CN103571102A - Preparation method of inflaming retardant type PVC (polyvinyl chloride) pipe - Google Patents
Preparation method of inflaming retardant type PVC (polyvinyl chloride) pipe Download PDFInfo
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- CN103571102A CN103571102A CN201310516589.6A CN201310516589A CN103571102A CN 103571102 A CN103571102 A CN 103571102A CN 201310516589 A CN201310516589 A CN 201310516589A CN 103571102 A CN103571102 A CN 103571102A
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Abstract
The invention discloses a preparation method of an inflaming retardant type PVC (polyvinyl chloride) pipe. The preparation method comprises the following steps: preparing for a raw material; extruding a pipe; carrying out acid pickling for rust removal and phosphating; preheating a base material; internally and externally soaking PVC; heating and leveling; and detecting a finished product. The inflaming retardant type PVC pipe produced by adopting the preparation method completely accords with the state quality standard of a conduit in a building, is good in inflaming retarding effect, excellent in rigidity, heat resistance and aging resistance, low in production cost and simple in a machining process; combustion performance tests show that an oxygen index can be up to above 40.
Description
Technical field
The invention belongs to polyvinyl chloride composite materials technical field, be specifically related to a kind of preparation method of flame retardant type pvc pipe.
Background technology
PVC penetration pipe is that the rigid rubber pipe that electric wire is used is worn in a kind of electric installation, and it be take polyvinyl chloride resin and makes as body material, has the shortcomings such as thermostability, high and low temperature resistance, poor fluidity, so will add various auxiliary agents to improve its performance due to polyvinyl chloride resin itself.Conventional auxiliary agent can be divided into by function: thermo-stabilizer, lubricant, modifier, anti-impact modifier, weighting agent, antiager, tinting material etc.
Wherein, anti-impact modifier is a kind of very important auxiliary agent of PVC modification, because the second-order transition temperature of polyvinyl chloride resin is higher, at room temperature show hard fragility, low-temperature flexibility is poor, shock resistance is poor, add after impact modifier, impact modifier is only compatible with PVC part, forms Microphase Separation, the macroscopic view state of separation again, PVC and impact modifier have formed reticulated structure and island structure, thereby have improved the ability of impact-absorbing energy.
PVC develops three large toughened system: CPE (chlorinatedpolyethylene) systems, ACR (esters of acrylic acid) system, EVA (its polymers of ethene-vinyl acetate) system gradually with anti-impact modifier.In recent years due to the development of nanoscale materials engineering, by nano level impact modifier for penetration pipe, the impact resistance that improves penetration pipe of take is trend of the times.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of preparation method of flame retardant type pvc pipe is provided, the method is used nano grade inorganic fire retardant, and shock resistance and the flame retardant properties of the flame retardant type pvc pipe of preparation are good, low production cost.
Above-mentioned purpose of the present invention is achieved by the following scheme:
A preparation method for flame retardant type pvc pipe, comprises the steps:
(1) raw material is prepared: polyvinyl chloride (PVC) RESINS 80～100 weight parts, the particle diameter that particle diameter is 0.1～0.2mm is 300～500 object calcium carbonate 20～30 weight parts, impact modifying agent ACR5～10 weight part, complex lead salt stabilizer 5～10 weight parts, lubricant oxidation polyethylene wax 0.5～2 weight part and nano grade inorganic fire retardant 5～10 weight parts;
(2) tube extrusion: calcium carbonate is added to polyvinyl chloride (PVC) RESINS high-speed mixing 2～5min; Add again other components mixed 20～30min of high speed heat at 120～135 ℃; Then stir blowing while being cooled to 40～60 ℃, be heated to extruding pipe material at 180～190 ℃;
(3) acid pickling and rust removing and bonderizing: tubing is immersed in acid solution to 12～24 hours, then the tubing after pickling is carried out to bonderizing, make tube surfaces form phosphatize phosphate coat;
(4) base material preheating: tubing travels at the uniform speed in tubing process furnace thermally equivalent;
(5) inside and outside, soak and mould: tubing 70% is immersed containing carrying out rotational moulding in the fluidized-bed of fluidized powder and inhaling plastic-coated;
(6) heating levelling: the tubing of coating is put into heating levelling stove;
(7) finished product detection: detect qualified after.
Nano grade inorganic fire retardant in above-mentioned steps (1) is comprised of nanostructure modified aluminium hydroxide, micron order magnesium hydroxide and the auxiliary flame retardant of following weight parts: particle diameter is 40～80 parts of 100～150 nanostructure modified aluminium hydroxides; Particle diameter is 20～40 parts of the magnesium hydroxides of 1～10 micron; 5～20 parts of auxiliary flame retardants; Described auxiliary flame retardant is comprised of zinc borate, zinc oxide, ferric oxide, phosphoric acid salt and carbonate.
Complex lead salt stabilizer in above-mentioned steps (1) is comprised of tribasic lead sulfate and dibasic Lead Phosphite.
Compared with prior art, the present invention has following beneficial effect: preparation method's technique of the present invention is simple, low production cost, and the mechanical index such as the bending resistance of product, shock resistance, anti-pressure ability and flame retardant properties meet the requirements.
Embodiment
Provide component and the weight part table look-up of a kind of flame retardant type pvc pipe of the embodiment of the present invention below:
Table 1 component with containing scale
Preparation process is: the component by table 1 takes raw material, first calcium carbonate is added after polyvinyl chloride (PVC) RESINS high-speed mixing 2～5min, then adds other components mixed 20～30min of high speed heat at 120～135 ℃; Then stir blowing while being cooled to 40～60 ℃, be heated to extruding pipe material at 180～190 ℃; Tubing is immersed in acid solution to 12～24 hours, then the tubing after pickling is carried out to bonderizing, make tube surfaces form phosphatize phosphate coat; Tubing travels at the uniform speed in tubing process furnace thermally equivalent; Tubing 70% is immersed containing carrying out rotational moulding in the fluidized-bed of fluidized powder and inhaling plastic-coated; Again the tubing of coating is put into heating levelling stove; Detect qualified after.
The component of each embodiment in table of take is below example, and the mechanical property of flame retardant type pvc pipe of the present invention and the test result of electrical property are in Table 2:
The test result of each embodiment flame retardant type pvc pipe of table 2
The flame retardant type pvc pipe that adopts said components and method to produce, meet building penetration pipe state quality standard completely, good flame retardation effect, combustibility test test shows that oxygen index can reach more than 40, the rigidity of this flame retardant type pvc pipe, thermotolerance and ageing resistance are good, production cost is low, and complete processing is simple.
Claims (3)
1. a preparation method for flame retardant type pvc pipe, is characterized in that comprising the steps:
(1) raw material is prepared: polyvinyl chloride (PVC) RESINS 80～100 weight parts, the particle diameter that particle diameter is 0.1～0.2mm is 300～500 object calcium carbonate 20～30 weight parts, impact modifying agent ACR5～10 weight part, complex lead salt stabilizer 5～10 weight parts, lubricant oxidation polyethylene wax 0.5～2 weight part and nano grade inorganic fire retardant 5～10 weight parts;
(2) tube extrusion: calcium carbonate is added to polyvinyl chloride (PVC) RESINS high-speed mixing 2～5min, then add other component mixed 20～30min of high speed heat at 120～130 ℃; Then stir blowing while being cooled to 40～60 ℃, be heated to extruding pipe material at 180～190 ℃;
(3) acid pickling and rust removing and bonderizing: tubing is immersed in acid solution to 12～24 hours, then the tubing after pickling is carried out to bonderizing, make tube surfaces form phosphatize phosphate coat;
(4) base material preheating: tubing travels at the uniform speed in tubing process furnace thermally equivalent;
(5) inside and outside, soak and mould: tubing 70% is immersed containing carrying out rotational moulding in the fluidized-bed of fluidized powder and inhaling plastic-coated;
(6) heating levelling: the tubing of coating is put into heating levelling stove;
(7) finished product detection: detect qualified after.
2. the preparation method of a kind of flame retardant type pvc pipe according to claim 1, is characterized in that nano grade inorganic fire retardant in described step (1) is comprised of nanostructure modified aluminium hydroxide, micron order magnesium hydroxide and the auxiliary flame retardant of following weight parts: particle diameter is 40～80 parts of 100～150 nanostructure modified aluminium hydroxides; Particle diameter is 20～40 parts of the magnesium hydroxides of 1～10 micron; 5～20 parts of auxiliary flame retardants; Described auxiliary flame retardant is comprised of zinc borate, zinc oxide, ferric oxide, phosphoric acid salt and carbonate.
3. the preparation method of a kind of flame retardant type pvc pipe according to claim 1, is characterized in that the complex lead salt stabilizer in described step (1) is comprised of tribasic lead sulfate and dibasic Lead Phosphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310516589.6A CN103571102A (en) | 2013-10-25 | 2013-10-25 | Preparation method of inflaming retardant type PVC (polyvinyl chloride) pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310516589.6A CN103571102A (en) | 2013-10-25 | 2013-10-25 | Preparation method of inflaming retardant type PVC (polyvinyl chloride) pipe |
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| CN103571102A true CN103571102A (en) | 2014-02-12 |
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| CN201310516589.6A Pending CN103571102A (en) | 2013-10-25 | 2013-10-25 | Preparation method of inflaming retardant type PVC (polyvinyl chloride) pipe |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647050A (en) * | 2014-11-11 | 2016-06-08 | 富阳科威钢业有限公司 | Single-wall corrugated pipe |
| CN105885273A (en) * | 2014-12-04 | 2016-08-24 | 安徽安塑管业有限公司 | PVC (polyvinyl chloride) tube |
| CN109021429A (en) * | 2018-06-21 | 2018-12-18 | 安徽特力电缆有限公司 | A kind of flame retardant type threading set materials in the tube for heating cable |
| CN110527213A (en) * | 2019-08-12 | 2019-12-03 | 天津市凯鑫金属制品有限公司 | A kind of kettle-bell leaching modeling liquid and its impregnation |
| CN115895143A (en) * | 2022-11-30 | 2023-04-04 | 杭州富阳金盾塑业有限公司 | Impact-resistant high-temperature-resistant PVC pipe and production process thereof |
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| CN102451816A (en) * | 2010-10-29 | 2012-05-16 | 天津市清华恒森管道制造有限公司 | Power threading tube manufacturing method |
| CN102875932A (en) * | 2012-10-18 | 2013-01-16 | 合肥安诺新型建材有限公司 | PVC (polyvinyl chloride) power pipeline material and preparation method thereof |
| CN103254531A (en) * | 2013-05-27 | 2013-08-21 | 常州大学 | Flame-retardant PVC (polyvinyl chloride) composite material and preparation method thereof |
| CN103360698A (en) * | 2012-03-31 | 2013-10-23 | 中国石油化工股份有限公司 | Inflaming-retarding and antistatic high-strength polyvinyl chloride tube stock composition |
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2013
- 2013-10-25 CN CN201310516589.6A patent/CN103571102A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102451816A (en) * | 2010-10-29 | 2012-05-16 | 天津市清华恒森管道制造有限公司 | Power threading tube manufacturing method |
| CN103360698A (en) * | 2012-03-31 | 2013-10-23 | 中国石油化工股份有限公司 | Inflaming-retarding and antistatic high-strength polyvinyl chloride tube stock composition |
| CN102875932A (en) * | 2012-10-18 | 2013-01-16 | 合肥安诺新型建材有限公司 | PVC (polyvinyl chloride) power pipeline material and preparation method thereof |
| CN103254531A (en) * | 2013-05-27 | 2013-08-21 | 常州大学 | Flame-retardant PVC (polyvinyl chloride) composite material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647050A (en) * | 2014-11-11 | 2016-06-08 | 富阳科威钢业有限公司 | Single-wall corrugated pipe |
| CN105885273A (en) * | 2014-12-04 | 2016-08-24 | 安徽安塑管业有限公司 | PVC (polyvinyl chloride) tube |
| CN109021429A (en) * | 2018-06-21 | 2018-12-18 | 安徽特力电缆有限公司 | A kind of flame retardant type threading set materials in the tube for heating cable |
| CN110527213A (en) * | 2019-08-12 | 2019-12-03 | 天津市凯鑫金属制品有限公司 | A kind of kettle-bell leaching modeling liquid and its impregnation |
| CN115895143A (en) * | 2022-11-30 | 2023-04-04 | 杭州富阳金盾塑业有限公司 | Impact-resistant high-temperature-resistant PVC pipe and production process thereof |
| CN115895143B (en) * | 2022-11-30 | 2024-04-16 | 杭州富阳金盾塑业有限公司 | Impact-resistant high-temperature-resistant PVC pipe and production process thereof |
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Application publication date: 20140212 |