the plasticizer is zinc stearate, dioctyl phthalate, dibutyl phthalate or acetyl tributyl citrate.

Preferably, in the modified noctilucent color asphalt, the antioxidant is antioxidant 1010, antioxidant 1076, antioxidant 264 or antioxidant DLTP.

Preferably, in the modified luminous colored asphalt, the weather resisting agent is bis (1,2,2,6, 6-pentamethyl-4-piperidyl) sebacate.

The invention also provides a preparation method of the modified noctilucent color asphalt, which comprises the following steps:

blending and stirring natural resin, latex reclaimed rubber, paraffin oil, color pigment, plasticizer, antioxidant and weather-resistant agent, adding fluorescent powder and glass beads, stirring and mixing, extruding by an extruder, granulating and cooling to obtain the modified noctilucent color asphalt.

Example 1

The invention provides modified noctilucent color asphalt which is prepared from the following raw materials in parts by mass: 40 parts of rosin resin, 15 parts of latex reclaimed rubber, 10 parts of paraffin oil, 5 parts of green fluorescent powder, 1 part of glass microsphere, 15 parts of color pigment Lopa green, 0.5 part of zinc stearate, 10760.1 parts of antioxidant and 0.3 part of bis (1,2,2,6, 6-pentamethyl-4-piperidyl) sebacate.

Example 2

The invention provides modified noctilucent color asphalt which is prepared from the following raw materials in parts by mass: 30 parts of shellac resin, 20 parts of latex reclaimed rubber, 8 parts of paraffin oil, 2 parts of yellow fluorescent powder, 3 parts of glass beads, 12 parts of color pigment Lopa yellow, 0.6 part of dioctyl phthalate, 10100.2 parts of antioxidant and 0.5 part of bis (1,2,2,6, 6-pentamethyl-4-piperidyl) sebacate.

Example 3

The invention provides modified noctilucent color asphalt which is prepared from the following raw materials in parts by mass: 30 parts of rosin resin, 30 parts of shellac resin, 28 parts of latex reclaimed rubber, 2 parts of paraffin oil, 10 parts of red fluorescent powder, 2 parts of glass beads, 20 parts of color pigment titanium white, 1 part of acetyl tributyl citrate, 2640.6 parts of antioxidant and 0.8 part of bis (1,2,2,6, 6-pentamethyl-4-piperidyl) sebacate.

Example 4

The invention provides modified noctilucent color asphalt which is prepared from the following raw materials in parts by mass: 10 parts of rosin resin, 20 parts of shellac resin, 5 parts of latex reclaimed rubber, 5 parts of paraffin oil, 15 parts of yellow-green fluorescent powder, 3 parts of glass beads, 12 parts of color pigment, namely yellow, 0.2 part of dioctyl phthalate, 0.5 part of dibutyl phthalate, 0.4 part of antioxidant DLTP and 1 part of bis (1,2,2,6, 6-pentamethyl-4-piperidyl) sebacate.

Comparative example 1

The latex reclaimed rubber of the embodiment 1 is replaced by SBS modifier, and the other components are unchanged, so as to obtain the modified noctilucent color asphalt.

The modified noctilucent color asphalt prepared in the embodiments 1-4 and the comparative example 1 of the invention is subjected to a performance test, and the test method comprises the following steps: JTG E20-2011 test Specification for road engineering asphalt and asphalt mixtures, the results are shown in Table 1.

TABLE 1 modified luminous color asphalt Performance test results

As can be seen from Table 1, example 1 of the present invention has higher softening point, penetration and dynamic viscosity than comparative example 1, and the remaining properties are better than those of comparative example 1. Therefore, compared with the traditional SBS modifier, the modified asphalt modifier has better performance by using the latex reclaimed rubber as the modifier, the softening point of the prepared modified asphalt is improved, and the aging resistance is greatly improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.