CN102409328A - Surface modification method of alloy fiber - Google Patents
Surface modification method of alloy fiber Download PDFInfo
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- CN102409328A CN102409328A CN2011103417978A CN201110341797A CN102409328A CN 102409328 A CN102409328 A CN 102409328A CN 2011103417978 A CN2011103417978 A CN 2011103417978A CN 201110341797 A CN201110341797 A CN 201110341797A CN 102409328 A CN102409328 A CN 102409328A
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Abstract
The invention provides a surface modification processing method of an alloy fiber, which comprises the following steps of: (1) putting an alloy fiber to be processed in degreasing fluid to be degreased; (2) immersing the alloy fiber which is subjected to the degreasing in the step (1) into chemical oxidant solution until the fiber is blue or black, wherein the temperature of the chemical oxidant solution is 50-90 DEG C; (3) immersing the alloy fiber which is oxidized in the step (2) into hardening fluid for 1-10min, wherein the temperature of the hardening fluid is 50-80 DEG C; (4) immersing the alloy fiber which is subjected to the hardening in the step (3) into confining fluid for 1-10min, wherein the temperature of the confining fluid is 60-100 DEG C; and (5) cleaning the alloy fiber which is subjected to the confining in the step (4) by clean water, and drying. According to the surface modification processing method disclosed by the invention, the corrosion resistance of the alloy fiber can be improved, simultaneously, the surface tensile and the polar component of the alloy fiber are improved, and further, the surface hydrophily of the alloy fiber can be improved.
Description
Technical field
The invention relates to a kind of surface modifying method of alloy fiber silk, carry out the method for alloy fiber silk surface-treated more precisely about a kind of means with chemistry.
Background technology
The alloy fiber silk is the infant industry material, because of it has intensity height, characteristic such as high temperature resistant, corrosion-resistant, is widely used in the liquid film mass transfer field that is separated and develops rapidly in recent years of industries such as petrochemical complex, papermaking, environmental protection.Adopt effective surface modifying method further improve the alloy fiber silk solidity to corrosion, improve its surface hydrophilicity, help prolonging its work-ing life, improve effectively that the profit biphase separates and mass-transfer efficiency.
U.S. Pat 5196272 utilizes the coated material that laser beam will contain compositions such as certain proportion Cr, Ni, Mo to melt in stainless steel surface, has formed the coating that contains a large amount of Cr elements at stainless steel surface, thereby has improved Corrosion Resistance of Stainless Steels greatly.
U.S. Pat 6977016B2 provides a kind of can effectively improve stainless steel, the particularly surface modifying method of FeCrAl alloy.This method uses one deck to contain the continuous coated of Ca at alloy surface before alloy thermal treatment, makes it in heat treatment process, to form the mixed oxide of Al and Ca, thereby improves alloy solidity to corrosion at high temperature.
Above-mentioned two kinds of methods are all not mentioned on the one hand handle before and after the variation of alloy material surface hydrophilicity, can not be used for the surface modification treatment of a large amount of alloy fiber silks on the other hand.
East China University of Science's journal (natural science edition), 31 (4), reported the method that improves the medical stainless steel surface hydrophilicity with low frequency RF-plasma body among the 460-465 (2005).Jilin University's journal; 36 (5); Reported among the 719-722 (2006) that application laser retrofit technology forms non-smooth units body dot matrix at stainless steel surface, increasing the real contact area of liquid and metallic surface, thereby improved the surface modification process for stainless steel of its surface hydrophilicity.But these two kinds of method operation easier are bigger, and are not suitable for the surface treatment that the alloy fiber silk is gone up in industry equally.
The corrosion resisting property to improve material that existing alloy surface modifying method has is a purpose, and what have is purpose with the surface hydrophilicity that improves alloy material then.Do not see so far can improve simultaneously alloy corrosion resistance can and surface hydrophilicity and can be used for the method for a large amount of alloy fiber silk surface-treateds.
Summary of the invention
The purpose of this invention is to provide a kind of surface modifying method that can improve alloy fiber silk corrosion resisting property and surface hydrophilicity simultaneously.
Above-mentioned purpose of the present invention realizes through following technical scheme:
A kind of surface modifying method of alloy fiber silk is provided, carries out according to the following step:
(1) pending alloy fiber silk is put into degreasing fluid degreasing 1～10min; Described degreasing fluid is the aqueous solution that contains following components in weight percentage: sodium hydroxide 1%～10%, yellow soda ash 0.5%～5%, X 2073 0.5%～5% and OP-10 0.1%～1%;
(2) the alloy fiber silk after step (1) degreasing is clean with flushing with clean water, then it being immersed temperature is that the controlled oxidation time is 5～20min in 50～90 ℃ the chemical oxidation liquid; Described chemical oxidation liquid is the aqueous solution that contains 10%～40% sulfuric acid and 5%～20% chromium trioxide by weight percentage; Form under certain condition at chemical oxidation liquid; Prolongation along with oxidization time; The alloy fiber silk demonstrates brown, blueness, black, golden yellow, red-purple and green successively after the oxidation, and when fiber yarn was blueness or black after wherein handling, its corrosion resisting property and surface hydrophilicity were good;
(3) the alloy fiber silk after step (2) oxidation is clean with flushing with clean water, then it being immersed temperature is in 50～80 ℃ the hardening bath, immersion treatment 1～10min; Described hardening bath is the aqueous solution that contains 0.5%～5% SRM 935a and 0.1%～1% sodium hydroxide by weight percentage;
(4) the alloy fiber silk after step (3) post bake is handled is clean with flushing with clean water, then it is immersed in 60～100 ℃ the confining liquid immersion treatment 1～10min; Described confining liquid is that weight percent concentration is 0.05%～5% sodium silicate aqueous solution.
(5) with the clean and oven dry of the alloy fiber silk behind step (4) sealing treatment with flushing with clean water.
The described degreasing fluid of step (1) preferably contains following components in weight percentage: sodium hydroxide 5%～10%, yellow soda ash 3%～5%, X 2073 3%～5% and OP-10 0.1%～1%.
The described chemical oxidation liquid of step (2) preferably contains 20%～35% sulfuric acid and 10%～20% chromium trioxide.
The described hardening bath of step (3) preferably contains 3%～5% SRM 935a and 0.1%～1% sodium hydroxide.
The described confining liquid preferred weight percent of step (4) concentration is 0.1%～1% sodium silicate aqueous solution.
Preferred 3～the 5min of the described degreasing time of step (1).
Preferred 60～80 ℃ of the described chemical oxidation liquid temp of step (2); Preferred 5～the 10min of oxidization time.
Preferred 50～70 ℃ of the described hardening bath temperature of step (3); Preferred 3～the 5min of soak time.
Preferred 80～100 ℃ of the described confining liquid temperature of step (4); Preferred 3～the 5min of soak time.
Method provided by the present invention can improve alloy fiber silk corrosion resisting property and surface hydrophilicity simultaneously.Described alloy fiber silk contains one or more among element Cr, Ni, Ti, the Mo, like 0Cr18Ni9,1Cr8Ni9Ti, 1Cr18Ni12Mo2Ti etc.
The mechanism that method provided by the invention can improve alloy fiber silk corrosion resisting property is: this surface modifying method can reduce the surface imperfection of alloy fiber silk, improves the content and the superficial film thickness of its surface C r, O element.
The mechanism that method provided by the invention can improve alloy fiber silk surface hydrophilicity is: this surface modifying method can improve alloy fiber silk surface C r
2O
3And Cr (OH)
3Deng the content that contains the oxygen polar group, increase the surface tension and the polar component thereof of alloy fiber silk.
Description of drawings
Fig. 1 is the schema of alloy fiber silk surface modifying treatment provided by the invention.
Embodiment
Through embodiment the present invention is done further explanation below, but protection scope of the present invention does not receive the restriction of these embodiment.
In the following example, used reagent is the analytical pure level; The erosion rate of alloy fiber silk is measured with reference to ASTM G48-11 before and after the surface modification treatment; The capillary mensuration of alloy fiber silk is with Young's equation γ before and after the surface modification treatment
Gs=γ
Ls+ γ
GlCos θ is a theoretical basis.
Embodiment 1.
Adopt method provided by the invention to carry out the surface modification treatment of alloy fiber silk.
1, the preparation of alloy fiber silk degreasing fluid, chemical oxidation liquid, hardening bath and confining liquid:
(1) by weight percentage, preparation 1000mL contains the aqueous solution of 10% sodium hydroxide, 5% yellow soda ash, 5% X 2073,0.5%OP-10, as degreasing fluid.
(2) by weight percentage, preparation 1000mL contains the aqueous solution of 25% sulfuric acid and 20% chromium trioxide, as chemical oxidation liquid.
(3) by weight percentage, preparation 1000mL contains the aqueous solution of 1.5% SRM 935a and 0.3% sodium hydroxide, as hardening bath.
(4) by weight percentage, preparation 1000mL weight percentage is 1% sodium silicate aqueous solution, as confining liquid.
2, the surface modification treatment of 1Cr18Ni9Ti alloy fiber silk:
(1) be that a branch of 1Cr18Ni9Ti alloy fiber silk of 0.6mm is put into above-mentioned 1000mL degreasing fluid degreasing 5min with 300g fiber yarn diameter.
(2) the alloy fiber silk after the above-mentioned degreasing is clean with flushing with clean water, and it is immersed the 1000mL temperature is that oxidization time is 10min, to the oxidation of alloy fiber yarn theory of evolution in 70 ℃ the chemical oxidation liquid.The color of handling back alloy fiber silk is a black.
(3) the alloy fiber silk after the above-mentioned oxidation is clean with flushing with clean water, and it is immersed the 1000mL temperature is in 60 ℃ the hardening bath, immersion treatment 5min.
(4) the alloy fiber silk after above-mentioned post bake is handled is clean with flushing with clean water, and it is immersed the 1000mL temperature is in 100 ℃ the confining liquid, immersion treatment 5min.
(5) with the clean and oven dry of the alloy fiber silk behind the above-mentioned sealing treatment with flushing with clean water.
Embodiment 2.
Adopt method provided by the invention to carry out the surface modification treatment of alloy fiber silk.
1, the preparation of alloy fiber silk degreasing fluid, chemical oxidation liquid, hardening bath and confining liquid:
(1) by weight percentage, preparation 1000mL contains the aqueous solution of 1% sodium hydroxide, 0.5% yellow soda ash, 0.5% X 2073,1%OP-10, as degreasing fluid.
(2) by weight percentage, preparation 1000mL contains the aqueous solution of 30% sulfuric acid and 15% chromium trioxide, as chemical oxidation liquid.
(3) by weight percentage, preparation 1000mL contains the aqueous solution of 0.5% SRM 935a and 0.1% sodium hydroxide, as hardening bath.
(4) by weight percentage, preparation 1000mL weight percentage is 0.1% sodium silicate aqueous solution, as confining liquid.
2, the surface modification treatment of 0Cr18Ni9 alloy fiber silk:
(1) be that a branch of 0Cr18Ni9 alloy fiber silk of 0.6mm is put into above-mentioned 1000mL degreasing fluid degreasing 10min with 300g fiber yarn diameter.
(2) the alloy fiber silk after the above-mentioned degreasing is clean with flushing with clean water, and it is immersed the 1000mL temperature is that oxidization time is 5min, to the oxidation of alloy fiber yarn theory of evolution in 80 ℃ the chemical oxidation liquid.The color of handling back alloy fiber silk is blue.
(3) the alloy fiber silk after the above-mentioned oxidation is clean with flushing with clean water, and it is immersed the 1000mL temperature is in 80 ℃ the hardening bath, immersion treatment 5min.
(4) the alloy fiber silk after above-mentioned post bake is handled is clean with flushing with clean water, and it is immersed the 1000mL temperature is in 100 ℃ the confining liquid, immersion treatment 3min.
(5) with the clean and oven dry of the alloy fiber silk behind the above-mentioned sealing treatment with flushing with clean water.
Embodiment 3.
Adopt method provided by the invention to carry out the surface modification treatment of alloy fiber silk.
1, the preparation of alloy fiber silk degreasing fluid, chemical oxidation liquid, hardening bath and confining liquid:
(1) by weight percentage, preparation 1000mL contains the aqueous solution of 5% sodium hydroxide, 2% yellow soda ash, 3% X 2073,1%OP-10, as degreasing fluid.
(2) by weight percentage, preparation 1000mL contains the aqueous solution of 35% sulfuric acid and 18% chromium trioxide, as chemical oxidation liquid.
(3) by weight percentage, preparation 1000mL contains the aqueous solution of 3% SRM 935a and 0.5% sodium hydroxide, as hardening bath.
(4) by weight percentage, preparation 1000mL weight percentage is 5% sodium silicate aqueous solution, as confining liquid.
2, the surface modification treatment of 1Cr18Ni12Mo2Ti alloy fiber silk:
(1) be that a branch of 00Cr17Ni14Mo2 alloy fiber silk of 0.6mm is put into above-mentioned 1000mL degreasing fluid degreasing 1min with 300g fiber yarn diameter.
(2) the alloy fiber silk after the above-mentioned degreasing is clean with flushing with clean water, and it is immersed the 1000mL temperature is that oxidization time is 6min, to the oxidation of alloy fiber yarn theory of evolution in 75 ℃ the chemical oxidation liquid.The color of handling back alloy fiber silk is blue.
(3) the alloy fiber silk after the above-mentioned oxidation is clean with flushing with clean water, and it is immersed the 1000mL temperature is in 50 ℃ the hardening bath, immersion treatment 10min.
(4) the alloy fiber silk after above-mentioned post bake is handled is clean with flushing with clean water, and it is immersed the 1000mL temperature is in 60 ℃ the confining liquid, immersion treatment 5min.
(5) with the clean and oven dry of the alloy fiber silk behind the above-mentioned sealing treatment with flushing with clean water.
Adopt method provided by the invention, the erosion rate of 0Cr18Ni9,1Cr18Ni9Ti and 00Cr17Ni14Mo2 alloy fiber silk is seen table 1 before and after handling:
Table 1
Adopt method provided by the invention, the surface tension γ of 0Cr18Ni9,1Cr18Ni9Ti and 1Cr18Ni12Mo2Ti alloy fiber silk before and after handling
GsAnd polar component γ
Gs pWith nonpolar component γ
Gs dSee table 2:
Table 2
Can find out that from table 1 method provided by the invention can improve the corrosion resisting property of alloy fiber silk.Item can find out that method provided by the invention can improve the surface tension and the polar component thereof of alloy fiber silk from table 2, thereby improve the surface hydrophilicity of alloy fiber silk.
Above-mentioned instance proves that further method provided by the invention can improve the corrosion resisting property and the surface hydrophilicity of alloy fiber silk simultaneously.
Claims (9)
1. the surface modifying method of an alloy fiber silk is characterized in that, it carries out according to the following step:
(1) pending alloy fiber silk is put into degreasing fluid degreasing 1～10min; Described degreasing fluid is the aqueous solution that contains following components in weight percentage: sodium hydroxide 1%～10%, yellow soda ash 0.5%～5%, X 2073 0.5%～5% and OP-10 0.1%～1%;
(2) the alloy fiber silk after step (1) degreasing is clean with flushing with clean water; Then it being immersed temperature is in 50～90 ℃ the chemical oxidation liquid; Described chemical oxidation liquid is the aqueous solution that contains 10%～40% sulfuric acid and 5%～20% chromium trioxide by weight percentage; The controlled oxidation time is 5～20min, is blueness or black until fiber yarn;
(3) the alloy fiber silk after step (2) oxidation is clean with flushing with clean water, then it being immersed temperature is in 50～80 ℃ the hardening bath, immersion treatment 1～10min; Described hardening bath is the aqueous solution that contains 0.5%～5% SRM 935a and 0.1%～1% sodium hydroxide by weight percentage;
(4) the alloy fiber silk after step (3) post bake is handled is clean with flushing with clean water, then it is immersed in 60～100 ℃ the confining liquid immersion treatment 1～10min; Described confining liquid is that weight percent concentration is 0.05%～5% sodium silicate aqueous solution;
(5) with the clean and oven dry of the alloy fiber silk behind step (4) sealing treatment with flushing with clean water.
2. the described method of claim 1 is characterized in that, the described degreasing fluid of step (1) contains following components in weight percentage: sodium hydroxide 5%～10%, yellow soda ash 3%～5%, X 2073 3%～5% and OP-10 0.1%～1%.
3. the described method of claim 1 is characterized in that: the described chemical oxidation liquid of step (2) contains 20%～35% sulfuric acid and 10%～20% chromium trioxide.
4. the described method of claim 1 is characterized in that: the described hardening bath of step (3) contains 3%～5% SRM 935a and 0.1%～1% sodium hydroxide.
5. the described method of claim 1, it is characterized in that: the described confining liquid of step (4) is that weight percent concentration is 0.1%～1% sodium silicate aqueous solution.
6. the described method of claim 1, it is characterized in that: the described degreasing time of step (1) is 3～5min.
7. the described method of claim 1, it is characterized in that: the described chemical oxidation liquid temp of step (2) is 60～80 ℃; Oxidization time is 5～10min.
8. the described method of claim 1, it is characterized in that: the described hardening bath temperature of step (3) is 50～70 ℃; Soak time is 3～5min.
9. the described method of claim 1, it is characterized in that: the described confining liquid temperature of step (4) is 80～100 ℃; Soak time is 3～5min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087516A (en) * | 2013-02-04 | 2013-05-08 | 四川大学 | Preparation method of nylon 6 and natural fiber composite material |
| CN103774132A (en) * | 2014-02-17 | 2014-05-07 | 北京美坚默克化工产品有限公司 | Sky-blue passivator for zinc coatings and preparation method and passivating treatment method thereof |
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| CN1847456A (en) * | 2006-05-11 | 2006-10-18 | 中南大学 | Fast colorizing process for stainless steel surface |
| CN101067187A (en) * | 2007-06-04 | 2007-11-07 | 江阴康瑞不锈钢制品有限公司 | Stainless steel wire for spoke use and producing method thereof |
| CN101220449A (en) * | 2008-01-25 | 2008-07-16 | 湖南惠同新材料股份有限公司 | Fire resistant iron chromium aluminum filament and production technique |
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Patent Citations (5)
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| US4931317A (en) * | 1988-03-30 | 1990-06-05 | Nihon Parkerizing Co., Ltd. | Composition and process for the formation of a black coating on surfaces of materials |
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| CN1847456A (en) * | 2006-05-11 | 2006-10-18 | 中南大学 | Fast colorizing process for stainless steel surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087516A (en) * | 2013-02-04 | 2013-05-08 | 四川大学 | Preparation method of nylon 6 and natural fiber composite material |
| CN103774132A (en) * | 2014-02-17 | 2014-05-07 | 北京美坚默克化工产品有限公司 | Sky-blue passivator for zinc coatings and preparation method and passivating treatment method thereof |
| CN103774132B (en) * | 2014-02-17 | 2017-01-04 | 段国波 | Sky blue passivator of a kind of zinc coat and preparation method thereof and deactivating process for the treatment of |
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