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Hot-melt asphalt adhesive and its production

A technology of adhesives and asphalt, which is applied in the direction of asphalt material adhesives, adhesives, adhesive types, etc., can solve the problems of slow bonding speed and low viscosity of emulsified asphalt, and achieve fast bonding speed, simple production process, durable good impact effect

Active Publication Date: 2009-12-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the fixing speed of emulsified asphalt is relatively slow and the viscosity is low, so it is only suitable for normal temperature laying construction of wooden floors, fiber floors and composite floors

Method used

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  • Hot-melt asphalt adhesive and its production
  • Hot-melt asphalt adhesive and its production
  • Hot-melt asphalt adhesive and its production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method of base asphalt: put the raw material of road petroleum asphalt (penetration = 701 / 10mm) into the reaction kettle, heat it, feed oxygen at 245°C, and react for 12 hours to make oxidized asphalt, which is the base asphalt. The properties of the obtained base pitch are as follows: the penetration is 241 / 10mm, and the softening point is 68°C.

Embodiment 2

[0035] Composition of hot melt asphalt adhesive:

[0036] Base bitumen 100 parts

[0037] 4 copies of SBS

[0038] 6 parts petroleum resin

[0039] Aluminum oxide 15 parts

[0040] Silicon oxide 30 parts

[0041] Sublimed sulfur 0.12 parts

[0042] Its preparation process is as follows:

[0043] Add the above-mentioned weighed base asphalt, SBS, and petroleum resin into the reaction kettle, heat to 175°C, stir for 2 hours at a stirrer speed of 4000 rpm, and then add alumina, Silicon oxide and cross-linking agent, continue to stir for 2 hours, the stirring speed is 2000 rpm, after the stirring process is completed, the material can be discharged, cooled to room temperature, and the target product is obtained. The resulting product has moderate and stable viscosity, and its properties are shown in Table 1.

[0044] Table 1 Hot melt asphalt adhesive

[0045]

Embodiment 3

[0047] Composition of hot melt asphalt adhesive:

[0048] Base bitumen 100 parts

[0049] 5 copies of SBS

[0050] 2 parts petroleum resin

[0051] Aluminum oxide 30 parts

[0052] Silicon oxide 2 parts

[0053] Sublimed sulfur 0.14 parts

[0054] Its preparation process is as follows:

[0055] Add the above-mentioned weighed base asphalt, SBS, and petroleum resin into the reaction kettle, heat to 160°C, stir for 40 minutes at a stirrer speed of 6000 rpm, and then add alumina, Silicon oxide and cross-linking agent, continue to stir for 4 hours, the stirring speed is 800 rpm, after the stirring process is completed, the material can be discharged, cooled to room temperature, and the target product is obtained. The resulting product has moderate and stable viscosity, and its properties are shown in Table 2.

[0056] Table 2 Hot melt asphalt adhesive

[0057]

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Abstract

The invention relates to an adhesive for hot-melt asphalt road studs on road surfaces and a preparation method thereof. parts, 0.1-0.5 parts of crosslinking agent, etc. are mixed and melted. Good adhesion to concrete and asphalt pavement. The service life is long, the processing process is simple, the cost is low, the construction is easy, and it can be used repeatedly.

Description

technical field [0001] The invention relates to a hot-melt asphalt adhesive and a preparation method thereof, which are suitable for thermal bonding of road studs on traffic roads and other marking materials. Background technique [0002] As a road auxiliary marking facility, road studs are widely used on various roads. Because of its low cost and good effect on special road sections, it is widely used in some road sections. Hot-melt asphalt road stud adhesive is mainly used for the bonding of this type of road stud, and can also be used for the bonding of deceleration ridges, etc. Traditional asphalt road stud adhesives mostly use construction asphalt, cement mortar and resin. In the process of use, construction asphalt is easy to soften at high temperature and brittle at low temperature, and the bonding effect is not good; after the cement mortar is cured, it is easily cracked by vibration and loses bonding ability; the resin is brittle and the low temperature bonding is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J195/00
Inventor 徐青柏陈杰范思远李欣宁爱民徐前康
Owner CHINA PETROLEUM & CHEM CORP
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