Hot melt adhesive modified asphalt

A technology for modifying asphalt and hot-melt adhesives, which is applied in building components, building insulation materials, construction, etc., can solve the problems of high carcinogenic asphalt smoke and high energy consumption, and achieve the effect of less energy and good modification effect

Inactive Publication Date: 2018-01-19
HUIZHOU NENGHUI CHEM CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, asphalt can be completely melted at 135°C, the viscosity is lower than 3Pa s, and the fluidity is very good. Modified asphalt is used as an adhesive for waterproof membranes. The traditional modified asphalt process is heated at high temperature for a long time to plasticize and homogenizing polymers, which are used for modification. This process not only consumes a lot of energy, but also produces highly carcinogenic asphalt fumes during the heating process.

Method used

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  • Hot melt adhesive modified asphalt
  • Hot melt adhesive modified asphalt
  • Hot melt adhesive modified asphalt

Examples

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Effect test

preparation example Construction

[0027] see figure 1 , the preparation method of hot melt adhesive modified asphalt in one embodiment, comprises the steps:

[0028]S110: Mix ethylene-butadiene-styrene block copolymer, C9 petroleum resin, terpene resin, mineral oil, antioxidant, ultraviolet absorber and coupling agent to obtain hot melt adhesive; wherein, ethylene -The mass ratio of butadiene-styrene block copolymer, C9 petroleum resin, terpene resin, mineral oil, antioxidant, ultraviolet absorber and coupling agent is (20~40): (10~30) :(20~40):(20~40):(0.1~2):(0.1~2):(0.1~2).

[0029] S120: Mix the hot melt adhesive with asphalt, stone powder and antioxidant to obtain the hot melt adhesive modified asphalt, wherein the mass ratio of hot melt adhesive, asphalt, stone powder and antioxidant is (30-60 ): (30~60): (10~30): (0.1~2).

[0030] In order to further enhance the comprehensive performance of the hot-melt adhesive modified asphalt, for example, the hot-melt adhesive modified asphalt also includes a rei...

Embodiment 1

[0035] Ethylene-butadiene-styrene block copolymer 1kg, C9 petroleum resin 0.6kg, terpene resin 1.1kg, mineral oil 1.2kg, antioxidant 0.06kg, ultraviolet absorber 0.08kg and coupling agent 0.1kg Heat and mix in the reactor to obtain hot melt adhesive.

[0036] 4.5 kg of the hot melt adhesive, 4.4 kg of asphalt, 5.4 kg of stone powder and 0.05 kg of antioxidant were mixed to obtain the hot melt adhesive modified asphalt.

Embodiment 2

[0038] With ethylene-butadiene-styrene block copolymer 1.5kg, C9 petroleum resin 0.7kg, terpene resin 1.1kg, mineral oil 1.2kg, antioxidant 0.06kg, ultraviolet absorber 0.08kg and coupling agent 0.1 kg is heated and mixed in the reactor to obtain hot melt adhesive.

[0039] 5.2 kg of the hot melt adhesive, 4.4 kg of asphalt, 5.4 kg of stone powder and 0.05 kg of antioxidant were mixed to obtain the hot melt adhesive modified asphalt.

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Abstract

The invention relates to hot melt adhesive modified asphalt which comprises the following ingredients in parts by mass: 30-60 parts of asphalt, 30-60 parts of a hot melt adhesive, 10-30 parts of a stone powder and 0.1-2 parts of an antioxidant. According to the hot melt adhesive modified asphalt, the hot melt adhesive with better dispersity is prepared from difficultly molten resin ingredients inthe hot melt adhesive at an ordinary temperature in advance; the asphalt can be modified only by adding the hot melt adhesive during production of the hot melt adhesive modified asphalt; since the hotmelt adhesive can be dispersed into the asphalt more easily and uniformly, a better modification effect can be exerted; the asphalt is not required to be heated; consumed energy is less; asphalt smoke with high carcinogenicity cannot be generated.

Description

technical field [0001] The invention relates to the technical field of modified asphalt, in particular to a hot melt adhesive modified asphalt. Background technique [0002] Since the publication of GB 50108-2008 "Technical Specifications for Waterproofing of Underground Engineering" and GB / T 23457-2009 "Pre-laid / Wet-laid Waterproof Membrane", the application fields of polymer self-adhesive waterproof membranes have become wider and wider. [0003] Among them, asphalt can be completely melted at 135°C, the viscosity is lower than 3Pa s, and the fluidity is very good. Modified asphalt is used as an adhesive for waterproof membranes. The traditional modified asphalt process is heated at high temperature for a long time to plasticize And homogenized polymer, which is used for modification, this process not only consumes a lot of energy, but also produces highly carcinogenic asphalt fumes during the heating process. Contents of the invention [0004] Based on this, it is nece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L57/02C08L45/00C08L91/06
Inventor 吴兆辉江强郭亦彬陈灿坚
Owner HUIZHOU NENGHUI CHEM CO LTD
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