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Solvent-free polymer coating and preparation method thereof

A polymer and solvent-free technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of pollution, non-waterproof paint film and other problems, and achieve the effect of smooth coating film, convenient spraying and low cost

Pending Publication Date: 2021-06-18
SHANGHAI DONGJIE POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The embodiment of the present application provides a solvent-free polymer coating, which solves the technical problem that the organic solvent of the polymer coating in the prior art will be polluted when the organic solvent volatilizes, and the water-based coating formula will contain an emulsifier, which will cause the paint film to be not waterproof and increase the cost. , to achieve the technical effect of no solvent, no pollution and waterproof function

Method used

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  • Solvent-free polymer coating and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0064] In this embodiment, the solvent-free polymer coating is prepared from the following components by weight percentage:

[0065] Tricyclopentadiene, 99%;

[0066] Dicyclopentadiene, 0.5%;

[0067] Ruthenium carbene catalyst, 0.15%;

[0068] Titanium dioxide, 0.25%;

[0069] Hydroxyphenyl-s-triazine, 0.1%.

[0070] In the present embodiment, the preparation method of solvent-free polymer coating is as follows:

[0071] Step S1: Prepare raw materials into two components:

[0072] Component 1: tricyclopentadiene and dicyclopentadiene;

[0073] Component 2: zinc oxide, hydroxyphenyl-s-triazine, ruthenium carbene catalyst;

[0074] Step S2: Component 1 is solid at room temperature, first heating Component 1 to 80° C. to melt Component 1 into a liquid state. Then component 1 and component 2 were mixed, stirred for 50 minutes, tricyclopentadiene and dicyclopentadiene were polymerized under the action of ruthenium carbene catalyst, white pigment titanium dioxide and ultravi...

Embodiment 2

[0076] In this embodiment, the solvent-free polymer coating is prepared from the following components by weight percentage:

[0077] Tricyclopentadiene, 76%;

[0078] Dicyclopentadiene, 20%;

[0079] Tetracyclopentadiene, 0.4%;

[0080] CpTiCl 2 , 0.15%;

[0081] CH 3 MgI, 0.45%.

[0082] Carbon black, 2%;

[0083] 2-Methylenebis(4-methyl-6-tert-butylphenol), 1%.

[0084] In the present embodiment, the preparation method of solvent-free polymer coating is as follows:

[0085] Step S1: Prepare raw materials into two components:

[0086] Component 1: tricyclopentadiene, dicyclopentadiene and tetracyclopentadiene;

[0087] Component 2: Zinc chrome yellow, 2-methylenebis(4-methyl-6-tert-butylphenol), CH 3 MgI, CpTiCl 2 ;

[0088] Step S2: Component 1 is solid at room temperature, first heating Component 1 to 75° C. to melt Component 1 into a liquid state. Then component 1 and component 2 were mixed, stirred for 60min, and tricyclopentadiene, dicyclopentadiene and tetr...

Embodiment 3

[0090] In this embodiment, the solvent-free polymer coating is prepared from the following components by weight percentage:

[0091] Tricyclopentadiene, 60%;

[0092] Dicyclopentadiene, 32.9%;

[0093] Pentacyclopentadiene, 0.094%;

[0094] ReCls, 0.002%;

[0095] (CH 3 ) 4 Sn, 0.004%.

[0096] Carbon black, 0.5%;

[0097] Titanium dioxide, 4.5%;

[0098] Sodium polyacrylate, 2%.

[0099] In the present embodiment, the preparation method of solvent-free polymer coating is as follows:

[0100] Step S1: Prepare raw materials into two components:

[0101] Component 1: tricyclopentadiene, dicyclopentadiene, pentacyclopentadiene;

[0102] Component 2: chromium oxide green, sodium polyacrylate, ReCls, (CH 3 ) 4 Sn;

[0103] Step S2: component 1 is liquid at normal temperature, component 1 and component 2 are mixed, stir 55min, tricyclopentadiene, dicyclopentadiene, pentacyclopentadiene are in catalyst ReCls, (CH 3 ) 4 Polymerization under the action of Sn, pigment car...

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Abstract

The invention discloses a solvent-free polymer coating and a preparation method thereof. The solvent-free polymer coating is prepared from the following components: a base material which adopts a polytricyclopentadiene resin system, a pigment, and an auxiliary agent. The polytricyclopentadiene resin system is prepared from the following components: tricyclopentadiene, and a resin polymerization catalyst. The weight percentage of tricyclopentadiene in the polytricyclopentadiene resin system is greater than or equal to 50% and less than 100%. A polytricyclopentadiene resin system is used as a base material of the coating, and polytricyclopentadiene is low in viscosity and can be freely sprayed out, extended and leveled, so that an organic solvent does not need to be added into the coating, the pollution risk is avoided, water and an emulsifier do not need to be added, and the coating has the technical effects of environment friendliness, water resistance, low cost and the like. In addition, the coating also has the excellent characteristics of acid resistance, alkali resistance, brine corrosion resistance and the like, and is particularly suitable for coastal cities, wharfs, ships, submarines and other marine equipment.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a solvent-free, pollution-free and waterproof polymer coating. Background technique [0002] Coatings are generally composed of base materials, pigments (including fillers), solvents and a small amount of additives. [0003] Coating is a multi-component system and a formula product. The selection and dosage of each component in the coating formula have a great impact on the performance, film performance and cost of the coating. Therefore, it is necessary to carry out the formulation of the coating scientific design. [0004] The formulations of existing polymer coatings (such as polyurethane coatings) usually contain organic solvents. This is because the viscosity of polymer materials is very high. If no solvent is added, the coating cannot be sprayed out, extended and leveled. Organic solvents commonly used in polymer coatings include toluene, acetone, phenol, ethanol, turpen...

Claims

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Application Information

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IPC IPC(8): C09D165/00C09D5/08C09D7/61
CPCC09D165/00C09D5/08C09D7/61C08K2003/2241C08K3/22C08K3/04
Inventor 刘东立
Owner SHANGHAI DONGJIE POLYMER MATERIAL