Special rubber powder for non-cured rubber asphalt waterproof coating and preparation method thereof

A technology of asphalt waterproof coating and non-curing rubber, which is applied in the field of waterproof coating to achieve the effect of stable performance and lower production and construction temperature

Inactive Publication Date: 2016-02-17
GUANGXI YUANJING RUBBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Regarding the rubber powder required for non-cured asphalt, there has been no relevant research report in China

Method used

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  • Special rubber powder for non-cured rubber asphalt waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]A special rubber powder for non-cured rubber asphalt waterproof coatings, made of the following raw materials in parts by weight:

[0038] Tire rubber powder above 10 mesh: 65.0%

[0039] Butyl rubber powder above 10 mesh: 20.0%

[0040] Polyalkylaromatic disulfides: 0.1%

[0041] Polyethylene wax: 1.0%

[0042] Obsidian dust: 13.9%.

Embodiment 2

[0044] A special rubber powder for non-cured rubber asphalt waterproof coatings, made of the following raw materials in parts by weight:

[0045] Tire rubber powder above 10 mesh: 50.0%

[0046] Butyl rubber powder above 10 mesh: 40.0%

[0047] 2,2-bis(6-tert-butyl-p-phenol) disulfide: 1.5%

[0048] Hard wax: 0.1%

[0049] Calcium Carbonate: 8.4%.

Embodiment 3

[0051] A special rubber powder for non-cured rubber asphalt waterproof coatings, made of the following raw materials in parts by weight:

[0052] Tire rubber powder above 10 mesh: 63.9%

[0053] Butyl rubber powder above 10 mesh: 20.0%

[0054] Polyalkylaromatic disulfides: 0.1%

[0055] Polyethylene wax: 1.0%

[0056] Talc: 15.0%.

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Abstract

The invention discloses special rubber powder for a non-cured rubber asphalt waterproof coating and a preparation method thereof. The special rubber powder is prepared from, by weight parts, 50-65% of tire rubber powder, 20-40% of butyl rubber powder, 0.1-1.5% of activator, 0.1-1.0% of viscosity reducer and 5-15% of separant. The preparation method comprises the following steps: 1) stirring the tire rubber powder and the butyl rubber powder; 2) heating the activator and spraying the activator to the rubber powder obtained in the step 1), and then performing stirring and pre-activation; 3) mixing the pre-activated rough rubber powder obtained in the step 2) with the viscosity reducer and the separant, forming fine rubber powder through grinding, sieving the fine rubber powder, and performing packaging to obtain the finished product. Through the compounding of the waste tire rubber powder and the butyl rubber powder, the performance can meet the creep property, cohesiveness, self-healing property and ageing resistance requirements of the non-cured rubber asphalt waterproof coating. The added amount of plasticizer and polymerization modifiers is reduced effectively, and the cost can be reduced by over 10%.

Description

technical field [0001] The invention belongs to the technical field of waterproof coatings, and in particular relates to a special rubber powder for non-curing rubber asphalt waterproof coatings and a preparation method thereof. Background technique [0002] Non-curing rubber asphalt waterproof coating is a new type of waterproof material. It uses rubber powder, asphalt and special additives as the main raw materials. It will not solidify after long-term exposure to air, that is, non-curing. Traditional modified asphalt waterproof materials (such as: road reformed asphalt, asphalt waterproof membrane, etc.) form a cured waterproof layer after construction, while non-cured rubber asphalt waterproof coatings are uncured waterproof layers. The uncured waterproof layer is due to Good creep, strong self-healing ability, reliable bonding and excellent aging resistance, can solve the problem of water channeling that is difficult to solve for the cured waterproof layer, and greatly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L23/22C08L23/06C08L91/06C08K5/372C08K5/375C08K3/34C08K3/26
CPCC08L21/00C08L2205/03C08L2207/24
Inventor 黄亮
Owner GUANGXI YUANJING RUBBER TECH
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