Thermoplastic for road marking. The composition of thermoplastic for marking the carriageway of highways. Rich Chemical Company is a manufacturer of thermoplastic
Usage: the invention relates to compositions for road marking. The essence of the invention: thermoplastic composition contains polyester resin PS-01 with an acid number of 15-70 mg KOH/g, a melting point of 60-90 o C, obtained on the basis of phthalic anhydride, ethylene glycol, glycerin in the presence of a catalyst phosphoric acid 19.0 - 33.4%, waste of thermoplastic polyurethane in the form of chips or small trimmings 0.1 - 5.0%, titanium dioxide 4.0 - 10.0%, quartz or construction sand 60.0 - 70.0% , aerosil or transformer oil 0.5 - 2.5%. Pre-ground components are mixed with room temperature. Characteristics of properties: adhesion to asphalt 10.51 - 12.85 kgf / cm 2, wear 0.06 - 0.09 cm 2 / min, spreading at 1805 o C 3 - 4 mm, whiteness 63%, hardening time 4.5 - 5.0 min. 1 tab.
The invention relates to road marking compositions. Traffic safety largely depends on the quality of roads and the condition of traffic signaling. Known for a wide range of thermoplastic compositions for road signaling based on binder, fillers and pigment. Adhesion strength to asphalt concrete pavement and wear resistance of such compositions are mainly determined by the nature of the binder. As a binder, it is known to use natural materials, for example, rosin esters (US Pat. Japan N 14773/73, CPP N 71265, 1978). However, due to their scarcity, the most widely used synthetic resins, such as petroleum products (England, US Pat. N 1324553, Austria, US Pat N 420135). In our country, among petropolymer resins for thermoplastics, styrene-based resin has found application (1). Compositions based on coumaronindene resin are known (ed. St. N 2821707/29, 1981, ed. St. N 2591730/23 05, 1980), based on epoxy resins(France, Pat. N 1408690, 1976, Great Britain, application N 1376373, 1976, etc.). The most widely used abroad are polyesters (Japan, application N 50-6850, 1975, USA, Pat. N 3928266, 1976). In our country, the formulation of the domestic thermoplastic PL 5142 (2) has been developed, but this material has insufficient adhesive strength and wear resistance. The presence in thermoplastic according to ed.St. N 468508 polyester resin with a melting point of 20 50 o C leads to summer period time to soften the intended road markings, which significantly reduces the terms of its operation. Thermoplastic according to ed. N 826733, containing a mixture of polyester resins, has high physical and mechanical properties in the temperature range from -40 o C to 60 o C, but has low flow, wear resistance, high hardening time (20 50 min) and a number of other disadvantages. Known thermoplastic composition for road marking PTS-1 (3), considered as a prototype, which contains as a binder polyester resin PS-01 (TU 84 7509103.251-89). This composition has improved flow characteristics, whiteness, a short hardening time, but insufficient wear resistance and adhesive strength to the coating. The aim of the invention is to increase the wear resistance and adhesive strength of the road marking material. This goal is achieved by the fact that in the thermoplastic composition PTS-1 according to TU 84750910.3.251-89 for marking highways and airfields, including titanium dioxide, quartz or building sand, aerosil or transformer oil and polyester resin PS-01 with an acid number of 15-70 mg KOH/g, a melting point of 60-90 o C, obtained on the basis of phthalic anhydride, ethylene glycol, glycerin in the presence phosphoric acid catalyst, additionally introduced waste thermoplastic polyurenate in the form of crumbs and small trimmings (TU 3-7509103,294-90) in an amount of from 0.1 to 5.0 wt.h. with the following ratio of components, wt.h. polyester resin PS-01 from 19.0 to 33.4
Titanium dioxide 4.0 to 10.0
Sand quartz or construction from 60.0 to 70.0
Aerosil or transformer oil from 0.5 to 2.5
Thermoplastic polyurethane waste according to TU 3-7509103.294-90 is a shredded substandard product or trimming with a particle size of up to 20 x 20 x 5 mm, a melting point of 60-70 o C, a decomposition temperature of at least 250 o C and is intended for use in the synthesis of thermoplastic polyester pitches for various purposes. Thermoplastic polyurethane waste is introduced into the molten PS-01 resin after its synthesis. The manufacturing technology of the road marking composition consists in mechanical mixing of pre-crushed components at room temperature until a homogeneous loose mass is obtained. The composition heated to a temperature of 180 200 o C is applied to the road surface by marking machines. In table. 1 shows examples of samples of the proposed marking composition containing waste thermoplastic polyurethane. The presented results indicate that the introduction of waste thermoplastic polyurethane into the marking material in an amount of from 0.1 to 5.0 wt.h. leads to a significant (1.5 to 3.0 times) increase in wear resistance and increase in 1.2 to 2.0 times the adhesive strength of the proposed material in comparison with the known.
CLAIM
Thermoplastic compound for marking roads and airfields, including titanium dioxide, quartz or building sand, aerosil or transformer oil and polyester resin PS-01 with an acid number of 15-70 mg KOH / g, a melting point of 60-90 o C, obtained on the basis of phthalic anhydride, ethylene glycol , glycerin in the presence of a phosphoric acid catalyst, characterized in that it additionally contains waste thermoplastic polyurethane in the form of chips or small trimmings in the following ratio, wt.h. The specified polyester resin grade PS-01 19.0 33.4Thermoplastic polyurethane waste 0.1 5.0
Titanium dioxide 4 10
Sand quartz or construction 60 70
Aerosil or transformer oil 0.5 2.5n
62. Thermoplastics for road marking, basic properties.
Thermoplastic - marking material, powder mixture when cold.
After heating with stirring to t 140-210 C, the material passes into a fluid state and is applied to the coating, and after cooling it passes into a solid state.
Pigment
Binders
Filler: fine fraction (chalk, calcite)
Large fraction (light quartz sand, glass balls)
Size max 1-1.3 mm
The material is applied in a thick layer up to 6 mm, durability.
Environmental Safety
Work takes less time
Thermal dependence of physical, chemical properties at high t
Sophisticated equipment
63. Cold plastics for road marking, basic properties.
Cold plastics are a two-component marking material, the main connecting element is thermosetting polymer resins.
Current Composition:
pigment, filler (groats, fine fractions), binders (polymer resin)
powder hardener 1-2%.
Can be applied in thick layers
Insignificant temperature dependence of physical, mechanical properties
Environmental Safety
Technical complexity of the material after hardener application 10-15 min
High price
64. Polymeric tapes for road marking, basic properties.
Durability up to 3 years
High reflectivity at night during the entire period of validity.
Environmental Safety
High price
Manual application technology
65 Glass microballoons for road marking, purpose, main properties.
reflective materials.
The purpose is to improve the visibility of markings at night.
Material - glass microballoons (glass beads). They are particles from clear glass, the shape is close to spherical, the sizes are from 50 to 300 microns.
1.Glass microballoon
2. Road surface
3. Marking layer on the roadway
4. Possible directions of reflection of light rays
Properties:
A certain part of the beam of rays returns to the light source
It is optimal to deepen the glass bead into the layer of marking material by ½ of the diameter.
66 Ensuring night visibility of markings in wet conditions and during rain.
If there is a layer of water on the road surface (on the markings) at night, the beams of the headlights of the car reflect from the surface and go further in the direction of the car.
The visibility of the markup is drastically deteriorating
To improve the visibility of markings in the dark, in the presence of moisture on the coating, apply profile or structural markup. 
These markings have ledges covered with glass beads that rise above the layer of water on the road surface.
The markup profile has a different shape. Periodically acts with different frequency and height, periodically forming figures (rhombuses) of various sizes (drip form)
67 Technologies for applying road markings with paint.
1) Pneumatic technology (see picture) 
2) hydraulic technology (airless)
Technology:
The hydraulic method can apply a thicker layer of material at the same travel speed
When using the hydraulic method, more viscous paints can be used.
Hydraulic application equipment is more complex (than pneumatic) and more expensive
Road marking plastics can be either cold or hot. The undeniable advantage of road marking plastics is that, once dry, the markings can withstand much more traffic and weather/other conditions than paints. Thus, the most important plus of plastics for roads is durability.
Hot plastic for road marking should be heated to certain temperature and sprayed onto asphalt or extruded as a tape. Applying hot plastic to the road requires special equipment that "melts" the material in a large hopper. Applied with a thickness of 1 mm, thermoplastic marking retains its properties for about three years. Markings up to 3 mm are also used, but the drying process takes longer, however, the markings can retain their properties for 5 years.
Why plastics for road marking from STiM?
When you need good markings - thermoplastic from "STiM" will become great solution! Road thermoplastic of our production is kept on the canvas for a long time, clearly visible under various weather conditions, does not affect the adhesion of tires to the surface, safe for the environment.
The group of companies "STiM" offers to buy plastics for road marking - cold, hot, sprays and others. We deliver directly to customers without intermediaries and give guarantees for each product. Leave your request or request a call and we will contact you within 15 minutes.
Delivery is carried out by our own logistics center. Our road marking plastics have already established themselves in the markets of Europe and Asia as being of the highest quality and are regularly used in road marking.
Modern quality material, widely used for road markings, which can withstand high traffic and ensure the durability of the markings.
The thermoplastic is supplied as a free-flowing mix white color(and at the request of the customer yellow or orange flowers) from polymer binders, fillers and pigments. The product is made on the basis of imported resins, which does not contain any solvents and volatile materials, which leads to minimal environmental impact on environment. The resulting free-flowing mixture forms a solid opaque coating after heating, kneading and cooling the thermoplastic.
The binders in this product are mainly polyester and hydrocarbon
resins.
Polyester resins are the most toxic and have a strong odor at operating temperatures. In addition, the thermoplastics on these resins are incompatible with a large number polymer materials, used as additives, also has high moisture absorption and low wear resistance, so modern thermoplastic manufacturers use hydrocarbon resins.
The pigment provides the necessary whiteness of the markup. The main pigment used here is titanium dioxide.
As with any material, the transport and storage conditions specified by the manufacturer must be observed. They must be clearly defined in the technical specifications and the passport. Two signs must be indicated on the labels: “keep away from moisture” and “keep away from sun rays».
The ingress of water into the thermoplastic leads to the fact that in the process of heating to 180–210 ° C and the melting of the thermoplastic, the water that has entered it begins to boil, forming bubbles. This phenomenon leads to the fluidity of the thermoplastic, and, accordingly, the quality of the applied marking strip is violated.
With prolonged exposure to sunlight, the resin softens, as a result of which the thermoplastic turns into a monolithic block. This creates difficulties when loading it into the boiler, but does not affect the quality of the thermoplastic.
The storage time must be specified in the technical specifications, this period is usually 12–24 months. But at proper storage in dry unheated premises perhaps more long-term storage thermoplastic without loss of operational properties.
Thermoplastic is available in two types: with and without reflective balls.
Glass beads can either be included already in the mixture or applied separately to the surface of the thermal paste before it cures.
Thermoplastic is applied using special marking equipment or manually using special machines.
The price of thermoplastic for road marking without micro glass beads from 75 rubles / kg
The price of thermoplastic for road marking with micro glass beads from 80 rubles / kg