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Graphene oxide modified ammonia ester waterproof coating and preparation method thereof

A waterproof coating, graphene technology, applied in the field of coatings, to achieve the effects of improving mechanical properties, strong chemical bonding, and excellent aging resistance

Inactive Publication Date: 2019-01-08
WUXI HUICHENG GRAPHITE ALKENE TECH APPL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, most graphene oxide modified polyurethane waterproof coatings improve their performance through physical mixing, but the physical blending of modified waterproof coatings has certain limitations in improving their mechanical and other properties, especially compared to chemical mixing. For the formation of chemical bonds, the combination of chemical bonds formed by chemical mixing is stronger

Method used

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  • Graphene oxide modified ammonia ester waterproof coating and preparation method thereof

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Embodiment 1

[0031] A graphene oxide modified urethane waterproof coating comprises a first component and a second component. The parts by weight of the first component include 0-40 parts of toluene diisocyanate, 0-50 parts of isophorone diisocyanate, 100-112 parts of polyether diol, 1-2 parts of graphene oxide; the second component Parts by weight include 70-80 parts of polyether triol, 30-40 parts of 3-chloro-2,6-diethylaniline, 10-15 parts of talcum powder, 10-15 parts of castor oil, 1-2 parts of diethylaniline Dibutyltin laurate or stannous octoate, 10-15 parts of dioctyl phthalate, 1-2 parts of defoamer. Wherein, the polyether diol hydroxyl value of the first component is 56mgKOH / g; the polyether trihydric alcohol hydroxyl value of the second component is 56mgKOH / g; the talcum powder of the second component has a mesh number of 800 The purpose is ultrafine talcum powder; the graphene oxide of the first component is graphene oxide prepared by Hummers method. The various raw materials...

Embodiment 2

[0033] A graphene oxide modified urethane waterproof coating comprises a first component and a second component. The parts by weight of the first component include 40 parts of toluene diisocyanate, 100 parts of polyether glycol, and 2 parts of graphene oxide; the parts by weight of the second component include 70 parts of polyether trihydric alcohol, 30 parts of 3-chloro -2,6-Diethylaniline, 15 parts of talc, 10 parts of castor oil, 1 part of dibutyltin dilaurate, 10 parts of dioctyl phthalate, 2 parts of defoamer. Wherein, the polyether diol hydroxyl value of the first component is 56mgKOH / g; the polyether trihydric alcohol hydroxyl value of the second component is 56mgKOH / g; the talcum powder of the second component has a mesh number of 800 The purpose is ultrafine talcum powder; the graphene oxide of the first component is graphene oxide prepared by Hummers method. The various raw materials involved in the present invention are commercially available common raw materials f...

Embodiment 3

[0035] A graphene oxide modified urethane waterproof coating comprises a first component and a second component. The parts by weight of the first component include 50 parts of isophorone diisocyanate, 112 parts of polyether diol, and 1 part of graphene oxide; the parts by weight of the second component include 80 parts of polyether triol, 40 parts of 3-Chloro-2,6-diethylaniline, 10 parts talc, 15 parts castor oil, 2 parts stannous octoate, 15 parts dioctyl phthalate, 1 part defoamer. Wherein, the polyether diol hydroxyl value of the first component is 56mgKOH / g; the polyether trihydric alcohol hydroxyl value of the second component is 56mgKOH / g; the talcum powder of the second component has a mesh number of 800 The purpose is ultrafine talcum powder; the graphene oxide of the first component is graphene oxide prepared by Hummers method. The various raw materials involved in the present invention are commercially available common raw materials for the preparation of polyuretha...

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Abstract

The invention discloses graphene oxide modified ammonia ester waterproof coating and a preparation method thereof. The coating comprises a first component and a second component; the first component comprises 0 to 40 parts by weight of toluene diisocynate, 0 to 50 parts by weight of isophorone diisocyanate, 100 to 112 parts of polyether glycol and 1 to 2 parts of graphene oxide; and the second component comprises 70 to 80 parts by weight of polyether ternary alcohol, 30 to 40 parts by weight of 3-chlorine-2,6-diethyl aniline, 10 to 15 parts by weight of talcum powder, 10 to 15 parts by weightof castor oil, 1 to 2 parts of dibutyltin dilaurate or stannous octoate, 10 to 15 parts of dioctyl phthalate and 1 to 2 parts of a defoaming agent. The surface of the graphene oxide is provided with afunctional group such as hydroxy and can react with a polyurethane prepolymer and isocyanate to generate chain extension or crosslinking, the functional group such as hydroxyl exists among the graphene oxide sheet layers, the polyurethane prepolymer and the isocyanate are embedded among the sheet layers, a chemical bonding 'polyurethane prepolymer-graphene oxide-polyurethane prepolymer-graphene oxide' network structure is formed, and the mechanical strength of the polyurethane coating is improved.

Description

technical field [0001] The invention relates to a coating, in particular to a high-modulus polyurethane waterproof coating and a preparation method thereof. Background technique [0002] With the development of related industries in my country's road construction, the demand for high-performance waterproof coatings to meet the waterproof requirements of roads and bridges is also expanding. In order to meet the waterproof requirements of road construction, graphene oxide modified polyurethane waterproof coatings came into being. [0003] At present, most graphene oxide modified polyurethane waterproof coatings improve their performance through physical mixing, but the physical blending of modified waterproof coatings has certain limitations in improving their mechanical and other properties, especially compared to chemical mixing. For the formation of chemical bonds, the combination of chemical bonds formed by chemical mixing is stronger. Contents of the invention [0004...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D7/61C08G18/48C08G18/66C08G18/36
CPCC08G18/36C08G18/4812C08G18/4825C08G18/4829C08G18/6696C09D7/61C09D175/08C08K3/042C08K3/34
Inventor 余郑
Owner WUXI HUICHENG GRAPHITE ALKENE TECH APPL CO LTD
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