CN104927157A - Silica aerogel corrugated pipe - Google Patents
Silica aerogel corrugated pipe Download PDFInfo
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- CN104927157A CN104927157A CN201510324442.6A CN201510324442A CN104927157A CN 104927157 A CN104927157 A CN 104927157A CN 201510324442 A CN201510324442 A CN 201510324442A CN 104927157 A CN104927157 A CN 104927157A
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- calcium carbonate
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- 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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a silica aerogel corrugated pipe. The silica aerogel corrugated pipe comprises, by weight, 10-12 parts of maleic acid dibutyl ester, 0.3-0.6 part of 4-dimethylaminopyridine, 540-600 parts of high-density polyethylene, 3-4 parts of castor oil, 100-134 parts of N,N-dimethylformamide, 31-40 parts of calcium carbonate, 46-50 parts of n-methylpyrrolidone, 10-14 parts of ethylenediamine, 1-2 parts of dicyclohexylcarbodiimide, 2-3 parts of pentaerythritol, 1-1.3 parts of polybenzimidazole, 6-10 parts of hexamethylphosphoramide and 20-30 parts of micron-sized silica aerogel. According to the silica aerogel corrugated pipe, amidogen in the ethylenediamine is used for being reacted with the calcium carbonate to achieve amidation, and the ethylenediamine is successfully grafted to the calcium carbonate; the amino end group in the amidated calcium carbonate is used for being reacted with the anhydride in the matrix of polyethylene to achieve hydrogen-bond interaction or an anhydride reaction, and the dispersity and the interface interaction of the calcium carbonate in the matrix are promoted; meanwhile, a matrix anhydride molecular chain comprises a large amount of carboxyl, hydroxyl, carbonyl and other polar groups which can form hydrogen bonds or coordinate bonds interacting with calcium carbonate particles, the bonding effect of an interface can be improved, and accordingly the mechanical strength and the heat stability of a finished base material are improved.
Description
Technical field
The present invention relates generally to a kind of tubing, particularly relates to a kind of silicon containing gas gel corrugated tube.
Background technology
Polyethylene is a kind of cheap, of many uses, thermoplastics of being easy to machine-shaping.But, poly mechanical property, heat-resistant stability are not enough and nonpolarly limit its application in some field, and by polyethylene and some filler compounds, its mechanical property and thermotolerance etc. can be improved, but because of its be easy to reunite and low with the bonding force of polymer interface, dispersing uniformity is poor, needs to improve addition and could obtain the good matrix material of performance; Therefore in order to improve the interface binding power of filler and polymeric matrix, improving the dispersiveness of filler, how filler being effectively combined with polyethylene the emphasis just becoming research.
Summary of the invention
The object of the invention is just to provide a kind of silicon containing gas gel corrugated tube.
The present invention is achieved by the following technical solutions:
A kind of silicon containing gas gel corrugated tube, it is made up of the raw material of following weight parts:
Dibutyl maleinate 10-12,4-dimethylaminopyridine 0.3-0.6, high density polyethylene(HDPE) 540-600, Viscotrol C 3-4, DMF 100-134, calcium carbonate 31-40, n-methyl-2-pyrrolidone 46-50, quadrol 10-14, dicyclohexylcarbodiimide 1-2, tetramethylolmethane 2-3, polybenzimidazole 1-1.3, HMPA 6-10, white rouge aerogel 20-30.
A preparation method for silicon containing gas gel corrugated tube, comprises the following steps:
(1) by above-mentioned N, dinethylformamide, quadrol, dicyclohexylcarbodiimide, 4-dimethylaminopyridine mix, stir, add calcium carbonate, supersound process 26-30 minute under 300-350w power, send in the water-bath of 50-60 DEG C, insulated and stirred 7-8 hour, vacuum filtration, washs successively with water and ethanol, obtains amidation calcium carbonate;
(2) the amidation calcium carbonate obtained is joined in n-methyl-2-pyrrolidone, supersound process 30-35 minute under 200-270w power, send in the oil bath of 180-190 DEG C, insulated and stirred 10-13 hour, vacuum filtration, fully washs with ethanol, fine powder is worn in oven dry, obtains amidation Paris white;
(3) by tetramethylolmethane, dibutyl maleinate mixing, insulated and stirred 10-19 minute at 70-80 DEG C, is cooled to normal temperature, obtains alcohol ester material;
(4) HMPA is joined in 5-7 times of dehydrated alcohol, stir, add polybenzimidazole, raised temperature is 70-80 DEG C, add the 10-20% of above-specified high density polyethylene weight, heated and stirred 40-50 minute in the oil bath of 130-135 DEG C, obtains pre-treatment polyethylene;
(5) Viscotrol C, maleic anhydride are mixed the oil bath being placed in 120-130 DEG C, insulated and stirred 3-5 hour, obtains matrix acid anhydrides;
(6) alcohol ester material, pre-treatment polyethylene are mixed with white rouge aerogel, stirring at normal temperature 1-2 hour, vacuum filtration, dry, mix with matrix acid anhydrides, insulated and stirred 20-30 minute at 60-70 DEG C, obtain matrix polyethylene acid anhydrides;
(7) by matrix polyethylene acid anhydrides, the mixing of amidation Paris white, insulated and stirred 2-3 hour at 125-135 DEG C, vacuum filtration, washs successively with water and ethanol, microwave drying;
(8) dried feed obtained above is mixed with each raw material of residue, stir at 120-150 DEG C of temperature, automatically cool after stirring, after vibratory screening apparatus, automatic charging, is extruded through High Temperature High Pressure by twin screw extruder, after product pulls out by forming machine, by cutting machine fixed length cutting, send into pipe-expanding machine, packaging warehouse-in after enlarging completes.
Advantage of the present invention is:
The present invention utilizes amino in quadrol and calcium carbonate generation amidate action, quadrol is successfully grafted on calcium carbonate, acid anhydrides generation hydrogen bond action in the Amino End Group of recycling amidation calcium carbonate and matrix polyethylene or anhydride reaction, promote calcium carbonate dispersiveness in the base and interface interaction, matrix anhydride molecule chain contains a large amount of carboxyls simultaneously, hydroxyl, carbonyl isopolarity group, these groups can and calcium carbonate particles between form interactional hydrogen bond or coordinate bond, be conducive to the anchoring effect increasing interface, thus improve mechanical strength and the thermostability of finished product base material,
Corrugated tube of the present invention adds white rouge aerogel, has effects such as being well incubated thermal insulation, purify air, may be used for heating pipe line, safety and environmental protection.
Embodiment
Embodiment 1
A kind of silicon containing gas gel corrugated tube, it is made up of the raw material of following weight parts (kilogram):
Dibutyl maleinate 12,4-dimethylaminopyridine 0.6, high density polyethylene(HDPE) 600, Viscotrol C 3, DMF 134, calcium carbonate 40, n-methyl-2-pyrrolidone 50, quadrol 14, dicyclohexylcarbodiimide 2, tetramethylolmethane 2, polybenzimidazole 1.3, HMPA 10, white rouge aerogel 30.
A preparation method for silicon containing gas gel corrugated tube, comprises the following steps:
(1) by above-mentioned N, dinethylformamide, quadrol, dicyclohexylcarbodiimide, 4-dimethylaminopyridine mix, stir, add calcium carbonate, supersound process 30 minutes under 350w power, send in the water-bath of 60 DEG C, insulated and stirred 8 hours, vacuum filtration, washs successively with water and ethanol, obtains amidation calcium carbonate;
(2) the amidation calcium carbonate obtained is joined in n-methyl-2-pyrrolidone, supersound process 30 minutes under 270w power, send in the oil bath of 180-190 DEG C, insulated and stirred 13 hours, vacuum filtration, fully washs with ethanol, fine powder is worn in oven dry, obtains amidation Paris white;
(3) by tetramethylolmethane, dibutyl maleinate mixing, at 80 DEG C, insulated and stirred 19 minutes, is cooled to normal temperature, obtains alcohol ester material;
(4) HMPA joined in 7 times of dehydrated alcohols, stir, add polybenzimidazole, raised temperature is 80 DEG C, adds 20% of above-specified high density polyethylene weight, and in the oil bath of 135 DEG C, heated and stirred 40 minutes, obtains pre-treatment polyethylene;
(5) Viscotrol C, maleic anhydride are mixed the oil bath being placed in 130 DEG C, insulated and stirred 3 hours, obtains matrix acid anhydrides;
(6) alcohol ester material, pre-treatment polyethylene are mixed with white rouge aerogel, stirring at normal temperature 1 hour, vacuum filtration, dry, mix with matrix acid anhydrides, insulated and stirred 30 minutes at 70 DEG C, obtains matrix polyethylene acid anhydrides;
(7) by matrix polyethylene acid anhydrides, the mixing of amidation Paris white, insulated and stirred 3 hours at 135 DEG C, vacuum filtration, washs successively with water and ethanol, microwave drying;
(8) dried feed obtained above is mixed with each raw material of residue, stir at 150 DEG C of temperature, automatically cool after stirring, after vibratory screening apparatus, automatic charging, is extruded through High Temperature High Pressure by twin screw extruder, after product pulls out by forming machine, by cutting machine fixed length cutting, send into pipe-expanding machine, packaging warehouse-in after enlarging completes.
Performance test:
Tensile strength: 21.8MPa;
Impact property (TIR) :≤10%;
Ring stiffness (KN/m
2): 13.25;
Ring is flexible: sample is round and smooth, crack-free, two walls without disengagement, without reverse bending;
Baking oven experiment (110 DEG C, 30min): without layering, without cracking, bubble-free.
Claims (2)
1. a silicon containing gas gel corrugated tube, is characterized in that what it was made up of the raw material of following weight parts:
Dibutyl maleinate 10-12,4-dimethylaminopyridine 0.3-0.6, high density polyethylene(HDPE) 540-600, Viscotrol C 3-4, DMF 100-134, calcium carbonate 31-40, n-methyl-2-pyrrolidone 46-50, quadrol 10-14, dicyclohexylcarbodiimide 1-2, tetramethylolmethane 2-3, polybenzimidazole 1-1.3, HMPA 6-10, white rouge aerogel 20-30.
2. a preparation method for silicon containing gas gel corrugated tube as claimed in claim 1, is characterized in that comprising the following steps:
(1) by above-mentioned N, dinethylformamide, quadrol, dicyclohexylcarbodiimide, 4-dimethylaminopyridine mix, stir, add calcium carbonate, supersound process 26-30 minute under 300-350w power, send in the water-bath of 50-60 DEG C, insulated and stirred 7-8 hour, vacuum filtration, washs successively with water and ethanol, obtains amidation calcium carbonate;
(2) the amidation calcium carbonate obtained is joined in n-methyl-2-pyrrolidone, supersound process 30-35 minute under 200-270w power, send in the oil bath of 180-190 DEG C, insulated and stirred 10-13 hour, vacuum filtration, fully washs with ethanol, fine powder is worn in oven dry, obtains amidation Paris white;
(3) by tetramethylolmethane, dibutyl maleinate mixing, insulated and stirred 10-19 minute at 70-80 DEG C, is cooled to normal temperature, obtains alcohol ester material;
(4) HMPA is joined in 5-7 times of dehydrated alcohol, stir, add polybenzimidazole, raised temperature is 70-80 DEG C, add the 10-20% of above-specified high density polyethylene weight, heated and stirred 40-50 minute in the oil bath of 130-135 DEG C, obtains pre-treatment polyethylene;
(5) Viscotrol C, maleic anhydride are mixed the oil bath being placed in 120-130 DEG C, insulated and stirred 3-5 hour, obtains matrix acid anhydrides;
(6) alcohol ester material, pre-treatment polyethylene are mixed with white rouge aerogel, stirring at normal temperature 1-2 hour, vacuum filtration, dry, mix with matrix acid anhydrides, insulated and stirred 20-30 minute at 60-70 DEG C, obtain matrix polyethylene acid anhydrides;
(7) by matrix polyethylene acid anhydrides, the mixing of amidation Paris white, insulated and stirred 2-3 hour at 125-135 DEG C, vacuum filtration, washs successively with water and ethanol, microwave drying;
(8) dried feed obtained above is mixed with each raw material of residue, stir at 120-150 DEG C of temperature, automatically cool after stirring, after vibratory screening apparatus, automatic charging, is extruded through High Temperature High Pressure by twin screw extruder, after product pulls out by forming machine, by cutting machine fixed length cutting, send into pipe-expanding machine, packaging warehouse-in after enlarging completes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510324442.6A CN104927157A (en) | 2015-06-13 | 2015-06-13 | Silica aerogel corrugated pipe |
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CN201510324442.6A CN104927157A (en) | 2015-06-13 | 2015-06-13 | Silica aerogel corrugated pipe |
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CN104927157A true CN104927157A (en) | 2015-09-23 |
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CN201510324442.6A Pending CN104927157A (en) | 2015-06-13 | 2015-06-13 | Silica aerogel corrugated pipe |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101157773A (en) * | 2007-11-09 | 2008-04-09 | 新疆屯河节水科技有限公司 | Polyethylene pipe |
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2015
- 2015-06-13 CN CN201510324442.6A patent/CN104927157A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101157773A (en) * | 2007-11-09 | 2008-04-09 | 新疆屯河节水科技有限公司 | Polyethylene pipe |
Non-Patent Citations (1)
Title |
---|
王成毓: "《功能性纳米碳酸钙的仿生合成技术》", 31 August 2009, 科学出版社 * |
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