CN102329467B - Polyvinyl chloride pipeline and preparation method thereof - Google Patents
Polyvinyl chloride pipeline and preparation method thereof Download PDFInfo
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- CN102329467B CN102329467B CN201110212679.7A CN201110212679A CN102329467B CN 102329467 B CN102329467 B CN 102329467B CN 201110212679 A CN201110212679 A CN 201110212679A CN 102329467 B CN102329467 B CN 102329467B
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- polyvinyl chloride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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Abstract
The invention relates to the technical field of polyvinyl chloride (PVC) pipelines, in particular to a polyvinyl chloride pipeline with a good flame-retardant and smoke-eliminating effect and a preparation method thereof. The polyvinyl chloride pipeline is prepared from the following raw materials in part by weight: 100 parts of polyvinyl chloride resin, 0.5 to 6 parts of thermal stabilizer, 0.5 to 3 processing aid, 0 to 5 parts of impact modifier, 0.5 to 5 parts of flame-retardant and smoke-eliminating modifier, 0.5 to 2.5 parts of lubricating agent, 0.01 to 5 parts of pigment and 3 to 15 parts of calcium carbonate. The smoke-eliminating performance of the polyvinyl chloride pipeline is emphasized, a phenomenon that dark smoke billows when the conventional PVC pipeline is on fire is improved, and the polyvinyl chloride pipeline has the characteristics of flame retardancy, smoke elimination, high strength and the like, and maintains good physical and mechanical properties and forming processability of the conventional pipeline.
Description
Technical field
The present invention relates to polyvinyl chloride pipeline technical field, relate in particular to a kind of fire-retardant and polyvinyl chloride pipeline that smoke effect is good and preparation method thereof.
Background technology
PVC plastics are the fourth-largest class material of construction after steel, timber, cement, have that energy consumption is low, quality is light, corrosion-resistant, good weatherability, intensity advantages of higher, especially there is nonflammable feature, in building water supply and drainage, spool field, be widely used.But, causing death's arch-criminal when the dense smoke producing during PVC Plastics Combustion has toxicity and is fire again.For this reason, the research of plastics technique for smoke becomes the most popular research topic in plastics field in recent years.At present, PVC plastic flame is mainly to adopt addition type technology with eliminating smoke.
Existing Chinese patent notification number CN1107487A discloses a kind of health flame-retardant ABS/PVC injection alloy, and Chinese patent notification number CN1120563A discloses a kind of fire-retardant PVC injection alloy, the disclosed material of above-mentioned patent has good flame retardant effect and processing characteristics, but also only relate to fire-retardant aspect, smoke elimination aspect relates to seldom or at all and not relating to, although flame retardant effect is good, while burning, smoke density is large, and Dark smoke billows.
Chinese patent notification number CN1651505A discloses a kind of heat resistant smoke inhibiting polyvinyl chloride and preparation method thereof, the PVC composition of this smoke elimination has good smoke effect, but this composition has individual defect, the strength of materials is not high enough, the polymerization degree≤700 of resin-oatmeal, can be used for injection moulding finishing material, but be not suitable for feedwater field, be not especially suitable for pressure pipeline field.
Summary of the invention
The invention provides a kind of polyvinyl chloride pipeline, good flame retardation effect but burning time can not produce thick smoke, and smoke effect is good.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A polyvinyl chloride pipeline, is characterized in that, consists of by weight following raw material:
100 parts of polyvinyl chloride (PVC) RESINS
Thermo-stabilizer 0.5-6 part
Processing aid 0.5-3 part
Anti-impact modifier 0-5 part
Flame retardancy and smoke suppression properties-correcting agent 0.5-5 part
Lubricant 0.5-2.5 part
Pigment 0.01-5 part
Calcium carbonate 3-15 part.
In such scheme, described polyvinyl chloride (PVC) RESINS is SG type polyvinyl chloride (PVC) RESINS.
In such scheme, described thermo-stabilizer is a kind of in calcium-zinc composite stabilizing agent and organotin stabilizer.
In such scheme, the umber of described calcium-zinc composite stabilizing agent is 2.5-6 part.
In such scheme, the umber of described organotin stabilizer is 0.5-1.8 part.
In such scheme, described processing aid is acrylic ester compound.
In such scheme, described anti-impact modifier is a kind of in MBS type anti-impact modifier and ACR type anti-impact modifier.
In such scheme, described flame retardancy and smoke suppression properties-correcting agent is that organic ferrocene or molybdenum are one or more in smoke suppressor, and wherein, organic ferrocene and molybdenum are that smoke suppressor comprises ferrocene, molybdenum oxide, nickel molybdate, zinc molybdate, calcium molybdate, ammonium octamolybdate.
In such scheme, described pigment is carbon black, oiling is black and titanium dioxide in one or more, wherein, the umber that carbon black or oiling are black is 0-0.08 part, the umber of titanium hundred powder is 1-5 part.
Another object of the present invention is to provide a kind of preparation method of polyvinyl chloride pipeline.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A preparation method for polyvinyl chloride pipeline, comprises the following steps:
After mixing according to each feed composition, add in the hot mixer of high speed and carry out blending dispersion, when temperature reaches 110-120 ℃, enter and in cold mixer, stir coolingly, when temperature drops to 45-50 ℃, enter hopper stand-by; Mixed ingredients stand-by in described hopper is added to twin screw extruder plasticizing, mould molding.Wherein, described twin screw extruder is conical double screw extruder, and its barrel zone temperature is set to 160-185 ℃, and mould molding temperature is 175-220 ℃.
Compared with prior art, the invention has the beneficial effects as follows:
Polyvinyl chloride pipeline of the present invention is on the good basis of original polyvinyl chloride pipeline flame retardant properties, improved emphatically its smoke elimination performance, improved the phenomenon that when original pvc pipe road catches fire, Dark smoke billows, the features such as that this pipeline is taken into account is fire-retardant, smoke elimination, high strength, and kept the good physical and mechanical properties of original pipeline and moulding processability.This polyvinyl chloride pipeline can be widely used in the water-feeding & drainaging pipeline in buildings, be applicable to the water-feeding & drainaging pipeline in buildings, the laying of threading pipeline, be particularly useful for the fields such as the concentrated commercial mansion of flow of the people, Highrise buildings, the dense smoke that in the time of can effectively reducing presence of fire, plastic conduit burning produces.
Embodiment
The embodiment of polyvinyl chloride pipeline of the present invention, is comprised of following raw material by weight:
100 parts of polyvinyl chloride (PVC) RESINS
Thermo-stabilizer 0.5-6 part
Processing aid 0.5-3 part
Anti-impact modifier 0-5 part
Flame retardancy and smoke suppression properties-correcting agent 0.5-5 part
Lubricant 0.5-2.5 part
Pigment 0.01-5 part
Calcium carbonate 3-15 part.
Said components adopts Recompounded multielement technology, and collaborative playing a role, has effectively improved the impact on system intensity and toughness that adds of smoke suppressor, and the performance index of this pipeline meet GB requirement.
Stablizer adopts A Kema T178A(trade(brand)name) organotin stabilizer hygienic environment-protecting, stopped lead salt stabilizer system health hazard.
Impact modifier adopts A Kema D200 (trade(brand)name) ACR particles of types type anti-impact, and first the agent of corpuscular type anti-impact carrys out apparatus with shock absorbing by nucleocapsid structure, and this mode is little to complete processing dependency, more easily brings into play effect.CPE class anti-impact modifier is to disperse external shock energy by forming network structure, and this mode is larger to complete processing dependency, and the situation of improving that the height of temperature or the power of screw rod shearing all can form CPE anti-impact network gives important impact.Meanwhile, CPE contains suitable cl content, uses and can obviously increase smoke density in body series.Use the agent of ACR particles of types type anti-impact can active balance toughness of material and the contradiction of this two aspect of smoke density.
The main consideration of selecting of smoke elimination properties-correcting agent and fire retardant promotes into the formation of phenyl ring compound and but cigarette in charcoal and minimizing combustion processes.
Organic ferrocene and molybdenum class smoke suppressor are conventional PVC plastics smoke suppressor, and wherein ferrocene can be converted into rapidly a-Fe in PVC combustion processes
2o
3be present in carburization zone, ferrocene, in the de-HCl process of PVC, can also consume HCl in a large number simultaneously, makes it to generate FeCl
2and FeCl
3, reduce HCl and form harmful toxicant.So ferrocene has to PVC smoke elimination and reduces the dual function of toxicity.And molybdenum be the mechanism of action of the smoke suppressor Lewis acid based in system in action.Lewis acid forms polyenoid class material after the de-HCl of catalysis PVC effectively, generates the intramolecular cyclization compound of polynuclear plane after the de-HCl of prevention polyoxyethylene, thus the burst size (will produce a large amount of dense smoke while burning because of benzene) of benzene while reducing material combustion.Become charcoal and smoke elimination to work in coordination with, the generation of the dense smoke effectively reducing.
The present embodiment polyvinyl chloride pipeline is on the good basis of original polyvinyl chloride pipeline flame retardant properties, improved emphatically its smoke elimination performance (smoke density is down to below 60%), improved the phenomenon that when original pvc pipe road catches fire, Dark smoke billows, and the excellent mechanical properties that has kept original pipeline, health is nontoxic.
The present embodiment polyvinyl chloride pipeline is on the good basis of original polyvinyl chloride pipeline flame retardant properties, improved emphatically its smoke elimination performance (smoke density is down to below 60%), improved the phenomenon that when original pvc pipe road catches fire, Dark smoke billows, the features such as that this pipeline is taken into account is fire-retardant, smoke elimination, high strength, and the good physical and mechanical properties of original pipeline and moulding processability have been kept, the nontoxic and environmental protection of health.This polyvinyl chloride pipeline can be widely used in the water-feeding & drainaging pipeline in buildings, be applicable to the water-feeding & drainaging pipeline in buildings, the laying of threading pipeline, be particularly useful for the fields such as the concentrated commercial mansion of flow of the people, Highrise buildings, the dense smoke that in the time of can effectively reducing presence of fire, plastic conduit burning produces.
The preparation method of the present embodiment polyvinyl chloride pipeline, comprises the following steps:
After mixing according to each feed composition, add in the hot mixer of high speed and carry out blending dispersion, when temperature reaches 110-120 ℃, enter and in cold mixer, stir coolingly, when temperature drops to 45-50 ℃, enter hopper stand-by; Mixed ingredients stand-by in described hopper is added to twin screw extruder plasticizing, mould molding.Wherein, described twin screw extruder is conical double screw extruder, and its barrel zone temperature is set to 160-185 ℃, and mould molding temperature is 175-220 ℃.
The outstanding feature that the high fire prevention of embodiment of the present invention smoke elimination pvc pipe road is succeeded in developing, except excellent performance, on producing, adopt direct powder extrusion moulding, to reducing energy consumption, labor consumption, material consumption, shortening the process-cycle, enhance productivity, reducing to produce originally has positive meaning.Succeeding in developing and a large amount of difficult appearance of firing few cigarette materials for construction of the high fire prevention of smoke elimination pvc pipe road, to the development of PVC materials for construction be played a part to positive promotion undoubtedly, will be raising China's construction engineering quality and function, and in energy-saving and environmental protection, to mould Dai Gang, to obtain obvious economic benefit and social benefit to mould the aspects such as Dai Mu.
Below in conjunction with embodiment, the present invention is further illustrated.
1, material component (parts by weight):
| Material | Trade names | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Polyvinyl chloride (PVC) RESINS | Gold road SG-5 | 100 | 100 | 100 | 100 |
| Calcium zinc stabilizer | CZ-968 | 4.0 | 0 | 0 | 0 |
| Organotin stabilizer | T-178A | 0 | 1.0 | 1.0 | 1.0 |
| Processing aid | LPA-40 | 0.6 | 1.0 | 1.0 | 1.0 |
| The agent of ACR anti-impact | D200 | 0 | 3 | 2 | 5 |
| The agent of MBS anti-impact | B-56 | 3 | 0 | 2 | 0 |
| Flame retardancy and smoke suppression properties-correcting agent | Eight amine molybdates | 3 | 2 | 1 | 0 |
| Flame retardancy and smoke suppression properties-correcting agent | Ferrocene | 1.5 | 2 | 0 | 2 |
| Lubricant | PE wax | 0.4 | 0.8 | 0.6 | 1.0 |
| Lubricant | Stearic acid 1840 | 0.2 | 0.4 | 0.2 | 0.3 |
| Pigment | Carbon black | 0.01 | 0 | 0.05 | 0.02 |
| Pigment titanium white | NR-950 | 2.5 | 5 | 1.0 | 3 |
| Calcium carbonate | BT-3 | 3 | 5 | 10 | 15 |
2, mix:
Each component is put into high low speed mixer group in proportion and stir, wherein high-speed mixing temperature of charge is controlled at 115 ℃, and low speed mixing temperature of charge is controlled at 45 ℃ of dischargings.
3, extrusion moulding:
Take and extrude electric power protecting pipe 110 * 5.0mm(1.0MPa) be example, add conical double screw extruder to extrude cold mixed mixed ingredients, the barrel zone temperature of conical double screw extruder is set to 170,165,160,160 ℃, and the temperature setting of mould is set to 170,185,185,200 ℃.
4, pipe performance contrast:
Claims (1)
1. a polyvinyl chloride pipeline, is characterized in that, mark is comprised of following raw material by weight:
Polyvinyl chloride (PVC) RESINS, trade names are 100 parts of SG-5;
Organotin stabilizer, trade names are 1 part of T-178A;
Processing aid, trade names are 1 part of LPA-40;
The agent of ACR anti-impact, trade names are 3 parts of D200;
2 parts of ammonium octamolybdates;
2 parts of ferrocene;
0.8 part, PE wax;
1,840 0.4 parts of stearic acid;
Titanium dioxide trade names are 5 parts of NR-950;
Calcium carbonate trade names are 5 parts of BT-3;
Concrete step is as described below:
After mixing according to each feed composition, add in the hot mixer of high speed and carry out blending dispersion, when temperature reaches 115 ℃, enter and in cold mixer, stir coolingly, when temperature drops to 45 ℃, enter hopper, stand-by; Mixed ingredients stand-by in described hopper is added to twin screw extruder plasticizing, mould molding, wherein, described twin screw extruder is conical double screw extruder, and its barrel zone temperature is set to 165 ℃, and mould molding temperature is 185 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110212679.7A CN102329467B (en) | 2011-07-28 | 2011-07-28 | Polyvinyl chloride pipeline and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110212679.7A CN102329467B (en) | 2011-07-28 | 2011-07-28 | Polyvinyl chloride pipeline and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102329467A CN102329467A (en) | 2012-01-25 |
| CN102329467B true CN102329467B (en) | 2014-03-12 |
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| CN201110212679.7A Active CN102329467B (en) | 2011-07-28 | 2011-07-28 | Polyvinyl chloride pipeline and preparation method thereof |
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| CN103289235A (en) * | 2013-06-08 | 2013-09-11 | 广东华声电器股份有限公司 | PVC (polyvinyl chloride) colorful coextruded material and application thereof |
| CN103436045B (en) * | 2013-09-05 | 2016-01-06 | 韩剑帅 | Fireproof flame-retardant expansion sealing strip |
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| CN104194183A (en) * | 2014-07-25 | 2014-12-10 | 桐乡市金汇纺织有限公司 | High temperature resistant PVC granular material and preparation method thereof |
| CN105670154A (en) * | 2014-11-17 | 2016-06-15 | 上海上塑控股（集团）有限公司 | PVC flame-retardant fire-protection threading pipe |
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| CN105673953B (en) * | 2014-11-17 | 2018-12-07 | 上海上塑控股（集团）有限公司 | A kind of foam polyvinyl chloride pipe |
| CN104448612A (en) * | 2014-11-25 | 2015-03-25 | 新疆西部节水科技股份有限公司 | High-impact-resistant modified polyvinyl chloride pipe for water supply and preparation method thereof |
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| CN104629211A (en) * | 2015-02-04 | 2015-05-20 | 江西岳峰高分子材料有限公司 | PVC-U threading tube and preparation method thereof |
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| CN105175947B (en) * | 2015-10-21 | 2017-10-10 | 日丰科技有限公司 | A kind of heat-resisting smoke-inhibiting PVC material and preparation method thereof |
| CN107778693A (en) * | 2016-08-29 | 2018-03-09 | 广西金滩管业科技有限公司 | Fire-resistant smoke-inhibiting PVC pipe and its production method |
| CN107057219A (en) * | 2017-03-21 | 2017-08-18 | 宜昌宜硕塑业有限公司 | A kind of stability PVC formulating of recipe for pipes |
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| CN107955294A (en) * | 2017-12-07 | 2018-04-24 | 扬州市兴隆塑料有限公司 | A kind of stretch-proof PVC communications tubing preparation process |
| CN109337230A (en) * | 2018-08-27 | 2019-02-15 | 海宁市怡球塑业有限公司 | A kind of flame retardant plastics profile |
| CN109486055B (en) * | 2018-10-18 | 2021-04-27 | 重庆伟星新型建材有限公司 | Environment-friendly PVC-U electrical casing formula |
| CN110183767A (en) * | 2019-04-26 | 2019-08-30 | 苏州市双虎科技有限公司 | A kind of high fire-retardance thermoplastic low-smoke halide-free cable materials |
| CN110864175A (en) * | 2019-12-04 | 2020-03-06 | 宋晓明 | Heat-preservation three-way pipeline |
| CN111378288A (en) * | 2020-04-13 | 2020-07-07 | 联塑科技发展(贵阳)有限公司 | Flame-retardant smoke suppressant, flame-retardant smoke suppressant type PVC modified material and preparation method thereof |
| CN111647238A (en) * | 2020-06-05 | 2020-09-11 | 临海伟星新型建材有限公司 | Environment-friendly polyvinyl chloride electrical casing and preparation method thereof |
| CN114479317A (en) * | 2022-03-03 | 2022-05-13 | 五行科技股份有限公司 | UPVC (unplasticized polyvinyl chloride) profile as well as preparation method and application thereof |
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| CN102329467A (en) | 2012-01-25 |
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