CN102977278A - Production technique of PVC (polyvinyl chloride) resin - Google Patents
Production technique of PVC (polyvinyl chloride) resin Download PDFInfo
- Publication number
- CN102977278A CN102977278A CN 201210526904 CN201210526904A CN102977278A CN 102977278 A CN102977278 A CN 102977278A CN 201210526904 CN201210526904 CN 201210526904 CN 201210526904 A CN201210526904 A CN 201210526904A CN 102977278 A CN102977278 A CN 102977278A
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- CN
- China
- Prior art keywords
- polyvinyl chloride
- production technique
- chloride resin
- initiator
- add
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 30
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 30
- 239000011347 resin Substances 0.000 title claims abstract description 27
- 229920005989 resin Polymers 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003999 initiator Substances 0.000 claims abstract description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 7
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims abstract description 7
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004816 latex Substances 0.000 claims abstract description 7
- 229920000126 latex Polymers 0.000 claims abstract description 7
- 239000000178 monomer Substances 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000008234 soft water Substances 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims description 9
- 239000002174 Styrene-butadiene Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000011115 styrene butadiene Substances 0.000 claims description 6
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 229940084936 gonak Drugs 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000005997 Calcium carbide Substances 0.000 description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 4
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229910014813 CaC2 Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- -1 polyoxyethylene Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a production technique of a PVC (polyvinyl chloride) resin, which is characterized by comprising the following steps: (1) adding soft water into a kettle, and meanwhile adding methyl methacrylate, styrene, butadiene-styrene latex and initiator into the kettle; (2) adding vinyl chloride monomer into the mixed solution while stirring with a stirrer all the time; (3) while stirring, adding dispersant, initiator and stabilizer, and meanwhile, heating the mixed solution to 48.3 DEG C; (4) observing the pressure meter, adding a terminator into the kettle when the pressure drops to 0.1Pa, and discharging after 10 minutes; and (5) carrying out centrifugal drying on the discharged substance to obtain the PVC resin. The production technique disclosed by the invention is convenient to operate, saves the cost, enhances the production efficiency, and has the advantages of energy saving, environmental protection and high safety.
Description
Technical field
The present invention relates to the PVC technical field, be specifically related to a kind of production technique of polyvinyl chloride resin.
Background technology
The polyvinyl chloride resin of at present China's production mainly contains tens kinds of kinds such as SG8, SG7, SG5, SG3, and wherein maximum with two kinds of polyvinyl chloride resin output of SG5, SG3, remaining resin output is less.Therefore long being restricted of the production Chang Yinwei production cycle of polyvinyl chloride resin shortened the polyoxyethylene polymerization reaction time, improve polymerization velocity, enhanced productivity, and is the problem of PVC industrial production technology area research always.
Nowadays, China produces the PVC resin and generally adopts calcium carbide route, calcium carbide (carbide of calcium CaC2), meet water and generate acetylene (C2H2), with acetylene and the synthetic vinyl chloride monomer (CH2CHCl) of making of hydrogenchloride (HCl), make vinylchlorid generate polyvinyl chloride-[CH CHCI] n-by polyreaction again.The cost of petroleum law is higher, and the vinyl chloride monomer that calcium carbide route is produced is also slightly poor qualitatively, and the pollution that calcium carbide route causes is larger.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is, provide a kind of easy to operate, save cost, enhance productivity, the production technique of energy-conserving and environment-protective, safe polyvinyl chloride resin.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of production technique of polyvinyl chloride resin may further comprise the steps:
(1) in still, adds soft water, simultaneously, in still, add methyl methacrylate, vinylbenzene, styrene-butadiene latex, initiator;
(2) in above-mentioned mixed solution, add vinyl chloride monomer, simultaneously, stir with stirrer always;
When (3) stirring, add dispersion agent, initiator, stablizer, simultaneously mixed solution is heated, make its temperature reach 48.3 ℃;
(4) observe tensimeter, when pressure drop arrives 0.1Pa, in still, add terminator, discharging after 10 minutes;
(5) material is out carried out centrifugal oven dry, the material after the oven dry is polyvinyl chloride resin.
The production technique of above-mentioned polyvinyl chloride resin, described raw material methyl methacrylate, vinylbenzene, extraordinary ester, styrene-butadiene latex were with 20: 14: 11: 55 ratio is got the raw materials ready.
The production technique of above-mentioned polyvinyl chloride resin, described stablizer are oxidation inhibitor.
The production technique of above-mentioned polyvinyl chloride resin, described initiator are dibenzoyl peroxide.
The production technique of above-mentioned polyvinyl chloride resin, described dispersion agent are that the Gonak of 1-4% and polyvinyl alcohol water solution that mass concentration is 3-6% are got the raw materials ready with the ratio of 35:65 by mass concentration.
The production technique advantage of polyvinyl chloride resin of the present invention is:
1, the production technique of polyvinyl chloride resin of the present invention has reduced cost greatly, has saved power, has reduced energy consumption, has improved plant capacity, and the production system operating safety is stable, has preferably economic benefit.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1, and a kind of production technique of polyvinyl chloride resin may further comprise the steps:
(1) in still, adds soft water, simultaneously, in still, add methyl methacrylate, vinylbenzene, styrene-butadiene latex, initiator;
(2) in above-mentioned mixed solution, add vinyl chloride monomer, simultaneously, stir with stirrer always;
When (3) stirring, add dispersion agent, initiator, stablizer, simultaneously mixed solution is heated, make its temperature reach 48.3 ℃;
(4) observe tensimeter, when pressure drop arrives 0.1Pa, in still, add terminator, discharging after 10 minutes;
(5) material is out carried out centrifugal oven dry, the material after the oven dry is polyvinyl chloride resin.
Above-mentioned raw material methyl methacrylate, vinylbenzene, extraordinary ester, styrene-butadiene latex were with 20: 14: 11: 55 ratio is got the raw materials ready.
Above-mentioned stablizer is oxidation inhibitor.
Above-mentioned initiator is dibenzoyl peroxide.
Above-mentioned dispersion agent is that the Gonak of 1-4% and polyvinyl alcohol water solution that mass concentration is 3-6% are got the raw materials ready with the ratio of 35:65 by mass concentration.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, change, interpolation or replacement all should belong to protection scope of the present invention.
Claims (5)
1. the production technique of a polyvinyl chloride resin is characterized in that: may further comprise the steps:
(1) in still, adds soft water, simultaneously, in still, add methyl methacrylate, vinylbenzene, styrene-butadiene latex, initiator;
(2) in above-mentioned mixed solution, add vinyl chloride monomer, simultaneously, stir with stirrer always;
When (3) stirring, add dispersion agent, initiator, stablizer, simultaneously mixed solution is heated, make its temperature reach 48.3 ℃;
(4) observe tensimeter, when pressure drop arrives 0.1Pa, in still, add terminator, discharging after 10 minutes;
(5) material is out carried out centrifugal oven dry, the material after the oven dry is polyvinyl chloride resin.
2. the production technique of polyvinyl chloride resin according to claim 1, it is characterized in that: described raw material methyl methacrylate, vinylbenzene, extraordinary ester, styrene-butadiene latex were with 20: 14: 11: 55 ratio is got the raw materials ready.
3. the production technique of polyvinyl chloride resin according to claim 1, it is characterized in that: described stablizer is oxidation inhibitor.
4. the production technique of polyvinyl chloride resin according to claim 1, it is characterized in that: described initiator is dibenzoyl peroxide.
5. the production technique of polyvinyl chloride resin according to claim 1 is characterized in that: described dispersion agent is that the Gonak of 1-4% and polyvinyl alcohol water solution that mass concentration is 3-6% are got the raw materials ready with the ratio of 35:65 by mass concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210526904 CN102977278A (en) | 2012-12-10 | 2012-12-10 | Production technique of PVC (polyvinyl chloride) resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210526904 CN102977278A (en) | 2012-12-10 | 2012-12-10 | Production technique of PVC (polyvinyl chloride) resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102977278A true CN102977278A (en) | 2013-03-20 |
Family
ID=47851651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210526904 Pending CN102977278A (en) | 2012-12-10 | 2012-12-10 | Production technique of PVC (polyvinyl chloride) resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102977278A (en) |
-
2012
- 2012-12-10 CN CN 201210526904 patent/CN102977278A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |