CN103113631A - Ammonia-free preservation system for natural latex - Google Patents
Ammonia-free preservation system for natural latex Download PDFInfo
- Publication number
- CN103113631A CN103113631A CN201210596544XA CN201210596544A CN103113631A CN 103113631 A CN103113631 A CN 103113631A CN 201210596544X A CN201210596544X A CN 201210596544XA CN 201210596544 A CN201210596544 A CN 201210596544A CN 103113631 A CN103113631 A CN 103113631A
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- CN
- China
- Prior art keywords
- ammonia
- natural rubber
- rubber latex
- latex
- preservation system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004321 preservation Methods 0.000 title claims abstract description 21
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 title abstract description 35
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 121
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 61
- 239000003381 stabilizer Substances 0.000 claims abstract description 4
- 150000003918 triazines Chemical class 0.000 claims abstract description 4
- 229920006173 natural rubber latex Polymers 0.000 claims description 38
- 150000001875 compounds Chemical class 0.000 claims description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 3
- 229940056585 ammonium laurate Drugs 0.000 claims 1
- VJCJAQSLASCYAW-UHFFFAOYSA-N azane;dodecanoic acid Chemical compound [NH4+].CCCCCCCCCCCC([O-])=O VJCJAQSLASCYAW-UHFFFAOYSA-N 0.000 claims 1
- 229920000126 latex Polymers 0.000 abstract description 10
- 239000004816 latex Substances 0.000 abstract description 10
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 3
- 239000003755 preservative agent Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003899 bactericide agent Substances 0.000 abstract 2
- -1 ammonia compound Chemical class 0.000 abstract 1
- 230000007794 irritation Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- UDPGUMQDCGORJQ-UHFFFAOYSA-N (2-chloroethyl)phosphonic acid Chemical compound OP(O)(=O)CCCl UDPGUMQDCGORJQ-UHFFFAOYSA-N 0.000 description 1
- LKLLNYWECKEQIB-UHFFFAOYSA-N 1,3,5-triazinane Chemical compound C1NCNCN1 LKLLNYWECKEQIB-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000019633 pungent taste Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an ammonia-free preservation system for natural latex. The ammonia-free preservation system is of 10% aqueous liquid which is formed in a manner that a bactericide and a stabilizer are compounded in a ratio of (5:1)-(10:1). According to the ammonia-free preservation system for the natural latex, a triazine derivative is screened out of a large number of water-soluble and non-volatile broad-spectrum bactericides aiming at the problems of ammonia and ammonia compound preservatives, and meanwhile, a small amount of stabilizer is compounded, thereby preparing a preservation system for concentrated natural latex. The novel preservation system has the characteristics of no ammonia, no volatilization, no irritation and easiness in water dissolving and can stably preserve centrifuging-concentrated natural latex for over six months; and the comprehensive performance of a vulcanized latex film is excellent, and the 500% stress at definite elongation, 700% stress at definite elongation, the tensile strength and tear strength of the vulcanized latex film are respectively increased by 27.8%, 13.9%, 25.5% and 13.7% compared with those of a vulcanized latex film of ammonia-preserved concentrated natural latex.
Description
Technical field
A kind of Novel natural latex is preserved system without ammonia, is specifically related to the concentrated natural latex store method, belongs to the natural rubber processing technique field.
Background technology
Natural rubber latex fresh latex and revertex are because the effect of bacterium, enzyme easily causes the putrid and deteriorated of latex, thereby have influence on the physical and mechanical properties of stability, processing characteristics and the rubber of latex, thereby latex to add a certain amount of preservation system to guarantee the stability of latex in rubber tapping, receipts glue, transportation and storage process.The main compound preservation system of ammonia and ammonia that adopts is as the preservatives of fresh latex and revertex at present.The requirement of cutting, use ethrel to stimulate volume increase and the mechanize of modern glue industrial realization, serialization, automatization three to change along with opening in a large number of high yield clone gum in recent years, adopt the compound preservation system of traditional ammonia and ammonia can not satisfy the requirement that modern glue is produced, therefore the comparatively serious environmental pollution that causes due to ammonia emission, pungency simultaneously researches and develops efficient, the economic inexorable trend that becomes Natural Rubber Industry Development without ammonia preservation system.
Summary of the invention
The objective of the invention is to adopt a kind of Novel natural latex to preserve system without ammonia, solve the problem of environmental pollution that in modern glue production, latex is preserved and ammonia causes.
The present invention adopts following technical scheme:
A kind of natural rubber latex is preserved system without ammonia, and natural rubber latex is 10% the aqueous solution that sterilant and stablizer are re-dubbed in the ratio of 5: 1～10: 1 without ammonia preservation system.
Described natural rubber latex is preserved system without ammonia, and described sterilant is a kind of triazine derivative.
Described natural rubber latex is preserved system without ammonia, and described stablizer is one of sodium lauryl sulphate, lauric acid money or its compound.
Described natural rubber latex is preserved system without ammonia, and described sterilant consumption is the 0.1-0.3wt% of revertex total amount, and stabilizing agent dosage is revertex total amount 0.05-0.2wt%.
Described natural rubber latex is preserved system without ammonia, when described natural rubber latex uses without ammonia preservation system, first add in advance the described natural rubber latex of 0.05～0.08wt% of natural rubber latex weight to preserve system without ammonia in natural rubber latex, measure described natural rubber latex after centrifugal concentrating and preserve the content of system without ammonia, add described natural rubber latex again and preserve system without ammonia, the ratio that makes described natural rubber latex preserve system and natural rubber latex without ammonia reaches 0.1-0.2wt%.
Novel natural latex of the present invention is preserved system without ammonia, has the advantages such as soluble in water, non-volatile, non-stimulated, good stability, hypotoxicity.
Novel can stablizing without the ammonia system of preserving of the present invention preserves concentrated natural latex and reaches more than 6 months.
The present invention is directed to the problem that the compound preservatives of ammonia and ammonia exists, filter out a kind of triazine derivative from the broad-spectrum bactericidal effect agent of water-soluble, non-volatility in a large number, simultaneously composite a small amount of stablizer is as the preservation system of concentrated natural latex.This novel preservation system has ammonia, the characteristics non-volatile, non-stimulated, soluble in water of not containing, can stablize preservation centrifugal concentrating natural rubber latex reached more than 6 months, and the excellent combination property of sulfuration glued membrane, its 500% stress at definite elongation, 700% stress at definite elongation, tensile strength, tear strength are preserved concentrated natural latex sulfuration glued membrane than ammonia and are improved respectively 27.8%, 13.9%, 25.5%, 13.7%.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
(a) Novel natural latex is the aqueous solution of the 10wt% that is re-dubbed by the mass ratio of 5: 1～10: 1 by sterilant and stablizer without ammonia preservation system, first add in advance this Novel natural latex of 0.05～0.08wt% of natural rubber latex weight to preserve system without ammonia in fresh natural rubber latex, measure Novel natural latex after centrifugal concentrating and preserve the content of system without ammonia, add Novel natural latex again and preserve system without ammonia, the ratio that makes Novel natural latex preserve system and natural rubber latex without ammonia reaches 0.1wt%; Sterilant used is perhydro-s-triazine, and stablizer is sodium lauryl sulphate.
According to GB/T8292-2008, (a) measured a volatile fatty acids value every 30 days.
According to GB/T14797.2-2008, (a) measured a viscosity every 30 days.
(b) according to sulfurizing formula shown in table 1, (a) vulcanized, then prepare the dried glued membrane of concentrated natural latex according to GB/T18011-2008.
With reference to GB/T528-2009, (b) carried out the mensuration of tensile stress-strain performance.
Embodiment 2
(a) first add in advance in the fresh natural rubber latex Novel natural latex of the 10wt% that is re-dubbed by the mass ratio of 5: 1～10: 1 by sterilant and stablizer of 0.05～0.08wt% to preserve system without ammonia, measure Novel natural latex after centrifugal concentrating and preserve the content of system without ammonia, add Novel natural latex again and preserve system without ammonia, the ratio that makes Novel natural latex preserve system and natural rubber latex without ammonia reaches 0.2wt%.
According to GB/T8292-2008, (a) measured a volatile fatty acids value every 30 days.
According to GB/T14797.2-2008, (a) measured a viscosity every 30 days.
(b) according to sulfurizing formula shown in table 1, (a) vulcanized, then prepare the dried glued membrane of concentrated natural latex according to GB/T18011-2008.
With reference to GB/T528-2009, (b) carried out the mensuration of tensile stress-strain performance.
Embodiment 3
(a) first add in advance in the fresh natural rubber latex Novel natural latex of the 10wt% that is re-dubbed by the mass ratio of 5: 1～10: 1 by sterilant and stablizer of 0.05～0.08wt% to preserve system without ammonia, measure Novel natural latex after centrifugal concentrating and preserve the content of system without ammonia, add Novel natural latex again and preserve system without ammonia, the ratio that makes Novel natural latex preserve system and natural rubber latex without ammonia reaches 0.3wt%.
According to GB/T8292-2008, (a) measured a volatile fatty acids value every 30 days.
According to GB/T14797.2-2008, (a) measured a viscosity every 30 days.
(b) according to sulfurizing formula shown in table 1, (a) vulcanized, then prepare the dried glued membrane of concentrated natural latex according to GB/T180112008.
With reference to GB/T528-2009, (b) carried out the mensuration of tensile stress-strain performance.
Table 1 sulfurizing formula (butt, mass parts)
Measurement result is as shown in table 2～4.
Table 20.1wt% preserves system to the impact of revertex and glue film performance without ammonia
From the results shown in Table 2, reach 6 months although embodiment 1 can preserve concentrated natural latex, preservation effect is starkly lower than high ammonia and preserves concentrated natural latex, and mechanical property also obviously reduces.
Table 30.2wt% preserves system to the impact of revertex and glue film performance without ammonia
From the results shown in Table 3, embodiment 2 can preserve preferably concentrated natural latex and reach 6 months, but preservation effect is preserved concentrated natural latex a little less than high ammonia.
Table 40.3wt% preserves system to the impact of revertex and glue film performance without ammonia
From the results shown in Table 4, embodiment 3 preservation effects obviously are better than high ammonia and preserve concentrated natural latex, and mechanical property also significantly improves, and its 500% stress at definite elongation, 700% stress at definite elongation, tensile strength, tear strength are preserved the dried glued membrane of concentrated natural latex than ammonia and improved respectively 27.8%, 13.9%, 25.5%, 13.7%.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improve and conversion all should belong to the protection domain of claims of the present invention.
Claims (5)
1. a natural rubber latex is preserved system without ammonia, it is characterized in that, natural rubber latex is 10% the aqueous solution that sterilant and stablizer are re-dubbed in the ratio of 5: 1～10: 1 without ammonia preservation system.
2. natural rubber latex according to claim 1 is preserved system without ammonia, it is characterized in that, described sterilant is a kind of triazine derivative.
3. natural rubber latex according to claim 1 is preserved system without ammonia, it is characterized in that, described stablizer is one of sodium lauryl sulphate, ammonium laurate or its compound.
4. natural rubber latex according to claim 1 is preserved system without ammonia, it is characterized in that, described sterilant consumption is the 0.1-0.3wt% of revertex total amount, and stabilizing agent dosage is revertex total amount 0.050.2wt%.
5. natural rubber latex according to claim 1 is preserved system without ammonia, it is characterized in that, when described natural rubber latex uses without ammonia preservation system, first add in advance the described natural rubber latex of 0.05～0.08wt% of natural rubber latex weight to preserve system without ammonia in natural rubber latex, measure described natural rubber latex after centrifugal concentrating and preserve the content of system without ammonia, add described natural rubber latex again and preserve system without ammonia, the ratio that makes described natural rubber latex preserve system and natural rubber latex without ammonia reaches 0.1-0.2wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210596544.XA CN103113631B (en) | 2012-12-27 | 2012-12-27 | Ammonia-free preservation system for natural latex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210596544.XA CN103113631B (en) | 2012-12-27 | 2012-12-27 | Ammonia-free preservation system for natural latex |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103113631A true CN103113631A (en) | 2013-05-22 |
| CN103113631B CN103113631B (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210596544.XA Expired - Fee Related CN103113631B (en) | 2012-12-27 | 2012-12-27 | Ammonia-free preservation system for natural latex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103113631B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565862A (en) * | 2015-10-12 | 2017-04-19 | 海南大学 | Natural latex ammonia-free preservative and preservation method thereof |
| CN108383929A (en) * | 2018-02-08 | 2018-08-10 | 中国热带农业科学院橡胶研究所 | A kind of no ammonia preserves composition and its product |
| CN109369826A (en) * | 2018-09-21 | 2019-02-22 | 昌江金达乳胶制品有限公司 | Production method of ammonia-free natural concentrated latex |
| CN109988257A (en) * | 2019-04-19 | 2019-07-09 | 中国热带农业科学院橡胶研究所 | A kind of natural fresh latex is without ammonia preservative agent |
| CN110003541A (en) * | 2019-04-19 | 2019-07-12 | 中国热带农业科学院橡胶研究所 | A kind of low ammonia or the application without ammoniacal latex in foamed latex product |
| CN111040051A (en) * | 2019-12-13 | 2020-04-21 | 中国热带农业科学院农产品加工研究所 | Natural latex stabilizer and application thereof |
| CN113583153A (en) * | 2021-07-27 | 2021-11-02 | 海南禾木橡胶科技有限公司 | Micro-ammonia concentrated latex, pre-compounded latex, preparation method and application thereof |
| CN115710322A (en) * | 2021-08-23 | 2023-02-24 | 中国热带农业科学院橡胶研究所 | Ammonia-free composite preservative for concentrated natural latex |
| WO2023144631A1 (en) * | 2022-01-26 | 2023-08-03 | Aflatex Technologies, Lda | Ammonia-free latex compositions |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1234178A (en) * | 1998-05-05 | 1999-11-10 | 罗姆和哈斯公司 | Release-control composition |
| CN1865292A (en) * | 2006-03-22 | 2006-11-22 | 李兰桂 | Low ammonia low protein concentrated natural latex production method |
-
2012
- 2012-12-27 CN CN201210596544.XA patent/CN103113631B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1234178A (en) * | 1998-05-05 | 1999-11-10 | 罗姆和哈斯公司 | Release-control composition |
| CN1865292A (en) * | 2006-03-22 | 2006-11-22 | 李兰桂 | Low ammonia low protein concentrated natural latex production method |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565862A (en) * | 2015-10-12 | 2017-04-19 | 海南大学 | Natural latex ammonia-free preservative and preservation method thereof |
| CN108383929A (en) * | 2018-02-08 | 2018-08-10 | 中国热带农业科学院橡胶研究所 | A kind of no ammonia preserves composition and its product |
| CN109369826A (en) * | 2018-09-21 | 2019-02-22 | 昌江金达乳胶制品有限公司 | Production method of ammonia-free natural concentrated latex |
| CN109369826B (en) * | 2018-09-21 | 2020-08-21 | 昌江金达乳胶制品有限公司 | Production method of ammonia-free natural concentrated latex |
| CN109988257A (en) * | 2019-04-19 | 2019-07-09 | 中国热带农业科学院橡胶研究所 | A kind of natural fresh latex is without ammonia preservative agent |
| CN110003541A (en) * | 2019-04-19 | 2019-07-12 | 中国热带农业科学院橡胶研究所 | A kind of low ammonia or the application without ammoniacal latex in foamed latex product |
| CN111040051A (en) * | 2019-12-13 | 2020-04-21 | 中国热带农业科学院农产品加工研究所 | Natural latex stabilizer and application thereof |
| CN111040051B (en) * | 2019-12-13 | 2022-05-03 | 中国热带农业科学院农产品加工研究所 | Natural latex stabilizer and application thereof |
| CN113583153A (en) * | 2021-07-27 | 2021-11-02 | 海南禾木橡胶科技有限公司 | Micro-ammonia concentrated latex, pre-compounded latex, preparation method and application thereof |
| CN115710322A (en) * | 2021-08-23 | 2023-02-24 | 中国热带农业科学院橡胶研究所 | Ammonia-free composite preservative for concentrated natural latex |
| CN115710322B (en) * | 2021-08-23 | 2024-02-23 | 中国热带农业科学院橡胶研究所 | Concentrated natural latex ammonia-free composite preservative |
| WO2023144631A1 (en) * | 2022-01-26 | 2023-08-03 | Aflatex Technologies, Lda | Ammonia-free latex compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103113631B (en) | 2015-07-22 |
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