CN104031279A - Preparation method of superhydrophobic wear-resistant composite coating based on silicon rubber combustion product - Google Patents
Preparation method of superhydrophobic wear-resistant composite coating based on silicon rubber combustion product Download PDFInfo
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- CN104031279A CN104031279A CN201410251533.7A CN201410251533A CN104031279A CN 104031279 A CN104031279 A CN 104031279A CN 201410251533 A CN201410251533 A CN 201410251533A CN 104031279 A CN104031279 A CN 104031279A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention discloses a preparation method of a superhydrophobic wear-resistant composite coating based on a silicon rubber combustion product, which comprises the following steps: completely combusting silicon rubber, grinding into powder, uniformly spreading the powder on the bottom of a mold, adding a sheet polymer matrix, putting the mold on a flat vulkameter, carrying out hot pressing, cooling for stripping, and removing the loose powder on the surface of the composite coating. The method is simple and convenient, and has the advantages of low cost and no need of complicated chemical treatment; the obtained composite coating has favorable hydrophobicity, favorable wear resistance and favorable acid/alkali resistance; the static contact angle with water is greater than 150 degrees, and the roll angle is less than 10 degrees; the raw material silicon rubber can be recycled from waste silicon rubber products; and thus, the method is green and environment-friendly, and has high utilization value.
Description
Technical field
The present invention relates to a kind of preparation method of super-hydrophobic wear-resisting compound coating, be specifically related to a kind of preparation method of the super-hydrophobic wear-resisting compound coating based on silicon rubber combustionmaterial.
Background technology
Super hydrophobic surface refers to that water static contact angle is greater than the surface that 150 ° and roll angle are less than 10 °, there is using value very widely, be mainly reflected in the aspects such as automatically cleaning, anti-pollution, anti-icing antifog, anti-adhesive, anticorrosive, oily water separation, fluid drag-reduction, battery.
Although the preparation method about super hydrophobic surface has a lot, if Zhu etc. is at 390 ℃, the mixture of hot pressing CNTs and PTFE under 256kPa condition, prepare contact angle and be 159 ° and roll angle and be super-hydrophobic matrix material [the Zhu X T of 3 °, Zhang Z Z, Ren G N, et al.. A novel superhydrophobic bulk material. J. Mater. Chem., 2012, 22 (38): 20146-20148], possess good wear resisting property and recoverability energy, after repeatedly polishing, sand paper still keeps ultra-hydrophobicity, after being polluted by n-Hexadecane, matrix material can make material recover ultra-hydrophobicity by lighting removal n-Hexadecane.Yet the existing method of preparing super hydrophobic surface all exist complicated process of preparation, cost high, wear no resistance, poor stability, be difficult to the deficiencies such as mass production, therefore study the method for the multi-functional super-hydrophobic coat of simple and practical and applicable extensive preparation, development of new, intelligence and super-hydrophobic coat good mechanical stability will be the main directions of research super hydrophobic surface.
By addition; the modes such as condensation are sulfided into the formed organo-silicone rubber body with rubber property after solid; there is nontoxic, high temperature resistant, resistance to ozone ageing, good features such as electrical insulation capability, fungicidal properties and highly air-permeable energy, be widely used in the aspects such as moldings, industrial auxiliary products, medical sanitary product, foodstuffs industry, silicon rubber protective sleeve, kitchen tackle, toy, ornaments.Silicon rubber is non-petroleum product simultaneously, does not rely on petroleum resources day by day in short supply, makes silicon rubber productive consumption amount growing, has the trend that substitutes similar plasthetics.If therefore can make full use of waste silicone rubber, to reducing production costs, save energy is important in inhibiting all.
Summary of the invention
The object of this invention is to provide that a kind of preparation technology is simple, cost is lower, the preparation method of the super-hydrophobic wear-resisting compound coating based on silicon rubber combustionmaterial of environmental protection.
The preparation method of the super-hydrophobic wear-resisting compound coating based on silicon rubber combustionmaterial of the present invention, step is as follows:
(1) silicon rubber of completion of cure is lighted to it and burnt completely, gained combustionmaterial is ground to Powdered;
(2) gained powder is layered on to mold bottom equably, puts into sheet polymer matrix, the ratio of powder consumption and polymer-based carbon body surface area is 0.0096-0.024g/cm
2;
(3) mould is placed on compression molding instrument, being greater than under 4MPa and polymeric matrix melt temperature condition after hot pressing 10-120min, cooling, the demoulding;
(4) remove the loose powder in step (3) gained compound coating surface, obtain the super-hydrophobic wear-resisting compound coating of silicon rubber combustionmaterial polymer-based carbon.
In the present invention, described silicon rubber is for by addition, and condensation mode is sulfided into formed organo-silicone rubber body after solid.
In the present invention, described Powdered mortar or the shredder of can adopting that combustionmaterial is ground to grinds, pulverizing mill, wheel roller or ball mill abrasive dust, and powder beater or soybean milk maker are beaten powder.
In the present invention, described polymeric matrix can be one or more thermoplastic resins in polypropylene, polyethylene, polyvinyl chloride, polyvinylidene difluoride (PVDF), polystyrene, polycarbonate, polymeric amide, polymethylmethacrylate, polyoxymethylene, polyester, polysulfones, polyphenylene oxide.
The present invention obtains the material of unique micro-nano binary coarse structure after utilizing silicon rubber to burn, this material itself has hydrophobicity.By hot pressing, at polymer surfaces, prepare super-hydrophobic wear-resisting compound coating.
The inventive method is easy, cost is low, without complicated chemical treatment, gained compound coating hydrophobicity is good, be greater than 150 ° with the static contact angle of water, roll angle is less than 10 °, wear resistance is good, and coating resistance to acids and bases is good simultaneously, and the raw silicon rubber using can be by reclaiming waste silicone rubber goods, environmental protection, utility value is high.
Accompanying drawing explanation
Fig. 1 is field emission scanning electron microscope (FE-SEM) photo on the super-hydrophobic wear-resisting compound coating surface based on silicon rubber combustionmaterial.
Fig. 2 is the static contact angle optical photograph on the super-hydrophobic wear-resisting compound coating surface based on silicon rubber combustionmaterial.
Embodiment
Embodiment 1
By the silicon rubber of completion of cure (by addition, condensation mode is sulfided into formed organo-silicone rubber body after solid) be cut into little of 4cm * 0.5cm * 0.2cm, be placed on spirit lamp and burn completely, combustionmaterial is placed in to mortar to be ground to Powdered, at the circular die bottom even of radius 25mm, thickness 2mm, spread 0.1g combustionmaterial powder, put into polypropylene (PP) disk of corresponding die size, 180
ohot pressing 10min under C, 10MPa condition, the demoulding after product is cooling, with the sticky loose powder in compound coating surface that goes of adhesive tape, obtains super-hydrophobic wear-resisting compound coating.Its surface topography is shown in Fig. 1.The water static contact angle average that records super hydrophobic composite coating is 165 ° of (see figure 2)s, and roll angle is 8 °.
Embodiment 2
By the silicon rubber of completion of cure (by addition, condensation mode is sulfided into formed organo-silicone rubber body after solid) be cut into little of 4cm * 0.5cm * 0.2cm, be placed on spirit lamp and burn completely, combustionmaterial is placed in to mortar to be ground to Powdered, at the circular die bottom even of radius 25mm, thickness 2mm, spread 0.15g combustionmaterial powder, put into polypropylene (PP) disk of corresponding die size, 180
ohot pressing 30min under C, 10MPa condition, the demoulding after product is cooling, with the sticky loose powder in compound coating surface that goes of adhesive tape, obtains super hydrophobic composite coating.The water static contact angle average that records super hydrophobic composite coating is 161 °, and roll angle is 9 °.
Embodiment 3
Waste silicone rubber goods are cut into little of 8cm * 1.5cm * 0.2cm, be placed on spirit lamp and burn completely, combustionmaterial is placed in to mortar to be ground to Powdered, at the circular die bottom even of radius 25mm, thickness 2mm, spread 0.1g combustionmaterial powder, put into polyvinyl chloride (PVC) disk of corresponding die size, 170
ohot pressing 10min under C, 10MPa condition, the demoulding after product is cooling, with the sticky loose powder in compound coating surface that goes of adhesive tape, obtains super hydrophobic composite coating.The water static contact angle average that records super hydrophobic composite coating is 168 °, approximately 7 ° of roll angles.
Embodiment 4
Waste silicone rubber goods are cut into little of 8cm * 1.5cm * 0.2cm, be placed on spirit lamp and burn completely, combustionmaterial is placed in to mortar to be ground to Powdered, at the circular die bottom even of radius 25mm, thickness 2mm, spread 0.1g combustionmaterial powder, put into polystyrene (PS) disk of mould correspondingly-sized, 160
ohot pressing 30min under C, 10MPa condition, the demoulding after product is cooling, is placed in the ultrasonic loose powder in compound coating surface of removing of ethanol, obtains super hydrophobic composite coating.The water static contact angle average that records super hydrophobic composite coating is 165 °, and roll angle is about 7.5 °.
Embodiment 5
By the silicon rubber of completion of cure (by addition, condensation mode is sulfided into formed organo-silicone rubber body after solid) be cut into little of 4cm * 0.5cm * 0.2cm, with fire, light and treat that silicon rubber spontaneous combustion is complete, combustionmaterial is placed in to grinding in ball grinder to Powdered, at the circular die bottom even of radius 25mm, thickness 2mm, spread 0.1g combustionmaterial powder, put into polycarbonate (PC) disk of mould correspondingly-sized, 220
ohot pressing 30min under C, 12MPa condition, the demoulding after product is cooling, with the sticky loose powder in compound coating surface that goes of adhesive tape, obtains super hydrophobic composite coating.The water static contact angle average that records super hydrophobic composite coating is 163 °, and roll angle is 9 °.
Embodiment 6
Waste silicone rubber lid is cut into little of 8cm * 1.5cm * 0.2cm, be placed on spirit lamp and burn completely, combustionmaterial is placed in to powder beater to be crushed to Powdered, at the circular die bottom even of radius 25mm, thickness 2mm, spread 0.1g combustionmaterial powder, put into high density polyethylene(HDPE) (HDPE) disk of corresponding die size, 190
oc, 10MPa condition lower sheeting 30min, the demoulding after product is cooling, is placed in the ultrasonic loose powder in compound coating surface of removing of ethanol, obtains super hydrophobic composite coating.The water static contact angle average that records super hydrophobic composite coating is 164 °, and roll angle is about 8 °.
Claims (4)
1. a preparation method for the super-hydrophobic wear-resisting compound coating based on silicon rubber combustionmaterial, is characterized in that step is as follows:
(1) silicon rubber of completion of cure is lighted to it and burnt completely, gained combustionmaterial is ground to Powdered;
(2) gained powder is layered on to mold bottom equably, puts into sheet polymer matrix, the ratio of powder consumption and polymer-based carbon body surface area is 0.0096-0.024g/cm
2;
(3) mould is placed on compression molding instrument, being greater than under 4MPa and polymeric matrix melt temperature condition after hot pressing 10-120min, cooling, the demoulding;
(4) remove the loose powder in step (3) gained compound coating surface, obtain the super-hydrophobic wear-resisting compound coating of silicon rubber combustionmaterial polymer-based carbon.
2. according to the preparation method of the super-hydrophobic wear-resisting compound coating based on silicon rubber combustionmaterial claimed in claim 1, it is characterized in that described silicon rubber is for by addition, condensation mode is sulfided into formed organo-silicone rubber body after solid.
3. according to the preparation method of the super-hydrophobic wear-resisting compound coating based on silicon rubber combustionmaterial claimed in claim 1, it is characterized in that described combustionmaterial being ground to Powdered employing mortar or shredder grinds, pulverizing mill, wheel roller or ball mill abrasive dust, powder beater or soybean milk maker are beaten powder.
4. according to the preparation method of the super-hydrophobic wear-resisting compound coating based on silicon rubber combustionmaterial claimed in claim 1, it is characterized in that described polymeric matrix is one or more thermoplastic resins in polypropylene, polyethylene, polyvinyl chloride, polyvinylidene difluoride (PVDF), polystyrene, polycarbonate, polymeric amide, polymethylmethacrylate, polyoxymethylene, polyester, polysulfones, polyphenylene oxide.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196560A (en) * | 2015-10-15 | 2015-12-30 | 无锡宝通科技股份有限公司 | Method for preparing self-cleaning anti-icing rubber surface by use of waste silicone rubber product |
| CN111087922A (en) * | 2019-12-31 | 2020-05-01 | 江苏瓦楷新材料科技有限公司 | Method for preparing water repellent coating by fumigation |
| CN112480468A (en) * | 2020-11-26 | 2021-03-12 | 杭州师范大学 | Method for preparing surface super-hydrophobic silicone rubber foam at ultra-fast speed and product thereof |
| CN113372836A (en) * | 2021-05-24 | 2021-09-10 | 三峡大学 | Preparation method of adhesive super-hydrophobic film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270260A (en) * | 2008-01-28 | 2008-09-24 | 南京工业大学 | Ultra-hydrophobic surface coating material and preparation method thereof |
| US20120149814A1 (en) * | 2009-08-19 | 2012-06-14 | Jinyong Li | Ultrahydrophobic coating and method for making the same |
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2014
- 2014-06-09 CN CN201410251533.7A patent/CN104031279B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270260A (en) * | 2008-01-28 | 2008-09-24 | 南京工业大学 | Ultra-hydrophobic surface coating material and preparation method thereof |
| US20120149814A1 (en) * | 2009-08-19 | 2012-06-14 | Jinyong Li | Ultrahydrophobic coating and method for making the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196560A (en) * | 2015-10-15 | 2015-12-30 | 无锡宝通科技股份有限公司 | Method for preparing self-cleaning anti-icing rubber surface by use of waste silicone rubber product |
| CN111087922A (en) * | 2019-12-31 | 2020-05-01 | 江苏瓦楷新材料科技有限公司 | Method for preparing water repellent coating by fumigation |
| CN112480468A (en) * | 2020-11-26 | 2021-03-12 | 杭州师范大学 | Method for preparing surface super-hydrophobic silicone rubber foam at ultra-fast speed and product thereof |
| CN112480468B (en) * | 2020-11-26 | 2022-08-05 | 杭州师范大学 | Method for preparing surface super-hydrophobic silicone rubber foam at ultra-fast speed and product thereof |
| CN113372836A (en) * | 2021-05-24 | 2021-09-10 | 三峡大学 | Preparation method of adhesive super-hydrophobic film |
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