CN104672736A - ECB waterstop strip and preparation method thereof - Google Patents
ECB waterstop strip and preparation method thereof Download PDFInfo
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- CN104672736A CN104672736A CN201310615509.2A CN201310615509A CN104672736A CN 104672736 A CN104672736 A CN 104672736A CN 201310615509 A CN201310615509 A CN 201310615509A CN 104672736 A CN104672736 A CN 104672736A
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Abstract
The invention discloses an ECB waterstop strip and a preparation method thereof. The ECB waterstop strip is composed of the following raw materials in parts by mass: 100 parts of ECB, 40-80 parts of composite reinforcing agent, 1-8 parts of vulcanizing agent and 1-3 parts of vulcanization accelerator. The preparation method comprises the following steps: compounding, vulcanizing, molding and the like. The ECB waterstop strip has the characteristics of high tensile strength, high aging resistance, high corrosion resistance, lower price than the rubber waterstop strip and the like, and is suitable for capital construction engineering, underground installation, tunnels, sewage treatment plants, water conservancy, subways and the like.
Description
Technical field
The present invention relates to a kind of ECB waterstop and preparation method thereof.
Background technology
Along with the quickening of urbanization process, traffic congestion, environmental pollution and energy dilemma have become current problem demanding prompt solution.Ground railway capable underground traffic process can be avoided the crowded of urban pavement and make full use of outside the underground space, also has fast, advantage easily, has become the prefered method of big and medium-sized cities solving urban traffic blocking problem.
In the construction process of some underground workss, due to can not continuous placing be carried out, or starve the reasons such as the concrete member caused expands with heat and contract with cold due to the distortion of ground and the numbering of temperature, construction joint, settlement joint, movement joint need be left, need that at these gap places sealing is installed and bring the seepage preventing water.Meanwhile, domestic and international metro construction mainly adopts shield technique to construct, and shield tunnel is spliced by paying section of jurisdiction in advance, and segment joint uses rubber packing material.Rubber packing material utilizes the snappiness of rubber and the feature of compression set, produces elastic deformation, thus play effective fit sealing under various load, prevents the effect that Architectural Construction is seeped water, leaked.The ability that ECB waterstop is suitable for segment joint distortion is comparatively strong, and the ageing-resistant performance of material is good, has been widely used in the seam waterproof of the piecing assembly such as railway, subway underground works as a kind of rubber packing material of excellent property.But, in recent years, in some underground construction processes, to the requirement of the tensile strength of waterstop etc., more and more higher.Common rubber fastening band cannot meet the requirement of high-speed railway to its performance.Add that the underground condition in some constructions is complicated, stronger to the corrosive nature of rubber fastening band, make rubber fastening band in the present context performance have and decline significantly, greatly have impact on its hermetic seal performance, cause the leaking of Architectural Construction, deep water thus cause sealing unsuccessfully.
Summary of the invention
The object of the present invention is to provide a kind of ECB waterstop and preparation method thereof, this waterstop has excellent mechanical property, price is low, is the half of rubber fastening band price.
To achieve these goals, technical scheme of the present invention is: a kind of ECB waterstop and preparation method thereof, it is characterized in that it is made up of ECB, composite reinforcing agent, sulphur, vulcanization accelerator, the massfraction of each raw material is: ECB 100 parts, composite reinforcing agent 40 ~ 80 parts, vulcanizing agent 1 ~ 8 part, vulcanization accelerator 1 ~ 3 part.
Described ECB is ethene-vinyl acetate pitch multipolymer.
Described composite reinforcing agent is carbon black: mica powder=1:1.
Described vulcanization leveller is zinc oxide.
Described vulcanizing agent is sulphur.
Described vulcanization accelerator is Methasam.
The preparation method of above-mentioned a kind of snappiness sealing, is characterized in that carrying out as follows:
(1) mass fraction of each raw material is: ECB 100 parts, composite reinforcing agent 40 ~ 80 parts, vulcanizing agent 1 ~ 8 part, vulcanization accelerator 1 ~ 3 part;
(2) take raw material according to the above ratio, the banburying in Banbury mixer by ECB and composite reinforcing agent, keep temperature to be 150 ± 5 DEG C, batch mixing 5-15 minute;
(3) then in Banbury mixer, add vulcanizing agent, vulcanization accelerator successively, keep temperature to be 150 ± 5, batch mixing 5 ~ 10 minutes, then discharging, is pressed into thin slice through mill;
(4) thin slice is put into mould, in vulcanizer, carry out sulfuration, curing temperature is 160 ~ 180 DEG C, and sulfide stress is 10 ~ 15MPa, and curing time is 15 ~ 20 minutes, and sulfuration terminates to be cooled to room temperature, takes out cross-linked rubber, obtained ECB waterstop.
Beneficial effect of the present invention is as follows:
1. the present invention is by being undertaken mixing by composite reinforcing agent and ECB, forms composite structure, to improve the elastomeric stopping property of ECB, thus effectively improves the stagnant water effect of waterstop.
2. the present invention selects composite reinforcing agent and ECB blending and modifying, thus makes polymkeric substance have high strength and snappiness, and price is the half of General Purpose Rubber waterstop.
Embodiment
In order to the present invention is understood at the better end, further illustrate content of the present invention below in conjunction with embodiment.
Embodiment 1:
A preparation method for ECB waterstop, carries out as follows:
1. the mass fraction of each raw material is: ECB 100 parts, composite reinforcing agent 40 parts, vulcanizing agent 1 part, vulcanization accelerator 1 part;
2. take raw material according to the above ratio, by ECB stripping and slicing, mixing in Banbury mixer with composite reinforcing agent, keep temperature to be 155 DEG C, mixing 5 minutes;
3. then in Banbury mixer, add vulcanizing agent and vulcanization accelerator successively, keep temperature to be 155 DEG C, continue mixing 8 minutes, then discharging, be pressed into thin slice through two roller mill;
4. above-mentioned thin slice is put into mould, in vulcanizing press, carry out sulfuration, curing temperature is 160 DEG C, and sulfide stress is 10MPa, and curing time is 20 minutes, is cooled to room temperature after sulfuration terminates, and takes out cross-linked rubber, namely obtains ECB waterstop.
Embodiment 2:
A preparation method for ECB waterstop, carries out as follows:
1. the mass fraction of each raw material is: ECB100 part, composite reinforcing agent 80 parts, vulcanizing agent 8 parts, vulcanization accelerator 2 parts;
2. take raw material according to the above ratio, by ECB stripping and slicing, mixing in Banbury mixer with composite reinforcing agent, keep temperature to be 135 DEG C, mixing 5 minutes;
3. then in Banbury mixer, add vulcanizing agent, vulcanization accelerator successively, keep temperature to be 135 DEG C, continue mixing 8 minutes, then discharging, be pressed into thin slice through two roller mill;
4. above-mentioned thin slice is put into mould, in vulcanizing press, carry out sulfuration, curing temperature is 160 DEG C, and sulfide stress is 13MPa, and curing time is 20 minutes, is cooled to room temperature after sulfuration terminates, and takes out cross-linked rubber, namely obtains ECB waterstop.
Embodiment 3:
A preparation method for ECB waterstop, carries out as follows:
1. the mass fraction of each raw material is: ECB 100 parts, composite reinforcing agent 80 parts, vulcanizing agent 4 parts, vulcanization accelerator 3 parts;
2. take raw material according to the above ratio, by ECB stripping and slicing, mixing in Banbury mixer with composite reinforcing agent, keep temperature to be 145 DEG C, mixing 5 minutes;
3. then in Banbury mixer, add vulcanizing agent, vulcanization accelerator successively, keep temperature to be 155 DEG C, continue mixing 8 minutes, then discharging, be pressed into thin slice through two roller mill;
4. above-mentioned thin slice is put into mould, in vulcanizing press, carry out sulfuration, curing temperature is 160 DEG C, and sulfide stress is 13MPa, and curing time is 20 minutes, is cooled to room temperature after sulfuration terminates, and takes out cross-linked rubber, namely obtains ECB waterstop.
Embodiment 4:
A preparation method for ECB waterstop, carries out as follows:
1. the mass fraction of each raw material is: ECB100 part, composite reinforcing agent 80 parts, vulcanizing agent 4 parts, vulcanization accelerator 2 parts;
2. take raw material according to the above ratio, by ECB stripping and slicing, mixing in Banbury mixer with composite reinforcing agent, keep temperature to be 135 DEG C, mixing 5 minutes;
3. then in Banbury mixer, add vulcanizing agent, vulcanization accelerator successively, keep temperature to be 135 DEG C, continue mixing 8 minutes, then discharging, be pressed into thin slice through two roller mill;
4. above-mentioned thin slice is put into mould, in vulcanizing press, carry out sulfuration, curing temperature is 160 DEG C, and sulfide stress is 13MPa, and curing time is 20 minutes, is cooled to room temperature after sulfuration terminates, and takes out cross-linked rubber, namely obtains ECB waterstop.
Performance comparision table
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tensile strength Mpa | 18.05 | 19.42 | 21.67 | 23.56 |
| Elongation at break % | 382 | 450 | 521 | 589 |
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. an ECB waterstop, it is characterized in that being made up of ECB, composite reinforcing agent, sulphur, vulcanization accelerator, the massfraction of each raw material is: ECB 100 parts, composite reinforcing agent 40 ~ 80 parts, vulcanizing agent 1 ~ 8 part, vulcanization accelerator 1 ~ 3 part.
2. require described a kind of ECB waterstop according to right 1, it is characterized in that: described composite reinforcing agent is carbon black: mica powder=1:1.
3. require described a kind of ECB waterstop according to right 1, it is characterized in that, described ECB is ethene-vinyl acetate pitch multipolymer.
4. require the preparation method of described a kind of snappiness waterstop according to right 1, it is characterized in that, carry out as follows:
1. the mass fraction of each raw material is: ECB 100 parts, composite reinforcing agent 40 ~ 80 parts, vulcanizing agent 1 ~ 8 part, vulcanization accelerator 1 ~ 3 part;
2. take raw material according to the above ratio, the banburying in Banbury mixer by ECB and composite reinforcing agent, keep temperature to be 150 ± 5 DEG C, batch mixing 5-15 minute;
3. then in Banbury mixer, add vulcanizing agent, vulcanization accelerator successively, keep temperature to be 160 ± 5, batch mixing 5 ~ 10 minutes, then discharging, is pressed into thin slice through mill;
4. thin slice is put into mould, in vulcanizer, carry out sulfuration, curing temperature is 160 ~ 180 DEG C, and sulfide stress is 10 ~ 15MPa, and curing time is 15 ~ 20 minutes, and sulfuration terminates to be cooled to room temperature, takes out cross-linked rubber, obtained ECB waterstop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615509.2A CN104672736A (en) | 2013-11-28 | 2013-11-28 | ECB waterstop strip and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615509.2A CN104672736A (en) | 2013-11-28 | 2013-11-28 | ECB waterstop strip and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104672736A true CN104672736A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310615509.2A Pending CN104672736A (en) | 2013-11-28 | 2013-11-28 | ECB waterstop strip and preparation method thereof |
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|---|---|
| CN (1) | CN104672736A (en) |
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2013
- 2013-11-28 CN CN201310615509.2A patent/CN104672736A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |