CN104530264A - Preparation method for producing chlorinated rubber - Google Patents
Preparation method for producing chlorinated rubber Download PDFInfo
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- CN104530264A CN104530264A CN201410835697.4A CN201410835697A CN104530264A CN 104530264 A CN104530264 A CN 104530264A CN 201410835697 A CN201410835697 A CN 201410835697A CN 104530264 A CN104530264 A CN 104530264A
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- chlorinated rubber
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- chlorinated
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Abstract
The invention discloses a preparation method for producing chlorinated rubber, and relates to the technical field of rubber production. The method comprises three steps of degradation, chlorination and elutriation. The preparation method for producing the chlorinated rubber disclosed by the invention is simple in preparation process, environment-friendly in production, and relatively high in preparation rate; the main content can be up to over 99%; and the technical indexes completely accord with the operating requirements.
Description
Technical field
The present invention relates to technical field of rubber production, be specifically related to a kind of chlorinated rubber preparation method.
Background technology
Chlorinated rubber (CN R) is a kind of important film forming material, and outward appearance is white powder, tasteless nontoxic, and apparent density is 0. 25 ~ 0. 45g/cm3, cl content >=63%, thermal stable temperature 130 DEG C.It is raw material by natural rubber, carries out chlorination in organic solvent, then through precipitation, the operation such as refining and making.It has excellent film-forming properties, adhesivity and chemical stability, is widely used in and manufactures marine paint, freight container paint, chemical anticorrosion paint, flame retardant paint etc.Its paint film has the advantages such as water-tolerant, quick-drying, erosion resistance are strong, good weatherability.Meanwhile, chlorinated rubber also can make the raw material of tackiness agent.Along with the capital construction of China coast city, the develop rapidly of the industry such as harbour, vessel traffic, increasing to the demand of the high-grade protective system of chlorinated rubber series, but existing manufacturing requirements is high, and preparation rate is lower.
Summary of the invention
It is simple that problem to be solved by this invention is to provide a kind of production technique, a kind of chlorinated rubber preparation method that preparation rate is higher.
To achieve these goals, the technical scheme that the present invention takes is: a kind of chlorinated rubber preparation method, comprises following processing step:
(1) degrade, natural rubber is placed in rubber mixing machine and plasticates, then by this rubber solution in tetracol phenixin, add catalyzer, heat up carry out chemical degradation;
(2) chlorination, in special purpose reactor, carry out chlorination at a certain temperature, control logical chlorine speed and logical chlorine dose, chlorinated exhaust absorbs through secondary water, make hydrogenchloride become by-product hydrochloric acid, chlorine becomes by-product clorox through Alkali absorption, the tetracol phenixin carried secretly through skimmer Separation and Recovery, apply mechanically;
(3) elutriation, chlorinated rubber parses from solvent.
Preferably, described step (1) by add iodine catalyst, carry out chemical degradation at 85-90 DEG C.
Preferably, in described step (2) in special purpose reactor, chlorination is carried out at 70 DEG C.
Adopt chlorinated rubber preparation method of the present invention, first, natural rubber is placed in rubber mixing machine and plasticates, then by this rubber solution in tetracol phenixin, add catalyzer, chemical degradation is carried out in intensification, then, in special purpose reactor, carry out chlorination at a certain temperature, control logical chlorine speed and logical chlorine dose, chlorinated exhaust absorbs through secondary water, make hydrogenchloride become by-product hydrochloric acid, chlorine becomes by-product clorox through Alkali absorption, the tetracol phenixin carried secretly through skimmer Separation and Recovery, apply mechanically; Finally, parsed by chlorinated rubber from solvent, this scheme, relate to three operations, preparation technology is simple, and production environmental protection, preparation rate is higher, and technical indicator meets service requirements completely.
Embodiment
A kind of chlorinated rubber preparation method, comprises following processing step:
(1) degrade, natural rubber is placed in rubber mixing machine and plasticates, then by this rubber solution in tetracol phenixin, add iodine catalyst, carry out chemical degradation at 85-90 DEG C;
(2) chlorination, in special purpose reactor, carries out chlorination at 70 DEG C, controls logical chlorine speed and logical chlorine dose, and chlorinated exhaust absorbs through secondary water, and make hydrogenchloride become by-product hydrochloric acid, chlorine is inhaled through alkali
Receipts become by-product clorox, the tetracol phenixin carried secretly through skimmer Separation and Recovery, apply mechanically;
(3) elutriation, chlorinated rubber parses from solvent.
Based on above-mentioned, adopt chlorinated rubber preparation method of the present invention, preparation technology is simple, and production environmental protection, its main content is up to more than 99%, and preparation rate is higher, and technical indicator meets service requirements completely.
Obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (3)
1. a chlorinated rubber preparation method, comprises following processing step:
(1) degrade, natural rubber is placed in rubber mixing machine and plasticates, then by this rubber solution in tetracol phenixin, add catalyzer, heat up carry out chemical degradation;
(2) chlorination, in special purpose reactor, carry out chlorination at a certain temperature, control logical chlorine speed and logical chlorine dose, chlorinated exhaust absorbs through secondary water, make hydrogenchloride become by-product hydrochloric acid, chlorine becomes by-product clorox through Alkali absorption, the tetracol phenixin carried secretly through skimmer Separation and Recovery, apply mechanically;
(3) elutriation, chlorinated rubber parses from solvent.
2. the chlorinated rubber preparation method as described in claim 1, is characterized in that: described step (1) by add iodine catalyst, carry out chemical degradation at 85-90 DEG C.
3. the chlorinated rubber preparation method as described in claim 1, is characterized in that: in described step (2) in special purpose reactor, carry out chlorination at 70 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835697.4A CN104530264A (en) | 2014-12-30 | 2014-12-30 | Preparation method for producing chlorinated rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835697.4A CN104530264A (en) | 2014-12-30 | 2014-12-30 | Preparation method for producing chlorinated rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104530264A true CN104530264A (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410835697.4A Pending CN104530264A (en) | 2014-12-30 | 2014-12-30 | Preparation method for producing chlorinated rubber |
Country Status (1)
| Country | Link |
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| CN (1) | CN104530264A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504367A (en) * | 2015-11-24 | 2016-04-20 | 安徽欧耐橡塑工业有限公司 | High-performance chlorinated rubber formula |
| CN108409891A (en) * | 2018-04-04 | 2018-08-17 | 江蔓青 | A kind of chlorinated rubber preparation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974606A (en) * | 2006-12-20 | 2007-06-06 | 福州大学 | Low acid value solvent process of preparing chlorinated rubber |
-
2014
- 2014-12-30 CN CN201410835697.4A patent/CN104530264A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974606A (en) * | 2006-12-20 | 2007-06-06 | 福州大学 | Low acid value solvent process of preparing chlorinated rubber |
Non-Patent Citations (1)
| Title |
|---|
| 廖双泉等: "《天然橡胶改性与应用》", 30 June 2007, article "天然橡胶改性与应用", pages: 20 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504367A (en) * | 2015-11-24 | 2016-04-20 | 安徽欧耐橡塑工业有限公司 | High-performance chlorinated rubber formula |
| CN108409891A (en) * | 2018-04-04 | 2018-08-17 | 江蔓青 | A kind of chlorinated rubber preparation method |
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Application publication date: 20150422 |
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| RJ01 | Rejection of invention patent application after publication |