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Anti-aging modified asphalt, preparation method thereof and modified asphalt waterproof coiled material

A modified asphalt and anti-aging technology, which is applied in the fields of textiles and papermaking, building insulation materials, building components, etc., can solve the problems such as the decline of the waterproof effect of the waterproof membrane, the uneven quality of the membrane, and the reduction of the speed of the production line. Waterproof service life, improved peel strength, and improved environmental protection

Pending Publication Date: 2022-07-01
HUIZHOU ORIENTAL YUHONG BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of modified asphalt waterproofing membranes in the domestic market, and the quality of the membranes is even more uneven. Among them, the raw materials in production are the key factors that directly affect the waterproofing performance of the membranes. At present, there are many production systems of modified asphalt waterproofing membranes in China. Produce petroleum asphalt with modifiers, fillers, additives, etc. Among them, the waterproof membrane is often subject to the fact that the light components in petroleum asphalt are volatile or gradually change into macromolecules, resulting in aging of modified asphalt and waterproofing of modified asphalt The waterproof effect of the coil is reduced; secondly, because the aging resistance of the modified asphalt is improved by adding a high modifier, the resistance of the production process will be increased accordingly, resulting in narrowing of the tire base. In order to avoid the narrowing of the tire base, the production line is often lowered Therefore, in order to ensure the production efficiency of modified asphalt coils and improve the aging resistance of modified asphalt, it is necessary to conduct research on raw materials and technology development

Method used

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  • Anti-aging modified asphalt, preparation method thereof and modified asphalt waterproof coiled material
  • Anti-aging modified asphalt, preparation method thereof and modified asphalt waterproof coiled material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of aging-resistant modified asphalt

[0041] Add 15 parts by weight of solid asphalt and 15 parts by weight of hydrogenated oil to 25 parts of AH90 asphalt at 80 to 100 ° C, respectively, then heat up to 150 to 180 ° C, add 5 parts of SBS and 3 parts of low-temperature modified powder , maintained at 180 ℃, after the modifier is completely swollen, add 3 parts of additives, after the reaction is complete, add 25 parts of stone powder and stir evenly at 170-180 ℃ to obtain aging-resistant modified asphalt.

[0042] (2) Preparation of anti-aging modified asphalt waterproofing membrane

[0043] The aging-resistant modified asphalt is discharged at 175-180 ℃ and coated on the upper and lower surfaces of the dipped and squeezed polyester tire base, and then covered with polyethylene film, cooled, shaped, and rolled to obtain a polymer modified asphalt. Bitumen waterproofing membrane.

Embodiment 2

[0045] (1) Preparation of aging-resistant modified asphalt

[0046] Add 18 parts by weight of solid asphalt and 18 parts by weight of hydrogenated oil to 20 parts of AH90 asphalt at 80 to 100 ° C, respectively, then heat up to 150 to 180 ° C, add 10 parts of SBS and 3 parts of low-temperature modified powder , maintained at 180 ℃, after the modifier is completely swollen, add 3 parts of additives, after the reaction is complete, add 25 parts of stone powder and stir evenly at 170-180 ℃ to obtain aging-resistant modified asphalt.

[0047] (2) Preparation of anti-aging modified asphalt waterproofing membrane

[0048] Same as Example 1.

Embodiment 3

[0050] (1) Preparation of aging-resistant modified asphalt

[0051] Add 10 parts by weight of solid asphalt and 15 parts by weight of hydrogenated oil to 30 parts of AH90 asphalt at 80 to 100 ° C, respectively, then heat up to 150 to 180 ° C, add 8 parts of SBS and 3 parts of low-temperature modified powder , maintained at 180 ℃, after the modifier is completely swollen, add 3 parts of additives, after the reaction is complete, add 25 parts of stone powder and stir evenly at 170-180 ℃ to obtain aging-resistant modified asphalt.

[0052] (2) Preparation of anti-aging modified asphalt waterproofing membrane

[0053] Same as Example 1.

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Abstract

The invention belongs to the field of waterproof coiled materials, and particularly relates to anti-aging modified asphalt, a preparation method thereof and a modified asphalt waterproof coiled material. The anti-aging modified asphalt comprises solid asphalt, petroleum asphalt, hydrogenated oil, SBS, an auxiliary agent and an inorganic filler. According to the anti-aging modified asphalt disclosed by the invention, a compatibility system of the solid asphalt matched with the hydrogenated oil and the petroleum asphalt is used, and the problem that the current modified asphalt is relatively fast in attenuation is solved through the reaction effect of the auxiliary agent and the system, so that the low-temperature flexibility limit is improved compared with the original pure petroleum asphalt system; the attenuation degree of the aged modified asphalt is greatly reduced, and the peel strength of the modified asphalt is improved.

Description

technical field [0001] The invention belongs to the field of waterproof coiled materials, and more particularly, relates to an aging-resistant modified asphalt and a preparation method thereof, and a modified asphalt waterproofing coiled material. Background technique [0002] At present, there are many varieties of modified asphalt waterproofing membranes in the domestic market, and the quality of the membranes is even more uneven. Among them, the raw materials in the production are the key factors that directly affect the waterproofing performance of the membranes. At present, there are many production systems of modified asphalt waterproofing membranes in China. For the production of petroleum asphalt with modifiers, fillers, additives, etc., the waterproofing membrane is often subject to the volatile or gradual change of light components in petroleum asphalt to macromolecules, resulting in the aging of the modified asphalt, and the waterproofing of the modified asphalt. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L91/00C08K3/013C08K5/18D06N5/00
CPCC08L95/00D06N5/003D06N5/006C08L53/02C08L91/00C08K3/013C08K5/18
Inventor 贝甲平张超周俊毅张俟
Owner HUIZHOU ORIENTAL YUHONG BUILDING MATERIALS