CN112143229A - Preparation method of boron-containing shielding composite material - Google Patents
Preparation method of boron-containing shielding composite material Download PDFInfo
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- CN112143229A CN112143229A CN201910563743.2A CN201910563743A CN112143229A CN 112143229 A CN112143229 A CN 112143229A CN 201910563743 A CN201910563743 A CN 201910563743A CN 112143229 A CN112143229 A CN 112143229A
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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
- C08K7/10—Silicon-containing compounds
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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
Abstract
The invention discloses a preparation method of a boron-containing shielding composite material, which comprises the following steps: preparing epoxy modified organic silicon resin; the second step is that: preparing a mixed material; the third step: and (5) curing the composite material. The beneficial effects are that: the boron-containing shielding composite material takes epoxy modified organic silicon resin as a matrix and takes chopped quartz fiber and B4Compared with the prior art, the composite material has good neutron shielding performance, higher elastic modulus, tensile strength and excellent high temperature resistance. The boron-containing shielding composite material has an application prospect in nuclear protection materials of facilities such as reactors, accelerators, neutron sources and the like.
Description
Technical Field
The invention belongs to a preparation method of a shielding material, and particularly relates to a preparation method of a boride-containing resin-based composite material.
Background
In recent years, development has been progressing at home and abroadLead-boron polyethylene, boron-containing stainless steel and Al-B are designed4C alloy is a series of light and efficient polymer matrix composite materials and high-strength and high-modulus metal matrix composite materials represented by the C alloy. However, the lead-boron polyethylene has poor mechanical properties, has good radiation shielding effect and cannot be used in engineering at present; the boron-containing stainless steel has high strength, but the solubility of boron in the stainless steel is low, and the shielding performance is insufficient; Al-B4The C alloy has good thermal neutron absorption performance, can be used for engineering structural materials, and has the defect of complex preparation process. The epoxy resin has the advantages of radiation resistance, corrosion resistance, capability of prolonging the service time of the shielding material and the like, is applied to the radiation protection field, and is prepared by mixing the epoxy resin with B4The preparation of novel shielding materials with certain mechanical properties by combining C is urgently needed in the fields of nuclear power and nuclear power.
Disclosure of Invention
The invention aims to provide a preparation method of a boron-containing shielding composite material, which can meet the use requirement of a function/structure integrated radiation shielding material in the nuclear industry.
The technical scheme of the invention is as follows: a method for preparing a boron-containing shielding composite material comprises the following steps,
the first step is as follows: preparing epoxy modified organic silicon resin;
the second step is that: preparing a mixed material;
the third step: and (5) curing the composite material.
The first step is to mix 100-110 parts of epoxy resin, 100-120 parts of organic silicon intermediate, 40-50 parts of reactive diluent, 5-10 parts of silane coupling agent, 2-5 parts of accelerant, 4-5 parts of dispersing agent and 80-100 parts of polyether amine curing agent, and stir at the rotating speed of 100-200 r/min for 10-15 min.
The second step is that 100-125 parts of prepared epoxy modified organic silicon resin and B415-30 parts of C whiskers and 6-20 parts of chopped quartz fibers are mixed and uniformly mixed in a kneading machine.
And the third step is that the mixed material prepared in the second step is placed into a mold with specified specification and size, the mixed material is cured for 2-3 h at the temperature of 60 +/-5 ℃, then cured for 5-7 h at the temperature of 80 +/-5 ℃, and the composite material member is obtained after the temperature is reduced to room temperature and the mold is removed.
The accelerator in the first step is DMP 30.
The dispersant in the first step is BYK 161.
The invention has the beneficial effects that: the boron-containing shielding composite material takes epoxy modified organic silicon resin as a matrix and takes chopped quartz fiber and B4Compared with the prior art, the composite material has good neutron shielding performance, higher elastic modulus, tensile strength and excellent high temperature resistance. The boron-containing shielding composite material has an application prospect in nuclear protection materials of facilities such as reactors, accelerators, neutron sources and the like.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
A preparation method of a boron-containing shielding composite material comprises the following steps:
the first step is as follows: preparing epoxy modified organic silicon resin
Mixing 100-110 parts of epoxy resin, 100-120 parts of an organic silicon intermediate, 40-50 parts of a reactive diluent, 5-10 parts of a silane coupling agent, 2-5 parts of a DMP-30 accelerator, 4-5 parts of a BYK-161 dispersant and 80-100 parts of a polyether amine curing agent, and stirring at the rotating speed of 100-200 r/min for 10-15 min.
Wherein DMP30 is 2, 4, 6 is the abbreviation of tris (dimethylaminomethyl) phenol, BYK161 is the specification brand of a dispersant product.
The second step is that: preparing mixed materials
100-125 parts of epoxy modified organic silicon resin prepared in the first step and B415-30 parts of C whiskers and 6-20 parts of chopped quartz fibers are mixed and uniformly mixed in a kneading machine.
The third step: curing of composite materials
And (3) putting the mixed material prepared in the second step into a mold with specified specification and size, curing at the temperature of 60 +/-5 ℃ for 2-3 h, curing at the temperature of 80 +/-5 ℃ for 5-7 h, cooling to room temperature, and removing the mold to obtain the composite material member.
Example 1:
the preparation method of the boron-containing shielding composite material comprises the following specific steps:
the first step is as follows: preparing epoxy modified organic silicon resin
100 parts of epoxy resin, 100 parts of organosilicon intermediate, 40 parts of reactive diluent, 5 parts of silane coupling agent, 2 parts of DMP-30 accelerator, 4 parts of BYK-161 dispersing agent and 80 parts of polyether amine curing agent are mixed and stirred for 10min at the rotating speed of 100/min.
The second step is that: preparing mixed materials
100 parts of epoxy modified organic silicon resin prepared in the first step and B430 parts of C whiskers and 2 parts of chopped quartz fibers are mixed and uniformly mixed in a kneader.
The third step: curing of composite materials
And (3) putting the mixed material prepared in the second step into a mold with specified specification and size, curing at 55 ℃ for 2h, curing at 75 ℃ for 5h, cooling to room temperature, and removing the mold to obtain the composite material member.
Thus, the preparation of the boron-containing shielding composite material is completed.
Example 2:
the preparation method of the boron-containing shielding composite material comprises the following specific steps:
the first step is as follows: preparing epoxy modified organic silicon resin
110 parts of epoxy resin, 120 parts of organosilicon intermediate, 50 parts of reactive diluent, 10 parts of silane coupling agent, 5 parts of DMP-30 accelerator, 4 parts of BYK-161 dispersing agent and 80 parts of polyether amine curing agent are mixed and stirred for 15min at the rotating speed of 200 r/min.
The second step is that: preparing mixed materials
125 parts of epoxy modified organic silicon resin prepared in the first step and B420 parts of C whiskers and 15 parts of chopped quartz fibers are mixed and uniformly mixed in a kneader.
The third step: curing of composite materials
And (3) putting the mixed material prepared in the second step into a mold with specified specification and size, curing at 65 ℃ for 3h, then curing at 85 ℃ for 7h, cooling to room temperature, and removing the mold to obtain the composite material member.
Thus, the preparation of the boron-containing shielding composite material is completed.
Example 3:
the first step is as follows: preparing epoxy modified organic silicon resin
105 parts of epoxy resin, 110 parts of organosilicon intermediate, 45 parts of reactive diluent, 8 parts of silane coupling agent, 3 parts of DMP-30 accelerator, 5 parts of BYK-161 dispersing agent and 90 parts of polyether amine curing agent are mixed and stirred for 12min at the rotating speed of 150 r/min.
The second step is that: preparing mixed materials
100-125 parts of epoxy modified organic silicon resin prepared in the first step and B415-30 parts of C whiskers and 6-20 parts of chopped quartz fibers are mixed and uniformly mixed in a kneading machine.
The third step: curing of composite materials
And (3) putting the mixed material prepared in the second step into a mold with specified specification and size, curing at the temperature of 60 ℃ for 2h, curing at the temperature of 80 ℃ for 6h, cooling to room temperature, and removing the mold to obtain the composite material member.
Thus, the preparation of the boron-containing shielding composite material is completed.
Claims (6)
1. A preparation method of a boron-containing shielding composite material is characterized by comprising the following steps: which comprises the following steps of,
the first step is as follows: preparing epoxy modified organic silicon resin;
the second step is that: preparing a mixed material;
the third step: and (5) curing the composite material.
2. The method of preparing a boron-containing shielding composite of claim 1, wherein: the first step is to mix 100-110 parts of epoxy resin, 100-120 parts of organic silicon intermediate, 40-50 parts of reactive diluent, 5-10 parts of silane coupling agent, 2-5 parts of accelerant, 4-5 parts of dispersing agent and 80-100 parts of polyether amine curing agent, and stir at the rotating speed of 100-200 r/min for 10-15 min.
3. The method of preparing a boron-containing shielding composite of claim 1, wherein: the second step is that 100-125 parts of prepared epoxy modified organic silicon resin and B415-30 parts of C whiskers and 6-20 parts of chopped quartz fibers are mixed and uniformly mixed in a kneading machine.
4. The method of preparing a boron-containing shielding composite of claim 1, wherein: and the third step is that the mixed material prepared in the second step is placed into a mold with specified specification and size, the mixed material is cured for 2-3 h at the temperature of 60 +/-5 ℃, then cured for 5-7 h at the temperature of 80 +/-5 ℃, and the composite material member is obtained after the temperature is reduced to room temperature and the mold is removed.
5. The method of preparing a boron-containing shielding composite of claim 2, wherein: the accelerator in the first step is DMP 30.
6. The method of preparing a boron-containing shielding composite of claim 2, wherein: the dispersant in the first step is BYK 161.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910563743.2A CN112143229A (en) | 2019-06-26 | 2019-06-26 | Preparation method of boron-containing shielding composite material |
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| CN201910563743.2A CN112143229A (en) | 2019-06-26 | 2019-06-26 | Preparation method of boron-containing shielding composite material |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09176496A (en) * | 1995-12-27 | 1997-07-08 | Nippon Chem Ind Co Ltd | Neutron shielding material |
| CN1914693A (en) * | 2004-02-04 | 2007-02-14 | 三菱重工业株式会社 | Composition for neutron shield material, shield material and container |
| CN1926639A (en) * | 2004-02-04 | 2007-03-07 | 三菱重工业株式会社 | Composition used for neutron shielding material, shielding material and container |
| CN108659469A (en) * | 2018-05-18 | 2018-10-16 | 北京市射线应用研究中心 | The epoxy resin-matrix neutron shielding material and preparation and application that organic siliconresin is modified |
| CN109354826A (en) * | 2018-09-25 | 2019-02-19 | 北航（四川）西部国际创新港科技有限公司 | Nuclear screening material and its manufacturing method |
-
2019
- 2019-06-26 CN CN201910563743.2A patent/CN112143229A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09176496A (en) * | 1995-12-27 | 1997-07-08 | Nippon Chem Ind Co Ltd | Neutron shielding material |
| CN1914693A (en) * | 2004-02-04 | 2007-02-14 | 三菱重工业株式会社 | Composition for neutron shield material, shield material and container |
| CN1926639A (en) * | 2004-02-04 | 2007-03-07 | 三菱重工业株式会社 | Composition used for neutron shielding material, shielding material and container |
| CN108659469A (en) * | 2018-05-18 | 2018-10-16 | 北京市射线应用研究中心 | The epoxy resin-matrix neutron shielding material and preparation and application that organic siliconresin is modified |
| CN109354826A (en) * | 2018-09-25 | 2019-02-19 | 北航（四川）西部国际创新港科技有限公司 | Nuclear screening material and its manufacturing method |
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Application publication date: 20201229 |
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