CN101759823A - Photo-initiation preparation method for chlorinated polypropylene - Google Patents
Photo-initiation preparation method for chlorinated polypropylene Download PDFInfo
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- CN101759823A CN101759823A CN 201010119926 CN201010119926A CN101759823A CN 101759823 A CN101759823 A CN 101759823A CN 201010119926 CN201010119926 CN 201010119926 CN 201010119926 A CN201010119926 A CN 201010119926A CN 101759823 A CN101759823 A CN 101759823A
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Abstract
The invention discloses a water phase preparation method for chlorinated polypropylene. The method comprises the following steps: introducing chlorine gas into the mixture of polypropylene and water for reaction under the illumination of ultraviolet light to generate the chlorinated polypropylene; stopping introducing the chlorine gas until the weight content of chlorine in the chlorinated polypropylene reaches 20-70%; and collecting the chlorinated polypropylene in the obtained product after the reaction ends. The method of the invention has simple operation, is convenient for industrialized production, does not use any auxiliaries, and the product is convenient to process and environment-friendly, and a large amount of hydrochloric acid is produced as the byproduct.
Description
Technical field
The present invention relates to the preparation method of Chlorinated Polypropylene III.
Background technology
Chlorinated Polypropylene III (being called for short CPP, down together) can be divided into two classes:
High Chlorinated Polypropylene III: chlorination degree is 63～67%; Purposes: the surrogate of chlorinated rubber, the tackiness agent of printing ink and paint, and the additive of inflammable substance.
Low Chlorinated Polypropylene III: chlorination degree is in 20～40% (comprising Hardlen); Purposes: be mainly used in tamanori, at first be used for the thermosealed precoated layer of polypropylene film; The printing-ink of polypropylene product and the vehicle of paint.
Polyolefinic chlorination has had extensive studies, but since polyacrylic poorly soluble, so the report of relevant Chlorinated Polypropylene III is seldom.The isotatic polypropylene dissolving needs quite high temperature.This just makes the homogeneous phase chlorination very difficult.
CPP is made through chlorination reaction by polypropylene, and at present, production method mainly contains chloride solution (is solvent with the tetracol phenixin), aqueous suspension chlorination method and chlorination by solid state method.
Chloride solution is one of the most frequently used method of present industrial production CPP, and characteristics are that chlorination is more even, and reaction is than being easier to control, and the product cl content generally can reach 53%～63%, can satisfy industry requirement of actual application such as coating, tackiness agent.Weak point is that the solvent loss amount is big in the production process, and the production cost height has remaining solvent in the product, of low quality, and environmental pollution is serious in the production process.Because the signing of Montreal Protocol on Substances that Deplete the Ozone Layer, developed country has closed how tame carbon tetrachloride method CPP production equipment nineteen ninety-five, then adopts aqueous suspension chlorination method to produce.
Aqueous suspension chlorination method product cl content is the highest can to reach 65%.This method technology is simple, easy to operate, and production cost is low, and weak point is that requirement equipment has good anti-corrosion, and the chlorination degree of products obtained therefrom is inhomogeneous, and cohesive strength is lower during as tackiness agent.Developed country such as the U.S., Japan all adopts this method to produce CPP.
Chlorination by solid state method technology is simple, and equipment corrosion is little, the product purity height, and production cost is low, the no waste discharging, but it belongs to inhomogeneous reaction, and chlorination is inhomogeneous, and reaction heat is removed difficulty, and easily coking, variable color and bonding are so seldom adopt in industrial production.
The water method is the vanguard technology technology of wideling popularize at present, and this method technology is simple, easy to operate, and production cost is low, as in the Chinese chlor-alkali by the technology of report such as He Yong.But this present technology still needs to make used additives, and severe reaction conditions, the product postprocessing complexity, and quality product is wayward, and the auxiliary agent that uses in this method has adverse influence to environment, so this method is needed improvement badly.
Summary of the invention
The photo-initiation preparation method that the purpose of this invention is to provide a kind of Chlorinated Polypropylene III is to overcome the above-mentioned defective that prior art exists.
Method of the present invention comprises the steps:
Chlorine is fed the mixture of polypropylene and water, under the irradiation of UV-light, react, generate Chlorinated Polypropylene III, react to the weight content of the chlorine of Chlorinated Polypropylene III be 20%～70%, stop logical chlorine, reaction finishes, and collects Chlorinated Polypropylene III then from reaction product;
The weight content of the chlorine of Chlorinated Polypropylene III is defined as follows:
In the mixture of polypropylene and water, polyacrylic weight content is 3～15%;
Temperature of reaction is 30～120 ℃;
Reaction pressure is 0.1MPa～1MPa;
Preferably, the reaction times is 60min～180min;
The ultraviolet light wavelength is 365nm; Described UV-light can obtain by ultra-violet lamp, and is general, and the power of unit weight material is 200～7000W/kg;
Described polyacrylic number-average molecular weight is preferably 200,000～300,000, and preferably adopting median size is 140 orders～180 purpose particles;
Preferably, reaction is under agitation carried out;
Method of the present invention, simple to operate, be convenient to suitability for industrialized production, and this method do not use any auxiliary agent, product is handled convenient, and is environmentally friendly, the hydrochloric acid that by-product is a large amount of.
Description of drawings
Fig. 1 is the structure of reactor synoptic diagram
Embodiment
Fig. 1 is used to realize reactor of the present invention, and referring to Fig. 1, described reactor comprises housing 1, whipping appts 2 and ultraviolet lamp 3;
Described whipping appts 2 is arranged on the middle part of reactor shell, and described ultraviolet lamp 3 is arranged in the housing 1.
With particle diameter is that 120 purpose polypropylene 90g and 450g water together add in the reactor, is heated to 70 ℃, treats to feed chlorine and open ultra-violet lamp (wavelength: 365nm, power: 70W), keep reaction pressure 0.5MPa, the end of 80min afterreaction after the homo(io)thermism.The pH value that the product of gained repeatedly is washed to washing lotion is that dry to constant weight under 70 ℃ 7 backs, and promptly getting cl content is the Chlorinated Polypropylene III finished product of 32% (Wt%).
The polyacrylic data molecular weight of raw material is 300,000.
With particle diameter is that 120 purpose polypropylene 28.96g and 550g water together add in the reactor, is heated to 70 ℃, treats to feed chlorine and open ultra-violet lamp (wavelength: 365nm, power: 70W), keep reaction pressure 0.45MPa, the end of 6h afterreaction after the homo(io)thermism.After the pH value that the product of gained repeatedly is washed to washing lotion is 7, dry to constant weight under 70 ℃, promptly getting cl content is the Chlorinated Polypropylene III finished product of 55% (Wt%).The polyacrylic data molecular weight of raw material is 300,000.
With particle diameter is that 160 purpose polypropylene 28.96g and 550ml water together add in the reactor, is heated to 70 ℃, treats to feed chlorine and open ultra-violet lamp (wavelength: 365nm, power: 70W), keep reaction pressure 0.5MPa, the end of 4.5h afterreaction after the homo(io)thermism.The pH value that the product of gained repeatedly is washed to washing lotion is that dry to constant weight under 70 ℃ 7 backs, and promptly getting cl content is the Chlorinated Polypropylene III finished product of 67% (Wt%).The polyacrylic data molecular weight of raw material is 300,000.
Claims (7)
1. the aqueous phase preparation method of Chlorinated Polypropylene III, it is characterized in that, comprise the steps: chlorine is fed the mixture of polypropylene and water, under the irradiation of UV-light, react, generate Chlorinated Polypropylene III, react to the weight content of the chlorine of Chlorinated Polypropylene III be 20%～70%, stop logical chlorine, reaction finishes, and collects Chlorinated Polypropylene III then from reaction product.
2. method according to claim 1 is characterized in that, in the mixture of polypropylene and water, polyacrylic weight content is 3～15%.
3. method according to claim 1 is characterized in that, temperature of reaction is 30～120 ℃; Reaction pressure is 0.1MPa～1MPa.
4. method according to claim 1 is characterized in that, the reaction times is 60min～360min.
5. method according to claim 1 is characterized in that, the ultraviolet light wavelength is 280nm～460nm; The power of the UV-light of unit weight material is 200～7000W/kg.
6. method according to claim 1 is characterized in that, described polyacrylic number-average molecular weight is 200,000～300,000, and adopting median size is 40 orders～180 purpose particles.
7. method according to claim 1 is characterized in that, reaction is under agitation carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010119926 CN101759823A (en) | 2010-03-09 | 2010-03-09 | Photo-initiation preparation method for chlorinated polypropylene |
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| CN 201010119926 CN101759823A (en) | 2010-03-09 | 2010-03-09 | Photo-initiation preparation method for chlorinated polypropylene |
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| CN 201010119926 Pending CN101759823A (en) | 2010-03-09 | 2010-03-09 | Photo-initiation preparation method for chlorinated polypropylene |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675497A (en) * | 2011-12-12 | 2012-09-19 | 河南科技大学 | Method for preparing brominated polypropylene |
| CN104024282A (en) * | 2012-02-17 | 2014-09-03 | 东洋纺株式会社 | Polymer composition containing oxidation-modifiable chlorinated propylene and method for producing same |
| TWI452054B (en) * | 2011-11-07 | 2014-09-11 | Kaneka Corp | Production method of chlorinated vinyl chloride resin |
| CN106397642A (en) * | 2015-07-29 | 2017-02-15 | 瑞来斯实业公司 | A process for chlorination of a polymer |
| CN106459253A (en) * | 2014-05-02 | 2017-02-22 | 瑞来斯实业有限公司 | Dispersing agent for suspension polymerization of vinyl compound |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995074A (en) * | 2007-01-12 | 2007-07-11 | 北京化工大学 | Method for preparing chlorinated polypropylene using semi-water phase method |
| CN101333266A (en) * | 2008-07-25 | 2008-12-31 | 北京化工大学 | Method for preparing chlorinated polypropylene by heterogeneous mixed solvent method |
-
2010
- 2010-03-09 CN CN 201010119926 patent/CN101759823A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995074A (en) * | 2007-01-12 | 2007-07-11 | 北京化工大学 | Method for preparing chlorinated polypropylene using semi-water phase method |
| CN101333266A (en) * | 2008-07-25 | 2008-12-31 | 北京化工大学 | Method for preparing chlorinated polypropylene by heterogeneous mixed solvent method |
Non-Patent Citations (2)
| Title |
|---|
| 《化学工业》 20090831 耿建铭 氯化聚丙烯的生产及合成技术研究进展 第38－42页 1-7 第27卷, 第8期 2 * |
| 《精细化工》 20000731 叶庆国等 无溶剂光氯化悬浮法制备低氯化度的氯化等规聚丙烯 第388页第1.2部分，第389页第2.1，2.2部分 1-7 第17卷, 第7期 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI452054B (en) * | 2011-11-07 | 2014-09-11 | Kaneka Corp | Production method of chlorinated vinyl chloride resin |
| US9056959B2 (en) | 2011-11-07 | 2015-06-16 | Kaneka Corporation | Method for producing chlorinated vinyl chloride resin |
| CN102675497A (en) * | 2011-12-12 | 2012-09-19 | 河南科技大学 | Method for preparing brominated polypropylene |
| CN104024282A (en) * | 2012-02-17 | 2014-09-03 | 东洋纺株式会社 | Polymer composition containing oxidation-modifiable chlorinated propylene and method for producing same |
| CN106459253A (en) * | 2014-05-02 | 2017-02-22 | 瑞来斯实业有限公司 | Dispersing agent for suspension polymerization of vinyl compound |
| CN106397642A (en) * | 2015-07-29 | 2017-02-15 | 瑞来斯实业公司 | A process for chlorination of a polymer |
| CN106397642B (en) * | 2015-07-29 | 2021-03-23 | 瑞来斯实业公司 | Method for chlorinating polymer |
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Open date: 20100630 |