KR101279889B1 - Method for production of asphalt typed water proof agent - Google Patents

Abstract

PURPOSE: A method for manufacturing asphalt typed water proof agent is provided to prevent from leaking rainwater by adhering to a waterproof agent on a crack of a building with an adhesive type after removing a silicon released paper. CONSTITUTION: A method for manufacturing asphalt typed water proof agent(100) comprises the following steps: a step aims to manufacture a dry matter by spray drying after mixing an asphalt compound, a process oil, a natural rubber, an SBS(styrene-butadienestyrene) synthetic rubber, and a sodium sulfate or a sodium carbonate; a step aims to manufacture an adhesive(20) adding the dry matter to a mixture; and a step aims to dry after adhering a silicon released paper(10) to a manufactured adhesive and adhering to a nonwoven fabric(30). The mixture is manufactured with mixing a butyl rubber, a process oil, a coumarone resin, a polybutene, an asphalt sealant, and a sodium sulfate or a sodium carbonate.

Description

Method for production of asphalt type waterproofing agent

The present invention relates to a manufacturing method of a waterproofing agent, and more particularly to a manufacturing method of an asphalt-based waterproofing agent.

The method used to form the waterproof layer on the structure is largely waterproof film and sheet waterproof.

Waterproofing is a kind of waterproofing method of polymer type. It is a method of forming a waterproof layer by applying synthetic rubber or synthetic resin solvent or emulsion on waterproof ground and penetrating it on waterproof ground. It means to form a multi-layer waterproof structure by repeatedly painting the construction surface with a roller, spray, brush or the like. However, a long construction period is required, the number of processes is high, labor costs are high, and adhesion between the waterproof layers is weak, so that an accident of peeling occurs frequently.

On the other hand, sheet waterproofing is a waterproof method applied to the construction of the membrane waterproof layer in the awnings, balconies, exterior walls, underground exterior walls, indoors, water tanks, swimming pools, artificial ponds and gardens of buildings, to compensate for the drawbacks of the waterproof film It is possible and is used a lot recently. In particular, in the case of waterproofing the local area, the construction method and the construction cost is cheaper than waterproofing the coating film, and thus it is more used.

Sheet waterproofing is a thin sheet-type waterproofing agent made of synthetic resin or synthetic rubber on the waterproof surface, which has a great advantage in terms of convenience. However, as the elongation rate decreases, the seam rises or the structure changes. (For example, in the case where the gap to be waterproofed is wider than in the first place), there has been a problem that the waterproofing agent bursts.

Therefore, to overcome the above disadvantages, the elongation is excellent, it will be required to develop a new sheet waterproofing agent that can cope with the structural change of the building.

Republic of Korea Patent Registration No. 10-0921676 (Registration Date: October 10, 2009) relates to the composite waterproof sheet structure and composite sheet waterproofing method, in particular composite waterproofing coating the upper part of the rubberized asphalt sheet with a solvent-free urethane waterproofing Sheet structure and composite sheet waterproofing method is described, rubberized asphalt layer; Nonwoven layer; It is characterized by comprising a solvent-free urethane waterproof coating layer.

In the present invention, to develop and provide a new asphalt-based waterproofing agent with excellent elongation.

The present invention is a mixture of asphalt compound, process oil, natural rubber, SBS synthetic rubber (styrene-butadiene-styrene copolymer), sodium sulfate or sodium carbonate, and then dried by a spray drying, butyl rubber, process oil, Kumaron resin, Preparing an adhesive by adding to the mixture prepared by mixing polybutene, asphalt sealant, sodium sulfate or sodium carbonate; It provides a method of producing a waterproofing agent comprising a; attaching the silicone foil to the adhesive prepared above, laminating with a non-woven fabric, and drying.

Asphalt compound used in the present invention is a product that improves the thermosensitivity by mixing animal and vegetable oil or mineral powder with petroleum asphalt, and is used as a waterproofing material or electrical insulating material of reinforced concrete or steel structure.

Process oil used in the present invention is a mineral oil added to improve the workability in the work process (mixing, extrusion, etc.) of the compound rubber, mainly paraffinic, naphthenic type obtained from the high boiling fraction of petroleum And aromatic systems.

SBS synthetic rubber used in the present invention is 'styrene-butadiene-styrene copolymer', which is commercially available in the form of pellets or copolymers. In the present invention, it is used by melting, and gives elasticity to the adhesive of the present invention.

Kumaron resin used in the present invention is a compound that increases the adhesion of the surface of the compound as a compounding agent, should be compatible with the rubber material, and maintained for a long time, and as the type of tackifier, Resins, phenol-formaldehyde-based resins, xylene-formaldehyde resins, polyterpine resins, petroleum hydrocarbon resins, rosin esters and the like. Kumaron resin is widely used as a tackifier of SBR, NBR, CR, EPDM, and is known to be excellent in non-toxicity, acid-alkali resistance, water resistance, and electrical insulation.

Polybutene (polybutene) used in the present invention is a formula C ₄ H ₈ , a colorless gas with a particular smell, molecular weight is 56.11. It liquefies easily by pressurization or cooling. There are three isomers of α-butylene, β-butylene and isobutylene, and β-butylene has cis-type and trans-type geometric isomers. In addition, (alpha)-butylene and (beta) -butylene are called n-butylene (normal butylene), and when referring only to butylene, this is often referred to. Mainly used as binder and thickener.

The butyl rubber used in the present invention is a material constituting the kitchen water layer, and is a highly durable material capable of forming a waterproof layer by inherent adhesion, without using an adhesive and a hot air blower, when constructing a concrete base. Butyl rubber is low in gas permeability, resistant to secular changes and ozone, and excellent in chemical resistance such as not being eroded by dilute natural acids or alkalis. In addition, due to the characteristics of rubber, it is excellent in elasticity and can cope with shrinkage and expansion according to the structure's behavior, and it has excellent cold resistance to maintain physical properties at low temperatures, and its ductility allows it to be installed according to the shape of the floor without additional processing. And the adhesive strength is high, the workability is very high. However, when used alone, it is not suitable for rooftop recording method because it is not rooted, and when it is installed in an exposed type because of its very soft soft property, scratches occur on the bottom surface even by a small impact, and once the sheet is stretched, There is a problem that the thickness of the site becomes thin. By the way, in the present invention to overcome these problems, it is possible to provide a waterproofing agent with excellent stretch force.

Asphalt sealant used in the present invention is based on asphalt and thermoplastic rubber, but has sufficient strength, heat resistance and low temperature flexibility, but is added with a tackifier to prevent adhesion failure, sufficient processability at a temperature of about 180 ℃ It contains a softener to give. Thermoplastic rubbers increase the modulus and strength of the asphalt composition and prevent increased low temperature brittleness. As the thermoplastic rubber, many styrene-conjugated diene block copolymers are used. Rosin, modified rosin, and petroleum resin are mainly used as a tackifier, and process oil, bunker C oil, waste edible oil, etc. may be used as a softener.

Meanwhile, among the raw materials or materials used in the present invention, natural rubber, sodium sulfate, sodium carbonate, silicon paper, and nonwoven fabrics other than those described above may be widely known in the art, and may be easily purchased.

On the other hand, in the manufacturing method of the waterproofing agent of the present invention, the dried material, preferably step 1 of mixing the asphalt compound, the process oil, and then mixing while heating to prepare a mixture 1; Preparing a mixture 2 by adding natural rubber and SBS synthetic rubber to the mixture 1 and mixing the mixture while heating; After further mixing sodium sulfate or sodium carbonate in the mixture 2, it is preferable to use the one prepared from step 3 to obtain a dry by spray drying.

On the other hand, in the manufacturing method of the waterproofing agent of the present invention, the dried material is preferably prepared by mixing 7% of asphalt compound 76%, process oil 2%, natural rubber 5%, SBS synthetic rubber 10%, sodium sulfate or sodium carbonate. It is good to use.

On the other hand, in the method for producing a waterproofing agent of the present invention, the mixture is preferably mixed with butyl rubber, process oil, Kumaron resin, polybutene and asphalt sealant in a preheated stirrer, followed by mixing while heating to mix the mixture a. Manufacturing step a; Addition of sodium sulfate or sodium carbonate to the mixture a further mixing step b; it is good to use that prepared from.

On the other hand, in the manufacturing method of the waterproofing agent of the present invention, the mixture is preferably 72% butyl rubber, 3% process oil, 10% Kumaron resin, 5% polybutene, 3% asphalt sealant, sodium sulfate or sodium carbonate 7% It is good to use that produced.

Asphalt-based waterproofing agent of the present invention, when asked to test the Korea Institute of Construction Materials, as shown in the accompanying test report, the excellent effect of the elongation rate corresponding to 986% (about 10 times) was exhibited.

1 is a laminated perspective view showing the configuration of the present invention asphalt-based waterproofing agent.
Figure 2 is a state diagram showing the use of the asphalt-based waterproofing agent actually used in the present invention.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the scope of the present invention is not limited to the following embodiments, and includes modifications of equivalent technical ideas.

[ Example  1: Asphalt system  Preparation of Waterproofing Agent]

Mixing asphalt compound, process oil, natural rubber, SBS synthetic rubber, sodium sulfate or sodium carbonate, and then drying the dried product prepared by spray drying, butyl rubber, process oil, guarone resin, polybutene, asphalt sealant, sodium sulfate or sodium carbonate Adding to the prepared mixture to prepare an adhesive; And, the silicone adhesive was attached to the adhesive prepared above, laminated with a nonwoven fabric, and then dried to prepare a waterproofing agent of the present invention. Here, the spray drying may be a spray drying method commonly used in the art.

1 is a laminated perspective view showing the configuration of the asphalt-based waterproofing agent 100 prepared in the present invention. As shown in FIG. 1, the top layer 30 is a nonwoven fabric, the middle layer 20 is an adhesive, and the bottom layer 10 is a silicone release paper.

Figure 2 is a state diagram showing the use of the asphalt-based waterproofing agent prepared in the present invention actually used. After the waterproofing agent 100 of the present invention is removed from the silicone release paper, it is adhesively attached to the gap of the building (200a, 200b), through which it can prevent the rain water leak into the gap.

On the other hand, the dried, step 1 of mixing the asphalt compound, the process oil, and then mixing while heating to produce a mixture (1); Preparing a mixture 2 by adding natural rubber and SBS synthetic rubber to the mixture 1 and mixing the mixture while heating; Further mixing sodium sulfate or sodium carbonate in the mixture 2, followed by spray drying to obtain a dried product, which is prepared from step 3, wherein the dried product is asphalt compound 76%, process oil 2%, natural rubber 5 %, SBS synthetic rubber 10%, sodium sulfate or sodium carbonate are mixed in a proportion of 7%. In this case,% means weight%.

On the other hand, the mixture is mixed with butyl rubber, process oil, Kumaron resin, polybutene, asphalt sealant in a pre-heated stirrer, and then mixing while heating to prepare a mixture a; And adding sodium sulfate or sodium carbonate to the mixture a further by mixing b; wherein the mixture is 72% butyl rubber, 3% process oil, 10% guarone resin, 5% polybutene, 3% asphalt sealant, 7% calcium sulfate or calcium carbonate are mixed. In this case,% means weight%.

[ Test Example  1: invention Asphalt system  Tensile Performance Test of Waterproofing Agent]

The asphalt-based waterproofing agent prepared in Example 1 was tested by the Korea Institute of Construction Materials, and the elongation rate was measured. The results are shown in the following test report.

As confirmed by the test report, the waterproofing agent of the present invention reached about 10 times the elongation rate.

100: the present invention waterproofing agent
10: silicone release paper
20: adhesive
30: nonwoven fabric

Claims (5)

Iii) asphalt compound; Ii) process oil; Iii) natural rubber; Iii) SBS synthetic rubber (styrene-butadiene-styrene copolymer); And iii) sodium sulfate or sodium carbonate; and then spray-dried to prepare a dried product.
The dried material is butyl rubber; ② process oil; ③ guaron resin; ④ polybutene; ⑤ asphalt sealant; And (6) adding sodium sulfate or sodium carbonate to the mixed mixture to prepare an adhesive; And
Attaching the silicone foil to the adhesive prepared above, laminating with a nonwoven fabric, and then drying the method.
The method of claim 1,
The dry matter,
Mixing the asphalt compound and the process oil, and then mixing the mixture while heating to prepare a mixture 1;
Preparing a mixture 2 by adding natural rubber and SBS synthetic rubber to the mixture 1 and mixing the mixture while heating;
And further mixing sodium sulfate or sodium carbonate in the mixture 2, followed by spray drying to obtain a dried product. 3.
The method of claim 1,
The dry matter,
Viii) 76% asphalt compound; Ii) 2% process oil; Iii) 5% natural rubber; V) 10% SBS synthetic rubber; And iii) 7% sodium sulfate or sodium carbonate.
The method of claim 1,
The mixture may contain,
Preparing a mixture a by mixing butyl rubber, process oil, Kumaron resin, polybutene and asphalt sealant in a preheated stirrer, followed by mixing while heating;
And adding sodium sulfate or sodium carbonate to the mixture a, and then mixing the mixture b to prepare a waterproofing agent.
The method of claim 1,
The mixture may contain,
① butyl rubber 72%; ② process oil 3%; ③ 10% Guaron resin; ④ 5% polybutene; ⑤ asphalt sealant 3%; And ⑥ sodium sulfate or sodium carbonate 7%; manufacturing method of the waterproofing agent characterized in that it was prepared by mixing.

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