CN108384250A - A kind of foamed material and preparation method thereof - Google Patents
A kind of foamed material and preparation method thereof Download PDFInfo
- Publication number
- CN108384250A CN108384250A CN201810206242.4A CN201810206242A CN108384250A CN 108384250 A CN108384250 A CN 108384250A CN 201810206242 A CN201810206242 A CN 201810206242A CN 108384250 A CN108384250 A CN 108384250A
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- Prior art keywords
- silicon rubber
- agent
- parts
- slag
- foamed material
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- 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
- C08J9/06—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 by a chemical blowing agent
- C08J9/10—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 by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
- C08J2383/07—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
-
- 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
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
Abstract
The invention discloses a kind of foamed materials, including：Silicon rubber slag, methyl vinyl silicone rubber, reinforcing agent, hydroxy silicon oil, accelerating agent, vulcanizing agent and foaming agent, wherein, silicon rubber slag is waste residue of the waste and old insulator silicon rubber after base catalysis cracks, silicon rubber foam material cracks waste residue as raw material using waste and old insulator silicon rubber, the cost of material for reducing foamed material realizes the recycling of waste.
Description
Technical field
The invention belongs to technical field of function materials, and in particular to a kind of foamed material and preparation method thereof.
Background technology
The waste and old insulator silicon rubber recoverable silanes oil content of cracking, currently, people utilize waste silicone rubber
Waste material will produce a large amount of cracking waste residue during cracking production and recycling organosilicon ring body, and these waste residue ingredients are not
Single, main component is White Carbon black, quartz sand, aluminium hydroxide and minimal amount of residual silane class oil content, but cracks waste residue
Lack effective processing means, cause to crack waste residue bulk deposition, not only causes the huge waste of resource, but also pollute ring
Border is detrimental to health.Few people pay close attention to the synthetical recovery recycling problem of cracking waste residue at present, and correlative study is few.
Therefore, how effectively to reuse the silicon rubber on waste and old insulator and be applied to and prepare a kind of foam material
Material is those skilled in the art's technical problem urgently to be resolved hurrily.
Invention content
In view of this, the purpose of the present invention is to provide a kind of foamed material and preparation method thereof, silicon rubber foam material
Waste residue is cracked as raw material using waste and old insulator silicon rubber, and cost of material is low, realizes the recycling of waste, and preparation method
Simply.Its specific technical solution is as follows：
The present invention provides a kind of foamed materials, including：Silicon rubber slag, methyl vinyl silicone rubber, reinforcing agent, structure control
Preparation, accelerating agent, vulcanizing agent and foaming agent；
The silicon rubber slag is waste residue of the waste and old insulator silicon rubber after base catalysis cracks.
Preferably, 30-40 parts of the silicon rubber slag.
Preferably, it counts by weight, described methyl vinyl silicone rubber 45-50 parts；
Described reinforcing agent 3-5 parts；
Described constitution controller 1-2 parts；
Described accelerating agent 2-3 parts；
Described vulcanizing agent 3-4 parts；
Described foaming agent 1-2 parts.
Preferably, the silicon rubber slag is the silicon rubber slag of 80 mesh sieve.
Preferably, the methyl vinyl silicone rubber is the methyl vinyl silicone rubber that molecular weight is 50-70 ten thousand.
Preferably, the molar percentage of the contents of ethylene of the methyl vinyl silicone rubber is 0.13%-0.2%.
Preferably, the reinforcing agent is selected from fume colloidal silica, metallic fiber or glass fibre；
The constitution controller is selected from hydroxy silicon oil；
The accelerating agent is selected from titanium dioxide；
The vulcanizing agent is selected from dibenzoyl peroxide or 2,5- bishexanes；
The foaming agent is selected from azodicarbonamide.
Wherein, titanium dioxide adjusts foamed material color, and can improve the tensile strength and tear strength of foamed material.
Silicon rubber slag main component is White Carbon black, silica, aluminium hydroxide and minimal amount of residual silane class oil
Part.
The full skirt silicon rubber of high-voltage isulation subdivision is the resistance to combustion of one kind, corrosion resistant composite high-molecular organic material, master
It includes raw rubber, reinforced filling, constitution controller, fire retardant, vulcanizing agent, colorant etc. to want constituent component.Full skirt after cracking is split
Slag is solved, main component variation is little, reinforced filling, constitution controller and the silicon rubber object not cracked completely especially therein
Matter.
Preparing foamed material using waste and old insulator silicon rubber pyrolysis product can be turned waste into wealth, and resources circulation profit is reached
Purpose.
The present invention also provides a kind of preparation methods of foamed material, include the following steps：
Step 1)：By silicon rubber waste residue and methyl vinyl silicone rubber, reinforcing agent, constitution controller, accelerating agent, vulcanizing agent
It is mixed with foaming agent, obtains silicon rubber foam mixed liquor；
Step 2)：Step 1) the silicon rubber foam mixed liquor is poured into mold, obtains silicon rubber foam material；
Wherein, the silicon rubber slag is waste residue of the waste and old insulator silicon rubber after base catalysis cracks.
Preferably, step 1) the silicon rubber waste residue is the silicon rubber slag of 80 mesh sieve.
Preferably, it counts by weight, 30-40 parts of step 2) the silicon rubber waste residue；
Described methyl vinyl silicone rubber 45-50 parts；
The reinforcing agent is 3-5 parts；
The constitution controller is 1-2 parts；
The accelerating agent is 2-3 parts；
The vulcanizing agent is 3-4 parts；
The foaming agent is 1-2 parts.
It is highly preferred that step 1) is specially：By waste residue of the waste and old insulator silicon rubber cracked residue after base catalysis cracks
Under the conditions of 100-110 DEG C after dry 1-2 hours postcoolings, it is placed in crusher broken under the conditions of 2000-3600 turns/min
20~200 mesh cracking slag powder are obtained within 3-5 minutes, screened machine screening took the base catalysis cracking silicon rubber slag that 80 mesh sieve；It takes
30-40 parts of silicon rubber slags pour into 50 portions of methyl vinyl silicone rubber mixed liquors, under the rotating speed effect of 100-200 turns/min,
It is 3-5 parts of reinforced filling to be separately added into fume colloidal silica；1-2 parts of hydroxy silicon oil, 2-3 parts of titanium dioxide, vulcanizing agent peroxidating
3-4 parts of dibenzoyl, 1-2 parts of foaming agent azodicarbonamide, continuing stirring makes component be thoroughly mixed in 10-20 minutes.
It is highly preferred that the preparation method of step 1) the methyl vinyl silicone rubber mixed liquor is：By methyl ethylene silicon
The tetrahydrofuran for accounting for 1/2 volume of methyl vinyl silicone rubber is added in rubber, is allowed to mix with methyl vinyl silicone rubber, in electricity
Dynamic mechanical agitator is allowed to being stirred under the speed conditions of 100-200 turns/min in mixing slurry for 5-10 minutes；
It is highly preferred that step 2) is specially：Step 1) the silicon rubber foam mixed liquor is poured into the mold, it is described
Mold, which is placed in, vacuumizes environment and external condensed water fractionation condensing unit, and the external condensate fractionation device of mold is in mold hot briquetting
Tetrahydrofuran is recycled in the process, and it is 120 DEG C to adjust temperature, and foamable took out mold after 30 minutes, is air-dried, this temperature can fill
Divide evaporation tetrahydrofuran solvent and recycled by external condensing unit, finally obtains the silicon rubber foam material of heat cure.
As can be known from the above technical solutions, which is taken using the cracking waste residue of waste and old insulator silicon rubber as raw material
Cost of material is low, realizes the recycling of waste, and the foamed material preparation method is simple, and foam material made from this method
Expect that damping, sound insulation, heat-proof quality are good.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
In order to which the present invention is described in more detail, with reference to embodiment to a kind of foamed material provided by the invention, had
Describe to body.
Embodiment 1
The present invention provides a kind of foamed material, and preparation method is as follows：
(1) through base catalysis respectively 200 DEG C, 280 DEG C, 380 DEG C cracking after remaining silicon rubber cracking waste residue in 105 DEG C of items
Under part after dry 2 hours postcoolings in transposition crusher, obtains 20~200 mesh and split within broken 5 minutes under the conditions of 3600 turns/min
Solve ground-slag end, screened machine sieves the base catalysis cracking silicon rubber slag 30g for taking 80 mesh to sieve for 10 minutes, spare；
(2) 45~50g methyl vinyl silicone rubber slurries are weighed, addition accounts for about the appearance of methyl vinyl silicone rubber volume 1/2
Long-pending tetrahydrofuran solution is allowed to mix with methyl vinyl silicone rubber, in motor machine blender with the rotating speed of 200 turns/min
Under the conditions of stir be allowed within 10 minutes in mixing slurry, it is spare；
(3) silicon rubber slag in (1) is poured into (2) mixed serum, in motor machine blender with the rotating speed of 200 turns/min
Under effect, it is reinforced filling 3g to be separately added into fume colloidal silica；Hydroxy silicon oil 1g, titanium dioxide 3g, dibenzoyl peroxide
4g, azodicarbonamide 1g, continuing stirring makes component be thoroughly mixed in 20 minutes, spare；
(4) (3) mixing slurry obtained is poured into 80 × 80 × 80mm molds, mold is placed in container and passes through conduit
External condensed water is fractionated condensing unit, and the external condensate fractionation device of mold recycles the tetrahydrochysene of evaporation during mold hot briquetting
Furans, adjusting temperature are 130 DEG C of foamables, this temperature makes composite material foam in a mold completely and fully evaporates tetrahydrochysene
THF solvent, tetrahydrofuran steam are recycled under the condensation of external condenser；Mold is taken out after 30 minutes, is placed in
Nature cooling air-drying, obtains foamed material, and tetrahydrofuran is also able to condensing recovery utilization.It can after being removed from the molds
Foamed material is obtained, performance is shown in Table 1.
Embodiment 2
Foamed material in the present invention, preparation method are as follows：
(1) through base catalysis respectively 200 DEG C, 280 DEG C, 380 DEG C cracking after remaining silicon rubber cracking waste residue in 105 DEG C of items
Under part after dry 2 hours postcoolings in transposition crusher, obtains 20~200 mesh and split within broken 5 minutes under the conditions of 3600 turns/min
Solve ground-slag end, screened machine sieves the base catalysis cracking silicon rubber slag 40g for taking 80 mesh to sieve for 10 minutes, spare；
Step (2) is the same as the step (2) in embodiment 1.
(3) silicon rubber slag in (1) is poured into the mixed serum described in (2), in motor machine blender with 200 turns/min
Rotating speed effect under, be separately added into fume colloidal silica be reinforced filling 5g；Hydroxy silicon oil 2g, titanium dioxide 3g, peroxidating two
Benzoyl 4g, azodicarbonamide 2g, continuing stirring makes component be thoroughly mixed in 20 minutes, spare；
(4) the step of carrying out with 1 step of embodiment (4), performance is shown in Table 1.
The performance of 1 silicon rubber foam material of table
The experimental data of table 1 shows：(1) foam compression intensity, cold shock and tensile strength of the present invention, pressure resistance
Degree, cold shock test can meet the basic demand of foam performance sound absorption and insulation；
(2) tensile strength is shown in foamed material of the present invention, cracks the methyl vinyl silicone rubber of residue material and addition
Equal fusions are preferable, have certain tensile resistance；
(3) percent opening and porosity, which show foamed material of the present invention, certain foamed material attribute, and has certain
Sound absorbing performance；
(4) oise insulation factor of foamed material of the present invention is more than 35dB, and sound insulation property is good, while acoustic absorptivity is more than 0.2 (suction
Sonic system number reaches 0.2 and can be described as sound-absorbing material), show the effect that the foamed material has complex sound insulation sound absorption；
(5) presentation quality shows when using foamed material of the present invention, is carried out at some in combination with actual use situation
Reason.
To sum up, Example 1 and Example 2 of the present invention provides foamed material damping, sound insulation, heat-proof quality are good.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of foamed material, which is characterized in that including：Silicon rubber slag, methyl vinyl silicone rubber, reinforcing agent, structure control
Agent, accelerating agent, vulcanizing agent and foaming agent；
The silicon rubber slag is waste residue of the waste and old insulator silicon rubber after base catalysis cracks.
2. foamed material according to claim 1, which is characterized in that count by weight, the silicon rubber slag 30-40
Part.
3. foamed material according to claim 1, which is characterized in that count by weight, the methyl ethylene silicon rubber
45-50 parts of glue；
Described reinforcing agent 3-5 parts；
Described constitution controller 1-2 parts；
Described accelerating agent 2-3 parts；
Described vulcanizing agent 3-4 parts；
Described foaming agent 1-2 parts.
4. foamed material according to claim 1 or 2, which is characterized in that the silicon rubber slag is the silicon rubber of 80 mesh sieve
Slag.
5. foamed material according to claim 2, which is characterized in that the methyl vinyl silicone rubber is that molecular weight is
The methyl vinyl silicone rubber of 50-70 ten thousand.
6. foamed material according to claim 5, which is characterized in that the contents of ethylene of the methyl vinyl silicone rubber
Molar percentage be 0.13%-0.2%.
7. silicon rubber foam material according to claim 2, which is characterized in that the reinforcing agent is selected from vapor phase method hard charcoal
Black, metallic fiber or glass fibre；
The constitution controller is selected from hydroxy silicon oil；
The accelerating agent is selected from titanium dioxide；
The vulcanizing agent is selected from dibenzoyl peroxide or 2,5- bishexanes；
The foaming agent is selected from azodicarbonamide.
8. a kind of preparation method of foamed material, which is characterized in that include the following steps：
Step 1)：By silicon rubber slag and methyl vinyl silicone rubber, reinforcing agent, constitution controller, accelerating agent, vulcanizing agent and foaming
Agent mixes, and obtains silicon rubber foam mixed liquor；
Step 2)：Step 1) the silicon rubber foam mixed liquor is poured into mold, obtains silicon rubber foam material；
Wherein, the silicon rubber slag is waste residue of the waste and old insulator silicon rubber after base catalysis cracks.
9. preparation method according to claim 7, which is characterized in that step 1) the silicon rubber slag is the silicon rubber of 80 mesh sieve
Glue residue.
10. preparation method according to claim 7, which is characterized in that count by weight, step 2)
30-40 parts of the silicon rubber waste residue；
Methyl vinyl silicone rubber 45-50 parts described in the methyl ethylene；
The reinforcing agent is 3-5 parts；
The constitution controller is 1-2 parts；
The accelerating agent is 2-3 parts；
The vulcanizing agent is 3-4 parts；
The foaming agent is 1-2 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206242.4A CN108384250A (en) | 2018-03-13 | 2018-03-13 | A kind of foamed material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206242.4A CN108384250A (en) | 2018-03-13 | 2018-03-13 | A kind of foamed material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108384250A true CN108384250A (en) | 2018-08-10 |
Family
ID=63067565
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| CN201810206242.4A Pending CN108384250A (en) | 2018-03-13 | 2018-03-13 | A kind of foamed material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861691A (en) * | 2021-09-23 | 2021-12-31 | 深圳市汉嵙新材料技术有限公司 | Heat-conducting silica gel sheet and preparation method thereof |
| US20220403141A1 (en) * | 2021-06-17 | 2022-12-22 | Nam Liong Global Corporation | Foamable composition containing recovered silicon sludge, foamed material prepared therefrom and composite product including the same |
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| US5616646A (en) * | 1994-11-07 | 1997-04-01 | Genesee Polymers Corporation | Restructuring silicone rubber to produce fluid or grease |
| CN102134331A (en) * | 2011-01-21 | 2011-07-27 | 合肥工业大学 | Recycling method of waste silicone rubber |
| CN103626796A (en) * | 2012-08-28 | 2014-03-12 | 杨晓林 | Recovery method of silicone rubber |
| CN104059242A (en) * | 2014-06-18 | 2014-09-24 | 中国科学院宁波材料技术与工程研究所 | Preparation method of self-adhesion silicon rubber foam material |
| CN106366613A (en) * | 2016-11-10 | 2017-02-01 | 广东电网有限责任公司电力科学研究院 | Material with effects of insulating sound and reducing noise and preparation method of material |
| CN106995610A (en) * | 2016-01-26 | 2017-08-01 | 东莞市希贝实业有限公司 | A kind of foamed silastic material and preparation method thereof |
-
2018
- 2018-03-13 CN CN201810206242.4A patent/CN108384250A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154169A (en) * | 1991-12-05 | 1993-06-22 | Miura Koji | Production of artificial breast and artificial breast |
| US5616646A (en) * | 1994-11-07 | 1997-04-01 | Genesee Polymers Corporation | Restructuring silicone rubber to produce fluid or grease |
| CN102134331A (en) * | 2011-01-21 | 2011-07-27 | 合肥工业大学 | Recycling method of waste silicone rubber |
| CN103626796A (en) * | 2012-08-28 | 2014-03-12 | 杨晓林 | Recovery method of silicone rubber |
| CN104059242A (en) * | 2014-06-18 | 2014-09-24 | 中国科学院宁波材料技术与工程研究所 | Preparation method of self-adhesion silicon rubber foam material |
| CN106995610A (en) * | 2016-01-26 | 2017-08-01 | 东莞市希贝实业有限公司 | A kind of foamed silastic material and preparation method thereof |
| CN106366613A (en) * | 2016-11-10 | 2017-02-01 | 广东电网有限责任公司电力科学研究院 | Material with effects of insulating sound and reducing noise and preparation method of material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220403141A1 (en) * | 2021-06-17 | 2022-12-22 | Nam Liong Global Corporation | Foamable composition containing recovered silicon sludge, foamed material prepared therefrom and composite product including the same |
| CN113861691A (en) * | 2021-09-23 | 2021-12-31 | 深圳市汉嵙新材料技术有限公司 | Heat-conducting silica gel sheet and preparation method thereof |
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Application publication date: 20180810 |