CN101644095B

CN101644095B - Styrene butadiene styrene (SBS) modified bituminous waterproof sheet material and preparation technology thereof

Info

Publication number: CN101644095B
Application number: CN2009103044369A
Authority: CN
Inventors: 段霓华; 王峰华
Original assignee: LIGAO WATER-PROOF ENGINEERING Co Ltd BEIJING; BEIJING LIGAO TECHNOLOGY Co Ltd
Current assignee: Beijing Ligao Science & Technology Co.,Ltd.; BEIJING LIGAO WATERPROOFING CO LTD
Priority date: 2009-07-16
Filing date: 2009-07-16
Publication date: 2011-01-12
Anticipated expiration: 2029-07-16
Also published as: CN101644095A

Abstract

The invention provides a styrene butadiene styrene (SBS) modified bituminous waterproof sheet material and preparation technology thereof. The waterproof sheet material comprises polyester cloths, an immersion oil coating layer and a film-mulching layer. The immersion oil coating layer comprises the following materials in parts by mass: 32-52 parts of bitumen, 12-22 parts of residual oil, 9-19 parts of EPDM rubber powder, 2-7 parts of butyl rubber powder, 11-21 parts of talc powder and 5.6-10.6 parts of SBS rubber. The bitumen is the mixture of 9-19 parts of 10# bitumen and 23-33 parts of 60# bitumen. The invention is characterized by wide high temperature and low temperature resistance range, good elasticity and good hardness, is not easy to deform and is suitable for various levels of waterproofing works of roofing of industrial and civil buildings, underground, bridges, highways, swimming pools and the like in the south and in the north.

Description

Elastomer modified asphalt waterproof roll and preparation technology thereof

Technical field

The present invention relates to a kind of building waterproof coil, and the preparation technology of this waterproof roll.

Background technology

Waterproof roll is the building materials a kind of commonly used in the building operations, and in underground construction, construction of hydro project, waterproof roll is for reducing seepage, bearing than big flood and be pressed with very important meaning.Existing EPDM rubber waterproof rolling material has high strength, high-elongation, tearing strength height, high-low temperature resistant and anti-ozone, premium properties such as ageing-resistant, therefore uses comparatively extensive in building operations.But existing Ethylene Propylene Terpolymer waterproof roll is after laying is finished, and the waterproof base material can't combine closely with building basic unit, is easy to scurry seepage.Situation as the local infiltration of waterproofing course also can cause " scurrying water " under the whole waterproofing course.

Summary of the invention

The invention provides a kind of elastomer modified asphalt waterproof roll and preparation technology thereof, solve and to combine closely easy technical problem of scurrying seepage after existing waterproof roll is laid with building basic unit.

The technical solution adopted for the present invention to solve the technical problems is:

This elastomer modified asphalt waterproof roll comprises mylar, the immersion oil bed of material and overlay film layer, and it is as follows that the material of the described immersion oil bed of material is pressed proportion by weight:

Pitch 32-54 part;

Residual oil 12-22 part;

EPDM rubber powder 9-19 part;

Butyl rubber powder 2-7 part;

French chalk 11-21 part;

SBS glue 5.6-10.6 part.

Described pitch is the mixture of No. 10 pitches and No. 60 pitches, No. 10 pitch 9-21 parts wherein, No. 60 pitch 23-33 parts.

Described overlay film layer can be aluminium foil, plastic sheeting, barrier paper or fine sand.

Also contain inorganic reinforcer or organic reinforcing agent in the described immersion oil bed of material.

The preparation technology of this elastomer modified asphalt waterproof roll is characterized in that step is as follows:

Step 1 adds pitch in stirred vessel, carry out 2 hours thermal dehydrations under 185 ℃ of-190 ℃ of temperature.

Step 2 adds residual oil and stirred 1 hour in stirred vessel.

Step 3 adds SBS glue and stirred 1 hour in stirred vessel.

Step 4 is reduced to 165 ℃ with temperature in the stirred vessel.

Step 5, adding EPDM rubber powder, butyl rubber powder, French chalk stir in stirred vessel, and immersion cell is gone in the immersion oil materials flow of making.

Step 6 is launched mylar to put into immersion cell, carries out the immersion oil coating.

Step 7, the thickness of control immersion oil coating layer, cooling.

Step 8, overlay film curls, packs, puts in storage.

In the described step 5, in the immersion oil material, add reinforcing agent while stirring and stir.

Described EPDM rubber powder has another name called ethylene-propylene diene copolymer, is called for short second third glue, English name: Ethylene propylene Rubber, and synthetic by ethene and copolymerization of propylene, and on the EP main chain, import the 3rd composition that two strands is arranged on a small quantity.

The Chinese of described SBS is: styrene butadiene styrene block copolymer (SBS).

Residual oil: English name residual oil is with the residual oil of crude oil through the decompression distillation gained.

Beneficial effect of the present invention is as follows.

1, hardness, elasticity raising, outward appearance light, smooth surface, attractive in appearance behind the composition of increase rubber.

2, the unparalleled key of ethylene propylene diene rubber (EPDM) molecular structure main chain, be Eat and, so more stable, product is difficult for rupturing.

3, the high-and low-temperature resistance performance is good, can spend under 140 degree-25 and use.

4, owing to the increase of rubber constituent has improved product acid and alkali resistance, salt, performance such as corrosion-resistant.

5, reduced the consumption of SBS in the formula for a product, compound per ton reduces by 1100 yuan.

The experimental data contrast

Project	Example one of the present invention	Example two of the present invention	Lab scale of the present invention	Pilot scale of the present invention	The present invention goes into operation
						Impermeability/0.3MPa/30min	Waterproof	Waterproof	Waterproof	Waterproof	Waterproof
Heat resistance/105 ℃	There are not trickling, drippage	There are not trickling, drippage	There are not trickling, drippage	There are not trickling, drippage	There are not trickling, drippage
						Pulling force/(N/50mm) 〉=	800	815	850	845	870
Elongation per unit length/% 〉=	40	45	50	53	52
						Tearing strength/N 〉=	350	350	365	368	367
Low temperature flexibility/℃	-25 ℃ flawless	-25 ℃ flawless	-30 ℃ flawless	-30 ℃ flawless	-30 ℃ flawless

High-and low-temperature resistance performance range of the present invention is wide, good springiness, and hardness height, product be not yielding to be suitable for waterproofings such as the roofing of the industry of south, northern various grades and civilian construction, underground, bridge, expressway, swimming pool.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is technological process of production figure of the present invention.

The specific embodiment

10# pitch 9-21 part;

60# pitch 23-33 part;

Residual oil 12-22 part;

EPDM rubber powder 9-19 part;

Butyl rubber powder 2-7 part;

French chalk 11-21 part;

SBS glue 5.6-10.6 part;

Also can contain conventional inorganic reinforcer or organic reinforcing agents such as carbon black in the described immersion oil bed of material.

Embodiment 1, and this elastomer modified asphalt waterproof roll comprises mylar, the immersion oil bed of material and overlay film layer, and it is as follows that the material of the described immersion oil bed of material is pressed proportion by weight:

16 parts of 10# pitches;

28 parts of 60# pitches;

14 parts in residual oil;

14 parts of EPDM rubber powders;

2 parts of butyl rubber powders;

16 parts of French chalk;

5.6 parts in SBS glue;

Also can contain inorganic reinforcer or organic reinforcing agents such as carbon black in the described immersion oil bed of material.

Embodiment 2, and this elastomer modified asphalt waterproof roll comprises mylar, the immersion oil bed of material and overlay film layer, and it is as follows that the material of the described immersion oil bed of material is pressed proportion by weight:

12 parts of 10# pitches;

30 parts of 60# pitches;

13 parts in residual oil;

12 parts of EPDM rubber powders;

4 parts of butyl rubber powders;

13 parts of French chalk;

7 parts in SBS glue;

Embodiment 3, and this elastomer modified asphalt waterproof roll comprises mylar, the immersion oil bed of material and overlay film layer, and it is as follows that the material of the described immersion oil bed of material is pressed proportion by weight:

9 parts of 10# pitches;

23 parts of 60# pitches;

12 parts in residual oil;

9 parts of EPDM rubber powders;

2 parts of butyl rubber powders;

11 parts of French chalk;

5.6 parts in SBS glue;

Embodiment 4, and this elastomer modified asphalt waterproof roll comprises mylar, the immersion oil bed of material and overlay film layer, and it is as follows that the material of the described immersion oil bed of material is pressed proportion by weight:

21 parts of 10# pitches;

33 parts of 60# pitches;

22 parts in residual oil;

19 parts of EPDM rubber powders;

7 parts of butyl rubber powders;

21 parts of French chalk;

10.6 parts in SBS glue.

The production stage of elastomer modified asphalt waterproof roll is as follows among the foregoing description 1-4:

Step 1, pitch is thermal dehydration 2 hours under 185 degree-190 degree.

Step 2 adds residual oil and stirred 1 hour.

Step 3, the back that stirs add SBS glue and stirred 1 hour.

Step 4, the back temperature that stirs drops to 165 degree.

Step 5 adds EPDM rubber powder, butyl rubber powder, French chalk, continues to stir while stirring to add reinforcing agent, and the inflow immersion cell stirs.

Step 6 launches to put into the immersion cell immersion oil with mylar.

Step 7, the thickness of the control immersion oil bed of material, cooling.

Step 8, overlay film curls, packs, puts in storage.

Claims

1. an elastomer modified asphalt waterproof roll comprises mylar, the immersion oil bed of material and overlay film layer, and it is characterized in that: it is as follows that the material of the described immersion oil bed of material is pressed proportion by weight:

Pitch 32-54 part;

Residual oil 12-22 part;

EPDM rubber powder 9-19 part;

Butyl rubber powder 2-7 part;

French chalk 11-21 part;

SBS glue 5.6-10.6 part.

2. elastomer modified asphalt waterproof roll according to claim 1 is characterized in that: described pitch is the mixture of 10# pitch and 60# pitch, 10# pitch 9-21 part wherein, 60# pitch 23-33 part.

3. elastomer modified asphalt waterproof roll according to claim 1 and 2 is characterized in that: described overlay film layer is aluminium foil, plastic sheeting, barrier paper or fine sand.

4. elastomer modified asphalt waterproof roll according to claim 3 is characterized in that: also contain inorganic reinforcer or organic reinforcing agent in the described immersion oil bed of material.

5. preparation technology as elastomer modified asphalt waterproof roll as described in claim 1 or 3 is characterized in that step is as follows:

Step 1 adds pitch in stirred vessel, carry out 2 hours thermal dehydrations under 185 ℃ of-190 ℃ of temperature;

Step 2 adds residual oil and stirred 1 hour in stirred vessel;

Step 3 adds SBS glue and stirred 1 hour in stirred vessel;

Step 4 is reduced to 165 ℃ with temperature in the stirred vessel;

Step 5, adding EPDM rubber powder, butyl rubber powder, French chalk stir in stirred vessel, and immersion cell is gone in the immersion oil materials flow of making;

Step 6 is launched mylar to put into immersion cell, carries out the immersion oil coating;

Step 7, the thickness of control immersion oil coating layer, cooling;

Step 8, overlay film curls, packs, puts in storage.

6. the preparation technology of elastomer modified asphalt waterproof roll according to claim 5 is characterized in that: in the described step 5, add reinforcing agent while stirring and stir in the immersion oil material.