Anti-corrosion photovoltaic cable coating and preparation method thereof

A photovoltaic cable and anti-corrosion technology, applied in the direction of anti-corrosion coatings, coatings, epoxy resin coatings, etc., can solve problems such as difficulty in fully exerting anti-corrosion performance and enhancement effect, poor dispersion and compatibility, and limited use effect, etc. Achieve excellent chemical stability, improved dispersion and compatibility, and good reinforcement effects

Inactive Publication Date: 2020-11-03
江苏大地电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since graphene and graphene oxide are prone to agglomeration, their dispersion and compatibility in the epoxy resin matrix are poor

Method used

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  • Anti-corrosion photovoltaic cable coating and preparation method thereof
  • Anti-corrosion photovoltaic cable coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An anti-corrosion photovoltaic cable coating, comprising the following components in parts by weight: 20 parts of epoxy resin, CeO 2 0.02 parts of @GO composite powder, 8 parts of diluent acetone, 1.5 parts of acid anhydride curing agent, 0.1 part of silicone defoamer, 0.1 part of polyether modified organosiloxane leveling agent.

[0024] Among them, the CeO 2 The preparation of @GO composite powder includes the following steps:

[0025] a) Graphene oxide (GO) was synthesized by the improved Hummers method, and the specific operation was as follows: mix graphite powder and sodium nitrate, add concentrated sulfuric acid, stir at a temperature of 4°C for 30min, and then slowly add potassium permanganate, wherein The proportion of graphite powder, sodium nitrate, concentrated sulfuric acid and potassium permanganate is 2g: 1g: 100mL: 10g, continue to stir for 2 hours to make it evenly mixed, and move the mixed reactants into a preheated 35°C constant temperature water bat...

Embodiment 2

[0030]An anti-corrosion photovoltaic cable coating, comprising the following components in parts by weight: 40 parts of epoxy resin, CeO 2 5 parts of @GO composite powder, 20 parts of diluent ethanol, 8 parts of amine curing agent, 0.5 part of silicone defoamer, 0.5 part of polyether modified organosiloxane leveling agent.

[0031] Among them, the CeO 2 The preparation of @GO composite powder includes the following steps:

[0032] a) adopt improved Hummers method to synthesize and obtain graphene oxide (GO), concrete operation is the same as embodiment 1;

[0033] b) For nano-CeO 2 The surface is modified, in which the silane coupling agent KH550 and nano-CeO 2 The mass ratio is 1:1, and other operations are with embodiment 1;

[0034] c) Preparation of CeO 2 @GO composite powder, the specific operation is the same as in Example 1;

[0035] The preparation method of a kind of anti-corrosion photovoltaic cable coating comprises the following steps: weighing epoxy resin, C...

Embodiment 3

[0037] An anti-corrosion photovoltaic cable coating, comprising the following components in parts by weight: 30 parts of epoxy resin, CeO 2 2.5 parts of @GO composite powder, 14 parts of diluent acetone, 5 parts of anhydride curing agent, 0.3 parts of silicone defoamer, and 0.6 parts of polyether modified organosiloxane leveling agent.

[0038] Among them, the CeO 2 The preparation of @GO composite powder includes the following steps:

[0039] a) adopt improved Hummers method to synthesize and obtain graphene oxide (GO), concrete operation is the same as embodiment 1;

[0040] b) For nano-CeO 2 The surface is modified, and the silane coupling agent is KH550 and nano-CeO 2 The mass ratio is 0.6:1, and other operations are with embodiment 1;

[0041] c) Preparation of CeO 2 @GO composite powder, the specific operation is the same as in Example 1;

[0042] The preparation method of a kind of anti-corrosion photovoltaic cable coating comprises the following steps: weighing e...

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Abstract

The invention provides an anti-corrosion photovoltaic cable coating. The anti-corrosion photovoltaic cable coating is prepared from the following components in parts by weight: 20-40 parts of epoxy resin, 0.02-5 part of CeO2@GO composite powder, 8-20 parts of a diluent, 1.5-8 parts of a curing agent, 0.1-0.5 part of a defoamer and 0.1-0.5 part of a leveling agent. The CeO2@GO composite powder is prepared by modifying graphene oxide GO by utilizing CeO2 nanoparticles through a surface grafting method, so that the CeO2 nanoparticles can be stably loaded on the surface of the GO and are insertedbetween GO laminates to play a role in blocking GO agglomeration, and the dispersity and compatibility of the GO in an epoxy resin matrix are improved; meanwhile, due to the existence of GO, a good support body is provided for the CeO2 nano particles, the CeO2 nano particles are promoted to be uniformly dispersed in an epoxy resin matrix, so that the GO and the CeO2 can better exert respective anti-corrosion effects and enhancing effects; therefore, the anti-corrosion performance of the coating is further improved, and the service life of the coating is prolonged. Furthermore, the comprehensive performances of waterproofness, corrosion resistance, weather resistance, chemical stability, adhesion and the like of the photovoltaic cable can be effectively ensured.

Description

technical field [0001] The invention relates to the field of photovoltaic cable materials, in particular to an anti-corrosion photovoltaic cable coating and a preparation method thereof. Background technique [0002] Photovoltaic cables in photovoltaic systems, as the main electrical components, are often used under harsh environmental conditions (such as high temperature, ultraviolet radiation, ozone, severe temperature changes and chemical erosion, etc.), so photovoltaic cables must have good high and low temperature resistance, UV resistance , weather resistance and ozone erosion resistance to ensure the service life of photovoltaic cables and even the entire photovoltaic system. Existing photovoltaic cables, in order to improve their weather resistance and corrosion resistance, usually improve the cable material and cable sheath material, and seldom use anti-corrosion organic coatings, even if coatings are used, their anti-corrosion properties are still lacking. [0003...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D163/00C09D7/62
CPCC09D5/08C09D163/00C09D7/62C08K2201/011C08K2003/2213C08L2203/202
Inventor 王剑英刘丹
Owner 江苏大地电缆有限公司
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