Granulation polishing film, preparing method thereof and application thereof

A polishing film and granulation technology, which is applied in the field of grinding and polishing, can solve the problems of short service life and poor wear resistance, and achieve the effects of increasing service life, improving wear resistance and reducing processing costs

Active Publication Date: 2010-07-07
BEIJING GRISH HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, and propose a granulated polishing film for fine grinding of optical fiber connectors. Good, at the same time, it overcomes the defects of poor wear resistance and short service life of the traditional polishing film, and effectively reduces the processing cost of optical fiber connectors

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  • Granulation polishing film, preparing method thereof and application thereof
  • Granulation polishing film, preparing method thereof and application thereof
  • Granulation polishing film, preparing method thereof and application thereof

Examples

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preparation example Construction

[0028] The preparation method of granulated polishing film comprises the following steps:

[0029] Step 1, prepare granulation slurry: disperse the abrasive powder in one or several metal oxide sols, add inorganic binder or organic binder, add additives, and disperse by ball milling or sand milling and other dispersion methods Uniform;

[0030] The abrasive powder in the granulation slurry includes: superabrasives such as diamond, silicon carbide, aluminum oxide, zirconia, modified cerium aluminum oxide, cubic boron nitride or silicon dioxide with an average particle size of ≤3 μm; The average particle size of the abrasive powder used for fine grinding is ≤1 μm, and the average particle size of the abrasive powder used for medium grinding is ≤3 μm.

[0031] The metal oxide sol in the granulation slurry is one or more of alumina sol, silica sol, magnesium oxide sol, titanium oxide sol or zirconia sol with a concentration of 10% to 60%, and the rest are inorganic Binder or org...

Embodiment 1

[0040] Get 1Kg of diamond powder with an average particle size of 1 μm, add 11Kg of 40% silica sol (self-made or commercially available), 100g of dispersant, a little defoamer, and disperse the above mixed solution using a ball mill; The granulation test was carried out on the dispersed slurry on the spray dryer. The inlet temperature was 240°C, the outlet temperature was 110°C, and the atomizer speed was 35000r.p.m. Spherical composite abrasive particles with an average particle size of 18μm were obtained; Abrasive particles 1.5Kg, add polyester glue, epoxy resin glue, epoxy resin toughener and acetone, toluene, methyl ethyl ketone, ethyl acetate mixed solution, disperse the above mixed solution for 120min through a high-speed mixer, and use a roller coating method The coating machine is applied on the 75μm polyester film coated with a 5μm primer, and the thickness of the abrasive layer is 40μm. After drying, the granulated polishing film for the fine grinding of the optical f...

Embodiment 2

[0042] Get 1.5Kg average particle diameter at the diamond micropowder of 2 μm, add 5Kg concentration and be 20% silica sol (self-made or commercially available), a little defoamer and dispersant, utilize ball mill to disperse above-mentioned mixed solution; The granulation test was carried out on the dispersed slurry on the spray dryer, the inlet temperature was 230°C, the outlet temperature was 110°C, the atomizer speed was 33000r.p.m, and spherical composite abrasive particles with an average particle size of 20μm were obtained; Abrasive particles 2Kg, add polyester glue, epoxy resin glue, epoxy resin toughener, curing agent and a mixture of toluene, butanone, xylene, acetone, add a little leveling agent, and mix the above mixture with a high-speed mixer Disperse for 120 minutes, and use a roller coater to coat on a 75 μm polyester film coated with a 4 μm primer, with an abrasive layer thickness of 45 μm. After drying, a granulated polishing film for grinding in optical fiber...

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Abstract

The present invention provides a for the precise finish of an optical fiber connector with lasting abrasive power and high life time, a preparing method thereof and an application thereof, and can strengthen self-shaping. The granulation polishing film comprises base material and an abrasive layer coated at the surface of the base material, wherein the abrasive layer comprises resinoid bond and composite abrasive grains in global coacervate; the composite abrasive grains are global coacervates prepared by granulating abrasive powder distributed in the mixing liquid of metal oxide sol and organic or inorganic binder; the resinoid bond comprises epoxide resin and epoxide resin toughener, and also comprises one or several kinds of polyester, polyurethane, daiamid, acrylate and polyurea. The granulation polishing film is used for the grinding finish of the optical fiber connector and optical fiber arrays. The life time is one to two times longer than that of the traditional polishing film for the finish of the optical fiber connector, and the processing cost of the optical fiber connector is reduced.

Description

technical field [0001] The invention relates to the technical field of grinding and polishing, in particular to a granulated polishing film suitable for fine grinding of optical fiber connectors and a preparation method thereof. Background technique [0002] Optical fiber connectors are key connecting devices in the optical fiber communication industry. With the popularization and development of optical fiber access (such as FTTB, FTTC, FTTH, etc.) technology and 3G networks, the amount of optical fiber connectors has also increased greatly, and the production and processing industry of optical fiber connectors has developed. fast. In practical applications, in order to ensure the transmission quality of optical signals, the end of the optical fiber connector must be ground and polished. The polishing film used for precision grinding and polishing of traditional optical fiber connectors is mainly made of diamond, silicon carbide, aluminum oxide, etc. Abrasives and resin adh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/02B24D3/28B24D11/00B24B19/00
Inventor 李琴齐朝晖冉瑞红许亚杰
Owner BEIJING GRISH HITECH
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