CN1919956A - Highly effective self-adhesive composite flashing and manufacture method thereof - Google Patents
Highly effective self-adhesive composite flashing and manufacture method thereof Download PDFInfo
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- CN1919956A CN1919956A CN 200610015581 CN200610015581A CN1919956A CN 1919956 A CN1919956 A CN 1919956A CN 200610015581 CN200610015581 CN 200610015581 CN 200610015581 A CN200610015581 A CN 200610015581A CN 1919956 A CN1919956 A CN 1919956A
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Abstract
The invention discloses a self-adhesive composites flashing(LECB), comprising 55-65 parts polyvinyl resin, 5-10 parts thermoplastic elastomer SBS and 30-45 parts binding material. The LECB has strong binding power, and good self-cure function. The flashing and basal layer have good bonding property, and they can avoid infiltration. The invention can be used in underground, road, harbour, and culverts.
Description
Technical field
The invention belongs to the water-proof material preparation field, relate to a kind of tensile strength greater than 14Mpa, elongation greater than 500% " self-adhesion compound (ethene pitch multipolymer) waterproof sheet, be called for short LECB waterproof sheet and preparation method thereof.
Background technology
Waterproof roll is mainly used in the waterproofing works such as subway, road, port and pier, culvert, Ba Chi and underground heavy construction.The main raw material(s) that is used to make waterproof sheet has modifying asphalt, modified rubber and single synthetic resins, as polyolefin resines such as polyvinyl chloride, polyethylene, waterproof sheet with above material preparation, its elasticity is little, elongation is low, tensile strength is low, weather resistance, lower temperature resistance are poor, has caused the water leakage extreme difference of coiled material.In the structure of existing waterproof sheet or cold bonding knot (promptly using various tackiness agent) polymer coiled material; Or the polymer modified bituminous waterproof sheet material of thermo-compression bonding.
At present, the main plastics waterproofing plate of domestic production has multiple: for example have employing SBS, SBR etc. to be to be equipped with properties-correcting agent tackifier, softening agent etc. and to be developed into self-adhesive rubber asphalt waterproofing coiled material; Also useful polyethylene sheets-SBS modified asphalt waterproof coiled material is also studied with the waterproof system of bonding, sealing; The technical matters that adopts super-high relative molecular weight polyvinyl chloride (UHMWPVC) and petroleum pitch blending and modifying compound system is also arranged.But single ECB material exists some problems: 1, directly do not bond with buildings and cement.2, scurry water easily after laying the ECB waterproof roll, scurry the water source that is difficult for finding scurrying water behind the water or the like defective.
Although above-mentionedly introduced all waterproof rolls, owing to rerum natura, structural distortion, the construction of water-proof material and protect reasons such as improper, leakage of building remains the Universal Problems on puzzlement building circle.
Summary of the invention
The shortcoming that the objective of the invention is to overcome prior art is with not enough, provide a kind of tensile strength greater than 14Mpa, elongation greater than 500% " the compound LECB of self-adhesion (ethene pitch multipolymer) waterproof sheet.
Another object of the present invention is to provide the preparation method of the compound LECB waterproof sheet of a kind of self-adhesion.
Technical scheme of the present invention is as follows:
A kind of highly effective self-adhesive composite water-proof sheet material, it is characterized in that: it is made up of polyethylene, thermoplastic elastomer SBS and adhesive substantially.Preferably contain 55～65 parts of parts by weight polyethylene, 5～10 parts of SBS, adhesive 10-45 part.
Wherein said SBS is the styrene-butadiene-styrene terpolymer.Its proportion of composing is that S/B is that the star-like and linear structure of 30/70～50/50 (weight) all can.
Polyethylene of the present invention comprises: ldpe resin (LDPE), high-density polyethylene resin (HDPE), linear low density polyethylene resin (LLDPE).
Highly effective self-adhesive composite water-proof sheet material of the present invention can also contain 2-15 part chemical assistant as required and comprise: photostabilizer, oxidation inhibitor, lubricant.
Described photostabilizer comprises UV light absorber UV531;
Described oxidation inhibitor comprises antioxidant 1010;
Described lubricant comprises stearic acid, Zinic stearas;
Preferred chemical assistant is 30% ultraviolet absorbent UV-531,30% antioxidant 1010, stearic acid of 40% or the like.
The preferred highly effective self-adhesive composite water-proof of the present invention sheet material is made up of polyethylene, SBS, adhesive and chemical assistant.The wherein wt portion rate is as follows:
55～65 parts of polyethylene
30～45 parts of adhesive
1～15 part of chemical assistant
5～10 parts of thermoplastic elastomer SBSs.
Adhesive of the present invention is made up of following materials based on weight:
70～80 parts of modifying asphalts
5～15 parts in mineral oil
5～10 parts of thermoplastic elastomer SBSs.
Mineral oil of the present invention is to be rich in aromatic hydrocarbons or and the high point petroleum fraction of naphthenic hydrocarbon.
The preparation method of highly effective self-adhesive composite water-proof sheet material of the present invention, be modifying asphalt and mineral oil to be mixed under 180～190 ℃ temperature by said ratio, obtain even adhesive, then with certain thickness adhesive heat seal to being base-material with the polyvinyl resin that does not add chemical assistant, be aided with on thermoplastic elastomer SBS's the top layer, make self-adhesive composite flashing.
The preparation method of highly effective self-adhesive composite water-proof sheet material of the present invention, also can be according to the needs of actual engineering: modifying asphalt and mineral oil are mixed under 180～190 ℃ temperature, obtain even adhesive, be base-material with certain thickness adhesive heat seal to polyvinyl resin then with the interpolation chemical assistant, be aided with on the top layer of thermoplastic elastomer SBS, chemical assistant, make self-adhesive composite flashing.
The present invention has carried out a series of experiments and has comprised in the selecting for use of material, Formula Design: (1), the fixing consumption of colour batch, auxiliary agent and weighting agent, and select for use HDPE, LDPE, EVA and LLDPE raw material to carry out extrusion calendaring experiment, test performance data respectively.(2), fixedly raw material, colour batch and weighting agent, the kind and the consumption that change auxiliary agent carry out extrusion calendaring experiment, test performance data.(3), in order to reduce cost, the present invention adopts the kind and the consumption that change weighting agent to carry out extrusion calendaring experiment, test performance data.Obtain the prescription of cost performance the best.
The waterproof sheet of the highly effective self-adhesive composite water-proof sheet material (LECB) of the present invention development and the ECB that uses at present is at the moulding of choices of raw materials, Formula Design, LECB base material, the composition of self-adhesive thing (self-adhesive thing consist of thermoplastic elastomer SBS, modifying asphalt and mineral oil), make aspect such as the compound LECB waterproof sheet of self-adhesion and carried out research relatively, the result proves:
Highly effective self-adhesive composite water-proof sheet material (LECB) has kept can also adapting to self-adhesion and laying in advance outside the strong mechanical performance and corrosion resistance characteristic and anti-penetration of LECB sheet material, the requirement of wet bonding construction technology.The characteristics of this material: cohesive force is strong, combines together behind sheet material and the sheet material overlap joint, and the shearing of lap-joint, stripping strength are all greater than mother metal self.Have unique " self-healing " function, can heal voluntarily during construction.Sheet material and basic unit have good adhesive property, make the high molecular polymer and the cement-hydrate formation IPN of matrix material saturating mutually, in case the caused seepage of local damage occurs, only be confined in the breakthrough scope, therefore can prevent effectively that " scurrying water " phenomenon from appearring in sheet material, avoid waterproof layer to lose efficacy in whole or in part.
The salient features of the compound LECB waterproof sheet of self-adhesion:
| Sequence number | Project | Index |
| 1 | Tensile strength Mpa 〉= | 14 |
| 2 | Elongation at break % 〉= | 500 |
| 3 | Tear strength N/mm 〉= | 60 |
| 4 | Cutting performance (sheet material and aluminium sheet) N/mm 〉= | 5.0 or adhesive face ruptures outward |
| 5 | Stripping performance (sheet material and binding agent) N/mm 〉= | 1.5 or adhesive face ruptures outward |
| 6 | Cutting performance (sheet material and sand-cement slurry bonding) N/mm 〉= | 6.0 or adhesive face ruptures outward |
| 7 | Stripping performance (sheet material and sand-cement slurry bonding) N/mm 〉= | 2.0 or adhesive face ruptures outward |
| 8 | Watertightness pressure 〉=0.3Mpa keeps 30min | Waterproof |
| 9 | 40 ℃ * 168h of ozone ageing | Flawless |
| 10 | 10％Ca(0H) 2Normal temperature 168h breaking tenacity conservation rate % 〉=elongation at break conservation rate % 〉= | 80 90 |
| 11 | Flexibility (low-temperature bending) | -35 ℃ of flawlesses |
Embodiment
The present invention will be further described below in conjunction with embodiment.
Modifying asphalt is 100# among following each embodiment, and adopting SBS is the YH792 type, and mineral oil is commercially available; Linear low density polyethylene resin is the LL1002kw type, and chemical assistant is 30% ultraviolet absorbent UV-531,30% antioxidant 1010,40% stearic acid.
Embodiment 1
1, the preparation of LECB sheet material: with linear low density polyethylene resin 85kg is base-material, is aided with thermoplastic elastomer SBS 10kg, makes the LECB sheet material.
2, the preparation of adhesive: at first take by weighing modifying asphalt 80kg and be heated to 180 ℃, dewatered 10 minutes, add mineral oil and the thermoplastic elastomer SBS 10kg of 10kg then, constant temperature also stirs, and the uniform mixture that makes modifying asphalt and mineral oil is standby.
3, the preparation of the compound LECB waterproof sheet of self-adhesion: with the modifying asphalt that makes and the uniform mixture of mineral oil, be compounded on the LECB sheet surface, be the compound LECB waterproof sheet of self-adhesion.
Embodiment 2
1, the preparation of LECB sheet material: with high-density polyethylene resin 85kg is base-material, is aided with thermoplastic elastomer SBS 10kg, and chemical assistant (30% ultraviolet absorbent UV-531) 5kg, makes the LECB sheet material.
2, the preparation of adhesive: at first take by weighing modifying asphalt 80kg and be heated to 180 ℃, dewatered 10 minutes, add mineral oil and the thermoplastic elastomer SBS 10kg of 10kg then, constant temperature also stirs, and the uniform mixture that makes modifying asphalt and mineral oil is standby.
3, identical with embodiment 1.
Embodiment 3
1, the preparation of LECB sheet material: 80kg is a base-material with linear lag polyvinyl resin, is aided with thermoplastic elastomer SBS 15kg, and chemical assistant (30% antioxidant 1010) 5kg, makes the LECB sheet material.
2, the preparation of adhesive: at first take by weighing modifying asphalt 80kg and be heated to 180 ℃, dewatered 10 minutes, add mineral oil and the thermoplastic elastomer SBS 10kg of 10kg then, constant temperature also stirs, and the uniform mixture that makes modifying asphalt and mineral oil is standby.
3, identical with embodiment 1.
Embodiment 4
1, the preparation of LECB sheet material: with linear low density polyethylene resin 85kg is base-material, is aided with thermoplastic elastomer SBS 10kg, and chemical assistant (40% stearic acid) 5kg, makes the LECB sheet material.
2, the preparation of adhesive: at first take by weighing modifying asphalt 85kg and be heated to 180 ℃, dewatered 10 minutes, add mineral oil and the thermoplastic elastomer SBS 5kg of 10kg then, constant temperature also stirs, and the uniform mixture that makes modifying asphalt and mineral oil is standby.
3, identical with embodiment 1.
The performance comparison sheet
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Tensile strength MPa | 16.2 | 19.4 | 15.5 | 15.8 |
| Elongation at break % | 510 | 603 | 698 | 578 |
Construction embodiment 5
The compound LECB waterproof sheet of self-adhesion alignment fiducials line is spread out, during next secondary coiled material of overlap joint paving, the interleaving paper that will be positioned at the volume layer overlapping part of lower floor is uncovered, and upper strata volume layer is aimed at flat the applying of an overlap joint control line sticking on down on the layer coiled material, the roll extrusion excluding air is pasted firmly.When for splicing, after paving is finished, the sealing coat in the joint cover scope is uncovered, cover fillet to be aimed at flat the applying of control line stick on the seam, the roll extrusion excluding air is pasted firmly.Throw off sealing coat before the base arrangement construction.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (9)
1, a kind of highly effective self-adhesive composite water-proof sheet material is characterized in that: be made up of polyethylene, thermoplastic elastomer SBS and adhesive substantially, wherein said SBS is the styrene-butadiene-styrene terpolymer.
2, require described waterproof sheet as right 1, it is characterized in that containing 55～65 parts of parts by weight polyethylene; 5～10 parts of thermoplastic elastomer SBSs, 30～45 parts of adhesive.
3, as right 1 or 2 described waterproof sheets, it is characterized in that also containing 2～15 parts of chemical assistants.
4, a kind of highly effective self-adhesive composite water-proof sheet material is characterized in that being made up of following materials based on weight:
55～65 parts of polyethylene
30～45 parts of adhesive
1～15 part of chemical assistant
5～10 parts of thermoplastic elastomer SBSs.
5,, it is characterized in that described chemical assistant is photostabilizer, oxidation inhibitor or lubricant as right 3 or 4 described waterproof sheets.
6,, it is characterized in that described adhesive is made up of following materials based on weight as claim 1-2 or 4 described waterproof sheets:
70～80 parts of modifying asphalts
5～15 parts in mineral oil
5～10 parts of thermoplastic elastomer SBSs.
7, waterproof sheet as claimed in claim 6 is characterized in that described mineral oil is the high point petroleum fraction that contains aromatic hydrocarbons and naphthenic hydrocarbon.
8, as the described waterproof sheet of right 1-2, it is characterized in that described thermoplastic elastomer SBS, proportion of composing is that S/B is 30/70～50/50 (weight).
9, a kind of preparation method of highly effective self-adhesive composite water-proof sheet material, it is characterized in that, by said ratio modifying asphalt and mineral oil are mixed under 180～190 ℃ of temperature, obtain even adhesive, then with certain thickness adhesive heat seal to being base-material with the polyvinyl resin, be aided with on the top layer of thermoplastic elastomer SBS, chemical assistant, make self-adhesive composite flashing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100155811A CN100494304C (en) | 2006-09-05 | 2006-09-05 | Highly effective self-adhesive composite water-proof sheet and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100155811A CN100494304C (en) | 2006-09-05 | 2006-09-05 | Highly effective self-adhesive composite water-proof sheet and manufacture method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1919956A true CN1919956A (en) | 2007-02-28 |
| CN100494304C CN100494304C (en) | 2009-06-03 |
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| CNB2006100155811A Expired - Fee Related CN100494304C (en) | 2006-09-05 | 2006-09-05 | Highly effective self-adhesive composite water-proof sheet and manufacture method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694113B (en) * | 2009-10-23 | 2011-06-08 | 衡水中铁建土工材料制造有限公司 | Linear low-density polyethylene waterproof board |
| CN101575486B (en) * | 2008-05-09 | 2013-07-17 | 李大雨 | Solvent-free adhesive, waterproof sheet and manufacturing method of the waterproof sheet and construction method using the waterproof sheet |
| CN104650436A (en) * | 2014-11-27 | 2015-05-27 | 新疆可耐防水建材有限责任公司 | Waterproof high-polymer sheet production process |
-
2006
- 2006-09-05 CN CNB2006100155811A patent/CN100494304C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575486B (en) * | 2008-05-09 | 2013-07-17 | 李大雨 | Solvent-free adhesive, waterproof sheet and manufacturing method of the waterproof sheet and construction method using the waterproof sheet |
| CN101694113B (en) * | 2009-10-23 | 2011-06-08 | 衡水中铁建土工材料制造有限公司 | Linear low-density polyethylene waterproof board |
| CN104650436A (en) * | 2014-11-27 | 2015-05-27 | 新疆可耐防水建材有限责任公司 | Waterproof high-polymer sheet production process |
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| Publication number | Publication date |
|---|---|
| CN100494304C (en) | 2009-06-03 |
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