CN108676286A - The preparation method of PVC pipe composition and PVC pipe - Google Patents
The preparation method of PVC pipe composition and PVC pipe Download PDFInfo
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- CN108676286A CN108676286A CN201810552367.2A CN201810552367A CN108676286A CN 108676286 A CN108676286 A CN 108676286A CN 201810552367 A CN201810552367 A CN 201810552367A CN 108676286 A CN108676286 A CN 108676286A
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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
-
- 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
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
Abstract
The present invention provides the preparation method of PVC pipe composition and PVC pipe, wherein PVC pipe composition is made of the raw material of following parts by weight：100 200 parts of polyvinyl chloride resin, 24 parts of white carbon, 0.2 0.4 parts of zinc oxide, 0.1 0.2 parts of magnesia, three (2,4 di-tert-butyl-phenyls) 0.7 0.8 parts of phosphite ester, 24 parts of coupling agent, 0.01 0.03 parts of binder, 23 parts of filler, 56 parts of reinforcing fiber, the preparation method of PVC pipe mainly includes the following steps that：S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after other component materials are added, extrusion obtain particulate material；S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, and PVC pipe is obtained after cutting after tubing cooling.
Description
Technical field
The present invention relates to the preparations for being PVC pipe composition and PVC pipe, specifically PVC pipe composition and PVC pipe
Preparation method.
Background technology
PVC, main ingredient are polyvinyl chloride, and other compositions are added to enhance a kind of material of its heat resistance, toughness, ductility
Material.Pvc pipe or hard polvinyl choride pipe, be with Corvic and stabilizer, lubricant etc. after be squeezed into pressure sintering
Type is the plastic pipe being developed and applied earliest.Pvc pipe resistance to corrosion is strong, be easy to bonding, price is low, quality is hard, but
It is due to having PVC monomers and additive exudation, being only applicable in water supply system of the delivery temperature no more than 45 DEG C.Plastic conduit is used
In draining, waste water, chemicals heats liquid and coolant liquid, food, ultrarapture liquid, mud, gas, compressed air and vacuum system
Application.
China's PVC pipeline production capacity mainly has PVC, PE and PP-R pipeline three categories, wherein pvc pipe up to 3,000,000 tons
Road is the maximum plastic conduit of the market share, accounts for the share of plastic conduit nearly 70%.More than 1600 item of PVC pipe production line.Nian Sheng
2,500,000 tons of production capacity power or more, PVC pipeline (pipe fitting) annual output in 2003 is up to more than 120 ten thousand tons.In plastic conduit, the share of PVC
25%, PP-R, which is accounted for, for 70%, PE accounts for 4%, it is other to account for 1%.
It is based on, the extensive and applications well foreground of PVC pipeline application field, it is a series of about PVC pipeline and its pvc pipe
Patent document, the paper periodical of the preparation method process modification in road are reported in succession, as China Patent No. is：
CN201610561250.1, it is open " a kind of modified PVC and preparation method thereof ", however, the preparation for passing through the patent literature
Method obtains PVC pipeline, and not only anti-corrosion fungus resistance can be poor, and physical strength is poor, non-refractory, in view of the shortcomings of the prior art, so far
There is not a kind of implementation effective means solution.
Invention content
(1) the technical issues of solving
In view of the deficiency of the prior art, the present invention provides the preparation side of PVC pipe composition and PVC pipe
PVC pipe not only high temperature resistant, resistance to bacterial corrosion is prepared in method, component materials disclosed by the invention and preparation method, together
When have preferable physical strength.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of PVC pipe composition, is made of the raw material of following parts by weight：100-200 parts of polyvinyl chloride resin, white carbon 2-4
Part, 0.2-0.4 parts of zinc oxide, 0.1-0.2 parts of magnesia, three 0.7-0.8 parts of (2,4- di-tert-butyl-phenyls) phosphite esters, coupling
2-4 parts of agent, 0.01-0.03 parts of binder, 2-3 parts of filler, 5-6 parts of reinforcing fiber.
Preferably, the coupling agent is silane coupling agent.
Preferably, the reinforcing fiber is any in carbon fiber, glass fibre, ceramic fibre.
Preferably, the filler includes that the raw material of following parts by weight is made:15-20 parts of kaolin, 5-8 parts of metakaolin,
4-6 parts of rubber powder, 0.2-0.4 parts of quartz sand.
The preparation method of above-mentioned PVC pipe composition includes the following steps：
S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after by its
He is added component materials, and extrusion obtains particulate material；
Wherein, the temperature in vented twin-screw extruder includes barrel temperature and die head temperature, and barrel temperature is divided into one
Area to 7th area, one area's temperature of control are 172-183 DEG C, and two area's temperature are 189-202 DEG C, and three area's temperature are 216-228 DEG C, 4th area
Temperature is 235-243 DEG C, and five area's temperature are 249-254 DEG C, and six area's temperature are 258-263 DEG C, and seven area's temperature are 267-271
DEG C, die head temperature is 252-254 DEG C；
S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, pipe
PVC pipe is obtained after cutting after material cooling；
Wherein, the temperature in single screw extrusion machine includes barrel temperature and die head temperature, and barrel temperature is divided into an area to seven
Area, one area's temperature of control are 185-189 DEG C, and two area's temperature are 208-219 DEG C, and three area's temperature are 221-224 DEG C, and four area's temperature are
231-237 DEG C, five area's temperature are 249-258 DEG C, and six area's temperature are 261-264 DEG C, and seven area's temperature are 267-275 DEG C, die head
Temperature is 242-249 DEG C.
Preferably, it after the PVC pipe obtained in the step S2, is polished in PVC pipe wall, spray treatment.
Advantageous effect
The present invention provides the preparation method of PVC pipe composition and PVC pipe, pass through addition in PVC pipe composition
The component materials such as white carbon, reinforcing fiber are effectively increased the hardness of tubing, and antibacterial action, city can be played by adding zinc oxide
Often deposit organic matter in city's pipeline, effectively avoids a large amount of bacterial adsorption pipelines from giving birth to by adding zinc oxide in component materials
It is long, avoid the metabolite of bacterium from overlooking pipeline.
The filler added in component materials, filler are mainly kaolin, wherein kaolin itself is inhaled with higher bonding
Attached performance can effectively increase the bond properties of component materials.Silica in filler can change entire component materials
Property, improve the physical strength of component materials and wear-resisting, corrosion resistance.
In preparation method, particulate material is obtained by squeezing out component materials in vented twin-screw extruder in advance, then
The extrusion molding in single screw extrusion machine by component materials, component materials are by extrusion profile twice, not only between material component
Binding performance be improved, and be combined with each other between each component material molecule in extrusion twice, form chemical bond force, knot
Conjunction degree further increases.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Embodiment 1:
A kind of PVC pipe composition, is made of the raw material of following parts by weight：100 parts of polyvinyl chloride resin, 2 parts of white carbon, oxidation
0.2 part of zinc, 0.1 part of magnesia, three 0.8 part of (2,4- di-tert-butyl-phenyls) phosphite esters, 4 parts of coupling agent, 0.03 part of binder,
2 parts of filler, 5 parts of carbon fiber.
The preparation method of above-mentioned PVC pipe composition includes the following steps：
S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after by its
He is added component materials, and extrusion obtains particulate material；
Wherein, the temperature in vented twin-screw extruder includes barrel temperature and die head temperature, and barrel temperature is divided into one
Area to 7th area, one area's temperature of control are 172 DEG C, and two area's temperature are 189 DEG C, and three area's temperature are 216 DEG C, and four area's temperature are 243 DEG C,
Five area's temperature are 254 DEG C, and six area's temperature are 263 DEG C, and seven area's temperature are 267 DEG C, and die head temperature is 252 DEG C；
S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, pipe
PVC pipe is obtained after cutting after material cooling；
Wherein, the temperature in single screw extrusion machine includes barrel temperature and die head temperature, and barrel temperature is divided into an area to seven
Area, one area's temperature of control are 185 DEG C, and two area's temperature are 208 DEG C, and three area's temperature are 221 DEG C, and four area's temperature are 237 DEG C, five area's temperature
Degree is 258 DEG C, and six area's temperature are 264 DEG C, and seven area's temperature are 267 DEG C, and die head temperature is 242 DEG C.
Wherein, the coupling agent is silane coupling agent.
Wherein, it after the PVC pipe obtained in step S2, is polished in PVC pipe wall, spray treatment.
Embodiment 2:
A kind of PVC pipe composition, is made of the raw material of following parts by weight：200 parts of polyvinyl chloride resin, 4 parts of white carbon, oxidation
0.4 part of zinc, 0.1 part of magnesia, three 0.7 part of (2,4- di-tert-butyl-phenyls) phosphite esters, 2 parts of coupling agent, 0.03 part of binder,
3 parts of filler, 6 parts of reinforcing fiber.
The preparation method of above-mentioned PVC pipe composition includes the following steps：
S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after by its
He is added component materials, and extrusion obtains particulate material；
Wherein, the temperature in vented twin-screw extruder includes barrel temperature and die head temperature, and barrel temperature is divided into one
Area to 7th area, one area's temperature of control are 183 DEG C, and two area's temperature are 202 DEG C, and three area's temperature are 228 DEG C, and four area's temperature are 235 DEG C,
Five area's temperature are 249 DEG C, and six area's temperature are 258 DEG C, and seven area's temperature are 271 DEG C, and die head temperature is 254 DEG C；
S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, pipe
PVC pipe is obtained after cutting after material cooling；
Wherein, the temperature in single screw extrusion machine includes barrel temperature and die head temperature, and barrel temperature is divided into an area to seven
Area, one area's temperature of control are 189 DEG C, and two area's temperature are 219 DEG C, and three area's temperature are 224 DEG C, and four area's temperature are 231 DEG C, five area's temperature
Degree is 249 DEG C, and six area's temperature are 261 DEG C, and seven area's temperature are 275 DEG C, and die head temperature is 249 DEG C.
Wherein, the coupling agent is silane coupling agent.
Wherein, it after the PVC pipe obtained in step S2, is polished in PVC pipe wall, spray treatment.
Embodiment 3:
A kind of PVC pipe composition, is made of the raw material of following parts by weight：150 parts of polyvinyl chloride resin, 3 parts of white carbon, oxidation
0.3 part of zinc, 0.1 part of magnesia, three 0.6 part of (2,4- di-tert-butyl-phenyls) phosphite esters, 3 parts of coupling agent, 0.02 part of binder,
2.5 parts of filler, 5.3 parts of reinforcing fiber.
The preparation method of above-mentioned PVC pipe composition includes the following steps：
S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after by its
He is added component materials, and extrusion obtains particulate material；
Wherein, the temperature in vented twin-screw extruder includes barrel temperature and die head temperature, and barrel temperature is divided into one
Area to 7th area, one area's temperature of control are 174 DEG C, and two area's temperature are 189 DEG C, and three area's temperature are 218 DEG C, and four area's temperature are 239 DEG C,
Five area's temperature are 251 DEG C, and six area's temperature are 260 DEG C, and seven area's temperature are 268 DEG C, and die head temperature is 253 DEG C；
S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, pipe
PVC pipe is obtained after cutting after material cooling；
Wherein, the temperature in single screw extrusion machine includes barrel temperature and die head temperature, and barrel temperature is divided into an area to seven
Area, control one area's temperature be 187 DEG C, two area's temperature be 208-219 DEG C, three area's temperature be 223 DEG C, four area's temperature be 235 DEG C, five
Area's temperature is 252 DEG C, and six area's temperature are 263 DEG C, and seven area's temperature are 270 DEG C, and die head temperature is 243 DEG C.
Wherein, the coupling agent is silane coupling agent.
Wherein, it after the PVC pipe obtained in step S2, is polished in PVC pipe wall, spray treatment.
Embodiment 4:
A kind of PVC pipe composition, is made of the raw material of following parts by weight：180 parts of polyvinyl chloride resin, 3 parts of white carbon, oxidation
0.3 part of zinc, 0.1 part of magnesia, three 0.8 part of (2,4- di-tert-butyl-phenyls) phosphite esters, 3 parts of coupling agent, 0.02 part of binder,
2.5 parts of filler, 5.5 parts of glass fibre.
The preparation method of above-mentioned PVC pipe composition includes the following steps：
S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after by its
He is added component materials, and extrusion obtains particulate material；
Wherein, the temperature in vented twin-screw extruder includes barrel temperature and die head temperature, and barrel temperature is divided into one
Area to 7th area, one area's temperature of control are 175 DEG C, and two area's temperature are 195 DEG C, and three area's temperature are 225 DEG C, and four area's temperature are 239 DEG C,
Five area's temperature are 251 DEG C, and six area's temperature are 260 DEG C, and seven area's temperature are 268 DEG C, and die head temperature is 253 DEG C；
S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, pipe
PVC pipe is obtained after cutting after material cooling；
Wherein, the temperature in single screw extrusion machine includes barrel temperature and die head temperature, and barrel temperature is divided into an area to seven
Area, one area's temperature of control are 186 DEG C, and two area's temperature are 212 DEG C, and three area's temperature are 223 DEG C, and four area's temperature are 236 DEG C, five area's temperature
Degree is 253 DEG C, and six area's temperature are 262 DEG C, and seven area's temperature are 271 DEG C, and die head temperature is 246 DEG C.
Wherein, the coupling agent is silane coupling agent.
Wherein, it after the PVC pipe obtained in step S2, is polished in PVC pipe wall, spray treatment.
Embodiment 5:
A kind of PVC pipe composition, is made of the raw material of following parts by weight：142 parts of polyvinyl chloride resin, 3 parts of white carbon, oxidation
0.3 part of zinc, 0.1 part of magnesia, three 0.7 part of (2,4- di-tert-butyl-phenyls) phosphite esters, 3 parts of coupling agent, 0.02 part of binder,
2.5 parts of filler, 6 parts of ceramic fibre.
The preparation method of above-mentioned PVC pipe composition includes the following steps：
S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after by its
He is added component materials, and extrusion obtains particulate material；
Wherein, the temperature in vented twin-screw extruder includes barrel temperature and die head temperature, and barrel temperature is divided into one
Area to 7th area, one area's temperature of control are 174 DEG C, and two area's temperature are 196 DEG C, and three area's temperature are 216 DEG C, and four area's temperature are 239 DEG C,
Five area's temperature are 249-254 DEG C, and six area's temperature are 260 DEG C, and seven area's temperature are 269 DEG C, and die head temperature is 253 DEG C；
S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, pipe
PVC pipe is obtained after cutting after material cooling；
Wherein, the temperature in single screw extrusion machine includes barrel temperature and die head temperature, and barrel temperature is divided into an area to seven
Area, one area's temperature of control are 185 DEG C, and two area's temperature are 212 DEG C, and three area's temperature are 222 DEG C, and four area's temperature are 234 DEG C, five area's temperature
Degree is 250 DEG C, and six area's temperature are 263 DEG C, and seven area's temperature are 271 DEG C, and die head temperature is 242 DEG C.
Wherein, the coupling agent is silane coupling agent.
Wherein, it after the PVC pipe obtained in step S2, is polished in PVC pipe wall, spray treatment.
Embodiment 6:
A kind of PVC pipe composition, is made of the raw material of following parts by weight：152 parts of polyvinyl chloride resin, 3 parts of white carbon, oxidation
0.3 part of zinc, 0.2 part of magnesia, three 0.78 part of (2,4- di-tert-butyl-phenyls) phosphite esters, 3 parts of coupling agent, binder 0.02
Part, 2.5 parts of filler, 5-6 parts of ceramic fibre.
The preparation method of above-mentioned PVC pipe composition includes the following steps：
S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after by its
He is added component materials, and extrusion obtains particulate material；
Wherein, the temperature in vented twin-screw extruder includes barrel temperature and die head temperature, and barrel temperature is divided into one
Area to 7th area, one area's temperature of control are 178 DEG C, and two area's temperature are 201 DEG C, and three area's temperature are 218 DEG C, and four area's temperature are 240 DEG C,
Five area's temperature are 250 DEG C, and six area's temperature are 259 DEG C, and seven area's temperature are 270 DEG C, and die head temperature is 251 DEG C；
S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, pipe
PVC pipe is obtained after cutting after material cooling；
Wherein, the temperature in single screw extrusion machine includes barrel temperature and die head temperature, and barrel temperature is divided into an area to seven
Area, one area's temperature of control are 186 DEG C, and two area's temperature are 212 DEG C, and three area's temperature are 223 DEG C, and four area's temperature are 232 DEG C, five area's temperature
Degree is 256 DEG C, and six area's temperature are 263 DEG C, and seven area's temperature are 269 DEG C, and die head temperature is 244 DEG C.
Wherein, the coupling agent is silane coupling agent.
Wherein, it after the PVC pipe obtained in step S2, is polished in PVC pipe wall, spray treatment.
Performance test：
The PVC pipe that the embodiment of the present invention 1 is prepared is tested for the property, and test result is as shown in table 1, wherein right
According to the PVC pipe that group is commercially available traditional performance：
Table 1
As shown in Table 1, the PVC pipe performance for the more commercially available traditional performance of PVC pipe physicochemical property that the present invention is prepared
Preferably.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that:It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of PVC pipe composition, which is characterized in that be made of the raw material of following parts by weight：It is 100-200 parts of polyvinyl chloride resin, white
2-4 parts of carbon black, 0.2-0.4 parts of zinc oxide, 0.1-0.2 parts of magnesia, three (2,4- di-tert-butyl-phenyls) phosphite ester 0.7-0.8
Part, 2-4 parts of coupling agent, 0.01-0.03 parts of binder, 2-3 parts of filler, 5-6 parts of reinforcing fiber.
2. PVC pipe composition according to claim 1, which is characterized in that the coupling agent is silane coupling agent.
3. PVC pipe composition according to claim 1, which is characterized in that the reinforcing fiber is carbon fiber, glass fibers
Any fiber in dimension, ceramic fibre.
4. PVC pipe composition according to claim 1, which is characterized in that the filler includes the original of following parts by weight
Material is made:15-20 parts of kaolin, 5-8 parts of metakaolin, 4-6 parts of rubber powder, 0.2-0.4 parts of quartz sand.
5. according to the preparation method of any PVC pipe compositions of claim 1-5, which is characterized in that including following step
Suddenly：
S1, polyvinyl chloride resin, reinforcing fiber, filler are added in vented twin-screw extruder, it is agitated uniformly after by other groups
Part material is added, and extrusion obtains particulate material；
Wherein, the temperature in vented twin-screw extruder includes barrel temperature and die head temperature, and barrel temperature is divided into an area extremely
7th area, one area's temperature of control are 172-183 DEG C, and two area's temperature are 189-202 DEG C, and three area's temperature are 216-228 DEG C, four area's temperature
It it is 235-243 DEG C, five area's temperature are 249-254 DEG C, and six area's temperature are 258-263 DEG C, and seven area's temperature are 267-271 DEG C, mould
Head temperature is 252-254 DEG C；
S2, the particulate material in step S1 is placed into single screw rod tube extrusion molding machine, extrusion molding obtains tubing, and tubing is cold
But PVC pipe is obtained after cutting afterwards；
Wherein, the temperature in single screw extrusion machine includes barrel temperature and die head temperature, and barrel temperature is divided into an area to 7th area, control
It is 185-189 DEG C to make area's temperature, and two area's temperature are 208-219 DEG C, and three area's temperature are 221-224 DEG C, and four area's temperature are 231-
237 DEG C, five area's temperature are 249-258 DEG C, and six area's temperature are 261-264 DEG C, and seven area's temperature are 267-275 DEG C, die head temperature
It is 242-249 DEG C.
6. the preparation method of PVC pipe composition according to claim 5, which is characterized in that obtained in the step S2
PVC pipe after, be polished in PVC pipe wall, spray treatment.
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| CN201810552367.2A CN108676286A (en) | 2018-05-31 | 2018-05-31 | The preparation method of PVC pipe composition and PVC pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112812469A (en) * | 2021-01-20 | 2021-05-18 | 山东华海塑胶建材有限公司 | Anti-weathering pipeline and preparation method thereof |
| CN114605755A (en) * | 2022-04-07 | 2022-06-10 | 杭州金泰塑业有限公司 | Antistatic toughened PVC pipe and preparation process thereof |
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Application publication date: 20181019 |