CN101733688B - Aqueous precise polishing film and preparation method and use thereof - Google Patents
Aqueous precise polishing film and preparation method and use thereof Download PDFInfo
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Abstract
The invention relates to an aqueous precise polishing film, which comprises a base material and is characterized in that: the surface of the base material is provided with a coating which is uniformly coated by a sizing agent, the sizing agent is prepared by mixing and dispersing a micron class abrasive material, an aqueous adhesive and a solvent; and the coating can be gradually fallen off by a single layer when polished. The polishing film is suitable for polishing an MT connector, particularly suitable for grinding an optical fiber which is higher than a contact pin body, namely, the optical fiber height polishing; and other polishing liquid is unnecessary to use, with high polishing efficiency and convenient and rapid operation.
Description
Technical field
The present invention relates to a kind of aqueous precise polishing film and its production and use, this polished film is used for the grinding and polishing of the MT joints of optical fibre, there is selective polishing performance, to be applicable in MT connector optical fiber higher than the grinding and polishing of pin body, to meet the requirement of optical fiber height.
Background technology
The joints of optical fibre are most widely used passive devices in Fiber Optical Communication System.The development of the expansion of telex network scale, the high speed of optic communication and multimedia Large Copacity messaging device all promotes the multiple-core development of connector, and multi-fiber connector connects, i.e. the MT joints of optical fibre.Just therefore, the MT joints of optical fibre arisen at the historic moment commercially have the customer group constantly expanded, and each major company of the current world all also actively puts goods on the market at accelerate development MT series connector.Such as, Japanese Teng Cang company have employed mini-MT connector ferrule, develops the less MT-RJ type two core fibre connector meeting again Japanese family electric connector RJ-45 standard-required completely of volume; US-Conec company of the U.S., based on MT element, have developed and can connect 4,8,10, the MTP/MPO type joints of optical fibre of 12 core fibres; The small-sized MT joints of optical fibre of Siecor company of the U.S., i.e. small-sized MAC type connector, its most multipotency is used for 4 core fibres; Japan newly change into day 4,8, the MPO type joints of optical fibre of 12 core fibres.Estimate after the several years, multi-fiber connector by with the diameter used in a large number at present for the connector of 2.5mm contact pin is run neck and neck.
The lock pin of the MT joints of optical fibre all adopts polymeric material to make, as epoxy resin (ER), polyphenylene sulfide (PPS).There are low insertion loss and high return loss for making MT connector thus ensure the Transfer Quality of communication signal, not only grinding and polishing will be carried out in the end of the joints of optical fibre, to avoid multiple reflection and the scattering excessively that cause optical signal due to the rough and uneven in surface of end, and the end face of its fibre core also answers grinding and polishing to exceed pin body, namely optical fiber wants protruding.General MT connector requires that the end face of fibre core is higher than pin body 1000-3000nm, and namely optical fiber height is 1000-3000nm, and therefore the grinding and polishing difficulty of MT connector is higher than ordinary connector.For reaching the requirement of optical fiber height, general Ginding process is that grinding pad coordinates lapping liquid, or adopts the Villus cloth be coated with abrasive material, as Japanese MIPOX damping cloth and carborundum, alumina lap liquid, and the products such as 498X, 298X of Minnesota Mining and Manufacturing Company.US 2006/0072879A1 describes the method using lapping liquid and the Villus cloth grinding and polishing MT joints of optical fibre, and after the method polishing MT joints of optical fibre, average optical fiber height is at about 1000nm, and optical fiber height difference is less than 250nm.In general, grinding pad coordinates lapping liquid grinding efficiency high, but after lapping liquid grinding, MT connector will clean, and adds operational sequence, makes troubles; And though the Villus cloth grinding be coated with abrasive material is simple to operation, without the need to cleaning, grinding efficiency is lower.
Summary of the invention
The object of the invention is the shortcoming overcoming prior art, propose a kind of optical fiber height requirement that can meet the MT joints of optical fibre, and the aqueous precise polishing film that grinding efficiency is high, simple to operation.The present invention also provides preparation method and the purposes of this polished film.
Technical conceive of the present invention is: by the structure matching of adhesive and the selection of abrasive material, specific abrasive material is fully mixed with aqueous adhesive and solvent, be uniformly dispersed, then being coated substrate surface, being formed polished film after drying solidification, when grinding MT connector, add a small amount of water, process of lapping floating coat progressively individual layer comes off, and has selective polishing performance, thus reaches the requirement of fiber protrusion.
Technical scheme of the present invention is:
A kind of aqueous precise polishing film, for the grinding and polishing of the MT joints of optical fibre, comprise base material, it is characterized in that, described substrate surface has the coating being mixed the slurry even spread disperseing to make by micron order abrasive material with aqueous adhesive and solvent; Described aqueous adhesive is that powdery, granular or block resin are water-soluble, and solid content is the adhesive of 10-90%; Described resin comprises the mixture of modified starch and polyester; Described modified starch is esterification starch.
Described resin also comprises one or more mixtures in polyvinyl alcohol, carboxymethyl cellulose, polyacrylamide, polyurethane, polyacrylic, polyethylene glycol.
Described micron order abrasive material is mainly carborundum, aluminium oxide and/or cerium oxide, and particle diameter is 0.1 ~ 5 micron.
Described base material is selected from following material: various plastic sheeting, or cloth or paper; Described plastic sheeting is polyester film, polyurethane film, polycarbonate film, polyamide film, polypropylene film, polyethylene film or polyvinyl chloride film; Base material thickness is 25 ~ 200 microns.
Described base material is preferably biaxially oriented polyester film or polyamide film.
Described coating layer thickness is 1 ~ 30 micron.
For the preparation method of the aqueous precise polishing film of MT joints of optical fibre grinding and polishing, it is characterized in that comprising the following steps:
(1) powdery, granular or block resin is soluble in water, make the aqueous adhesive that solid content is 10-90%; Described resin comprises the mixture of modified starch and polyester; Described modified starch is esterification starch;
(2) aqueous adhesive that abrasive material and step (1) obtain is mixed with certain proportion, and add solvent, use ball mill, sand mill or ultrasonic dispersing machine to be fully uniformly dispersed, and then add curing agent, obtained slurry;
(3) slurry roll coater obtained for step (2) or flush coater are coated substrate surface equably, obtained aqueous precise polishing film after drying solidification.
In described step (1), described resin also comprises one or more mixtures in polyvinyl alcohol, carboxymethyl cellulose, polyacrylamide, polyurethane, polyacrylic, polyethylene glycol.
In described step (2), the mixed proportion of abrasive material and aqueous adhesive is 1:9 ~ 9:1; The solvent added is one or more mixtures of water, ethanol, isopropyl alcohol, propane diols ethers; The curing agent added is amino or isocyanates curing agent; One or more additives following are also added: coupling agent, antistatic additive, wetting agent, dispersant, defoamer in described slurry.
In described step (3), by control roll speed, linear speed, roller gap condition during coating, control coating layer thickness; Described dry solidification refers to: product, after the dry road drying of coating machine, is placed 5 ~ 60 hours at 40 ~ 150 DEG C; Regulate suitable temperature and time, curing reaction is carried out completely.
The purposes of aqueous precise polishing film, is characterized in that, this polished film is used for the grinding of MT connector, add water during grinding, coating progressively individual layer comes off, and carries out selective polishing to abradant surface, be suitable for optical fiber in MT connector higher than the grinding and polishing of pin body, i.e. optical fiber height grinding.
Technique effect of the present invention:
The present invention adopts aqueous adhesive to mix by a certain percentage with specific abrasive material, and adds solvent, make slurry and coat substrate surface formation coating, then drying obtains aqueous precise polishing film, for the grinding and polishing of the MT joints of optical fibre with solidification post processing.This polished film is due to the effect of aqueous adhesive, a small amount of water is added during grinding, can progressively come off by individual layer at process of lapping floating coat, to abradant surface carry out be roll grinding, there is selective polishing performance, thus to be suitable for optical fiber in MT connector higher than the grinding of pin body, meet the requirement of optical fiber height; And during traditional polished film grinding, coating does not come off, and does not have selective polishing performance, needs with the use of lapping liquid.Therefore, polished film of the present invention is applicable to the grinding of MT connector, is particularly applicable to the grinding of optical fiber higher than pin body, i.e. optical fiber height grinding, and need not re-use other lapping liquid, and grinding efficiency is high, simple operation.
Detailed description of the invention
A kind of aqueous precise polishing film, for the grinding and polishing of the MT joints of optical fibre, comprise base material, substrate surface has the coating being mixed the slurry even spread disperseing to make by micron order abrasive material with aqueous adhesive and solvent, and described coating can progressively come off by individual layer when grinding.
This polished film is prepared by following method: fully mixed with aqueous adhesive, solvent by micron order abrasive material, be uniformly dispersed, and then it is coated equably on base material and forms coating, and drying and solidification post processing obtain.
The preparation method of aqueous precise polishing film comprises the following steps:
(1) powdery, granular or block resin is soluble in water, make the aqueous adhesive that solid content is 10-90%;
(2) aqueous adhesive that abrasive material and step (1) obtain is mixed with certain proportion, and add solvent, use ball mill, sand mill or ultrasonic dispersing machine to be fully uniformly dispersed, and then add curing agent, obtained slurry.
(3) slurry roll coater obtained for step (2) or flush coater are coated substrate surface equably, after drying solidification, obtain aqueous precise polishing film.
Wherein, aqueous adhesive is that powdery, granular or block resin are water-soluble, and solid content is the aqueous adhesive of 10-90%; Described resin comprises the mixture of modified starch and polyester; One or more mixtures in polyvinyl alcohol, carboxymethyl cellulose, polyacrylamide, polyurethane, polyacrylic, polyethylene glycol can also be comprised;
Abrasive material is mainly carborundum, aluminium oxide, cerium oxide, and particle diameter is 0.1 ~ 5 micron;
The mixed proportion of abrasive material and aqueous adhesive is 1:9 ~ 9:1;
Solvent is one or more mixtures of water, ethanol, isopropyl alcohol, propane diols ethers.
Described base material has higher hot strength and solvent resistance, heat resistance, comprises various plastic sheeting, as polyester, polyurethane, Merlon, polyamide, polypropylene, polyethylene, polyvinyl chloride, and Yi Jibu, paper, thickness is at 25-200 micron; From mechanical strength and coating homogeneity, biaxially oriented polyester film or polyamide film are the most suitable.In addition, as required, carry out surface treatment to film, comprise sided corona treatment, surface grafting polymerization thing or precoated shet process etc., precoated shet thickness 1 ~ 5 micron is the most suitable.
Also need in described slurry to add additive: coupling agent, antistatic additive, wetting agent, dispersant, defoamer, add suitable amount as required.
Method of the present invention dispersing apparatus used comprises ball mill, sand mill or ultrasonic dispersing machine, should control jitter time, make abrasive material dispersed, do not produce reunion.
Method of the present invention, regulates coating layer thickness at 1-30um by conditions such as control roll speed, linear speed, roller gaps during coating.
Described solidification refers to: product, after the dry road drying of coating machine, is placed 5 ~ 60 hours, regulated suitable temperature and time to carry out completely to make curing reaction at 40 ~ 150 DEG C.
According to requirements, polished film can be cut into the shape such as square piece, disk, winding of various sizes.
Provided by the present invention is a kind of polished film for MT connector, and add a small amount of water during grinding, directly can bring fiber protrusion, meet the requirement of optical fiber height, grinding efficiency is high, simple operation.
Embodiment 1
Get the silicon carbide micro-powder that 4500g median particle diameter is 3 microns, 2000g solid content is the polyester adhesive of 30%, and 4500g solid content is the esterification starch of 20%, 2400g water, 900g isopropyl alcohol, 450g propylene glycol monomethyl ether, 10g defoamer, above-mentioned mixed liquor is proceeded in ball mill dispersion tank, utilize ball mill that it is fully disperseed 48 hours, then add 688g amino resin curing agents (Qing Te company), 200g water-based cyanate curing agent, 150g substrate wetting agents, stir formation painting slurry.Roll coater is utilized to be coated on by above-mentioned painting slurry on the polyester film base material that thickness is 75um uniformly, after 120 DEG C of heated-air dryings, solidify 48 hours at 110 DEG C, finally forming the thick coating of 20um by controlling coating thickness, namely making polished film of the present invention.
Embodiment 2
Get the silicon carbide micro-powder that 4000g median particle diameter is 3 microns, 2250g solid content is the polyester adhesive of 30%, 2700g solid content is the esterification starch of 25%, 1500g solid content is the polyacrylamide of 10%, 2700g water, 900g isopropyl alcohol, 400g propylene glycol monomethyl ether, 10g defoamer, above-mentioned mixed liquor is proceeded in ball mill dispersion tank, utilizes ball mill that it is fully disperseed 48 hours, then add 930g amino resin curing agents (Qing Te company), 140g substrate wetting agents, stir formation painting slurry.Roll coater is utilized to be coated on by above-mentioned painting slurry on the polyester film base material that thickness is 75um uniformly, after 120 DEG C of heated-air dryings, solidify 48 hours at 110 DEG C, finally forming the thick coating of 20um by controlling coating thickness, namely making polished film of the present invention.
Embodiment 3
Get the silicon carbide micro-powder that 4800g median particle diameter is 3 microns, 2000g solid content is the polyester adhesive of 30%, and 4500g solid content is the esterification starch of 20%, 2400g water, 900g isopropyl alcohol, 450g propylene glycol monomethyl ether, 10g defoamer, proceeds to above-mentioned mixed liquor in ball mill dispersion tank, utilize ball mill that it is fully disperseed 48 hours, then add 930g amino resin curing agents (Qing Te company), 150g substrate wetting agents, stir formation painting slurry.Roll coater is utilized above-mentioned painting slurry to be coated on uniformly the woven dacron primary surface of polyester film compound, after 120 DEG C of heated-air dryings, solidify 36 hours at 110 DEG C, finally forming the thick coating of 30um by controlling coating thickness, namely making polished film of the present invention.
Embodiment 4
The present embodiment is application examples.
Polished film obtained in above-described embodiment 1 is cut into the disk that diameter is 127mm, utilizes the grinder of DOMAIL, under the condition shown in subordinate list 1, carry out 12 core multimode MPO wire jumper (PC) grinding and polishing experiments.It is 2699nm/2472nm that experiment terminates measuring fiber height Max/Min, and maximum fiber core amount of recess (Core Dip) 98nm, meets the requirement of MPO wire jumper telecommunications metrics.
Subordinate list 1
Embodiment 5
The present embodiment is application examples.
Polished film obtained in above-described embodiment 2 and embodiment 3 is cut into the disk that diameter is 127mm, utilizes the grinder of DOMAIL, carries out 12 core multimode MPO wire jumper (PC) grinding and polishings experiments under the condition shown in subordinate list 2.It is 2007nm/1868nm that experiment terminates measuring fiber height Max/Min, and maximum fiber core amount of recess (Core Dip) 79nm, meets the requirement of MPO wire jumper telecommunications metrics.
Subordinate list 2
Note: above SC15, SC5, PUMT-3, AO-1-60, CO-1-30 etc. are Beijing Guorui Science and Technology Co., Ltd.'s product.
It should be pointed out that the above detailed description of the invention can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore, although this description and embodiment have been described in detail to the invention, it will be appreciated by those skilled in the art that and still can modify to the invention or equivalent replacement; And all do not depart from technical scheme and the improvement thereof of spirit and scope of the present utility model, it is all encompassed in the middle of the protection domain of the invention patent.
Claims (10)
1. an aqueous precise polishing film, comprise base material, described substrate surface has the coating being mixed the slurry even spread disperseing to make by micron order abrasive material with aqueous adhesive and solvent, and described aqueous adhesive is that powdery, granular or block resin are water-soluble, and solid content is the adhesive of 10-90%; It is characterized in that, for the grinding and polishing of the MT joints of optical fibre, described resin comprises the mixture of modified starch and polyester; Described modified starch is esterification starch.
2. aqueous precise polishing film according to claim 1, is characterized in that, described resin also comprises one or more mixtures in polyvinyl alcohol, carboxymethyl cellulose, polyacrylamide, polyurethane, polyacrylic, polyethylene glycol.
3. aqueous precise polishing film according to claim 1 and 2, is characterized in that, described micron order abrasive material is mainly carborundum, aluminium oxide, cerium oxide, and particle diameter is 0.1 ~ 5 micron.
4. aqueous precise polishing film according to claim 1 and 2, is characterized in that, described base material is selected from following material: various plastic sheeting or cloth or paper; Described plastic sheeting is polyester film, polyurethane film, polycarbonate film, polyamide film, polypropylene film, polyethylene film or polyvinyl chloride film, and base material thickness is at 25-200 micron.
5. aqueous precise polishing film according to claim 4, is characterized in that, described base material is biaxially oriented polyester film or polyamide film.
6. aqueous precise polishing film according to claim 1 and 2, is characterized in that, described coating layer thickness is 1-30 micron.
7., for the preparation method of the aqueous precise polishing film as described in one of claim 1-6, it is characterized in that comprising the following steps:
(1) powdery, granular or block resin is soluble in water, make the aqueous adhesive that solid content is 10-90%;
(2) aqueous adhesive that abrasive material and step (1) obtain is mixed with certain proportion, and add solvent, use ball mill, sand mill or ultrasonic dispersing machine and control jitter time, abrasive material is fully uniformly dispersed, do not produce reunion, and then add curing agent, obtained slurry;
(3) slurry roll coater obtained for step (2) or flush coater are coated substrate surface equably, after drying solidification, obtain aqueous precise polishing film.
8. the preparation method of aqueous precise polishing film according to claim 7, it is characterized in that, in described step (1), described resin also comprises one or more mixtures in polyvinyl alcohol, carboxymethyl cellulose, polyacrylamide, polyurethane, polyacrylic, polyethylene glycol.
9. the preparation method of the aqueous precise polishing film according to claim 7 or 8, is characterized in that, in described step (2), the mixed proportion of abrasive material and aqueous adhesive is 1:9 ~ 9:1; The solvent added is one or more mixtures of water, ethanol, isopropyl alcohol, propane diols ethers; The curing agent added is amino or isocyanates curing agent; Also add additive in described slurry: coupling agent, antistatic additive, wetting agent, dispersant, defoamer, add suitable amount as required.
10. the preparation method of aqueous precise polishing film according to claim 9, is characterized in that, in described step (3), by control roll speed, linear speed, roller gap condition during coating, controls coating layer thickness; Described dry solidification refers to: product, after the dry road drying of coating machine, is placed 5 ~ 60 hours at 40 ~ 150 DEG C; Regulate suitable temperature and time, curing reaction is carried out completely.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103608424B (en) * | 2011-06-30 | 2015-11-25 | 圣戈班磨料磨具有限公司 | The abrasive agglomerates applied and the product comprising it |
| CN102825561B (en) * | 2012-09-07 | 2015-10-28 | 北京国瑞升科技股份有限公司 | Water-based polished film and preparation method thereof |
| CN104511850A (en) * | 2013-11-19 | 2015-04-15 | 东莞金太阳研磨股份有限公司 | Preparation method for thin-film abrasive paper special for optical communication |
| CN104002252B (en) * | 2014-05-21 | 2016-06-01 | 华侨大学 | Ultra-fine abrasive material biopolymer flexible polishing film and its preparation method |
| CN105437094A (en) * | 2015-11-14 | 2016-03-30 | 东莞金太阳研磨股份有限公司 | Yarn production process and device |
| CN109571237B (en) * | 2018-12-21 | 2020-10-16 | 北京保利世达科技有限公司 | Diamond polishing film and preparation method and application thereof |
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