CN110157116A - A kind of unleaded drainage pipe of novel hard polyvinyl chloride and preparation method thereof - Google Patents
A kind of unleaded drainage pipe of novel hard polyvinyl chloride and preparation method thereof Download PDFInfo
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- CN110157116A CN110157116A CN201910454541.4A CN201910454541A CN110157116A CN 110157116 A CN110157116 A CN 110157116A CN 201910454541 A CN201910454541 A CN 201910454541A CN 110157116 A CN110157116 A CN 110157116A
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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Abstract
The present invention relates to a kind of novel unleaded drainage pipes of hard polyvinyl chloride and preparation method thereof, belong to field of compound material.The unleaded drainage pipe of novel hard polyvinyl chloride of the invention, including components by weight percent: 60-80 parts of polyvinyl chloride resin, 10-15 parts of polyfunctional group unsaturated monomer, 10-30 parts of plasticized modifier, 3-6 parts of rare earth composite stabilizer, 1-3 parts of lubricant, 2-5 parts of coupling agent, 0-15 parts of filler.A kind of novel unleaded drainage pipe of hard polyvinyl chloride provided by the invention, nonhazardous and is free of lead, excellent in cushion effect, good toughness, anti-aging.
Description
Technical field
The invention belongs to field of compound material more particularly to a kind of unleaded drainage pipe of novel hard polyvinyl chloride and its preparations
Method.
Background technique
Polyvinyl chloride, English abbreviation PVC are the great general-purpose plastics of yield in the world, very widely used, are being built
Material, industrial product, daily necessities etc. are each etc. to be widely used.For other materials, PVC processes raw material rich
Richness, processing technology is simple, and material itself is lighter, waterproof and dampproof, anti-flaming thermal-insulation, also have certain resistance to chemical corrosion with it is excellent
Different electrical insulating property.
But the problem of the generally existing impact strength difference of PVC material and toughness deficiency is caused due to the deficiency in terms of these
The brittleness of the pipeline of material preparation is larger, and brittle break easily occurs during Product transport, installation and use；Its
Secondary, PVC material is easy to aging under sunlight, ultraviolet irradiation, causes to be used for a long time outdoors easily with this material institute tubing giving sufficient strength
There is pipe leakage, infiltration, rupture, therefore greatly limits the application of material product outdoors；Again, since PVC is produced
Shi Bixu uses heat stabilizer, and lead salt stabilizer is since its cheap price is widely used, but heavy metal lead has human body
Greatly harm.The patent of Publication No. 107353543 discloses " a kind of PVC pipe ", by the raw material of following parts by weight
It is made: 35-65 parts of ethyl methacrylate, 6-10 parts of polyester fiber, 7-11 parts of propylene oxide, 6-11 parts of polystyrene resin,
9-18 parts of butyl titanate, it is saturated 10-15 parts of 18 carbamide, 10-15 parts of titanium dioxide, 5-10 parts of organo-tin het stabilizer, is increased
Tough dose 5-9 parts, 7-12 parts of tribasic lead sulfate, 2~5 parts of lubricant.Stabilizer used in it is organo-tin het stabilizer, but
Organic tin stabilizer is on the high side, and the type thermal stabilizing agent is all liquid, transport, in terms of it is not very convenient, it is organic
Metallic tin in tin stabilizer also has certain toxicity.
Therefore it produces with good comprehensive performance and cheap lead-free PVC pipeline is particularly important.
Summary of the invention
In order to solve the problems, such as presently, there are, the present invention provides a kind of novel unleaded drainage pipe of hard polyvinyl chloride,
It is not only excellent in cushion effect, good toughness, anti-aging, nonhazardous and be free of lead.
The technical scheme of the present invention is realized as follows:
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including components by weight percent: 60-80 parts of polyvinyl chloride resin, polyfunctional group is unsaturated
It 10-15 parts of monomer, 10-30 parts of plasticized modifier, 3-6 parts of rare earth composite stabilizer, 1-3 parts of lubricant, 2-5 parts of coupling agent, fills out
Fill 0-15 parts of agent.
Addition rare earth composite stabilizer can be reacted with the HCl of abjection, inhibit autocatalysis；It replaces unstable in PVC molecule
Allyl Cl atom or tertiary carbon position chlorine atom, inhibit de- HCl；Addition reaction occurs with the diene in PVC molecule, destroys conjugation
Structure prevents discoloration；Free radical is captured, chain reaction is prevented.Rare earth composite stabilizer replaces lead salt stabilizer as thermostabilization
Agent can avoid the heavy metal pollution problem of lead while improving thermal stability, while rare earth composite stabilizer is with fairly good
Thermal stability, photostability and the transparency and tinting strength, tinting power, and have purification impurity effect, can promote macromolecule, polymerization improve and
Molecular weight increases, and compact product structure, various performances are improved.
Preferably, multi-functional unsaturated monomer is trimethylol-propane trimethacrylate, trimethylolpropane tris third
Olefin(e) acid ester, triallyl isonitrile urea acid esters, triallyl nitrile urea acid esters, dimethacrylate tetraethylene glycol ester, diacrylate four are sweet
One of alcohol ester, tri (propylene glycol) diacrylate, dipropylene glycol diacrylate are a variety of.
Preferably, rare earth composite stabilizer includes rare-earth stearate element, calcium stearate, zinc stearate.With it is single dilute
Soil stabilizer or calcium zinc stabilizer are compared, and the thermal stability of rare earth composite stabilizer has significant superiority.
Preferably, plasticized modifier is selected from one of HDPE, CPE, MBS, ACR, PP, SBR, NBR or a variety of.
Preferably, filler is nanoscale light calcium and/or metal oxide.Nanometer light calcium has chemically as filler
The advantages such as matter is stable, low in cost, partial size and shape of particle can control, and add the light calcium carbonate of nanometer and can also play increasing
Tough, enhancing effect, enhances the heat resistance of tubing.Metal oxide can resist ultraviolet light to a certain extent, so that tubing
With good weatherability, and addition metal oxide can improve the flame retardant property of tubing to a certain extent.
Preferably, metal oxide is one or more of titanium dioxide, aluminium oxide, zirconium oxide, magnesia in filler.
Preferably, coupling agent is selected from silane coupling agent or titanate coupling agent.
Preferably, lubricant is selected from one of zinc oxide/polyvinyl chloride, polyethylene wax, higher fatty acid salt, silicone oil or more
Kind.
It preferably, further include hydrotalcite 4-8 parts by weight.The addition of hydrotalcite can significantly improve the dimension card softening of tubing
Temperature is higher, and the dimensional stability of tubing is better, and thermal deformation is smaller namely the intensity of tubing is higher.
Preferably, the hydrotalcite is resin modified hydrotalcite, and effect is more preferable.
A kind of preparation method of the unleaded drainage pipe of novel hard polyvinyl chloride comprising following steps:
(1) according to polyvinyl chloride resin 60-80 parts by weight, polyfunctional group unsaturated monomer 10-15 parts by weight, plasticized modifier 10-30
Parts by weight, rare earth composite stabilizer 3-6 parts by weight, lubricant 1-3 parts by weight, coupling agent 2-5 parts by weight, filler 0-15 weight
Part, get out raw material；
(2) polyvinyl chloride resin is heated to 95 ~ 100 DEG C；Lubricant is added, stirs evenly, extruding pelletization obtains plastic master batch；
(3) filler and plasticized modifier for using coupling agent surface treatment is added in plastic master batch, and mixing temperature reaches 95 ~ 100
DEG C, polyfunctional group unsaturated monomer is added, mixture temperature is stirred evenly up to 120 ~ 130 DEG C, obtains mixture；
(4) mixture carries out spoke by Co-60- gamma-rays or high energy electron ray in 4 ~ 6h after 40 ~ 45 DEG C of extrusion moldings or injection molding
According to crosslinking, tubing is obtained.
By implementing above-mentioned technical proposal, a kind of novel unleaded drainage pipe of hard polyvinyl chloride provided by the invention, nothing
Lead is poisoned and is free of, it is excellent in cushion effect, good toughness, anti-aging.
Specific embodiment
The technical solution to the application is subjected to clear, complete description below, it is clear that described embodiment is only
Some embodiments of the present application, instead of all the embodiments.Based on embodiments herein, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall in the protection scope of this application.
Embodiment 1
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: polyvinyl chloride resin 60kg, trimethylolpropane
Trimethyl acrylic ester 10 kg, HDPE 10 kg, 3 kg of rare earth composite stabilizer, 1 kg of higher fatty acid salt, silane coupling agent
2 kg。
Embodiment 2
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 70 kg of polyvinyl chloride resin, dipropylene glycol dipropyl
Olefin(e) acid ester 12 kg, CPE 20 kg, 4 kg of rare earth composite stabilizer, 2 parts of zinc oxide/polyvinyl chloride, 3 kg of titanate coupling agent receives
5 kg of meter level light calcium.
Embodiment 3
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 80 parts of polyvinyl chloride resin, tripropylene glycol
15 parts of diacrylate, 30 parts of SBR, 6 parts of rare earth composite stabilizer, 3 parts of silicone oil, 5 parts of titanate coupling agent, nanoscale light calcium 5
Kg, 10 parts of titanium dioxide.
Rare earth composite stabilizer includes rare-earth stearate element 95%, calcium stearate 3%, zinc stearate 2%.
Preparation method including the following steps:
(1) raw material is got out according to above-mentioned parts by weight；
(2) polyvinyl chloride resin is heated to 100 DEG C；Lubricant is added, stirs evenly, extruding pelletization obtains plastic master batch；
(3) filler and plasticized modifier for using coupling agent surface treatment is added in plastic master batch, and mixing temperature reaches 95 DEG C, adds
Enter polyfunctional group unsaturated monomer, mixture temperature is stirred evenly up to 130 DEG C, obtains mixture；
(4) mixture carries out cross-linking radiation by Co-60- gamma-rays in 6h, obtains tubing after 40 DEG C of extrusion moldings or injection molding.
Embodiment 4
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 65 parts of polyvinyl chloride resin, dimethacrylate
15 parts of tetraethylene glycol ester, SBR15 parts, 4 parts of rare earth composite stabilizer, 3 parts of polyethylene wax, 3 parts of titanate coupling agent, nanoscale light calcium
10 kg, 2 parts of aluminium oxide, 4 parts of hydrotalcite.
Preparation method including the following steps:
(1) raw material is got out according to above-mentioned parts by weight；
(2) polyvinyl chloride resin is heated to 95 DEG C；Lubricant is added, stirs evenly, extruding pelletization obtains plastic master batch；
(3) filler and plasticized modifier for using coupling agent surface treatment is added in plastic master batch, and mixing temperature reaches 95 ~ 100
DEG C, polyfunctional group unsaturated monomer is added, mixture temperature is stirred evenly up to 130 DEG C, obtains mixture；
(4) mixture carries out cross-linking radiation by Co-60- gamma-rays in 6h, obtains tubing after 40 DEG C of extrusion moldings or injection molding.
Embodiment 5
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 65 parts of polyvinyl chloride resin, triallyl nitrile urea
15 parts of acid esters, SBR15 parts, 4 parts of rare earth composite stabilizer, 3 parts of polyethylene wax, 3 parts of titanate coupling agent, 6 parts of nanoscale light calcium,
6 parts of zirconium oxide, 8 parts of hydrotalcite.Hydrotalcite is modified using preceding using epoxy resin, and concrete operations are by hydrotalcite and double
Phenol A type epoxy resin is mixed according to the mass ratio of 10:1, at 105 DEG C, handles 30min in the case of stirring.
Preparation method including the following steps:
(1) raw material is got out according to above-mentioned parts by weight；
(2) polyvinyl chloride resin is heated to 98 DEG C；Lubricant is added, stirs evenly, extruding pelletization obtains plastic master batch；
(3) filler and plasticized modifier for using coupling agent surface treatment is added in plastic master batch, and mixing temperature reaches 95 DEG C, adds
Enter polyfunctional group unsaturated monomer, mixture temperature is stirred evenly up to 125 DEG C, obtains mixture；
(4) mixture carries out cross-linking radiation by high energy electron ray in 5h, obtains tubing after 40 DEG C of extrusion moldings or injection molding.
Embodiment 6
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 65 parts of polyvinyl chloride resin, triallyl isonitrile
15 parts of urea acid esters, SBR15 parts, 4 parts of rare earth composite stabilizer, 3 parts of zinc oxide/polyvinyl chloride, 3 parts of titanate coupling agent, nanoscale is light
10 parts of calcium, 3 parts of titanium dioxide, 5 parts of hydrotalcite.Hydrotalcite is modified using preceding using epoxy resin, and concrete operations are by water
Talcum is mixed with bisphenol-A type epoxy resin according to the mass ratio of 10:1, at 105 DEG C, handles 30min in the case of stirring.
Preparation method including the following steps:
(1) raw material is got out according to above-mentioned parts by weight；
(2) polyvinyl chloride resin is heated to 100 DEG C；Lubricant, hydrotalcite is added, stirs evenly, extruding pelletization obtains plastic master batch；
(3) filler and plasticized modifier for using coupling agent surface treatment is added in plastic master batch, and mixing temperature reaches 100 DEG C,
Polyfunctional group unsaturated monomer is added, mixture temperature is stirred evenly up to 120 DEG C, obtains mixture；
(4) mixture carries out cross-linking radiation by high energy electron ray in 6h, obtains tubing after 42 DEG C of extrusion moldings or injection molding.
Comparative example 1
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 10 kg of polyvinyl chloride resin 60kg, HDPE,
3 kg of rare earth composite stabilizer, 1 kg of higher fatty acid salt, 2 kg of silane coupling agent.
Comparative example 2:
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 80 parts of polyvinyl chloride resin, tripropylene glycol
15 parts of diacrylate, 30 parts of carboxy nitrile rubber, 6 parts of rare earth composite stabilizer, 3 parts of zinc oxide/polyvinyl chloride, three second of aminopropyl
5 parts of oxysilane, 15 parts of mica powder.
Comparative example 3
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 65 parts of polyvinyl chloride resin, triallyl nitrile urea
15 parts of acid esters, SBR15 parts, 4 parts of rare earth composite stabilizer, 3 parts of zinc oxide/polyvinyl chloride, 3 parts of titanate coupling agent, nanoscale light calcium
6 parts, 6 parts of zirconium oxide.
Comparative example 4
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 65 parts of polyvinyl chloride resin, triallyl nitrile urea
15 parts of acid esters, SBR15 parts, 4 parts of rare earth composite stabilizer, 3 parts of zinc oxide/polyvinyl chloride, 3 parts of titanate coupling agent, nanoscale light calcium
6 parts, 6 parts of zirconium oxide, 10 parts of hydrotalcite.
Comparative example 5
A kind of unleaded drainage pipe of novel hard polyvinyl chloride, including following components by weight percent: 65 parts of polyvinyl chloride resin, triallyl nitrile urea
15 parts of acid esters, SBR15 parts, 4 parts of rare earth composite stabilizer, 3 parts of zinc oxide/polyvinyl chloride, 3 parts of titanate coupling agent, nanoscale light calcium
6 parts, 6 parts of zirconium oxide, 1 part of hydrotalcite.
The antibacterial PVC pipe of 1-6 of the embodiment of the present invention, comparative example 1-5 are done into following test:
(1) vicat softening temperature measurement experiment
The sample of 1-6 of the embodiment of the present invention, comparative example 1-5 are materialsed and measure its dimension card softening with vicat softening temperature analyzer
Temperature is followed successively by 93 DEG C, 96 DEG C, 96 DEG C, 103 DEG C, 105 DEG C, 102 DEG C, 89 DEG C, 90 DEG C, 90 DEG C, 90 DEG C, 91 DEG C.
(2) impact strength measurement test
The impact strength of the sample of 1-6 of the embodiment of the present invention, comparative example 1-5, measurement result are measured according to GB 1943-2007
Successively are as follows: 44kJ/m2、45kJ/m2、48kJ/m2、48kJ/m2、46kJ/m2、48kJ/m2、38 kJ/m2、41 kJ/m2、41 kJ/
m2、45 kJ/m2、45 kJ/m2。
(3) permissible working pressure measurement experiment
The sample of 1-6 of the embodiment of the present invention, comparative example 1-5 are measured in 20 DEG C of permissible working pressures, measurement result is successively are as follows:
32MPa, 32MPa, 38MPa, 35 MPa, 38 MPa, 36 MPa, 25MPa, 30MPa, 32MPa, 34MPa, 35MPa.
According to the above experiment, it can be seen that high intensity, high tenacity, the dimensional stability of unleaded tubing of the invention are better
Feature.
Claims (10)
1. a kind of unleaded drainage pipe of novel hard polyvinyl chloride, which is characterized in that the component including following parts by weight: polyvinyl chloride resin
60-80 parts, 10-15 parts of polyfunctional group unsaturated monomer, 10-30 parts of plasticized modifier, 3-6 parts of rare earth composite stabilizer, lubrication
1-3 parts of agent, 2-5 parts of coupling agent, 0-15 parts of filler.
2. a kind of unleaded drainage pipe of novel hard polyvinyl chloride according to claim 1, which is characterized in that multi-functional unsaturation
Monomer is trimethylol-propane trimethacrylate, trimethylolpropane trimethacrylate, triallyl isonitrile urea acid esters, three
Allyl cyanide urea acid esters, dimethacrylate tetraethylene glycol ester, diacrylate tetraethylene glycol ester, tri (propylene glycol) diacrylate,
One of dipropylene glycol diacrylate is a variety of.
3. a kind of unleaded drainage pipe of novel hard polyvinyl chloride according to claim 1, which is characterized in that rare earth stable composition
Agent includes rare-earth stearate element, calcium stearate, zinc stearate.
4. a kind of unleaded drainage pipe of novel hard polyvinyl chloride according to claim 1, which is characterized in that filler is nanometer
Grade light calcium and/or metal oxide.
5. a kind of unleaded drainage pipe of novel hard polyvinyl chloride according to claim 4, which is characterized in that metal in filler
Oxide is one or more of titanium dioxide, aluminium oxide, zirconium oxide, magnesia.
6. a kind of unleaded drainage pipe of novel hard polyvinyl chloride according to claim 1, which is characterized in that coupling agent is selected from silicon
Alkane coupling agent or titanate coupling agent.
7. a kind of unleaded drainage pipe of novel hard polyvinyl chloride according to claim 1, which is characterized in that lubricant is selected from oxygen
One of chlorinated polynvinyl chloride (CPVC), polyethylene wax, higher fatty acid salt, silicone oil are a variety of.
8. a kind of unleaded drainage pipe of novel hard polyvinyl chloride according to claim 1, which is characterized in that further include hydrotalcite
4-8 parts by weight.
9. a kind of unleaded drainage pipe of novel hard polyvinyl chloride according to claim 8, which is characterized in that the hydrotalcite is
Resin modified hydrotalcite.
10. a kind of preparation method of the unleaded drainage pipe of novel hard polyvinyl chloride comprising following steps:
(1) according to polyvinyl chloride resin 60-80 parts by weight, polyfunctional group unsaturated monomer 10-15 parts by weight, plasticized modifier 10-30
Parts by weight, rare earth composite stabilizer 3-6 parts by weight, lubricant 1-3 parts by weight, coupling agent 2-5 parts by weight, filler 0-15 weight
Part, get out raw material；
(2) polyvinyl chloride resin is heated to 95 ~ 100 DEG C；Lubricant is added, stirs evenly, extruding pelletization obtains plastic master batch；
(3) filler and plasticized modifier for using coupling agent surface treatment is added in plastic master batch, and mixing temperature reaches 95 ~ 100
DEG C, polyfunctional group unsaturated monomer is added, mixture temperature is stirred evenly up to 120 ~ 130 DEG C, obtains mixture；
(4) mixture carries out spoke by Co-60- gamma-rays or high energy electron ray in 4 ~ 6h after 40 ~ 45 DEG C of extrusion moldings or injection molding
According to crosslinking, tubing is obtained.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694690A (en) * | 2020-12-24 | 2021-04-23 | 临海伟星新型建材有限公司 | Preparation method of high-strength high-impact PVC (polyvinyl chloride) high-rise drain pipe |
| CN113969028A (en) * | 2021-11-24 | 2022-01-25 | 广东领亚新材料科技有限公司 | High-strength high-temperature-resistant irradiation cross-linked polyvinyl chloride insulated wire material |
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