阅读说明：本技术 一种桥面专用防水涂料的制备方法 (Preparation method of special waterproof coating for bridge deck ) 是由 马发林 于 2019-11-07 设计创作，主要内容包括：本发明公开了一种桥面专用防水涂料的制备方法,涉及防水涂料技术相关技术领域,包括步骤A：备料：包括以下成分(按质量百分比)：硬单体40～50％、软单体35～45％、阻聚剂1～3％、促进剂2～4％、引发剂2～4％、聚甲基丙烯酸甲酯模塑料6～8％；步骤B：制混合物、步骤C：取引发剂：秤取过氧化环己酮、过氧化甲乙酮、过氧化苯甲酰中的任意一种作为引发剂备用、步骤D：混合：将混合物A1和引发剂置于搅拌装置内搅拌混合均匀,即可制得防水涂料。本发明制得的防水涂料具有优良的力学性能和耐动态碾压性能,满足有砟轨道的特殊使用条件,有效防止漏水点的产生。(The invention discloses a preparation method of a special waterproof coating for bridge floors, which relates to the technical field related to waterproof coatings and comprises the following steps: preparing materials: comprises the following components (by mass percent): 40-50% of hard monomer, 35-45% of soft monomer, 1-3% of polymerization inhibitor, 2-4% of accelerator, 2-4% of initiator and 6-8% of polymethyl methacrylate molding compound; and B: preparing a mixture, and step C: taking an initiator: weighing any one of cyclohexanone peroxide, methyl ethyl ketone peroxide and benzoyl peroxide as an initiator for standby, and performing the following steps: mixing: and (3) placing the mixture A1 and the initiator in a stirring device, and uniformly stirring and mixing to obtain the waterproof coating. The waterproof coating prepared by the invention has excellent mechanical property and dynamic rolling resistance, meets the special use condition of ballast tracks, and effectively prevents water leakage points.)

1. A preparation method of the special waterproof coating for the bridge deck is characterized by comprising the following steps:

step A: preparing materials: comprises the following components (by mass percent): 40-50% of hard monomer, 35-45% of soft monomer, 1-3% of polymerization inhibitor, 2-4% of accelerator, 2-4% of initiator and 6-8% of polymethyl methacrylate molding compound;

and B: preparing a mixture: putting hard monomers and soft monomers into a reaction kettle, uniformly stirring, heating to raise the temperature to 40-50 ℃, putting a polymethyl methacrylate molding compound into the reaction kettle, continuously raising the temperature to 75-85 ℃, reacting for 3-5 hours, cooling to 55-65 ℃, putting a polymerization inhibitor and an accelerant, and uniformly stirring to obtain a mixture A1;

and C: taking an initiator: weighing any one of cyclohexanone peroxide, methyl ethyl ketone peroxide and benzoyl peroxide as an initiator for later use;

step D: mixing: and (3) placing the mixture A1 and the initiator in a stirring device, and uniformly stirring and mixing to obtain the waterproof coating.

2. The preparation method of the special waterproof coating for bridge floors, according to claim 1, is characterized in that:

the waterproof coating comprises the following components (in percentage by mass): 40% of hard monomer, 45% of soft monomer, 1% of polymerization inhibitor, 4% of accelerator, 2% of initiator and 8% of polymethyl methacrylate molding compound.

3. The preparation method of the special waterproof coating for bridge floors, according to claim 1, is characterized in that:

the waterproof coating comprises the following components (in percentage by mass): 45% of hard monomer, 40% of soft monomer, 2% of polymerization inhibitor, 3% of accelerator, 2% of initiator and 7% of polymethyl methacrylate molding compound.

4. The preparation method of the special waterproof coating for bridge floors, according to claim 1, is characterized in that:

the waterproof coating comprises the following components (in percentage by mass): 50% of hard monomer, 35% of soft monomer, 3% of polymerization inhibitor, 2% of accelerator, 4% of initiator and 6% of polymethyl methacrylate molding compound.

5. The preparation method of the special waterproof coating for bridge floors, according to claim 1, is characterized in that:

the hard monomer in the step A is methyl methacrylate, the soft monomer in the step A is isooctyl acrylate, and any one of N, N-dimethylaniline and N, N-dimethyl-p-toluidine serving as accelerators in the step A.

6. The preparation method of the special waterproof coating for bridge floors, according to claim 1, is characterized in that:

the stirring device in the step D comprises a stirring box (1), the right side of the top end of the stirring box (1) is fixedly connected with an upright post (2), the top end of the upright post (2) is fixedly connected with a supporting block (3), the upper surface of the supporting block (3) is fixedly connected with a hydraulic cylinder (4), a piston rod of the hydraulic cylinder (4) is fixedly connected with a connecting block (5), the lower surface of the connecting block (5) is fixedly connected with a motor (6), the output end of the motor (6) is fixedly connected with a stirring shaft (7), the top end of the stirring box (1) is provided with a sliding chute (8), the bottom end of the stirring shaft (7) penetrates through the chute (8) and is positioned in the stirring box (1), two sides of the lower end of the stirring shaft (7) are fixedly connected with three first stirring rods (9), and the upper side and the lower side of the first stirring rod (9) are fixedly connected with a second stirring rod (10).

7. The preparation method of the special waterproof coating for bridge floors as claimed in claim 6, wherein the preparation method comprises the following steps:

it is three first puddler (9) are from last to being equidistant distribution down, first puddler (9) and second puddler (10) all are located the inside of agitator tank (1).

8. The preparation method of the special waterproof coating for bridge floors as claimed in claim 6, wherein the preparation method comprises the following steps:

the left side upper end fixed mounting of agitator tank (1) has inlet pipe (11).

9. The preparation method of the special waterproof coating for bridge floors as claimed in claim 6, wherein the preparation method comprises the following steps:

the right side bottom fixedly connected with discharging pipe (12) of agitator tank (1), fixed mounting has valve (13) on discharging pipe (12).

10. The preparation method of the special waterproof coating for bridge floors as claimed in claim 6, wherein the preparation method comprises the following steps:

supporting blocks (14) are fixedly connected to four corners of the lower surface of the stirring box (1).

Technical Field

The invention relates to the technical field related to waterproof paint technology, in particular to a preparation method of a special waterproof paint for bridge floors.

Background

Bridge floor is waterproof one of the key factor of guaranteeing bridge normal use, and the high polymer modified asphalt waterproofing membrane or the chlorinated polyethylene coiled material that use on the railway have a lot of overlap joints during the construction, and this is the source of bridge floor infiltration, and the wearability of coiled material and durability are poor must increase the protective layer moreover to will increase roof beam height and structure dead weight. Therefore, the waterproof of the high-speed railway bridge is mostly selected to be waterproof by using a waterproof coating.

However, the ballast track is different from a ballastless track, when a train runs on the ballast track, the ballast is rolled and the ballast splashes to cause the breakage of the waterproof layer, because the train has high mass and high pressure on the laid waterproof coating, and the railway ballast is arranged on the ballast track, if the rolling of the ballast causes the breakage of the waterproof coating when the train passes through, a water leakage point can be caused, and the waterproof failure of the whole bridge deck is caused, while the performance of the existing waterproof coating can not meet the use requirement of the ballast track.

Therefore, it is necessary to provide a method for preparing a waterproof coating material specially used for bridge deck to solve the above problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a preparation method of a special waterproof coating for a bridge deck, and solves the problem that the performance of the existing waterproof coating cannot meet the use requirement of a ballast track.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a preparation method of special waterproof paint for bridge deck comprises the following steps:

step A: preparing materials: comprises the following components (by mass percent): 40-50% of hard monomer, 35-45% of soft monomer, 1-3% of polymerization inhibitor, 2-4% of accelerator, 2-4% of initiator and 6-8% of polymethyl methacrylate molding compound;

and B: preparing a mixture: putting hard monomers and soft monomers into a reaction kettle, uniformly stirring, heating to raise the temperature to 40-50 ℃, putting a polymethyl methacrylate molding compound into the reaction kettle, continuously raising the temperature to 75-85 ℃, reacting for 3-5 hours, cooling to 55-65 ℃, putting a polymerization inhibitor and an accelerant, and uniformly stirring to obtain a mixture A1;

and C: taking an initiator: weighing any one of cyclohexanone peroxide, methyl ethyl ketone peroxide and benzoyl peroxide as an initiator for later use;

step D: mixing: and (3) placing the mixture A1 and the initiator in a stirring device, and uniformly stirring and mixing to obtain the waterproof coating.

Optionally, the waterproof coating comprises the following components (in percentage by mass): 40% of hard monomer, 45% of soft monomer, 1% of polymerization inhibitor, 4% of accelerator, 2% of initiator and 8% of polymethyl methacrylate molding compound.

Optionally, the waterproof coating comprises the following components (in percentage by mass): 45% of hard monomer, 40% of soft monomer, 2% of polymerization inhibitor, 3% of accelerator, 2% of initiator and 7% of polymethyl methacrylate molding compound.

Optionally, the waterproof coating comprises the following components (in percentage by mass): 50% of hard monomer, 35% of soft monomer, 3% of polymerization inhibitor, 2% of accelerator, 4% of initiator and 6% of polymethyl methacrylate molding compound.

Optionally, the hard monomer in step a is methyl methacrylate, the soft monomer in step a is isooctyl acrylate, and the accelerator is any one of N, N-dimethylaniline and N, N-dimethyl-p-toluidine in step a.

Optionally, the stirring device in the step D includes a stirring box, a top right side fixedly connected with stand column of the stirring box, a top fixedly connected with supporting block of the stand column, an upper surface fixedly connected with hydraulic cylinder of the supporting block, a piston rod fixedly connected with connecting block of the hydraulic cylinder, a lower surface fixedly connected with motor of the connecting block, an output end fixedly connected with (mixing) shaft of the motor, a chute has been seted up on the top of the stirring box, the bottom of the (mixing) shaft runs through the chute and is located inside the stirring box, three first stirring rods of the equal fixedly connected with in both sides of the lower end of the (mixing) shaft, a second stirring rod of the equal fixedly connected with in both sides of the upper.

It is optional, three first puddler is from last to being equidistant distribution down, first puddler and second puddler all are located the inside of agitator tank.

Optionally, the upper end of the left side of the stirring box is fixedly provided with a feeding pipe.

Optionally, the right side bottom fixedly connected with discharging pipe of agitator tank, fixed mounting has the valve on the discharging pipe.

Optionally, the four corners of the lower surface of the stirring box are fixedly connected with supporting blocks.

(III) advantageous effects

The invention provides a preparation method of a special waterproof coating for bridge floors, which has the following beneficial effects:

(1) the waterproof coating prepared by the invention has excellent mechanical property and dynamic rolling resistance, meets the special use condition of ballast tracks, and effectively prevents water leakage points.

(2) The invention arranges the materials in the stirring box through the feeding pipe, the starting motor drives the stirring shaft to rotate, the stirring shaft can drive the first stirring rod to rotate in the rotating process, the first stirring rod can drive the second stirring rod to rotate in the rotating process, the stirring shaft and the first stirring rod can transversely stir and mix the materials in the stirring box in the rotating process, the second stirring rod can vertically stir and mix the materials in the rotating process, meanwhile, the hydraulic cylinder is started to drive the connecting block to move left and right, the connecting block can drive the motor, the stirring shaft, the first stirring rod and the second stirring rod to move left and right in the process of moving left and right, materials can be fully contacted with the stirring shaft, the first stirring rod and the second stirring rod, and therefore the materials can be stirred and mixed more uniformly, wherein the stirring shaft moves left and right in the chute, and the first stirring rod and the second stirring rod move left and right in the stirring box.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic cross-sectional view of the agitator tank structure of the present invention.

FIG. 3 is a schematic view of the structure of the stirring tank of the present invention.

In the figure: 1. a stirring box; 2. a column; 3. a support block; 4. a hydraulic cylinder; 5. connecting blocks; 6. a motor; 7. a stirring shaft; 8. a chute; 9. a first stirring rod; 10. a second stirring rod; 11. a feed pipe; 12. a discharge pipe; 13. a valve; 14. a support block; 15. a support plate; 16. a protective shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.