Application of hyper-branched polymer in improvement on cohesiveness of modified asphalt in water permeable asphalt pavement

A technology of tackifying resin and polyamide ester, which is applied in the direction of building structure, building components, building insulation materials, etc., and can solve problems such as poor bonding performance

Inactive Publication Date: 2016-09-21
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor bonding performa

Method used

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  • Application of hyper-branched polymer in improvement on cohesiveness of modified asphalt in water permeable asphalt pavement
  • Application of hyper-branched polymer in improvement on cohesiveness of modified asphalt in water permeable asphalt pavement
  • Application of hyper-branched polymer in improvement on cohesiveness of modified asphalt in water permeable asphalt pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] 1. Preparation of hyperbranched polymers.

[0035] (1) Weigh 8.646g of trimellitic anhydride and 5.994g of diisopropanolamine, first dissolve diisopropanolamine in 40mL of DMAc, dissolve it and pour it into a three-necked flask, then dissolve trimellitic anhydride with 40ml of DMAc, and then slowly drop it into three In the bottle, react at room temperature for 3h under stirring to obtain AB 2 type monomer.

[0036] (2) Then add 30mL toluene to the three-necked flask first, and then add 0.746 triethanolamine as the nuclear molecule (nuclear molecule and AB 2 The molar ratio of type monomer is 1:9), then add 0.054g p-toluenesulfonic acid, heat to 130°C to condense and reflux for 24 hours, separate the generated water with a water separator, and finally purify by vacuum distillation. This product is the second Substitute hydroxyl-terminated hyperbranched polymers; (before the second step of reaction, inject toluene into the water separator to the return port).

[0037]...

Embodiment approach 2

[0043] 1. Preparation of hyperbranched polymers.

[0044] (1) Weigh 20.174g of trimellitic anhydride and 13.985g of diisopropanolamine, first dissolve diisopropanolamine in 60mL of DMAc, dissolve it and pour it into a three-necked flask, then dissolve trimellitic anhydride in 60ml of DMAc, and then slowly drop it into three In the bottle, react at room temperature for 3h under stirring to obtain AB 2 type monomer.

[0045] (2) Then add 70mL toluene to the three-necked flask first, and then add 0.746 triethanolamine as the nuclear molecule (nuclear molecule and AB 2 The molar ratio of type monomer is 1:21), then add 0.163g p-toluenesulfonic acid, heat to 130°C, condense and reflux for 24h, separate the generated water with a water separator, and finally purify it by distillation under reduced pressure. This product is the third Substitute hydroxyl-terminated hyperbranched polymers; (before the second step of reaction, inject toluene into the water separator to the return port...

Embodiment approach 3

[0052] 1. Preparation of hyperbranched polymers.

[0053] (1) Weigh 43.229g of trimellitic anhydride and 29.968g of diisopropanolamine, first dissolve diisopropanolamine in 80mL of DMAc, dissolve it and pour it into a three-necked flask, then dissolve trimellitic anhydride in 80ml of DMAc, and then slowly drop it into three In the bottle, react at room temperature for 3h under stirring to obtain AB 2 type monomer.

[0054] (2) Then add 150mL toluene to the three-necked flask first, and then add 0.746 triethanolamine as the nuclear molecule (nuclear molecule and AB 2 The molar ratio of type monomer is 1:45), then add 0.352g p-toluenesulfonic acid, heat to 130°C, condense and reflux for 24h, separate the generated water with a water separator, and finally purify by vacuum distillation. This product is the fourth Substitute hydroxyl-terminated hyperbranched polymers; (before the second step of reaction, inject toluene into the water separator to the return port).

[0055] (3) ...

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Abstract

The invention relates to the technical field of modified asphalt in a water permeable asphalt pavement and especially relates to an application of polyamide ester in improvement on the cohesiveness of the modified asphalt. In the invention, firstly hyper-branched polyamide ester with the terminal being a hydroxyl group is synthesized, and then the polyamide ester is reacted with methyl acrylate to obtain an aromatic hyper-branched polyamide ester terminated by a double bond. The compound has many branches and has a three-dimensional stereo structure, has excellent solubility with a substrate and can effectively fix an asphalt substrate. A test proves that the modified asphalt doped with the hyper-branched polymer is significantly improved in high-temperature resistance and cohesiveness.

Description

technical field [0001] The invention relates to the technical field of modified asphalt, in particular to the application of hyperbranched polymers for increasing the bonding performance of modified asphalt. Background technique [0002] Asphalt permeable pavement is mostly paved with porous materials such as asphalt mixture. Compared with traditional dense pavement, it has the following advantages: quickly remove water on the road surface in rainy days, avoid night reflections, and improve driving safety; the porous structure of permeable pavement not only reduces The unevenness of the road surface also increases the depth of the anti-skid structure of the road surface; in addition, the permeable pavement also has ecological environmental effects such as replenishing groundwater, regulating surface temperature and humidity, and alleviating urban heat islands. Therefore, asphalt permeable pavement has great application prospects in our country. [0003] At present, the main...

Claims

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Application Information

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IPC IPC(8): C08G83/00C08L95/00C08L87/00C08L53/02C08K3/34
CPCC08G83/005C08L95/00C08L2205/035C08L87/00C08L53/02C08K3/34
Inventor 寿崇琦蒋传磊李培王德卫张宇
Owner UNIV OF JINAN
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