Copper-free antifouling paint for coastal oil and gas pipelines in static environment and preparation method of copper-free antifouling paint
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An antifouling coating and static environment technology, applied in the field of coatings, can solve the problems of antifouling coating environmental hazards, poor static antifouling performance, etc., and achieve good self-polishing performance, long antifouling period, and simple technical solutions Effect
Active Publication Date: 2022-05-13
中石化石油工程技术服务有限公司 +2
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[0006] The purpose of the present invention is to solve the potential environmental hazards and poor static antifouling performance of current antifouling coatings, and provide a copper-free antifouling coating for static environments such as coastal pipelines. This coating is independently invented by the research group. Zinc acrylic resin with self-polishing properties is combined with zinc abietate resin, and with the help of the good flexibility and adhesion of zinc acrylic resin and the remarkable hydrophobicity of zinc abietate resin, the fusion of resin structure and function is realized, which can be more Good antifouling performance
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preparation Embodiment 1
[0027] Preparation Example 1: Preparation of Acrylic Zinc Resin Antifouling Paint
[0028] Mix acrylic acid zinc resin, chlorinated paraffin, chlorothalonil, zinc pyrithione, red iron oxide, and xylene according to parts by weight of 40, 15, 10, 10, 5, and 20. Filtration is performed, and the resulting filtrate is an antifouling paint based on zinc acrylate resin.
preparation Embodiment 2
[0029] Preparation Example 2: Preparation of Antifouling Paint Based on Zinc Abietic Acid Resin
[0030] Mix abietic acid zinc resin, chlorinated paraffin, vaseline, chlorothalonil, copper zinc pyrithione, iron oxide red, and xylene according to parts by weight of 40, 10, 5, 10, 10, 5, and 20, and grind them thoroughly. Filter with a 100-mesh filter, and the resulting filtrate is an antifouling coating based on zinc abietate resin.
preparation Embodiment 3
[0031] Preparation Example 3: Preparation of antifouling coating based on zinc acrylate and zinc abietate composite resin (the weight ratio is 70:30)
[0032] Mix zinc acrylate and zinc abietic acid composite resin (the weight ratio is 70:30), vaseline, chlorothalonil, zinc zinc, iron oxide red, and xylene according to 50, 5, 10, 5, 10, and 20 parts by weight Evenly and fully ground, filter with a 100-mesh filter, and the obtained filtrate is an antifouling coating based on zinc acrylate and zinc abietic acid composite resin (the weight ratio is 70:30).
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Abstract
The invention relates to a copper-free antifouling paint for coastal oil and gas pipelines in a static environment, which consists of the following components in parts by weight: 20-60 parts of resin, 1-20 parts of organic antifouling agent, 1-20 parts of plasticizer, 1-30 parts of filler and 20-60 parts of solvent. The resin is composite resin compounded by zinc acrylate resin and zinc abietate resin, and the weight part of each component in the composite resin is not less than 20%. The preparation method comprises the following steps: grinding the components in parts by weight in a container, and filtering with a 100-mesh filter to obtain filtrate, namely the copper-free antifouling paint. According to the antifouling paint, the self-polishing performance of the zinc acrylate resin and the zinc abietate resin can be achieved, the hydrophobic performance of the zinc abietate resin has a synergistic effect for preventing fouling, and the antifouling period can reach 24 months or above due to the excellent flexibility and adhesiveness of a coating film. The coating does not contain cuprous oxide, has small harm to the environment, and accords with the development trend of environment-friendly antifouling coatings.
Description
technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a copper-free antifouling coating used in the static environment of an offshore oil and gas pipeline and a preparation method thereof. Background technique [0002] Once marine equipment and facilities enter the seawater environment, microbial mucous membranes will rapidly form on their surfaces and eventually lead to biofouling, seriously affecting their normal service, and even causing safety accidents and huge economic losses. Among them, the biofouling problem faced by equipment and facilities in the static marine environment, such as offshore oil and gas pipelines, offshore oil and gas exploration and development equipment, and marine environmental monitoring equipment, is more severe. For example, the marine organisms attached to the standpipe section of the offshore oil and gas pipeline and the flat pipe scour the suspended section will increase the marine env...
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