CN113621311A - Polypropylene wax for road marking and preparation method thereof - Google Patents
Polypropylene wax for road marking and preparation method thereof Download PDFInfo
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- CN113621311A CN113621311A CN202110867369.2A CN202110867369A CN113621311A CN 113621311 A CN113621311 A CN 113621311A CN 202110867369 A CN202110867369 A CN 202110867369A CN 113621311 A CN113621311 A CN 113621311A
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- polypropylene
- wax
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- road marking
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
- C09D191/06—Waxes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/10—Homopolymers or copolymers of propene
- C09D123/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/80—Processes for incorporating ingredients
Abstract
The invention discloses a polypropylene wax for road markings and a preparation method thereof, belonging to the technical field of road construction, and the polypropylene wax for road markings and the preparation method thereof comprise the following steps: step one, raw material preparation, namely adding 50 to 80 percent of Fischer-Tropsch refined wax into a closed mixing container, and then adding 50 to 20 percent of polypropylene. This polypropylene wax for road marking and preparation method thereof, through the preliminary melting of the refined wax of fischer-tropsch, can realize the stable melting parcel to polypropylene, reduce the regulation that polypropylene melts, and then reduce the degree of difficulty of production polypropylene wax, conveniently improve production efficiency, make polypropylene melt fast, the energy consumption of firing equipment has been reduced, the cost of production has further been reduced, the high viscosity, the special road marking of the protruding special hot melt type in high rigidity road surface, can improve the protruding and high viscosity in road surface and reduce manufacturing cost, solve high-risk production technology, avoid using the extrusion mode of hot melt screw rod to open the molecular chain of polypropylene.
Description
Technical Field
The invention relates to the technical field of highway construction, in particular to polypropylene wax for a road marking and a preparation method thereof.
Background
The highway is a road for public traffic, the road is an engineering facility for various vehicles (trackless) and pedestrians to pass through, and is divided into an urban road, a highway, a factory road, a forest road, a rural road and the like according to the use characteristics of the highway, the highway is constructed according to the highway engineering technical standard specified by the state according to relevant regulations and technical standards of highway management, and the highway is a public road which can be used for driving automobiles in cities, towns and villages and is approved and identified by a highway administration department.
The road marking is divided into: the hot-melt marked line is the most widely applied marked line on the road marked line in China, and has short construction time, high wear resistance and low manufacturing cost.
At present, polypropylene wax is mostly adopted for hot melt marked lines, two raw materials are compounded, one is powder polypropylene, the other is coal-based Fischer-Tropsch refined wax, the melting point of the polypropylene is 160-180 ℃, the polypropylene is a high-viscosity high polymer material, the polypropylene is extruded by a screw rod at one time before, the high polymer can be opened and changed into the polypropylene wax after the heating temperature is 500 ℃, although the method can achieve the effect, the high energy consumption is high, the high temperature danger is high, the potential safety hazard can be frequently generated in the production process, and the time required for heating and melting is long.
Disclosure of Invention
The invention aims to provide polypropylene wax for a road marking and a preparation method thereof. The polypropylene wax for the road marking and the preparation method thereof can improve the road surface convexity and high viscosity, reduce the production cost and solve the high-risk production process.
In order to achieve the above effects, the present invention provides the following technical solutions: the polypropylene wax for the road marking comprises the following raw materials: 50-80% of Fischer-Tropsch refined wax and 20-50% of polypropylene.
The method for preparing the polypropylene wax for the road marking of claim 1, which comprises the following steps:
step one, raw material preparation, namely adding 50-80% of Fischer-Tropsch refined wax into a closed mixing container, and then adding 20-50% of polypropylene.
And step two, stirring and batching, namely stirring and mixing the Fischer-Tropsch refined wax and the polypropylene, and sealing by adopting a waterproof sealing bag for later use.
And step three, heating and mixing, opening the waterproof sealing bag, and putting the stirred and mixed Fischer-Tropsch refined wax and polypropylene into a heating container for heating.
And step four, outputting finished products, namely converting the melted Fischer-Tropsch refined wax into liquid at 110 ℃, and then softening the polypropylene to obtain the finished products.
Further, according to the operation steps in the step one, the Fischer-Tropsch refined wax needs to be frozen before being stirred and mixed, so that the temperature of the Fischer-Tropsch refined wax is 10 ℃.
Further, according to the operation steps in the first step, the polypropylene is spherical particles and does not generate agglomeration, and the polypropylene is dried and dedusted before being put into the closed mixing container.
Further, according to the operation step in the second step, the heating container adopts a heat-insulating stirring device, and the stirring speed of the heating container is less than 80 revolutions per second.
Further, according to the operation steps in the second step, a porous water-absorbing silica gel column is arranged inside the waterproof sealing bag to ensure that the inside is dry.
Further, according to the operation steps in the third step, the heating temperature of the heating vessel is maintained at 110 ℃ until all the Fischer-Tropsch refined wax is melted to be liquid.
Further, according to the operation steps in the third step, after the Fischer-Tropsch refined wax is melted into liquid, the heating temperature is adjusted to 200 ℃ and kept constant.
Further, according to the operation steps in the fourth step, the melting point of the Fischer-Tropsch refined wax is 108 ℃, and the melting point of the polypropylene is 189 ℃.
Further, according to the operation steps in the fourth step, the finished product is polypropylene wax, and polypropylene polymer chains are opened after the finished product is heated. .
The invention provides a polypropylene wax for road markings and a preparation method thereof, and the polypropylene wax has the following beneficial effects:
(1) according to the polypropylene wax for the road marking and the preparation method thereof, stable melting and wrapping of polypropylene can be realized through pre-melting of the Fischer-Tropsch refined wax, the adjustment of polypropylene melting is reduced, the difficulty of producing the polypropylene wax is further reduced, and the production efficiency is conveniently improved.
(2) According to the polypropylene wax for the road marking and the preparation method thereof, the polypropylene is quickly melted by pre-melting the Fischer-Tropsch refined wax, so that the energy consumption of heating equipment is reduced, and the production cost is further reduced.
(3) The preparation method of the polypropylene wax for the road marking can improve the road surface convexity and the high viscosity, reduce the production cost, solve the high-risk production process and avoid opening the molecular chain of polypropylene by using the extrusion mode of a hot-melting screw.
Drawings
FIG. 1 is a schematic view of the preparation method of the present invention.
Detailed Description
The invention provides a technical scheme that: referring to fig. 1, a polypropylene wax for a road marking comprises the following raw materials: 50-80% of Fischer-Tropsch refined wax and 20-50% of polypropylene.
A method of preparing the polypropylene wax for road markings of claim 1, comprising the steps of:
step one, raw material preparation, namely adding 50-80% of Fischer-Tropsch refined wax into a closed mixing container, and then adding 20-50% of polypropylene.
And step two, stirring and batching, namely stirring and mixing the Fischer-Tropsch refined wax and the polypropylene, and sealing by adopting a waterproof sealing bag for later use.
And step three, heating and mixing, opening the waterproof sealing bag, and putting the stirred and mixed Fischer-Tropsch refined wax and polypropylene into a heating container for heating.
And step four, outputting finished products, namely converting the melted Fischer-Tropsch refined wax into liquid at 110 ℃, and then softening the polypropylene to obtain the finished products.
Specifically, according to the operation steps in the step one, the Fischer-Tropsch refined wax needs to be frozen before being stirred and mixed, so that the temperature of the Fischer-Tropsch refined wax is 10 ℃.
Specifically, according to the operation steps in the step one, the polypropylene is spherical particles and does not generate agglomeration, and the polypropylene is dried and dedusted before being put into the closed mixing container.
Specifically, according to the operation step in the second step, the heating container adopts a heat-insulating stirring device, and the stirring speed of the heating container is less than 80 revolutions per second.
Specifically, according to the operation steps in the second step, a porous water-absorbing silica gel column is arranged inside the waterproof sealing bag to ensure that the interior is dry.
Specifically, according to the operation steps in the third step, the heating temperature of the heating vessel is maintained at 110 ℃ until all the Fischer-Tropsch refined wax is melted to be liquid.
Specifically, according to the operation steps in the third step, after the Fischer-Tropsch refined wax is melted into liquid, the heating temperature is adjusted to 200 ℃ and kept constant.
Specifically, according to the operation steps in the fourth step, the melting point of the Fischer-Tropsch refined wax is 108 ℃, and the melting point of the polypropylene is 189 ℃.
Specifically, according to the operation steps in the fourth step, the finished product is polypropylene wax, and polypropylene polymer chains are opened after the polypropylene wax is heated.
The method of the examples was performed for detection analysis and compared to the prior art to yield the following data:
table-one test analysis
| Production efficiency | Production cost | Safety in production | |
| Examples | Is higher than | Is higher than | Is higher than |
| Prior Art | Is lower than | Is lower than | Is lower than |
According to the table data, the embodiment shows that the polypropylene wax for the road marking and the preparation method thereof can improve the road surface convexity and high viscosity, reduce the production cost and solve the high-risk production process.
The invention provides a polypropylene wax for a road marking, which comprises the following raw materials: 50-80% of Fischer-Tropsch refined wax and 20-50% of polypropylene. A method of preparing the polypropylene wax for road markings of claim 1, comprising the steps of: step one, raw material preparation, namely adding 50-80% of Fischer-Tropsch refined wax into a closed mixing container, then adding 20-50% of polypropylene, wherein the Fischer-Tropsch refined wax needs to be frozen before being stirred and mixed, so that the temperature of the Fischer-Tropsch refined wax is 10 ℃, on one hand, stirring and mixing with the Fischer-Tropsch refined wax are hindered, on the other hand, the Fischer-Tropsch refined wax cannot be rapidly softened by absorbing heat, and further, a large amount of electric energy is consumed for heating, the actual construction cost is increased, the polypropylene needs to be additionally dried and dedusted before being put into the closed mixing container, on the other hand, stirring and batching are carried out, the Fischer-Tropsch refined wax and the polypropylene are stirred and mixed, and are sealed by a waterproof sealing bag for standby, the polypropylene is spherical and does not generate a caking phenomenon, and the polypropylene is dried and dedusted before being put into the closed mixing container, the heating container adopts a heat-insulating stirring device, the stirring rotating speed of the heating container is less than 80 revolutions per second, a porous water-absorbing silica gel column is arranged inside the waterproof sealing bag to ensure that the interior is dry, moisture in the air inside the waterproof sealing bag can be absorbed through the porous water-absorbing silica gel column to avoid polypropylene agglomeration caused by humid air before melting, step three, heating and mixing are carried out, the waterproof sealing bag is opened, the Fischer-Tropsch refined wax and the polypropylene after stirring and mixing are put into the heating container to be heated, the heating temperature of the heating container is maintained at 110 ℃ until all the Fischer-Tropsch refined wax is melted into liquid, the heating temperature is adjusted to 200 ℃ and kept constant after the Fischer-Tropsch refined wax is melted into liquid, heat concentration can be realized through the Fischer-Tropsch refined wax, the polypropylene is ensured to be uniformly heated, the contact area is ensured, and the melting efficiency is improved, and step four, outputting a finished product, namely converting the molten Fischer-Tropsch refined wax into liquid at 110 ℃, softening the polypropylene to prepare the finished product, wherein the melting point of the Fischer-Tropsch refined wax is 108 ℃, the melting point of the polypropylene is 189 ℃, the finished product is the polypropylene wax, and the polypropylene polymer chain is opened after the polypropylene wax is heated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The polypropylene wax for the road marking is characterized by comprising the following raw materials: 50-80% of Fischer-Tropsch refined wax and 20-50% of polypropylene.
2. The method for preparing the polypropylene wax for the road marking of claim 1, which comprises the following steps:
s1, preparing raw materials, namely adding 50-80% of Fischer-Tropsch refined wax into a closed mixing container, and then adding 20-50% of polypropylene;
s2, stirring and batching, namely stirring and mixing the Fischer-Tropsch refined wax and the polypropylene, and sealing by adopting a waterproof sealing bag for later use;
s3, heating and mixing, opening a waterproof sealing bag, and putting the stirred and mixed Fischer-Tropsch refined wax and polypropylene into a heating container for heating;
and S4, outputting a finished product, namely converting the molten Fischer-Tropsch refined wax into liquid at 110 ℃, and softening polypropylene to obtain the finished product.
3. The method for preparing the polypropylene wax for the road marking according to claim 2, which is characterized by comprising the following steps: according to the operation steps in the step one, the Fischer-Tropsch refined wax needs to be frozen before being stirred and mixed, so that the temperature of the Fischer-Tropsch refined wax is 10 ℃.
4. The method for preparing the polypropylene wax for the road marking according to claim 3, which is characterized by comprising the following steps: according to the operation steps in the first step, the polypropylene is spherical particles and does not generate agglomeration, and the polypropylene is dried and dedusted before being put into a closed mixing container.
5. The method for preparing the polypropylene wax for the road marking according to claim 4, which is characterized by comprising the following steps: according to the operation step in the second step, the heating container adopts a heat-insulating stirring device, and the stirring speed of the heating container is less than 80 revolutions per second.
6. The polypropylene wax for road markings and the preparation method thereof as claimed in claim 5, wherein the method comprises the following steps: according to the operation steps in the second step, a porous water-absorbing silica gel column is arranged inside the waterproof sealing bag to ensure that the interior is dry.
7. The method for preparing the polypropylene wax for the road marking according to claim 6, which comprises the following steps: according to the operation steps in the third step, the heating temperature of the heating container is maintained at 110 ℃ until all the Fischer-Tropsch refined wax is melted to be liquid.
8. The method for preparing the polypropylene wax for the road marking according to claim 7, which is characterized by comprising the following steps: according to the operation steps in the third step, after the Fischer-Tropsch refined wax is melted into liquid, the heating temperature is adjusted to 200 ℃ and kept constant.
9. The method for preparing the polypropylene wax for the road marking according to claim 8, which comprises the following steps: according to the operation steps in the fourth step, the melting point of the Fischer-Tropsch refined wax is 108 ℃, and the melting point of the polypropylene is 189 ℃.
10. The method for preparing the polypropylene wax for the road marking according to claim 9, which comprises the following steps: according to the operation steps in the fourth step, the finished product is polypropylene wax, and polypropylene polymer chains are opened after the finished product is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110867369.2A CN113621311A (en) | 2021-07-30 | 2021-07-30 | Polypropylene wax for road marking and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110867369.2A CN113621311A (en) | 2021-07-30 | 2021-07-30 | Polypropylene wax for road marking and preparation method thereof |
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| Publication Number | Publication Date |
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| CN113621311A true CN113621311A (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110867369.2A Pending CN113621311A (en) | 2021-07-30 | 2021-07-30 | Polypropylene wax for road marking and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618044A (en) * | 2011-01-27 | 2012-08-01 | 中科合成油技术有限公司 | Antirust wax |
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2021
- 2021-07-30 CN CN202110867369.2A patent/CN113621311A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618044A (en) * | 2011-01-27 | 2012-08-01 | 中科合成油技术有限公司 | Antirust wax |
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Application publication date: 20211109 |
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