CN104292527A - Preparation method of N-nitrosamine-free environment-friendly latex sponge product - Google Patents
Preparation method of N-nitrosamine-free environment-friendly latex sponge product Download PDFInfo
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- CN104292527A CN104292527A CN201410465022.5A CN201410465022A CN104292527A CN 104292527 A CN104292527 A CN 104292527A CN 201410465022 A CN201410465022 A CN 201410465022A CN 104292527 A CN104292527 A CN 104292527A
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- latex
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- zinc oxide
- sulphur
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- 0 CN(*)C(SC(*)(*)CS=C(*C(N(*)*)=S)N(*)*)=S Chemical compound CN(*)C(SC(*)(*)CS=C(*C(N(*)*)=S)N(*)*)=S 0.000 description 1
Classifications
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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
- C08L7/02—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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/45—Heterocyclic compounds having sulfur in the ring
- C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
- C08K5/47—Thiazoles
-
- 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
- C08J2307/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method of an N-nitrosamine-free environment-friendly latex sponge product. The N-nitrosamine-free environment-friendly latex sponge product comprises the following raw materials in parts by weight: 100 parts of latex, 0-0.2 part of KOH, 0.5-2 parts of foaming agents, 1-3 parts of accelerating agents, 1-2 parts of anti-aging agents, 2-4 parts of sulfur, 2-4 parts of zinc oxide and 1-3 parts of sodium silicofluoride. The preparation method disclosed by the invention can be used for preparing the carcinogen nitrosamine-free latex sponge product by taking TBSI (N-tertiary butyl-bis(2-benzothiazole) sulfenamide) as an accelerating agent; the prepared sponge product is nontoxic and environment-friendly and can be applied to the fields of furniture industry, sanitation and the like.
Description
Technical field
The present invention relates to the latex foam product such as a kind of preparation method without N-nitrosamine environment-friendly type latex foam product and thus obtained latex sponge pillow, latex sponge mattress, latex sponge cushion, latex sponge car mat.
Background technology
Latex sponge is the open material of a kind of low-density porous, because it has, quality is light, shock-absorbing capacity is excellent, high resilience has special comfortable sense of touch, the ability with resistance to creep and resistance to permanent deformation and anti-microbial property etc., is widely used in many aspects such as upholstery, automotive industry, health and sports goods.Along with people are to the enhancing of health perception, require more and more higher to used latex foam product, such as, require latex sponge pillow/mattress of often using containing toxic substance, natural environmental protection, durable in use to ensure that people's is healthy.
The vulcanization system that current production latex sponge adopts is sulfur cross-linking system, and its promotor used is generally dithiocar-bamate and thiurams ultra fast accelerator, to realize low temperature high-speed vulcanization, raises labour productivity.The structure of dithiocar-bamate, thiuram is respectively as shown in structural formula (1), (2).
structural formula (1)
structural formula (2)
And dithiocarbamate(s), thiurams ultra fast accelerator are secondary amine type promotor, it easily produces the carinogenicity material of N-nitrosamine class when the vulcanization of rubber.Research shows: the carinogenicity material of N-nitrosamine class reacts primarily of secondary amine type promotor and nitrosation agent (as nitrogen oxide, nitrite etc.) and generates, as shown in reaction formula (3) in sulfidation:
reaction formula (3)
Nitrosation agent (oxynitride) is mainly derived from the absorption of air and filler.Latex sponge is in sulfidation, just may there is side reaction and decomposite secondary amine in these vulcanization accelerators based on secondary amine, and generate N-nitrosamine under certain condition with the oxynitride in air or Synergist S-421 95, nitrosamine enters human body or percutaneous absorption by the digestive tube of people and enters in body and bring out cancer, and causes huge harm to HUMAN HEALTH.
Summary of the invention
The present invention is directed to above-mentioned deficiency, research and develop a kind of preparation method without N-nitrosamine environment-friendly type latex foam product, its object is to: providing a kind of has been that promotor coming prepares not containing can the method for latex foam product of Carcinogenic Nitrosamines with the N-tertiary butyl-bis-(2-[4-morpholinodithio) sulfenamide.
Technical solution of the present invention:
Without a preparation method for N-nitrosamine environment-friendly type latex foam product, it is characterized in that: comprise following preparation process:
The first step: the preparation of raw material: latex, KOH, whipping agent, promotor, anti-aging agent, sulphur, sodium silicofluoride, zinc oxide etc., the weight of each raw material is: 100 parts, latex, KOH 0 ~ 0.2 part, whipping agent 0.5 ~ 2 part, promotor 1 ~ 3 part, 1 ~ 2 part, anti-aging agent, 2 ~ 4 parts, sulphur, 2 ~ 4 parts, zinc oxide, sodium silicofluoride 1 ~ 3 part.
Second step: sulphur, zinc oxide, promotor, anti-aging agent, sodium silicofluoride are spent respectively ionized water and make the dispersion that concentration is 20 ~ 60%;
3rd step: take latex as raw material, adds KOH, whipping agent, sulphur, promotor, anti-aging agent, is prepared into latex mixing;
4th step: latex mixing is bubbled by frothing machine, the zinc oxide that reinjects, sodium silicofluoride, obtain the latex that foams, and foaming latex, through injection molding, gelling, sulfuration, the demoulding, washing, drying, obtains latex foam product.
Described promotor is the N-tertiary butyl-bis-(2-[4-morpholinodithio) sulfenamide (TBSI).
Described anti-aging agent is 2,6 ditertiary butyl p cresol.
Described latex is one or both combinations in natural rubber latex, styrene-butadiene latex.
Described latex foam product is latex sheet material, latex sponge mattress, latex sponge pillow, latex sponge cushion, latex sponge car mat.
Beneficial effect of the present invention: the present invention is with the N-tertiary butyl-bis-(2-[4-morpholinodithio) sulfenamide (TBSI) for promotor preparation is containing can the latex foam product of Carcinogenic Nitrosamines, and obtained sponge product asepsis environment-protecting can be widely used in upholstery, health field etc.
Embodiment
Embodiment 1
The basic technology formula producing Deng Lupu latex sponge pillow is as follows:
Natural rubber latex 80 parts
Styrene-butadiene latex 20 parts
Whipping agent 1.5 parts
2.5 parts, sulphur
Accelerator TBSI 2 parts
Anti-aging agent 246(2,6-ditertbutylparacresol) 1 part
2 parts, zinc oxide
Sodium silicofluoride 1 part
KOH 0.1 part
Preparation process:
By sulphur, accelerator TBSI, zinc oxide, anti-aging agent 246, sodium silicofluoride spends ionized water respectively and makes the dispersion that concentration is 20 ~ 60%, get drc be 60% concentrated natural latex 80 parts and total solids level be 67% styrene-butadiene latex 20 parts, add 0.1 part of KOH, by mechanical stirring, ammonia content in latex is dropped to 0.2%, again by whipping agent and sulphur, accelerator TBSI, the dispersions such as anti-aging agent 246 add epoxy glue Ruzhong, after maturation for some time, latex mixing to be foamed to certain multiple by foaming machine, add zinc oxide and sodium silicofluoride, through injection model, sizing, sulfuration, the demoulding, washing and drying makes finished product.
Embodiment 2
The basic technology formula producing latex sheet material is as follows:
Natural rubber latex 90 parts
Styrene-butadiene latex 10 parts
Whipping agent 1.5 parts
2.5 parts, sulphur
Accelerator TBSI 2.5 parts
Anti-aging agent 246(2,6-ditertbutylparacresol) 1 part
2 parts, zinc oxide
Sodium silicofluoride 1 part
KOH 0.1 part
Preparation process:
First by sulphur, accelerator TBSI, zinc oxide, anti-aging agent 246, sodium silicofluoride spends ionized water respectively and makes the dispersion that concentration is 20 ~ 60%, get drc be 60% concentrated natural latex 90 parts and total solids level be 67% styrene-butadiene latex 10 parts, add 0.1 part of KOH, by mechanical stirring, ammonia content in latex is dropped to 0.2%, again by whipping agent and sulphur, accelerator TBSI, dispersions such as anti-aging agent 246 and add mixing latex, after maturation for some time, latex mixing to be foamed to certain multiple by foaming machine, add zinc oxide and sodium silicofluoride, latex foam is coated with on conveying belt, through sizing, sulfuration, the demoulding, washing and drying makes finished product.
Embodiment 3:
The basic technology formula producing Ta Lalei latex sponge pillow is as follows:
Natural rubber latex 100 parts
Whipping agent 0.5 part
2.5 parts, sulphur
Accelerator TBSI 1.5 parts
Anti-aging agent 246(2,6-ditertbutylparacresol) 1 part
2 parts, zinc oxide
Preparation process:
First sulphur, accelerator TBSI, zinc oxide, anti-aging agent 246 are spent ionized water respectively and make the dispersion that concentration is 20 ~ 60%, get the concentrated natural latex 100 parts that drc is 60%, the dispersions such as whipping agent and sulphur, accelerator TBSI, zinc oxide, anti-aging agent 246 are added natural rubber latex, after maturation for some time, latex mixing to be foamed to certain multiple by foaming machine, injection model, through vacuumizing, freezing, sulfuration, the demoulding, washing and drying makes finished product.
Claims (5)
1. without a preparation method for N-nitrosamine environment-friendly type latex foam product, it is characterized in that: comprise following preparation process:
The first step: the preparation of raw material: latex, KOH, whipping agent, promotor, anti-aging agent, sulphur, sodium silicofluoride, zinc oxide etc., the weight of each raw material is: 100 parts, latex, KOH 0 ~ 0.2 part, whipping agent 0.5 ~ 2 part, promotor 1 ~ 3 part, 1 ~ 2 part, anti-aging agent, 2 ~ 4 parts, sulphur, 2 ~ 4 parts, zinc oxide, sodium silicofluoride 1 ~ 3 part;
Second step: sulphur, zinc oxide, promotor, anti-aging agent, sodium silicofluoride are spent respectively ionized water and make the dispersion that concentration is 20 ~ 60%;
3rd step: take latex as raw material, adds KOH, whipping agent, sulphur, promotor, anti-aging agent, is prepared into latex mixing;
4th step: latex mixing is bubbled by frothing machine, the zinc oxide that reinjects, sodium silicofluoride, obtain the latex that foams, and foaming latex, through injection molding, gelling, sulfuration, the demoulding, washing, drying, obtains latex foam product.
2. as claimed in claim 1, it is characterized in that: described promotor is the N-tertiary butyl-bis-(2-[4-morpholinodithio) sulfenamide (TBSI).
3. as claimed in claim 1, it is characterized in that: described anti-aging agent is 2,6 ditertiary butyl p cresol.
4. as claimed in claim 1, it is characterized in that: described latex is one or both combinations in natural rubber latex, styrene-butadiene latex.
5. as claimed in claim 1, it is characterized in that: described latex foam product is latex sheet material, latex sponge mattress, latex sponge pillow, latex sponge cushion, latex sponge car mat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465022.5A CN104292527A (en) | 2014-09-15 | 2014-09-15 | Preparation method of N-nitrosamine-free environment-friendly latex sponge product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410465022.5A CN104292527A (en) | 2014-09-15 | 2014-09-15 | Preparation method of N-nitrosamine-free environment-friendly latex sponge product |
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| CN104292527A true CN104292527A (en) | 2015-01-21 |
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| CN201410465022.5A Pending CN104292527A (en) | 2014-09-15 | 2014-09-15 | Preparation method of N-nitrosamine-free environment-friendly latex sponge product |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832454A (en) * | 2017-02-27 | 2017-06-13 | 中国热带农业科学院农产品加工研究所 | A kind of hypoallergenic, Heveatex foam sponge product of whiteness high and preparation method thereof |
| CN107189149A (en) * | 2016-04-28 | 2017-09-22 | 东莞市芬璐家居用品有限公司 | A kind of function latex cotton |
| CN109021329A (en) * | 2018-07-06 | 2018-12-18 | 佛山皖阳生物科技有限公司 | A kind of preparation method of Heveatex composite sponge |
| CN109247857A (en) * | 2018-08-17 | 2019-01-22 | 杭州宜侬科技有限公司 | A kind of latex towel and preparation method thereof |
| CN109608722A (en) * | 2018-12-25 | 2019-04-12 | 庞贵冬 | Paralytic's pad that prevents pressure ulcers |
| CN109851870A (en) * | 2018-12-06 | 2019-06-07 | 山东玫姿蓝家纺有限公司 | A kind of latex pillow and its processing technology |
| CN110437510A (en) * | 2019-07-31 | 2019-11-12 | 中国化工株洲橡胶研究设计院有限公司 | A kind of gutta-percha/natural emulsion sponge product and preparation method thereof |
| CN112876743A (en) * | 2019-11-29 | 2021-06-01 | 中胶永生东南亚乳胶制品股份有限公司 | Vulcanization accelerator, environment-friendly latex sponge, preparation method and application |
Citations (4)
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|---|---|---|---|---|
| CN87103134A (en) * | 1987-04-26 | 1987-11-18 | 石钰镐 | Fiber latex sponge manufacture method and sponge product |
| CN1563164A (en) * | 2004-03-12 | 2005-01-12 | 南方汇通股份有限公司 | Foaming material of latex from natural fibers and fabricating method |
| CN101412822A (en) * | 2007-10-18 | 2009-04-22 | 上海莱迪科斯实业有限公司 | Natural latex foam material and preparation thereof |
| CN101756395A (en) * | 2008-11-06 | 2010-06-30 | 邓龙兴 | Preparation method of rubber glove with foaming on lining |
-
2014
- 2014-09-15 CN CN201410465022.5A patent/CN104292527A/en active Pending
Patent Citations (4)
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|---|---|---|---|---|
| CN87103134A (en) * | 1987-04-26 | 1987-11-18 | 石钰镐 | Fiber latex sponge manufacture method and sponge product |
| CN1563164A (en) * | 2004-03-12 | 2005-01-12 | 南方汇通股份有限公司 | Foaming material of latex from natural fibers and fabricating method |
| CN101412822A (en) * | 2007-10-18 | 2009-04-22 | 上海莱迪科斯实业有限公司 | Natural latex foam material and preparation thereof |
| CN101756395A (en) * | 2008-11-06 | 2010-06-30 | 邓龙兴 | Preparation method of rubber glove with foaming on lining |
Non-Patent Citations (3)
| Title |
|---|
| 廖小雪 等，: "硫化助剂对胶乳海绵性能影响的研究", 《中国热带作物学会第七次全国会员代表大会暨学术讨论会论文集》, 31 December 2004 (2004-12-31), pages 27 - 32 * |
| 白鹏 等，: "环保型促进剂TBSI在橡胶中的应用", 《世界橡胶工业》, vol. 38, no. 7, 20 July 2011 (2011-07-20), pages 10 - 16 * |
| 肖迪娥: "《新编胶乳工艺》", 31 January 2013, article "海绵制品", pages: 154 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189149A (en) * | 2016-04-28 | 2017-09-22 | 东莞市芬璐家居用品有限公司 | A kind of function latex cotton |
| CN106832454A (en) * | 2017-02-27 | 2017-06-13 | 中国热带农业科学院农产品加工研究所 | A kind of hypoallergenic, Heveatex foam sponge product of whiteness high and preparation method thereof |
| CN109021329A (en) * | 2018-07-06 | 2018-12-18 | 佛山皖阳生物科技有限公司 | A kind of preparation method of Heveatex composite sponge |
| CN109247857A (en) * | 2018-08-17 | 2019-01-22 | 杭州宜侬科技有限公司 | A kind of latex towel and preparation method thereof |
| CN109851870A (en) * | 2018-12-06 | 2019-06-07 | 山东玫姿蓝家纺有限公司 | A kind of latex pillow and its processing technology |
| CN109608722A (en) * | 2018-12-25 | 2019-04-12 | 庞贵冬 | Paralytic's pad that prevents pressure ulcers |
| CN110437510A (en) * | 2019-07-31 | 2019-11-12 | 中国化工株洲橡胶研究设计院有限公司 | A kind of gutta-percha/natural emulsion sponge product and preparation method thereof |
| CN110437510B (en) * | 2019-07-31 | 2022-02-25 | 中国化工株洲橡胶研究设计院有限公司 | Gutta-percha/natural latex sponge product and preparation method thereof |
| CN112876743A (en) * | 2019-11-29 | 2021-06-01 | 中胶永生东南亚乳胶制品股份有限公司 | Vulcanization accelerator, environment-friendly latex sponge, preparation method and application |
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Application publication date: 20150121 |