CN101481467A - Preparations of conductive sponge and conductive latex solution - Google Patents
Preparations of conductive sponge and conductive latex solution Download PDFInfo
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- CN101481467A CN101481467A CNA2009101053058A CN200910105305A CN101481467A CN 101481467 A CN101481467 A CN 101481467A CN A2009101053058 A CNA2009101053058 A CN A2009101053058A CN 200910105305 A CN200910105305 A CN 200910105305A CN 101481467 A CN101481467 A CN 101481467A
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Abstract
The invention relates to a preparation method for conductive sponge and conductive emulsion solution. The preparation method for the conductive sponge comprises steps: firstly, polyurethane sponge is dipped in the conductive emulsion solution for 17-23 minutes; secondly, shaking drying treatment is carried out; thirdly, drying treatment is carried out; fourthly, the dried polyurethane sponge is placed for 48 hours in the room temperature ventilation environment. The preparation method of the conductive emulsion solution is that firstly, urethane resin emulsion solution with 25% contents is preformed; secondly, conductive carbon black is ground into carbon paste; finally, the carbon paste is added into the urethane resin emulsion solution with 25% contents, added with water borne wetting-dispersing agent and stirred in high speed. The conductive sponge prepared by the technical proposal of the invention has fine and uniform cells, and good compressive strength. The sponge materials can not be corroded in the dipping and drying process. The better rebound resilience of the sponge is reserved. The conductive sponge does not fall crumbs, does not bring about pollution to devices, does not volatilize solvents to pollute environment, has the advantages of environmental protection, innocuity, odorlessness and no three wastes generation.
Description
Technical field
Technical solution of the present invention relates to the preparation method of a kind of sponge and latex solution, refers to the preparation method of a kind of aqueous solution soaking formula conductive sponge and conduction latex solution especially.
Background technology
Have in the prior art by the mode of static inhibitor being added in the pearl foam and make anti-electrostatic pearl foam, still, the abscess of this kind anti-electrostatic pearl silk floss is very big, and compressive strength is low, and rebound resilience is poor, its surface resistivity and volume resistance instability, and resistance is bigger, is 10
8-10
11Ω can not regulate according to customer requirement, and the anti-electrostatic timeliness is short, only has 3-6 month, and it is bigger that antistatic performance is influenced by the environment humidity.
Then have by adding static inhibitor and in sponge or with the mode of antistatic agent immersion sponge, make the anti-electrostatic sponge, but, though this kind anti-electrostatic sponge has the sponge characteristic, it is very big to solve the continuous abscess that exists of anti-electrostatic pearl, and compressive strength is low, the problem of rebound resilience difference, but it is similar to anti-electrostatic pearl silk floss, still have surface resistivity and volume resistance instability, resistance is bigger, is 10
8-10
11Ω can not regulate according to customer requirement, and the anti-electrostatic timeliness is short, only has 3-6 month, and antistatic performance is subjected to the environment humidity to influence bigger problem.
The conductive sponge that has recently had other mode to make again, it is by adding conductive agent or making by the mode of soaking sponge with oiliness and the inconsistent conduction latex solution of sponge in the raw material of preparation sponge, though but this kind conductive sponge excellent conductivity, the timeliness of anti-electrostatic is long, but in raw material, add the technology instability of conductive agent, quality product is relatively poor, makes that the abscess of conductive sponge is thick, and is inhomogeneous; And the incompatible conduction latex solution of use oiliness and sponge soaks the conductive sponge that forms, owing to adopt oil-based solvent, in drying course, can corrode sponge material, cause sponge compressive strength and rebound resilience relatively poor, evaporable solvent contamination environment is unfavorable for environmental protection, simultaneously because resin and sponge compatibility in oiliness and the inconsistent conduction latex solution of sponge are bad, poor adhesive force causes in use having the bits phenomenon and takes place, and will pollute device
Summary of the invention
Thick, inhomogeneous in order to solve the conductive sponge abscess that exists in the prior art, compression and rebound resilience are relatively poor, evaporable solvent contamination environment is unfavorable for environmental protection, and in use has bits, will pollute the problem of device, the invention provides a kind of preparation method of conductive sponge.
The present invention also provides a kind of preparation method of conducting electricity latex solution.
The preparation method of conductive sponge described in the technical solution of the present invention comprises step: the first step, with polyurethane sponge be dipped into the conduction latex solution in 17-23 minute; Second step, the described polyurethane sponge after will soaking dry processing; The 3rd step, the described polyurethane sponge after will drying are dried processing in 10 minutes under 115 ℃ of-125 ℃ of environment; The 4th step, the described polyurethane sponge that takes out after oven dry is handled were placed 45-50 hour under the room temperature ventilated environment.
According to the preferred technical solution of the present invention: the soak time in the described the first step is 20 minutes.
According to the preferred technical solution of the present invention: the bake out temperature of polyurethane sponge is 120 ℃ described in described the 3rd step.
According to the preferred technical solution of the present invention: polyurethane sponge was placed 48 hours under the room temperature ventilated environment described in described the 4th step.
The present invention also provides a kind of preparation method of conducting electricity latex solution, and the preparation method of described conduction latex solution comprises step: a step, will add pure water with the congener urethane resin emulsion hydrosol of described polyurethane sponge and be diluted to the urethane resin latex solution that content is 23%-27%; Two steps, conductive carbon black is ground to form carbon slurry; Three go on foot, described carbon slurry are added in the urethane resin latex solution that content is 23%-27% and adds the water-based wetting dispersing agent carry out high-speed stirring.
According to the preferred technical solution of the present invention: a described step is for to be diluted to content be 25% urethane resin latex solution with adding pure water with the congener urethane resin emulsion hydrosol of described polyurethane sponge.
According to the preferred technical solution of the present invention: conductive carbon black is described in described two steps: conductive carbon black is formed by the high chain-like structure of ghost described in described two steps, and structure particle diameter 17nm is than resistance 0.20 Ω.
According to the preferred technical solution of the present invention: the carbon slurry is 1:10 with the volume ratio that described urethane resin latex solution adds described in described three steps.
According to the preferred technical solution of the present invention: the water-based wetting dispersing agent is high-molecular block copolymer and silicone blend described in described three steps.
According to the preferred technical solution of the present invention: the mass ratio that described high-molecular block copolymer and described silicone blend add is: 1:9.
After comparing with existing technical scheme, useful effect of the present invention is: the conductive sponge that makes according to the present invention, abscess is fine and closely woven, and evenly compressive strength is good, can not corrode sponge material in soaking drying course, kept sponge rebound resilience preferably, strong adhesion does not fall bits, can not pollute device, simultaneously can the solvent flashing contaminate environment, be beneficial to environmental protection.
Description of drawings
Fig. 1. preparation method's schema of conductive sponge described in the preparation method of a kind of conductive sponge of the present invention and conduction latex solution;
Fig. 2. preparation method's schema of conduction latex solution described in the preparation method of a kind of conductive sponge of the present invention and conduction latex solution.
Embodiment
The present invention will be described below in conjunction with drawings and Examples:
The principle of the preparation conductive sponge that the present invention adopts is:
Select urethane resin emulsion hydrosol for use with urethane (PU) sponge same kind, the interpolation conductive agent is distributed to and makes its conduction in the urethane resin emulsion hydrosol, utilize macromolecular material similar compatibility principle, after containing the urethane resin latex oven dry of conductive agent, can be securely attached to the surface of open-cell polyurethane sponge, the inside and outside of the polyurethane sponge small urethane resin particles of just being conducted electricity coats like this, and sponge will become electro-conductive material.
Specifically see also preparation method's schema of conduction latex solution described in the preparation method of preparation method's schema of conductive sponge described in the preparation method of a kind of conductive sponge of Fig. 1 the present invention and conduction latex solution and a kind of conductive sponge of Fig. 2 the present invention and conduction latex solution.As shown in FIG., the preparation method of described conductive sponge comprises step.
The first, the immersion process of sponge, the urethane of different densities (PU) sponge is dipped in the water-based conduction latex solution compatible with sponge, soak time is 17-23 minute, is generally 20 minutes, makes the small urethane resin particles of conduction be attached to all surface of sponge fully.
The preparation method of described conduction latex solution comprises step: step 1, will add pure water with the congener urethane resin emulsion hydrosol of described polyurethane sponge and be diluted to the urethane resin emulsion hydrosol that content is 23%-27%, being diluted to content usually is 25% urethane resin emulsion hydrosol; Step 2, conductive carbon black ground make the carbon oar, wherein, described conductive carbon black is formed by the high chain-like structure of ghost, primary structure particle diameter 17nm, surface-area is big, dispersed high, owing to be that the reticulated structure that the wadding aggregate constitutes makes that the conductivity that itself has extra-high-speed, resistance are 0.20 Ω; Step 3, described carbon oar added in the urethane resin latex solution that content is 23%-27% and add the water-based wetting dispersing agent carry out high-speed stirring, promptly make the conduction latex solution.At this of particular note, in the described step 3, the mass ratio that described carbon oar and described urethane resin latex solution add is 1:10, and described water-based wetting dispersing agent is high-molecular block copolymer and silicone blend, and the mass ratio that described high-molecular block copolymer and described silicone blend add is: 1:9.
The second, the described polyurethane sponge after will soaking dries processing, and the unnecessary conduction latex solution that sponge is adsorbed is separated;
Three, the described polyurethane sponge after will drying is dried processing in 10 minutes under 115 ℃ of-125 ℃ of environment, and usually, bake out temperature is 120 ℃, so that the urethane resin particles crosslinking curing, and tightly attached to the surface of sponge.
Four, the described polyurethane sponge after the taking-up oven dry is handled is transferred at room temperature ventilation environment and is put 45-50 hour, places usually to get final product in 48 hours, so that the complete crosslinking curing of urethane (PU) resin particle.
Can make conductive sponge according to this method, then, can carry out post-treatment, conductive sponge is carried out the conductive sponge that slicing becomes different thickness by slicer it, also but vertical cut becomes the conductive sponge of different specification size, also can be processed into the shape conductive sponge that requires.
The present invention has following advantage:
One, among the preparation method of conductive sponge of the present invention, owing to be conduction latex solution immersion sponge, and through an amount of temperature oven dry crosslinking curing, so can not destroy original sponge good shockproof sound-absorbing and rebound performance by water-based and sponge compatibility, abscess is fine and closely woven evenly, and surface quality is good.Simultaneously, the conductive sponge that makes has excellent conducting performance, and surface resistivity and volume resistance are highly stable, and its resistance is generally 10
3-10
6Between the Ω, meet national anti-electrostatic standard-required.And, owing to the carbon black in the conductive sponge can not volatilize, so conduction anti-electrostatic timeliness is long, but permanent antistatic, antistatic performance is not influenced by the environment humidity.
What two, adopt among the preparation method of conductive sponge of the present invention is the compatible conduction latex solution of water-based and sponge, be different from oil-based solvent, in soaking drying course, can not corrode sponge material, kept the better rebound resilience of sponge, strong adhesion does not fall bits, can not pollute device, simultaneously can the solvent flashing contaminate environment, be beneficial to environmental protection.
Three, the conductive sponge that makes according to the preparation method of conductive sponge of the present invention is added the graphitized carbon black ratio and is obtained 10 by regulating
3-10
9Other sponges of the different conduction level of Ω, and anti-electrostatic PE Foam, anti-electrostatic sponge only are 10
8-10
10Ω, and will lose electrostatic-proof function behind the some months, environment also can influence its electroconductibility, is can not overcome anti-electrostatic PE Foam, anti-electrostatic sponge defective by the long-acting graphitized carbon black of evaporable and conductive sponge adopts, conducts electricity long-acting and stable;
Four, production technique is simple and direct, and production efficiency is higher, energy-conservation.
Above content be in conjunction with concrete optimal technical scheme to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the preparation method of a conductive sponge, it is characterized in that: the preparation method of described conductive sponge comprises step:
A: with polyurethane sponge be dipped into the conduction latex solution in 17-23 minute;
B: the described polyurethane sponge after will soaking dries processing;
C: the described polyurethane sponge after will drying is dried processing in 10 minutes under 115 ℃ of-125 ℃ of environment;
D: the described polyurethane sponge that takes out after oven dry is handled was placed 45-50 hour under the room temperature ventilated environment.
2. according to the preparation method of the described conductive sponge of claim 1, it is characterized in that: the soak time in the described steps A is 20 minutes.
3. according to the preparation method of the described conductive sponge of claim 1, it is characterized in that: the bake out temperature of polyurethane sponge described in the described step C is 120 ℃.
4. according to the preparation method of the described conductive sponge of claim 1, it is characterized in that: polyurethane sponge described in the described step D was placed 48 hours under the room temperature ventilated environment.
5. one kind conducts electricity the preparation method of latex solution, and it is characterized in that: the preparation method of described conduction latex solution comprises step:
A: be diluted to the urethane resin latex solution that content is 23%-27% with adding pure water with the congener urethane resin emulsion hydrosol of described polyurethane sponge;
B: conductive carbon black is ground to form the carbon slurry;
C: described carbon slurry added in the urethane resin latex solution that content is 23%-27% and add the water-based wetting dispersing agent carry out high-speed stirring.
6. according to the preparation method of the described conduction latex solution of claim 5, it is characterized in that: described step a is for to be diluted to content be 25% urethane resin latex solution with adding pure water with the congener urethane resin emulsion hydrosol of described polyurethane sponge.
7. according to the preparation method of the described conduction latex solution of claim 5, it is characterized in that: conductive carbon black described in the described step b is formed by the high chain-like structure of ghost, and structure particle diameter 17nm is than resistance 0.20 Ω.
8. according to the preparation method of the described conduction latex solution of claim 5, it is characterized in that: the slurry of carbon described in the described step c is 1:10 with the mass ratio that described urethane resin latex solution adds.
9. according to the preparation method of the described conduction latex solution of claim 5, it is characterized in that: water-based wetting dispersing agent described in the described step c is high-molecular block copolymer and silicone blend.
10. according to the preparation method of the described conduction latex solution of claim 9, it is characterized in that: the mass ratio that described high-molecular block copolymer and described silicone blend add is: 1:9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101053058A CN101481467B (en) | 2009-02-03 | 2009-02-03 | Preparations of conductive sponge and conductive latex solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101053058A CN101481467B (en) | 2009-02-03 | 2009-02-03 | Preparations of conductive sponge and conductive latex solution |
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| CN101481467A true CN101481467A (en) | 2009-07-15 |
| CN101481467B CN101481467B (en) | 2011-05-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172900A (en) * | 2013-02-20 | 2013-06-26 | 深圳创怡兴实业有限公司 | Preparation method of conductive sponge |
| CN105504338A (en) * | 2015-10-25 | 2016-04-20 | 国网山东省电力公司临沂供电公司 | Novel method for preparing conductive sponge |
| CN108102135A (en) * | 2017-12-30 | 2018-06-01 | 郑州峰泰纳米材料有限公司 | A kind of preparation method of the continuous compound of melamine bubble with anti-static function |
| CN110041558A (en) * | 2019-04-04 | 2019-07-23 | 东华大学 | A kind of honeycombed microstructure elastic conduction polyurethane sponge and its preparation and application |
| CN111073294A (en) * | 2020-01-16 | 2020-04-28 | 福州大学 | Flexible conductive sponge/silicone rubber composite material and preparation method thereof |
| CN111892738A (en) * | 2020-08-16 | 2020-11-06 | 五邑大学 | Preparation method of waterborne polyurethane conductive sponge |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI594690B (en) * | 2014-07-17 | 2017-08-01 | 欣興電子股份有限公司 | Preparation method of conductive sponge possessing electromagnetic interference shielding effectiveness |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487166C (en) * | 2004-06-07 | 2009-05-13 | 比亚迪股份有限公司 | Foam nickel preparing process |
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2009
- 2009-02-03 CN CN2009101053058A patent/CN101481467B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172900A (en) * | 2013-02-20 | 2013-06-26 | 深圳创怡兴实业有限公司 | Preparation method of conductive sponge |
| CN103172900B (en) * | 2013-02-20 | 2014-12-17 | 深圳创怡兴实业有限公司 | Preparation method of conductive sponge |
| CN105504338A (en) * | 2015-10-25 | 2016-04-20 | 国网山东省电力公司临沂供电公司 | Novel method for preparing conductive sponge |
| CN108102135A (en) * | 2017-12-30 | 2018-06-01 | 郑州峰泰纳米材料有限公司 | A kind of preparation method of the continuous compound of melamine bubble with anti-static function |
| CN110041558A (en) * | 2019-04-04 | 2019-07-23 | 东华大学 | A kind of honeycombed microstructure elastic conduction polyurethane sponge and its preparation and application |
| CN111073294A (en) * | 2020-01-16 | 2020-04-28 | 福州大学 | Flexible conductive sponge/silicone rubber composite material and preparation method thereof |
| CN111892738A (en) * | 2020-08-16 | 2020-11-06 | 五邑大学 | Preparation method of waterborne polyurethane conductive sponge |
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| CN101481467B (en) | 2011-05-25 |
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