CN107163454A - The PVC and preparation method of a kind of heat oxygen aging resistance - Google Patents
The PVC and preparation method of a kind of heat oxygen aging resistance Download PDFInfo
- Publication number
- CN107163454A CN107163454A CN201710596268.XA CN201710596268A CN107163454A CN 107163454 A CN107163454 A CN 107163454A CN 201710596268 A CN201710596268 A CN 201710596268A CN 107163454 A CN107163454 A CN 107163454A
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- Prior art keywords
- barium sulfate
- pvc
- nano
- odium stearate
- modified nano
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- 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
-
- 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
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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)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of PVC of heat oxygen aging resistance and preparation method, the present invention is using modified nano-barium sulfate as antiager, nano barium sulfate is first modified through odium stearate, odium stearate is coated on the surface of nano barium sulfate, so that the dispersiveness of nano barium sulfate in the base is improved, while also improving the compatibility of nano barium sulfate and PVC matrix, the PVC crystallinity improved, so that matrix material is more closely knit, oxygen diffusion velocity is reduced, the thermo-oxidative stability of material is improved；Rare-earth coupling agent graft modification is used again, rare-earth coupling agent can not only play coupled action, also because of the unique outer shell structure of rare earth element, stronger integument can be formed on nano barium sulfate surface, formed by shell of rare earth compounding, nano barium sulfate is the inorganic rigid particle of core, there is stronger toughening modifying effect to PVC.
Description
Technical field
The present invention relates to PVC production field, and in particular to the PVC and preparation method of a kind of heat oxygen aging resistance.
Background technology
PVC in daily life it is striking can and, have that sufficient raw, price are low, corrosion resistance is strong because of it, strong
Spend the features such as high, the good, processing characteristics of rigidity is excellent, electrical insulating property is strong and be widely used in feedwater, construction drainage, blowdown, change
The technical fields such as work.
But, PVC has aging phenomenon as other high polymer materials.The reason for aging occurs for polymer
Mainly there are two aspects：One side is internal cause, i.e. the structural property of polymer in itself such as unsaturated double-bond, side chain, hydrogen peroxide
Group etc.；Another aspect is external cause, i.e. extraneous environmental factor, mainly light, heat, oxygen etc..Internal and external factor interaction, alternating
The complex process of influence makes the molecular structure of polymeric material change, and relative molecular mass declines or produced crosslinking, so that
Decline material property and even result in destruction, so that can not use.And for the PVC material applied to fishery, problem of aging is outstanding
Its is serious.Because in aquaculture, the net cage using PVC as frame material is most widely used in cage culture.
Because net cage is placed on offshore sea waters, for a long time in the environment of hot and humid and ultraviolet light, its ageing-resistant property
The performance and service life of product can be directly influenced, therefore solves PVC material and is seemed not ageing-resistant the problem of to pass
It is important.And one important channel of PVC material ageing-resistant performance is improved by nano-particle.
The content of the invention
It is an object of the invention to provide a kind of PVC of heat oxygen aging resistance and preparation method, to overcome prior art
Deficiency.
The object of the present invention is achieved like this：
A kind of PVC of heat oxygen aging resistance, it is characterised in that by fully dried modified nano-barium sulfate in proportion with
After PVC is mixed with two-roll mill, it is added in double screw extruder that extrusion molding obtains tubing after melt blending, wherein described
Modified nano-barium sulfate account for PVC weight/mass percentage composition be 3-4%.
Described modified nano-barium sulfate is first modified through odium stearate, then uses rare-earth coupling agent graft modification, specific to prepare
Method comprises the following steps：
（1）By nano barium sulfate, absolute ethyl alcohol, zirconium ball according to mass volume ratio be 1: 4: 20 put into high-speed mixer with
3000 r/min speed is sanded 1-2 hours, is filtered to remove zirconium ball, obtains mixed liquor；
（2）Odium stearate is dissolved in absolute ethyl alcohol to stir to whole and dissolves to obtain odium stearate alcoholic solution；
（3）By step（1）Mixed liquor be put into high mixer, be warming up to 70-80 DEG C, step be added dropwise（2）Odium stearate
Alcoholic solution, is stirred 1-2 hours with 800r/min speed, is spray-dried to obtain odium stearate modified nano-barium sulfate；
（4）Odium stearate modified nano-barium sulfate obtained above is placed in high-speed kneading machine, it is 600r/min to control rotating speed
20-30min is stirred, treats that temperature rises to 100-110 DEG C, keeping temperature is constant, rare-earth coupling agent is added, with 800r/min speed
10-15min is stirred, room temperature is cooled to, then through air-flow crushing, discharging.
The addition of described odium stearate is the 1-2% of nano barium sulfate quality.
The addition of described rare-earth coupling agent is the 8-10% of nano barium sulfate quality.
The preparation method of the PVC of described a kind of heat oxygen aging resistance, it is characterised in that comprise the following steps：
（1）Modified nano-barium sulfate is put into 110-120 DEG C of baking oven and dried 10-12 hours；
（2）PVC is added in two-roll mill and plastifies 2min, is added through above-mentioned fully dried modified nano-barium sulfate
Continue to knead 10 min, wherein each area's temperature of preliminary roller be followed successively by 140,145,140 DEG C, each area's temperature of back roller is 130 DEG C, preliminary roller
Rotating speed is 10 r/min, and back roller rotating speed is 5 r/min；
（3）By step（2）Reaction material puts into double screw extruder the extrusion molding after melt blending and obtains tubing, and twin-screw is squeezed
Go out to machine temperature range for 170-180 DEG C, screw speed is 600-650rpm.
The present invention has following beneficial effect：The present invention is first by nano barium sulfate using modified nano-barium sulfate as antiager
It is modified through odium stearate, odium stearate is coated on the surface of nano barium sulfate, so as to improve point of nano barium sulfate in the base
Property is dissipated, while the compatibility of nano barium sulfate and PVC matrix is also improved, the PVC crystallinity improved, so that matrix material
It is more closely knit, oxygen diffusion velocity is reduced, the thermo-oxidative stability of material is improved；Rare-earth coupling agent graft modification, rare earth are used again
Coupling agent can not only play coupled action, can be in nano barium sulfate surface shape also because of the unique outer shell structure of rare earth element
Into stronger integument, formed by shell of rare earth compounding, nano barium sulfate for core inorganic rigid particle, to PVC
There is stronger toughening modifying effect.
Embodiment
A kind of PVC of heat oxygen aging resistance, it is characterised in that by fully dried modified nano-barium sulfate in proportion
After being mixed with PVC with two-roll mill, it is added in double screw extruder the extrusion molding after melt blending and obtains tubing, wherein institute
The weight/mass percentage composition that the modified nano-barium sulfate stated accounts for PVC is 3-4%.
Described modified nano-barium sulfate is first modified through odium stearate, then uses rare-earth coupling agent graft modification, specific to prepare
Method comprises the following steps：
（1）By nano barium sulfate, absolute ethyl alcohol, zirconium ball according to mass volume ratio be 1: 4: 20 put into high-speed mixer with
3000 r/min speed is sanded 1-2 hours, is filtered to remove zirconium ball, obtains mixed liquor；
（2）Odium stearate is dissolved in absolute ethyl alcohol to stir to whole and dissolves to obtain odium stearate alcoholic solution；
（3）By step（1）Mixed liquor be put into high mixer, be warming up to 70-80 DEG C, step be added dropwise（2）Odium stearate
Alcoholic solution, is stirred 1-2 hours with 800r/min speed, is spray-dried to obtain odium stearate modified nano-barium sulfate；
（4）Odium stearate modified nano-barium sulfate obtained above is placed in high-speed kneading machine, it is 600r/min to control rotating speed
20-30min is stirred, treats that temperature rises to 100-110 DEG C, keeping temperature is constant, rare-earth coupling agent is added, with 800r/min speed
10-15min is stirred, room temperature is cooled to, then through air-flow crushing, discharging.
The addition of described odium stearate is the 1-2% of nano barium sulfate quality.
The addition of described rare-earth coupling agent is the 8-10% of nano barium sulfate quality.
The preparation method of the PVC of described a kind of heat oxygen aging resistance, it is characterised in that comprise the following steps：
（1）Modified nano-barium sulfate is put into 110-120 DEG C of baking oven and dried 10-12 hours；
（2）PVC is added in two-roll mill and plastifies 2min, is added through above-mentioned fully dried modified nano-barium sulfate
Continue to knead 10 min, wherein each area's temperature of preliminary roller be followed successively by 140,145,140 DEG C, each area's temperature of back roller is 130 DEG C, preliminary roller
Rotating speed is 10 r/min, and back roller rotating speed is 5 r/min；
（3）By step（2）Reaction material puts into double screw extruder the extrusion molding after melt blending and obtains tubing, and twin-screw is squeezed
Go out to machine temperature range for 170-180 DEG C, screw speed is 600-650rpm.
Claims (5)
1. a kind of PVC of heat oxygen aging resistance, it is characterised in that by fully dried modified nano-barium sulfate in proportion with
After PVC is mixed with two-roll mill, it is added in double screw extruder that extrusion molding obtains tubing after melt blending, wherein described
Modified nano-barium sulfate account for PVC weight/mass percentage composition be 3-4%.
2. a kind of PVC of heat oxygen aging resistance according to claim 1, it is characterised in that described modified Nano sulphur
Sour barium is first modified through odium stearate, then uses rare-earth coupling agent graft modification, and specific preparation method comprises the following steps：
（1）By nano barium sulfate, absolute ethyl alcohol, zirconium ball according to mass volume ratio be 1: 4: 20 put into high-speed mixer with
3000 r/min speed is sanded 1-2 hours, is filtered to remove zirconium ball, obtains mixed liquor；
（2）Odium stearate is dissolved in absolute ethyl alcohol to stir to whole and dissolves to obtain odium stearate alcoholic solution；
（3）By step（1）Mixed liquor be put into high mixer, be warming up to 70-80 DEG C, step be added dropwise（2）Odium stearate
Alcoholic solution, is stirred 1-2 hours with 800r/min speed, is spray-dried to obtain odium stearate modified nano-barium sulfate；
（4）Odium stearate modified nano-barium sulfate obtained above is placed in high-speed kneading machine, it is 600r/min to control rotating speed
20-30min is stirred, treats that temperature rises to 100-110 DEG C, keeping temperature is constant, rare-earth coupling agent is added, with 800r/min speed
10-15min is stirred, room temperature is cooled to, then through air-flow crushing, discharging.
3. the preparation method of modified nano-barium sulfate according to claim 2, it is characterised in that described odium stearate
Addition is the 1-2% of nano barium sulfate quality.
4. the preparation method of modified nano-barium sulfate according to claim 2, it is characterised in that described rare-earth coupling agent
Addition be nano barium sulfate quality 8-10%.
5. a kind of preparation method of the PVC of heat oxygen aging resistance according to claim 1, it is characterised in that including with
Lower step：
（1）Modified nano-barium sulfate is put into 110-120 DEG C of baking oven and dried 10-12 hours；
（2）PVC is added in two-roll mill and plastifies 2min, is added through above-mentioned fully dried modified nano-barium sulfate
Continue to knead 10 min, wherein each area's temperature of preliminary roller be followed successively by 140,145,140 DEG C, each area's temperature of back roller is 130 DEG C, preliminary roller
Rotating speed is 10 r/min, and back roller rotating speed is 5 r/min；
（3）By step（2）Reaction material puts into double screw extruder the extrusion molding after melt blending and obtains tubing, and twin-screw is squeezed
Go out to machine temperature range for 170-180 DEG C, screw speed is 600-650rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710596268.XA CN107163454A (en) | 2017-07-20 | 2017-07-20 | The PVC and preparation method of a kind of heat oxygen aging resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710596268.XA CN107163454A (en) | 2017-07-20 | 2017-07-20 | The PVC and preparation method of a kind of heat oxygen aging resistance |
Publications (1)
| Publication Number | Publication Date |
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| CN107163454A true CN107163454A (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710596268.XA Pending CN107163454A (en) | 2017-07-20 | 2017-07-20 | The PVC and preparation method of a kind of heat oxygen aging resistance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577711A (en) * | 2019-10-14 | 2019-12-17 | 上海瑞皇管业科技股份有限公司 | Polyvinyl chloride composite pipe with improved toughness and impact resistance and preparation method thereof |
| CN110684302A (en) * | 2019-10-14 | 2020-01-14 | 上海瑞皇管业科技股份有限公司 | Polyvinyl chloride composite pipe with improved thermal stability and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952357A (en) * | 2012-11-29 | 2013-03-06 | 江苏亨通线缆科技有限公司 | Waterproof and flame-retarded PVC (polyvinyl chloride) cable material for data cable and preparation method thereof |
| CN104629217A (en) * | 2015-02-14 | 2015-05-20 | 青岛科技大学 | Sound insulating material and preparation method thereof |
| CN105153590A (en) * | 2012-12-04 | 2015-12-16 | 苏州亨利通信材料有限公司 | High-water-resistance compact compound PVC cable material |
| CN106751153A (en) * | 2016-11-30 | 2017-05-31 | 安庆市月岭塑业有限公司 | A kind of antibacterial green fibre reinforced PVC material and preparation method thereof |
-
2017
- 2017-07-20 CN CN201710596268.XA patent/CN107163454A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952357A (en) * | 2012-11-29 | 2013-03-06 | 江苏亨通线缆科技有限公司 | Waterproof and flame-retarded PVC (polyvinyl chloride) cable material for data cable and preparation method thereof |
| CN105153590A (en) * | 2012-12-04 | 2015-12-16 | 苏州亨利通信材料有限公司 | High-water-resistance compact compound PVC cable material |
| CN104629217A (en) * | 2015-02-14 | 2015-05-20 | 青岛科技大学 | Sound insulating material and preparation method thereof |
| CN106751153A (en) * | 2016-11-30 | 2017-05-31 | 安庆市月岭塑业有限公司 | A kind of antibacterial green fibre reinforced PVC material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王珏 等: "《塑料改性实用技术与应用》", 30 June 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577711A (en) * | 2019-10-14 | 2019-12-17 | 上海瑞皇管业科技股份有限公司 | Polyvinyl chloride composite pipe with improved toughness and impact resistance and preparation method thereof |
| CN110684302A (en) * | 2019-10-14 | 2020-01-14 | 上海瑞皇管业科技股份有限公司 | Polyvinyl chloride composite pipe with improved thermal stability and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |