CN113150417A - Flexible low-temperature cryogenic heat-insulating material and preparation method thereof - Google Patents
Flexible low-temperature cryogenic heat-insulating material and preparation method thereof Download PDFInfo
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- CN113150417A CN113150417A CN202110274338.6A CN202110274338A CN113150417A CN 113150417 A CN113150417 A CN 113150417A CN 202110274338 A CN202110274338 A CN 202110274338A CN 113150417 A CN113150417 A CN 113150417A
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- 239000011810 insulating material Substances 0.000 title claims abstract description 9
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 229920001971 elastomer Polymers 0.000 claims abstract description 32
- 239000005060 rubber Substances 0.000 claims abstract description 32
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003063 flame retardant Substances 0.000 claims abstract description 7
- 239000011256 inorganic filler Substances 0.000 claims abstract description 7
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 7
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 7
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 7
- 239000005662 Paraffin oil Substances 0.000 claims abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004088 foaming agent Substances 0.000 claims abstract description 6
- 239000010687 lubricating oil Substances 0.000 claims abstract description 6
- 239000011593 sulfur Substances 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000012774 insulation material Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 2
- 239000004709 Chlorinated polyethylene Substances 0.000 claims 2
- 229920002943 EPDM rubber Polymers 0.000 claims 2
- 229920000459 Nitrile rubber Polymers 0.000 claims 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims 1
- 239000004156 Azodicarbonamide Substances 0.000 claims 1
- 239000004604 Blowing Agent Substances 0.000 claims 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims 1
- 235000019399 azodicarbonamide Nutrition 0.000 claims 1
- VJRITMATACIYAF-UHFFFAOYSA-N benzenesulfonohydrazide Chemical compound NNS(=O)(=O)C1=CC=CC=C1 VJRITMATACIYAF-UHFFFAOYSA-N 0.000 claims 1
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 1
- 239000000378 calcium silicate Substances 0.000 claims 1
- 229910052918 calcium silicate Inorganic materials 0.000 claims 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 claims 1
- 239000004927 clay Substances 0.000 claims 1
- 229910052570 clay Inorganic materials 0.000 claims 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims 1
- 239000012990 dithiocarbamate Substances 0.000 claims 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims 1
- 239000000347 magnesium hydroxide Substances 0.000 claims 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims 1
- 229920001084 poly(chloroprene) Polymers 0.000 claims 1
- 239000004800 polyvinyl chloride Substances 0.000 claims 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 claims 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims 1
- 229960002447 thiram Drugs 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 13
- 238000001816 cooling Methods 0.000 abstract description 9
- 238000001035 drying Methods 0.000 abstract description 8
- 239000006260 foam Substances 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
-
- 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
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- 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
- C08K3/02—Elements
- C08K3/06—Sulfur
Abstract
The product provides a flexible low-temperature cryogenic heat-insulating material and a preparation method thereof, and is characterized in that 20-25 parts of raw material synthetic rubber, 35-40 parts of inorganic filler, 12-15 parts of flame retardant, 10-15 parts of foaming agent, 8-11 parts of paraffin oil and 4 parts of lubricating oil are poured into a banburying chamber, banburying is carried out for 15min at the temperature of 120-140 ℃, discharging is poured into an open mill for slicing, cooling for standby application, the cooled high-temperature rubber is put into the open mill according to slices, sequentially added after a heat pressing wrapping roller, 0.5 part of sulfur and 1 part of rubber accelerator are weighed, the rubber material is uniformly turned and then added into an automatic turning device, a timer is started, automatic turning is started for feeding within 360 seconds, the thickness of the rubber strip is 5-8mm, the width of the rubber strip is 200mm, and the length of the rubber strip is not cut; putting the rubber strip into an extruder at the rotating speed of 15-40 r/min, uniformly feeding the rubber strip into a feeding port, and extruding and molding; the extruded material is sent into a drying oven with a plurality of drying channels through a material guiding rod to foam out a rubber tube (plate).
Description
Technical Field
The invention relates to a flexible low-temperature cryogenic heat-insulating material and a preparation method thereof, belongs to the field of heat-insulating material application, and particularly relates to a high-toughness heat-insulating cold-preserving material under a low-temperature condition and a preparation method thereof.
Background
At present, rubber and plastic materials on the market generally become brittle at low temperature (-40 ℃), the toughness of the product is reduced, and the product is fragile and not beneficial to cold-belt construction.
Disclosure of Invention
The present invention is directed to provide a cold insulation material having excellent toughness at low temperature to solve the problem of embrittlement of the product at low temperature as proposed in the above background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the high-toughness flexible cold-insulation heat-insulation material under the low-temperature condition is characterized by comprising the following raw materials:
the manufacturing method of the high-temperature-resistant flexible heat-insulating material comprises the following steps:
(1) weighing the following raw materials according to the components: 20-25 parts of synthetic rubber, 35-40 parts of inorganic filler, 12-15 parts of flame retardant, 10-15 parts of foaming agent, 8-11 parts of paraffin oil, 4 parts of lubricating oil, 0.5 part of sulfur and 1 part of rubber accelerator.
(2) Banburying with high-temperature glue: putting 20-25 parts of synthetic rubber, 35-40 parts of inorganic filler, 12-15 parts of flame retardant, 10-15 parts of foaming agent, 8-11 parts of paraffin oil and 4 parts of lubricating oil which are weighed according to parts by weight into an internal mixing chamber, and internally mixing for 15min at the temperature of 120-140 ℃;
(3) slicing: pouring the discharged material in the step (2) into an open mill for slicing, wherein the thickness of the cut film is 5-9mm, the width of the cut film is 600-4000 mm, and the length of the cut film is 3000-4000mm, and cooling for later use;
(4) and (3) open milling of molding rubber: putting the high-temperature rubber cooled in the step 3 into an open mill according to pieces, sequentially adding 0.5 part of sulfur and 1 part of rubber accelerator according to parts by weight after pressing a hot wrapping roller, uniformly turning, and then adding the rubber material to an automatic turning and starting timer, wherein the automatic turning starts to be blanked for 360 seconds, the thickness of the rubber strip is 5-8mm, the width of the rubber strip is 200mm, and the length of the rubber strip is not cut into sections;
(5) extruding: putting the adhesive tape obtained in the step (4) into an extruder, starting the extruder, adjusting the rotating speed to 15-40 rpm, and uniformly feeding the adhesive tape into a feeding port for extrusion molding;
(6) and (3) vulcanization foaming: feeding the extrusion molding material obtained in the step 5 into an oven with a plurality of drying channels through a material guiding rod to foam to obtain a rubber tube (plate);
(7) traction cooling: introducing the foamed rubber-plastic pipe (plate) into a water tank by using a material guiding rod, cooling for 5-10 minutes, and conveying to a cutting table by using a conveying belt;
(8) and (3) cutting and packaging: adjusting the speed of the cutting table to be consistent with that of the cooling conveyor belt, adjusting the meter counter, shearing according to the size requirement, packaging and placing the cutting table in a storage area.
Furthermore, the multiple sections of drying tunnels are six sections, and the temperature of each section of drying tunnel is as follows: one section is 130 ℃, two sections are 132 ℃, three sections are 140 ℃, four sections are 145 ℃, five sections are 165 ℃ and six sections are 175 ℃.
Further, in step 5, the temperature of the rubber strip on the extruder is: the head section is 40-50 deg.C, the extrusion section is 35-45 deg.C, the plasticizing section is 35-45 deg.C, and the screw section is 25-35 deg.C.
Detailed Description
(1) Weighing the following raw materials according to the components: 20-25 parts of synthetic rubber, 35-40 parts of inorganic filler, 12-15 parts of flame retardant, 10-15 parts of foaming agent, 8-11 parts of paraffin oil, 4 parts of lubricating oil, 0.5 part of sulfur and 1 part of rubber accelerator.
(2) Banburying with high-temperature glue: putting 20-25 parts of synthetic rubber, 35-40 parts of inorganic filler, 12-15 parts of flame retardant, 10-15 parts of foaming agent, 8-11 parts of paraffin oil and 4 parts of lubricating oil which are weighed according to parts by weight into an internal mixing chamber, and internally mixing for 15min at the temperature of 120-140 ℃;
(3) slicing: pouring the discharged material in the step (2) into an open mill for slicing, wherein the thickness of the cut film is 5-9mm, the width of the cut film is 600-4000 mm, and the length of the cut film is 3000-4000mm, and cooling for later use;
(4) and (3) open milling of molding rubber: putting the high-temperature rubber cooled in the step 3 into an open mill according to pieces, sequentially adding 0.5 part of sulfur and 1 part of rubber accelerator according to parts by weight after pressing a hot wrapping roller, uniformly turning, and then adding the rubber material to an automatic turning and starting timer, wherein the automatic turning starts to be blanked for 360 seconds, the thickness of the rubber strip is 5-8mm, the width of the rubber strip is 200mm, and the length of the rubber strip is not cut into sections;
(5) extruding: putting the adhesive tape obtained in the step (4) into an extruder, starting the extruder, adjusting the rotating speed to 15-40 rpm, and uniformly feeding the adhesive tape into a feeding port for extrusion molding;
(6) and (3) vulcanization foaming: feeding the extrusion molding material obtained in the step 5 into an oven with a plurality of drying channels through a material guiding rod to foam to obtain a rubber tube (plate);
(7) traction cooling: introducing the foamed rubber-plastic pipe (plate) into a water tank by using a material guiding rod, cooling for 5-10 minutes, and conveying to a cutting table by using a conveying belt;
(8) and (3) cutting and packaging: adjusting the speed of the cutting table to be consistent with that of the cooling conveyor belt, adjusting the meter counter, shearing according to the size requirement, packaging and placing the cutting table in a storage area.
Furthermore, the multiple sections of drying tunnels are six sections, and the temperature of each section of drying tunnel is as follows: one section is 130 ℃, two sections are 132 ℃, three sections are 140 ℃, four sections are 145 ℃, five sections are 165 ℃ and six sections are 175 ℃.
Further, in step 5, the temperature of the rubber strip on the extruder is: the head section is 40-50 deg.C, the extrusion section is 35-45 deg.C, the plasticizing section is 35-45 deg.C, and the screw section is 25-35 deg.C.
Claims (7)
1. A flexible low-temperature cryogenic heat-insulating material is characterized by having good toughness in a low-temperature state and being a high-toughness heat-insulating cold-insulating material in a low-temperature condition.
2. The flexible low-temperature cryogenic insulation material of claim 1, which consists of the following raw materials in percentage by mass: 20-25 parts of synthetic rubber, 35-40 parts of inorganic filler, 12-15 parts of flame retardant, 10-15 parts of foaming agent, 8-11 parts of paraffin oil, 4 parts of lubricating oil, 0.5 part of sulfur and 1 part of rubber accelerator.
3. The flexible cryogenic insulation of claim 1 wherein the synthetic rubber is comprised of one or both of acrylonitrile butadiene rubber (NBR) or polychloroprene (CR) or ethylene-propylene-diene rubber (EPDM) and one of polyvinyl chloride (PVC) or Chlorinated Polyethylene (CPE).
4. The flexible cryogenic insulation of claim 1 wherein the blowing agent is one or both of azodicarbonamide, azodiisobutyronitrile, or benzenesulfonylhydrazide.
5. The flexible low temperature cryogenic insulation material of claim 1 wherein the flame retardant is one or both of magnesium hydroxide, aluminum hydroxide, antimony trioxide.
6. The flexible low-temperature cryogenic insulation material of claim 1, wherein the inorganic filler is one or more of clay, calcium silicate, calcium carbonate and talcum powder.
7. The flexible low-temperature cryogenic insulating material of claim 1, wherein the rubber accelerator is one or more of a sulfenamide accelerator, a dithiocarbamate accelerator or a thiuram accelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110274338.6A CN113150417A (en) | 2021-03-15 | 2021-03-15 | Flexible low-temperature cryogenic heat-insulating material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110274338.6A CN113150417A (en) | 2021-03-15 | 2021-03-15 | Flexible low-temperature cryogenic heat-insulating material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113150417A true CN113150417A (en) | 2021-07-23 |
Family
ID=76887358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110274338.6A Pending CN113150417A (en) | 2021-03-15 | 2021-03-15 | Flexible low-temperature cryogenic heat-insulating material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113150417A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093653A (en) * | 2010-12-31 | 2011-06-15 | 江苏兆胜建材有限公司 | Colored rubber-plastic heat-insulating material and preparation method thereof |
| CN103724732A (en) * | 2013-01-25 | 2014-04-16 | 周良文 | Environment-friendly NBR (Nitrile Butadiene Rubber) rubber and plastic thermal insulation material |
| CN103910913A (en) * | 2013-01-08 | 2014-07-09 | 周良文 | Environment-friendly rubber plastic heat-insulating material and its preparation method |
| CN107698987A (en) * | 2017-10-27 | 2018-02-16 | 广东德旭绝热材料有限公司 | A kind of rubber-plastic insulating expanded material based on rosin acid modified calcium carbonate filler and preparation method thereof |
| US20180258245A1 (en) * | 2017-03-08 | 2018-09-13 | Armacell Enterprise Gmbh & Co. Kg | Flexible foam with improved insulation properties |
| CN108752670A (en) * | 2018-05-31 | 2018-11-06 | 河北神州保温建材集团有限公司 | A kind of rubber plastic blend expanded material and preparation method thereof |
-
2021
- 2021-03-15 CN CN202110274338.6A patent/CN113150417A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093653A (en) * | 2010-12-31 | 2011-06-15 | 江苏兆胜建材有限公司 | Colored rubber-plastic heat-insulating material and preparation method thereof |
| CN103910913A (en) * | 2013-01-08 | 2014-07-09 | 周良文 | Environment-friendly rubber plastic heat-insulating material and its preparation method |
| CN103724732A (en) * | 2013-01-25 | 2014-04-16 | 周良文 | Environment-friendly NBR (Nitrile Butadiene Rubber) rubber and plastic thermal insulation material |
| US20180258245A1 (en) * | 2017-03-08 | 2018-09-13 | Armacell Enterprise Gmbh & Co. Kg | Flexible foam with improved insulation properties |
| CN107698987A (en) * | 2017-10-27 | 2018-02-16 | 广东德旭绝热材料有限公司 | A kind of rubber-plastic insulating expanded material based on rosin acid modified calcium carbonate filler and preparation method thereof |
| CN108752670A (en) * | 2018-05-31 | 2018-11-06 | 河北神州保温建材集团有限公司 | A kind of rubber plastic blend expanded material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张玉龙, 国防工业出版社 * |
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Application publication date: 20210723 |