CN112873785A - HRS woven cloth-sandwiched silicone tube and mixing process thereof - Google Patents
HRS woven cloth-sandwiched silicone tube and mixing process thereof Download PDFInfo
- Publication number
- CN112873785A CN112873785A CN202011580775.2A CN202011580775A CN112873785A CN 112873785 A CN112873785 A CN 112873785A CN 202011580775 A CN202011580775 A CN 202011580775A CN 112873785 A CN112873785 A CN 112873785A
- Authority
- CN
- China
- Prior art keywords
- layer
- silica gel
- cloth
- hrs
- carbon black
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000008569 process Effects 0.000 title claims abstract description 11
- 238000002156 mixing Methods 0.000 title claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 45
- 239000000741 silica gel Substances 0.000 claims description 29
- 229910002027 silica gel Inorganic materials 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 25
- 239000004744 fabric Substances 0.000 claims description 23
- 239000006229 carbon black Substances 0.000 claims description 16
- 235000012239 silicon dioxide Nutrition 0.000 claims description 13
- 238000004073 vulcanization Methods 0.000 claims description 11
- 238000009941 weaving Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 238000009954 braiding Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000009940 knitting Methods 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 238000004898 kneading Methods 0.000 claims description 3
- 238000010060 peroxide vulcanization Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 2
- 238000009987 spinning Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 51
- 239000000047 product Substances 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention provides an HRS (high-resolution steam-assisted spinning) woven cloth-sandwiched silicone tube and a mixing process thereof, wherein the HRS woven cloth-sandwiched silicone tube comprises a silicone outer layer, a woven layer arranged inside the silicone outer layer, a cloth-sandwiched layer arranged inside the woven layer and a pure silicone layer arranged inside the cloth-sandwiched layer, the pure silicone layer is a high-temperature-resistant layer, and the cloth-sandwiched layer is wound on the pure silicone layer.
Description
Technical Field
The invention relates to the field of silicone tube processing, in particular to an HRS woven cloth-sandwiched silicone tube and a mixing process thereof.
Background
The silicone tube is a standard silicone product which passes RoHs, PAHs, SGS detection, eight heavy metal detection and the like, and has the advantages of environmental protection, no pollution, cold resistance, high temperature resistance, no toxicity and no smell; the silicone tube can be widely applied to the fields of aviation, electronics, petroleum, chemical engineering, machinery, electrical appliances, medical use, ovens, food and the like, and is a good electrically-insulated and sealed liquid conveying pipeline. The existing cloth-sandwiched silicone tube usually needs multilayer cloth sandwiching for meeting performance requirements, and has the following defects: 1. the multi-layer cloth clamping process is complex, labor-consuming and high in cost. 2. The operation requirement is high, and skilled workers are required. 3. The product performance is unstable.
Disclosure of Invention
In view of the above technical problems, the present invention provides an HRS braided cloth sandwiched silicone tube, comprising:
silica gel is outer, locate outer inside weaving layer of silica gel, locate the inside double-layered cloth layer of weaving layer and locating the inside pure silica gel layer of double-layered cloth layer, pure silica gel layer is high temperature resistant layer, the winding of double-layered cloth layer is in on the pure silica gel layer.
The invention provides a HRS weaving cloth clamping silicone tube mixing process, which comprises the following steps:
firstly, extruding the pure silica gel layer by an extruder, firstly, carrying out glue refining in a dust-free workshop, adding raw glue and a solid compounding agent into a material preparation machine at one time, firstly, standing and curing are carried out, the curing and standing are carried out for more than 24 hours, the raw rubber macromolecule chain is slowly spread, a stock preparation machine is started, after the sizing material in the stock preparation machine is cut into blocks, the white carbon black is added, after the white carbon black and the sizing material are mixed into blocks, the white carbon black and the sizing material are subjected to vacuum banburying, when the rubber materials are kneaded into a large ball, the temperature is controlled to be not higher than 120 ℃, the white carbon black is supplemented, kneading for 10-15min after the added white carbon black is completely fused to prevent the added white carbon black from being vacuumized and dispersed, discharging the rubber material, performing primary vulcanization treatment, vulcanizing by hot air, adding the rubber material into an extruder, extruding the rubber material into a rubber tube pure silica gel layer by the extruder, connecting the extruder with a second vulcanization drying channel, and performing peroxide vulcanization treatment on the rubber material in the second vulcanization drying channel; secondly, processing a cloth clamping layer, and winding and pressing silica gel cloth on the surface of the pure silica gel layer by using a winding machine; thirdly, processing a braided layer, namely, using mechanical braiding, and braiding a plurality of strands by using a fabric knitting machine; and fourthly, extruding out the outer layer of the silica gel, and coating the outer layer of the silica gel on the woven layer.
Preferably, the surface of the discharging hopper is coated with a layer of dimethyl silicone oil.
Preferably, the braided layer is at least three layers, and the braided layer at the outermost layer is wound by adopting a rubber sheet.
Has the advantages that:
1. the high-efficiency and stable machine knitting is adopted to replace the traditional multilayer cloth clamping process, and the efficiency is greatly improved by more than 4 times.
2. Compared with the traditional processing mode of one-time vulcanization treatment, the two-time vulcanization treatment can further crosslink the silica gel, and improve the mechanical property and the compression permanent deformation property of the product.
3. The second sulfurizing treatment with peroxide can produce low molecular weight compounds, such as benzene and benzoic acid, mixed in silica gel to obtain high mechanical performance.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The invention provides an HRS (high-temperature-resistant) woven cloth-sandwiched silicone tube which comprises a silicone outer layer, a woven layer arranged inside the silicone outer layer, a cloth-sandwiched layer arranged inside the woven layer and a pure silicone layer arranged inside the cloth-sandwiched layer, wherein the pure silicone layer is a high-temperature-resistant layer, and the cloth-sandwiched layer is wound on the pure silicone layer.
The invention provides a mixing process of an HRS woven cloth-sandwiched silicone tube, which comprises the first step of extruding a pure silicone layer by an extruder, firstly carrying out rubber refining in a dust-free workshop, adding raw rubber and a solid compounding agent into a stock preparation machine at one time, firstly carrying out standing and health maintenance, carrying out health maintenance and standing for more than 24 hours, slowly unfolding a raw rubber macromolecular chain, starting the stock preparation machine, adding white carbon black when the rubber material in the stock preparation machine is sheared into blocks, carrying out vacuum banburying after the white carbon black and the rubber material are mixed into blocks, carrying out white carbon black supplement when the rubber material is kneaded into large groups, controlling the temperature to be not higher than 120 ℃, carrying out kneading for 10-15min after the supplemented white carbon black is completely fused, preventing vacuumizing and pumping, carrying out primary vulcanization treatment after discharging the rubber material, vulcanizing by hot air, adding the rubber material into the extruder after finishing, extruding the rubber material by the extruder to form a pure silicone layer of the rubber tube, the extruder is connected with a second vulcanization drying channel, and the rubber material is subjected to peroxide vulcanization treatment in the second vulcanization drying channel; secondly, processing a cloth clamping layer, and winding and pressing silica gel cloth on the surface of the pure silica gel layer by using a winding machine; thirdly, processing a braided layer, namely, using mechanical braiding, and braiding a plurality of strands by using a fabric knitting machine; and fourthly, extruding out the outer layer of the silica gel, and coating the outer layer of the silica gel on the woven layer. When discharging, the surface of the discharging hopper is coated with a layer of dimethyl silicone oil, the number of the braided layers is at least three, and the braided layer on the outermost layer is wound by a rubber sheet.
According to the invention, the thickness of the pure silicon adhesive layer is increased, so that the pure silicon adhesive layer is matched with the butt joint piece, the high temperature resistance is excellent, the pure silicon adhesive layer is wound by the silica gel cloth with the pressure to form the cloth clamping layer, the pressure resistance of the product is improved, the change rate of the outer diameter is reduced, and the clamp force resistance is improved; the knitting layer is knitted by a machine, the optimal knitting angle is controlled by program design, the reinforcing layer is completed quickly and efficiently, the efficiency is improved by more than 4 times, the stability of the product is improved, and the operation depending on skilled workers is reduced. Multiple strands and multiple layers can be braided according to pressure requirements; the outer layer is wound by a rubber sheet, the buffer between the outer layer and the hoop is increased, and the outer surface is smooth and attractive.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (4)
1. The utility model provides a HRS weaves double-layered cloth silicone tube which characterized in that: including the silica gel skin, locate the outer inside weaving layer of silica gel, locate the inside double-layered cloth layer of weaving layer and locating the inside pure silica gel layer of double-layered cloth layer, pure silica gel layer is high temperature resistant layer, the winding of double-layered cloth layer is in on the pure silica gel layer.
2. The HRS weaving cloth-sandwiched silicone tube mixing process according to claim 1, characterized in that: comprises a first step of extruding the pure silica gel layer by an extruder, firstly carrying out glue refining in a dust-free workshop, adding raw glue and a solid compounding agent into a material preparation machine at one time, firstly, standing and curing are carried out, the curing and standing are carried out for more than 24 hours, the raw rubber macromolecule chain is slowly spread, a stock preparation machine is started, after the sizing material in the stock preparation machine is cut into blocks, the white carbon black is added, after the white carbon black and the sizing material are mixed into blocks, the white carbon black and the sizing material are subjected to vacuum banburying, when the rubber materials are kneaded into a large ball, the temperature is controlled to be not higher than 120 ℃, the white carbon black is supplemented, kneading for 10-15min after the added white carbon black is completely fused to prevent the added white carbon black from being vacuumized and dispersed, discharging the rubber material, performing primary vulcanization treatment, vulcanizing by hot air, adding the rubber material into an extruder, extruding the rubber material into a rubber tube pure silica gel layer by the extruder, connecting the extruder with a second vulcanization drying channel, and performing peroxide vulcanization treatment on the rubber material in the second vulcanization drying channel; secondly, processing a cloth clamping layer, and winding and pressing silica gel cloth on the surface of the pure silica gel layer by using a winding machine; thirdly, processing a braided layer, namely, using mechanical braiding, and braiding a plurality of strands by using a fabric knitting machine; and fourthly, extruding out the outer layer of the silica gel, and coating the outer layer of the silica gel on the woven layer.
3. The HRS weaving cloth-sandwiched silicone tube mixing process according to claim 2, characterized in that: and coating a layer of dimethyl silicone oil on the surface of the discharging hopper.
4. The HRS weaving cloth-sandwiched silicone tube mixing process according to claim 2, characterized in that: the weaving layer is three layers at least, outermost weaving layer adopts the film winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580775.2A CN112873785A (en) | 2020-12-28 | 2020-12-28 | HRS woven cloth-sandwiched silicone tube and mixing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580775.2A CN112873785A (en) | 2020-12-28 | 2020-12-28 | HRS woven cloth-sandwiched silicone tube and mixing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112873785A true CN112873785A (en) | 2021-06-01 |
Family
ID=76043836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011580775.2A Pending CN112873785A (en) | 2020-12-28 | 2020-12-28 | HRS woven cloth-sandwiched silicone tube and mixing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112873785A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786541A (en) * | 2004-12-09 | 2006-06-14 | 上海尚翔汽车胶管有限公司 | Pressure resisting Silicon rubber hose and its mfg. method |
| CN201273410Y (en) * | 2008-12-29 | 2009-07-15 | 浙江铁马汽车零部件有限公司 | Low temperature-resistant braking hose |
| CN101706023A (en) * | 2009-12-09 | 2010-05-12 | 河北东劲液压橡塑制品有限公司 | Over-pressure over-temperature environment-friendly silica gel composite pipe and preparation method thereof |
-
2020
- 2020-12-28 CN CN202011580775.2A patent/CN112873785A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786541A (en) * | 2004-12-09 | 2006-06-14 | 上海尚翔汽车胶管有限公司 | Pressure resisting Silicon rubber hose and its mfg. method |
| CN201273410Y (en) * | 2008-12-29 | 2009-07-15 | 浙江铁马汽车零部件有限公司 | Low temperature-resistant braking hose |
| CN101706023A (en) * | 2009-12-09 | 2010-05-12 | 河北东劲液压橡塑制品有限公司 | Over-pressure over-temperature environment-friendly silica gel composite pipe 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 | ||
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Application publication date: 20210601 |