Modifier as well as preparation method and application thereof

A modifier and modification technology, used in building components, building insulation materials, building structures, etc., can solve the problems of poor construction workability and poor melt dispersion of modifiers.

Inactive Publication Date: 2018-04-06
ROADMAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a modifier, a preparation method and its appl...

Method used

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  • Modifier as well as preparation method and application thereof
  • Modifier as well as preparation method and application thereof
  • Modifier as well as preparation method and application thereof

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[0029] The embodiment of the invention also discloses a preparation method of the modifying agent. The preparation method prepares the above-mentioned modifying agent. Specifically, such as figure 1 Shown, the preparation method of this modifying agent comprises the steps:

[0030] Step S10: weighing raw materials.

[0031] Wherein, the raw material includes the following components in parts by weight: 40-80 parts of thermoplastic elastomer polymer, 10-30 parts of modified petroleum resin, 5-20 parts of heat-sensitive resin, 1-5 parts of stabilizer, plasticizer 5-20 parts and 1-3 parts of antioxidant. The specific composition of the raw material can be referred to the modifier mentioned above, and will not be repeated here.

[0032] Step S20: mixing the raw materials uniformly at 50-100° C. to obtain a mixture.

[0033] Specifically, this step can be carried out in a high-speed mixer, and the raw materials are uniformly mixed by high-speed stirring.

[0034] Step S30: me...

Embodiment 1

[0045] The modifying agent of embodiment 1 adopts and comprises the raw material preparation in following parts by weight: styrene-butadiene-styrene triblock copolymer (the weight percent composition of styrene is 30%, and melt index is 12g / 10min) 62 parts, 16 parts of modified C5 petroleum resin, 10 parts of polyvinyl chloride resin, 2 parts of calcium-zinc composite stabilizer, 9 parts of dioctyl phthalate, 1 part of antioxidant (1010).

[0046] The preparation method of the modifying agent in Example 1 is as follows: after weighing each raw material according to the above ratio, add it to a high-speed mixer, stir at a high speed of 50°C for 10 minutes, and then send it into a twin-screw extruder for extrusion and granulation. The barrel temperature is 180°C, the screw speed is 150r / min, and after cooling and drying, Modifier 1# is obtained.

[0047] The method of preparing high-viscosity modified asphalt from modifier 1# is as follows: heat the base asphalt to 160°C, and t...

Embodiment 2

[0050] The modifying agent of embodiment 2 adopts and comprises the raw material preparation in following parts by weight: styrene-ethylene butylene copolymer-styrene triblock copolymer (the weight percent composition of styrene is 33%, and melt index is 14g / 10min) 48 parts, modified terpene resin 22 parts, polyvinyl chloride resin 7 parts, calcium zinc composite stabilizer 2 parts, dioctyl phthalate 20 parts, antioxidant (1010) 1 part.

[0051] The preparation method of the modifying agent in Example 2 is as follows: weigh each raw material according to the above ratio and add it to a high-speed mixer, stir at a high speed of 80°C for 10 minutes, and then send it into a twin-screw extruder for extrusion and granulation. The barrel temperature is 200°C, the screw speed is 180r / min, after cooling and drying, modifier 2# is obtained.

[0052] The method of preparing high-viscosity modified asphalt from modifier 2# is as follows: heat the base asphalt to 160°C, and then add an ap...

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Abstract

The embodiment of the invention discloses a modifier as well as a preparation method and application thereof. The modifier is prepared from the following raw materials in parts by weight: 40-80 partsof thermoplastic elastomer polymer, 10-30 parts of modified petroleum resin, 5-20 parts of thermally sensitive resin, 1-5 parts of a stabilizer, 5-20 parts of a plasticizer and 1-3 parts of an antioxidant. The thermoplastic elastomer polymer in the embodiment of the invention has an effect of enhancing and toughening the modifier, so that the high/low-temperature service performance of the modifier can be ensured; the modified petroleum resin has strongly polar groups and is matched with the thermoplastic elastomer polymer, so that the viscosity of asphalt at a service temperature can be obviously improved, and the pavement performance of the mixture is ensured; the thermally sensitive resin has the characteristic of excellent temperature sensitivity and is matched with the plasticizer andthe stabilizer, so that the applicable viscosity of the asphalt at a high temperature can be effectively reduced, and the construction workability of the mixture is improved; and moreover, since thehigh temperature viscosity is reduced, the melting dispersion characteristic of the modifier can be improved.

Description

technical field [0001] The invention relates to the technical field of asphalt mixture additives, in particular to a modifier, a preparation method and an application thereof. Background technique [0002] In recent years, drainage road pavement technology represented by drainage pavement and ultra-thin overlay has been widely used. This open-graded, large-gap pavement structure can reduce the noise generated by vehicles during driving, and can timely Eliminate the water film on the road surface in rainy days, reduce glare, and improve driving safety and comfort. In order to ensure that the drainage mixture has good high temperature anti-rutting, anti-scattering and durability, the cement must use high-viscosity asphalt. [0003] Most of the high-viscosity modifier products currently on the market can meet the 60°C dynamic viscosity index requirements of modified asphalt (greater than 50000Pa s), even reaching more than 100000Pa s, but in the process of mixing and construct...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L57/02C08L27/06C08L45/00C08L33/20C08L91/00C08L23/16C08L23/12C08K5/12C08K5/134C08K5/57C08K3/06C04B24/26C04B24/40
CPCC04B40/0039C08L23/12C08L23/16C08L53/02C08L53/025C08L95/00C08L2205/03C08L2205/035C08L57/02C08L27/06C08K5/12C08K5/1345C08L45/00C08L33/20C08L91/00C08K5/57C08K3/06C04B24/2676C04B24/26C04B24/2682C04B24/045C04B2103/0068C04B26/26C04B24/2611C04B24/2652C04B24/40C04B24/001
Inventor 杨屹东郭留杰李强陈科宇郭银涛
Owner ROADMAINT CO LTD
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