阅读说明：本技术 自粘防水卷材及其制备方法和自粘主体及其制备方法 (Self-adhesive waterproof roll and preparation method thereof, and self-adhesive main body and preparation method thereof ) 是由 赵文炳 曾心 蒲学刚 吕超 兰文科 于 2021-06-29 设计创作，主要内容包括：本申请公开一种斜坡屋面用自粘防水卷材及其制备方法,包括自粘主体、设置于自粘主体上表面的海砂层和设置于自粘主体下表面的防粘膜,自粘主体包括以下以总质量百分比计的组分：沥青50～55％,SBS热塑性橡胶6～10％,丁苯橡胶2～3％,胶粉6～8％,基础油12～18％,滑石粉18～24％。本申请还公开一种自粘主体及其制备方法。其能直接与斜坡屋面粘和,并且上表面是砂面,能够防滑和与保护层结合,甚至不打保护层,在自粘基础上加了自愈性,能够在粘接后在打钉子加固,再与钢钉口子愈合。(The application discloses self-adhesion waterproofing membrane for slope roofing and preparation method thereof, including self-adhesion main part, set up the sea sand layer of self-adhesion main part upper surface and set up the antiseized membrane of self-adhesion main part lower surface, the self-adhesion main part includes following component by total mass percent: 50-55% of asphalt, 6-10% of SBS thermoplastic rubber, 2-3% of styrene butadiene rubber, 6-8% of rubber powder, 12-18% of base oil and 18-24% of talcum powder. The application also discloses a self-adhesive body and a preparation method thereof. It can be directly with the slope roofing glue to the upper surface is the sand face, can antiskid and combine with the protective layer, does not beat the protective layer even, has added the self-healing nature on the self-adhesion basis, can consolidate at the nailing machine after the bonding, heals with the steel nail mouth again.)

1. The utility model provides a slope self-adhesion waterproofing membrane for roofing, its characterized in that includes the self-adhesion main part, sets up in the sea sand layer of self-adhesion main part upper surface and sets up in the antiseized membrane of self-adhesion main part lower surface, and the self-adhesion main part includes following component by total mass percent: 50-55% of asphalt, 6-10% of SBS thermoplastic rubber, 2-3% of styrene butadiene rubber, 6-8% of rubber powder, 12-18% of base oil and 18-24% of talcum powder.

2. A preparation method of a self-adhesive waterproof roll for a slope roof is characterized by comprising the following steps:

the self-adhesive waterproof roll material for the slope roof as claimed in claim 1, wherein the self-adhesive waterproof roll material for the slope roof is prepared by adding asphalt, SBS thermoplastic rubber, styrene-butadiene rubber, rubber powder, base oil and talcum powder into a material preparation tank, stirring at 180 +/-5 ℃ for 2-3 hours, completely fusing all the components, grinding and turning the tank by a colloid mill, checking a semi-finished product when the temperature is reduced to 145-155 ℃, turning the semi-finished product into an oil coating tank after the semi-finished product is checked to be qualified, controlling the thickness of a cross film after the oil coating tank passes through a cross film to obtain a self-adhesive main body, scattering sea sand on the upper surface of the self-adhesive main body to form a sea sand layer, covering an anti-adhesive film on the lower surface of the self-adhesive main body, and cooling to obtain the self-adhesive waterproof roll material for the slope roof.

3. The preparation method of the self-adhesive waterproof roll for the slope roof, which is characterized by further comprising the following steps of: and (4) rolling down the self-adhesive waterproof coiled material for the slope roof obtained by cooling, detecting, packaging and warehousing after the detection is qualified.

4. The self-adhesive main body of the self-adhesive waterproof roll material for the slope roof is characterized by comprising the following components in percentage by mass: 50-55% of asphalt, 6-10% of SBS thermoplastic rubber, 2-3% of styrene butadiene rubber, 6-8% of rubber powder, 12-18% of base oil and 18-24% of talcum powder.

5. A preparation method of a self-adhesive main body of a self-adhesive waterproof roll for a slope roof is characterized by comprising the following steps:

the self-adhesive waterproof roll material for the slope roof as claimed in claim 4, wherein the self-adhesive waterproof roll material comprises asphalt, SBS thermoplastic rubber, styrene-butadiene rubber, rubber powder, base oil and talcum powder, the asphalt, SBS thermoplastic rubber, styrene-butadiene rubber, rubber powder, base oil and talcum powder are added into a material mixing tank, the materials are stirred for 2-3 hours at the temperature of 180 +/-5 ℃, the materials are ground and turned over through a colloid mill after being completely fused, a semi-finished product is inspected when the temperature is reduced to 145-155 ℃, the semi-finished product is turned into an oil coating tank after the semi-finished product is inspected to be qualified, and the thickness of the cross membrane is controlled after the oil coating tank is coated to obtain the self-adhesive main body.

Technical Field

The application relates to a waterproof material and a preparation technology thereof, in particular to a self-adhesive waterproof roll for a slope roof and a preparation method thereof, and a self-adhesive main body and a preparation method thereof.

Background

At present, slope roofing does not have special waterproof product, for example, slope roofing uses modified asphalt coiled material construction to be heavier now, and during the construction, modified asphalt coiled material product need to be baked by a fire, and the construction is dangerous on slope roofing. In the aspect of self-adhesive polymer modified asphalt waterproof coiled materials, feet can be adhered in double-adhesion construction, and the feet are easy to slip and unsafe in single-adhesion construction. And does not adhere well to the protective layer.

Disclosure of Invention

The purpose of this application lies in: provides a self-adhesive waterproof roll material with contraction self-healing performance for a sloping roof, a preparation method thereof, a self-adhesive main body and a preparation method thereof.

The application is realized by the following technical scheme:

the utility model provides a slope roofing self-adhesion waterproofing membrane, includes the self-adhesion main part, sets up in the sea sand layer of self-adhesion main part upper surface and sets up in the antiseized membrane of self-adhesion main part lower surface, and the self-adhesion main part includes following component by total mass percent: 50-55% of asphalt, 6-10% of SBS thermoplastic rubber, 2-3% of styrene butadiene rubber, 6-8% of rubber powder, 12-18% of base oil and 18-24% of talcum powder.

A preparation method of a self-adhesive waterproof roll for a slope roof comprises the following steps:

adding asphalt, SBS thermoplastic rubber, styrene-butadiene rubber, rubber powder, base oil and talcum powder into a proportioning tank according to the total mass percentage in the self-adhesive waterproof coiled material for the slope roof, stirring for 2-3 h at the temperature of 180 +/-5 ℃, grinding and turning the tank by a colloid mill after all components are completely fused, carrying out semi-finished product inspection when the temperature is reduced to 145-155 ℃, turning the semi-finished product into an oil coating tank after the semi-finished product is qualified, controlling the thickness of a cross film after the oil coating tank to obtain a self-adhesive main body, scattering sea sand on the upper surface of the self-adhesive main body to form a sea sand layer, covering an anti-adhesive film on the lower surface of the self-adhesive main body, and cooling to obtain the self-adhesive waterproof coiled material for the slope roof.

Further comprising: and (4) rolling down the self-adhesive waterproof coiled material for the slope roof obtained by cooling, detecting, packaging and warehousing after the detection is qualified.

The self-adhesive main body of the self-adhesive waterproof roll material for the slope roof comprises the following components in percentage by mass: 50-55% of asphalt, 6-10% of SBS thermoplastic rubber, 2-3% of styrene butadiene rubber, 6-8% of rubber powder, 12-18% of base oil and 18-24% of talcum powder.

A preparation method of a self-adhesive main body of a self-adhesive waterproof roll for a slope roof comprises the following steps:

adding asphalt, SBS thermoplastic rubber, styrene butadiene rubber, rubber powder, base oil and talcum powder which are calculated according to the total mass percentage in the self-adhesive waterproof coiled material for the slope roof into a mixing tank, stirring for 2-3 h at the temperature of 180 +/-5 ℃, grinding and turning the tank by a colloid mill after all components are completely fused, carrying out semi-finished product inspection when the temperature is reduced to 145-155 ℃, turning the semi-finished product into an oil coating tank after the semi-finished product is qualified, and controlling the thickness of the cross membrane after the oil coating tank to obtain a self-adhesive main body.

Compared with the prior art, the method has the following beneficial technical effects:

the self-adhesion coiled material of this application can be directly glue with the slope roofing to the upper surface is the sand face, can antiskid and combine with the protective layer, does not beat the protective layer even, has added self-healing nature on the self-adhesion basis, can fix up with the nail mouth healing again after bonding.

Drawings

FIG. 1 is a schematic view of the peel strength of cement mortar to which the present application relates.

Fig. 2 is a schematic structural view of the self-adhesive waterproof roll for slope roofs of the present application.

Detailed Description

All of the features disclosed in this specification, or all of the steps of any method or process so disclosed, may be combined in any combination, except features and/or steps which are mutually exclusive, unless expressly stated otherwise, with other alternative features which are equivalent or similar in purpose, i.e. each feature is an embodiment of a range of equivalent or similar features, unless expressly stated otherwise.

The contents of the present application will be described in further detail with reference to examples.

Examples 1 to 8

Referring to fig. 2, the application discloses a self-adhesion waterproofing membrane for slope roofing, including self-adhesion main part 4, set up in sea sand layer 5 of self-adhesion main part upper surface and set up in antiseized membrane 6 of self-adhesion main part lower surface, self-adhesion main part 4 includes following component: asphalt, SBS thermoplastic rubber, styrene butadiene rubber, rubber powder, base oil and talcum powder; the parts of each component in percentage by mass are shown in table 1.

Table 1 self-adhesive body formula

Example numbering	1	2	3	4	5	6	7	8
									Asphalt content (% by mass)	50	51	55	50	50	50	53	50
SBS thermoplastic rubber content (% by mass)	6	8	6	6	7	10	9	9
									Styrene butadiene rubber content (% by mass)	2	3	2	2	2	2.5	2	2
Rubber powder content (% by mass)	6	7	6	6	8	6	6	6
									Base oil content (% by mass)	12	13	13	18	15	12	12	12
Talcum powder content (% by mass)	24	18	18	18	18	19.5	18	21

Examples 9 to 16

The preparation method of the self-adhesive waterproof roll for the slope roof comprises the following steps:

adding asphalt, SBS thermoplastic rubber, styrene-butadiene rubber, rubber powder, base oil and talcum powder, calculated by total mass percentage, into the slope roof self-adhesive waterproof roll material according to any one of embodiments 1 to 8, stirring for 2 to 3 hours at the temperature of 180 +/-5 ℃, grinding and turning the roll material through a colloid mill after all the components are completely fused, carrying out semi-finished product inspection when the temperature is reduced to 145 to 155 ℃, turning the semi-finished product into an oil coating tank after the semi-finished product is qualified, controlling the thickness of a cross film after the oil coating tank to obtain a self-adhesive main body, scattering sea sand on the upper surface of the self-adhesive main body to form a sea sand layer, covering an anti-adhesive film on the lower surface of the self-adhesive main body, and cooling to obtain the slope roof self-adhesive waterproof roll material.

In some embodiments, the method for preparing the self-adhesive waterproof roll for the slope roof further comprises the following steps: and (4) rolling down the self-adhesive waterproof coiled material for the slope roof obtained by cooling, detecting, packaging and warehousing after the detection is qualified.

Examples 17 to 24

The application discloses self-adhesion waterproofing membrane's self-adhesion main part for slope roofing includes following component: asphalt, SBS thermoplastic rubber, styrene butadiene rubber, rubber powder, base oil and talcum powder; the parts of each component in percentage by mass are shown in table 1.

Examples 25 to 32

The preparation method of the self-adhesive main body of the self-adhesive waterproof roll for the slope roof comprises the following steps:

the self-adhesive waterproof roll material for the slope roof is prepared by adding asphalt, SBS thermoplastic rubber, styrene butadiene rubber, rubber powder, base oil and talcum powder in the self-adhesive waterproof roll material for the slope roof according to the total mass percentage into a mixing tank, stirring for 2-3 hours at the temperature of 180 +/-5 ℃, grinding and turning the tank by a colloid mill after all the components are completely fused, carrying out semi-finished product inspection when the temperature is reduced to 145-155 ℃, turning the semi-finished product into an oil coating tank after the semi-finished product is qualified, and controlling the thickness of a cross membrane after the cross membrane passes through the oil coating tank to obtain a self-adhesive main body.

The properties of the self-adhesive main body of the self-adhesive waterproof roll for the slope roof and the self-adhesive main body prepared by the preparation method thereof are further described below.

1.1 tensile Properties

The method is carried out according to the method A in GB/T328.9-2007, and the distance between the clamps and the distance between the marked lines are adjusted to be 100 mm. Recording the maximum tensile force (N) and the elongation (%) of the maximum tensile force, taking the average value of 5 test pieces in the same direction, multiplying the test result by 2 to convert the test result into N/50mm, and performing longitudinal and transverse separate tests to record whether the adhesive layer is separated from the high polymer film in the stretching process. If the tensile testing machine is pulled to the limit and the test piece is not broken, the distance between the clamps can be shortened, the distance between the marking lines is changed to be 50mm, the new test piece is used for testing again, and the elongation is calculated according to the distance between the marking lines. The arithmetic mean of the longitudinal test results, the arithmetic mean of the transverse test results and the phenomenon during stretching should all meet the requirements.

1.2 tear force

According to GB/T529-2008, a right-angle test piece without a notch is adopted, the maximum tension value is directly read, the result is expressed by a force value, and the tension speed is 250 mm/min.

And respectively calculating the arithmetic mean value of the tension of 5 test pieces in the same direction as the longitudinal or transverse tearing force of the coiled material, wherein the unit is N. The arithmetic mean of the longitudinal test results and the arithmetic mean of the transverse test results are all in accordance with the requirements.

1.3 Heat resistance

The method is carried out according to the method B in GB/T328.11-2007. All the anti-adhesive material was removed and the test piece was glued to a plywood sheet having a length of at least 10mm greater than the edge of the test piece and the plywood sheet was hung vertically. And measuring the slippage of the coating layer at any end of the test piece and the tire base by using a ruler with the accuracy of 0.5mm, and taking the value of the test piece with the maximum slippage as the slippage test result, wherein the slippage is accurate to 0.5mm. The test piece has no flow and dripping, the slippage of any test piece does not exceed the index, and the heat resistance of the test piece passes through the test piece at the specified temperature.

1.4 Low temperature flexibility

According to GB/T328.14. The bending axis diameter of H-type and E-type products is 20mm, 10 longitudinal test pieces, the upper surfaces of 5 test pieces and the lower surfaces of 5 test pieces are respectively tested, at least 4 test pieces in 5 test pieces on each surface visually have no cracks and pass through the surface, and the upper surface and the lower surface of each test piece are considered to meet the low-temperature flexibility requirement.

1.5 Water impermeability

The method is carried out according to the method B in GB/T328.10-2007. The H-type and E-type coiled materials adopt a cross-shaped slotted disk, and the test time is 120 min. The anti-sticking material was removed and covered with filter paper to avoid sticking. All 3 test pieces are not permeable at the specified pressure and within the specified time, and the requirement of water impermeability is met.

1.6 coiled material to coiled material peeling strength (overlap edge)

1.6.1 No treatment

According to GB/T328.20. Cutting one test piece at the lap joint of the longitudinal long edge of the coiled material, cutting the other test piece at the other side of the longitudinal long edge of the coiled material, removing all anti-sticking materials on the surface of the test piece, bonding the lower surface of one test piece with the upper surface of the other test piece, wherein the bonding surface is 50 multiplied by 75mm, repeatedly rolling for 3 times by using a press roll with the mass of 2kg and the width of 50 mm-60 mm, and then placing for 24 hours.

The maximum peel force is divided by the specimen width as the peel strength result in N/mm.

1.6.2 treatment of immersion in Water

The test piece lapped according to the 1.6.1 is soaked in water with the temperature of 23 ℃ soil and the temperature of 2 ℃ soil for 168 hours for 2 hours, taken out and sucked to dry the surface open water, and then the test is carried out according to the 1.6.1.

1.6.3 Heat treatment

Horizontally placing two non-overlapped test pieces without the surface isolation materials in a 70 ℃ soil 2 ℃ oven for 168h and 2h respectively, taking out the test pieces, placing the test pieces at 23 ℃ soil 2 ℃ for 24h, cutting the test pieces, and performing the operation according to the formula of 1.6.1.

1.7 oil permeability

Removing the anti-sticking material on the lower surface of the test piece, respectively placing the rubber surface downwards on 5 layers of medium-speed qualitative filter paper with the area not smaller than that of the test piece, then sealing and wrapping the filter paper and the test piece by using an aluminum foil, horizontally placing the test piece on a glazed tile, placing the filter paper below, pressing a 1kg weight on the test piece, placing the weight contact surface not smaller than the size of the test piece, then placing the test piece into an oven with the temperature of 80 ℃ soil and 2 ℃, horizontally placing the test piece for 24h and 15min, then placing the test piece for 2h at 23 ℃ soil and 2 ℃, and checking the number of oil seepage.

The filter paper having the stain trace was measured as bleeding, and the number of bleedout was the largest among 3 specimens as a test result.

1.8 permanent tack

The test piece is adhered to two mirror surface stainless steel plates with the thickness not less than 1.5mm at the temperature of 23 ℃ and 2 ℃ and the surface is cleaned by using a solvent, the adhesion area of the stainless steel plate on the upper plate is 50 multiplied by 50mm, the adhered part of the test piece is not allowed to contact hands and other objects after the anti-adhesion material is removed, the test piece is immediately adhered to the stainless steel plate, and then the test piece is repeatedly rolled for 3 times by using a press roll with the mass of 2kg and the width of 50 mm-60 mm.

The bonded test piece was left to stand at 23 ℃ and 2 ℃ for 24h, hung vertically in the direction shown in fig. 2, hung with lkg weight (including the mass of the lower plate) at the lower end of the lower plate, and the time was recorded, and the time required for the test piece to be completely peeled off from the upper plate was recorded in min. The average of the test results of 5 test pieces was taken. If the film does not peel off after more than 60min, the record is more than 60 min.

1.9 Peel Strength with Cement mortar

1.9.1 No treatment

1.9.1.1 the cement mortar has the following mixing ratio: strength grade 41.5 Portland Cement ISO Standard Sand: water 1:2: 0.4.

1.9.1.2 the bonding surface size of the test piece is 70X 50mm, a plurality of test pieces are prepared simultaneously by pouring mortar on a large block of coiled material, and the test piece is cut to the specified size before the peeling test. And (3) removing the anti-adhesion material on the bonding surface of the test piece, flatly placing the test piece at the bottom of the mold with the bonding surface facing upwards (double-sided bonding, and adopting the lower surface for testing), pouring the cement mortar mixture into the mold, and compacting for 20s on a concrete vibration table conforming to JG/T245, wherein the thickness is 30-50 mm. The mixture is placed at 23 ℃ and 2 ℃ for 24h for demoulding, and is cured under standard curing conditions for 168 h. 1.9.1.3 test piece is placed in a room at 23 ℃ and 2 ℃ for 4h, a cement mortar board is mounted on a clamp at one end of the tester, one end of the unbonded coiled material is turned 180 degrees and clamped in a clamp at the other end of the tester, and the longitudinal axis of the test piece is coincided with the axes of the tensile tester and the clamp (see figure 1). The distance between the clamps is at least 100mm and does not bear preload. The test was carried out at 23 ℃ and 2 ℃ with a drawing speed of 100mm/min and 10 mm/min. The tension was recorded continuously until the test piece separated. In fig. 1, reference numeral 1 denotes cement mortar, reference numeral 2 denotes a bonding surface of 70 × 50mm, reference numeral 3 denotes a self-adhesive waterproof roll for a slope roof of the present application, and F denotes a tensile force.

The stress strain was removed and the average of the average peel force or peak area force of the central 1/2 area divided by the specimen width in N/mm was taken as the peel strength of the specimen in the initial and final 1/4 areas of fig. 1 and the test results were taken as the arithmetic average of the 5 specimen results.

1.9.1.4 heat treatment

The coil test pieces which had not had the surface removed but had no insulation bonded to the mortar were placed horizontally in a 70 ℃ 2 ℃ oven for 168h 2h and then tested as 1.9.1.

1.10 peel strength after soaking with cement mortar

Test pieces were prepared and cured as in 1.9.1, immersed in water at 23 ℃ and 2 ℃ for 28d 2h, and then tested as in 1.9.1.3.

1.11 Heat aging

The test piece was placed flat on a slightly larger size plywood with the glue side facing up. And (3) reserving an isolation material on the surface of the adhesive layer, placing a piece of non-woven fabric with similar size and an aluminum-plastic plate with the thickness of 3-4 mm on the surface of the adhesive layer to avoid rolling up of the coiled material, horizontally placing the coiled material in an oven with the temperature of 80 ℃ and the temperature of 2 ℃ for 168h and 2h, taking out the coiled material, placing the coiled material in an oven with the temperature of 23 ℃ and the temperature of 2 ℃ for 24h, and cutting the coiled material into a test piece. The tensile properties were measured as 1.1 and the retention was calculated as formula (1); the low temperature flexibility was measured as 1.4.

Q＝q1/q2×100％ (1)

In formula (1):

q-retention of tensile force, elongation, expressed in%;

q 1-tensile, elongation values after heat aging;

q 2-tensile, elongation before heat aging values.

The test result is the average value of 5 test pieces in the same direction, and the longitudinal direction and the transverse direction respectively meet the requirements.

1.12.1 rate of change of dimension

A test piece is horizontally placed on a plywood with a slightly larger size, the glue layer faces upwards, an isolation material on the surface of the glue layer is reserved, a piece of non-woven fabric with a similar size and an aluminum-plastic board with a thickness of 3 mm-4 mm can be placed on the glue layer, the coiled material is prevented from rolling up, then the test piece is horizontally placed in a baking oven with a temperature of 90 ℃ and a temperature of 2 ℃ for 24h and taken out after 15min, after the test piece is placed at the temperature of 23 ℃ and the temperature of 2 ℃ for 2h, the longitudinal size and the transverse size of the test piece before and after a polymer film-substrate test are measured at the same position in the middle of two ends of the test piece after the test piece is flattened, the longitudinal size change rate and the transverse size change rate are respectively calculated according to the formula (2), and the arithmetic mean value of the longitudinal test result and the arithmetic mean value of the transverse test result both meet the requirements.

In formula (2):

s-rate of change in size, expressed in%;

s1-post-treatment dimension in millimeters (mm);

S0-Pre-treatment dimension in millimeters (mm).

1.12.2 thermal stability

Removing the anti-sticking material on the lower surface of the test piece, sticking the test piece on a plywood with a larger size, repeatedly rolling for 3 times by using a compression roller with the mass of 2kg and the width of 50-60 mm, horizontally placing the test piece in a baking oven with the temperature of 70 ℃ and the temperature of 2 ℃ for 24 hours and taking out the test piece after 15 minutes if the isolation material on the upper surface is reserved, and observing and recording whether the test piece has the phenomena of flowing, facial mask sliding, middle bulging and wrinkling. The polymer film or the base edge curl should not exceed the edge length 1/4 at most.

The physical and mechanical properties of the self-adhesive waterproof roll for the slope roof are obtained according to the method and are shown in table 2.

TABLE 2 physical and mechanical properties of self-adhesive waterproof coiled material for slope roof

From table 2, it can be found that the stretch and tear properties of the self-adhesive waterproof roll for the slope roof are mainly affected by the self-adhesive tire base, the proportion of the ingredients of the self-adhesive main body is not greatly affected, the heat resistance, the thermal aging, the peeling strength with cement and the size change rate are mainly affected by SBS thermoplastic rubber, and the physical and mechanical property data of the self-adhesive waterproof roll for the slope roof with the mass ratio of BS thermoplastic rubber of more than 8 percent in total mass percentage are obviously better; the bonding strength of the lap joint edge is mainly greater than the effect of SBR, and the bond strength is obvious when the mass proportion of the SBR is more than 2.5 percent in terms of the total mass percentage; all data of the physical and mechanical properties of the self-adhesive waterproof roll for the slope roof exceed the N-type standard of GB23441-2009 self-adhesive polymer, the self-adhesive waterproof roll has better adhesive property and self-healing property, and meets the existing waterproof requirement.

The foregoing is directed to embodiments of the present invention, which are not limited thereto, and any simple modifications and equivalents thereof according to the technical spirit of the present invention may be made within the scope of the present invention.