CN109467798A - Polypropylene thermal insulation material and preparation method thereof - Google Patents
Polypropylene thermal insulation material and preparation method thereof Download PDFInfo
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- CN109467798A CN109467798A CN201811184363.XA CN201811184363A CN109467798A CN 109467798 A CN109467798 A CN 109467798A CN 201811184363 A CN201811184363 A CN 201811184363A CN 109467798 A CN109467798 A CN 109467798A
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- hollow glass
- thermal insulation
- insulation material
- glass micropearl
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
Abstract
The invention proposes a kind of polypropylene thermal insulation materials and preparation method thereof, including following components: 65~75 parts of acrylic resin, modified 25~35 parts of hollow glass micropearl, 1~3 part of titanate coupling agent, 6~12 parts of toughener, 0.2~0.8 part of antioxidant and 0.6~1.8 part of lubricant；Modified hollow glass micropearl is mainly prepared by hollow glass micropearl, maleic anhydride, acrylic acid and benzoyl peroxide.Preparation method: 1) first modified glass microspheres, titanate coupling agent, the acrylic resin that accounts for gross mass 30~40% and the toughener that accounts for gross mass 10~20% are uniformly mixed, go out machine with mixer and prepares master batch；2) master batch that step 1) obtains is mixed with antioxidant, lubricant, remaining toughener and remaining acrylic resin, through dispersing in double screw extruder in 210~240 DEG C of melting mixings, extruding pelletization.The thermal coefficient of the thermal insulation material is low, good heat insulating.
Description
Technical field
The invention belongs to plastics arts, and in particular to a kind of polypropylene thermal insulation material and preparation method thereof.
Background technique
Polypropylene enters each corner of daily life as a kind of general-purpose plastics, by the modified polypropylene of miberal powder
Material relies on its good rigidity, lower shrinking percentage and deformation, has obtained extensive utilization on household appliances.It is currently used
More methods is that elastomeric material is added in polypropylene matrix to improve impact strength, by introducing 10-40% talcum powder, cloud
The fillers such as female powder, wollastonite, kaolin improve tensile strength, bending strength and bending modulus, by introducing damage resistant agent such as
Silicone master batch, amide containing resinoid improve scratch resistant performance.
Currently, metal delivery tubes are widely used in oil exploitation, oil transportation, natural gas transportation, city heat supply, city
The every field such as water supply.Due to the difference of pumped (conveying) medium and transport environment, people need to take metallic conduit different protections
Measure, it is such as heat-resisting；Anticorrosion；Scratch resistance etc..In addition, during conveying high-temperature medium, it can also require that reducing entire defeated
The thermal coefficient for sending pipeline guarantees the temperature of pumped (conveying) medium.For example, to will lead to oil product viscous for the reduction of oil product temperature in oil pipeline
Degree increases to reduce transfer efficiency, more seriously, the wax contained in oil product is made to be precipitated and block conveyance conduit sometimes.And
In the transmission process of hot water and steam, if not reducing the thermal coefficient of metal delivery tubes, the consumption of the energy can be increased, is increased
Unnecessary expenditures.Therefore, in order to improve the effect that metal tube conveys, people can take a variety of safeguard measures.
Currently, the thermal insulation material that metal delivery tubes use has waterglass perlite shell, glass wool rigid section, polyurethane foam
Plastics etc..Since Plastic thermal insulation material has many advantages, such as that density is low, easy to process is increasingly being applied to middle low temperature (no
Higher than 140 DEG C) heat preservation of conveyance conduit.Chinese patent CN103819644A discloses a kind of " pipe insulation material of good fluidity
Material and preparation method thereof ", the pipe insulation material is polyurethane foam plastics, though thermal insulation property is excellent, its intensity mistake
Low, water resistance has deficiency, is not suitable for the heat preservation of buried pipeline and submarine pipeline；In addition, preparing polyurethane foam plastics guarantor
Warm layer needs prefabricated mould, causes engineering construction efficiency relatively low.
Summary of the invention
The present invention proposes a kind of polypropylene thermal insulation material, and the thermal coefficient of the thermal insulation material is low, good heat insulating.
The technical scheme of the present invention is realized as follows:
A kind of polypropylene thermal insulation material, according to the number of parts by weight, including following components:
65~75 parts of acrylic resin, modified 25~35 parts of hollow glass micropearl, 1~3 part of titanate coupling agent, toughener
6~12 parts, 0.2~0.8 part of antioxidant and 0.6~1.8 part of lubricant；The modified hollow glass micropearl is mainly by hollow glass
Microballon, maleic anhydride, acrylic acid and benzoyl peroxide are prepared.
Preferably, the modified glass microspheres preparation method the following steps are included:
1) hollow glass micropearl is dissolved in saturation ammonia spirit, at ultrasonic agitation 3~6 hours, by hollow glass after stirring
Glass microballon filters out, and cleans drying；
2) hollow glass micropearl after drying is put into the aqueous solution of acrylic acid, adds maleic anhydride and peroxidating
Benzoyl is stirred to react 4~8 hours, is filtered, and drying can be obtained modified glass microspheres.
Preferably, the partial size of the hollow glass micropearl is 40 μm~100 μm.
Preferably, the mass ratio of the hollow glass micropearl and the acrylic acid is 10~16:1, the hollow glass
The mass ratio of microballon and the maleic anhydride is 23~28:1, the mass ratio of the acrylic acid and the benzoyl peroxide
For 6~12:1.
Preferably, the acrylic resin is one or both of copolymer polypropylene or homopolypropylene.
Preferably, the titanate coupling agent is (the dioctyl phosphoric acid acyloxy) titanate esters of isopropyl three or three different hard esters
Sour isopropyl titanate.
Preferably, the toughener is ethylene-octene copolymer, ethylene-alpha-olefin polymers or Ethylene-Propylene-Diene
One of copolymer or more than one.
Preferably, the antioxidant is selected from four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, Asia
One of tricresyl phosphate (2,4- di-tert-butyl-phenyl) ester and the double octadecyls of thio-2 acid are a variety of.
It is a further object to provide a kind of preparation methods of polypropylene thermal insulation material, comprising the following steps:
1) first by modified glass microspheres, titanate coupling agent, the acrylic resin and Zhan Zongzhi for accounting for gross mass 30~40%
The toughener of amount 10~20% is uniformly mixed, and is gone out machine with mixer and is prepared master batch；
2) master batch that step 1) obtains is mixed with antioxidant, lubricant, remaining toughener and remaining acrylic resin, is passed through
Disperse in double screw extruder in 210~240 DEG C of melting mixings, extruding pelletization.
Beneficial effects of the present invention:
The present invention is mainly prepared by hollow glass micropearl, maleic anhydride, acrylic acid and benzoyl peroxide by selecting
To modified hollow glass micropearl, after ultrasonic treatment of the modification hollow glass micropearl by saturation ammonium hydroxide, then with maleic anhydride, third
Olefin(e) acid and benzoyl peroxide carry out surface modification treatment, substantially increase the compatible of hollow glass micropearl and acrylic resin
Property, to improve the filling rate of hollow glass micropearl, gather so that the polypropylene thermal insulation material being prepared is more traditional
The thermal coefficient of urethane material is lower, while having good water resistance.
Specific embodiment
Embodiment 1
The preparation methods of modified glass microspheres the following steps are included:
1) hollow glass micropearl is dissolved in saturation ammonia spirit, it is after stirring that hollow glass is micro- at ultrasonic agitation 3 hours
Pearl filters out, and cleans drying；The partial size of hollow glass micropearl is 40 μm~100 μm.
2) hollow glass micropearl after drying is put into the aqueous solution of acrylic acid, adds maleic anhydride and peroxidating
Benzoyl is stirred to react 8 hours, is filtered, and drying can be obtained modified glass microspheres.The matter of hollow glass micropearl and acrylic acid
The ratio between amount is 10:1, and the mass ratio of hollow glass micropearl and maleic anhydride is 28:1, the matter of acrylic acid and benzoyl peroxide
The ratio between amount is 6:1.
Embodiment 2
The preparation methods of modified glass microspheres the following steps are included:
1) hollow glass micropearl is dissolved in saturation ammonia spirit, it is after stirring that hollow glass is micro- at ultrasonic agitation 6 hours
Pearl filters out, and cleans drying；The partial size of hollow glass micropearl is 40 μm~100 μm.
2) hollow glass micropearl after drying is put into the aqueous solution of acrylic acid, adds maleic anhydride and peroxidating
Benzoyl is stirred to react 4 hours, is filtered, and drying can be obtained modified glass microspheres.
The mass ratio of hollow glass micropearl and the acrylic acid is 16:1, the hollow glass micropearl and the maleic acid
The mass ratio of acid anhydride is 23:1, and the mass ratio of the acrylic acid and the benzoyl peroxide is 12:1.
Embodiment 3
A kind of polypropylene thermal insulation material, according to the number of parts by weight, including following components:
70 parts of acrylic resin, 31 parts of the modification hollow glass micropearl of embodiment 1, (the dioctyl phosphoric acid acyl-oxygen of isopropyl three
Base) 2 parts of titanate esters, 8 parts of ethylene-octene copolymer, 0.6 part of phosphorous acid three (2,4- di-tert-butyl-phenyl) ester and polyethylene wax
1.2 part.
Preparation method:
1) first that the modification hollow glass micropearl of embodiment 1, isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters, Zhan is total
The copolymer polypropylene of quality 35% and the ethylene-octene copolymer for accounting for gross mass 15% are uniformly mixed, and go out machine preparation with mixer
Master batch；
2) master batch for obtaining step 1) and phosphorous acid three (2,4- di-tert-butyl-phenyl) ester, polyethylene wax, remaining ethylene-
Octene copolymer and remaining copolymer polypropylene mixing are squeezed out through dispersing in double screw extruder in 210~240 DEG C of melting mixings
It is granulated.
Embodiment 4
A kind of polypropylene thermal insulation material, according to the number of parts by weight, including following components:
65 parts of acrylic resin, 25 parts of the modification hollow glass micropearl of embodiment 2,1 part of three iso stearate isopropyl titanate,
12 parts of ethylene-alpha-olefin polymers, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] 0.2 part of pentaerythritol esters and poly-
0.6 part of propylene wax.
Preparation method:
1) first by the modification hollow glass micropearl of embodiment 2, three iso stearate isopropyl titanates, account for the equal of gross mass 30%
Poly- polypropylene and the ethylene-alpha-olefin polymers for accounting for gross mass 20% are uniformly mixed, and are gone out machine with mixer and are prepared master batch；
The master batch for 2) obtaining step 1) and four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters,
Polypropylene wax, remaining ethylene-alpha-olefin polymers and remaining homopolypropylene rouge mixing, through in double screw extruder 210~
240 DEG C of melting mixing dispersions, extruding pelletization.
Embodiment 5
A kind of polypropylene thermal insulation material, according to the number of parts by weight, including following components:
35 parts of modification hollow glass micropearl, the isopropyl three of 40 parts of copolymer polypropylene, 35 parts of homopolypropylene, embodiment 1
0.8 part of the double octadecyl of (dioctyl phosphoric acid acyloxy) 3 parts of titanate esters, 6 parts of ethylene-octene copolymer, thio-2 acid and poly-
1.8 parts of ethylene waxes.
Preparation method:
1) first that the modification hollow glass micropearl of embodiment 1, isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters, Zhan is total
The acrylic resin of quality 40% and the ethylene-octene copolymer for accounting for gross mass 10% are uniformly mixed, and go out machine preparation with mixer
Master batch；
2) master batch for obtaining step 1) and the double octadecyls of thio-2 acid, polyethylene wax, remaining ethylene-octene are copolymerized
Object and remaining acrylic resin mixing, through dispersing in double screw extruder in 210~240 DEG C of melting mixings, extruding pelletization, i.e.,
It can.
Comparative example 1
A kind of polypropylene thermal insulation material, according to the number of parts by weight, including following components:
70 parts of acrylic resin, 31 parts of hollow glass micropearl, isopropyl three (dioctyl phosphoric acid acyloxy) 2 parts of titanate esters,
8 parts of ethylene-octene copolymer, 0.6 part and 1.2 parts of polyethylene wax of phosphorous acid three (2,4- di-tert-butyl-phenyl) ester.
It is substantially the same manner as Example 1, the difference is that each component and content.
Test example
The polypropylene thermal insulation material of embodiment 3-5, comparative example 1 is tested for the property, tensile strength testing standard foundation
ISO 527-2, test condition: 23 DEG C of temperature, rate of extension 50mm/min；Bending strength testing standard is according to ISO 178, test
Condition: 23 DEG C of temperature, rate 2mm/min, span 64mm are bent；Notch impact strength testing standard is surveyed according to ISO 179-1eA
Strip part: 23 DEG C of temperature；Thermal coefficient, ASTMC518,23 DEG C.Measurement result is shown in Table 1.
Table 1
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of polypropylene thermal insulation material, which is characterized in that according to the number of parts by weight, including following components:
65~75 parts of acrylic resin, modified 25~35 parts of hollow glass micropearl, 1~3 part of titanate coupling agent, toughener 6~
12 parts, 0.2~0.8 part of antioxidant and 0.6~1.8 part of lubricant；The modified hollow glass micropearl is mainly micro- by hollow glass
Pearl, maleic anhydride, acrylic acid and benzoyl peroxide are prepared.
2. polypropylene thermal insulation material according to claim 1, which is characterized in that the preparation method of the modified glass microspheres
The following steps are included:
1) hollow glass micropearl is dissolved in saturation ammonia spirit, it is after stirring that hollow glass is micro- at ultrasonic agitation 3~6 hours
Pearl filters out, and cleans drying；
2) hollow glass micropearl after drying is put into the aqueous solution of acrylic acid, adds maleic anhydride and benzoyl peroxide first
Acyl is stirred to react 4~8 hours, is filtered, and drying can be obtained modified glass microspheres.
3. polypropylene thermal insulation material according to claim 2, which is characterized in that the partial size of the hollow glass micropearl is 40
μm~100 μm.
4. polypropylene thermal insulation material according to claim 2, which is characterized in that the hollow glass micropearl and the propylene
The mass ratio of acid is 10~16:1, and the mass ratio of the hollow glass micropearl and the maleic anhydride is 23~28:1, institute
The mass ratio for stating acrylic acid and the benzoyl peroxide is 6~12:1.
5. polypropylene thermal insulation material according to claim 1, which is characterized in that the acrylic resin is copolymer polypropylene
Or one or both of homopolypropylene.
6. polypropylene thermal insulation material according to claim 1, which is characterized in that the titanate coupling agent is isopropyl three
(dioctyl phosphoric acid acyloxy) titanate esters or three iso stearate isopropyl titanates.
7. polypropylene thermal insulation material according to claim 1, which is characterized in that the toughener is ethylene-octene copolymerization
One of object, ethylene-alpha-olefin polymers or ethylene-propylene-diene copolymer or more than one.
8. polypropylene thermal insulation material according to claim 1, which is characterized in that the antioxidant is selected from four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, (2, the 4- di-tert-butyl-phenyl) ester of phosphorous acid three and thio-2 acid pair
One of octadecyl is a variety of.
9. the preparation method of the polypropylene thermal insulation material as described in claim 1 to 8 any one, which is characterized in that including with
Lower step:
1) first by modified glass microspheres, titanate coupling agent, the acrylic resin for accounting for gross mass 30~40% and gross mass 10 is accounted for
~20% toughener is uniformly mixed, and is gone out machine with mixer and is prepared master batch；
2) master batch that step 1) obtains is mixed with antioxidant, lubricant, remaining toughener and remaining acrylic resin, through double spiral shells
Disperse in bar extruder in 210~240 DEG C of melting mixings, extruding pelletization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184363.XA CN109467798A (en) | 2018-10-11 | 2018-10-11 | Polypropylene thermal insulation material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184363.XA CN109467798A (en) | 2018-10-11 | 2018-10-11 | Polypropylene thermal insulation material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN109467798A true CN109467798A (en) | 2019-03-15 |
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| CN201811184363.XA Withdrawn CN109467798A (en) | 2018-10-11 | 2018-10-11 | Polypropylene thermal insulation material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480527A (en) * | 2020-10-19 | 2021-03-12 | 镇江星扬电气管业有限公司 | High-temperature-resistant anticorrosive plate and preparation method thereof |
| CN112694676A (en) * | 2020-12-25 | 2021-04-23 | 海信（广东）空调有限公司 | Composite material for exhaust pipe of mobile air conditioner, exhaust pipe and mobile air conditioner |
| CN114181411A (en) * | 2021-12-10 | 2022-03-15 | 成都德斐生物科技有限公司 | Hydrogel material with high cold/heat insulation effect |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480527A (en) * | 2020-10-19 | 2021-03-12 | 镇江星扬电气管业有限公司 | High-temperature-resistant anticorrosive plate and preparation method thereof |
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