CN101289534A - Strand spinneret discharge process for polymerization reaction of 11-amino undecanoic acid monomer - Google Patents
Strand spinneret discharge process for polymerization reaction of 11-amino undecanoic acid monomer Download PDFInfo
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- CN101289534A CN101289534A CNA2008100550909A CN200810055090A CN101289534A CN 101289534 A CN101289534 A CN 101289534A CN A2008100550909 A CNA2008100550909 A CN A2008100550909A CN 200810055090 A CN200810055090 A CN 200810055090A CN 101289534 A CN101289534 A CN 101289534A
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- discharging
- acid monomer
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- casting
- gear pump
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Abstract
The invention belongs to the castor oil-producing nylon-11 engineering plastic manufacture technical field, in particular to a method for injecting belt discharging after 11-amino undecanoic acid monomer polymerization reaction. The method solves the problems that the prior poly-undecanoyl amine resin adopts the kettle type polymerization, a direct injecting belt head discharging device has low discharging speed, the discharging is not even, and is more viscous and difficult with the discharging time prolonged, the quality of the whole product is not balanced, and the maneuverability is bad, etc. In a polymerization kettle, the 11-amino undecanoic acid monomer is polymerized to generate the poly-undecanoyl amine resin at a temperature of between 230 and 260 DEG C, an injecting belt wheel pump is adopted to pressurize and the discharging injecting belt head produces the product; in the technique, the preserved temperature of the injecting belt wheel pump is between 240 and 260 DEG C, the rotating speed of the wheel pump is between 15 and 30 RPM. The method has the advantages that the discharging speed is high, the discharging is even, the problem of the difficult discharging in the later period is solved, the quality is balanced, the maneuverability is strong, the purchase and installation as well as use are easy, and the investment is saved.
Description
Technical field
The invention belongs to castor oil and produce nylon-11 engineering plastics manufacturing technology field, be specially the 11-aminoundecanoic acid monomer polymerization reactions casting discharging method that belongs in this technical process.
Background technology
Nylon 11 plant engineering plastics (H[NH (CH
2)
10CO]
nOH) be a kind of important high-tech novel material, it is an important kind of polyamide-based engineering plastics, is a kind of irreplaceable resin.It is raw material with the Viscotrol C, compares with other, has that density is little, physical strength is high, stable performance, acid and alkali-resistance, electrical insulation capability be good.Because these excellences, particular performances are widely used for numerous areas such as automotive industry, electronic apparatus, medicine equipment, ordnance and civilian industry.Existing Viscotrol C route synthetic nylon-11 (nylon 11) engineering plastics Technology is synthetic by Viscotrol C cracking, hydrogen bromide, bromine addition, freezing and crystallizing, be polymerized to gordian technique and the chemical synthesis process technology formed.Domestic 11-aminoundecanoic acid monomer polymerization is made the nylon 11 resin and is all adopted the polymerization of still formula, directly the device of a casting discharging at present.Its advantage: processing unit is simple.Shortcoming: discharging speed is slow, and inhomogeneous, increases along with discharging time prolongs viscosity, and discharging is difficulty all the more, causes the whole prod quality unbalanced, poor operability.
Summary of the invention
The present invention adopts the polymerization of still formula in order to solve existing system nylon 11 resin, directly the discharging speed that exists in the device of a casting discharging is slow, and it is inhomogeneous, along with prolonging viscosity, discharging time increases, discharging is difficulty all the more, cause the whole prod quality unbalanced, problem such as poor operability and a kind of 11-aminoundecanoic acid monomer polymerization reactions casting discharging method is provided.
The present invention is realized by following technical scheme, a kind of 11-aminoundecanoic acid monomer polymerization reactions casting discharging method, be that the polymerization under 230～260 ℃ of conditions of 11-aminoundecanoic acid monomer generates the nylon 11 resin in polymeric kettle, pressurize again by a discharging casting output finished product by the casting toothed gear pump then, casting toothed gear pump holding temperature in this technology: 240～260 ℃, toothed gear pump rotating speed: 15～30 rev/mins.
Table 1 is the quality product situation under different toothed gear pump holding temperatures and different rotating speeds situation
| The toothed gear pump holding temperature (℃) | Quality product (%) | The toothed gear pump rotating speed (rev/min) | Quality product (%) |
| 240 | 98.79 | 15 | 98.43 |
| 245 | 98.82 | 18 | 98.76 |
| 250 | 99.31 | 22 | 98.23 |
| 255 | 99.29 | 26 | 98.93 |
| 260 | 98.32 | 30 | 98.21 |
Direct casting discharging of table 2 and toothed gear pump casting discharging quality product are relatively
Compared with prior art, the present invention adopts toothed gear pump casting discharging to increase tame power traction, thereby overcomes the shortcoming of a direct casting discharging, improves the operability of this technology discharging, realizes stable operation.Technological core is to utilize toothed gear pump to help a casting discharging, realizes the stable and uniform discharging.Advantage: discharging speed is fast, even, has solved later stage discharging difficulty, and quality balance is workable, and the system purchased is installed and used simple, reduced investment.
Description of drawings
Fig. 1 is for realizing device structure synoptic diagram used in the present invention
Among the figure: 1-polymeric kettle, 2-agitator, 3-insulation jacket, the import of 4-thermal insulation medium, the outlet of 5-thermal insulation medium, 6-major ingredient charging opening, 7-auxiliary material charging opening, 8-visor mouth, 9-toothed gear pump, 10-discharging casting head, 11-valve
Embodiment
Embodiment 1: a kind of 11-aminoundecanoic acid monomer polymerization reactions casting discharging method, be that the polymerization under 260 ℃ of conditions of 11-aminoundecanoic acid monomer generates the nylon 11 resin in polymeric kettle, pressurize again by a discharging casting output finished product by the casting toothed gear pump then, casting toothed gear pump holding temperature in this technology: 240 ℃, toothed gear pump rotating speed: 30 rev/mins.
Embodiment 2: a kind of 11-aminoundecanoic acid monomer polymerization reactions casting discharging method, be that the polymerization under 230 ℃ of conditions of 11-aminoundecanoic acid monomer generates the nylon 11 resin in polymeric kettle, pressurize again by a discharging casting output finished product by the casting toothed gear pump then, casting toothed gear pump holding temperature in this technology: 260 ℃, toothed gear pump rotating speed: 15 rev/mins.
Embodiment 3: a kind of 11-aminoundecanoic acid monomer polymerization reactions casting discharging method, be that the polymerization under 250 ℃ of conditions of 11-aminoundecanoic acid monomer generates the nylon 11 resin in polymeric kettle, pressurize again by a discharging casting output finished product by the casting toothed gear pump then, casting toothed gear pump holding temperature in this technology: 255 ℃, toothed gear pump rotating speed: 20 rev/mins.
Claims (1)
1, a kind of 11-aminoundecanoic acid monomer polymerization reactions casting discharging method, it is characterized in that, the polymerization under 230～260 ℃ of conditions of 11-aminoundecanoic acid monomer generates the nylon 11 resin in polymeric kettle, pressurize again by a discharging casting output finished product by the casting toothed gear pump then, casting toothed gear pump holding temperature in this technology: 240～260 ℃, toothed gear pump rotating speed: 15～30 rev/mins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100550909A CN101289534A (en) | 2008-06-12 | 2008-06-12 | Strand spinneret discharge process for polymerization reaction of 11-amino undecanoic acid monomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100550909A CN101289534A (en) | 2008-06-12 | 2008-06-12 | Strand spinneret discharge process for polymerization reaction of 11-amino undecanoic acid monomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101289534A true CN101289534A (en) | 2008-10-22 |
Family
ID=40033992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100550909A Pending CN101289534A (en) | 2008-06-12 | 2008-06-12 | Strand spinneret discharge process for polymerization reaction of 11-amino undecanoic acid monomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101289534A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709399A (en) * | 2013-11-29 | 2014-04-09 | 中蓝晨光化工研究设计院有限公司 | Technology for preparing nylon 11 by 11-aminoundecanoic acid normal-pressure melt polymerization |
| CN107312170A (en) * | 2017-08-09 | 2017-11-03 | 无锡殷达尼龙有限公司 | A kind of process for preparing nylon 12 for monomer with long chain amino acid |
-
2008
- 2008-06-12 CN CNA2008100550909A patent/CN101289534A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709399A (en) * | 2013-11-29 | 2014-04-09 | 中蓝晨光化工研究设计院有限公司 | Technology for preparing nylon 11 by 11-aminoundecanoic acid normal-pressure melt polymerization |
| CN103709399B (en) * | 2013-11-29 | 2016-04-27 | 中蓝晨光化工研究设计院有限公司 | A kind of 11-aminoundecanoic acid normal pressure melt polymerization prepares the technique of nylon 11 |
| CN107312170A (en) * | 2017-08-09 | 2017-11-03 | 无锡殷达尼龙有限公司 | A kind of process for preparing nylon 12 for monomer with long chain amino acid |
| CN107312170B (en) * | 2017-08-09 | 2020-05-05 | 无锡殷达尼龙有限公司 | Process method for preparing nylon 12 by using long-chain amino acid as monomer |
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Open date: 20081022 |