CN106566121A - Novel modified polyvinyl chloride pipe fitting and preparation method thereof - Google Patents
Novel modified polyvinyl chloride pipe fitting and preparation method thereof Download PDFInfo
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- CN106566121A CN106566121A CN201610962245.1A CN201610962245A CN106566121A CN 106566121 A CN106566121 A CN 106566121A CN 201610962245 A CN201610962245 A CN 201610962245A CN 106566121 A CN106566121 A CN 106566121A
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- pipe fitting
- parts
- chloride pipe
- heat
- polrvinyl chloride
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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
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- 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
-
- 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
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a novel modified polyvinyl chloride pipe fitting and a preparation method thereof. The polyvinyl chloride pipe fitting is composed of the following raw materials in parts by weight: 100 parts of PVC resin, 10-30 parts of silicate-like modifier, 5-10 parts of heat-resistant modifier and 1-5 parts of processing aids, wherein the silicate-like modifier is a superfine fibre-shaped wollastonite powder subjected to surface treatment; and the heat-resistant modifier is one or more of alpha-methyl styryl polymer and alpha-styryl polymers. The polyvinyl chloride pipe fitting provided by the invention is high in physical and mechanical property, has a high Vicat softening point, and is high in weather resistance, dimensional stability and smooth finish.
Description
Technical field
It is the present invention relates to the modified and processed and applied technical field of macromolecular material more particularly to a kind of new modified poly-
Vinyl chloride pipe fitting and preparation method thereof.
Background technology
At present, based on hard, wherein PVC pipe is RPVC injection molding generation to world's PVC plastic material products
Table kind.Corvic shows hard and crisp characteristic due to the polar bond between macromole.Due to RPVC punching
Hit poor with resistance to low temperature, impact modifier must be blended in resin, the impact modifier used in prior art is generally
CPE（Chliorinated polyvinyl chloride）, MBS (methymethacrylates-BS）；Meanwhile, for reduces cost,
Product rigidity is improved, shrinkage factor etc. is reduced, generally requires to add filler in resin, filler used is generally levigate sum
Calcium Carbonate, Pulvis Talci of precipitation etc., obtained PVC pipe can meet make in normal circumstances after both material modifications
With requiring.But under the severe special environment such as the strong, high temperature of long-term outdoor illumination（Such as Xinjiang of China, Hainan, external Southeast Asia, in
The areas such as east）Easily occur when using pipe fitting deformation, rupture, fade the problems such as, so as to limit its in particular circumstances should
With.
Therefore, still need to study that a kind of physical and mechanical propertiess are good, Vicat softening point is high, good stability of the dimension, weather resistance it is excellent
Different polrvinyl chloride pipe fitting.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of new modified polrvinyl chloride pipe fitting, this
The polrvinyl chloride pipe fitting that invention is provided not only has preferable physical and mechanical propertiess, also with higher Vicat softening point, well
Weatherability and dimensional stability.
Another object of the present invention is to provide the preparation method of above-mentioned new modified polrvinyl chloride pipe fitting.
For achieving the above object, the present invention is adopted the following technical scheme that：
A kind of new modified polrvinyl chloride pipe fitting, the polrvinyl chloride pipe fitting is made up of by mass fraction following raw material：
100 parts of polyvinyl chloride resin；
Silicate modified dose 10～30 parts of class；
5～10 parts of heat-proof modifier；
1～5 part of processing aid；
Wherein, silicate modified dose of the class is the super fine fibrous wollastonite in powder after surface treated；The heat-proof modifier
Birds of the same feather flock together one or more in compound for α-methyl styrene based polyalcohol or α-styryl.
The present invention from Jing surface activation process super fine fibrous wollastonite in powder and α-methyl styrene based polyalcohol or
α-styryl compound heat-proof modifier of birdsing of the same feather flock together substitutes conventional use of CPE, MBS class anti-impact modifier and Calcium Carbonate, Talcum
Powder class inserts.It is resistance to by super fine fibrous wollastonite in powder and α-methyl styrene based polyalcohol or α-styryl compound of birdsing of the same feather flock together
The collaboration enhancing modified effect of heat modification agent improves the physical and mechanical propertiess and Vicat softening point of polrvinyl chloride pipe fitting, enhances
The weather resistance and raising plumbing dimensions stability and fineness of pipe fitting；The new modified polyvinyl chloride pipe that the present invention is provided
Part effectively overcome under the severe special environment such as strong, high temperature of long-term outdoor illumination as Xinjiang of China, Hainan, external Southeast Asia,
The problems such as easily occurring pipe fitting deformation, rupture when the areas such as the Middle East use, fade, has greatly expanded answering for polrvinyl chloride pipe fitting
Use scope.
In the present invention, silicate modified dose of the class is Jing after silane coupler or aluminate coupling agent surface active
Super fine fibrous wollastonite in powder.
Preferably, the particle diameter of the ultra-fine wollastonite in powder be 3.9～4.2 μm, length be 45.2～52.7 μm, draw ratio be
11.5～12.5：1.
Preferably, the heat-proof modifier is α-methyl styrene based polyalcohol；It is further preferable that the Alpha-Methyl benzene second
Product designation NR-188 of alkenyl polymer.
Preferably, the polyvinyl chloride resin is SG-7 types or SG-8 type resins.
Preferably, the processing aid is the one kind in heat stabilizer, processing modified adjuvant, lubricant, antioxidant, pigment
Or it is several.
Preferably, the heat stabilizer is asepsis environment-protecting calcium zinc stabilizer.
Preferably, the processing modified adjuvant is acrylic ester compound ACR.
Preferably, the lubricant is the one kind in Tissuemat E, OPE, fatty acid lipid or metal soap
Or it is several.
Preferably, the antioxidant is phenols or the mixture of one or more in phosphite ester kind antioxidant.
Preferably, the pigment is the mixture of one or more in titanium dioxide, white carbon black or coloring agent.
Used as a kind of preferred version, the polrvinyl chloride pipe fitting is made up of by mass fraction following raw material：
100 parts of polyvinyl chloride resin；
Silicate modified dose 10～30 parts of class；
5～10 parts of heat-proof modifier；
1～8 part of heat stabilizer；
0.5～4 part of processing modified adjuvant；
0.5～3 part of lubricant；
0.1～1 part of antioxidant；
0.01～5 part of pigment；
Wherein, silicate modified dose of the class is the super fine fibrous wollastonite in powder after surface treated；The heat-proof modifier
Birds of the same feather flock together one or more in compound for α-methyl styrene based polyalcohol or α-styryl.
The preparation method of above-mentioned new modified polrvinyl chloride pipe fitting, methods described comprises the steps：
S1：After each raw material components mix homogeneously, adding in high speed heat batch mixer carries out mixing dispersion, 110 are reached when temperature～
Stirring cooling in cold batch mixer is proceeded to when 115 DEG C, hopper is entered when temperature drops to 55 DEG C, it is standby；S2：By the mixed ingredients in S1
It is added in extruder plasticizing, extruding pelletization, it is cooling, standby；
S3：Stand-by pellet in S2 is added into injection moulding in injection machine, Jing pressurize cooling, the demoulding, after pruning packaging PVC is obtained final product
Pipe fitting.
Preferably, extruder described in S2 is conical double screw extruder, and barrel zone temperature is 150～180 DEG C, described in S3
The forming temperature of injection machine is 165～185 DEG C.
Compared with prior art, the present invention has the advantages that：
The new modified polyvinyl chloride pipe pipe fitting that the present invention is provided is compared with conventional polyvinyl chloride pipe fitting with physically better
Mechanical strength, higher Vicat softening point, and with more preferable weatherability, the stability and fineness of size.The present invention is carried
For new modified polrvinyl chloride pipe fitting be particularly well-suited to be used for a long time in the environment such as strong, the high temperature hostile weather of illumination.This
Bright selected raw material belongs to environment-protecting asepsis material, will not produce pollution and secondary pollution, has a good application prospect.
Specific embodiment
The present invention is further illustrated with reference to specific embodiment.Experimental technique used in following embodiments is such as without spy
Different explanation, is conventional method：In following embodiment, product designation NR- of the α-methyl styrene based polyalcohol
188, the particle diameter of the ultra-fine wollastonite in powder is 3.9～4.2 μm, length is 45.2～52.7 μm, draw ratio is 11.5～12.5：
1.Used raw material, auxiliary agent etc., if no special instructions, be the raw material and help that commercial sources obtain such as can buy from conventional market
Agent.
Embodiment 1
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 5.5 parts of heat stabilizer (calcium zinc stabilizer), 2.0 parts of processing modified adjuvant (ACR), eka-silicon
Sulfonate modified dose（Super fine fibrous wollastonite in powder）20 parts, heat-proof modifier（α-methyl styrene based polyalcohol）5 parts, lubricant
（Tissuemat E）1.5 parts, lubricant（Oxidic polyethylene）0.2 part, lubricant（Calcium stearate）0.5 part, 0.2 part of antioxidant, face
2.5 parts of material (titanium dioxide).
Embodiment 2
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-7) 100 parts, heat stabilizer (calcium zinc stabilizer）6.5 parts, 3.0 parts of processing modified adjuvant (ACR), eka-silicon
Sulfonate modified dose（Super fine fibrous wollastonite in powder）30 parts, heat-proof modifier（α-methyl styrene based polyalcohol or）10 parts, profit
Lubrication prescription（Tissuemat E）2.0 parts, lubricant（Oxidic polyethylene）0.2 part, lubricant（Calcium stearate）1.0 parts, antioxidant 0.2
Part, pigment (titanium dioxide) 2.5.
Embodiment 3
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 6 parts of heat stabilizer (calcium zinc stabilizer), 0.5 part of processing modified adjuvant (ACR), class silicic acid
Salt modifying agent（Super fine fibrous wollastonite in powder）10 parts, heat-proof modifier（α-methyl styrene based polyalcohol）5 parts, lubricant
（Tissuemat E）1.5 parts, lubricant（Oxidic polyethylene）0.2 part, lubricant（Calcium stearate）0.5 part, 0.2 part of antioxidant, face
0.01 part of material (titanium dioxide).
Embodiment 4
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 8 parts of heat stabilizer (calcium zinc stabilizer), 4 parts of processing modified adjuvant (ACR), class silicate
Modifying agent（Super fine fibrous wollastonite in powder）30 parts, heat-proof modifier（α-styryl is birdsed of the same feather flock together compound）10 parts, lubricant（Poly- second
Alkene wax）1.5 parts, lubricant（Oxidic polyethylene）0.2 part, lubricant（Calcium stearate）0.5 part, 1 part of antioxidant, pigment (titanium white
Powder) 5 parts.
Embodiment 5
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 5 parts of heat stabilizer (calcium zinc stabilizer), 0.5 part of processing modified adjuvant (ACR), class silicic acid
Salt modifying agent（Super fine fibrous wollastonite in powder）10 parts, heat-proof modifier（α-methyl styrene based polyalcohol）5 parts, lubricant
（Tissuemat E）0.5 part, lubricant（Oxidic polyethylene）0.2 part, lubricant（Calcium stearate）0.5 part, 0.2 part of antioxidant, face
2.5 parts of material (titanium dioxide).
Embodiment 6
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 8 parts of heat stabilizer (calcium zinc stabilizer), 4 parts of processing modified adjuvant (ACR), class silicate
Modifying agent（Super fine fibrous wollastonite in powder）30 parts, heat-proof modifier（α-methyl styrene based polyalcohol）10 parts, lubricant（It is poly-
Ethylene waxes）3 parts, lubricant（Oxidic polyethylene）0.2 part, lubricant（Calcium stearate）0.5 part, 0.2 part of antioxidant, pigment (titanium
White lead) 2.5 parts.
Embodiment 7
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 5 parts of heat stabilizer (calcium zinc stabilizer), 2.0 parts of processing modified adjuvant (ACR), class silicic acid
Salt modifying agent（Super fine fibrous wollastonite in powder）20 parts, heat-proof modifier（α-methyl styrene based polyalcohol）6 parts, lubricant
（Tissuemat E）1.5 parts, lubricant（Oxidic polyethylene）0.2 part, lubricant（Calcium stearate）0.5 part, 0.2 part of antioxidant, face
2.5 parts of material (titanium dioxide).
Embodiment 8
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 6 parts of heat stabilizer (calcium zinc stabilizer), 3 parts of processing modified adjuvant (ACR), class silicate
Modifying agent（Super fine fibrous wollastonite in powder）25 parts, heat-proof modifier（α-methyl styrene based polyalcohol）7 parts, lubricant（It is poly-
Ethylene waxes）1.5 parts, lubricant（Oxidic polyethylene）0.2 part, lubricant（Calcium stearate）0.5 part, 0.2 part of antioxidant, pigment
2.5 parts of (titanium dioxide).
The polrvinyl chloride pipe fitting processing method of the various embodiments described above, comprises the following steps：
（1）Mixing
After according to the mixing of each raw material components, adding in high speed heat batch mixer carries out mixing dispersion, proceeds to when temperature reaches 110 DEG C
Stirring cooling, hopper is entered when temperature drops to 55 DEG C in cold batch mixer, stand-by；
（2）Extruder granulating and forming
The mixed ingredients for having cooled down addition conical double screw extruder is carried out into extruding pelletization, the barrel zone temperature of extruder is set to
165 DEG C, 165 DEG C, 160 DEG C, 155 DEG C, 155 DEG C, 150 DEG C, die head temperature is 160 DEG C, 165 DEG C, and pellet is Jing after vibrations tower cooler
Packing, it is stand-by.
（3）Injection machine injection mo(u)lding
Add injection machine injection moulding to obtain finished product PVC pipe Jing pressurize cooling, the demoulding, after pruning packaging stand-by pellet, take out
Sample detects physical property.
The polrvinyl chloride pipe fitting that embodiment 1～8 is prepared carries out the performance tests such as thermostability, weatherability, test side
Method see the table below 1 with reference to standard GB/T/T5836.2-2006, test result.
Comparative example 1
In this reference examples in addition to being not added with silicate modified dose of class, other components and consumption are same as Example 1.
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 5.5 parts of heat stabilizer (calcium zinc stabilizer), 2.0 parts of processing modified adjuvant (ACR) is heat-resisting
Modifying agent（α-methyl styrene based polyalcohol）5 parts, lubricant（Tissuemat E）1.5 parts, lubricant（Oxidic polyethylene）0.2
Part, lubricant（Calcium stearate）0.5 part, 0.2 part of antioxidant, 2.5 parts of pigment (titanium dioxide).
Comparative example 2
In this reference examples in addition to being not added with heat-proof modifier, other components and consumption are same as Example 1.
Pipe fitting formula is made up of the component of following parts by weight：
Polyvinyl chloride resin（SG-8) 100 parts, 5.5 parts of heat stabilizer (calcium zinc stabilizer), 2.0 parts of processing modified adjuvant (ACR), eka-silicon
Sulfonate modified dose（Super fine fibrous wollastonite in powder）20 parts, lubricant（Tissuemat E）1.5 parts, lubricant（Oxidic polyethylene）
0.2 part, lubricant（Calcium stearate）0.5 part, 0.2 part of antioxidant, 2.5 parts of pigment (titanium dioxide).
The performance test of the polrvinyl chloride pipe fitting that the embodiment 1～8 of table 1 and comparative example 1～2 are prepared
From upper table 1, the pipe fitting that the polyvinyl chloride pipe pipe fitting that various embodiments of the present invention are prepared is prepared with comparative example
Compare, the present invention has a physically better mechanical strength, higher Vicat softening point, and with more preferable weatherability, size
Stability and fineness.
Claims (10)
1. a kind of new modified polrvinyl chloride pipe fitting, it is characterised in that the polrvinyl chloride pipe fitting presses mass fraction by following
Raw material is constituted：
100 parts of polyvinyl chloride resin；
Silicate modified dose 10～30 parts of class；
5～10 parts of heat-proof modifier；
1～5 part of processing aid；
Wherein, silicate modified dose of the class is the super fine fibrous wollastonite in powder after surface treated；The heat-proof modifier
Birds of the same feather flock together one or more in compound for α-methyl styrene based polyalcohol or α-styryl.
2. polrvinyl chloride pipe fitting new modified according to claim 1, it is characterised in that silicate modified dose of the class is
Super fine fibrous wollastonite in powder Jing after silane coupler or aluminate coupling agent surface active.
3. polrvinyl chloride pipe fitting new modified according to claim 1, it is characterised in that the grain of the ultra-fine wollastonite in powder
Footpath is 3.9～4.2 μm, length is 45.2～52.7 μm, draw ratio is 11.5～12.5：1.
4. polrvinyl chloride pipe fitting new modified according to claim 1, it is characterised in that the heat-proof modifier is α-first
Base styrene-based polymer.
5. polrvinyl chloride pipe fitting new modified according to claim 4, it is characterised in that the α-methyl styrene base gathers
Product designation NR-188 of compound.
6. polrvinyl chloride pipe fitting new modified according to claim 1, it is characterised in that the polyvinyl chloride resin is SG-7 types
Or SG-8 type resins.
7. polrvinyl chloride pipe fitting new modified according to claim 1, it is characterised in that the processing aid is thermally-stabilised
One or more in agent, processing modified adjuvant, lubricant, antioxidant, pigment.
8. polrvinyl chloride pipe fitting new modified according to claim 1, it is characterised in that the polrvinyl chloride pipe fitting presses matter
Amount number is made up of following raw material：
100 parts of polyvinyl chloride resin；
Silicate modified dose 10～30 parts of class；
5～10 parts of heat-proof modifier；
1～8 part of heat stabilizer；
0.5～4 part of processing modified adjuvant；
0.5～3 part of lubricant；
0.1～1 part of antioxidant；
0.01～5 part of pigment；
Wherein, silicate modified dose of the class is the super fine fibrous wollastonite in powder after surface treated；The heat-proof modifier
Birds of the same feather flock together one or more in compound for α-methyl styrene based polyalcohol or α-styryl.
9. the preparation method of the arbitrary new modified polrvinyl chloride pipe fitting of claim 1～8, it is characterised in that the side
Method comprises the steps：
S1：After each raw material components mix homogeneously, adding in high speed heat batch mixer carries out mixing dispersion, 110 are reached when temperature～
Stirring cooling in cold batch mixer is proceeded to when 115 DEG C, hopper is entered when temperature drops to 55 DEG C, it is standby；S2：By the mixed ingredients in S1
It is added in extruder plasticizing, extruding pelletization, it is cooling, standby；
S3：Stand-by pellet in S2 is added into injection moulding in injection machine, Jing pressurize cooling, the demoulding, after pruning packaging PVC is obtained final product
Pipe fitting.
10. preparation method according to claim 9, it is characterised in that extruder described in S2 is conical double screw extruder,
Barrel zone temperature is 150～180 DEG C, and the forming temperature of injection machine described in S3 is 165～185 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610962245.1A CN106566121A (en) | 2016-11-04 | 2016-11-04 | Novel modified polyvinyl chloride pipe fitting and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610962245.1A CN106566121A (en) | 2016-11-04 | 2016-11-04 | Novel modified polyvinyl chloride pipe fitting and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106566121A true CN106566121A (en) | 2017-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610962245.1A Pending CN106566121A (en) | 2016-11-04 | 2016-11-04 | Novel modified polyvinyl chloride pipe fitting and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384141A (en) * | 2018-02-23 | 2018-08-10 | 海南联塑科技实业有限公司 | A kind of heat-resistant polyvinyl chloride pipe fitting and preparation method thereof |
| CN114058050A (en) * | 2021-12-03 | 2022-02-18 | 大连环球矿产股份有限公司 | Method for applying inorganic mineral material wollastonite to PVC sheet instead of MBS resin |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02110155A (en) * | 1988-10-19 | 1990-04-23 | Nippon Oil & Fats Co Ltd | Heat-resistant vinyl chloride resin composition |
| CN102391591A (en) * | 2011-07-28 | 2012-03-28 | 联塑市政管道（河北）有限公司 | Polrvinyl chloride electric power protecting sleeve and processing method thereof |
| CN102863711A (en) * | 2011-07-06 | 2013-01-09 | 中国石油化工股份有限公司 | Heat-resisting PVC high impact-resisting tubular product and preparation method thereof |
| CN104861367A (en) * | 2014-12-29 | 2015-08-26 | 殷培花 | High-strength environmentally friendly polyvinyl chloride tube and production method thereof |
-
2016
- 2016-11-04 CN CN201610962245.1A patent/CN106566121A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02110155A (en) * | 1988-10-19 | 1990-04-23 | Nippon Oil & Fats Co Ltd | Heat-resistant vinyl chloride resin composition |
| CN102863711A (en) * | 2011-07-06 | 2013-01-09 | 中国石油化工股份有限公司 | Heat-resisting PVC high impact-resisting tubular product and preparation method thereof |
| CN102391591A (en) * | 2011-07-28 | 2012-03-28 | 联塑市政管道（河北）有限公司 | Polrvinyl chloride electric power protecting sleeve and processing method thereof |
| CN104861367A (en) * | 2014-12-29 | 2015-08-26 | 殷培花 | High-strength environmentally friendly polyvinyl chloride tube and production method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384141A (en) * | 2018-02-23 | 2018-08-10 | 海南联塑科技实业有限公司 | A kind of heat-resistant polyvinyl chloride pipe fitting and preparation method thereof |
| CN108384141B (en) * | 2018-02-23 | 2020-07-07 | 海南联塑科技实业有限公司 | Heat-resistant polyvinyl chloride pipe fitting and preparation method thereof |
| CN114058050A (en) * | 2021-12-03 | 2022-02-18 | 大连环球矿产股份有限公司 | Method for applying inorganic mineral material wollastonite to PVC sheet instead of MBS resin |
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