CN109535508A - A kind of counter body material and preparation method thereof that flame retardant property is good - Google Patents
A kind of counter body material and preparation method thereof that flame retardant property is good Download PDFInfo
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- CN109535508A CN109535508A CN201811373170.9A CN201811373170A CN109535508A CN 109535508 A CN109535508 A CN 109535508A CN 201811373170 A CN201811373170 A CN 201811373170A CN 109535508 A CN109535508 A CN 109535508A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses a kind of good counter body material and preparation method thereof of flame retardant property, the raw material including following parts by weight: 16.8-20.5 parts of vinyltrimethoxysilane, 45-57 parts of nitrile rubber, 23-28 parts of tourmaline powder, 14-18.8 parts of para-aminophenol, 7.5-9.6 parts of carbon fiber, 39-44 parts of bisphenol-A epoxy resin, 4-7.5 parts of fire retardant, 24.3-29.5 parts of hydroxy silicon oil and 2.8-5.5 parts of coupling agent.Raw material sources of the present invention are extensive, by the way that different raw materials is used different preparation processes, obtain different products, different products is used cooperatively again, the finished product of preparation has good tensile strength, bending strength, notch impact strength and flame retardant property, the use demand for meeting computer, has a extensive future.
Description
Technical field
The present invention relates to computer field, the good counter body material of specifically a kind of flame retardant property.
Background technique
With the development of science and technology with the raising of people's income, computer have become people's life, in working and learning from
The tool that do not open.Computer is commonly called as computer, is a kind of modern electronic computer device for supercomputing, can carry out numerical value meter
It calculates, and logic calculation can be carried out, also have the function of store-memory, be that can be run according to program, automatic, high speed processing magnanimity
The modernization intelligent electronic device of data.
Computer is bring conveniently for people's various activities, and case of computer is protection computer-internal component
, with the fast development of computer industry, the direction that counter body is also high towards intensity, rigidity is big is developed, existing meter
Calculation machine shell mostly uses acrylonitrile-butadiene-styrene (ABS) plastics, ABS engineering plastics etc. to make composite material, these composite materials
With good mechanical property, also there is good processing fluidity, if notification number is the patent of CN108299819A, although tool
There are good use intensity and high-termal conductivity, but there are also to be strengthened for flame retardant property.
Summary of the invention
The purpose of the present invention is to provide a kind of good counter body materials of flame retardant property, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of counter body material that flame retardant property is good, the raw material including following parts by weight: vinyl trimethoxy silicon
16.8-20.5 parts of alkane, 45-57 parts of nitrile rubber, 23-28 parts of tourmaline powder, 14-18.8 parts of para-aminophenol, carbon fiber 7.5-
9.6 parts, 39-44 parts of bisphenol-A epoxy resin, 4-7.5 parts of fire retardant, 24.3-29.5 parts of hydroxy silicon oil and coupling agent
2.8-5.5 part.
As a further solution of the present invention: the partial size of tourmaline powder is 0.8-1.45mm.
As a further solution of the present invention: fire retardant includes magnesium hydroxide, antimony oxide, red phosphorus and tributyl phosphate
In at least two.
The preparation method of the good counter body material of the flame retardant property, the specific steps are as follows:
Step 1, by tourmaline powder be immersed in mass fraction be 25-35% ammonium hydroxide in 35-45 minutes, after drying with it is right
Then amino-phenol and hydroxy silicon oil ball milling 80-120 minutes in the ball mill are kept for 7-10 minutes in the electric field, obtain first
Mixture；
Carbon fiber powder is broken to 150-180 mesh, maleic anhydride is added thereto, heated under 75-80 degrees Celsius by step 2
And stir 30-45 minutes, modified carbon fiber powder is obtained, it is spare；
Step 3, by nitrile rubber and change bisphenol A type epoxy resin be mixed and heated to molten condition, while stirring to
Vinyltrimethoxysilane and modified carbon fiber powder is wherein added, continues high-speed stirred 20-30 points after being added completely into
Clock obtains the second mixture；
First mixture, the second mixture and coupling agent are added in mixer mixing 10-16 minutes step 4, then to
Fire retardant and mixing 80-90 minutes are wherein added, obtain third mixture；
Extrusion molding in third mixture addition screw extruding molding machine is arrived finished product by step 5.
As a further solution of the present invention: electric field strength is 20-26V/m, voltage 40-60V in step 1.
As a further solution of the present invention: smelting temperature is 120-138 degrees Celsius in step 4, and mixing atmosphere is inertia
Gas shield.
As a further solution of the present invention: the revolving speed of screw extruding molding machine is 150-240rpm, temperature in step 5
It is 185-196 degrees Celsius.
Compared with prior art, the beneficial effects of the present invention are: raw material sources of the present invention are extensive, by by different raw materials
Using different preparation processes, different products is obtained, then different products is used cooperatively, the finished product of preparation has good
Tensile strength, bending strength, notch impact strength and flame retardant property meet the use demand of computer, have a extensive future.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of counter body material that flame retardant property is good, the raw material including following parts by weight: vinyl trimethoxy silicon
16.8 parts of alkane, 45 parts of nitrile rubber, 23 parts of tourmaline powder, 14 parts of para-aminophenol, 7.5 parts of carbon fiber, hydrogenated bisphenol A type epoxy
39 parts of resin, 4 parts of fire retardant, 24.3 parts of hydroxy silicon oil and 2.8 parts of coupling agent.Fire retardant includes the mixing of magnesium hydroxide and red phosphorus
Object.
The preparation method of the good counter body material of the flame retardant property, the specific steps are as follows:
Tourmaline powder is immersed in the ammonium hydroxide that mass fraction is 28% 35-45 minutes by step 1, after drying and to amino
Phenol and hydroxy silicon oil ball milling 96 minutes in the ball mill, are then kept for 8 minutes, electric field strength 24V/m, voltage in the electric field
For 48V, the first mixture is obtained；
Carbon fiber powder is broken to 160 mesh, maleic anhydride is added thereto, heated and stir under 77 degrees Celsius by step 2
39 minutes, modified carbon fiber powder is obtained, it is spare；
Step 3, by nitrile rubber and change bisphenol A type epoxy resin be mixed and heated to molten condition, while stirring to
Vinyltrimethoxysilane and modified carbon fiber powder is wherein added, continues high-speed stirred 25 minutes after being added completely into,
Obtain the second mixture；
First mixture, the second mixture and coupling agent are added in mixer mixing 14 minutes step 4, then thereto
Fire retardant and mixing 88 minutes are added, obtain third mixture；
Extrusion molding in screw extruding molding machine, revolving speed 180rpm is added in third mixture by step 5, and temperature is
188 degrees Celsius to get arrive finished product.
Embodiment 2
A kind of counter body material that flame retardant property is good, the raw material including following parts by weight: vinyl trimethoxy silicon
17.5 parts of alkane, 48.8 parts of nitrile rubber, 24.4 parts of tourmaline powder, 15.2 parts of para-aminophenol, 8.4 parts of carbon fiber, hydrogenated bisphenol A
40.6 parts of type epoxy resin, 5.5 parts of fire retardant, 26.2 parts of hydroxy silicon oil and 3.7 parts of coupling agent.The partial size of tourmaline powder is
0.96mm.Fire retardant includes the mixture of magnesium hydroxide, antimony oxide and tributyl phosphate.
The preparation method of the good counter body material of the flame retardant property, the specific steps are as follows:
Step 1, by tourmaline powder be immersed in mass fraction be 32% ammonium hydroxide in 41 minutes, after drying with p-aminophenyl
Phenol and hydroxy silicon oil ball milling 105 minutes in the ball mill, are then kept for 9 minutes in the electric field, obtain the first mixture；
Carbon fiber powder is broken to 170 mesh, maleic anhydride is added thereto, heats and stirs at 80 degrees celsius by step 2
35 minutes, modified carbon fiber powder is obtained, it is spare；
Step 3, by nitrile rubber and change bisphenol A type epoxy resin be mixed and heated to molten condition, while stirring to
Vinyltrimethoxysilane and modified carbon fiber powder is wherein added, continues high-speed stirred 20 minutes after being added completely into,
Obtain the second mixture；
First mixture, the second mixture and coupling agent are added in mixer mixing 14 minutes step 4, then thereto
Fire retardant and mixing 86 minutes are added, smelting temperature is 135 degrees Celsius, and mixing atmosphere is nitrogen protection, obtains third mixing
Object；
Extrusion molding in screw extruding molding machine, revolving speed 195rpm is added in third mixture by step 5, and temperature is
192 degrees Celsius to get arrive finished product.
Embodiment 3
A kind of counter body material that flame retardant property is good, the raw material including following parts by weight: vinyl trimethoxy silicon
19.4 parts of alkane, 53.8 parts of nitrile rubber, 26.1 parts of tourmaline powder, 17.5 parts of para-aminophenol, 9.3 parts of carbon fiber, hydrogenated bisphenol A
43.7 parts of type epoxy resin, 7.2 parts of fire retardant, 28.8 parts of hydroxy silicon oil and 5 parts of coupling agent.The partial size of tourmaline powder is
1.32mm.Fire retardant includes the mixture of magnesium hydroxide, antimony oxide, red phosphorus and tributyl phosphate.
The preparation method of the good counter body material of the flame retardant property, the specific steps are as follows:
Tourmaline powder is immersed in the ammonium hydroxide that mass fraction is 32% 35-45 minutes by step 1, after drying and to amino
Phenol and hydroxy silicon oil ball milling 86 minutes in the ball mill, are then kept for 10 minutes, electric field strength 23V/m, electricity in the electric field
Pressure is 55V, obtains the first mixture；
Carbon fiber powder is broken to 160 mesh, maleic anhydride is added thereto, heated and stir under 77 degrees Celsius by step 2
42 minutes, modified carbon fiber powder is obtained, it is spare；
Step 3, by nitrile rubber and change bisphenol A type epoxy resin be mixed and heated to molten condition, while stirring to
Vinyltrimethoxysilane and modified carbon fiber powder is wherein added, continues high-speed stirred 30 minutes after being added completely into,
Obtain the second mixture；
First mixture, the second mixture and coupling agent are added in mixer mixing 14 minutes step 4, then thereto
Fire retardant and mixing 86 minutes are added, smelting temperature is 134 degrees Celsius, and mixing atmosphere is inert gas shielding, obtains third
Mixture；
Extrusion molding in screw extruding molding machine, revolving speed 210rpm is added in third mixture by step 5, and temperature is
186 degrees Celsius to get arrive finished product.
Embodiment 4
A kind of counter body material that flame retardant property is good, the raw material including following parts by weight: vinyl trimethoxy silicon
20.5 parts of alkane, 57 parts of nitrile rubber, 28 parts of tourmaline powder, 18.8 parts of para-aminophenol, 9.6 parts of carbon fiber, hydrogenated bisphenol A type ring
44 parts of oxygen resin, 7.5 parts of fire retardant, 29.5 parts of hydroxy silicon oil and 5.5 parts of coupling agent.The partial size of tourmaline powder is 1.37mm.
The preparation method of the good counter body material of the flame retardant property, the specific steps are as follows:
Step 1, by tourmaline powder be immersed in mass fraction be 25-35% ammonium hydroxide in 35-45 minutes, after drying with it is right
Amino-phenol and hydroxy silicon oil ball milling 110 minutes in the ball mill, are then kept for 9 minutes, electric field strength 25V/ in the electric field
M, voltage 55V obtain the first mixture；
Carbon fiber powder is broken to 170 mesh, maleic anhydride is added thereto, heats and stirs at 80 degrees celsius by step 2
40 minutes, modified carbon fiber powder is obtained, it is spare；
Step 3, by nitrile rubber and change bisphenol A type epoxy resin be mixed and heated to molten condition, while stirring to
Vinyltrimethoxysilane and modified carbon fiber powder is wherein added, continues high-speed stirred 26 minutes after being added completely into,
Obtain the second mixture；
First mixture, the second mixture and coupling agent are added in mixer mixing 15 minutes step 4, then thereto
Fire retardant and mixing 84 minutes are added, smelting temperature is 133 degrees Celsius, and mixing atmosphere is inert gas shielding, obtains third
Mixture；
Extrusion molding in third mixture addition screw extruding molding machine is arrived finished product by step 5.
Comparative example 1
Use notification number for the product of CN108299819A as a comparison case 1.
Comparative example 2
Except para-aminophenol is not contained, remaining raw material and preparation method are same as Example 3.
Comparative example 3
Except electric field treatment is not used, remaining raw material and preparation method are same as Example 3.
The product of the product of embodiment 1-4 and comparative example 1-3 is tested for the property, test result is shown in Table 1.
Table 1
| Tensile strength | Bending strength | Notch impact strength | Flame retardant rating | |
| Embodiment 1 | 58.8MPa | 97.5MPa | 105.2J/m | V0 |
| Embodiment 2 | 59.6MPa | 96.3MPa | 98.7J/m | V0 |
| Embodiment 3 | 60.3MPa | 98.7MPa | 107.5J/m | V0 |
| Embodiment 4 | 58.7MPa | 95.8MPa | 102.4J/m | V0 |
| Comparative example 1 | 51.6MPa | 83.6MPa | 86.3J/m | V1 |
| Comparative example 2 | 50.8MPa | 81.4MPa | 84.3J/m | V1 |
| Comparative example 3 | 53.4MPa | 86.7MPa | 92.1J/m | V1 |
From table 1 it follows that the product of embodiment 1-4 is in tensile strength, bending strength, notch impact strength and fire-retardant
It is superior to the product of comparative example 1-3 in grade, shows that product of the invention has good mechanical property and flame retardant property.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of good counter body material of flame retardant property, which is characterized in that the raw material including following parts by weight: vinyl three
16.8-20.5 parts of methoxy silane, 45-57 parts of nitrile rubber, 23-28 parts of tourmaline powder, 14-18.8 parts of para-aminophenol, carbon
7.5-9.6 parts of fiber, 39-44 parts of bisphenol-A epoxy resin, 4-7.5 parts of fire retardant, 24.3-29.5 parts of hydroxy silicon oil and
2.8-5.5 parts of coupling agent.
2. the good counter body material of flame retardant property according to claim 1, which is characterized in that the tourmaline powder
Partial size is 0.8-1.45mm.
3. the good counter body material of flame retardant property according to claim 1 or 2, which is characterized in that the fire retardant
Including at least two in magnesium hydroxide, antimony oxide, red phosphorus and tributyl phosphate.
4. a kind of preparation method for the counter body material that flame retardant property a method according to any one of claims 1-3 is good, feature
It is, the specific steps are as follows:
Tourmaline powder is immersed in the ammonium hydroxide that mass fraction is 25-35% 35-45 minutes, after drying and to amino by step 1
Then phenol and hydroxy silicon oil ball milling 80-120 minutes in the ball mill are kept for 7-10 minutes in the electric field, obtain the first mixing
Object；
Carbon fiber powder is broken to 150-180 mesh, maleic anhydride is added thereto, heated and stir under 75-80 degrees Celsius by step 2
It mixes 30-45 minutes, obtains modified carbon fiber powder, it is spare；
Nitrile rubber and change bisphenol A type epoxy resin are mixed and heated to molten condition, while stirring thereto by step 3
Vinyltrimethoxysilane and modified carbon fiber powder is added, continues high-speed stirred 20-30 minutes after being added completely into, obtains
To the second mixture；
First mixture, the second mixture and coupling agent are added in mixer mixing 10-16 minutes step 4, then thereto
Fire retardant and mixing 80-90 minutes are added, obtain third mixture；
Extrusion molding in third mixture addition screw extruding molding machine is arrived finished product by step 5.
5. the preparation method of the good counter body material of flame retardant property according to claim 4, which is characterized in that described
Electric field strength is 20-26V/m, voltage 40-60V in step 1.
6. the preparation method of the good counter body material of flame retardant property according to claim 4, which is characterized in that described
Smelting temperature is 120-138 degrees Celsius in step 4, and mixing atmosphere is inert gas shielding.
7. the preparation method of the good counter body material of the flame retardant property according to claim 4 or 6, which is characterized in that
The revolving speed of screw extruding molding machine is 150-240rpm in the step 5, and temperature is 185-196 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373170.9A CN109535508A (en) | 2018-11-19 | 2018-11-19 | A kind of counter body material and preparation method thereof that flame retardant property is good |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373170.9A CN109535508A (en) | 2018-11-19 | 2018-11-19 | A kind of counter body material and preparation method thereof that flame retardant property is good |
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| CN109535508A true CN109535508A (en) | 2019-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204901A (en) * | 2019-05-14 | 2019-09-06 | 福洹体育用品（苏州）有限公司 | A kind of preparation method of high impact polymers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546566A (en) * | 2003-12-12 | 2004-11-17 | 无锡市化工研究设计院 | Molding compound for sheet tantalum capacitor |
| CN105820701A (en) * | 2016-05-23 | 2016-08-03 | 庄可香 | Environment-friendly phenolic resin heat dissipating paint for decorative LED lamps |
| WO2016145651A1 (en) * | 2015-03-19 | 2016-09-22 | Ablestik (Shanghai) Ltd. | Epoxy molding compound, preparation and use thereof |
-
2018
- 2018-11-19 CN CN201811373170.9A patent/CN109535508A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546566A (en) * | 2003-12-12 | 2004-11-17 | 无锡市化工研究设计院 | Molding compound for sheet tantalum capacitor |
| WO2016145651A1 (en) * | 2015-03-19 | 2016-09-22 | Ablestik (Shanghai) Ltd. | Epoxy molding compound, preparation and use thereof |
| CN105820701A (en) * | 2016-05-23 | 2016-08-03 | 庄可香 | Environment-friendly phenolic resin heat dissipating paint for decorative LED lamps |
Non-Patent Citations (2)
| Title |
|---|
| 徐霞等: "纳米负离子整理剂的研制及其在汽车内装饰面料上的应用", 《印染助剂》 * |
| 黄剑锋等: "《纤维增强树脂基复合材料及其湿式摩擦学性能》", 31 December 2016, 西北工业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204901A (en) * | 2019-05-14 | 2019-09-06 | 福洹体育用品（苏州）有限公司 | A kind of preparation method of high impact polymers |
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