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An environmentally friendly cleaning agent for LBO and YVO4 crystals

A wiping agent, environmental protection technology, applied in the directions of detergent compounding agent, detergent composition, chemical instrument and method, etc., can solve the problems of easy explosion when heating, weak degumming ability, hidden safety hazard, etc., and achieves harm to human body and environment. Small, simple production process, obvious cleaning effect

Inactive Publication Date: 2019-11-12
FUJIAN CASTECH CRYSTALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional cleaning method is to use gasoline and alcohol ether to clean the hot glue on the crystal, but because gasoline and alcohol ether need to be heated to have a good glue removal ability, the glue removal ability is very weak at room temperature, and ether will slow down in the air. Slowly oxidized to peroxide, peroxide is unstable, easy to explode when heated, so the general production line will not use heating solvent to wipe
This leads to hot glue residue on the surface of the crystal, which affects the use
In addition, the various crystal cleaning agents currently used in the industry have the following disadvantages: flammable and explosive, long-term inhalation will cause nerve paralysis, and its toxicity increases with the increase of aromatic hydrocarbons and sulfur content
Alcohol-ether mixtures commonly used in the industry are flammable and pose potential safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] 1) Put this cleaning agent (9% electronic fluoride solution, 20% acetone, 25% n-hexane, 25% cyclohexane and 16% ethanol) into the petri dish.

[0015] 2) Put the cooled crystals into the petri dishes already filled with cleaning agent and soak for 5 minutes.

[0016] 3) After taking out the crystal from the cleaning agent, hold the crystal with fingers (with finger cots), make its side lie flat on the lens-cleaning paper dripped with gasoline, wipe it gently several times, and then change the other side until all sides are clean Remove residual glue.

[0017] 4) On the silk cloth dripped with this wiper, the crystal and the silk cloth are at 45°, rotate and wipe; then use adhesive tape to remove the polishing powder remaining on the chamfer of the crystal. Hold the crystal with your fingers (with finger cots), and gently wipe the clear surface with a silk cloth dripped with this wiper.

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PUM

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Abstract

The invention discloses an environmentally friendly cleaning agent for LBO and YVO4 crystals, relating to the technical field of crystal cleaning, and more particularly relates to a cleaning solutionfor cleaning bonding hot glue and polishing residues of LBO (lithium triborate crystals, LiB3O5) and YVO4 (yttrium vanadate crystals, YVO4). According to the rule that like dissolves like, the cleaning agent is prepared by compounding a plurality of organic compounds having solubility, dispersibility and hydrophilicity, and the cleaning agent after compounding has a higher flash point and lower flammability, and is safer and more environmentally friendly. The components of the cleaning agent are: (a) an electron fluorination solution, (b) acetone, (c) n-hexane, (d) cyclohexane, (e) ethanol, and (f) fatty alcohol polyoxyethylene ether. The cleaning agent does not corrode crystal surfaces, and has a remarkable cleaning effect on the hot glue and the polishing residues at room temperature. The cleaning agent has a simple production process, and less harm to human bodies and environment, and is convenient for application in production.

Description

technical field [0001] The present invention relates to the technical field of crystal cleaning, more specifically, relates to the crystal cleaning technology used for LBO (lithium triborate crystal, LiB 3 o 5 ) and YVO 4 (yttrium vanadate crystal, YVO 4 ) crystal bonding hot glue and polishing residue cleaning solution. Background technique [0002] Lithium triborate crystal, LiB 3 o 5 , referred to as LBO) is an excellent high-power ultraviolet frequency doubling crystal, with a wide light transmission band (165nm-3200nm), high damage threshold (25GW / cm 2 ), high frequency conversion rate and other advantages. YVO 4 (yttrium vanadate crystal, YVO 4 ) crystal is an important material for diode (LD) pumped small lasers. It is widely used in the field of optical fiber communication and is a key material in optical communication passive devices such as optical isolators, circulators, optical rotators, retarders, and polarizers. The traditional cleaning method is to u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/72C11D3/60C11D3/20C11D3/18C11D3/44
CPCC11D1/72C11D3/181C11D3/185C11D3/2006C11D3/2072C11D3/43
Inventor 喻小林谢祖泽李雄王立爱张星陈秋华陈伟
Owner FUJIAN CASTECH CRYSTALS