CN112574672B

CN112574672B - Water-based asphalt bottom paint for outdoor floor and processing technology thereof

Info

Publication number: CN112574672B
Application number: CN202011335097.3A
Authority: CN
Inventors: 林海
Original assignee: Zhejiang Xinmiao Chemical Co ltd
Current assignee: Anhui Xinmiao New Material Technology Co.,Ltd.
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-12-03
Anticipated expiration: 2040-11-25
Also published as: CN112574672A

Abstract

The application relates to the technical field of asphalt coating production, in particular to an outdoor floor water-based asphalt bottom paint and a processing technology thereof. The outdoor floor water-based asphalt bottom paint is prepared from the following raw materials in parts by weight: modified asphalt, filler, film-forming resin emulsion, emulsifier, liquid-phase rare earth stabilizer, film-forming stabilizer, defoaming agent, initiator, UV agent and deionized water. The water-based asphalt bottom paint has the advantages of better corrosion resistance, low temperature resistance and aging resistance, and can improve the impact strength of outdoor floors. The processing technology of the invention is as follows: the process comprises the steps of weighing modified asphalt, putting the modified asphalt into a batching device, weighing the film-forming resin emulsion and deionized water, then sequentially putting the weighed filler, the liquid-phase rare earth stabilizer, the UV agent, the emulsifier, the film-forming stabilizer, the defoaming agent and the initiator into the batching device, stirring, vacuumizing, naturally cooling to room temperature, finally screening and filling.

Description

Water-based asphalt bottom paint for outdoor floor and processing technology thereof

Technical Field

The application relates to the technical field of asphalt coating production, in particular to an outdoor floor water-based asphalt bottom paint and a processing technology thereof.

Background

Outdoor floors must be able to withstand outdoor weather and strong temperature variations. Therefore, the floor must have the characteristics of strong stability, strong corrosion resistance, strong pressure resistance and the like, and the outdoor floor surface can be coated with the anticorrosive primer or the anticorrosive paint. At present, most of anticorrosive coatings at home and abroad are mainly solvent-based coatings, the solvent-based anticorrosive coatings pose great threats to the environment and the health of human beings, and along with the enhancement of environmental awareness of people, the research on odorless low-pollution water-based anticorrosive coatings is greatly emphasized. Asphalt is a common anticorrosive material, and has low cost and wide raw material sources. The petroleum asphalt has good cohesiveness, aging resistance and corrosion resistance, is used as an anticorrosive material for a long time, and can improve the corrosion resistance and aging resistance of the floor when being used as an anticorrosive coating of an outdoor floor.

The publication number CN107903825A discloses a multifunctional paint, which comprises paint components, a mixture of chlorinated paraffin and antimony oxide, zeolite powder and petroleum, wherein the paint components comprise the following components in parts by weight: paint components 40-60 parts, a mixture of chlorinated paraffin and antimony oxide 25-35 parts, zeolite powder 15-20 parts, and water-soluble resin 1-3 parts. In the mixture of the chlorinated paraffin and the antimony oxide, the mass parts of the chlorinated paraffin and the antimony oxide are as follows: 8-15 parts of chlorinated paraffin and 5-12 parts of antimony oxide.

The above prior art solutions have the following drawbacks: although the prior art can achieve a certain anticorrosion effect, cations such as sodium ions, calcium ions and potassium ions in zeolite in the filler are not tightly combined with the crystal lattice, and the environment of the outdoor floor brings other cations, and the brought cations are exchanged with the cations such as sodium ions, calcium ions and potassium ions in the zeolite, so that the multifunctional paint is poor in corrosion resistance, and further the overall application effect of the multifunctional paint is poor.

Disclosure of Invention

In order to solve the problems that the corrosion resistance is poor and the whole application effect is poor in the prior art, the application provides the outdoor floor water-based asphalt bottom paint and the processing technology thereof.

In a first aspect, the present application provides an outdoor floor water-based asphalt primer, which is implemented by the following technical scheme: the water-based asphalt bottom paint for outdoor floors is prepared from the following raw materials in parts by weight: 100 parts of modified asphalt, 5-20 parts of filler, 25-60 parts of film-forming resin emulsion, 0.5-2.0 parts of emulsifier, 1.0-4.0 parts of liquid-phase rare earth stabilizer, 0.5-3.0 parts of film-forming stabilizer, 0.5-2.0 parts of defoaming agent, 0.1-0.8 parts of initiator, 0.2-1.5 parts of UV agent and 35-60 parts of deionized water.

The film-forming resin emulsion and the modified asphalt are compounded to improve the corrosion resistance, the weather resistance and the chemical temperature property; the filler can improve the tensile strength, bending strength and wave-absorbing and shock-absorbing properties, and improve the mechanical strength and shock-absorbing properties of the outdoor floor; the liquid-phase rare earth stabilizer plays good thermal stability and flame retardant effects, the flame retardant property of the outdoor floor is guaranteed, the UV agent is developed by aiming at the outdoor floor to be contacted with an external light source for a long time, ultraviolet rays can be effectively absorbed, the damage of the ultraviolet rays to high molecular chains in the film-forming resin emulsion is effectively reduced, and the whole protection life is prolonged.

Preferably, the modified asphalt is prepared from the following raw materials in parts by weight: 40-50 parts of No. 70 asphalt, 5-20 parts of No. 90 asphalt, 5-10 parts of No. 110 asphalt, 40-60 parts of deionized water, 0.8-2.5 parts of sodium dodecyl benzene sulfonate, 0.5-2.0 parts of defoaming agent, 0.5-2.0 parts of hydroxyethyl cellulose, 0.5-1.0 part of caustic alkali and 1.0-2.5 parts of sodium abietate.

The modified emulsified asphalt with high low temperature resistance and high temperature resistance is obtained through the compounding practicality of 70# asphalt, 90# asphalt and 110# asphalt, so that the product is guaranteed to have good low temperature resistance and good high temperature resistance, the application range of the product is widened, and the market prospect is wider.

Preferably, the preparation method of the modified asphalt comprises the following steps:

weighing sodium dodecyl benzene sulfonate, a defoaming agent, hydroxyethyl cellulose, caustic alkali, sodium abietate and deionized water according to a ratio, heating to 40 ℃, mixing for 10 minutes at a stirring speed of 400 revolutions per minute, and heating to 60 ℃ for storage to obtain a standby material A;

step two, weighing 70# asphalt, 90# asphalt and 110# asphalt in proportion, firstly putting 70# asphalt into a reaction kettle, heating to 80 ℃, keeping stirring at a stirring speed of 200 revolutions per minute for 15 minutes, then putting 90# asphalt into the reaction kettle, controlling the temperature to be 90-100 ℃, adjusting the stirring speed to be 250-320 revolutions per minute, keeping stirring for 15 minutes, then putting 110# asphalt into the reaction kettle, controlling the temperature to be 105-120 ℃, adjusting the stirring speed to be 350 revolutions per minute, and stirring for 20 minutes to obtain a spare material B;

and step three, transferring the standby material A and the standby material B into a colloid mill, and mixing and shearing at a high speed to obtain the modified asphalt.

By adopting the technical scheme, the temperature of the asphalt is adjusted during preparation according to the difference of physical properties of different grades of asphalt, so that the asphalt is in a better flowing state, the different grades of asphalt can be fully mixed, and the high-quality modified emulsified asphalt can be quickly and effectively prepared.

Preferably, the film-forming resin emulsion comprises neoprene latex, vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and acrylic emulsion, and the mass ratio of the neoprene latex, the vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and the acrylic emulsion is (0.5-2.0):1: 1.

By adopting the technical scheme, the chloroprene rubber modified asphalt has better weather resistance, corrosion resistance, extensibility and cohesiveness, the product has stronger adaptability to outdoor wood boards, does not crack when coated at low temperature, does not flow at high temperature, is quicker and more compact and complete in film forming, and ensures better water resistance; the vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex can strengthen the corrosion resistance, ensure that the latex has excellent corrosion resistance and excellent chemical temperature resistance, and ensure the overall weather resistance; the acrylic emulsion has better waterproof performance, improves the bonding capability of the product, ensures the bonding force of the product and can be better bonded on outdoor floors.

Preferably, the filler comprises superfine calcium carbonate, tetragonal phase zirconia, asphalt-based carbon fiber and zinc oxide whisker, and the weight ratio of the superfine calcium carbonate to the tetragonal phase zirconia to the asphalt-based carbon fiber to the zinc oxide whisker is (5-20): (0.5-3.0): (1.0-3.0): (0.5-2.0).

By adopting the technical scheme, in the action of tetragonal phase zirconia in the system, when the outdoor floor coated with the product is subjected to external force, t-phase zirconia is converted into m-phase zirconia, and energy generated by external stress is absorbed in the process, so that the stress field at the crack tip of the paint layer is relaxed, the crack propagation resistance is enhanced, and a better toughening effect is achieved; the superfine calcium carbonate plays a role in improving tensile strength, bending strength and smoothness of a paint film, and the superfine calcium carbonate with reasonable components promotes crack of the paint film, so that the toughening effect of tetragonal phase zirconia can be conveniently exerted, the product has good impact strength and toughness, and the product can be used for an outdoor floor to enhance the overall mechanical property; the asphalt-based carbon fiber matrix has good compatibility with asphalt, can be well dispersed in a system, can enhance the specific strength, impact strength and high temperature resistance of an outdoor floor, ensures the dimensional stability of a paint film due to low expansion rate, and can ensure the service life of the product; the zinc oxide whisker can absorb light with the wavelength of 200-400nm, can improve the ageing resistance of the product, has the regularity of a three-dimensional space, can enhance the isotropy of the product, improves the toughness and the strength of the product, has high density and can play a role in absorbing vibration.

Preferably, the defoaming agent is one of tributyl phosphate and Foamex-825 defoaming agent; the emulsifier is one of sodium dodecyl benzene sulfonate and polyoxyethylene nonyl phenyl ether; the UV agent is one or more of UV1130, UV326 and UV-T, UV 622.

By adopting the technical scheme, the defoaming agent plays a defoaming role; the emulsifier plays a role in emulsification and dispersion; the UV agent has good ultraviolet absorption effect, and the anti-aging performance of the product is improved.

Preferably, the initiator is one or more of azodiisobutyl amidine hydrochloride (AIBA), azodiisobutyl imidazoline hydrochloride (AIBI), and azoisobutyryl cyano formamide (V30) as an initiator; the film forming stabilizer is one or the combination of more of hydroxyethyl cellulose, alcohol ester twelve, propylene glycol butyl ether, dipropylene glycol butyl ether and dipropylene glycol phenyl ether.

By adopting the technical scheme, the water-based initiator and the amphoteric initiator are adopted, so that a good effect of initiating chain link formation is achieved, and the quality of a product can be ensured; the film forming stabilizer is used for ensuring that a relatively flat paint film can be formed.

The second application purpose of the application is realized by the following technical scheme:

a processing technology of an outdoor floor water-based asphalt bottom paint comprises the following steps:

step one, weighing modified asphalt according to a ratio, putting the modified asphalt into a batching device, heating to the temperature of 40-60 ℃, stirring at the rotating speed of 350 revolutions per minute, and stirring for 5-10 min;

weighing the film-forming resin emulsion and deionized water according to the proportion, putting the film-forming resin emulsion and the deionized water into a batching device, continuously introducing protective gas, adjusting the rotating speed to be 500-800 r/min, and stirring for 20-30 min;

sequentially weighing the filler, the liquid-phase rare earth stabilizer, the UV agent, the emulsifier, the film forming stabilizer and the defoaming agent according to the proportion, adding the materials into a batching device according to the weighing sequence, controlling the rotating speed to be 600-900 revolutions per minute, and stirring for 30-60 min;

weighing the initiator according to the ratio, controlling the temperature at 40-50 ℃, adjusting the rotating speed to 600 revolutions per minute, and stirring for 30-90 min;

step five, maintaining stirring, vacuumizing until the internal air pressure of the batching device is 0.1 kPa-5.0 kPa, and continuously vacuumizing for 20 min; and sixthly, continuously introducing protective gas, cooling to room temperature, screening by using a 50-300-mesh screen, and filling to obtain a final product.

By adopting the technical scheme, the technical parameters of the process are obtained through a plurality of batches of production tests, the batch production can be realized, the obtained product has high quality, and the batch quality is stable

Preferably, in the sixth step, protective gas is continuously introduced to restore the internal air pressure of the batching device to normal pressure, the rotating speed is controlled to be 200 revolutions per minute, ultrasonic treatment is intermittently performed, ultrasonic treatment is continuously performed for 5 seconds every 3 seconds, the mixture is cooled to room temperature, screening is performed by screening with a 50-300-mesh screen, and the final product is obtained by filling.

Through adopting above-mentioned technical scheme, the stirring is assisted simultaneously with the ultrasonic wave can comparatively effectual promotion filler evenly distributed, and the intensive mixing of three kinds of sizing materials and different grades of pitch, and then guarantees the quality of this product.

Preferably, the batching device comprises a batching tank body, and the top of the batching tank body is communicated with an asphalt feeding pipe, a batching feeding pipe and an emptying pipe; the side wall of the upper part of the batching tank body is communicated with a vacuum pump; an anchor stirrer is arranged in the batching tank body; one end of the anchor stirrer extending out of the top of the batching tank body is fixedly connected with a driving gear in the circumferential direction; the top of the batching tank body is fixedly connected with a driving motor; an output shaft of the driving motor is circumferentially and fixedly connected with a driving gear; the driving gear is meshed with the driving gear; one end of the anchor stirrer extending out of the top of the batching tank body is coaxially and rotatably connected with a nitrogen generator; the nitrogen generator is communicated with an air pump communicated with the anchor stirrer; a main air guide channel communicated with the air suction pump is integrally formed on a stirring shaft of the anchor stirrer; a plurality of air outlet holes communicated with the main air channel are formed in the circumferential direction of the stirring shaft of the anchor stirrer; the distance between the adjacent air outlet holes is equal; the side wall of the batching tank body is integrally formed with a jacket layer, and the lower part of the side wall of the batching tank body is communicated with a heating medium inlet pipe communicated with the jacket layer; the upper part of the side wall of the batching tank body is communicated with a heat exchange medium outlet pipe communicated with the jacket layer; the center of the bottom of the batching tank body is communicated with a discharging mechanism; the discharging mechanism comprises a discharging pipe, a screening pipe and a delivery pipe, wherein one end of the discharging pipe is fixedly communicated with the center of the bottom of the batching tank body, and the other end of the discharging pipe is detachably connected with the screening pipe; one end of the screening pipe is detachably connected to the discharge pipe, and the other end of the screening pipe is detachably connected to the delivery pipe; a screening net is arranged in the screening pipe; an ultrasonic generator is arranged at the bottom of the batching tank body.

The batching device independently designed by the company can obtain the outdoor floor water-based asphalt bottom paint with stable batch quality and better quality according to corresponding technical parameters.

In summary, the present application has the following advantages:

1. the outdoor floor has the advantages of good corrosion resistance, low temperature resistance and aging resistance, and the effect of improving the impact strength of the outdoor floor can be improved.

2. The technical parameters of the process are obtained through a plurality of batches of production tests, the batch production can be realized, the quality of the obtained product is high, and the batch quality is stable.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a batching device required in the processing technology of the present application.

FIG. 2 is a schematic view of the anchor agitator in the dispensing unit of the present application.

In the figure, 1, a batching device; 10. a support; 2. a material mixing tank body; 20. a jacket layer; 201. a heating medium inlet pipe; 202. a heat exchange medium outlet pipe; 21. an asphalt feed pipe; 22. a material feeding pipe for ingredients; 23. emptying the pipe; 24. a vacuum pump; 3. an anchor agitator; 30. a main gas guiding channel; 300. an air outlet; 301. an air outlet pipe; 302. a one-way valve; 31. driving the gear; 4. a drive motor; 41. a driving gear; 5. a nitrogen generator; 50. an air pump; 500. a gas delivery pipe; 6. a discharging mechanism; 61. a discharge pipe; 62. screening the tubes; 621. screening the net; 63. a delivery pipe; 7. an ultrasonic generator.

Detailed Description

The present application will be described in further detail with reference to fig. 1 and the examples.

Raw materials

Device

Referring to fig. 1, a batching device that needs to be used in processing technology, including support 10 and the batching jar body 2 that is fixed in support 10, the fixed intercommunication in batching jar body 2 top has pitch inlet pipe 21, the batching inlet pipe 22 that is used for transmitting the material except that the pitch material, is used for balancing inside and outside atmospheric pressure's evacuation pipe 23 that are used for transmitting the pitch material. The inner wall of the asphalt feeding pipe 21 is sprayed with the polytetrafluoroethylene coating, so that asphalt can be prevented from being adhered to the pipe wall, the batching loss is reduced, the batching accuracy is improved, and the production cost is reduced.

Referring to fig. 1, in order to facilitate the screening and filling of the materials, the bottom center of the batching tank body 2 is communicated with a discharging mechanism 6. Discharge mechanism 6 includes discharging pipe 61, and discharging pipe 61 one end is fixed to be communicated in the fixed intercommunication of batching jar body 2 bottom center and the other end has screening pipe 62 through the fixed intercommunication of flange. A 250-mesh sieving net 621 is installed in the sieving pipe 62. One end of the screening pipe 62 is fixedly communicated with the discharge pipe 61 through a flange, and the other end of the screening pipe is fixedly communicated with a delivery pipe 63 for delivering the screened material through a flange.

Referring to fig. 1, the side wall of the upper part of the batching tank body 2 is fixedly communicated with an exhaust pipe, one end of the exhaust pipe is fixedly communicated with the side wall of the upper part of the batching tank body 2, and the other end of the exhaust pipe is fixedly communicated with a vacuum pump 24 arranged on the ground. An anchor stirrer 3 is rotationally connected in the batching tank body 2. The top of the batching tank body 2 is fixedly connected with a driving motor 4 for driving the anchor stirrer 3 to rotate around the anchor stirrer 3 in the axial direction. A driving gear 41 is fixedly connected to the output shaft of the driving motor 4 in the circumferential direction. One end of the anchor stirrer 3 extending out of the top of the batching tank body 2 is circumferentially and fixedly connected with a driving gear 31. The driving gear 41 is engaged with the driving gear 31, so that the driving motor 4 drives the anchor stirrer 3 to rotate around the axial direction of the anchor stirrer.

Referring to fig. 1, in order to control the temperature of the material, a jacket layer 20 is integrally formed on the side wall of the batching tank 2. The lower part of the side wall of the batching tank body 2 is communicated with a heating medium inlet pipe 201 communicated with the jacket layer 20. The upper part of the side wall of the batching tank body 2 is communicated with a heat exchange medium outlet pipe 202 communicated with the jacket layer 20. In order to improve the mixing uniformity, the bottom of the batching tank body 2 is provided with an ultrasonic generator 7.

Referring to fig. 1 and 2, in order to enhance the stirring effect, the stirring shaft of the anchor stirrer 3 is integrally formed with a main air passage 30 communicating with a suction pump 50; a plurality of air outlets 300 communicated with the main air channel 30 are formed in the circumferential direction of the stirring shaft of the anchor stirrer 3, and the distance between every two adjacent air outlets 300 is equal. An air outlet pipe 301 is hermetically embedded in the air outlet hole 300, and a one-way valve 302 is fixedly communicated on the air outlet pipe 301. The end of the anchor stirrer 3 extending out of the top of the batching tank body 2 is coaxially and rotatably connected with an air pump 50 fixedly connected to the side wall of the batching tank body 2, and the air pump 50 is a pulse pump. The air pump 50 is communicated with a nitrogen generator 5 fixedly connected with the side wall of the batching tank body 2. The one end that air pump 50 and anchor agitator 3 stretched out the batching jar body 2 top passes through gas-supply pipe 500 intercommunication, and gas-supply pipe 500 lateral wall fixed connection is in driving motor 4 shell.

Preparation example

Preparation example 1

The preparation method of the modified asphalt A comprises the following steps:

step one, weighing 1.3 parts of sodium dodecyl benzene sulfonate, 0.8 part of Foamex-825 defoaming agent, 1.2 parts of hydroxyethyl cellulose, 0.6 part of caustic alkali, 1.5 parts of sodium abietate and 42 parts of deionized water according to the proportion, putting the materials into a first reaction kettle (an electric heating reaction kettle of Shenglong chemical machinery, Inc. in Lyzhou, market), heating to 40 ℃, mixing for 10 minutes at the stirring speed of 400 revolutions per minute, and heating to 60 ℃ for storage to obtain a spare material A;

step two, weighing 50 parts of 70# asphalt, 12.5 parts of 90# asphalt and 5 parts of 110# asphalt according to a proportion, firstly, feeding the 70# asphalt into a second reaction kettle (an electric heating reaction kettle of Shenglong chemical machinery, Inc. in Lyzhou city), heating to 80 ℃, keeping stirring for 15 minutes at a stirring speed of 200 revolutions per minute, then feeding the 90# asphalt into the second reaction kettle, controlling the temperature to be 92 ℃, adjusting the stirring speed to be 260 revolutions per minute, keeping stirring for 15 minutes, then feeding the 110# asphalt into the second reaction kettle, controlling the temperature to be 108 ℃, adjusting the stirring speed to be 350 revolutions per minute, and stirring for 20 minutes to obtain a spare material B;

and step three, transferring the standby material A and the standby material B into a colloid mill (80 type colloid mill of JMS-80AQ of the corridor City friend mechanical Co., Ltd.), and mixing and shearing at high speed to obtain the modified asphalt.

Preparation example 2

Preparation 2 differs from preparation 1 in that: the modified asphalt B is prepared from the following raw materials in parts by weight: 47.6 parts of No. 70 asphalt, 8.2 parts of No. 90 asphalt, 2.2 parts of No. 110 asphalt, 1.2 parts of sodium dodecyl benzene sulfonate, 0.8 part of Foamex-825 defoaming agent, 1.0 part of hydroxyethyl cellulose, 0.4 part of caustic alkali, 1.4 parts of sodium abietate and 40 parts of deionized water.

Preparation example 3

Compounding of the filler: superfine calcium carbonate, tetragonal zirconia, pitch-based carbon fiber and zinc oxide whisker are weighed according to the mass ratio of 8.8:1.2:2.3:0.8, are put into a dispersion machine (a double-shaft stirring dispersion machine, an electric heating reaction kettle of Shenglong chemical machinery Co., Ltd. in Ri, China) and are stirred for 2 minutes at the stirring speed of 200 revolutions per minute, and the filler A is obtained.

Preparation example 4

Compounding of the filler: the ultrafine calcium carbonate, the tetragonal zirconia, the pitch-based carbon fiber and the zinc oxide whisker are weighed according to the mass ratio of 7.5:2.0:1.5:1.0, and are put into a dispersion machine (a double-shaft stirring dispersion machine, an electric heating reaction kettle of Shenglong chemical machinery Co., Ltd., Yuizhou) and stirred for 2 minutes at the stirring speed of 200 revolutions per minute to obtain the filler B.

Preparation example 5

Compounding film-forming resin emulsion: the neoprene latex, the vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and the acrylic emulsion are weighed according to the mass ratio of 0.8:1:1, the weighed neoprene latex, the vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and the acrylic emulsion are put into a dispersion machine (a double-shaft stirring dispersion machine, an electric heating reaction kettle of Shenglong chemical machinery limited company in Rizhou city) and stirred for 5 minutes at the stirring speed of 500 revolutions per minute and the temperature of 25 ℃, and the film-forming resin emulsion A is obtained.

Preparation example 6

Compounding film-forming resin emulsion: the neoprene latex, the vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and the acrylic emulsion are weighed according to the mass ratio of 1:1:1, the weighed neoprene latex, the vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and the acrylic emulsion are put into a dispersion machine (a double-shaft stirring dispersion machine, an electric heating reaction kettle of Shenglong chemical machinery Co., Ltd. of Rio, China) and stirred for 5 minutes at the stirring speed of 500 revolutions per minute and the temperature of 25 ℃, and the film-forming resin emulsion B is obtained.

Preparation example 7

Compounding film-forming resin emulsion: the neoprene latex, the vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and the acrylic emulsion are weighed according to the mass ratio of 1.2:1:1, the weighed neoprene latex, the vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and the acrylic emulsion are put into a dispersion machine (a double-shaft stirring dispersion machine, an electric heating reaction kettle of Shenglong chemical machinery Co., Ltd. of Rizhou city), and the stirring is carried out for 5 minutes at the stirring speed of 500 revolutions per minute and the temperature of 25 ℃, so as to obtain the film-forming resin emulsion C.

Preparation example 8

Compounding UV agents: UV1130, UV326 and UV-T were weighed in a mass ratio of 0.5:0.2:0.6, put into a dispersion machine (a double-shaft stirring dispersion machine, an electric heating reaction kettle of Shenglong chemical machinery Co., Ltd., L.C.) and stirred at a stirring rotation speed of 400 rpm for 5 minutes.

Examples

Example 1

The water-based asphalt bottom paint for the outdoor floor is prepared from the following raw materials in parts by weight: 100 parts of modified asphalt A, 18 parts of filler A, 48 parts of film-forming resin emulsion A, 1.6 parts of sodium dodecyl benzene sulfonate, 2.4 parts of liquid-phase rare earth stabilizer, 1.2 parts of hydroxyethyl cellulose, 1.4 parts of alcohol ester dodeca, 0.8 part of Foamex-825 defoaming agent, 0.2 part of azoisobutyryl cyano formamide, 1.2 parts of UV agent compounded in preparation example 7 and 48 parts of deionized water.

step one, weighing modified asphalt A according to a ratio, putting the modified asphalt A into a batching tank body 2 through an asphalt feeding pipe 21, introducing hot water, heating to the temperature of 46 ℃, regulating and controlling a driving motor 4, and stirring for 10min at the stirring speed of 350 r/min;

step two, weighing the film-forming resin emulsion and deionized water according to the proportion, putting the film-forming resin emulsion and the deionized water into the batching tank body 2 through the batching feeding pipe 22, starting the air pump 50 and the nitrogen generator 5, continuously introducing nitrogen, regulating and controlling the driving motor 4, adjusting the rotating speed to 620 revolutions per minute, and stirring for 25 min;

step three, sequentially weighing the filler, the liquid-phase rare earth stabilizer, the UV agent, the emulsifier, the film forming stabilizer and the defoaming agent according to the proportion, putting the materials into the batching tank body 2 through the batching feeding pipe 22 according to the weighing sequence, regulating and controlling the driving motor 4, controlling the rotating speed to be 800 revolutions per minute, and stirring for 45 min;

weighing an initiator according to a ratio, putting the initiator into the batching tank body 2 through the batching feeding pipe 22, controlling the temperature at 50 ℃, adjusting the rotating speed to 600 revolutions per minute, and stirring for 60 min;

step five, maintaining the rotating speed of 600 revolutions per minute of stirring, closing the air pump 50, the nitrogen generator 5 and the evacuation pipe 23, starting the vacuum pump 24, vacuumizing until the internal air pressure of the batching device 1 is 4.0kpa, and continuously pumping for 20 min;

and step six, turning off the vacuum pump 24, turning on the air pump 50 and the nitrogen generator 5, continuously introducing protective gas to restore the internal air pressure of the batching tank body 2 to normal pressure, regulating and controlling the driving motor 4, controlling the rotating speed to be 200 revolutions per minute, turning on the ultrasonic generator 7, intermittently performing ultrasonic treatment, performing ultrasonic treatment for 5 seconds every 3 seconds, cooling to room temperature, then screening by using a discharging mechanism 6 through 250-mesh screening, and filling 25kg of the mixture into a barrel to obtain a final product.

Example 2

Example 2 differs from example 1 in that: the film-forming resin emulsion A is replaced by film-forming resin emulsion B.

Example 3

Example 3 differs from example 1 in that: the film-forming resin emulsion A was replaced with film-forming resin emulsion C.

Example 4

Example 4 differs from example 1 in that: filler a is replaced with filler B.

Example 5

Example 5 differs from example 2 in that: filler a is replaced with filler B.

Example 6

Example 6 differs from example 3 in that: filler a is replaced with filler B.

Example 7

Example 7 differs from example 1 in that: the modified asphalt A is replaced by modified asphalt B.

Example 8

Example 8 differs from example 7 in that: the film-forming resin emulsion A is replaced by film-forming resin emulsion B.

Example 9

Example 9 differs from example 7 in that: the film-forming resin emulsion A was replaced with film-forming resin emulsion C.

Example 10

Example 10 differs from example 7 in that: filler a is replaced with filler B.

Example 11

Example 11 differs from example 8 in that: filler a is replaced with filler B.

Example 12

Example 12 differs from example 9 in that: filler a is replaced with filler B.

Comparative example

Comparative example 1

Comparative example 1 differs from example 1 in that: film-forming resin emulsion a was replaced with neoprene latex.

Comparative example 2

Comparative example 2 differs from example 1 in that: the film-forming resin emulsion A is replaced by vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex.

Comparative example 3

Comparative example 3 differs from example 1 in that: the film-forming resin emulsion A was replaced with an acrylic emulsion.

Comparative example 4

Comparative example 4 differs from example 1 in that: the filler A is replaced by superfine calcium carbonate.

Test method

1. Salt spray resistance test: examples 1 to 12 and comparative examples 1 to 4 were tested in accordance with GB/T1771-2007 "determination of neutral salt spray resistance of paints and varnishes".

2. Testing of volatile organic compounds: examples 1 to 12 and comparative examples 1 to 4 were tested according to GB/T239686-2009 "Difference of determination of the Volatile Organic Compound (VOC) content of paints and varnishes".

3. And (3) testing water resistance: examples 1 to 12 and comparative examples 1 to 4 were tested according to ASTM D870-2002 "Water resistance of coating by immersion method".

4. And (3) testing the adhesive force: examples 1-12 and comparative examples 1-4 were tested according to ASTM D3359-2009 adhesion by tape test.

5. Notched impact strength test: test equipment: a simply supported beam impact tester; each set was five test bars, each of 120X 15X 10mm polypropylene (purchased from Guangdong bright Linnan New materials science and technology Co., Ltd.) standard bars. Notched impact strength tests were carried out using test bars without asphalt base paint as a blank, test bars coated with examples 1-12 as test groups 1-12, and test bars coated with comparative examples 1-4 as comparative groups 1-4, and the test data was recorded to prepare a data sheet.

Test data

Table 1 shows the test data of examples 1 to 12 and comparative examples 1 to 4

Data analysis

As can be seen by combining examples 1-12 with comparative examples 1-3 and by combining Table 1, the water resistance of the base paints of examples 1-12 is better than that of comparative examples 1-3 when the water resistance is above 15d, and therefore, the base paints produced by using the formulation in combination with the production process of the present application have better water resistance.

As can be seen by combining examples 1-12 with comparative examples 1-4 and by combining Table 1, the amount of volatile organic compounds in the base paints of examples 1-12 is 5-7g/L, the amount of volatile organic compounds in comparative examples 1-4 is 8-9g/L, and the base paints of examples 1-12 have better environmental protection performance, so that the amount of volatile organic compounds produced by combining the formula with the production process of the present application is lower and the environmental protection performance is better.

As can be seen by combining examples 1-12 and comparative examples 1-4 with Table 1, the adhesion of the bottom paints of examples 1-12 is 4B-5B, and the adhesion of comparative examples 1-4 is 3B-4B, therefore, the bottom paints produced by combining the formula with the production process of the application have better adhesion and are not easy to have the phenomenon of falling off bubbles.

It can be seen by combining examples 1-12 and comparative examples 1-4 and by combining table 1 that the notched impact strength of the polypropylene standard test coated with the bottom paints of examples 1-12 is better than that of the polypropylene standard test coated with the bottom paints of comparative examples 1-4, and the notched impact strength of the polypropylene standard test coated with the bottom paints of examples 1-12 is improved by 27% -43% compared with that of the blank group, so that the impact strength and strength of outdoor floors can be improved, the mechanical properties of the outdoor floors can be improved, and the service life can be prolonged.

As can be seen by combining examples 1-12 with comparative examples 1-4 and by combining Table 1, the salt spray resistance of the base paints of examples 1-12 is better than that of comparative examples 1, 3 and 4, and therefore, the base paints produced by combining the formulation with the production process of the present application have better corrosion resistance; the salt spray resistance of the base paints of examples 1 to 12 was inferior to that of comparative example 2, but the water resistance, adhesion and notched impact strength of comparative example 2 were all inferior to those of examples 1 to 12 in terms of cost and overall performance.

In conclusion, the bottom paint produced by adopting the formula in the embodiment 12 and combining the production process has good water resistance, corrosion resistance and adhesive force, can improve the impact strength of the outdoor floor, and enhances the toughness of the outdoor floor.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The outdoor floor water-based asphalt bottom paint is characterized in that: the feed is prepared from the following raw materials in parts by weight: 100 parts of modified asphalt B, 18 parts of filler A, 48 parts of film-forming resin emulsion C, 1.6 parts of sodium dodecyl benzene sulfonate, 2.4 parts of liquid-phase rare earth stabilizer, 1.2 parts of hydroxyethyl cellulose, 1.4 parts of alcohol ester twelve, 0.8 part of Foamex-825 defoamer, 0.2 part of azoisobutyryl cyano formamide, 0.462 part of UV1130, 0.185 part of UV326, 0.553 parts of UV-T and 48 parts of deionized water; compounding the filler A: weighing the superfine calcium carbonate, the tetragonal phase zirconia, the asphalt-based carbon fiber and the zinc oxide whisker according to the mass ratio of 8.8:1.2:2.3:0.8, putting the superfine calcium carbonate, the tetragonal phase zirconia, the asphalt-based carbon fiber and the zinc oxide whisker into a dispersion machine, and stirring for 2 minutes at the stirring speed of 200 revolutions per minute to obtain a filler A; the modified asphalt B is prepared from the following raw materials in parts by weight: 47.6 parts of No. 70 asphalt, 8.2 parts of No. 90 asphalt, 2.2 parts of No. 110 asphalt, 1.2 parts of sodium dodecyl benzene sulfonate, 0.8 part of Foamex-825 defoaming agent, 1.0 part of hydroxyethyl cellulose, 0.4 part of caustic alkali, 1.4 parts of sodium abietate and 40 parts of deionized water; the preparation method of the modified asphalt B comprises the following steps: step one, weighing 1.2 parts of sodium dodecyl benzene sulfonate, 0.8 part of Foamex-825 defoaming agent, 1.0 part of hydroxyethyl cellulose, 0.4 part of caustic alkali, 1.4 parts of sodium abietate and 40 parts of deionized water according to a ratio, putting into a first reaction kettle, heating to 40 ℃, mixing for 10 minutes at a stirring speed of 400 revolutions per minute, and heating to 60 ℃ for storage to obtain a spare material A; step two, weighing 47.6 parts of 70# asphalt, 8.2 parts of 90# asphalt and 2.2 parts of 110# asphalt according to the proportion, firstly putting the 70# asphalt into a second reaction kettle, heating to 80 ℃, keeping stirring for 15 minutes at the stirring speed of 200 revolutions per minute, then putting the 90# asphalt into the second reaction kettle, controlling the temperature to be 92 ℃, adjusting the stirring speed to be 260 revolutions per minute, keeping stirring for 15 minutes, then putting the 110# asphalt into the second reaction kettle, controlling the temperature to be 108 ℃, adjusting the stirring speed to be 350 revolutions per minute, and stirring for 20 minutes to obtain a spare material B; transferring the standby material A and the standby material B into a colloid mill, and mixing and shearing at a high speed to obtain modified asphalt B; compounding the film-forming resin emulsion C: weighing neoprene latex, vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and acrylic emulsion according to the mass ratio of 1.2:1:1, putting the weighed neoprene latex, vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer latex and acrylic emulsion into a dispersion machine, and stirring for 5 minutes at the stirring speed of 500 revolutions per minute and at the temperature of 25 ℃ to obtain film-forming resin emulsion C.

2. The process of claim 1 for preparing an outdoor floor water-based asphalt primer, which comprises the following steps: the method comprises the following steps:

step one, weighing modified asphalt B according to a ratio, putting the modified asphalt B into a batching device (1), heating to the temperature of 40-60 ℃, stirring at the rotating speed of 350 r/min, and stirring for 5-10 min;

weighing the film-forming resin emulsion C and deionized water according to the proportion, putting the film-forming resin emulsion C and the deionized water into a batching device (1), continuously introducing protective gas, adjusting the rotating speed to be 500-800 r/min, and stirring for 20-30 min;

sequentially weighing the filler A, the liquid-phase rare earth stabilizer, the UV1130, the UV326, the UV-T, the sodium dodecyl benzene sulfonate, the hydroxyethyl cellulose, the alcohol ester twelve and the Foamex-825 defoaming agent according to the proportion, adding the materials into the batching device (1) according to the weighing sequence, controlling the rotating speed to be 600-900 revolutions per minute, and stirring for 30-60 min;

weighing the azo isobutyl cyano formamide according to the proportion, putting the azo isobutyl cyano formamide into the batching device (1), controlling the temperature at 40-50 ℃, adjusting the rotating speed to 600 revolutions per minute, and stirring for 30-90 min;

step five, maintaining stirring, vacuumizing until the internal air pressure of the batching device (1) is 0.1 kPa-5.0 kPa, and continuously vacuumizing for 20 min;

and sixthly, continuously introducing protective gas, cooling to room temperature, screening by using a 50-200-mesh screen, and filling to obtain a final product.

3. The processing technology of the outdoor floor water-based asphalt bottom paint according to claim 2, characterized in that: the batching device (1) comprises a batching tank body (2), and the top of the batching tank body (2) is communicated with an asphalt feeding pipe (21), a batching feeding pipe (22) and an emptying pipe (23); the side wall of the upper part of the batching tank body (2) is communicated with a vacuum pump (24); an anchor type stirrer (3) is arranged in the batching tank body (2); one end of the anchor stirrer (3) extending out of the top of the batching tank body (2) is circumferentially and fixedly connected with a driving gear (31); the top of the batching tank body (2) is fixedly connected with a driving motor (4); an output shaft of the driving motor (4) is circumferentially and fixedly connected with a driving gear (41); the driving gear (41) is meshed with the driving gear (31); one end of the anchor stirrer (3) extending out of the top of the batching tank body (2) is coaxially and rotatably connected with a nitrogen generator (5); the nitrogen generator (5) is communicated with an air pump (50) communicated with the anchor stirrer (3); a main air channel (30) communicated with the air pump (50) is integrally formed on a stirring shaft of the anchor stirrer (3); a plurality of air outlet holes (300) communicated with the main air channel (30) are formed in the circumferential direction of the stirring shaft of the anchor stirrer (3); the distance between the adjacent air outlet holes (300) is equal; the side wall of the batching tank body (2) is integrally provided with a jacket layer (20), and the lower part of the side wall of the batching tank body (2) is communicated with a heating medium inlet pipe (201) communicated with the jacket layer (20); the upper part of the side wall of the batching tank body (2) is communicated with a heat exchange medium outlet pipe (202) communicated with the jacket layer (20); the center of the bottom of the batching tank body (2) is communicated with a discharging mechanism (6); the discharging mechanism (6) comprises a discharging pipe (61), a screening pipe (62) and a delivery pipe (63), one end of the discharging pipe (61) is fixedly communicated with the center of the bottom of the batching tank body (2), and the other end of the discharging pipe is detachably connected with the screening pipe (62); one end of the screening pipe (62) is detachably connected with the discharge pipe (61), and the other end of the screening pipe is detachably connected with the delivery pipe (63); a screening net (621) is arranged in the screening pipe (62); an ultrasonic generator (7) is arranged at the bottom of the batching tank body (2).