CN106380642A - Preparation method of inflation latex - Google Patents
Preparation method of inflation latex Download PDFInfo
- Publication number
- CN106380642A CN106380642A CN201610797876.2A CN201610797876A CN106380642A CN 106380642 A CN106380642 A CN 106380642A CN 201610797876 A CN201610797876 A CN 201610797876A CN 106380642 A CN106380642 A CN 106380642A
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- weight portion
- preparation
- latex
- mixing
- acrylic emulsion
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2421/00—Characterised by the use of unspecified rubbers
- C08J2421/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/14—Homopolymers or copolymers of styrene with unsaturated esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to a preparation method of inflation latex. The preparation method comprises the following steps: mixing the following inflation latex preparation raw materials, by weight, 100-300 parts of natural rubber, 60-90 parts of latex, 3-15 parts of urea, 2-7 parts of azodibenzamide, 3-8 parts of glass flakes, 1-5 parts of lanthana, 1-3 parts of sulfur, 1-5 parts of a styrene acrylic emulsion and 3-15 parts of an acrylic emulsion, remilling and vulcanizing. The inflation latex has the characteristics of high pressure resistance, good bubble uniformity, high flexibility, good water resistance, long service life and low cost.
Description
Technical field
A kind of present invention relates particularly to inflation latex field, more particularly, it relates to preparation method of inflation latex.
Background technology
Develop rapidly with economic, the quantity of automobile grows with each passing day, tire as important composition in automobile, tire
Demand is also to increase year by year.As the common used material of the automobile tire inner tube of a tyre, it is commonplace for inflating latex in current application
's.But, the preparation of inflation latex at present often exposes the defect that voltage endurance capability is poor, mechanical strength is low in use,
Limit its service life, be unfavorable for the reduction of production cost.
Content of the invention
The invention provides a kind of preparation method of inflation latex, have that voltage endurance capability is strong, bubble uniformity is good, pliability
Height, water-tolerant, long service life and feature with low cost.
The technical solution adopted in the present invention is：
The present invention provides a kind of preparation method of inflation latex, and described preparation method includes：According to 100-300 weight portion
Natural rubber, the latex of 60-90 weight portion, the carbamide of 3-15 weight portion, two Methanamides of azo of 2-7 weight portion, 3-8 weight
The glass flake of part, the lanthana of 1-5 weight portion, the sulfur of 1-3 weight portion, the styrene-acrylic emulsion of 1-5 weight portion and 3-15 weight
Part acrylic emulsion proportioning by being used for preparing after the raw material mixing of inflation latex carrying out kneading, back mixing and sulfuration.
Preferably, also include the magnesium carbonate of 3-15 weight portion in the proportioning of described inflation latex.
Preferably, the proportioning of described inflation latex includes the natural rubber of 200-300 weight portion, the urine of 6-10 weight portion
Element, two Methanamides of azo of 3-6 weight portion, the glass flake of 4-8 weight portion, the lanthana of 2-3 weight portion, 1-3 weight portion
Sulfur, the styrene-acrylic emulsion of 1-4 weight portion and 4-15 weight portion acrylic emulsion.
Preferably, described mixing carry out in mill, described for preparation inflation latex raw material charging sequence according to
Secondary it is：Natural rubber, glass flake, lanthana, carbamide, two Methanamides of azo, styrene-acrylic emulsion, acrylic emulsion and sulfur；
Wherein, described azo two Methanamides, styrene-acrylic emulsion, acrylic emulsions are simultaneously introduced, and other raw materials are individually added into.
Preferably, the condition of described mixing is：Temperature is 100-150 DEG C, and the time of mixing is 1-12 hour.
Preferably, after mixing products therefrom being carried out placing 1-3 days, carry out back mixing, the condition of described back mixing is：Temperature is
100-150 DEG C, the time of mixing is 1-12 hour.
Preferably, described sulfuration includes once sulfuration and post-cure.
Preferably, the described condition that once vulcanizes is：Temperature is 110-130 DEG C, and the time is 5-10 minute, described secondary sulfur
Change condition be：Temperature is 140-160 DEG C, and the time is 12-24 minute.
Beneficial effects of the present invention are：
Firstth, voltage endurance capability is strong, and the present invention adopts the good natural rubber preparation inflation latex of compressible performance, prepared
Inflation latex compressibility is good, and anti-deformation nature is strong, can recycle after high pressure uses；
Secondth, bubble uniformity is good, and the present invention adopts lanthana catalyzing urea, two Methanamide release bubbles of azo more
Uniformly, so that inflation latex is not susceptible to part deformation, more pressure；
3rd, pliability is high, glass flake transverse and longitudinal than up to 30-120 advantage, the glass flake of platypelloid type is in inflation
It is in the palace formula structure of parallel overlapping arrangement in latex, not only effectively provide latexIntensity；
4th, good waterproof performance, the addition of glass flake, the antiseepage Rotating fields of densification can be formed in latex.Corrosion is situated between
Infiltration in matter inflation latex after hardening has to pass through no several tortuous approach, forms certain thickness in inflation latex
Anti-corrosion layer, the distance of corrosion penetration greatly extends, significantly improve inflation latex corrosion resistance and waterproof effect；
5th, long service life is given, and is mixed it is also possible to improve further with the crosslinking of acrylic emulsion by styrene-acrylic emulsion
The pliability of inflation latex, adhesion；And interacting with each other of other auxiliary agents, mutually promote, effectively maintain inflation latex solid
Some water resistancees and weatherability；
6th, with low cost, the raw material that inflation latex is selected is convenient source, and raw material is simple and easy to get, preparation technology letter
Single, effectively reduce the cost of manufacture of inflation latex.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art's obtained owning on the premise of not making creative work
Other embodiment, broadly falls into the scope that the present invention is protected.
The present invention provides a kind of preparation method of inflation latex, and described preparation method includes：According to 100-300 weight portion
Natural rubber, the latex of 60-90 weight portion, the carbamide of 3-15 weight portion, two Methanamides of azo of 2-7 weight portion, 3-8 weight
The glass flake of part, the lanthana of 1-5 weight portion, the sulfur of 1-3 weight portion, the styrene-acrylic emulsion of 1-5 weight portion and 3-15 weight
Part acrylic emulsion proportioning by being used for preparing after the raw material mixing of inflation latex carrying out kneading, back mixing and sulfuration.Preferably wrap
Include the natural rubber of 200-300 weight portion, the carbamide of 6-10 weight portion, two Methanamides of azo of 3-6 weight portion, 4-8 weight
The glass flake of part, the lanthana of 23 weight portions, the sulfur of 1-3 weight portion, the styrene-acrylic emulsion of 1-4 weight portion and 4 15 weights
The acrylic emulsion of amount part.
According to the present invention, in order that bubble is finer and close in inflation latex, described inflation latex also includes 3-15 weight portion
Magnesium carbonate.
According to the present invention, described styrene-acrylic emulsion and acrylic emulsion are accelerator, described carbamide and two Methanamides of azo
It is foaming agent.
According to the present invention, knead, back mixing and sulfuration are well-known to those skilled in the art, a kind of specific embodiment,
Described mixing is carried out in mill, and the charging sequence of the described raw material for preparation inflation latex is followed successively by：Natural rubber, glass
Glass scale, lanthana, carbamide, two Methanamides of azo, styrene-acrylic emulsion, acrylic emulsion and sulfur；Wherein, described azo two
Methanamide, styrene-acrylic emulsion, acrylic emulsion are simultaneously introduced, and other raw materials are individually added into.The condition of described mixing can be：Temperature
For 100-150 DEG C, the time of mixing is 1-12 hour, after mixing products therefrom is carried out placing 1-3 days, carries out back mixing, described
The condition of back mixing can be：Temperature is 100-150 DEG C, and the time of mixing is 1-12 hour, and described sulfuration can include a sulfur
Change and post-cure, the described condition once vulcanizing can be：Temperature is 110-130 DEG C, and the time is 5-10 minute, described secondary
Sulfuration condition can be：Temperature is 140-160 DEG C, and the time is 12-24 minute.
The present invention will be further illustrated by embodiment below, but the present invention is not therefore subject to any restriction.
If no special instructions, instrument of the present invention and reagent are commercially available, and the commodity of different brands do not affect specifically to make
With.
Embodiment 1
Successively by 100 parts by weight of natural rubber, the latex of 80 weight portions, 3 parts by weight of glass scales, 1 weight portion lanthana,
3 parts by weight of urea and the mixing of two Methanamides of 2 weight portion azos, 1 weight portion styrene-acrylic emulsion and 3 parts by weight of acrylic acid emulsions
Thing and 1 weight portion sulfur are put in plastics processing mill and are carried out kneading 1 hour, after then placing 1 day, 100 at temperature is 100 DEG C
Back mixing 1 hour at DEG C, is then once vulcanized 5 minutes at 110 DEG C, carries out post-cure 12 minutes, obtain thickness at 140 DEG C
Spend for 10.0 centimetres of inflation latex X-1.
Embodiment 2
Successively by 300 parts by weight of natural rubber, the latex of 90 weight portions, 8 parts by weight of glass scales, 5 weight portion lanthanas,
15 parts by weight of urea and two Methanamides of 7 weight portion azos, 5 weight portion styrene-acrylic emulsions and 15 parts by weight of acrylic acid emulsions mixed
Compound and 3 weight portion sulfur are put in plastics processing mill and are carried out kneading 12 hours at temperature is 150 DEG C, after then placing 3 days,
Back mixing 1-12 hour at 150 DEG C, is then once vulcanized 10 minutes at 130 DEG C, carries out 24 points of post-cure at 160 DEG C
Clock, obtaining thickness is 10.0 centimetres of inflation latex X-2.
Embodiment 3
Successively by 200 parts by weight of natural rubber, the latex of 60 weight portions, 5 parts by weight of glass scales, 3 weight portion lanthanas,
10 parts by weight of urea and two Methanamides of 4 weight portion azos, 3 weight portion styrene-acrylic emulsions and 12 parts by weight of acrylic acid emulsions mixed
Compound and 2 weight portion sulfur are put in plastics processing mill and are carried out kneading 6 hours at temperature is 120 DEG C, after then placing 2 days,
Back mixing 6 hours at 120 DEG C, are then once vulcanized 7 minutes at 120 DEG C, carry out post-cure 18 minutes, obtain at 150 DEG C
It is 10.0 centimetres of inflation latex X-3 to thickness.
Comparative example 1
Comparative example 1 is with the difference of embodiment 1：Comparative example 1 does not include styrene-acrylic emulsion.
Comparative example 2
Comparative example 2 is with the difference of embodiment 1：Comparative example 2 does not include glass flake.
Comparative example 3
Comparative example 1 is with the difference of embodiment 1：Comparative example 3 does not include styrene-acrylic emulsion and glass flake.
Inflate the performance of latex in order to study gained of the present invention, carry out pressure recovery capability and Mechanics Performance Testing respectively.
Concrete test result is as shown in Table 1 and Table 2.
Pressure recovery capability is tested by this inflation latex at room temperature, with 1000mm/min on Instron IX puller system
Speed perpendicular to inflation emulsion thickness direction by inflate latex be compressed to rapidly stress 1.0MPa, 2Mpa, 4Mpa and 5Mpa,
Then recover 5 minutes, check the recovery thickness (being accurate to millimeter) of inflation latex, the results are shown in Table 1.
Recovery capability test result that table 1 is pressure
As it can be seen from table 1 the compression restorability of the inflated rubber latex of the present invention is good, can reuse.
Table 2 mechanical experimental results
Can see from table 2 result, the inflation latex that the present invention prepares gained has good pliability and water proofing property, should
With having a extensive future.
The above, only presently preferred embodiments of the present invention, not the present invention is made with any pro forma restriction；All
The those of ordinary skill of the industry all can shown in by specification and the above and swimmingly implement the present invention；But, all familiar
Professional and technical personnel in the range of without departing from technical solution of the present invention, available disclosed above technology contents and make
A little change, modify with develop equivalent variations, be the Equivalent embodiments of the present invention；Meanwhile, all realities according to the present invention
The change of any equivalent variations, modification and differentiation that matter technology is made to above example etc., all still fall within the technology of the present invention
Within the protection domain of scheme.
Claims (8)
1. a kind of preparation method of inflation latex is it is characterised in that described preparation method includes：According to 100-300 weight portion
Natural rubber, the latex of 60-90 weight portion, the carbamide of 3-15 weight portion, two Methanamides of azo of 2-7 weight portion, 3-8 weight
The glass flake of part, the lanthana of 1-5 weight portion, the sulfur of 1-3 weight portion, the styrene-acrylic emulsion of 1-5 weight portion and 3-15 weight
Part acrylic emulsion proportioning by being used for preparing after the raw material mixing of inflation latex carrying out kneading, back mixing and sulfuration.
2. the preparation method of inflation latex according to claim 1 is it is characterised in that also include in the proportioning of described inflation latex
The magnesium carbonate of 3-15 weight portion.
3. the preparation method of inflation latex according to claim 1 is it is characterised in that the proportioning of described inflation latex includes 200-
The natural rubber of 300 weight portions, the carbamide of 6-10 weight portion, two Methanamides of azo of 3-6 weight portion, the glass of 4-8 weight portion
The third of glass scale, the lanthana of 2-3 weight portion, the sulfur of 1-3 weight portion, the styrene-acrylic emulsion of 1-4 weight portion and 4-15 weight portion
Olefin(e) acid emulsion.
4. preparation method according to claim 3 is it is characterised in that described mixing is carried out in mill, described is used for
The charging sequence of the raw material of preparation inflation latex is followed successively by：Natural rubber, glass flake, lanthana, carbamide, two formyls of azo
Amine, styrene-acrylic emulsion, acrylic emulsion and sulfur；Wherein, described azo two Methanamides, styrene-acrylic emulsion, acrylic emulsions are simultaneously
Add, other raw materials are individually added into.
5. preparation method according to claim 4 is it is characterised in that the condition of described mixing is：Temperature is 100-150
DEG C, the time of mixing is 1-12 hour.
6., after preparation method according to claim 4 is it is characterised in that carry out placing 1-3 days mixing products therefrom, enter
Row back mixing, the condition of described back mixing is：Temperature is 100-150 DEG C, and the time of mixing is 1-12 hour.
7. the preparation method according to claim 5 or 6 is it is characterised in that described sulfuration includes once vulcanizing and secondary sulfur
Change.
8. preparation method according to claim 4 is it is characterised in that the described condition that once vulcanizes is：Temperature is 110-
130 DEG C, the time is 5-10 minute, and the condition of described post-cure is：Temperature is 140-160 DEG C, and the time is 12-24 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610797876.2A CN106380642A (en) | 2016-08-31 | 2016-08-31 | Preparation method of inflation latex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610797876.2A CN106380642A (en) | 2016-08-31 | 2016-08-31 | Preparation method of inflation latex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106380642A true CN106380642A (en) | 2017-02-08 |
Family
ID=57938968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610797876.2A Pending CN106380642A (en) | 2016-08-31 | 2016-08-31 | Preparation method of inflation latex |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746210A (en) * | 2004-09-06 | 2006-03-15 | 张凤云 | High-stretch tyre and production thereof |
| US20090054581A1 (en) * | 2005-10-14 | 2009-02-26 | The Trustees Of Princeton University | Tire containing thermally exfoliated graphite oxide |
| CN102558628A (en) * | 2012-01-19 | 2012-07-11 | 北京化工大学 | Graphene oxide/polymer composition for tire liner and inner tube and preparation method thereof |
| CN103374153A (en) * | 2013-06-30 | 2013-10-30 | 北京化工大学 | Preparation method of supermolecule/rubber airtight materials |
| US8877309B1 (en) * | 2012-02-29 | 2014-11-04 | Carolyn M. Dry | Self-repairing inflatable articles |
| CN105017595A (en) * | 2015-07-31 | 2015-11-04 | 河北协美橡胶制品有限公司 | Microporous foamed tire and preparation method thereof |
| CN105111333A (en) * | 2015-09-29 | 2015-12-02 | 广东海洋大学 | Method for preparing epoxidized natural rubber concentrated latex |
-
2016
- 2016-08-31 CN CN201610797876.2A patent/CN106380642A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746210A (en) * | 2004-09-06 | 2006-03-15 | 张凤云 | High-stretch tyre and production thereof |
| US20090054581A1 (en) * | 2005-10-14 | 2009-02-26 | The Trustees Of Princeton University | Tire containing thermally exfoliated graphite oxide |
| CN102558628A (en) * | 2012-01-19 | 2012-07-11 | 北京化工大学 | Graphene oxide/polymer composition for tire liner and inner tube and preparation method thereof |
| US8877309B1 (en) * | 2012-02-29 | 2014-11-04 | Carolyn M. Dry | Self-repairing inflatable articles |
| CN103374153A (en) * | 2013-06-30 | 2013-10-30 | 北京化工大学 | Preparation method of supermolecule/rubber airtight materials |
| CN105017595A (en) * | 2015-07-31 | 2015-11-04 | 河北协美橡胶制品有限公司 | Microporous foamed tire and preparation method thereof |
| CN105111333A (en) * | 2015-09-29 | 2015-12-02 | 广东海洋大学 | Method for preparing epoxidized natural rubber concentrated latex |
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Application publication date: 20170208 |