CN100398569C - Method of producing chlorinated polypropylene by water phase suspension method - Google Patents

Method of producing chlorinated polypropylene by water phase suspension method Download PDF

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CN100398569C
CN100398569C CNB200510062019XA CN200510062019A CN100398569C CN 100398569 C CN100398569 C CN 100398569C CN B200510062019X A CNB200510062019X A CN B200510062019XA CN 200510062019 A CN200510062019 A CN 200510062019A CN 100398569 C CN100398569 C CN 100398569C
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polypropylene
chlorinated polypropylene
water
phase suspension
water phase
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CN1786037A (en
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王立
王苇
俞豪杰
汪立波
周永龙
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The present invention discloses a method for producing chlorinated polypropylene by a water phase suspension method. First, polypropylene or chlorinated polypropylene is swelled by an organic solvent. Then, swelled polypropylene particles are put in a reaction vessel containing an emulsifying agent, a dispersant, an initiating agent and water, and are in a suspension state under stirring action. Chlorine gas is led into the reaction vessel for chlorination reaction after temperature rise. Further more, chlorinated polypropylene samples with the chlorine content of 15 to 60% are produced through water washing deacidification, neutralization, dehydration, injection granulation and desiccation. The method of the present invention is carried out in a hermetic container. The chlorination reaction process is completed by the chlorination of the reaction vessel in a water phase suspension state. Therefore, the present invention has the advantages of little environmental pollution, short period of chlorination reaction, convenient operation and controllable chlorine content, and can bring great economic effect. The chlorinated polypropylene produced by the technology can be used as a raw material in the industry of a flame retardant, a corrosion-proof coating, a chlorinated rubber substitute, printing ink, an adhesive, a blown thin-film additive, etc.

Description

Water phase suspension is produced the method for Chlorinated Polypropylene III
Technical field
The present invention relates to a kind of water phase suspension and produce the method for Chlorinated Polypropylene III.
Background technology
That Chlorinated Polypropylene III has is nontoxic, acidproof, water-fast, good, the easy film forming of the transparency, characteristics such as nonflammable.According to the difference of cl content, fusing point is generally at 80~160 ℃, and 180~200 ℃ of decomposition temperatures except that being insoluble to alcohol, aliphatic hydrocarbon, can be dissolved in multiple solvents such as aromatic hydrocarbons, ester class, ketone and hydrochloric ether.Chloride massfraction is 63~67% high chlorinated isotactic polypropylene, mainly as the substitute of chlorinated rubber, can be used for the fire retardant and the softening agent of impregnating material, paint adhesion agent and product of rubber and plastic; Chloride massfraction is that 20~40% low chlorinated isotactic polypropylene is mainly as good printing ink vehicle and tackiness agent, the precoated layer of coating, polypropylene film heat-sealing that also is widely used in compound oil ink, the polypropylene injection-molded item of BiOriented Polypropylene Films (BOPP) printing to be to improve the undercoat of heat sealability, polypropene pressure sensitive adhesive band, also can be used as the tackiness agent of the soft properties-correcting agent of sealing agent, polypropylene fibre of properties-correcting agent, the polypropylene pipe joint of polymkeric substance such as polypropylene and polypropylene/Al paper tinsel, polypropylene, polyethylene composite membrane etc.
At present, Chlorinated Polypropylene III is many to be made by chloride solution, and the product chlorination is even, superior performance.But consume fluorochlorohydrocarbon classes such as a large amount of tetracol phenixin in producing, this class material will cause damage to ozonosphere, does not therefore have the solid phase method of fluorochlorohydrocarbon class such as tetracol phenixin and the direction that water phase suspension is important research.Because the heat-transfer capability of solid phase method is relatively poor, the product chlorination is inhomogeneous and have problem such as product coking and can not extensively adopt.The water method is a kind of eco-friendly technology, and polypropylene carries out the chlorating novel process again through swelling earlier and do not appear in the newspapers as yet both at home and abroad.
Summary of the invention
The object of the present invention is to provide a kind of water phase suspension to produce the method for Chlorinated Polypropylene III, is earlier polypropylene to be carried out the chlorating method again through swelling earlier.Chlorination reaction process is that chlorination is finished under the aqueous-phase suspending state of a reactor.
The technical solution adopted for the present invention to solve the technical problems is that the step of this method is as follows: polypropylene or Chlorinated Polypropylene III at first carried out swelling 24~48 hours with organic solvent, then the good polypropylene particles of swelling is put into the emulsifying agent of adding, dispersion agent, initiator is respectively 1.5% of pp material weight, 4.0%, 2% and the reactor of 20~30 times of water of polypropylene weight in, under stirring action, make polypropylene particles be suspended state, heat temperature raising to 60~70 ℃, logical chlorine carries out chlorination reaction, the amount of chlorine that feeds is 0.6~6 times of polypropylene particles weight, be incubated 2 hours, drive remaining chlorine in the still away with air then, chlorizate is through the washing depickling, neutralization, dehydration, the injection moulding granulation, after the drying, can make chlorinity and be 15~60% Chlorinated Polypropylene III sample.
Described polypropylene is that isotatic polypropylene, its melt flow rate (MFR) are 19~27, and polyacrylic granularity is 40~120 orders.
Described organic solvent is a tetracol phenixin.
Described emulsifying agent is the non-ionic surfactant polyoxyethylene alkylphenol; Dispersion agent is a sodium polymethacrylate; Initiator is a benzoyl peroxide.
Described water is for filtering back clean process water, deionized water or distilled water.
The Chlorinated Polypropylene III that the present invention produced, its cl content between 15%-65%, and can be in organic solvents such as tetracol phenixin, dimethylbenzene fully dissolving, solution is clarification, no suspended substance and throw out.
The beneficial effect that the present invention has is: the swelling process of polypropylene particles of the present invention carries out in encloses container, chlorination reaction process is that chlorination is finished under the aqueous-phase suspending state of same reactor, little to environmental pollution on every side, and the chlorination reaction cycle is short, be convenient to operation, cl content and controlled can bring considerable economic.The raw material that can be used as industries such as fire retardant, protective system, chlorinated rubber substitute, printing ink, tackiness agent and blown film additive with the Chlorinated Polypropylene III of this explained hereafter.
Embodiment
Embodiment 1:
At first in an encloses container, add tetracol phenixin and isotatic polypropylene particle, swelling 24h; 2 kilograms of polypropylene particles after the swelling, Disperser Polysodium Methacrylate 80g, emulsifier polyoxyethylene alkylphenol 30g, initiator benzoyl peroxide 40g join in the 50L reactor that fills 30L water, under agitation heat up gradually, be heated to 60 ℃, logical chlorine carries out chlorination reaction, insulation 2h, stop heating afterwards, drive chlorine in the still away with uncontaminated air, chlorizate is through processes such as washing depickling, neutralization, dehydration, dryings, can make chlorinity and be 34.4% Chlorinated Polypropylene III sample I.
Embodiment 2:
Get 2 kilograms in Chlorinated Polypropylene III sample in the example 1, with tetracol phenixin swelling 24h; Chlorinated Polypropylene III sample after the swelling joins in the 50L reactor that fills 30L water, adds Disperser Polysodium Methacrylate 80g, emulsifier polyoxyethylene alkylphenol 30g, initiator benzoyl peroxide 40g afterwards again in reactor; The capping still under agitation is warming up to 60 ℃ gradually, and logical chlorine carries out chlorination reaction, insulation 2h; Stop heating, drive chlorine in the still away with uncontaminated air, chlorizate is through processes such as washing depickling, neutralization, dehydration, dryings, can make chlorinity and be 52.2% Chlorinated Polypropylene III sample II.
Embodiment 3:
Get 2 kilograms in Chlorinated Polypropylene III sample in the example 2, with tetracol phenixin swelling 24h; Chlorinated Polypropylene III sample after the swelling joins in the 50L reactor that fills 30L water, adds Disperser Polysodium Methacrylate 80g, emulsifier polyoxyethylene alkylphenol 30g, initiator benzoyl peroxide 40g afterwards again in reactor; The capping still under agitation is warming up to 60 ℃ gradually, and logical chlorine carries out chlorination reaction, insulation 2h; Stop heating, drive chlorine in the still away with uncontaminated air, chlorizate is through processes such as washing depickling, neutralization, dehydration, dryings, can make chlorinity and be 58.8% Chlorinated Polypropylene III sample III.Get the Chlorinated Polypropylene III sample III0.5 gram among the embodiment 3, under 80 ℃, be dissolved in rapidly in the dimethylbenzene of 20ml and form transparent settled solution, do not have throw out to occur after the cooling.

Claims (5)

1. water phase suspension is produced the method for Chlorinated Polypropylene III, the step that it is characterized in that this method is as follows: polypropylene or Chlorinated Polypropylene III at first carried out swelling 24~48 hours with organic solvent, then the good polypropylene particles of swelling is put into the emulsifying agent of adding, dispersion agent, initiator is respectively 1.5% of polypropylene particles weight, 4.0%, 2% and the reactor of 20~30 times of water of polypropylene particles weight in, under stirring action, make polypropylene particles be suspended state, heat temperature raising to 60~70 ℃, logical chlorine carries out chlorination reaction, the amount of chlorine that feeds is 0.6~6 times of polypropylene particles weight, be incubated 2 hours, drive remaining chlorine in the still away with air then, chlorizate is through the washing depickling, neutralization, dehydration, the injection moulding granulation, after the drying, can make chlorinity and be 15~60% Chlorinated Polypropylene III sample.
2. water phase suspension according to claim 1 is produced the method for Chlorinated Polypropylene III, and it is characterized in that: described polypropylene particles is that isotatic polypropylene, its melt flow rate (MFR) are 19~27, and polyacrylic granularity is 40~120 orders.
3. water phase suspension according to claim 1 is produced the method for Chlorinated Polypropylene III, and it is characterized in that: described organic solvent is a tetracol phenixin.
4. water phase suspension according to claim 1 is produced the method for Chlorinated Polypropylene III, and it is characterized in that: described emulsifying agent is the non-ionic surfactant polyoxyethylene alkylphenol; Dispersion agent is a sodium polymethacrylate; Initiator is a benzoyl peroxide.
5. water phase suspension according to claim 1 is produced the method for Chlorinated Polypropylene III, it is characterized in that: described water is for filtering back clean process water, deionized water or distilled water.
CNB200510062019XA 2005-12-15 2005-12-15 Method of producing chlorinated polypropylene by water phase suspension method Active CN100398569C (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102504059A (en) * 2011-10-26 2012-06-20 上海氯碱化工股份有限公司 Aqueous-phase suspension chlorination method for producing chlorinated polypropylene
CN104311708B (en) * 2014-10-30 2016-08-17 徐晨曦 A kind of method that acid phase emulsion fusion method prepares chlorination metallocene polypropylene

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB882524A (en) * 1956-03-03 1961-11-15 Hoechst Ag Manufacture of chlorinated polyethylene
US4524189A (en) * 1984-03-20 1985-06-18 The Dow Chemical Company Preparation of chlorinated polyolefins
CN1394885A (en) * 2001-07-08 2003-02-05 汪立波 Industrial production method of chlorinated polypropylene by adopting water phase suspension method and its product.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB882524A (en) * 1956-03-03 1961-11-15 Hoechst Ag Manufacture of chlorinated polyethylene
US4524189A (en) * 1984-03-20 1985-06-18 The Dow Chemical Company Preparation of chlorinated polyolefins
CN1394885A (en) * 2001-07-08 2003-02-05 汪立波 Industrial production method of chlorinated polypropylene by adopting water phase suspension method and its product.

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
氯化聚丙烯的合成技术进展. 何勇,刘海龙,刘晖.中国氯碱,第12期. 2003
氯化聚丙烯的合成技术进展. 何勇,刘海龙,刘晖.中国氯碱,第12期. 2003 *
等规聚丙烯水相氯化反应动力学研究. 宋秋生,马海红,边侠玲,徐汝云,徐卫兵.合肥工业大学学报,第28卷第3期. 2005
等规聚丙烯水相氯化反应动力学研究. 宋秋生,马海红,边侠玲,徐汝云,徐卫兵.合肥工业大学学报,第28卷第3期. 2005 *

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Assignee: Zhejiang University

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Contract record no.: 2010330002113

Denomination of invention: Method of producing chlorinated polypropylene by water phase suspension method

Granted publication date: 20080702

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Assignee: Fenghua Yuron Chemical Industry Material Co., Ltd.

Assignor: Zhejiang University

Contract record no.: 2010330002113

Denomination of invention: Method of producing chlorinated polypropylene by water phase suspension method

Granted publication date: 20080702

License type: Exclusive License

Open date: 20060614

Record date: 20101102