CN114193646A - Low-heat-loss silica gel product vulcanization process - Google Patents
Low-heat-loss silica gel product vulcanization process Download PDFInfo
- Publication number
- CN114193646A CN114193646A CN202111517161.4A CN202111517161A CN114193646A CN 114193646 A CN114193646 A CN 114193646A CN 202111517161 A CN202111517161 A CN 202111517161A CN 114193646 A CN114193646 A CN 114193646A
- Authority
- CN
- China
- Prior art keywords
- roller
- added
- silica gel
- curing
- mixing
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000000741 silica gel Substances 0.000 title claims abstract description 16
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 16
- 238000004073 vulcanization Methods 0.000 title claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000012763 reinforcing filler Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims 5
- 239000004945 silicone rubber Substances 0.000 claims 5
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a low-heat-loss silica gel product vulcanization process, which comprises the following steps of: the invention has the beneficial effects that better preparation effect can be achieved by adjusting the roller of the open mill at a certain speed and at a proper temperature, and meanwhile, the phenomenon that rubber becomes particle is avoided by adjusting the distance between two rollers, thereby influencing the processing quality.
Description
Technical Field
The invention discloses a low-heat-loss silica gel product vulcanization process, and belongs to the technical field of silica gel product preparation.
Background
In the processing process of the silica gel product, the silica gel product needs to be vulcanized, the vulcanization operation is carried out by adding various crosslinking aids under certain temperature and pressure conditions, and a low-heat-loss silica gel product vulcanization process is needed for improving the vulcanization quality.
However, the existing silica gel product has no good vulcanization effect, and the phenomenon of vulcanization and non-molding is easy to occur, so that the processing quality is influenced.
Disclosure of Invention
The invention provides a vulcanization process of a low-heat-loss silica gel product, which aims to solve the technical problem.
In order to achieve the purpose, the invention provides the following technical scheme: a low-heat-loss silica gel product vulcanization process comprises the following steps: raw rubber → adding reinforcing filler → adding heat-resistant assistant → adding colorant → thin channel 5 times → blanking, then oven heat treatment → remixing → adding vulcanizing agent → thin channel → standing overnight → remixing → discharging.
Preferably, the silica gel is placed into an open mill, the roller speed ratio of the double-roller open mill is controlled to be 1.0-1.5, the mixing temperature is lower than 45 ℃, the roller spacing is controlled to be 1-5 mm when the mixing is initially started, then the roller spacing is gradually enlarged, and the mixing time is 20-40 min.
Preferably, a temperature sensor is added in the open mill to detect the temperature of the roller, and when the temperature is too high, cooling water is added to cool the roller.
Preferably, when a large amount of filler is added, the filler is added into a mixer to be stirred and mixed for 10-15 min, and excessive filler is prevented from being added at one time in a quantitative feeding mode.
Preferably, the thin sheet is scraped off by using a wear-resistant plastic scraper in the thin passing process.
Preferably, when the rubber is granulated, the roll gap is adjusted to be small, thereby improving the kneading effect.
Compared with the prior art, the invention has the following beneficial effects:
the invention can achieve better preparation effect by adjusting the rollers of the open mill at a certain speed and at a proper temperature, and simultaneously avoids the phenomenon that rubber becomes granular by adjusting the distance between the two rollers, thereby influencing the processing quality.
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, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A low-heat-loss silica gel product vulcanization process comprises the following steps: raw rubber → adding reinforcing filler → adding heat-resistant assistant → adding colorant → thin channel 5 times → blanking, then oven heat treatment → remixing → adding vulcanizing agent → thin channel → standing overnight → remixing → discharging.
The silica gel is placed into an open mill, the speed ratio of a roller of the double-roller open mill is controlled to be 1.0-1.5, the mixing temperature is lower than 45 ℃, further scorching or volatilization loss of a vulcanizing agent can be prevented, when the mixing is started initially, the roller spacing is controlled to be 1-5 mm, then the roller spacing is gradually enlarged, and the mixing time is 20-40 min.
Wherein, a temperature sensor is added in the open mill to detect the temperature of the roller, and when the temperature is overhigh, cooling water is added to cool the roller.
When a large amount of filler is added, the filler is added into a mixing machine to be stirred and mixed for 10-15 min, and excessive filler is prevented from being added at one time in a quantitative feeding mode, so that the phenomenon that spherical bodies formed by the filler and raw rubber float on stacking rubber to cause uneven dispersion is avoided, and the processing effect is influenced.
Wherein the thin sheet is scraped off by using a wear-resistant plastic scraper in the thin passing process.
Wherein, when finding rubber is the miniaturation phenomenon, adjust the roll spacing and diminish to improve the effect of mixing, use the brush to clean and collect the micelle that will fall on the take-up (stock) pan, thereby avoid appearing the phenomenon that contains the pimple in the material that smelts, and then influence the quality of processing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A low-heat-loss silica gel product vulcanization process comprises the following steps: raw rubber → adding reinforcing filler → adding heat-resistant assistant → adding colorant → thin channel 5 times → blanking, then oven heat treatment → remixing → adding vulcanizing agent → thin channel → standing overnight → remixing → discharging.
2. The process for curing a low heat loss silicone rubber article as claimed in claim 1, wherein: the silica gel is placed into an open mill, the speed ratio of a roller of the double-roller open mill is controlled to be 1.0-1.5, the mixing temperature is lower than 45 ℃, the roller spacing is controlled to be 1-5 mm when the mixing is started initially, then the roller spacing is gradually enlarged, and the mixing time is 20-40 min.
3. The process for curing a low heat loss silicone rubber article as claimed in claim 1, wherein: a temperature sensor is added in the open mill to detect the temperature of the roller, and when the temperature is too high, cooling water is added to cool the roller.
4. The process for curing a low heat loss silicone rubber article as claimed in claim 1, wherein: when a large amount of filler is added, the filler is added into a mixing machine to be stirred and mixed for 10-15 min, and excessive filler is prevented from being added at one time in a quantitative feeding mode.
5. The process for curing a low heat loss silicone rubber article as claimed in claim 1, wherein: the thin sheet is scraped off by using a wear-resistant plastic scraper during thin passing.
6. The process for curing a low heat loss silicone rubber article as claimed in claim 1, wherein: when the rubber is found to be in a granulation state, the adjusting roller distance is reduced, so that the mixing effect is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111517161.4A CN114193646A (en) | 2021-12-08 | 2021-12-08 | Low-heat-loss silica gel product vulcanization process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111517161.4A CN114193646A (en) | 2021-12-08 | 2021-12-08 | Low-heat-loss silica gel product vulcanization process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114193646A true CN114193646A (en) | 2022-03-18 |
Family
ID=80652919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111517161.4A Pending CN114193646A (en) | 2021-12-08 | 2021-12-08 | Low-heat-loss silica gel product vulcanization process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114193646A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863866A (en) * | 2017-03-01 | 2017-06-20 | 北京天元奥特橡塑有限公司 | A kind of preparation method of the outer silicon car sebific duct of interior fluorine |
| CN107099143A (en) * | 2017-04-27 | 2017-08-29 | 深圳市中宇恒通电热科技有限公司 | A kind of manufacture craft of the safe thermal conductivity heat-insulating piece of novel battery |
| CN108058282A (en) * | 2017-12-25 | 2018-05-22 | 安徽立信橡胶科技有限公司 | A kind of novel cooling device of open mill |
| CN209851367U (en) * | 2019-04-30 | 2019-12-27 | 四川亚西橡塑机器有限公司 | Mill roller structure that adjusts temperature |
| CN111806005A (en) * | 2020-07-08 | 2020-10-23 | 滁州君越高分子新材料有限公司 | Synthesis process of anti-static silicone rubber |
| CN112876852A (en) * | 2021-02-26 | 2021-06-01 | 东莞市贝克摩尔高性能材料有限公司 | Medical silicone rubber and production process thereof |
-
2021
- 2021-12-08 CN CN202111517161.4A patent/CN114193646A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863866A (en) * | 2017-03-01 | 2017-06-20 | 北京天元奥特橡塑有限公司 | A kind of preparation method of the outer silicon car sebific duct of interior fluorine |
| CN107099143A (en) * | 2017-04-27 | 2017-08-29 | 深圳市中宇恒通电热科技有限公司 | A kind of manufacture craft of the safe thermal conductivity heat-insulating piece of novel battery |
| CN108058282A (en) * | 2017-12-25 | 2018-05-22 | 安徽立信橡胶科技有限公司 | A kind of novel cooling device of open mill |
| CN209851367U (en) * | 2019-04-30 | 2019-12-27 | 四川亚西橡塑机器有限公司 | Mill roller structure that adjusts temperature |
| CN111806005A (en) * | 2020-07-08 | 2020-10-23 | 滁州君越高分子新材料有限公司 | Synthesis process of anti-static silicone rubber |
| CN112876852A (en) * | 2021-02-26 | 2021-06-01 | 东莞市贝克摩尔高性能材料有限公司 | Medical silicone rubber and production process 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 |