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A direct-throwing high-viscosity toughness high-viscosity modifier and its preparation method

A direct-input, high-viscosity technology, applied in the field of asphalt modifiers, can solve the problems of reduced viscosity and toughness of asphalt mixtures, improve the high-temperature bonding performance of asphalt, use simple methods, and improve road rutting

Active Publication Date: 2022-06-28
山东高速集团有限公司创新研究院 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problem that the viscosity and toughness of the asphalt mixture is reduced due to the addition of solvent oil to the existing modifiers, the present invention proposes a direct-throwing high-viscosity, toughness and high-viscosity modifier, which ensures good flow without adding solvent oil and dispersing performance, also has high viscosity toughness and high viscosity performance

Method used

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  • A direct-throwing high-viscosity toughness high-viscosity modifier and its preparation method
  • A direct-throwing high-viscosity toughness high-viscosity modifier and its preparation method
  • A direct-throwing high-viscosity toughness high-viscosity modifier and its preparation method

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Effect test

Embodiment 1

[0025] This embodiment provides a direct-throwing high-viscosity and high-viscosity modifier, which is mainly prepared from the following components in parts by weight: 20 parts of Pebax elastomer, 8.5 parts of polyglycolic acid resin, 70 parts of parts of K resin, 0.5 part of erucamide, 0.5 part of antioxidant 1010, 0.5 part of talc.

[0026] The present embodiment also provides a preparation method of the modifier, which specifically includes the following steps:

[0027] Step 1, the above-mentioned corresponding parts by weight of Pebax elastomer, polyglycolic acid resin, K resin, erucamide, and antioxidant 1010 were mixed in a high-speed mixer for 60min, and the rotating speed was 500rpm. Mixture.

[0028]In step 2, the mixture is melted and kneaded in a twin-screw extruder, the extrusion temperature is 180 ° C, the screw speed is 300 rpm, and then extruded. After cooling and drying, talcum powder is added to obtain a direct-throwing type with high viscosity, toughness an...

Embodiment 2

[0030] This embodiment provides a direct-throwing high-viscosity and high-viscosity modifier, which is mainly prepared from the following components in parts by weight: 35 parts of Pebax elastomer, 13.5 parts of polyglycolic acid resin, 50 parts of parts of K resin, 0.7 parts of erucamide, 0.3 parts of antioxidant 168, 0.5 parts of diatomaceous earth.

[0031] The present embodiment also provides a preparation method of the modifier, which specifically includes the following steps:

[0032] Step 1, the above-mentioned corresponding parts by weight of Pebax elastomer, polyglycolic acid resin, K resin, erucamide, and antioxidant 168 are mixed in a high-speed mixer for 60min, and the rotating speed is 500rpm. Mixture.

[0033] In step 2, the mixture is melted and kneaded in a twin-screw extruder, the extrusion temperature is 180 ° C, the screw speed is 300 rpm, and then extruded, and the anti-adhesive diatomite is added after cooling and drying to obtain a direct injection type....

Embodiment 3

[0035] This embodiment provides a direct-injection high-viscosity and high-viscosity modifier, which is mainly prepared from the following components in parts by weight: 50 parts of Pebax elastomer, 18.2 parts of polyglycolic acid resin, 30 parts of parts K resin, 1 part erucamide, 0.4 part antioxidant 246, 0.4 part talc.

[0036] The present embodiment also provides a preparation method of the modifier, which specifically includes the following steps:

[0037] Step 1, the above-mentioned corresponding parts by weight of Pebax elastomer, polyglycolic acid resin, K resin, erucamide, and antioxidant 246 were mixed in a high-speed mixer for 60 min, and the rotating speed was 500 rpm. Mixture.

[0038] In step 2, the mixture is melted and kneaded in a twin-screw extruder, the extrusion temperature is 180 ° C, the screw speed is 300 rpm, and then extruded. Toughness high viscosity modifier.

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Abstract

The present invention proposes a direct-throwing high-viscosity, toughness, and high-viscosity modifier and a preparation method thereof. The direct-throwing high-viscosity, toughness, and high-viscosity modifier is mainly prepared from the following components in parts by weight : 20-50 parts of Pebax elastomer, 5-20 parts of polyglycolic acid resin, 40-70 parts of K resin, 0.5-1 part of erucamide, 0.3-0.5 parts of antioxidant, 0.3-0.5 parts Anti-adhesive. The direct-throwing high-viscosity toughness and high-viscosity modifier can improve the high-temperature bonding performance, anti-aging performance and elastic recovery ability of asphalt. Concrete has better fatigue resistance and thermal stability, and also maintains good comprehensive performance.

Description

technical field [0001] The invention relates to the field of asphalt modifiers, in particular to a direct-throwing high-viscosity-toughness-high-viscosity modifier and a preparation method thereof. Background technique [0002] Highway polymer modifiers mainly include polyolefins, ethylene-vinyl acetate copolymers and rubber polymers, and the paving methods mainly include hot mixing and direct casting. The hot mix process is a high temperature dispersion process, which requires a lot of energy and also causes certain aging of the asphalt. After the modified asphalt is completed, it may be stored for a certain period of time, and the process will cause certain segregation, especially for high-viscosity modified asphalt, resulting in an uneven situation in which the upper part of the asphalt irrigation has higher viscosity and the lower part has lower viscosity. The direct modifier is directly put into the mixing tank, and can be melted evenly during the mixing process with t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08L87/00C08L67/04C08K5/20C08K3/34C08L95/00C08K13/02C08K5/134C08K13/04C08K7/26C08K5/526C08K5/13C04B26/26
CPCC08L53/02C08L87/005C08L95/00C04B26/26C08L2205/03C08L2205/035C08L67/04C08K13/02C08K5/20C08K3/34C08K5/1345C08K13/04C08K7/26C08K5/526C08K5/13C04B14/00C04B24/32C04B24/2676C04B24/124C04B24/283C04B2103/608C04B2103/0068
Inventor 穆明浩李朝旭张哲王川耿立涛王峥王孜健刘新强栗剑赵景原刘占斌郑君陈秀秀王盼郑捷元杨茂君
Owner 山东高速集团有限公司创新研究院
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