CN110105662A - A kind of fire-retardant sealing strip and preparation method thereof - Google Patents
A kind of fire-retardant sealing strip and preparation method thereof Download PDFInfo
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- CN110105662A CN110105662A CN201910344882.6A CN201910344882A CN110105662A CN 110105662 A CN110105662 A CN 110105662A CN 201910344882 A CN201910344882 A CN 201910344882A CN 110105662 A CN110105662 A CN 110105662A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention discloses a kind of fire-retardant sealing strip, in parts by weight, including following components: 10~20 parts of 0.6~1.0 part of 4~8 parts of 0.4~0.8 part of 4~10 parts of 100~150 parts of 30~50 parts of 20~40 parts of copolymer, paraffin oil, carbon black, nano zine oxide, termite-proof masterbatch, ultraviolet absorbing agent, antioxidant, the fire retardant of 60~80 parts of polypropylene, MBS grafted maleic anhydride.Copolymer by the way that MBS maleic anhydride is added promotes polyacrylic mechanical property, keeps its deformation more preferable, more wear resistant more resistant to high temperature.The sealing strip prepared has good flame-retardant smoke inhibition effect, and wear-resisting, more permanent using the time, use cost is reduced, especially suitable for doors and windows sealing field.
Description
Technical field
The present invention relates to door and window sealing strip fields, and in particular to a kind of fire-retardant sealing strip and preparation method thereof.
Background technique
Sealing strip mostly uses greatly rubber system is standby to form, because it is widely used in doors and windows sealing neck with certain flexibility
Sound insulation is reinforced or the purpose of prevent rainwater from penetrating into realize in domain, currently there are sealing strip flame retardant effect it is bad, use
Time is not grown, and in season especially dry in sweltering heat, there are some potential safety problemss.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of fire-retardant sealing strip and preparation method thereof, the sealing strip prepared,
With good flame-retardant smoke inhibition effect, and it is wear-resisting, it is more permanent using the time, use cost is reduced, it is close especially suitable for door and window
Envelope field.
To achieve the goals above, the invention adopts the following technical scheme: a kind of fire-retardant sealing strip wraps in parts by weight
Include following components: 30~50 parts of 20~40 parts of copolymer, paraffin oil, the carbon black of 60~80 parts of polypropylene, MBS grafted maleic anhydride
100~150 parts, 4~10 parts of nano zine oxide, 0.4~0.8 part of termite-proof masterbatch, 4~8 parts of ultraviolet absorbing agent, antioxidant
0.6~1.0 part, 10~20 parts of fire retardant.Copolymer by the way that MBS maleic anhydride is added promotes polyacrylic mechanical property, makes
Its deformation is more preferable, more wear resistant more resistant to high temperature.
Preferably, in parts by weight, including following components: the copolymer 30 of 70 parts of polypropylene, MBS grafted maleic anhydride
Part, 40 parts of paraffin oil, 125 parts of carbon black, 7 parts of nano zine oxide, 0.6 part of termite-proof masterbatch, 6 parts of ultraviolet absorbing agent, antioxidant
0.8 part, 15 parts of fire retardant.The effect that the application realizes in this formula is best.
Further, the fire retardant is the mixture of magnesium hydroxide, aluminium hydroxide and hydration zinc borate, and hydroxide
Magnesium: aluminium hydroxide: hydration zinc borate=0.4:1:0.2.The application uses the form of composite flame-retardant agent, is considering flame retardant effect
Cost has been combined, and the addition of hydration zinc borate has played gain effect to flame retardant effect, it can better flame-retardant smoke inhibition.
Further, the nano zine oxide is modified by the following method: 20 parts of nano zine oxides are immersed quality point
Number is to filter out nano zine oxide after mixing evenly in 1.0% hydrochloric acid solution, 100 parts of water are added, be then slowly added to 10 parts of hard
Sour barium dispersing agent is heated up to 45 DEG C of lasting stirrings, nano zinc oxide fluid dispersion is obtained, into obtained nano zinc oxide fluid dispersion
4 parts of sodium dichromate, 2 parts of Sodium Polyacrylate is added, 30 parts of isopropanol, 20 parts of stearic acid, ultrasonic wave disperses 20min, is modified
Nano zine oxide liquid is put into drying box and is drying to obtain modified nano zinc oxide particle for 80 DEG C of temperature.It is modified nano oxidized
Zinc dispersibility is more preferable, more conducively with the cooperation of other components.
In order to preferably realize the present invention, the present invention discloses the preparation methods of fire-retardant sealing strip, including following step
It is rapid:
1) weigh by weight 60~80 parts of polypropylene, 20~40 parts of the copolymer of MBS grafted maleic anhydride, paraffin oil 30~
50 parts, 100~150 parts of carbon black, 4~10 parts of nano zine oxide, 0.4~0.8 part of termite-proof masterbatch, ultraviolet absorbing agent 4~8
Part, 0.6~1.0 part of antioxidant, are put into mixer and are kneaded 20min, and when temperature reaches 100 DEG C, fire retardant 10~20 is added
Part, continue to be kneaded；Other add fire retardant for first heating mixing, due to being added with magnesium hydroxide, hydrogen-oxygen in the application fire retardant
The reaction temperature for changing magnesium is higher, is not suitable for relatively early addition, and composite flame-retardant agent is added after material heating and had both saved the time or had improved
Reaction efficiency, and the fire retardant Halogen of the application, to more environment-friendly.
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 120~125 DEG C of material temperature degree, while
Open mill turns over 3 triangle bags, rolles over page machine slice through three rollers after turning over uniformly；It turns over 3 triangle bags and is more conducive to the equal of material when slice
Evenness.
3) material after step 2) slice carries out microwave vulcanization, up to required sealing strip after vulcanization.
Further, the microwave vulcanization is three-stage vulcanization, and first segment temperature is 220~230 DEG C, second segment temperature
It is 230~240 DEG C, second segment temperature is 250~260 DEG C.Using step up cure, sealing strip obtained is more smooth, the uniformity more
It is good.
Compared with prior art, bring of the present invention has the beneficial effect that 1) the application preparation method is simple, easy to operate,
The sealing strip slickness prepared is good, and the uniformity is good；
2) copolymer, the polypropylene of MBS grafted maleic anhydride is added in the application, and the two synergistic effect preferably improves poly-
Heat-resisting, the wear-resisting and mechanical property of propylene, is added carbon black and paraffin oil, then the expansion ratio of sizing material when improving mixing improves
The processing performance of sizing material, keeps its density lower, flexibility is more preferable, and can effectively reduce the nuisances such as the oil smoke in sulfidation
The generation of matter；
3) the application joined modified nano zinc oxide, improves the dispersibility of zinc oxide, cooperates with it with other components
Effect, improves the wear-resisting, corrosion-resistant of sealing strip, antioxygenic property, and can effectively prevent termite, the auxiliary agent addition of the application compared with
It is few, production cost is saved, easy to operate, the application is added with composite flame-retardant agent, and fire-retardant, suppression cigarette effectively controls fire retardant
Cost, be particularly suitable for medium-sized and small enterprises popularization and application.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.
Modification institute nano zine oxide of the invention is modified by the following method: 20 parts of nano zine oxides are immersed mass fraction
To filter out nano zine oxide after mixing evenly in 1.0% hydrochloric acid solution, 100 parts of water are added, are then slowly added to 10 parts of stearic acids
Barium dispersing agent is heated up to 45 DEG C of lasting stirrings, obtains nano zinc oxide fluid dispersion, add into obtained nano zinc oxide fluid dispersion
Enter 4 parts of sodium dichromate, 2 parts of Sodium Polyacrylate, 30 parts of isopropanol, 20 parts of stearic acid, ultrasonic wave disperses 20min, obtains modification and receives
Rice zinc oxide liquid, is put into drying box and is drying to obtain modified nano zinc oxide particle for 80 DEG C of temperature.
The antioxidant antioxidant of the application uses antioxidant 264, and ultraviolet absorbing agent is BASF ultraviolet absorbing agent
C81Chimassorb81 (UV531), protection against rodents masterbatch are ZSW environment protection, rat masterbatch, termite-proof masterbatch is the production of Klein company
Protection against rodents masterbatch.
Embodiment 1
1) 30 parts of 20 parts of copolymer, paraffin oil, the carbon black 100 of 60 parts of polypropylene, MBS grafted maleic anhydride are weighed by weight
Part, 4 parts of nano zine oxide, 0.4 part of termite-proof masterbatch, 4 parts of ultraviolet absorbing agent, 0.6 part of antioxidant, are put into mixer and are kneaded
20min is added 10 parts of fire retardant, fire retardant is magnesium hydroxide, aluminium hydroxide and hydration zinc borate when temperature reaches 100 DEG C
Mixture, and magnesium hydroxide: aluminium hydroxide: hydration zinc borate=0.4:1:0.2 continues to be kneaded；
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 120 DEG C of material temperature degree, while in open mill
3 triangle bags are turned over, roll over page machine slice through three rollers after turning over uniformly；
3) material after step 2) slice carries out the vulcanization of microwave three-stage, and first segment temperature is 220 DEG C, vulcanizes 10min, the
Two sections of temperature are 230 DEG C, vulcanize 15min, and third section temperature is 250 DEG C, vulcanize 10min, up to required sealing strip after vulcanization.
Detailed data comparison is shown in Table 1.
Embodiment 2
1) 40 parts of 30 parts of copolymer, paraffin oil, the carbon black 125 of 70 parts of polypropylene, MBS grafted maleic anhydride are weighed by weight
Part, 7 parts of nano zine oxide, 0.6 part of termite-proof masterbatch, 6 parts of ultraviolet absorbing agent, 0.8 part of antioxidant, are put into mixer and are kneaded
20min is added 15 parts of fire retardant, fire retardant is magnesium hydroxide, aluminium hydroxide and hydration zinc borate when temperature reaches 100 DEG C
Mixture, and magnesium hydroxide: aluminium hydroxide: hydration zinc borate=0.4:1:0.2 continues to be kneaded；
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 122 DEG C of material temperature degree, while in open mill
3 triangle bags are turned over, roll over page machine slice through three rollers after turning over uniformly；
3) material after step 2) slice carries out the vulcanization of microwave three-stage, and first segment temperature is 225 DEG C, vulcanizes 10min, the
Two sections of temperature are 235 DEG C, vulcanize 15min, and third section temperature is 255 DEG C, vulcanize 10min, up to required sealing strip after vulcanization.
Detailed data comparison is shown in Table 1.
Embodiment 3
1) 50 parts of 40 parts of copolymer, paraffin oil, the carbon black 150 of 80 parts of polypropylene, MBS grafted maleic anhydride are weighed by weight
Part, 10 parts of nano zine oxide, 0.8 part of termite-proof masterbatch, 8 parts of ultraviolet absorbing agent, 1.0 parts of antioxidant are put into mixer and mix
20min is refined, when temperature reaches 100 DEG C, is added 20 parts of fire retardant, fire retardant is magnesium hydroxide, aluminium hydroxide and hydration boric acid
The mixture of zinc, and magnesium hydroxide: aluminium hydroxide: hydration zinc borate=0.4:1:0.2 continues to be kneaded；
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 125 DEG C of material temperature degree, while in open mill
3 triangle bags are turned over, roll over page machine slice through three rollers after turning over uniformly；
3) material after step 2) slice carries out the vulcanization of microwave three-stage, and first segment temperature is 230 DEG C, vulcanizes 10min, the
Two sections of temperature are 240 DEG C, vulcanize 15min, and third section temperature is 260 DEG C, vulcanize 10min, up to required sealing strip after vulcanization.
Detailed data comparison is shown in Table 1.
Reference examples 1
(being not added with the copolymer of MBS grafted maleic anhydride compared with Example 3)
1) 80 parts of polypropylene, 50 parts of paraffin oil, 150 parts of carbon black, 10 parts of nano zine oxide, termite-proof masterbatch are weighed by weight
0.8 part, 8 parts of ultraviolet absorbing agent, 1.0 parts of antioxidant, are put into mixer and are kneaded 20min, when temperature reaches 100 DEG C, add
Enter 10~20 parts of fire retardant, fire retardant is the mixture of magnesium hydroxide, aluminium hydroxide and hydration zinc borate, and magnesium hydroxide: hydrogen
Aluminium oxide: hydration zinc borate=0.4:1:0.2 continues to be kneaded；
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 125 DEG C of material temperature degree, while in open mill
3 triangle bags are turned over, roll over page machine slice through three rollers after turning over uniformly；
3) material after step 2) slice carries out the vulcanization of microwave three-stage, and first segment temperature is 230 DEG C, vulcanizes 10min, the
Two sections of temperature are 240 DEG C, vulcanize 15min, and third section temperature is 260 DEG C, vulcanize 10min, up to required sealing strip after vulcanization.
Detailed data comparison is shown in Table 1.
Reference examples 2
(add compared with Example 3 is zinc oxide)
1) 50 parts of 40 parts of copolymer, paraffin oil, the carbon black 150 of 80 parts of polypropylene, MBS grafted maleic anhydride are weighed by weight
Part, 10 parts of zinc oxide, 0.8 part of termite-proof masterbatch, 8 parts of ultraviolet absorbing agent, 1.0 parts of antioxidant, are put into mixer and are kneaded
20min is added 20 parts of fire retardant, fire retardant is magnesium hydroxide, aluminium hydroxide and hydration zinc borate when temperature reaches 100 DEG C
Mixture, and magnesium hydroxide: aluminium hydroxide: hydration zinc borate=0.4:1:0.2 continues to be kneaded；
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 125 DEG C of material temperature degree, while in open mill
3 triangle bags are turned over, roll over page machine slice through three rollers after turning over uniformly；
3) material after step 2) slice carries out the vulcanization of microwave three-stage, and first segment temperature is 230 DEG C, vulcanizes 10min, the
Two sections of temperature are 240 DEG C, vulcanize 15min, and third section temperature is 260 DEG C, vulcanize 10min, up to required sealing strip after vulcanization.
Detailed data comparison is shown in Table 1.
Reference examples 3
(fire retardant is magnesium hydroxide compared with Example 3)
1) 50 parts of 40 parts of copolymer, paraffin oil, the carbon black 150 of 80 parts of polypropylene, MBS grafted maleic anhydride are weighed by weight
Part, 10 parts of nano zine oxide, 0.8 part of termite-proof masterbatch, 8 parts of ultraviolet absorbing agent, 1.0 parts of antioxidant are put into mixer and mix
20min is refined, when temperature reaches 100 DEG C, 20 parts of magnesium hydroxide is added, continues to be kneaded；
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 125 DEG C of material temperature degree, while in open mill
3 triangle bags are turned over, roll over page machine slice through three rollers after turning over uniformly；
3) material after step 2) slice carries out the vulcanization of microwave three-stage, and first segment temperature is 230 DEG C, vulcanizes 10min, the
Two sections of temperature are 240 DEG C, vulcanize 15min, and third section temperature is 260 DEG C, vulcanize 10min, up to required sealing strip after vulcanization.
Detailed data comparison is shown in Table 1.
Reference examples 4
(not using step up cure compared with Example 3)
1) 50 parts of 40 parts of copolymer, paraffin oil, the carbon black 150 of 80 parts of polypropylene, MBS grafted maleic anhydride are weighed by weight
Part, 10 parts of nano zine oxide, 0.8 part of termite-proof masterbatch, 8 parts of ultraviolet absorbing agent, 1.0 parts of antioxidant are put into mixer and mix
20min is refined, when temperature reaches 100 DEG C, is added 20 parts of fire retardant, fire retardant is magnesium hydroxide, aluminium hydroxide and hydration boric acid
The mixture of zinc, and magnesium hydroxide: aluminium hydroxide: hydration zinc borate=0.4:1:0.2 continues to be kneaded；
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 125 DEG C of material temperature degree, while in open mill
3 triangle bags are turned over, roll over page machine slice through three rollers after turning over uniformly；
3) material after step 2) slice carries out microwave vulcanization, and temperature is 260 DEG C, vulcanizes 35min, up to required after vulcanization
Sealing strip.
Detailed data comparison is shown in Table 1.
Table 1
Basic principles and main features and the features of the present invention of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement is both fallen in the range of claimed invention.The scope of protection of present invention is by appended claims
And its equivalent thereof.
Claims (6)
1. a kind of fire-retardant sealing strip, it is characterised in that: in parts by weight, including following components: 60~80 parts of polypropylene, MBS connect
4~10 parts of 100~150 parts of 30~50 parts of 20~40 parts of copolymer, paraffin oil, carbon black, the nano zine oxide of branch maleic anhydride are prevented
0.4~0.8 part of termite masterbatch, 4~8 parts of ultraviolet absorbing agent, 0.6~1.0 part of antioxidant, 10~20 parts of fire retardant.
2. fire-retardant sealing strip according to claim 1, it is characterised in that: in parts by weight, including following components: polypropylene
70 parts, 7 parts of 125 parts of 40 parts of 30 parts of copolymer, paraffin oil, carbon black, the nano zine oxide of MBS grafted maleic anhydride, termite-proof mother
Expect 0.6 part, 6 parts of ultraviolet absorbing agent, 0.8 part of antioxidant, 15 parts of fire retardant.
3. fire-retardant sealing strip according to claim 1, it is characterised in that: the fire retardant is magnesium hydroxide, hydroxide
The mixture of aluminium and hydration zinc borate, and magnesium hydroxide: aluminium hydroxide: hydration zinc borate=0.4:1:0.2.
4. fire-retardant sealing strip according to claim 1, it is characterised in that: the nano zine oxide changes by the following method
Property: it is to filter out nano zine oxide after mixing evenly in 1.0% hydrochloric acid solution, add that 20 parts of nano zine oxides, which are immersed mass fraction,
Enter 100 parts of water, be then slowly added to 10 parts of hard barium dispersing agents, is heated up to 45 DEG C of lasting stirrings, obtains nano zine oxide point
4 parts of sodium dichromate, 2 parts of Sodium Polyacrylate are added into obtained nano zinc oxide fluid dispersion for dispersion liquid, 30 parts of isopropanol, stearic
20 parts of acid, ultrasonic wave disperse 20min, obtain modified nano zinc oxide liquid, be put into drying box and be drying to obtain modification for 80 DEG C of temperature
Nano granular of zinc oxide.
5. the preparation method of -4 any fire-retardant sealing strips according to claim 1, it is characterised in that: the following steps are included:
1) 20~40 parts of copolymer, the paraffin oil 30~50 of 60~80 parts of polypropylene, MBS grafted maleic anhydride are weighed by weight
Part, 100~150 parts of carbon black, 4~10 parts of nano zine oxide, 0.4~0.8 part of termite-proof masterbatch, 4~8 parts of ultraviolet absorbing agent,
It 0.6~1.0 part of antioxidant, is put into mixer and is kneaded 20min, when temperature reaches 100 DEG C, be added 10~20 parts of fire retardant,
Continue to be kneaded；
2) material after step 1) is kneaded moves into open mill and carries out tabletting heat dissipation, rolls 120~125 DEG C of material temperature degree, while in mill
Machine turns over 3 triangle bags, rolles over page machine slice through three rollers after turning over uniformly；
3) material after step 2) slice carries out microwave vulcanization, up to required sealing strip after vulcanization.
6. the preparation method of fire-retardant sealing strip according to claim 5, it is characterised in that: the microwave vulcanization is three-stage
Vulcanization, first segment temperature are 220~230 DEG C, and second segment temperature is 230~240 DEG C, and third section temperature is 250~260 DEG C.
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| CN201910344882.6A CN110105662A (en) | 2019-04-26 | 2019-04-26 | A kind of fire-retardant sealing strip and preparation method thereof |
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| CN201910344882.6A CN110105662A (en) | 2019-04-26 | 2019-04-26 | A kind of fire-retardant sealing strip and preparation method thereof |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140206A (en) * | 2011-03-30 | 2011-08-03 | 浙江达利汽车零部件有限公司 | Tint seal strip without nitrosamine release and preparation method thereof |
| CN103435908A (en) * | 2013-08-23 | 2013-12-11 | 吴江市英力达塑料包装有限公司 | Elastic material for sealing strips and preparation method thereof |
| CN103601984A (en) * | 2013-11-08 | 2014-02-26 | 四川大学 | Method for preparing thermoplastic vulcanizate through blending desulfurized ethylene propylene diene monomer (EPDM) rubber powder/polypropylene |
| CN104277337A (en) * | 2014-09-28 | 2015-01-14 | 湖北诺克橡塑密封科技有限公司 | Automobile sealing strip as well as smell and VOC (volatile organic compound) control method |
| CN107189227A (en) * | 2017-07-18 | 2017-09-22 | 合肥万之景门窗有限公司 | A kind of cable flame retardant plastics and preparation method thereof |
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Application publication date: 20190809 |