CN102220003A - Composition for producing foaming silica gel plate and production method of foaming silica gel plate - Google Patents
Composition for producing foaming silica gel plate and production method of foaming silica gel plate Download PDFInfo
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Abstract
The invention discloses a composition for producing a foaming silica gel plate and a production method of the foaming silica gel plate. The composition for producing the foaming silica gel plate comprises the following ingredients by weight: 100 of silicon rubber, 3-4 of foaming agent, 1-2 of vulcanized agent and 1 of colorant, wherein the foaming agent comprises the following ingredients by weight, 100 of azodiisobutyronitrile, 50-80 of methyl vinyl silicone rubber, and 10-30 of vinyl silicon oil, and the vulcanized agent comprises 100 of dibenzoyl peroxide and 50-120 of methyl vinyl silicone rubber. The production method of the foaming silica gel plate comprises the following steps: mixing, calendaring, synchronization foaming under normal pressure and vulcanization, so as to prepare the continuous foaming silica gel plate. Compared with the prior art, the foaming silica gel plate has the advantages of high foaming multiplying power and low density; and the foaming silica gel plate can be continuously produced by adopting the production method of the foaming silica gel plate, and the production method has the advantages of high raw material utilization rate and low labor intensity.
Description
Technical field
The present invention relates to a kind of composition and foamed silica gel plate producing process that is used for production foamed silica gel plate.
Background technology
Silica gel has the characteristic of organic elastomeric polymer body, has the cryogenic adaptability of extensive height of inorganic substance concurrently, and the silica gel goods become the preferred material in fields such as military aerospace, medical treatment, automobile, building.The foamed silica gel plate has not only kept the original excellent properties of silica gel, and product has heat insulation again, sound insulation, and damping, characteristics such as product weight is light, the field that the foamed silica gel plate is used obtains very big extension.The expansion ratio of silica-gel plate is high more, and its density is low more, and is just light more with the product weight of volume, simultaneously heat insulation, sound insulation, and damping performance is just good more.
General compression molding moulding, the batch production method of adopting in the existing foamed silica gel plate production process, promptly the silica gel of foaming not is placed on and vulcanizes in the mould and foam, be subjected to the restriction of selected whipping agent and vulcanizing agent, foaming and sulfidation all need be carried out under certain pressure, foam and vulcanize two processes and can not effectively cooperate, the foaming efficient of whipping agent is lower, and the silica-gel plate density of producing is generally all greater than 0.5g/cm
3
In addition, owing to compression molding moulding, batch production method are to adopt in mould silica gel to be foamed and sulfurized, so can not continuity production foamed silica gel plate.As publication number the preparation method who discloses a kind of silicone rubber sponge backing board in the application for a patent for invention prospectus of CN1673280A, this method need be placed on sheet material and foam in the mould and vulcanize, and need carry out at " 170～200 ℃ of temperature are under the pressure of 20Mpa ".
Summary of the invention
The problem to be solved in the present invention is that can't to continuously produce high foaming under normal pressure be that density is less than or equal to 0.35g/cm to prior art
3The foamed silica gel plate.
For realizing above-mentioned purpose, the invention provides a kind of composition that is used for production foamed silica gel plate, include silicon rubber, whipping agent, vulcanizing agent and tinting material, wherein by weight:
Silicon rubber 100
Whipping agent 3～4
Vulcanizing agent 1～2
Tinting material 1
The composition of described whipping agent and ratio be by weight:
Diisopropyl azodicarboxylate 100
Methyl vinyl silicone rubber 50～80
Vinyl silicone oil 10～30
The composition of described vulcanizing agent and ratio be by weight:
Dibenzoyl peroxide 100
Methyl vinyl silicone rubber 50～120
The described production foamed silica gel plate composition that is used for is characterised in that, the blowing temperature basic synchronization of described whipping agent reaches the plateau cure temperature of described vulcanizing agent, the silica gel sheet that uses described production foamed silica gel plate composition production to go out can carry out synchronous foaming and sulfuration under condition of normal pressure, thereby reaches the purpose that improves foaming efficient.The silica gel sheet is at high temperature foamed and vulcanizes is those skilled in the art's general knowledge, and in this enforcement, the plateau cure temperature of the blowing temperature of whipping agent and vulcanizing agent all is between 120～160 ℃.
Described silicon rubber is in the untreated rubber that directly buys from the market, as methyl vinyl silicone rubber, methyl phenyl vinyl silicone rubber, trifluoropropyl siloxane, ethyl silicon rubber, silazane rubber etc., obtains behind adding strengthening agent and other auxiliary agents.
Described tinting material can be bought from the market, selects the color and the kind of tinting material according to the requirement of product, and the selection of tinting material is those skilled in the art's a technology general knowledge.
The described process for preparation that is used for the composition of production foamed silica gel plate is: add the whipping agent of 3～4 weight parts, the vulcanizing agent of 1～2 weight part, the tinting material of 1 weight part at the silicon rubber of 100 parts of weight parts.
The present invention also provides a kind of production method of foamed silica gel plate, at first the described composition that is used for production foamed silica gel plate is carried out mixingly, forms rubber unvulcanizate; Calendering formation after plasticating rubber unvulcanizate evenly forms the silica gel sheet; Be covered with protective membrane; Allow the silica gel sheet in the atmospheric pressure environment of 120～160 ℃ of temperature, carry out synchronous foaming and sulfuration.
As preferably, can carry out rolling, packing to the continuous foamed silica-gel plate of a foaming and sulfuration aftershaping;
As preferably, also can carry out the continuous foamed silica-gel plate after the rolling packing again after the post cure.
Key of the present invention is selection and the moiety of described vulcanizing agent and the selection of ratio of the moiety and the ratio of described whipping agent; The plateau cure temperature basic synchronization of the blowing temperature of the whipping agent of being prepared in the present embodiment and vulcanizing agent is all between 120～160 ℃.
With use mould under high pressure to foam to compare with the sulfurized prior art, the composition of production foamed silica gel plate provided by the invention can carry out synchronous foaming and sulfuration under normal pressure, its beneficial effect has:
(1) improved the foaming efficient of whipping agent, it is big that the continuous foamed silica-gel plate of producing has an expansion ratio, the advantage that density is little, and density is less than or equal to 0.35g/cm
3
(2) do not use mould, the charging rolling does not stop continuously, can produce the long continuous jointless foamed silica gel plate of theory unlimited; And do not produce the mouth of a river, improved raw-material utilization ratio, in addition, do not use mould also to reduce labour intensity.
Embodiment
Below in conjunction with embodiment content of the present invention is described:
(1) is used for the preparation of the composition of production foamed silica gel plate
The process for preparation that is used for the composition of production foamed silica gel plate among the present invention: add the whipping agent of 3～4 weight parts, the vulcanizing agent of 1～2 weight part, the tinting material of 1 weight part at the silicon rubber of 100 weight parts.
The composition of described whipping agent and ratio be by weight:
Diisopropyl azodicarboxylate 100
Methyl vinyl silicone rubber 50～80
Vinyl silicone oil 10～30
The composition of described vulcanizing agent and ratio be by weight:
Dibenzoyl peroxide 100
Methyl vinyl silicone rubber 50～120
In institute of the present invention restricted portion, those skilled in the art can go out whipping agent and the vulcanizing agent different with the ratio of moiety in the exemplary embodiments according to above-mentioned formulated.The selection of described tinting material and use are the common practise in the present technique field, all omit the description to tinting material in the following narration.
In the exemplary embodiments, get the endpoint value and the intermediate value of the proportion of composing of each composition in the described whipping agent, make 9 kinds of whipping agents; Get the endpoint value and the intermediate value of the proportion of composing of each composition in the describedization agent, make 3 kinds of vulcanizing agents, in every kind of whipping agent in as shown in table 1 below, the vulcanizing agent of the configuration proportion of each composition the configuration proportion of each composition as shown in table 2 below.
The preparation of whipping agent: with whipping agent (1) is example, gets Diisopropyl azodicarboxylate 100 weight parts and adds methyl vinyl silicone rubber 70 weight parts, and vinyl silicone oil 30 weight parts mix.Other whipping agents are identical with the process for preparation of whipping agent (1), and configuration proportion is by the requirement preparation of table 1.
Table 1
Table 1 is continuous
| Whipping agent (7) | 100 | 80 | 30 |
| Whipping agent (8) | 100 | 80 | 10 |
| Whipping agent (9) | 100 | 80 | 20 |
The preparation of vulcanizing agent: with vulcanizing agent (first) is example, gets dibenzoyl peroxide 100 weight parts, and methyl vinyl silicone rubber 100 weight parts mix.Other vulcanizing agents are identical with the process for preparation of vulcanizing agent (first), and configuration proportion is by the requirement preparation of table 2.
Table 2
Under the identical situation of production method, the foaming effect of the foamed silica gel plate of being produced, relevant with the factor of following two aspects:
(1) fixedly in whipping agent and the vulcanizing agent under the situation of the proportion of composing of each component, in silicon rubber, adds the ratio of whipping agent and vulcanizing agent;
(2) fixedly add under the situation of ratio of whipping agent and vulcanizing agent the proportion of composing of each component in described whipping agent and the vulcanizing agent in the silicon rubber.
Therefore, it is two groups that exemplary embodiments is divided into, and selectes described whipping agent (1) and vulcanizing agent (first) for first group, changes the ratio of adding described whipping agent (1) and described vulcanizing agent (first) in the silicon rubber.Add the ratio of the vulcanizing agent (first) of the whipping agent (1) of 3～4 weight parts and 1～2 weight part prepares according to the silicon rubber in 100 weight parts, in first group of exemplary embodiments, the adding proportion of whipping agent (1) and vulcanizing agent (first) is carried out according to following table 3, is respectively embodiment 1-9.
Table 3
Second group of ratio of fixedly adding whipping agent and vulcanizing agent in the silicon rubber all prepared by the ratio of the vulcanizing agent of the whipping agent of interpolation 3.5 weight parts in the silicon rubber of 100 weight parts and 1.5 weight parts.Select in the table 13 kinds of vulcanizing agents in 9 kinds of whipping agents and the table 2 for use, form 9 * 3=27 embodiment altogether, as shown in table 4 below, be respectively embodiment 1 and embodiment 10-35.
Table 4
Table 4 is continuous
| Embodiment 30 | Whipping agent (8) | Vulcanizing agent (first) |
| Embodiment 31 | Whipping agent (8) | Vulcanizing agent (second) |
| Embodiment 32 | Whipping agent (8) | Vulcanizing agent (third) |
| Embodiment 33 | Whipping agent (9) | Vulcanizing agent (first) |
| Embodiment 34 | Whipping agent (9) | Vulcanizing agent (second) |
| Embodiment 35 | Whipping agent (9) | Vulcanizing agent (third) |
(2) production process
First group of embodiment comprises embodiment 1～9; Second group of embodiment comprises embodiment 1 and embodiment 10～35.
Embodiment 1
Implementation step:
(1) in 100 weight part silicon rubber, adds the whipping agent (1) of 3.5 weight parts, the vulcanizing agent (first) of 1.5 weight parts, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
(2) rubber unvulcanizate being put into mill plasticates;
(3) after plasticating evenly, put into multi-rolling mill, adjust roll spacing, obtain unvulcanized silica gel sheet according to needed thickness;
(4) described unvulcanized silica gel sheet is covered with protective membrane by the pressure roller machine, sends into the at the uniform velocity high temperature multi-stage type continuous tunnel furnace of running, in the environment of constant-pressure and high-temperature, carry out synchronous foaming and sulfuration and form successive foamed silica gel plate.Owing under normal pressure, foam and sulfurized, so do not need to use mould, do not foam again after not needing the silica gel sheet blocked and vulcanize, thereby can produce successive foamed silica gel plate.
Through above-mentioned operation, at the other end of high temperature multi-stage type continuous tunnel furnace with regard to output successive foamed silica gel plate.
As preferably, because in the present embodiment, the plateau cure temperature of the blowing temperature of employed whipping agent and vulcanizing agent all between 120～160 ℃, therefore, is controlled at the temperature of described high temperature multi-stage type continuous tunnel furnace between 120～160 ℃.
As preferably, can be divided into five sections of equal in length to described high temperature multi-stage type continuous tunnel furnace, in the present embodiment, every section length is 2 meters, and temperature is set to:
Fs: 125 ℃;
Subordinate phase: 130 ℃;
Phase III: 135 ℃;
Quadravalence section: 140 ℃;
Five-stage: 140 ℃.
In the high temperature multi-stage type continuous tunnel furnace overlay film silica gel sheet at the uniform velocity progressive speed be 0.1～1 meter/minute, in the present embodiment, be set to 0.5 meter/minute, among other embodiment, those skilled in the art can adjust according to required silica gel sheet thickness to be processed.Because high temperature multi-stage type continuous tunnel furnace is divided into five sections of equal in length, overlay film silica gel sheet is progressive at the uniform velocity in high temperature multi-stage type continuous tunnel furnace, so guaranteeing overlay film silica gel sheet all equated in the time through above-mentioned five stages, in the present embodiment, the time of each section by these five sections high temperature multi-stage type continuous tunnel furnaces all is 4 minutes, and the total time by high temperature multi-stage type continuous tunnel furnace is 20 minutes.
As preferably, according to actual needs, can use winder that this continuous foamed silica-gel plate is carried out rolling, in rolling severing when the certain-length,, pack at last such as 50 meters, 100 meters etc., also can not pack direct use.
As preferably, can also put into baking box to the continuous foamed silica-gel plate after the rolling and carry out post cure, to improve the intensity and the hardness of foamed silica gel plate.The temperature of baking box is controlled between 120～160 ℃, and the time of post cure is determined according to the thickness of silica-gel plate and the length of rolling.
Embodiment 2
In 100 weight part silicon rubber, add the whipping agent (1) of 3.5 weight parts, the vulcanizing agent (first) of 1 weight part, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
Other steps are with embodiment 1.
Embodiment 3
In 100 weight part silicon rubber, add the whipping agent (1) of 3.5 weight parts, the vulcanizing agent (first) of 2 weight parts, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
Other steps are with embodiment 1.
Embodiment 4
In 100 weight part silicon rubber, add the whipping agent (1) of 3 weight parts, the vulcanizing agent (first) of 1.5 weight parts, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
Other steps are with embodiment 1.
Embodiment 5
In 100 weight part silicon rubber, add the whipping agent (1) of 3 weight parts, the vulcanizing agent (first) of 1 weight part, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
Other steps are with embodiment 1.
Embodiment 6
In 100 weight part silicon rubber, add the whipping agent (1) of 3 weight parts, the vulcanizing agent (first) of 2 weight parts, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
Other steps are with embodiment 1.
Embodiment 7
In 100 weight part silicon rubber, add the whipping agent (1) of 4 weight parts, the vulcanizing agent (first) of 1.5 weight parts, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
Other steps are with embodiment 1.
Embodiment 8
In 100 weight part silicon rubber, add the whipping agent (1) of 4 weight parts, the vulcanizing agent (first) of 1 weight part, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
Other steps are with embodiment 1.
Embodiment 9
In 100 weight part silicon rubber, add the whipping agent (1) of 4 weight parts, the vulcanizing agent (first) of 2 weight parts, add the tinting material of 1 weight part again, through the mixing formation rubber unvulcanizate of mixing roll;
Other steps are with embodiment 1.
Second group of embodiment
Embodiment 10～35
According to 10～35 needed whipping agent and the vulcanizing agents of the combination selection embodiment described in the table 4, among the embodiment 10～35 all by the whipping agent that in 100 weight part silicon rubber, adds 3.5 weight parts, the vulcanizing agent of 1.5 weight parts, add the ratio preparation of the tinting material of 1 weight part again, other steps are with embodiment 1.
From above implementation process as can be seen, adopt production method disclosed in this invention, owing to be under normal pressure, the silica gel sheet to be carried out synchronous foaming and sulfuration, do not need to use mould, the charging rolling does not stop continuously, production efficiency improves greatly, can continuously produce the long non junction foamed silica gel plate of theory unlimited; And owing to do not produce the mouth of a river, utilization rate of raw materials improves greatly.In addition, owing to do not use the mould sulfidization molding, reduce labour intensity greatly.
(2) result of implementation
The density of first group of resulting foamed silica gel plate of embodiment is as shown in table 5 below.
Table 5
The density of second group of resulting foamed silica gel plate of embodiment is as shown in table 6 below.
Table 6
Table 6 is continuous
| Embodiment 16 | Whipping agent (3) | Vulcanizing agent (second) | 0.31 |
| Embodiment 17 | Whipping agent (3) | Vulcanizing agent (third) | 0.32 |
| Embodiment 18 | Whipping agent (4) | Vulcanizing agent (first) | 0.31 |
| Embodiment 19 | Whipping agent (4) | Vulcanizing agent (second) | 0.31 |
| Embodiment 20 | Whipping agent (4) | Vulcanizing agent (third) | 0.32 |
| Embodiment 21 | Whipping agent (5) | Vulcanizing agent (first) | 0.31 |
| Embodiment 22 | Whipping agent (5) | Vulcanizing agent (second) | 0.33 |
| Embodiment 23 | Whipping agent (5) | Vulcanizing agent (third) | 0.32 |
| Embodiment 24 | Whipping agent (6) | Vulcanizing agent (first) | 0.31 |
| Embodiment 25 | Whipping agent (6) | Vulcanizing agent (second) | 0.32 |
| Embodiment 26 | Whipping agent (6) | Vulcanizing agent (third) | 0.33 |
| Embodiment 27 | Whipping agent (7) | Vulcanizing agent (first) | 0.34 |
| Embodiment 28 | Whipping agent (7) | Vulcanizing agent (second) | 0.33 |
| Embodiment 29 | Whipping agent (7) | Vulcanizing agent (third) | 0.32 |
| Embodiment 30 | Whipping agent (8) | Vulcanizing agent (first) | 0.30 |
| Embodiment 31 | Whipping agent (8) | Vulcanizing agent (second) | 0.31 |
| Embodiment 32 | Whipping agent (8) | Vulcanizing agent (third) | 0.31 |
| Embodiment 33 | Whipping agent (9) | Vulcanizing agent (first) | 0.30 |
| Embodiment 34 | Whipping agent (9) | Vulcanizing agent (second) | 0.33 |
| Embodiment 35 | Whipping agent (9) | Vulcanizing agent (third) | 0.31 |
According to above result of implementation as can be seen, adopt the prescription of the composition that is used for production foamed silica gel plate disclosed by the invention and the production method of foamed silica gel plate, available continuous foamed silica-gel plate.Owing to realize that under normal pressure foaming and sulfurized process are synchronous, improved the foaming efficient of whipping agent, it is big that the continuous foamed silica-gel plate of being produced has an expansion ratio, the advantage that density is little, density is less than or equal to 0.35g/cm
3
Among the above embodiment, the selection of the configuration proportion of the ratio of interpolation whipping agent and vulcanizing agent and whipping agent and vulcanizing agent is not the restriction to content of the present invention in silicon rubber, in the framework of the present definition, those skilled in the art can prepare whipping agent and vulcanizing agent according to product requirement; Change the adding proportion of whipping agent and vulcanizing agent.
Claims (10)
1. composition that is used for production foamed silica gel plate includes by weight:
100 parts in silicon rubber
3～4 parts of whipping agents
1～2 part of vulcanizing agent
1 part of tinting material
Wherein, the composition of described whipping agent and ratio are by weight:
100 parts of Diisopropyl azodicarboxylates
50～80 parts of methyl vinyl silicone rubbers
10～30 parts of vinyl silicone oils
The composition of described vulcanizing agent and ratio be by weight:
100 parts of dibenzoyl peroxide
50～120 parts of methyl vinyl silicone rubbers.
2. the composition that is used for production foamed silica gel plate according to claim 1, it includes by weight:
100 parts in silicon rubber
3 parts of whipping agents
1.5 parts of vulcanizing agents
1 part of tinting material
Wherein, the composition of described whipping agent and ratio are by weight:
100 parts of Diisopropyl azodicarboxylates
70 parts of methyl vinyl silicone rubbers
30 parts of vinyl silicone oils
The composition of described vulcanizing agent and ratio be by weight:
100 parts of dibenzoyl peroxide
100 parts of methyl vinyl silicone rubbers.
3. the composition that is used for production foamed silica gel plate according to claim 1, it includes by weight:
100 parts in silicon rubber
3.5 parts of whipping agents
1.5 parts of vulcanizing agents
1 part of tinting material
Wherein, the composition of described whipping agent and ratio are by weight:
100 parts of Diisopropyl azodicarboxylates
70 parts of methyl vinyl silicone rubbers
30 parts of vinyl silicone oils
The composition of described vulcanizing agent and ratio be by weight:
100 parts of dibenzoyl peroxide
100 parts of methyl vinyl silicone rubbers.
4. the composition that is used for production foamed silica gel plate according to claim 1, it includes by weight:
100 parts in silicon rubber
4 parts of whipping agents
1.5 parts of vulcanizing agents
1 part of tinting material
Wherein, the composition of described whipping agent and ratio are by weight:
100 parts of Diisopropyl azodicarboxylates
70 parts of methyl vinyl silicone rubbers
30 parts of vinyl silicone oils
The composition of described vulcanizing agent and ratio be by weight:
100 parts of dibenzoyl peroxide
100 parts of methyl vinyl silicone rubbers.
5. the production method of a foamed silica gel plate is characterized in that, this production method may further comprise the steps:
1) with the described mixing even formation rubber unvulcanizate of composition that is used for production foamed silica gel plate of one of claim 1～4;
2) the described rubber unvulcanizate of plasticating;
3) rubber unvulcanizate after described the plasticating of calendering obtains the silica gel sheet;
4) described silica gel sheet is carried out overlay film;
5) the silica gel sheet behind the described overlay film is foamed under normal pressure synchronously and vulcanize and form successive foamed silica gel plate.
6. the production method of foamed silica gel plate according to claim 5 is characterized in that: also comprise the step that described successive foamed silica gel plate is carried out rolling.
7. the production method of foamed silica gel plate according to claim 6 is characterized in that: also comprise the step of the foamed silica gel plate after the described rolling being carried out post cure.
8. the production method of foamed silica gel plate according to claim 5 is characterized in that: the temperature of described synchronous foaming and sulfidation is between 120～160 ℃.
9. according to the production method of the described foamed silica gel plate of one of claim 5 to 8, it is characterized in that: described synchronous foaming and sulfidation are divided into five stages of successive, wherein:
The temperature of fs is 125 ℃;
The temperature of subordinate phase is 130 ℃;
The temperature of phase III is 135 ℃;
The temperature of quadravalence section is 140 ℃;
The temperature of five-stage is 140 ℃.
10. the production method of foamed silica gel plate according to claim 9 is characterized in that: the time in described five stages equates.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105001644A (en) * | 2015-07-22 | 2015-10-28 | 上海交通大学 | Porous elastic film and preparation method thereof |
| CN105331119A (en) * | 2015-12-08 | 2016-02-17 | 苏州市享乐惠信息科技有限公司 | Novel foamed silica gel plate |
| CN107556758A (en) * | 2017-10-02 | 2018-01-09 | 镇江市星耀智能装备有限公司 | A kind of environmentally friendly foaming plate |
| CN109295740A (en) * | 2018-09-20 | 2019-02-01 | 苏州奥科橡胶科技有限公司 | The production method of oven pad |
| CN109877218A (en) * | 2019-02-27 | 2019-06-14 | 东莞行特电子有限公司 | Punching press iron-clad manufacturing method thereof free of cleaning |
| CN110698713A (en) * | 2019-10-08 | 2020-01-17 | 浙江杰上杰新材料有限公司 | High-dispersity silica gel foaming agent and preparation method thereof |
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| CN113291027A (en) * | 2021-04-15 | 2021-08-24 | 陕西罗德建设科技有限公司 | Heat-insulation and decoration integrated plate and construction method thereof |
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| CN1673280A (en) * | 2004-03-22 | 2005-09-28 | 徐英强 | Making process silicone rubber sponge backing board |
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| CN1673280A (en) * | 2004-03-22 | 2005-09-28 | 徐英强 | Making process silicone rubber sponge backing board |
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| CN105001644A (en) * | 2015-07-22 | 2015-10-28 | 上海交通大学 | Porous elastic film and preparation method thereof |
| CN105331119A (en) * | 2015-12-08 | 2016-02-17 | 苏州市享乐惠信息科技有限公司 | Novel foamed silica gel plate |
| CN107556758A (en) * | 2017-10-02 | 2018-01-09 | 镇江市星耀智能装备有限公司 | A kind of environmentally friendly foaming plate |
| CN109295740A (en) * | 2018-09-20 | 2019-02-01 | 苏州奥科橡胶科技有限公司 | The production method of oven pad |
| CN109877218A (en) * | 2019-02-27 | 2019-06-14 | 东莞行特电子有限公司 | Punching press iron-clad manufacturing method thereof free of cleaning |
| CN110698713A (en) * | 2019-10-08 | 2020-01-17 | 浙江杰上杰新材料有限公司 | High-dispersity silica gel foaming agent and preparation method thereof |
| CN110698713B (en) * | 2019-10-08 | 2022-05-13 | 浙江杰上杰新材料有限公司 | High-dispersity silica gel foaming agent and preparation method thereof |
| CN111218117A (en) * | 2020-03-02 | 2020-06-02 | 广东安必成精密科技有限公司 | Elastic foam material, preparation method thereof and automobile skylight sunshade curtain rail limiting strip |
| CN112457672A (en) * | 2020-11-27 | 2021-03-09 | 合肥艺光高分子材料科技有限公司 | Antistatic foamed silica gel plate composition and foamed silica gel plate production method |
| CN113291027A (en) * | 2021-04-15 | 2021-08-24 | 陕西罗德建设科技有限公司 | Heat-insulation and decoration integrated plate and construction method thereof |
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| CN102220003B (en) | 2012-09-05 |
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