CN105837988A - Flame-retardant ultrafine fully-vulcanized powder rubber polyvinyl chloride composite water pipe and preparation method thereof - Google Patents
Flame-retardant ultrafine fully-vulcanized powder rubber polyvinyl chloride composite water pipe and preparation method thereof Download PDFInfo
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- CN105837988A CN105837988A CN201610325332.6A CN201610325332A CN105837988A CN 105837988 A CN105837988 A CN 105837988A CN 201610325332 A CN201610325332 A CN 201610325332A CN 105837988 A CN105837988 A CN 105837988A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a flame-retardant ultrafine fully-vulcanized powder rubber polyvinyl chloride composite water pipe. The flame-retardant ultrafine fully-vulcanized powder rubber polyvinyl chloride composite water pipe is prepared from, by weight, 29-30 parts of ultrafine fully-vulcanized powder rubber, 68-70 parts of PVCSG-3, 2-2.3 parts of zinc oxide nanowires, 3-3.2 parts of cerous nitrate, 70-80 parts of deionized water, 1.6-1.8 parts of butyl acrylate, 0.2-0.3 part of ammonium persulfate, 3-3.5 parts of nanometer hydroxy aluminium oxalate, 0.8-0.9 part of diethyl phosphinic acid aluminum, 0.6-0.7 part of sodium molybdate, 2-2.5 parts of polytetrafluoroethylene micro powder, 2.6-2.8 parts of dodecafluoroheptyl-propyl-trimethoxysilane, 66-76 parts of ethyl alcohol and 15-16 parts of ammonium hydroxide. Nanometer hydroxy aluminium oxalate, diethyl phosphinic acid aluminum, sodium molybdate and polytetrafluoroethylene micro powder are ground to be uniform and dispersed evenly in the water pipe, and flame retardance, wear resistance and heat resistance of the water pipe are improved.
Description
Technical field
The present invention relates to PVC water pipe technical field, particularly relate to a kind of fire-retardant ultra-fine fully vulcanized powder rubber polrvinyl chloride composite water pipe and preparation method thereof.
Background technology
Pressure feed water plastic pipe should have high intensity and high tenacity simultaneously.RPVC (PVC-U) water-feeding pipes toughness is not enough, easy booster under the effect of external condition, and the mechanical property improving PVC-U material is to improve the effective way in product service life." the ultra-fine fully vulcanized powder rubber study on the modification to RPVC " literary composition is for this practical problem, from toughness reinforcing, the basic ideas of Reinforced PVC-U material property, use high model resin extruded PVC-U water-feeding pipes first, use full sulfuration ultra fine powder rubber blending and modifying PVC-U material first, inquire into the effect of micro-cross-linking agent chemical modification PVC-U material.By testing the mechanical property of PVC-U system, observe the microstructure of blending modification system, obtain following Main Conclusions: 1. pass through contrast experiment, show that SG-3 resin or SG-3 with SG-5 resin are individually more preferable by SG-5 resin material performance with certain proportion mix ratio, it is suitable for producing feedwater piping, has been used for actual production.2. in four kinds of stabilizers of FWR-Z, SMS318, Ca-Zn and organotin, FWR-Z stabilizer performance is worst.Water-feeding pipes should use organotin, Ca-Zn, SMS-318 stabilizer.Pipe fitting stabilizer cannot be used for producing tubing, jelly grade too much can be made because of in-lubricant excessive, affect the mechanical properties.3., under experimental condition herein, the effect of the impact strength that three kinds of full sulfuration micropowder art rubber improves PVC system is different, and PNBR is better than acrylate rubber, and acrylate rubber is better than carboxy terminated nitrile rubber.When powdered rubber content is below 5 parts, the impact strength of co-mixing system rises after falling before.When PNBR is 3 parts, the impact strength of co-mixing system rises very fast, exceedes the impact strength of pure PVC, but is necessary to improve further the amplitude of increase, keeps hot strength not reduce.4. under experimental condition herein, by observing the microstructure of PNBR/PVC co-mixing system section, finding that in different microcell, PNBR dispersion situation is different, rubber has the bundles of phenomenon of gathering, also has finely dispersed phenomenon.When using banburying mode to be blended, it is possible to observing the microcell that PNBR dispersion size is less, its single particle is closely sized to 100nm, presents fundamental particle dispersity.Ultra-fine fully vulcanized powder rubber to the study on the modification 5. of RPVC under this paper experimental condition, genuine milk rubber shares with powder butyronitrile rubber, the interface of powder butyronitrile rubber and PVC can be improved, co-mixing system impact strength is made to be improved, in system microstructure, rubber particles dispersion size is less, shows coordination plasticizing effect.After more than 6.1 parts powdered rubbers mix with PVC, the master stream property of compound is deteriorated, and affects the dispersion of powdered rubber granule, and then affects performance, should improve powdered rubber surface appearance.The most under experimental conditions, the micro-cross-linking agent TAIC less than 0.1 part can to a certain degree improve the mechanical property of PVC.In order to take into account processing characteristics and the requirement of product appearance quality in actual production, after reducing the consumption of cross-linking agent, mechanical property is without significantly improving.
The water pipe obtained by this research has good intensity and toughness, but the easy corrosion and ageing of rubber, thermostability is poor, affect the service life of water pipe, need to improve, it addition, the progress also needing to the change according to environment and production improves the toughness of water pipe, antibiotic property, corrosion resistance, quiet performance, elasticity, environmental protection, wear-resisting, antistatic behaviour, tensile strength, antifouling, radioprotective, the performance such as fire-retardant.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of fire-retardant ultra-fine fully vulcanized powder rubber polrvinyl chloride composite water pipe and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of fire-retardant ultra-fine fully vulcanized powder rubber polrvinyl chloride composite water pipe, is prepared by the raw materials in: ultra-fine fully vulcanized powder rubber 29-30, PVCSG-3 68-70, zinc oxide nanowire 2-2.3, cerous nitrate 3-3.2, deionized water 70-80, butyl acrylate 1.6-1.8, Ammonium persulfate. 0.2-0.3, nano-hydroxy oxalic acid aluminum 3-3.5, aluminum diethylphosphinate 0.8-0.9, sodium molybdate 0.6-0.7, ptfe micropowder 2-2.5, ten difluoro heptyl propyl trimethoxy silicane 2.6-2.8, ethanol 66-76, ammonia 15-16.
The preparation method of described fire-retardant ultra-fine fully vulcanized powder rubber polrvinyl chloride composite water pipe, comprises the following steps:
(1) by nano-hydroxy oxalic acid aluminum, aluminum diethylphosphinate, sodium molybdate, ptfe micropowder mixing, grind uniformly, obtain mixed material；
(2) by cerous nitrate, deionized water mixing, stirring obtains solution, adds ultra-fine fully vulcanized powder rubber, be slowly added dropwise by ammonia the most while stirring in people's said mixture, and at 30-35 DEG C, stirring reaction 3-3.5h, filtration drying, obtain powder；
(3) by butyl acrylate, ten difluoro heptyl propyl trimethoxy silicane mixing, add ethanol to stir, add described powder, zinc oxide nanowire, stir, add Ammonium persulfate., be heated to 60-70 DEG C, stir 30-40 minute, filtration drying, obtains modified superfine fully vulcanized powder rubber；
(4) mixed material, modified superfine fully vulcanized powder rubber being mixed with other residual componentss, carry out banburying, spinner velocity is 40rpm, and temperature is 180-185 DEG C, mixes 10-12 minute, then carries out pelletize, injection, to obtain final product.
The invention have the advantage that and by the present invention in that and with cerous nitrate, ultra-fine fully vulcanized powder rubber is modified, nano-cerium oxide in powdered rubber surface deposition, improve thermostability and the resistance to ag(e)ing of powdered rubber, but it is so that the polarity of powdered rubber strengthens, reduce reinforcing property, re-use zinc oxide nanowire, butyl acrylate, ten difluoro heptyl propyl trimethoxy silicanes are modified, active group and nano wire at powdered rubber surface grafting, and improve lubricity, improve dispersibility and the resistance to water of powdered rubber, improve powdered rubber and the contact area of PVC and adhesion strength, improve the notch impact strength of water pipe, toughness, improve resistance to ag(e)ing simultaneously；By using nano-hydroxy oxalic acid aluminum, aluminum diethylphosphinate, sodium molybdate, ptfe micropowder to be ground uniformly, improve nano-hydroxy oxalic acid aluminum, aluminum diethylphosphinate, the dispersibility of sodium molybdate and lubricity, thus dispersed in water pipe, improve the anti-flammability of water pipe, wearability and thermostability.
Detailed description of the invention
A kind of fire-retardant ultra-fine fully vulcanized powder rubber polrvinyl chloride composite water pipe, is made up of the raw material of following weight portion (kilogram): ultra-fine fully vulcanized powder rubber 29, PVCSG-3 68, zinc oxide nanowire 2, cerous nitrate 3, deionized water 70, butyl acrylate 1.6, Ammonium persulfate. 0.2, nano-hydroxy oxalic acid aluminum 3, aluminum diethylphosphinate 0.8, sodium molybdate 0.6, ptfe micropowder 2, ten difluoro heptyl propyl trimethoxy silicane 2.6, ethanol 66, ammonia 15.
The preparation method of described fire-retardant ultra-fine fully vulcanized powder rubber polrvinyl chloride composite water pipe, comprises the following steps:
(1) by nano-hydroxy oxalic acid aluminum, aluminum diethylphosphinate, sodium molybdate, ptfe micropowder mixing, grind uniformly, obtain mixed material；
(2) by cerous nitrate, deionized water mixing, stirring obtains solution, adds ultra-fine fully vulcanized powder rubber, be slowly added dropwise by ammonia the most while stirring in people's said mixture, and at 30 DEG C, stirring reaction 3h, filtration drying, obtain powder；
(3) by butyl acrylate, ten difluoro heptyl propyl trimethoxy silicane mixing, add ethanol and stir, add described powder, zinc oxide nanowire, stir, add Ammonium persulfate., be heated to 60 DEG C, stir 30 minutes, filtration drying, obtain modified superfine fully vulcanized powder rubber；
(4) mixed material, modified superfine fully vulcanized powder rubber being mixed with other residual componentss, carry out banburying, spinner velocity is 40rpm, and temperature is 180 DEG C, mixes 10 minutes, then carries out pelletize, injection, to obtain final product.
The notch impact strength of the present embodiment supplying pipe is 14.5KJ/m2, hot strength is 82.3MPa, and elongation at break is 83.6%.
Claims (2)
1. a fire-retardant ultra-fine fully vulcanized powder rubber polrvinyl chloride composite water pipe, it is characterised in that be prepared by the raw materials in: ultra-fine fully vulcanized powder rubber 29-30, PVCSG-3 68-70, zinc oxide nanowire 2-2.3, cerous nitrate 3-3.2, deionized water 70-80, butyl acrylate 1.6-1.8, Ammonium persulfate. 0.2-0.3, nano-hydroxy oxalic acid aluminum 3-3.5, aluminum diethylphosphinate 0.8-0.9, sodium molybdate 0.6-0.7, ptfe micropowder 2-2.5, ten difluoro heptyl propyl trimethoxy silicane 2.6-2.8, ethanol 66-76, ammonia 15-16.
The preparation method of fire-retardant ultra-fine fully vulcanized powder rubber polrvinyl chloride composite water pipe the most according to claim 1, it is characterised in that comprise the following steps:
(1) by nano-hydroxy oxalic acid aluminum, aluminum diethylphosphinate, sodium molybdate, ptfe micropowder mixing, grind uniformly, obtain mixed material；
(2) by cerous nitrate, deionized water mixing, stirring obtains solution, adds ultra-fine fully vulcanized powder rubber, be slowly added dropwise by ammonia the most while stirring in people's said mixture, and at 30-35 DEG C, stirring reaction 3-3.5h, filtration drying, obtain powder；
(3) by butyl acrylate, ten difluoro heptyl propyl trimethoxy silicane mixing, add ethanol to stir, add described powder, zinc oxide nanowire, stir, add Ammonium persulfate., be heated to 60-70 DEG C, stir 30-40 minute, filtration drying, obtains modified superfine fully vulcanized powder rubber；
(4) mixed material, modified superfine fully vulcanized powder rubber being mixed with other residual componentss, carry out banburying, spinner velocity is 40rpm, and temperature is 180-185 DEG C, mixes 10-12 minute, then carries out pelletize, injection, to obtain final product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325332.6A CN105837988A (en) | 2016-05-17 | 2016-05-17 | Flame-retardant ultrafine fully-vulcanized powder rubber polyvinyl chloride composite water pipe and preparation method thereof |
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| CN201610325332.6A CN105837988A (en) | 2016-05-17 | 2016-05-17 | Flame-retardant ultrafine fully-vulcanized powder rubber polyvinyl chloride composite water pipe and preparation method thereof |
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| CN105837988A true CN105837988A (en) | 2016-08-10 |
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| CN201610325332.6A Pending CN105837988A (en) | 2016-05-17 | 2016-05-17 | Flame-retardant ultrafine fully-vulcanized powder rubber polyvinyl chloride composite water pipe and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483716A (en) * | 2012-06-08 | 2014-01-01 | 中国石油化工股份有限公司 | Hard impact-resistant polyvinyl chloride composition and preparation method thereof |
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- 2016-05-17 CN CN201610325332.6A patent/CN105837988A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483716A (en) * | 2012-06-08 | 2014-01-01 | 中国石油化工股份有限公司 | Hard impact-resistant polyvinyl chloride composition and preparation method thereof |
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Application publication date: 20160810 |
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