CN105419338A - Heat-vulcanized silicone rubber and preparation method thereof - Google Patents

Heat-vulcanized silicone rubber and preparation method thereof Download PDF

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Publication number
CN105419338A
CN105419338A CN201510864738.7A CN201510864738A CN105419338A CN 105419338 A CN105419338 A CN 105419338A CN 201510864738 A CN201510864738 A CN 201510864738A CN 105419338 A CN105419338 A CN 105419338A
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silicone rubber
vulcanized silicone
hot
parts
preparation
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Inventor
朱东海
乃学瑛
党力
吕智慧
董亚萍
李武
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Qinghai Institute of Salt Lakes Research of CAS
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Qinghai Institute of Salt Lakes Research of CAS
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    • 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
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/08—Oxygen-containing compounds
    • 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
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/004—Additives being defined by their length
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/22—Halogen free composition

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a preparation method of heat-vulcanized silicone rubber. The preparation method comprises the following steps: (A) carrying out open milling on 100 parts by weight of raw methylvinyl silicone rubber for 3-10 minutes; (B) adding 5-50 parts by weight of magnesium oxysulfate whiskers and 0.5-1 part by weight of a vulcanizing agent into the raw methylvinyl silicone rubber, mixing for 10-40 minutes until slices are formed, so as to obtain mixed slices; (C) carrying out primary vulcanization on the mixed slices, so as to obtain primary sulfide, wherein the vulcanization temperature is 165-185 DEG C, and the vulcanization time is t90; and (D) carrying out secondary vulcanization on the primary sulfide, so as to obtain secondary sulfide, wherein the vulcanization temperature is 180-220 DEG C, and the vulcanization time is 2-6 hours. The invention further discloses heat-vulcanized silicone rubber prepared by virtue of the preparation method. By taking the magnesium oxysulfate whiskers as a fire retardant, the heat-vulcanized silicone rubber is halogen free and relatively environmentally friendly; furthermore, the consumption of white carbon black is reduced or avoided, the cost is lowered, and the harm is reduced.

Description

Hot-vulcanized silicone rubber and preparation method thereof
Technical field
The invention belongs to hot-vulcanized silicone rubber preparing technical field, specifically, particularly relate to a kind of Halogen, fire-retardant hot-vulcanized silicone rubber and preparation method thereof.
Background technology
Silicon rubber has unique chemical stability, weathering resistance, resistant of high or low temperature, insulativity and physiological inertia etc., and it is all widely used in the every field of national economy.But containing a large amount of carbon and hydrogen in the molecular chain of silicon rubber, meeting naked light will sustained combustion, thus limit its application in the field such as electric wire, electric, automobile, aerospace to a certain extent.Therefore need to carry out flame-retardant modified to silicon rubber, to expand its use range.
Carrying out flame-retardant modified by interpolation fire retardant to silicon rubber is simply a kind of and effective means.In silicon rubber, the normal fire retardant added has halogenated flame retardant, magnesium aluminum hydroxide fire retardant and platinum group fire retardant etc.Halogenated flame retardant can release the toxic substances such as a large amount of hydrogen halides in silicon rubber combustion processes, larger to environmental hazard; Magnesium aluminum hydroxide fire retardant just has obvious flame retardant effect when addition is larger, but when addition is larger, the mechanical properties decrease of silicon rubber is serious, for improving its mechanical property, generally white carbon black need be added, but price is higher on the one hand for white carbon black, on the other hand because its particle diameter is nano level, easily sucks and cause silicosis during use; When platinum group fire retardant is used alone, flame retardant effect is bad, need with other fire retardant with the use of, and price is higher.
Summary of the invention
For solving above-mentioned prior art Problems existing, the invention provides a kind of hot-vulcanized silicone rubber and preparation method thereof, this hot-vulcanized silicone rubber has Halogen, fire-retardant feature.
In order to reach foregoing invention object, present invention employs following technical scheme:
A preparation method for hot-vulcanized silicone rubber, comprises step: A, get 100 parts of methyl vinyl silicon kautschuks open in two roller mill refining 3min ~ 10min; B, in the methyl vinyl silicon kautschuk in described steps A, add 5 parts ~ 50 parts magnesium oxysulfide whiskers and 0.5 part ~ 1 part vulcanizing agent, mixing 10min ~ 40min, thin-pass slice, obtain mixing thin slice; C, described mixing thin slice is placed in vulcanizing press carries out one step cure, obtain one step cure thing; The curing temperature of one step cure is 165 DEG C ~ 185 DEG C, and curing time is t 90; Wherein, described t 90refer to the time that described mixing thin slice sulfuration 90% is used; D, post vulcanization is carried out in the heating of described one step cure thing, obtain hot-vulcanized silicone rubber; The curing temperature of post vulcanization is 180 DEG C ~ 220 DEG C, and curing time is 2h ~ 6h; Wherein, described number is mass fraction.
Further, in described steps A, also comprise: the white carbon black being no more than 5 parts is mixed with described 100 parts of methyl vinyl silicon kautschuks; Wherein, described number is mass fraction.
Further, in described step B, the chemical formula of described magnesium oxysulfide whisker is 5Mg (OH) 2mgSO 43H 2o or 5Mg (OH) 2mgSO 42H 2o.
Further, the diameter of described magnesium oxysulfide whisker is 0.5 μm ~ 1 μm, and length is 10 μm ~ 50 μm.
Further, in described step B, described vulcanizing agent be selected from 2,5-dimethyl-2,5-bis-(t-butyl peroxy) hexane, di-t-butyl peroxide, dicumyl peroxide any one.
Another object of the present invention is also to provide a kind of hot-vulcanized silicone rubber, comprises following component according to the mass fraction: 100 parts of methyl vinyl silicon kautschuks, 5 parts ~ 50 parts magnesium oxysulfide whiskers and 0.5 part ~ 1 part vulcanizing agents.
Further, described hot-vulcanized silicone rubber also comprises white carbon black; Wherein, the mass fraction of described white carbon black is no more than 5 parts.
Further, the chemical formula of described magnesium oxysulfide whisker is 5Mg (OH) 2mgSO 43H 2o or 5Mg (OH) 2mgSO 42H 2o.
Further, the diameter of described magnesium oxysulfide whisker is 0.5 μm ~ 1 μm, and length is 10 μm ~ 50 μm.
Further, described vulcanizing agent is selected from any one in 2,5-dimethyl-2,5-bis-(t-butyl peroxy) hexane, di-t-butyl peroxide, dicumyl peroxide.
The present invention is using magnesium oxysulfide whisker as fire retardant, and other fire retardants added compared to existing technology, make the hot-vulcanized silicone rubber prepared have the characteristic of Halogen, environmental protection more; The use of described fire retardant magnesium oxysulfide whisker, not only makes the mechanical property of hot-vulcanized silicone rubber reach good level, also can reduce the consumption even eliminating white carbon black, thus reduce costs, and reduces harm.
Embodiment
Below, embodiments of the invention will be described in detail.But, the present invention can be implemented in many different forms, and the present invention should not be interpreted as being limited to the specific embodiment of setting forth here.On the contrary, provide these embodiments to be to explain principle of the present invention and practical application thereof, thus enable others skilled in the art understand various embodiment of the present invention and be suitable for the various amendments of certain expected application.
Present embodiments provide a kind of Halogen, fire-retardant hot-vulcanized silicone rubber, it comprises the methyl vinyl silicon kautschuk of 100 parts, is no more than the vulcanizing agent of the white carbon black of 5 parts, the magnesium oxysulfide whisker of 5 parts ~ 50 parts and 0.5 part ~ 1 part, is more than mass fraction.
Particularly, vulcanizing agent can be selected from any one in 2,5-dimethyl-2,5-bis-(t-butyl peroxy) hexane, di-t-butyl peroxide, dicumyl peroxide.
The chemical formula of magnesium oxysulfide whisker is 5Mg (OH) 2mgSO 43H 2o or 5Mg (OH) 2mgSO 42H 2o, that is, namely described magnesium oxysulfide whisker refers to 5Mg (OH) 2mgSO 43H 2o whisker or 5Mg (OH) 2mgSO 42H 2o whisker, it is as the fire retardant in described hot-vulcanized silicone rubber, be diameter is 0.5 μm ~ 1 μm, length is the whisker that some length, the thickness of 10 μm ~ 50 μm differs.
What deserves to be explained is, the outward appearance of magnesium oxysulfide whisker is staple fibre shape, and it has, and diameter is little, atomic arrangement high-sequential, almost do not have the premium propertiess such as defect; Add as when preparing hot-vulcanized silicone rubber when it is used as fire retardant, micro-enhancement can be played to hot-vulcanized silicone rubber, that is can strengthen the intensity of this hot-vulcanized silicone rubber.In addition, containing hydroxy water and crystal water in the molecule of described magnesium oxysulfide whisker, it not only can absorb heat when decomposes, and can water vapour be discharged, the water vapour discharged can dilute the concentration of flame-zone reaction thing and absorb smog, the MgO thermofin generated after its dehydration can stop other combustible materials in described hot-vulcanized silicone rubber to contact with oxygen, thus plays fire-retardant effect.Therefore, using the hot-vulcanized silicone rubber that described magnesium oxysulfide whisker prepares as a kind of fire retardant, when running into naked light and burning occurring, magnesium oxysulfide whisker is wherein namely by absorbing heat, release water vapour, forming the process implementation fire retardations such as MgO thermofin.Meanwhile, described magnesium oxysulfide whisker also has inexpensive feature, therefore also can reduce the preparation cost of described hot-vulcanized silicone rubber to a certain extent.
Be described in detail to the preparation method of described hot-vulcanized silicone rubber below.
Step one: get 100 parts of methyl vinyl silicon kautschuks and be placed in two roller mill and open refining 3min ~ 10min.
What deserves to be explained is, in described step one, also can add the white carbon black being no more than 5 parts in described 100 parts of methyl vinyl silicon kautschuks, and be placed in two roller mill and mix and open and refine 3min ~ 10min, obtain methyl vinyl silicone rubber rubber unvulcanizate.
Step 2: add 5 parts ~ 50 parts magnesium oxysulfide whiskers and 0.5 part ~ 1 part vulcanizing agent, mixing 10min, thin-pass three slices in the methyl vinyl silicon kautschuk obtained to step one or methyl vinyl silicone rubber rubber unvulcanizate, obtains mixing thin slice.
Particularly, vulcanizing agent can be any one in 2,5-dimethyl-2,5-bis-(t-butyl peroxy) hexane, di-t-butyl peroxide, dicumyl peroxide.
In the present embodiment, the 5Mg (OH) that some length that described magnesium oxysulfide whisker is diameter is 0.5 μm ~ 1 μm, length is 10 μm ~ 50 μm, thickness differ 2mgSO 43H 2o whisker or 5Mg (OH) 2mgSO 42H 2o whisker.
Above number is mass fraction.
Step 3: mixing thin slice step 2 obtained is placed in vulcanizing press, carries out one step cure t at 165 DEG C ~ 185 DEG C 90time, obtain one step cure thing.
What deserves to be explained is, in the present embodiment, one step cure time t 90represent the time needed for described mixing thin slice sulfuration 90%; In the preparation process of hot-vulcanized silicone rubber, t 90be generally considered to be the time that sizing material machines, namely mix the time that slice forming is produced in the present embodiment, t 90long expression vulcanization rate is partially slow, can cause that the hardness of the hot-vulcanized silicone rubber prepared is low, to produce effect low.
Step 4: one step cure thing is placed in baking oven, heats 2h ~ 6h, carries out post vulcanization, obtain hot-vulcanized silicone rubber at 180 DEG C ~ 220 DEG C.
Below, with reference to specific embodiment, the component of hot-vulcanized silicone rubber according to the present invention and preparation method are described in detail, contrast for convenience of to the component of each embodiment and experiment parameter, analyze each embodiment of contrast in table form; The component of the hot-vulcanized silicone rubber in embodiment 1-5 and the comparing result prepared under different experiments parameter are respectively as shown in Table 1 and Table 2.
Table 1 is according to the Comparative of the hot-vulcanized silicone rubber of embodiments of the invention 1-5
Note: " magnesium oxysulfide whisker *" represent in described embodiment 1-5 be diameter is 0.5 μm ~ 1 μm, length is 10 μm ~ 50 μm some length, 5Mg (OH) that thickness differs 2mgSO 43H 2o whisker.
Table 2 is according to the preparation experiment parameter comparison of embodiments of the invention 1-5
Note: " magnesium oxysulfide whisker *" represent in described embodiment 1-5 be diameter is 0.5 μm ~ 1 μm, length is 10 μm ~ 50 μm some length, 5Mg (OH) that thickness differs 2mgSO 43H 2o whisker.
When preparing hot-vulcanized silicone rubber, white carbon black can strengthen the mechanical property of described hot-vulcanized silicone rubber, meanwhile, because it is non-combustible material, also can play fire-retardant effect to a certain extent.
Certainly, as the vulcanizing agent in hot-vulcanized silicone rubber preparation process, it is not limited to 2,5-dimethyl-2,5-bis-(t-butyl peroxy) hexanes in embodiment 1-5, can also be that other are as di-t-butyl peroxide, dicumyl peroxide etc.; Meanwhile, the 5Mg (OH) in above-described embodiment 1-5 is also not limited to as the magnesium oxysulfide whisker of fire retardant 2mgSO 43H 2o whisker can also be 5Mg (OH) 2mgSO 42H 2o whisker.
Measure the tensile strength of the hot-vulcanized silicone rubber that above-described embodiment 1-5 prepares, elongation at break and oxygen index respectively, measurement result is as shown in table 3.
Table 3 is according to the performance comparison of the hot-vulcanized silicone rubber of embodiments of the invention 1-5
Embodiment Tensile strength/MPa Elongation at break/% Oxygen index/%
Embodiment 1 3.65 451 25.1
Embodiment 2 5.19 492 27.5
Embodiment 3 6.10 486 29.8
Embodiment 4 5.06 443 32.0
Embodiment 5 5.60 475 25.8
In hot-vulcanized silicone rubber, tensile strength and elongation at break larger, show that the mechanical property of described hot-vulcanized silicone rubber is better, and oxygen index is larger, shows that the flame retardant properties of described hot-vulcanized silicone rubber is better.In hot-vulcanized silicone rubber, the tensile strength of universal hot-vulcanized silicone rubber is generally 3.9MPa ~ 7.8MPa, the elongation at break of high anti-tear type hot-vulcanized silicone rubber is generally 400% ~ 600%, as can be seen here, the hot-vulcanized silicone rubber in embodiments of the invention all reaches the level of prior art in tensile strength and elongation at break; And the oxygen index of hot-vulcanized silicone rubber in this enforcement also close to 30% good level, therefore the hot-vulcanized silicone rubber of the present embodiment not only has good flame retardant effect, and possesses excellent mechanical property.Meanwhile, the magnesium oxysulfide whisker adopted in the present embodiment also has inexpensive advantage, while ensureing that hot-vulcanized silicone rubber has above-mentioned performance, also can reduce preparation cost.
The tensile strength of the hot-vulcanized silicone rubber that comparative example 2 and embodiment 5 obtain, elongation at break and oxygen index, find that each parameter in the present embodiment 2 and each parameter in embodiment 5 are in same level substantially, and comparative example 2 and the component of embodiment 5 can find, in embodiment 2 when ensureing that other components are constant, 50g white carbon black is instead of with 50g magnesium oxysulfide whisker, illustrate that the hot-vulcanized silicone rubber of the present embodiment 2 is when replacing white carbon black with the magnesium oxysulfide whisker of equivalent, still can reach good mechanical property and flame retardant effect, that is, in described embodiment, the use of magnesium oxysulfide whisker can reduce the consumption even eliminating white carbon black, the cost that the use avoiding white carbon black brings is high and endanger large problem.
Contrast experiment
This contrast experiment is intended to by the contrast with embodiment, obtains magnesium oxysulfide whisker as the impact of fire retardant on the performance of hot-vulcanized silicone rubber.
Embodiment 1 has been carried out to the control experiment of contrast experiment 1, namely the experiment condition of contrast experiment 1 is corresponding with the experiment condition of embodiment 1 respectively, just in implementation process, does not add magnesium oxysulfide whisker (5Mg (OH) in contrast experiment 1 2mgSO 43H 2o whisker) as fire retardant.The experimental result of contrast experiment 1 and the Comparative result of embodiment 1 are in table 4.
The experimental result of table 4 contrast experiment 1 and the Comparative result of embodiment 1
Tensile strength/MPa Elongation at break/% Oxygen index/%
Contrast experiment 1 2.81 429 23.4
Embodiment 1 3.65 451 25.1
Contrast the tensile strength of the hot-vulcanized silicone rubber that contrast experiment 1 obtains with embodiment 1, elongation at break and oxygen index, find that the parameter in the present embodiment 1 is all larger compared with the parameter in contrast experiment 1, illustrate that the hot-vulcanized silicone rubber of the present embodiment 1 has better mechanical property and flame retardant effect.
Hot-vulcanized silicone rubber is using magnesium oxysulfide whisker as fire retardant according to an embodiment of the invention, has prepared Halogen, fire-retardant hot-vulcanized silicone rubber; Described fire retardant magnesium oxysulfide whisker not only can make described hot-vulcanized silicone rubber have good flame retardant effect and excellent mechanical property; Meanwhile, compared to the hot-vulcanized silicone rubber using white carbon black general in prior art, the use of described fire retardant magnesium oxysulfide whisker reduces the consumption even eliminating white carbon black, not only can reduce preparation cost, also reduce the pollution and harm of white carbon black in preparation process.
Although illustrate and describe the present invention with reference to specific embodiment, but it should be appreciated by those skilled in the art that: when not departing from the spirit and scope of the present invention by claim and equivalents thereof, the various changes in form and details can be carried out at this.

Claims (10)

1. a preparation method for hot-vulcanized silicone rubber, is characterized in that, comprises step:
A, get 100 parts of methyl vinyl silicon kautschuks open in two roller mill refining 3min ~ 10min;
B, in the methyl vinyl silicon kautschuk in described steps A, add 5 parts ~ 50 parts magnesium oxysulfide whiskers and 0.5 part ~ 1 part vulcanizing agent, mixing 10min ~ 40min, thin-pass slice, obtain mixing thin slice;
C, described mixing thin slice is placed in vulcanizing press carries out one step cure, obtain one step cure thing; The curing temperature of one step cure is 165 DEG C ~ 185 DEG C, and curing time is t 90; Wherein, described t 90refer to the time that described mixing thin slice sulfuration 90% is used;
D, post vulcanization is carried out in the heating of described one step cure thing, obtain hot-vulcanized silicone rubber; The curing temperature of post vulcanization is 180 DEG C ~ 220 DEG C, and curing time is 2h ~ 6h;
Wherein, described number is mass fraction.
2. preparation method according to claim 1, is characterized in that, in described steps A, also comprises: mixed with described 100 parts of methyl vinyl silicon kautschuks by the white carbon black being no more than 5 parts; Wherein, described number is mass fraction.
3. preparation method according to claim 1 and 2, is characterized in that, in described step B, the chemical formula of described magnesium oxysulfide whisker is 5Mg (OH) 2mgSO 43H 2o or 5Mg (OH) 2mgSO 42H 2o.
4. preparation method according to claim 3, is characterized in that, the diameter of described magnesium oxysulfide whisker is 0.5 μm ~ 1 μm, and length is 10 μm ~ 50 μm.
5. preparation method according to claim 4, is characterized in that, in described step B, described vulcanizing agent be selected from 2,5-dimethyl-2,5-bis-(t-butyl peroxy) hexane, di-t-butyl peroxide, dicumyl peroxide any one.
6. a hot-vulcanized silicone rubber, is characterized in that, is obtained: 100 parts of methyl vinyl silicon kautschuks, 5 parts ~ 50 parts magnesium oxysulfide whiskers and 0.5 part ~ 1 part vulcanizing agents by following component according to the mass fraction through mixing, sulfuration.
7. hot-vulcanized silicone rubber according to claim 6, is characterized in that, described hot-vulcanized silicone rubber also comprises white carbon black; Wherein, the mass fraction of described white carbon black is no more than 5 parts.
8. the hot-vulcanized silicone rubber according to claim 6 or 7, is characterized in that, the chemical formula of described magnesium oxysulfide whisker is 5Mg (OH) 2mgSO 43H 2o or 5Mg (OH) 2mgSO 42H 2o.
9. hot-vulcanized silicone rubber according to claim 8, is characterized in that, the diameter of described magnesium oxysulfide whisker is 0.5 μm ~ 1 μm, and length is 10 μm ~ 50 μm.
10. hot-vulcanized silicone rubber according to claim 9, is characterized in that, described vulcanizing agent be selected from 2,5-dimethyl-2,5-bis-(t-butyl peroxy) hexane, di-t-butyl peroxide, dicumyl peroxide any one.
CN201510864738.7A 2015-11-30 2015-11-30 Heat-vulcanized silicone rubber and preparation method thereof Pending CN105419338A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110041708A (en) * 2019-03-20 2019-07-23 肇庆皓明有机硅材料有限公司 A kind of battery modules are flexible coupling protective case and its preparation process
WO2020183029A1 (en) * 2019-03-14 2020-09-17 Sika Technology Ag Thermally expandable compositions and use thereof in welding sealer tapes

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424725A (en) * 2011-11-29 2012-04-25 四川大学 High-temperature resistant and erosion resistant rubber composition and preparation method thereof
CN102757652A (en) * 2012-07-20 2012-10-31 青岛闻奇工艺品有限公司 Environment-friendly flame-retardant silicone rubber and preparation method thereof
CN104312154A (en) * 2014-09-19 2015-01-28 天长市荣盛有机硅科技有限公司 Low temperature resistant silicone rubber material and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424725A (en) * 2011-11-29 2012-04-25 四川大学 High-temperature resistant and erosion resistant rubber composition and preparation method thereof
CN102757652A (en) * 2012-07-20 2012-10-31 青岛闻奇工艺品有限公司 Environment-friendly flame-retardant silicone rubber and preparation method thereof
CN104312154A (en) * 2014-09-19 2015-01-28 天长市荣盛有机硅科技有限公司 Low temperature resistant silicone rubber material and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020183029A1 (en) * 2019-03-14 2020-09-17 Sika Technology Ag Thermally expandable compositions and use thereof in welding sealer tapes
CN113474399A (en) * 2019-03-14 2021-10-01 Sika技术股份公司 Thermally expandable composition and use thereof in weld sealing tapes
CN113474399B (en) * 2019-03-14 2023-07-25 Sika技术股份公司 Thermally expandable composition and use thereof in welding sealing strips
CN110041708A (en) * 2019-03-20 2019-07-23 肇庆皓明有机硅材料有限公司 A kind of battery modules are flexible coupling protective case and its preparation process

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Application publication date: 20160323