CN107286542B

CN107286542B - Isolating membrane material composition for waterproof coiled material

Info

Publication number: CN107286542B
Application number: CN201610199716.8A
Authority: CN
Inventors: 肖颖喆; 郝喜海
Original assignee: Zhuzhou Blue Sea Packaging Co ltd
Current assignee: Zhuzhou Blue Sea Packaging Co ltd
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2021-05-11
Anticipated expiration: 2036-03-31
Also published as: CN107286542A

Abstract

The invention discloses a barrier film material composition for a waterproof roll, which is prepared from the following components in percentage by weight: 70% -90% of polyvinyl alcohol; 0.5-10% of functional additive; 0.5% -3% of a dispersant; 0.5% -6% of a surfactant; 1% -6% of a plasticizer; the balance of water; the invention creates a new material which is commonly used in building construction and is added as a functional additive in the preparation process of the isolating membrane, improves the dissolving speed of the isolating membrane and the binding force between the concrete and the waterproof coiled material after pouring, and obviously improves the waterproof effect. The application of the isolating membrane material composition for the waterproof coiled material provided by the invention has the advantages that the stripping of the special sand-containing water-soluble isolating membrane for the waterproof coiled material is not needed in the construction, the construction strength is effectively reduced, the pollution is reduced, the environment is protected, the problems that the existing concrete and the asphalt coiled material are not firm in binding force and easy to separate and the like can be solved, the construction efficiency can be greatly improved, the production cost and the use cost are saved, and the composition is economic and environment-friendly.

Description

Isolating membrane material composition for waterproof coiled material

Technical Field

The invention belongs to the field of preparation of an isolation membrane material, and particularly relates to an isolation membrane material composition for a waterproof coiled material.

Background

At present, waterproofing membrane's in the production process, can use the barrier film in order to prevent waterproofing membrane's adhesion, can bond together in order to make barrier film and waterproofing membrane, can lay the cementing layer on its surface earlier usually, and barrier material passes through the cementing layer and combines with waterproof material, reaches the isolation effect. The most common is PET (polyester) film, on one hand, the waterproof coiled material must be stripped before concrete is poured in the building construction, and the removed isolation film cannot be used again, so that the construction workload is increased, and the environment is not protected; on the other hand, the cementing layer is easy to age, can influence the combination effect of waterproof layer and concrete, is unfavorable for the maintenance of water-proof effects, and in the work progress, along with the barrier film is peeled off, the foot can be glued to exposed cementing layer, influences the efficiency of construction.

The utility model discloses a utility model patent with the publication number of CN 204801166U discloses a 'macromolecule self-adhesive waterproof roll', which comprises an upper layer which is a macromolecule waterproof roll layer, a middle non-solidified self-adhesive layer, a lower layer which is a non-removed anti-adhesive isolation film layer composed of water-soluble film materials and an invention patent application with the application number of CN2015102557553.X, and discloses a direct-buried macromolecule pre-laid waterproof roll and a preparation method thereof, wherein the disclosed roll comprises a water-soluble protective layer, a pressure-sensitive self-adhesive layer and a macromolecule sheet layer from top to bottom, and the water-soluble protective layer is connected with the macromolecule sheet layer through the pressure-sensitive self-adhesive layer; according to the technical scheme disclosed by the two, although the isolation effect can be completely realized, stripping is not needed after concrete pouring, and the problem of construction inconvenience caused by foot sticking is solved, the problems that the binding force of concrete and an asphalt coiled material is not firm, the concrete and the asphalt coiled material are easy to separate and the like still exist, and the waterproof effect is influenced.

Disclosure of Invention

The invention aims to solve the technical problems of the existing waterproof coiled material isolating membrane and provides a safe and environment-friendly isolating membrane material composition for a waterproof coiled material, which can solve the problems of weak binding force, easy separation and the like of the existing concrete and a waterproof material.

The purpose of the invention is realized by the following technical scheme:

the composition of the isolating membrane material for the waterproof roll is characterized by comprising the following components in percentage by weight:

70% -90% of polyvinyl alcohol;

0.5% -10% of functional additive;

0.5% -3% of a dispersant;

0.5% -6% of a surfactant;

1% -6% of a plasticizer;

the balance of water;

wherein, the functional additive is one or more of quartz sand, talcum powder and titanium dioxide. The functional additive is used in the isolating membrane material composition for the waterproof coiled material, so that the problem that the binding force of concrete and the asphalt coiled material is not firm and is easy to separate to greatly influence the waterproof effect when a common polyvinyl alcohol water-soluble membrane is used as an isolating membrane in the prior art can be effectively solved; the function of the surfactant is to achieve film formation; the plasticizer is used for adjusting the flexibility of the film; the dispersant is used for preventing the functional additive from being unevenly distributed in the membrane in the production process to influence the functional use of the isolating membrane.

Preferably, the water-soluble film material composition comprises the following components in percentage by weight:

75% -85% of polyvinyl alcohol;

2.5% -8% of functional additive;

1.5% -2% of a dispersant;

1.5% -4% of a surfactant;

1% -5% of a plasticizer;

the balance of water;

wherein, the functional additive is one or more of quartz sand, talcum powder and titanium dioxide.

80% -85% of polyvinyl alcohol;

5% -8% of a functional additive;

1.5% -2% of a dispersant;

2% -3% of a surfactant;

2% -3.5% of a plasticizer;

the balance of water;

Preferably, the particle size of the functional additive is: preferably, the granularity of the quartz sand is 20-1000 meshes; further preferably, the granularity of the quartz sand is 200-600 meshes; most preferably, the granularity of the quartz sand is 300-400 meshes, the selection of the size of the functional additive is one of the key points of the preparation method, the formability of the isolating membrane is affected by too large granularity, and the even dispersion in the isolating membrane is not convenient by too small granularity. .

Preferably, the thickness of isolation layer is 5~20 mu m, and the thickness of water-soluble membrane can directly influence waterproofing membrane's water-proof effects to and as the isolation effect of barrier film, the thickness of membrane is too thin not to play fine isolation effect, and too thick can influence the bonding strength of asphalt waterproof layer and concrete, influences water-proof effects.

Preferably, the functional additive is quartz sand, the quartz sand can enable concrete to be combined with the waterproof roll more firmly after being poured, the water solubility of the obtained isolation film is improved, and the time required for dissolving the isolation film is reduced.

Preferably, the surfactant is one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate or a combination thereof.

Preferably, the plasticizer is one or more of glycerol, ethylene glycol and polyethylene glycol.

Preferably, the dispersing agent is one or more of sodium tripolyphosphate, sodium hexametaphosphate and sodium pyrophosphate; more preferably, the dispersant is sodium hexametaphosphate, and the dispersant can uniformly disperse the functional additive in the isolating membrane, so that the effect of the isolating membrane is further improved.

Preferably, the polyvinyl alcohol is a partially alcoholysis type polyvinyl alcohol; more preferably polyvinyl alcohol 17-88. The isolating membrane prepared by using partial alcoholysis type polyvinyl alcohol has the characteristic of being dissolved in water, can resist the temperature of about 220 ℃, is biodegradable, has good environmental protection property, and is suitable for the isolating membrane of the waterproof coiled material. The waterproof coiled material using the water-soluble film as the isolating film has the following greatest advantages: the isolating membrane does not need to be stripped before use in the building waterproof construction process, and the waterproof operation can be directly carried out, so that the construction process is simplified, the workload is saved, and the problems that the produced waste isolating membrane is not easy to recycle and pollutes the environment are solved.

Compared with the prior art, the invention has the following beneficial effects:

repeated tests prove that the components of the isolating membrane material composition for the waterproof coiled material and the optimal proportion of the components are accurately determined, so that the performance of the obtained isolating membrane material composition for the waterproof coiled material is optimal. Meanwhile, the water-soluble film forming agent is used as the base film in the isolating film material composition for the waterproof coiled material creatively, and meanwhile, materials commonly used in building construction are used as functional additives, so that the isolating film is endowed with new vitality, the isolating film not only can play a role in efficient isolation, but also can enhance the waterproof effect of the waterproof material.

The application of the isolating membrane material composition for the waterproof coiled material provided by the invention has the advantages that the stripping of the special sand-containing water-soluble isolating membrane for the waterproof coiled material is not needed in the construction, the construction strength is effectively reduced, the pollution is reduced, the environment is protected, the problems that the existing concrete and the asphalt coiled material are not firm in binding force and easy to separate and the like can be solved, the construction efficiency can be greatly improved, the production cost and the use cost are saved, and the composition is economic and environment-friendly.

Detailed Description

The present invention is further illustrated by the following specific examples, which are not intended to limit the invention in any way. Reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated. Unless otherwise specified, all the raw materials and equipment used in this example were those conventionally available in the art.

Example 1

Preparing the following components of the composition of the isolating membrane material for the waterproof coiled material in percentage by weight:

17-8885% of polyvinyl alcohol;

5% of titanium dioxide (300 meshes);

2% of sodium hexametaphosphate;

1% of sodium dodecyl sulfate;

3% of glycerol;

the balance of water.

Mixing the above materials in a reaction kettle, heating to 80 deg.C, adding water, stirring to obtain 12% aqueous sol solution, standing the sol solution for defoaming, casting with an aqueous sol casting machine to obtain membrane, and drying to obtain the isolating membrane with a thickness of about 20 μm.

Example 2

The rest is the same as the example 1, except that the composition of the isolation film material for the waterproof roll material comprises the following components in percentage by weight:

17-8890% of polyvinyl alcohol;

2.5 percent of quartz sand (600 meshes);

1.5 percent of sodium tripolyphosphate;

sodium dodecyl sulfate 1.5%;

1% of glycerol;

the balance of water.

Example 3

17-8880% of polyvinyl alcohol;

6 percent of talcum powder (1000 meshes);

3% of sodium pyrophosphate;

sodium dodecyl benzene sulfonate 3%;

2% of polyethylene glycol;

the balance of water.

Example 4

17-8870% of polyvinyl alcohol;

1% of quartz sand (20 meshes);

0.5 percent of sodium tripolyphosphate;

6 percent of sodium dodecyl benzene sulfonate;

5% of ethylene glycol;

the balance of water.

Example 5

17-8875% of polyvinyl alcohol;

4 percent of talcum powder (400 meshes);

1.2 percent of sodium hexametaphosphate;

2.5 percent of sodium dodecyl sulfate;

3.5 percent of glycerol;

the balance of water.

Example 6

17-8880% of polyvinyl alcohol;

4% of quartz sand (300 meshes);

2.5 percent of sodium hexametaphosphate;

5% of sodium dodecyl benzene sulfonate;

2% of glycerol;

the balance of water.

Example 7

17-8890% of polyvinyl alcohol;

titanium dioxide (300 mesh) 0.5%;

0.5 percent of sodium hexametaphosphate;

0.5 percent of sodium dodecyl benzene sulfonate;

4% of glycerol;

the balance of water.

Example 8

17-8870% of polyvinyl alcohol;

1% of talcum powder (300 meshes);

0.5 percent of sodium hexametaphosphate;

1% of sodium dodecyl benzene sulfonate;

6% of glycerol;

the balance of water.

Comparative example 1

The rest is the same as the example 6, except that the quartz sand in the composition of the isolation film material for the waterproof coiled material is replaced by polyvinyl alcohol 17-88, and the components and the percentage content thereof are as follows:

17-8884% of polyvinyl alcohol;

2.5 percent of sodium hexametaphosphate;

5% of sodium dodecyl benzene sulfonate;

2% of glycerol;

the balance of water.

Comparative example 2

The other parts are the same as the example 7, except that the titanium dioxide powder in the composition of the isolation film material for the waterproof roll is replaced by polyvinyl alcohol 17-88, and the components and the percentage content are as follows:

17-8890.5% of polyvinyl alcohol;

0.5 percent of sodium hexametaphosphate;

0.5 percent of sodium dodecyl benzene sulfonate;

4% of glycerol;

the balance of water.

Comparative example 3

The rest is the same as the example 8, except that the talc powder in the composition of the isolation film material for the waterproof roll is replaced by polyvinyl alcohol 17-88, and the components and the percentage content are as follows:

17-8871% of polyvinyl alcohol;

0.5 percent of sodium hexametaphosphate;

1% of sodium dodecyl benzene sulfonate;

6% of glycerol;

the balance of water.

The dissolution rates of the obtained barrier films of examples 1 to 8 and comparative examples 1 to 3 and the obtained barrier films were rolled on a waterproof material base layer by calendering equipment to obtain a waterproof roll, and the key performance index "and the peel strength of post-cast concrete" of the waterproof roll were tested according to the standard GB/T23457-2009, and the results are listed in table 1.

TABLE 1

	Thickness of isolation film/. mu.m	Dissolution time/s of isolating film	Peel strength N/mm from post-cast concrete
				Example 1	18	22	4.2
Example 2	20	23	4.3
				Example 3	12	20	4.4
Example 4	5	15	5.0
				Example 5	9	18	4.8
Example 6	16	20	5.1
				Example 7	18	22	4.6
Example 8	14	21	4.9
				Comparative example 1	17	29	3.9
Comparative example 2	18	31	3.6
				Comparative example 3	16	27	4.0

As can be seen from table 1, compared with the waterproof roll material using a common water-soluble film as the barrier film, the barrier film using the functional additive of the present invention has improved dissolution performance, and the dissolution time of the barrier film of the present invention is significantly shortened; the waterproof coiled material is applied to the waterproof coiled material, the peel strength of the obtained waterproof coiled material and post-cast concrete is increased, the waterproof effect is also improved, and the remarkable effect is obtained.

Claims

1. The composition of the isolation film material for the waterproof roll is characterized by being prepared from the following components in percentage by weight:

75 to 85 percent of polyvinyl alcohol;

2.5 to 8 percent of functional additive;

1.5 to 2 percent of dispersant;

1.5 to 4 percent of surfactant;

1% -5% of plasticizer;

the balance of water;

wherein the functional additive is one or more of quartz sand, talcum powder and titanium dioxide; the granularity of the functional additive is 20-1000 meshes; the thickness of the isolating film is 5-20 mu m; the plasticizer is one or more of glycerol, glycol and polyethylene glycol; the dispersing agent is one or more of sodium tripolyphosphate, sodium hexametaphosphate and sodium pyrophosphate; the surfactant is one or more of sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the polyvinyl alcohol is partially alcoholysis type polyvinyl alcohol.

2. The membrane material composition for waterproofing membranes according to claim 1, wherein the membrane material composition is prepared from the following components in percentage by weight:

80 to 85 percent of polyvinyl alcohol;

5 to 8 percent of functional additive;

1.5 to 2 percent of dispersant;

2 to 3 percent of surfactant;

2 to 3.5 percent of plasticizer;

the balance of water.

3. The barrier film material composition for waterproofing membranes according to claim 1, wherein the particle size of the functional additive is 200 to 600 mesh.

4. The barrier film material composition for waterproofing membranes according to claim 3, wherein the particle size of the functional additive is 300 to 400 mesh.

5. The composition of the film material for waterproofing membrane according to claim 1, wherein the polyvinyl alcohol is polyvinyl alcohol 17 to 88.