CN104693324B - Method for adjusting surface tension of polybutadiene super-large-particle-size latex - Google Patents
Method for adjusting surface tension of polybutadiene super-large-particle-size latex Download PDFInfo
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- CN104693324B CN104693324B CN201310655142.7A CN201310655142A CN104693324B CN 104693324 B CN104693324 B CN 104693324B CN 201310655142 A CN201310655142 A CN 201310655142A CN 104693324 B CN104693324 B CN 104693324B
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- Prior art keywords
- latex
- polybutadiene
- membrane separator
- super
- deionized water
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- 239000004816 latex Substances 0.000 title claims abstract description 58
- 229920000126 latex Polymers 0.000 title claims abstract description 58
- 239000005062 Polybutadiene Substances 0.000 title claims abstract description 18
- 229920002857 polybutadiene Polymers 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000008367 deionised water Substances 0.000 claims abstract description 15
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 4
- 229910010272 inorganic material Inorganic materials 0.000 claims description 7
- 239000011147 inorganic material Substances 0.000 claims description 7
- -1 pipe Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 18
- 238000001223 reverse osmosis Methods 0.000 abstract 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 17
- 239000004094 surface-active agent Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 230000002902 bimodal effect Effects 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229940096992 potassium oleate Drugs 0.000 description 1
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention relates to a method for adjusting the surface tension of polybutadiene latex with super-large particle size; the method is characterized in that polybutadiene latex with super-large particle size is added into a storage tank, and is pumped into a tubular membrane separator through a pump, the membrane separator is arranged in a water tank, deionized water is arranged outside the pipe, circulating latex materials are arranged inside the pipe, the latex returns to the storage tank after passing through the membrane separator, a constant temperature device is arranged in the water tank, the temperature of the deionized water is 15-25 ℃, the temperature of the latex is 15-25 ℃, the deionized water is changed at regular time, and the change is carried out once every half an hour; the invention not only ensures the stability of the polybutadiene latex with super-large particle size, but also ensures that the reverse osmosis can be rapidly and repeatedly carried out.
Description
Technical field：
The invention belongs to engineering plastics production technical field, more particularly to a kind of polybutadiene super large particle diameter（600nm is left
It is right）The method of surface tension of latex.
Background technology
ABS resin is one of five big synthetic resin, its impact resistance, heat resistance, lower temperature resistance, chemical proofing and electricity
Gas function admirable, also with easy processing, product size is stable, lustrous surface is good the features such as, easy application, coloring can be with
Carry out the secondary operation such as surface metallization, plating, welding, hot pressing and bonding, be widely used in machinery, automobile, electronic apparatus,
The industrial circles such as instrument and meter, weaving and building, are a kind of purposes extremely wide thermoplastic engineering plastics.
Plastics ABS resin is that current production rate is maximum, most widely used polymer, and it is by PB, PAN, PS various performances
Organically unite, have tough, hard, firm phase excellent mechanical property in a balanced way concurrently.ABS is acrylonitrile, butadiene and styrene
Terpolymer, A represents acrylonitrile, and B represents butadiene, and S represents styrene.Plastics ABS has excellent mechanical property, and it impacts
Intensity is fabulous, can use at very low temperature；The high abrasion resistance of plastics ABS, good stability of the dimension has oil resistant again
Property, available for the bearing under medium load and rotating speed.ABS creep resistant is bigger than PSF and PC, but smaller than PA and POM.ABS's
Bending strength and compressive strength belong to poor in plastics.ABS mechanical property is influenced by temperature larger.
With industrial expansion, the application field of ABS resin is more and more wider, therefore the performance requirement of ABS resin is also got over
Come higher, especially impact strength and tensile strength.And in order to improve the impact strength of ABS products, often to lose other property
Can such as tensile strength, surface gloss etc..In order to improve the impact strength of ABS resin, each major company employs different
Method.What is used at present is at most exactly to use the rubber of big particle or prepare bimodal ABS resin.Bimodal grafting is mainly at present
Using super large particle diameter（600nm or so）Latex and big particle diameter（300nm or so）Latex is blended in certain proportion, using appropriate
The technology of emulsifying agent control grafting rate is higher by many bimodal ABS resins of general ABS resin to obtain impact strength.
Super large particle diameter（600nm or so）Preparing for latex is particularly significant, is the premise of bimodal ABS technologies.Have at present directly
Polymerization, agglomeration technique etc..Agglomeration technique prepares production super large particle diameter（600nm or so）Latex, with the reaction time is short, particle diameter is big etc.
Advantage.In order to keep super large particle diameter（600nm or so）The stability of latex, is added very among super large grain size latex
Multi-surface activating agent, such as potassium oleate, isproportionated potassium rosinate, neopelex.Although these measures add
The stability of super large grain size latex, can also there is drawback.It is some grafting formula in, it is undesirable to based on latex super large particle diameter
Contain excessive surfactant in latex, because these surfactants are likely to influence graft reaction, for some spies
Different trade mark ABS production is unfavorable.These surfactants are on the surface that the direct performance of super large grain size latex is exactly latex
Tensity size.When other factors are fixed in latex, surfactant is more, and surface tension is smaller, finally levels off to one surely
Definite value.So, for a kind of specific super large particle diameter（600nm or so）Latex, controls its surface tension, is exactly that control surface is lived
The content of property agent.
Remove super large particle diameter（600nm or so）Surfactant in latex is complicated more than surfactant is added.Pass
The method of system is helpless, will all damage the stability of latex.It is a kind of preferable method that latex progress, which is handled, using film.Nothing
Machine membrane material is because with stable chemical nature, organic solvent-resistant, narrow pore-size distribution, high mechanical strength, resistance to pressure is good, it is clear to be easy to
The advantages of washing.Inoranic membrane includes SPG films, ceramic membrane, quartz glass film, flat board nickel film etc., wherein the SPG films of Japanese Development and Production
Use most, the uniform micro that it contains column, interconnected.Therefore, polybutadiene is adjusted using using inorganic material SPG films
Super large grain size latex surface tension is a kind of feasible method.
The content of the invention
The purpose of the present invention is the method using UF membrane, using inorganic material SPG films, for a kind of specific super large grain
Footpath（600nm or so）Latex, by the excessive surfactant molecule counter-infiltration in latex into deionized water, reaches that reduction is super
Surface-active contents in large grain size latex, control polybutadiene super large grain size latex surface tension.
Technical solution of the present invention is as follows：
Polybutadiene super large grain size latex is added in storage tank, the membrane separator that tubulose is squeezed into by pump, UF membrane
Device is arranged in the sink, is deionized water on the outside of pipe, and pipe inner side is the latex material of circulation, and latex after membrane separator by returning to
In storage tank.Have thermostat in tank, deionized water temperature at 15 DEG C~25 DEG C, latex temperature 15 DEG C~25 DEG C, deionization
Water timing is changed, and is changed once per half an hour.
Described tubulose membrane separator is the inorganic material SPG films of tubulose.
After polybutadiene super large grain size latex surface tension increases to the required value for meeting and being graft-polymerized, by latex storage tank
Emptying, pipeline needs disassembly, cleaning.
Beneficial effect of the present invention：
（1）Tubulose membrane separator uses inorganic material SPG films, and intensity is higher, and it is higher that operating pressure can be set, can
Increase counter osmosis, surfactant molecule is quickly shifted in the deionized water in screw clamp.
（2）By pump circulation polybutadiene super large grain size latex, latex residence time in tubulose membrane separator is short, unsuitable
Wall built-up and blocking, both ensure that the stability of polybutadiene super large grain size latex, in turn ensure that counter osmosis can quickly repeatedly
Carry out.
Embodiment：
Embodiment 1
It is that 30%, surface tension is 29.0mN/m by 5000 grams, total solid content2Polybutadiene super large particle diameter（600nm is left
It is right）Latex adds and deionized water is filled it up with storage tank, tank, and deionized water temperature is at 15 DEG C, and latex temperature starts latex at 15 DEG C
In circulating pump, the membrane separator that latex is squeezed into tubulose, membrane separator is the inorganic material SPG films of tubulose.Latex is circulated, per half
Hour changes a deionized water.After 5 hours, polybutadiene super large particle diameter（600nm or so）Surface tension of latex rises to 31.2,
Total solid content is maintained at 30%, and latex stability is good.
Embodiment 2
It is that 28%, surface tension is 28.2mN/m by 5000 grams, total solid content2Polybutadiene super large particle diameter（600nm is left
It is right）Latex adds and deionized water is filled it up with storage tank, tank, and deionized water temperature is at 25 DEG C, and latex temperature starts latex at 25 DEG C
In circulating pump, the membrane separator that latex is squeezed into tubulose, membrane separator is the inorganic material SPG films of tubulose.Latex is circulated, per half
Hour changes a deionized water.After 4 hours, polybutadiene super large particle diameter（600nm or so）Surface tension of latex rises to 30.3, always
Solid content is maintained at 28%, and latex stability is good.
Claims (1)
1. a kind of method for adjusting polybutadiene super large grain size latex surface tension, it is characterised in that：By polybutadiene super large grain
Footpath latex is added in storage tank, the membrane separator that tubulose is squeezed into by pump, and membrane separator is arranged in the sink, is on the outside of pipe
It is the latex material of circulation on the inside of ionized water, pipe, latex has thermostat by being returned to after membrane separator in storage tank in tank,
Deionized water temperature is at 15 DEG C~25 DEG C, and latex temperature is at 15 DEG C~25 DEG C, and deionized water timing is changed, and one is changed per half an hour
Secondary, described membrane separator is the inorganic material SPG films of tubulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655142.7A CN104693324B (en) | 2013-12-06 | 2013-12-06 | Method for adjusting surface tension of polybutadiene super-large-particle-size latex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655142.7A CN104693324B (en) | 2013-12-06 | 2013-12-06 | Method for adjusting surface tension of polybutadiene super-large-particle-size latex |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104693324A CN104693324A (en) | 2015-06-10 |
| CN104693324B true CN104693324B (en) | 2017-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310655142.7A Active CN104693324B (en) | 2013-12-06 | 2013-12-06 | Method for adjusting surface tension of polybutadiene super-large-particle-size latex |
Country Status (1)
| Country | Link |
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| CN (1) | CN104693324B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160726A (en) * | 1976-05-07 | 1979-07-10 | Abcor, Inc. | Ultrafiltration process for the concentration of polymeric latices |
| WO2013055202A1 (en) * | 2011-10-11 | 2013-04-18 | Sime Darby Malaysia Berhad | A method of recovering rubber from skim natural rubber latex |
| CN103724459A (en) * | 2013-12-25 | 2014-04-16 | 江苏久吾高科技股份有限公司 | Method for resource utilization of skim serum |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7749387B2 (en) * | 2006-08-08 | 2010-07-06 | Exxonmobil Research And Engineering Company | Integrally-layered polymeric membranes and method of use |
-
2013
- 2013-12-06 CN CN201310655142.7A patent/CN104693324B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160726A (en) * | 1976-05-07 | 1979-07-10 | Abcor, Inc. | Ultrafiltration process for the concentration of polymeric latices |
| WO2013055202A1 (en) * | 2011-10-11 | 2013-04-18 | Sime Darby Malaysia Berhad | A method of recovering rubber from skim natural rubber latex |
| CN103724459A (en) * | 2013-12-25 | 2014-04-16 | 江苏久吾高科技股份有限公司 | Method for resource utilization of skim serum |
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| Publication number | Publication date |
|---|---|
| CN104693324A (en) | 2015-06-10 |
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