CN104817846A - High-density room-temperature-vulcanizing double-component silicone rubber - Google Patents
High-density room-temperature-vulcanizing double-component silicone rubber Download PDFInfo
- Publication number
- CN104817846A CN104817846A CN201510229097.8A CN201510229097A CN104817846A CN 104817846 A CN104817846 A CN 104817846A CN 201510229097 A CN201510229097 A CN 201510229097A CN 104817846 A CN104817846 A CN 104817846A
- Authority
- CN
- China
- Prior art keywords
- component
- silicone rubber
- density
- self cure
- component silicone
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
High-density room-temperature-vulcanizing double-component silicone rubber is composed of an A component and a B component, wherein the A component comprises 10-40% of polysiloxane, 30-70% of high-density nonmetal powder, 5-35% of a flame retarding agent, 0.2-5% of a dispersing agent, 1-10% of a reinforcing filling material, and 1-5% of a crosslinking agent; and the B component comprises 10-40% of polysiloxane, 30-70% of high-density nonmetal powder, 5-35% of a flame retarding agent, 0.2-5% of a dispersing agent, 1-10% of a reinforcing filling material, and 0.1-1% of a catalyst. The two components are respectively placed in two connected individual cylindrical containers of a double-component rubber bottle, wherein tail parts of the cylindrical containers are sealed with pistons. When the silicone rubber is used, the two pistons are pushed by a rubber gun to extrude the two components at the same time so that the two components are mixed through a static mixer installed at an outlet. The method is free of toxic or strong-activity metal powders and can be used for preparing the silicone rubber being more stable and durable in performance. In addition, the particle sizes of metal oxide powder and sulfuric acid compound powder can be small enough easily, so that when being used for filling the silicone rubber, the physical and mechanical performances of the silicone rubber can be maintained better. The double-component rubber bottle is filled with the two components, by that the method simplifies construction, is better in mixing effect and is free of influence by manual factor on construction quality.
Description
Technical field
The present invention relates to a kind of two component silica gel of the high-density with better shielding gamma ray function for gamma ray place, belong to high molecule sealing materials field.
Background technology
Because the demand of environment protection and clean energy; China is greatly developing the construction of nuclear power station at present; most material require dependence on import of the construction of nuclear power station, wherein has a kind of sealing material of the perforate in Nuclear power plants building structure, has the functions such as fire prevention, waterproof, nucleus screening.1982.12.27 B & B Insulation, Inc. company's application number be 4436868 United States Patent (USP) disclose a kind of two-component silicone rubber containing lead powder first, Promatec company accordingly patent production product commodity is called Radflex, and this company produces again the like product substituting lead powder with iron powder subsequently.A large amount of filling lead powder and iron powder impart the higher density of seal gum, are generally greater than 2.35g/cm
3, because of its high-density, there is good nucleus screening effect, in a large number for Nuclear power plants.Chinese patent 2010101643560,2011103942792,201110368015X all discloses based on the similar technique of the metal-powder such as lead powder, iron powder, do not have too large technological innovation, performance does not surmount imported product.
There are the following problems for prior art: first, and present lead powder prohibits the use because it there is the danger of infringement people health; Second, other metal-powders such as iron powder are because hardness is high and activity is difficult to by force reach thinner particle diameter, generally be not less than 45 microns, a large amount of Large stone is powder filled significantly can reduce its physical and mechanical properties in high score material, be not well positioned to meet service requirements, some chemical methods produce metal-powder, as carbonyl iron dust, particle diameter can reach 5 microns, but its price is very expensive; 3rd, two components mainly take out by manually admixed together by the construction of this series products at the scene at present, construction trouble, bad control mixed effect, thus produce bad impact to construction quality.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of safety, performance is better, cost is lower, the high-density self cure two-component silicone rubber of easy construction.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of high-density self cure two-component silicone rubber, is made up of component A and B component.Component A comprises 10% ~ 40%(weight percent, lower with) polysiloxane, the high density non-metal powder of 30% ~ 70%, the fire retardant of 5 ~ 35%, the dispersion agent of 0.2 ~ 5%, the reinforced filling of 1 ~ 10%, the linking agent of 1% ~ 5%.B component comprises 10% ~ 40%(weight percent, lower with) polysiloxane, the high density non-metal powder of 30% ~ 70%, the fire retardant of 5 ~ 35%, the dispersion agent of 0.2 ~ 5%, the reinforced filling of 1 ~ 10%, the catalyzer of 0.1% ~ 1%.
Described polysiloxane is one or both combinations in hydroxy-terminated polysiloxane, end-vinyl polysiloxane.Hydroxy-terminated polysiloxane has hydroxyl-terminated injecting two methyl siloxane, terminal hydroxy group PSI etc., and end-vinyl polysiloxane has end-vinyl polydimethylsiloxane, end-vinyl PSI etc.Under room temperature, hydroxy-terminated polysiloxane and linking agent Union carbide A-162, tetraethoxy react and solidify under the effect of organotin catalysts; End-vinyl polysiloxane and linking agent methyl hydrogen siloxane react and solidify under the effect of platinum catalyst.
Described high density non-metal powder is the combination of one or more in zinc oxide, titanium dioxide, ferric oxide, Z 250, cupric oxide, antimonous oxide, aluminium sesquioxide, magnesium oxide, barium sulfate, copper sulfate, ferric sulfate.
Described reinforced filling is one or both combinations in aerosil, precipitated silica, calcium carbonate, silicon powder.
Described linking agent is the one or more combination in Union carbide A-162, tetraethoxy, methyl hydrogen siloxane.
Described fire retardant be the combination of one or more in aluminium hydroxide, magnesium hydroxide, polyphosphoric acid amine, trimeric cyanamide, red phosphorus.
Described catalyzer is one or both combinations in platinum catalyst, organotin catalysts.
Described a kind of high-density self cure two-component silicone rubber, mixes in the ratio of A:B=0.1:1 ~ 1:0.1 in use, and curing molding within a certain period of time after mixing, preferred ratio is A:B=0.1:1.
Described a kind of high-density self cure two-component silicone rubber, its density is greater than 2.00g/cm
3, be preferably greater than 2.35 g/cm
3, in most cases, be greater than 2.35 g/cm
3the requirement that Nuclear power plants shields for gamma ray can be met.
Described a kind of high-density self cure two-component silicone rubber, A, B component are loaded in the connected independent cylindrical vessel (1,2) of two of two component bottle respectively, and afterbody has piston (3) to seal, extrude A, B component with glue rifle, by being contained in the static mixer mixing of outlet during use simultaneously.
An innovative point of the present invention is with high density metal oxide and sulphate powder as the filler giving product high-density characteristic, and beneficial effect avoids using poisonous or active strong metal-powder, obtains the more stable and lasting product of performance; In addition, metal oxide and sulphate powder can the enough little particle diameters of easier acquisition, when being filled in silicon rubber in a large number, can keep the physical and mechanical properties of silicon rubber greatly.Second innovative point is that the A of high-density self cure two-component silicone rubber, B component is filling with two component pipe, and its benefit brought is a simplified that construction, mixed effect are better, construction quality is not affected by human factors.
Embodiment
Below in conjunction with specific examples, the present invention is described further.
Embodiment 1
Component A by 20.5% terminal hydroxy group dimethione (107 silicon rubber, viscosity 2000cst), the zinc oxide of 60%, the aluminium hydroxide of 12%, the dispersion agent of 1%, the aerosil of 5%, the linking agent of 1.5%.B component comprises the terminal hydroxy group dimethione of 21.3%, the ferric oxide (iron oxide red) of 60%, the aluminium hydroxide of 12%, the dispersion agent of 1%, the aerosil of 5%, the tetraethoxy of 0.5%, the isopropyl alcohol solution of chloroplatinic acid (platinum content 3%) of 0.2%.
A, B component are respectively charged in two component bottle, extrude and be placed in mould, reaction sample preparation, after it solidifies, maintenance is measured for 7 days.Sample 1,200mm × 200mm × 50mm sample, surveys its density and the shielding properties to Co-60 Gamma ray.Tensile strength surveyed by sample 2,13mm × 6mm × 2mm dumbbell shape sample.The results are shown in Table 1.
Embodiment 2
Change the terminal hydroxy group dimethione in embodiment 1 into end-vinyl polydimethylsiloxane, linking agent changes the methyl hydrogen siloxane of amorous amount 1.6% into.All the other are constant.Sample preparation test result is listed in table 1.
Embodiment 3
By zinc oxide replacing 30% one-tenth antimonous oxide of 60% in embodiment 1 and the barium sulfate of 30%.All the other are constant.Sample preparation test result is listed in table 1.
Embodiment 4
Terminal hydroxy group dimethione in embodiment 1 is reduced to 18%, and zinc oxide is increased to 62%, and all the other are constant.Sample preparation test result is listed in table 1.
Table 1, the test result of embodiment, nuclear radiation shield usefulness is evaluated according to 120s Gamma radiation integral dose before and after applying shielding material, and unit is u Gy.
Claims (10)
1. a high-density self cure two-component silicone rubber, is characterized in that, is made up of component A and B component; Component A comprises 10% ~ 40%(weight percent, lower with) polysiloxane, the high density non-metal powder of 30% ~ 70%, the fire retardant of 5 ~ 35%, the dispersion agent of 0.2 ~ 5%, the reinforced filling of 1 ~ 10%, the linking agent of 1% ~ 5%; B component comprises the polysiloxane of 10% ~ 40%, the high density non-metal powder of 30% ~ 70%, the fire retardant of 5 ~ 35%, the dispersion agent of 0.2 ~ 5%, the reinforced filling of 1 ~ 10%, the catalyzer of 0.1% ~ 1%.
2. a kind of high-density self cure two-component silicone rubber according to claim 1, is characterized in that, polysiloxane is one or both combinations in hydroxy-terminated polysiloxane, end-vinyl polysiloxane.
3. a kind of high-density self cure two-component silicone rubber according to claim 1, it is characterized in that, high density non-metal powder is the combination of one or more in zinc oxide, titanium dioxide, ferric oxide, Z 250, cupric oxide, antimonous oxide, aluminium sesquioxide, magnesium oxide, barium sulfate, copper sulfate, ferric sulfate.
4. a kind of high-density self cure two-component silicone rubber according to claim 1, is characterized in that, reinforced filling is the combination of one or more in aerosil, precipitated silica, calcium carbonate, silicon powder.
5. a kind of high-density self cure two-component silicone rubber according to claim 1, is characterized in that, linking agent is the combination of one or more in Union carbide A-162, tetraethoxy, methyl hydrogen siloxane.
6. a kind of high-density self cure two-component silicone rubber according to claim 1, is characterized in that, fire retardant is the combination of one or more in aluminium hydroxide, magnesium hydroxide, polyphosphoric acid amine, trimeric cyanamide, red phosphorus.
7. a kind of high-density self cure two-component silicone rubber according to claim 1, is characterized in that, catalyzer is one or both combinations in platinum catalyst, organotin catalysts.
8. a kind of high-density self cure two-component silicone rubber according to claim 1, is characterized in that, mix in use in the ratio of A:B=0.1:1 ~ 1:0.1, after mixing in 24 hours curing molding.
9. a kind of high-density self cure two-component silicone rubber according to claim 8, it is characterized in that, the density after curing molding is greater than 2.00g/cm
3.
10. a kind of high-density self cure two-component silicone rubber according to claim 1, it is characterized in that, A, B component are loaded in the connected independent cylindrical vessel of two of two component bottle respectively, cylindrical vessel afterbody has piston packing, promote two pistons with glue rifle during use simultaneously and extrude A, B component, by being contained in static mixer mixing A, the B component of outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510229097.8A CN104817846A (en) | 2015-05-07 | 2015-05-07 | High-density room-temperature-vulcanizing double-component silicone rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510229097.8A CN104817846A (en) | 2015-05-07 | 2015-05-07 | High-density room-temperature-vulcanizing double-component silicone rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104817846A true CN104817846A (en) | 2015-08-05 |
Family
ID=53728339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510229097.8A Pending CN104817846A (en) | 2015-05-07 | 2015-05-07 | High-density room-temperature-vulcanizing double-component silicone rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104817846A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587183A (en) * | 2018-04-12 | 2018-09-28 | 东莞太洋橡塑制品有限公司 | High tough fire resistant fluid state silica gel and its manufacturing method |
| CN108976806A (en) * | 2018-06-01 | 2018-12-11 | 贵州电网有限责任公司 | A kind of moisture-proof plugging material of nonfluid and preparation method thereof |
| CN109486198A (en) * | 2018-11-29 | 2019-03-19 | 深圳市东信硅材料有限公司 | A kind of high-density fire-proof silicone adhesive and its preparation process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768362A (en) * | 2010-01-12 | 2010-07-07 | 山东大学 | Condensed room temperature vulcanized silicone rubber with radiation-resistant property and preparation method thereof |
| CN102627860A (en) * | 2012-04-10 | 2012-08-08 | 邵成芬 | Flame-retardant, high-heat-conductivity, high-temperature-resistant and low-temperature-resistant addition organic silicon rubber and preparation method thereof |
| CN104530715A (en) * | 2014-12-26 | 2015-04-22 | 江苏天辰新材料有限公司 | High temperature-resisting room temperature vulcanized silicone rubber and preparation method thereof |
-
2015
- 2015-05-07 CN CN201510229097.8A patent/CN104817846A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768362A (en) * | 2010-01-12 | 2010-07-07 | 山东大学 | Condensed room temperature vulcanized silicone rubber with radiation-resistant property and preparation method thereof |
| CN102627860A (en) * | 2012-04-10 | 2012-08-08 | 邵成芬 | Flame-retardant, high-heat-conductivity, high-temperature-resistant and low-temperature-resistant addition organic silicon rubber and preparation method thereof |
| CN104530715A (en) * | 2014-12-26 | 2015-04-22 | 江苏天辰新材料有限公司 | High temperature-resisting room temperature vulcanized silicone rubber and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587183A (en) * | 2018-04-12 | 2018-09-28 | 东莞太洋橡塑制品有限公司 | High tough fire resistant fluid state silica gel and its manufacturing method |
| CN108976806A (en) * | 2018-06-01 | 2018-12-11 | 贵州电网有限责任公司 | A kind of moisture-proof plugging material of nonfluid and preparation method thereof |
| CN109486198A (en) * | 2018-11-29 | 2019-03-19 | 深圳市东信硅材料有限公司 | A kind of high-density fire-proof silicone adhesive and its preparation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104817846A (en) | High-density room-temperature-vulcanizing double-component silicone rubber | |
| CN1047393C (en) | Low expansion polymeric compositions | |
| CN108192548A (en) | Permanent seal cooling epoxy resin caulking material and preparation method thereof | |
| CN105670158A (en) | Radiation-proof polyvinyl chloride material | |
| JPH03244626A (en) | Epoxy resin powder composition | |
| CN101560291A (en) | Saturated carboxyl polyester resin with low acid value for powder coating and synthetic method thereof | |
| CN107099148B (en) | Ultrahigh-density room-temperature-vulcanized bi-component fireproof silicone rubber and preparation method thereof | |
| US3446741A (en) | Insulating device,composition,and method | |
| Ni et al. | Preparation and properties of the fast-curing γ-ray-shielding materials based on polyurethane | |
| CN107674547B (en) | A kind of two-step method low temperature consolidates magnet ring special powder and preparation method thereof fastly | |
| CN108841139A (en) | Polymer moisture-proof plugging material and preparation method | |
| CN105061728B (en) | Modifying method of solid epoxy resin | |
| CN107090162A (en) | A kind of power distribution station electric power cabinet glass steel surface plate material and preparation method thereof | |
| JP3643798B2 (en) | Neutron shielding material composition, shielding material and container | |
| CN109161203A (en) | A kind of radiation hardness job that requires special skills graphene compounded rubber and preparation method | |
| CN108315007A (en) | A kind of radioactive label fracturing propping agents and preparation method thereof that "dead" dust generates | |
| US20040147652A1 (en) | Novel radiation attenuating material and method for making same | |
| CN109535792B (en) | Interior wall environment-friendly coating and preparation method thereof | |
| WO2023282545A1 (en) | Lead-free gamma radiation shielding sheet and manufacturing method therefor | |
| JP4592232B2 (en) | Neutron shielding material composition, shielding material and container | |
| JP6313684B2 (en) | Radiation shielding resin composition, radiation shielding resin material, and radiation shielding resin molding | |
| JP2014182055A (en) | Organic inorganic composite | |
| CN102485811A (en) | Dual component curing type putty for mixed nuclear radiation environment | |
| CN106833290B (en) | Thermal neutron shielding coating and preparation method thereof | |
| ES2547892T3 (en) | Conductive sealant compositions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160810 Address after: 213251 Jiangsu city of Changzhou province Jintan District Town Industrial District Road No. 98 Applicant after: JIANGSU WUXIN NEW MATERIAL TECHNOLOGY CO., LTD. Address before: 231400 No. three South Road, Tongcheng Economic Development Zone, Anqing, Anhui Applicant before: Novel material company limited is believed in Anhui five |
|
| CB02 | Change of applicant information |
Address after: 213251 Jiangsu city of Changzhou province Jintan District Town Industrial District Road No. 98 Applicant after: Jiangsu five letter new materials Polytron Technologies Inc Address before: 213251 Jiangsu city of Changzhou province Jintan District Town Industrial District Road No. 98 Applicant before: JIANGSU WUXIN NEW MATERIAL TECHNOLOGY CO., LTD. |
|
| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150805 |