CN111335222A - Highway crash barrier coating with fog absorbing function - Google Patents
Highway crash barrier coating with fog absorbing function Download PDFInfo
- Publication number
- CN111335222A CN111335222A CN202010095867.5A CN202010095867A CN111335222A CN 111335222 A CN111335222 A CN 111335222A CN 202010095867 A CN202010095867 A CN 202010095867A CN 111335222 A CN111335222 A CN 111335222A
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- Prior art keywords
- fog
- crash barrier
- polydimethylsiloxane
- rubber
- coating
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H13/00—Dispersing or preventing fog in general, e.g. on roads, on airfields
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a highway anti-collision guardrail coating with a fog absorption function, which is made of polydimethylsiloxane rubber, and the surface of the coating is fully distributed with a micrometer-scale needle point structure. The invention provides an expressway crash barrier covering layer with a fog absorbing function, which can absorb the dense fog and the cluster fog on an expressway, thereby reducing the influence of adverse factors on traffic safety. Meanwhile, the coating also has the function of energy absorption and plays a role of buffering during impact.
Description
Technical Field
The invention relates to an expressway crash barrier coating with a fog absorbing function, and belongs to the application of micro-nano manufacturing technology in the traffic field.
Background
The fog is also called lump fog in nature, is influenced by the microclimate environment of local regions, and is thicker and lower in visibility in the local range of tens to hundreds of meters in the big fog. The outside sight line of the cluster mist is good, and the inside of the cluster mist is hazy. The regional nature of group fog is strong, forecast is difficult, especially on the highway, and group fog can lead to the sudden change of visibility, has the harm to highway traffic safety very much, easily leads to major traffic accident. The cactus in the desert can survive in the drought environment without raining for a long time, mainly benefits from the needle-tip-shaped thorn structures, the structures can not only reduce the evaporation of water, but also absorb fog in the air into water drops so as to be transported to the body. The reason is that when water in the air condenses on the long spine, the surface tension received by the bead at both ends is not uniform because the spine is tapered, and this surface tension drives the bead towards the thick end of the spine. When the water drops move to the root of the sharp thorn, the fluff (super absorbent material) growing on the root absorbs the water drops.
Disclosure of Invention
The purpose is as follows: in order to overcome the adverse effect of fog on the safety of automobiles running on the expressway, the invention provides the expressway anti-collision guardrail coating with the fog absorbing function, which can absorb the fog and buffer the impact, thereby improving the safety.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a highway crash barrier coating with inhale fog function, the coating material is flexible rubber dimethyl silicone polymer rubber, flexible rubber covers in crash barrier surface, just flexible rubber surface is covered with micron yardstick needle point structure.
Preferably, the microscale tip structures have a bottom diameter size in the range of 5 microns to 800 microns and a top diameter size in the range of 1 micron to 200 microns.
Preferably, the preparation process of the highway crash barrier coating comprises the following steps:
a) depositing a thin layer, namely a silicon dioxide layer, on a silicon wafer by an oxidation process or a chemical vapor deposition process;
b) processing the silicon dioxide layer by photoetching and reactive ion etching processes to form a silicon dioxide pattern layer to obtain a silicon substrate, wherein the pattern of the silicon dioxide pattern layer is a V-shaped pattern arranged in an array;
c) putting a silicon substrate into a potassium hydroxide solution, and etching at a certain temperature to obtain V-shaped groove structures arranged in an array;
d) the polydimethylsiloxane prepolymer and the curing agent are mixed according to the volume ratio of 10: 1, and placing the mixture into a vacuum drying oven to remove bubbles;
e) pouring the polydimethylsiloxane prepolymer treated in the step d into a silicon substrate, putting the silicon substrate into an oven, and curing at a certain temperature;
f) and uncovering the silicon substrate to obtain the polydimethylsiloxane rubber, duplicating the micron-scale needle point structures which are arranged in an array on the surface of the polydimethylsiloxane rubber, and then covering the polydimethylsiloxane rubber on the conventional anti-collision guardrail.
Preferably, the temperature in step c is in the range of 70-90 ℃.
Preferably, the curing agent in the step d is a polydimethylsiloxane curing agent.
Preferably, the temperature in step e ranges from 50 to 90 ℃.
Has the advantages that: the invention discloses a highway anti-collision guardrail coating with a fog absorption function, which can effectively absorb fog in the surrounding environment by preparing a bionic needle-shaped microstructure, and can absorb partial energy during impact due to the adoption of flexible rubber polydimethylsiloxane, so that the safety of a highway can be improved.
Drawings
Fig. 1 is a schematic view of the structure of a highway crash barrier covering of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The utility model provides a highway crash barrier coating with inhale fog function, the coating material is flexible rubber dimethyl silicone polymer rubber, flexible rubber covers in crash barrier surface, just flexible rubber surface is covered with micron yardstick needle point structure.
Preferably, the microscale tip structures have a bottom diameter size in the range of 5 microns to 800 microns and a top diameter size in the range of 1 micron to 200 microns.
Preferably, the preparation process of the highway crash barrier coating comprises the following steps:
a) depositing a thin layer, namely a silicon dioxide layer, on a silicon wafer by an oxidation process or a chemical vapor deposition process;
b) processing the silicon dioxide layer by photoetching and reactive ion etching processes to form a silicon dioxide pattern layer to obtain a silicon substrate, wherein the pattern of the silicon dioxide pattern layer is a V-shaped pattern arranged in an array;
c) putting a silicon substrate into a potassium hydroxide solution, and etching at a certain temperature to obtain V-shaped groove structures arranged in an array;
d) the polydimethylsiloxane prepolymer and the curing agent are mixed according to the volume ratio of 10: 1, and placing the mixture into a vacuum drying oven to remove bubbles;
e) pouring the polydimethylsiloxane prepolymer treated in the step d into a silicon substrate, putting the silicon substrate into an oven, and curing at a certain temperature;
f) and uncovering the silicon substrate to obtain the polydimethylsiloxane rubber, duplicating the micron-scale needle point structures which are arranged in an array on the surface of the polydimethylsiloxane rubber, and then covering the polydimethylsiloxane rubber on the conventional anti-collision guardrail.
Preferably, the temperature in step c is in the range of 70-90 ℃.
Preferably, the curing agent in the step d is a polydimethylsiloxane curing agent.
Preferably, the temperature in step e ranges from 50 to 90 ℃.
Example 1:
a highway anti-collision guardrail coating with a fog absorbing function is made of flexible rubber polydimethylsiloxane rubber and covers the surface of a conventional anti-collision guardrail. The surface of the flexible rubber is fully distributed with micron-scale needle point structures. The micron-scale needle point structure is a cone, the diameter of the bottom of the cone is 20 microns, and the diameter of the top of the cone is 3 microns.
The preparation method of the highway anti-collision guardrail coating with the fog absorbing function comprises the following steps:
a) depositing a thin layer, namely a silicon dioxide layer, on a silicon wafer by an oxidation process or a chemical vapor deposition process;
b) processing the silicon dioxide layer by photoetching and reactive ion etching processes to form a silicon dioxide pattern layer to obtain a silicon substrate, wherein the pattern of the silicon dioxide pattern layer is a V-shaped pattern arranged in an array;
c) putting a silicon wafer (with a crystal face index of 100) into a potassium hydroxide solution, heating to 80 ℃, and etching for 2 hours to obtain a V-shaped groove structure arranged in an array;
d) mixing polydimethylsiloxane prepolymer and curing agent according to the weight ratio of 10: 1, and placing the mixture into a vacuum drying oven to remove bubbles;
e) pouring the polydimethylsiloxane prepolymer treated in the step d into a silicon wafer, putting the silicon wafer into an oven, and curing the silicon wafer for 2 hours at the temperature of 65 ℃;
f) and uncovering the silicon substrate to obtain the polydimethylsiloxane rubber, duplicating the micron-scale needle point structures which are arranged in an array on the surface of the polydimethylsiloxane rubber, and then covering the polydimethylsiloxane rubber on the conventional anti-collision guardrail.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Two modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a highway crash barrier coating with inhale fog function which characterized in that, the coating material is flexible rubber dimethyl silicone polymer rubber, flexible rubber covers in crash barrier surface, just flexible rubber surface is covered with micron yardstick needle point structure.
2. The highway crash barrier covering with a fog absorbing function as recited in claim 1, wherein: the microscale tip structures have a bottom diameter ranging from 5 microns to 800 microns and a top diameter ranging from 1 micron to 200 microns.
3. The highway crash barrier covering with a fog absorbing function as recited in claim 1, wherein: the preparation process of the highway anti-collision guardrail coating comprises the following steps:
a) depositing a thin layer, namely a silicon dioxide layer, on a silicon wafer by an oxidation process or a chemical vapor deposition process;
b) processing the silicon dioxide layer by photoetching and reactive ion etching processes to form a silicon dioxide pattern layer to obtain a silicon substrate, wherein the pattern of the silicon dioxide pattern layer is a V-shaped pattern arranged in an array;
c) putting a silicon substrate into a potassium hydroxide solution, and etching at a certain temperature to obtain V-shaped groove structures arranged in an array;
d) the polydimethylsiloxane prepolymer and the curing agent are mixed according to the volume ratio of 10: 1, and placing the mixture into a vacuum drying oven to remove bubbles;
e) pouring the polydimethylsiloxane prepolymer treated in the step d into a silicon substrate, putting the silicon substrate into an oven, and curing at a certain temperature;
f) and uncovering the silicon substrate to obtain the polydimethylsiloxane rubber, duplicating the micron-scale needle point structures which are arranged in an array on the surface of the polydimethylsiloxane rubber, and then covering the polydimethylsiloxane rubber on the conventional anti-collision guardrail.
4. A highway crash barrier covering with a fog absorbing function according to claim 3 wherein the temperature in step c ranges from 70 ℃ to 90 ℃.
5. The coating of claim 3, wherein the curing agent in step d is polydimethylsiloxane curing agent.
6. A highway crash barrier covering with a fog absorbing function according to claim 3 wherein the temperature in step e ranges from 50 to 90 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010095867.5A CN111335222A (en) | 2020-02-17 | 2020-02-17 | Highway crash barrier coating with fog absorbing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010095867.5A CN111335222A (en) | 2020-02-17 | 2020-02-17 | Highway crash barrier coating with fog absorbing function |
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| CN111335222A true CN111335222A (en) | 2020-06-26 |
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| CN202010095867.5A Pending CN111335222A (en) | 2020-02-17 | 2020-02-17 | Highway crash barrier coating with fog absorbing function |
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| WO2002036342A1 (en) * | 2000-11-02 | 2002-05-10 | Surface Logix, Inc. | Polymer gel contact masks and methods and molds for making same |
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| WO2010138132A1 (en) * | 2009-05-26 | 2010-12-02 | The Board Of Trustees Of The University Of Illinois | Casting microstructures into stiff and durable materials from a flexible and reusable mold |
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| CN110170747A (en) * | 2019-06-24 | 2019-08-27 | 吉林大学 | A kind of bionic coupling catchments the preparation method on the anti-icing surface of aluminium alloy |
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2020
- 2020-02-17 CN CN202010095867.5A patent/CN111335222A/en active Pending
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| CN1588232A (en) * | 2004-08-05 | 2005-03-02 | 上海交通大学 | Method for realizing micro nano pattern transfer based on rotary coating and bonding |
| WO2010138132A1 (en) * | 2009-05-26 | 2010-12-02 | The Board Of Trustees Of The University Of Illinois | Casting microstructures into stiff and durable materials from a flexible and reusable mold |
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Application publication date: 20200626 |