Surface protective agent for photovoltaic solder strip and preparing method of surface protective agent

A surface protectant and photovoltaic welding tape technology, applied in the field of metal coating protection, can solve the problems of flux residue, accelerated film corrosion, coating oxidation corrosion, etc., to prevent oxidative discoloration, improve shelf life, strong corrosion resistance and peel strength Effect

Inactive Publication Date: 2018-03-23
XIAN TELISON NEW MATERIAL
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used passivation film protectors can form a dense and highly adhesive protective film on the surface of the coating, but the film layer of this type of protective film is relatively thin, and when the amount of chromium used is not enough, it will accelerate the corrosion of the film layer, and the interconnection Flux is required in the manufacturing process of the confluence str

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] A surface protective agent for photovoltaic ribbons, comprising the following raw materials: phytic acid 3%, trisodium phosphate 1%, oleic acid 0.5%, 2-mercaptobenzoxazole 1.6%, thiourea 2%, benzotriazole Nitroxazole 1%, dodecyl primary amine 0.5%, acrylamide 0.5%, phenethylphenol polyoxyethylene ether 0.05%, and the balance is deionized water.

[0025] The preparation method of the above-mentioned surface protective agent for photovoltaic ribbons includes the following steps:

[0026] Step 1. Combine phytic acid, trisodium phosphate, oleic acid, 2-mercaptobenzoxazole, thiourea, benzotriazole, primary dodecylamine, acrylamide, phenethylphenol polyoxyethylene Ether was dissolved in absolute ethanol, and deionized water was added and stirred at 25°C for 3 minutes to obtain a raw material stirring solution, in which absolute ethanol accounted for 10% of the raw material stirring solution;

[0027] Step 2: Use ultrasonic waves with a frequency of 55KHz to disper...

Example Embodiment

[0028] Example 2

[0029] A surface protective agent for photovoltaic ribbons, comprising the following raw materials: hydroxyethylene diphosphate 4%, malic acid 1%, tartaric acid 0.5%, thiourea 3.5%, benzotriazole 0.5%, N,N-di Methylamide 1.5%, phenethylphenol polyoxyethylene ether 0.02%, the balance is deionized water.

[0030] The preparation method of the above-mentioned surface protective agent for photovoltaic ribbons includes the following steps:

[0031] Step 1. Add hydroxyethylene diphosphoric acid, malic acid, tartaric acid, thiourea, benzotriazole, N,N-dimethylamide, and phenethylphenol polyoxyethylene ether to absolute ethanol to dissolve it. Stir deionized water at 35°C for 2.5 min to obtain a raw material stirring liquid, in which anhydrous ethanol accounts for 10% of the raw material stirring liquid;

[0032] Step 2: Use ultrasonic waves with a frequency of 50 KHz to disperse the raw material stirring liquid for 2 minutes to obtain a surface protective agent for photov...

Example Embodiment

[0033] Example 3

[0034] A surface protective agent for photovoltaic ribbons, comprising the following raw materials: phytic acid 1%, trisodium phosphate 3%, hydroxyethylene diphosphate 2%, malic acid 1%, oleic acid 0.5%, thiourea 3.5% , Sodium diethylamino dithioformate 0.5%, benzotriazole 2%, N,N-dimethylamide 2%, OP-10 0.02%, phenethyl biphenol polyoxyethylene ether 0.05%, the remaining The amount is deionized water.

[0035] The preparation method of the above-mentioned surface protective agent for photovoltaic ribbons includes the following steps:

[0036] Step 1. Add phytate, trisodium phosphate, hydroxyethylene diphosphate, malic acid, oleic acid, thiourea, sodium diethylaminodithioformate, benzotriazole, N,N-dimethyl Alkyl amide, OP-10, and phenylethyl biphenol polyoxyethylene ether were dissolved in absolute ethanol, and deionized water was added and stirred at 45°C for 2 minutes to obtain a raw material stirring solution. Among them, absolute ethanol accounted for 10% of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a surface protective agent for a photovoltaic solder strip. The surface protective agent comprises the following raw materials including phosphate group compounds, carboxy group compounds, organic sulfur compounds, organic N type compounds, amide compounds, an emulgator and deionized water. The surface protective agent for the photovoltaic solder strip does not contain chromium, environment pollution is avoided in the using process, and the surface protective agent is economical and environment-friendly. According to the surface protective agent for the photovoltaic solder strip, a layer of protection film is formed on the surface of a clad layer under the non-passivation action, oxidization discoloration of the clad layer can be effectively prevented, and high corrosion resistance and peeling intensity are achieved. The shelf life of products is prolonged, and the product stability is improved. The preparing method is simple and easy to operate and implement.

Description

technical field [0001] The invention relates to the field of metal coating protection, in particular to a surface protectant for photovoltaic welding strips and a preparation method thereof. Background technique [0002] Tin plating is widely used in electronics, photovoltaics, surface treatment, etc. due to its excellent performance. Due to the current vigorous development of clean energy, photovoltaic energy, as an important clean energy, has also developed rapidly in recent years. In the manufacturing process of photovoltaic panels, busbars and interconnection strips are used to weld and interconnect the cells. Interconnection strips and busbars It is a kind of welding material with tin-plated surface. The welding material with tin alloy coating on the surface will produce oxidative discoloration and blackening due to the inclusion of various impurities, which will cause corrosion to the tin alloy coating. [0003] The commonly used coating protectant contains chromium, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C23F11/10C23F11/18
CPCC23F11/10C23F11/188
Inventor 李少萌张辉杨群陈庆谊年有权
Owner XIAN TELISON NEW MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap