CN105255318B - A kind of wear-resisting nanometer Al2O3-CaCO3The preparation method of epoxy composite coating - Google Patents
A kind of wear-resisting nanometer Al2O3-CaCO3The preparation method of epoxy composite coating Download PDFInfo
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- CN105255318B CN105255318B CN201510764672.4A CN201510764672A CN105255318B CN 105255318 B CN105255318 B CN 105255318B CN 201510764672 A CN201510764672 A CN 201510764672A CN 105255318 B CN105255318 B CN 105255318B
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Abstract
The invention discloses a kind of wear-resisting nanometer Al2O3‑CaCO3Epoxy composite coating, preparation method includes the following steps: (1) preparation of base-material；(2) modified CaCO3Preparation；(3) Modification on Al2O3Preparation；(4) wear-resisting nanometer Al2O3‑CaCO3The preparation of epoxy composite coating: base-material, modified CaCO are weighed3, Modification on Al2O3, mixing, ultrasonic disperse 30min, formation dispersed system, then it moves it into spray gun, rectangle steel disc of the high pressure painting surface through blasting treatment, normal temperature cure 30min after the completion of spraying, 60min is toasted at 120 DEG C, toasts 120min at 220 DEG C, obtains wear-resisting nanometer Al2O3‑CaCO3Epoxy composite coating.In preparation process, by modified CaCO3, Modification on Al2O3In conjunction with epoxy resin, the Wear Resistance prepared is good.
Description
Technical field
The invention belongs to the preparation method fields of epoxy composite material, and in particular to a kind of wear-resisting nanometer Al2O3-
CaCO3The preparation method of epoxy composite coating.
Background technique
Epoxy resin refers to that the high-molecular compound in molecular structure containing epoxy group, the epoxy resin after solidification have
Good physics, chemical property, it has excellent adhesion strength to the surface of metal and nonmetallic materials, and dielectric properties are good
Good, set shrinking percentage is small, and product size stability is good, and hardness is high, and flexibility is preferable, to alkali and most of solvent-stable, can make
The purposes such as casting, dipping, lamination material, binder, coating.
But when preparing epoxy composite coating, aluminium oxide or TiO are often added2Equal inorganic fillers, but its composite coating is answered
For wearing equipment, coating is easy to be rubbed and lost, and wear-resisting property is bad.
Summary of the invention
The wear-resisting nanometer Al of one kind that the present invention provides in view of the above shortcomings2O3-CaCO3Epoxy composite coating
Preparation method, this method is using modified nanometer Al2O3, modified CaCO3In conjunction with epoxy resin, wear-resisting nanometer is prepared
Al2O3-CaCO3Epoxy composite coating.
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is:
A kind of wear-resisting nanometer Al2O3-CaCO3The preparation method of epoxy composite coating, comprising the following steps:
(1) preparation of base-material
Epoxy resin, curing agent, acetone mixing are weighed, 300r/min is stirred 6 days, and then 60r/min is stirred 1 day, is obtained
Mixed uniformly base-material；
(2) modified CaCO3Preparation
Weigh 9.8g CaCO3It is mixed with 100mL acetone, ultrasonic disperse 10min, adjusts pH=5.0 using acetic acid, then
0.2g KH560,85 DEG C of reaction 4h are added, then with acetone washing 2 times, the dry 2h at 110 DEG C grinds up to modified CaCO3；
(3) Modification on Al2O3Preparation
Nano aluminium oxide 9.8g and 100mL acetone is weighed, ultrasonic disperse 30min adjusts pH=5.5 using acetic acid, then
0.4g KH560,85 DEG C of reaction 4h are added, then with acetone washing 2 times, dry 3h, grinds up to Modification on Al at 110 DEG C2O3；
(4) wear-resisting nanometer Al2O3-CaCO3The preparation of epoxy composite coating
Weigh base-material, modified CaCO3, Modification on Al2O3, mixing, ultrasonic disperse 30min, formation dispersed system, then
Dispersed system is moved into spray gun, rectangle steel disc of the high pressure painting surface through blasting treatment, after the completion of spraying, room temperature
Solidify 30min, toasts 60min at 120 DEG C, toast 120min at 220 DEG C, obtain wear-resisting nanometer Al2O3-CaCO3Epoxy composite
Coating.
Further, epoxy resin in step (1), curing agent, acetone weight ratio be 3-4:1:3-4.
Further, curing agent is ethylenediamine, diethylenetriamine, triethylene tetramine in step (1).
Further, base-material accounts for the 40% of dispersed system total weight in step (4).
Further, modified CaCO in step (4)3Account for the 40%-60% of dispersed system total weight.
Further, Modification on Al in step (4)2O3Account for the 0-20% of dispersed system total weight.
The wear-resisting nanometer Al of one kind provided by the invention2O3-CaCO3Epoxy composite coating and preparation method thereof, have with
It is lower the utility model has the advantages that
(1) the preparation process simple possible, it is at low cost, it is suitable for industrialized production.
(2) in the preparation process, by modified CaCO3, Modification on Al2O3In conjunction with epoxy resin, the Wear Resistance prepared
It is good.
Detailed description of the invention
Fig. 1 is the wearability test result of every kind of composite coating.
Specific embodiment
Embodiment 1
A kind of wear-resisting nanometer Al2O3-CaCO3The preparation method of epoxy composite coating, comprising the following steps:
(1) preparation of base-material
It is mixed to weigh epoxy resin (EP) 300g for being ground into fine-powdered, short-chain fat amine hardener 100g and 350g acetone
It closes, 300r/min is stirred 6 days, and then 60r/min is stirred 1 day, the base-material being uniformly mixed；Wherein short-chain fat amine hardener
For ethylenediamine (EDA), diethylenetriamine (DTA) or triethylene tetramine (TTA)；
(2) modified CaCO3Preparation
Weigh 9.8g CaCO3It is mixed with 100mL acetone, ultrasonic disperse 10min is then added in there-necked flask, at 85 DEG C
It uses acetic acid to adjust pH=5.0 under 250r/min, a drop is added dropwise every 1min using the microsyringe that range is 1mL
0.2g is added dropwise in KH560 coupling agent altogether, reacts 4h, filters while hot, and using acetone washing 2 times, dry 2h, grinding are at 110 DEG C
CaCO must be modified3；
(3) Modification on Al2O3Preparation
Nano aluminium oxide 9.8g and 100mL acetone is weighed, then ultrasonic disperse 30min is mixed liquid and is added to three mouthfuls
In bottle, KH560 coupling agent 0.4g is slowly added dropwise after adjusting pH=5.5 using acetic acid under 85 DEG C and 300r/min, reaction 4 is small
When, it filters while hot, using acetone washing 2 times, dry 3h, is ground up to Modification on Al at 110 DEG C2O3；
(4) wear-resisting nanometer Al2O3-CaCO3The preparation of epoxy composite coating
Weigh base-material, modified CaCO3, Modification on Al2O3, it mixing, ultrasonic disperse 30min forms it into dispersed system,
Then its dispersed system is moved into spray gun, rectangle steel disc of the high pressure painting surface through blasting treatment, spraying is completed
Afterwards, normal temperature cure 30min toasts 60min at 120 DEG C, toasts 120min at 220 DEG C.Wherein, base-material, modified CaCO3, it is modified
Al2O3The ratio for accounting for dispersion total weight respectively is shown in Table 1:
1 base-material of table, modified CaCO3, modified aluminas match table
| Sample | Base-material (wt%) | Modified CaCO3(wt%) | Modification on Al2O3(wt%) |
| 1 | 40 | 60 | 0 |
| 2 | 40 | 59 | 1 |
| 3 | 40 | 55 | 5 |
| 4 | 40 | 50 | 10 |
| 5 | 40 | 45 | 15 |
| 6 | 40 | 40 | 20 |
Experimental example wearability test
The wearability of each sample is tested using wear-resistant tester, each sample is surveyed 3 times, 1000 turns every time, calculates sample
Bodies lost weight, as a result as shown in table 2 and attached drawing 1.
The wear-resisting value of the every kind of sample of table 2
| Sample 1 | Sample 2 | Sample 3 | Sample 4 | Sample 5 | Sample 6 | |
| Initial amount (g) | 56.1254 | 54.8038 | 53.2768 | 56.5745 | 59.6239 | 55.9841 |
| 1000 turns | 56.1081 | 54.7876 | 53.2634 | 56.5649 | 59.6156 | 55.9765 |
| Loss amount (g) | 0.0173 | 0.0162 | 0.0134 | 0.0096 | 0.0083 | 0.0076 |
| 1000 turns | 56.0935 | 54.7737 | 53.2262 | 56.5571 | 59.6083 | 55.9695 |
| Loss amount (g) | 0.0146 | 0.0139 | 0.0103 | 0.0078 | 0.0073 | 0.0070 |
| 1000 turns | 56.0768 | 54.7579 | 53.2531 | 56.5478 | 59.5996 | 55.9610 |
| Loss amount (g) | 0.0167 | 0.0158 | 0.0124 | 0.0093 | 0.0087 | 0.0085 |
| Average loss amount (g) | 0.0162 | 0.0153 | 0.0121 | 0.0089 | 0.0081 | 0.0077 |
It can be obtained by table 2, the Al of wt%=0% is contained in filler2O3When, average loss weight is 0.0162g；When in filler
Al containing wt%=15%2O3When, average loss weight be 0.0081g, and only wt%=0% when average loss amount
50%；And contain the Al of wt%=20% in filler2O3When, average loss weight be 0.0077g, and only wt%=0% when
The 47.53% of average loss amount；With Al2O3Quality increase, the bodies lost weight of coating tends to reduce, when additive amount is
When wt%=15% and wt%=20%, the difference of the bodies lost weight of the two only has 0.4mg, illustrates to be further added by its dosage downward trend
It is smaller.From the above data, as nanometer Al2O3When additive amount is wt%=15%, wear-resisting nanometer Al2O3-CaCO3Epoxy
The wear-resisting property of composite coating be improved significantly.
Claims (2)
1. a kind of wear-resisting nanometer Al2O3-CaCO3The preparation method of epoxy composite coating, comprising the following steps:
(1) preparation of base-material
Epoxy resin, curing agent, acetone mixing are weighed, 300r/min is stirred 6 days, and then 60r/min is stirred 1 day, is obtained uniformly
Mixed base-material, wherein epoxy resin, curing agent, acetone weight ratio be 3-4:1:3-4；
(2) modified CaCO3Preparation
Weigh 9.8g CaCO3It is mixed with 100mL acetone, ultrasonic disperse 10min, adjusts pH=5.0 using acetic acid, then add
0.2g KH560,85 DEG C of reaction 4h, then with acetone washing 2 times, the dry 2h at 110 DEG C is ground up to modified CaCO3；
(3) Modification on Al2O3Preparation
Nano aluminium oxide 9.8g and 100mL acetone is weighed, ultrasonic disperse 30min adjusts pH=5.5 using acetic acid, then adds
0.4g KH560,85 DEG C of reaction 4h, then with acetone washing 2 times, dry 3h, is ground up to Modification on Al at 110 DEG C2O3；
(4) wear-resisting nanometer Al2O3-CaCO3The preparation of epoxy composite coating
Weigh base-material, modified CaCO3, Modification on Al2O3, mixing, ultrasonic disperse 30min, formation dispersed system then will be equal
Even dispersion moves into spray gun, rectangle steel disc of the high pressure painting surface through blasting treatment, after the completion of spraying, normal temperature cure
30min toasts 60min at 120 DEG C, toasts 120min at 220 DEG C, obtain wear-resisting nanometer Al2O3-CaCO3Epoxy composite coating,
Wherein, base-material, modified calcium carbonate, Modification on Al2O3Account for 40%, 45% and the 15% of dispersed system total weight.
2. the wear-resisting nanometer Al of one kind according to claim 12O3-CaCO3The preparation method of epoxy composite coating, it is special
Sign is that curing agent is ethylenediamine, diethylenetriamine, triethylene tetramine in step (1).
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205180A (en) * | 2013-04-23 | 2013-07-17 | 武汉海德天物新材料有限公司 | Weather-proof epoxy nano-composite coating |
| CN103589274A (en) * | 2012-08-13 | 2014-02-19 | 上海建冶科技工程股份有限公司 | Heat insulation anticorrosive paint and manufacturing method thereof |
| CN104559661A (en) * | 2014-12-29 | 2015-04-29 | 贝迪斯电子有限公司 | Coating used for metal film resistor encapsulating layer and preparation method thereof |
| CN104962196A (en) * | 2015-07-30 | 2015-10-07 | 江门市华材新材料科技实业有限公司 | High-temperature anticorrosive coating for locomotive engine and preparation method of high-temperature anticorrosive coating |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589274A (en) * | 2012-08-13 | 2014-02-19 | 上海建冶科技工程股份有限公司 | Heat insulation anticorrosive paint and manufacturing method thereof |
| CN103205180A (en) * | 2013-04-23 | 2013-07-17 | 武汉海德天物新材料有限公司 | Weather-proof epoxy nano-composite coating |
| CN104559661A (en) * | 2014-12-29 | 2015-04-29 | 贝迪斯电子有限公司 | Coating used for metal film resistor encapsulating layer and preparation method thereof |
| CN104962196A (en) * | 2015-07-30 | 2015-10-07 | 江门市华材新材料科技实业有限公司 | High-temperature anticorrosive coating for locomotive engine and preparation method of high-temperature anticorrosive coating |
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Effective date of registration: 20221228 Address after: No.6-5, 2nd Floor, Building A, Hi tech Incubation Park, No. 1480, North Section of Tianfu Avenue, Hi tech Zone, Chengdu, Sichuan 610095 Patentee after: CHENGDU SHIDA LIDUN TECHNOLOGY CO.,LTD. Address before: 610599 No. 8 Xindu Avenue, Xindu District, Chengdu City, Sichuan Province Patentee before: SOUTHWEST PETROLEUM University |