CN109456591A - A kind of Environmentally-frieflame-retardant flame-retardant nylon composition - Google Patents
A kind of Environmentally-frieflame-retardant flame-retardant nylon composition Download PDFInfo
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- CN109456591A CN109456591A CN201811026328.5A CN201811026328A CN109456591A CN 109456591 A CN109456591 A CN 109456591A CN 201811026328 A CN201811026328 A CN 201811026328A CN 109456591 A CN109456591 A CN 109456591A
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- parts
- retardant
- nylon
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- frieflame
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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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
-
- 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
- C08K3/32—Phosphorus-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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34928—Salts
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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
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- 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
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- 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
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
-
- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
Abstract
The invention discloses a kind of Environmentally-frieflame-retardant flame-retardant nylon compositions, the fire-resistant nylon composition is made of following components by mass fraction: 30-40 parts of nylon resin, 10-20 parts of stearic acid, 10-20 parts of ammonium polyphosphate, 5-10 parts of refractory fibre mixture, 2-5 parts of boron nitride, 2-5 parts of magnesia, 2-5 parts of expanded graphite, 1-3 parts of antioxidant, 1-3 parts of fire retardant, 1-3 parts of stabilizer.The invention has the beneficial effects that: it is easy to operate, low energy consumption, it is easy to industrialized production, thermally conductive nylon and extraneous energy exchange are improved, and environment-protecting and non-poisonous, is suitable for popularization and application.
Description
Technical field
The present invention relates to Polymer Synthesizing modification and manufacture fields, are specifically related to a kind of Environmentally-frieflame-retardant flame-retardant nylon combination
Object.
Background technique
Its flame retardant property of non-modified nylon is poor, and vertical combustion can only achieve UL94V-2 grades, and oxygen index (OI) is 24 left
The right side, and drippage is generated in combustion, belong to combustible material, easily causes fire in use.Especially in electricity
Sub- product scope, the fire caused by nylon is countless, causes damages larger, therefore, becomes to the flame-retardant modified of nylon
Current academia and industry pay close attention to the project with tackling key problem jointly.But nylon comprehensive performance in the prior art is poor, therefore promotes
Using less extensively.
Summary of the invention
The object of the present invention is to provide a kind of Environmentally-frieflame-retardant flame-retardant nylon compositions, and the fire-resistant nylon composition is by following
Component is formed by mass fraction: 30-40 parts of nylon resin, 10-20 parts of stearic acid, 10-20 parts of ammonium polyphosphate, refractory fibre is mixed
5-10 parts of material is closed, 2-5 parts of boron nitride, 2-5 parts of magnesia, 2-5 parts of expanded graphite, 1-3 parts of antioxidant, 1-3 parts of fire retardant, is stablized
1-3 parts of agent.
It is further preferred that the fire-resistant nylon composition is made of following components by mass fraction: nylon resin 30,
10 parts of stearic acid, 10 parts of ammonium polyphosphate, 5 parts of refractory fibre mixture, 2 parts of boron nitride, 2 parts of magnesia, 2 parts of expanded graphite,
1 part of antioxidant, 1 part of fire retardant, 1 part of stabilizer.
It is further preferred that the fire-resistant nylon composition is made of following components by mass fraction: nylon resin 35
Part, 15 parts of stearic acid, 15 parts of ammonium polyphosphate, 7 parts of refractory fibre mixture, 4 parts of boron nitride, 3 parts of magnesia, expanded graphite 3
Part, 2 parts of antioxidant, 2 parts of fire retardant, 2 parts of stabilizer.
It is further preferred that the fire-resistant nylon composition is made of following components by mass fraction: nylon resin 40
Part, 20 parts of stearic acid, 20 parts of ammonium polyphosphate, 10 parts of refractory fibre mixture, 5 parts of boron nitride, 5 parts of magnesia, expanded graphite 5
Part, 3 parts of antioxidant, 3 parts of fire retardant, 3 parts of stabilizer.
The refractory fibre mixture is the one or two of aluminosilicate property, high-purity aluminosilicate property.
The antioxidant are as follows: 2,6- three-level butyl -4- methylphenols, bis- (3,5- three-level butyl -4- hydroxy phenyl) sulphur
At least one of ether, four (β-(3,5- three-level butyl -4- hydroxy phenyl) propionic acid) pentaerythritol esters.
The fire retardant are as follows: the one or two of cyanurate, melamine phosphate, guanidine salt and dicyandiamide salt.
The invention has the beneficial effects that: it is easy to operate, low energy consumption, it is easy to industrialized production, improve thermally conductive nylon with
Extraneous energy exchange, and it is environment-protecting and non-poisonous, it is suitable for popularization and application.
Specific embodiment
In order to deepen the understanding of the present invention and recognize, the present invention is made further With reference to embodiment
Illustrate and introduces.
Embodiment 1
A kind of Environmentally-frieflame-retardant flame-retardant nylon composition, the fire-resistant nylon composition press mass parts array by following components
At: nylon resin 30,10 parts of stearic acid, 10 parts of ammonium polyphosphate, 5 parts of refractory fibre mixture, 2 parts of boron nitride, magnesia 2
Part, 2 parts of expanded graphite, 1 part of antioxidant, 1 part of fire retardant, 1 part of stabilizer.
The refractory fibre mixture is the one or two of aluminosilicate property, high-purity aluminosilicate property.
The antioxidant are as follows: 2,6- three-level butyl -4- methylphenols, bis- (3,5- three-level butyl -4- hydroxy phenyl) sulphur
At least one of ether, four (β-(3,5- three-level butyl -4- hydroxy phenyl) propionic acid) pentaerythritol esters.
The fire retardant are as follows: the one or two of cyanurate, melamine phosphate, guanidine salt and dicyandiamide salt.
Embodiment 2
A kind of Environmentally-frieflame-retardant flame-retardant nylon composition, the fire-resistant nylon composition press mass parts array by following components
At: 35 parts of nylon resin, 15 parts of stearic acid, 15 parts of ammonium polyphosphate, 7 parts of refractory fibre mixture, 4 parts of boron nitride, magnesia 3
Part, 3 parts of expanded graphite, 2 parts of antioxidant, 2 parts of fire retardant, 2 parts of stabilizer.
The refractory fibre mixture is the one or two of aluminosilicate property, high-purity aluminosilicate property.
The antioxidant are as follows: 2,6- three-level butyl -4- methylphenols, bis- (3,5- three-level butyl -4- hydroxy phenyl) sulphur
At least one of ether, four (β-(3,5- three-level butyl -4- hydroxy phenyl) propionic acid) pentaerythritol esters.
The fire retardant are as follows: the one or two of cyanurate, melamine phosphate, guanidine salt and dicyandiamide salt.
Embodiment 3
A kind of Environmentally-frieflame-retardant flame-retardant nylon composition, the fire-resistant nylon composition press mass parts array by following components
At: 40 parts of nylon resin, 20 parts of stearic acid, 20 parts of ammonium polyphosphate, 10 parts of refractory fibre mixture, 5 parts of boron nitride, magnesia
5 parts, 5 parts of expanded graphite, 3 parts of antioxidant, 3 parts of fire retardant, 3 parts of stabilizer.
The refractory fibre mixture is the one or two of aluminosilicate property, high-purity aluminosilicate property.
The antioxidant are as follows: 2,6- three-level butyl -4- methylphenols, bis- (3,5- three-level butyl -4- hydroxy phenyl) sulphur
At least one of ether, four (β-(3,5- three-level butyl -4- hydroxy phenyl) propionic acid) pentaerythritol esters.
The fire retardant are as follows: the one or two of cyanurate, melamine phosphate, guanidine salt and dicyandiamide salt.
Claims (7)
1. a kind of Environmentally-frieflame-retardant flame-retardant nylon composition, which is characterized in that the fire-resistant nylon composition presses matter by following components
Number is measured to form: 30-40 parts of nylon resin, 10-20 parts of stearic acid, 10-20 parts of ammonium polyphosphate, refractory fibre mixture 5-10
Part, 2-5 parts of boron nitride, 2-5 parts of magnesia, 2-5 parts of expanded graphite, 1-3 parts of antioxidant, 1-3 parts of fire retardant, 1-3 parts of stabilizer.
2. a kind of Environmentally-frieflame-retardant flame-retardant nylon composition according to claim 1, which is characterized in that the fire-retardant nylon group
Close object to be made of following components by mass fraction: nylon resin 30,10 parts of stearic acid, 10 parts of ammonium polyphosphate, refractory fibre is mixed
Close 5 parts, 2 parts of boron nitride, 2 parts of magnesia, 2 parts of expanded graphite, 1 part of antioxidant, 1 part of fire retardant, 1 part of stabilizer of material.
3. a kind of Environmentally-frieflame-retardant flame-retardant nylon composition according to claim 1, which is characterized in that the fire-retardant nylon group
Object is closed to be made of following components by mass fraction: 35 parts of nylon resin, 15 parts of stearic acid, 15 parts of ammonium polyphosphate, refractory fibre
7 parts of mixture, 4 parts of boron nitride, 3 parts of magnesia, 3 parts of expanded graphite, 2 parts of antioxidant, 2 parts of fire retardant, 2 parts of stabilizer.
4. a kind of Environmentally-frieflame-retardant flame-retardant nylon composition according to claim 1, which is characterized in that the fire-retardant nylon group
Object is closed to be made of following components by mass fraction: 40 parts of nylon resin, 20 parts of stearic acid, 20 parts of ammonium polyphosphate, refractory fibre
10 parts of mixture, 5 parts of boron nitride, 5 parts of magnesia, 5 parts of expanded graphite, 3 parts of antioxidant, 3 parts of fire retardant, 3 parts of stabilizer.
5. a kind of Environmentally-frieflame-retardant flame-retardant nylon composition according to claim 1, which is characterized in that the refractory fibre is mixed
Close the one or two that material is aluminosilicate property, high-purity aluminosilicate property.
6. a kind of Environmentally-frieflame-retardant flame-retardant nylon composition according to claim 1, which is characterized in that the antioxidant are as follows:
2,6- three-level butyl -4- methylphenols, bis- (3,5- three-level butyl -4- hydroxy phenyl) thioethers, four (β-(3,5- three-level butyl -4-
At least one of hydroxy phenyl) propionic acid) pentaerythritol ester.
7. a kind of Environmentally-frieflame-retardant flame-retardant nylon composition according to claim 1, which is characterized in that the fire retardant are as follows:
The one or two of cyanurate, melamine phosphate, guanidine salt and dicyandiamide salt.
Priority Applications (1)
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CN201811026328.5A CN109456591A (en) | 2018-09-04 | 2018-09-04 | A kind of Environmentally-frieflame-retardant flame-retardant nylon composition |
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CN201811026328.5A CN109456591A (en) | 2018-09-04 | 2018-09-04 | A kind of Environmentally-frieflame-retardant flame-retardant nylon composition |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1997699A (en) * | 2004-05-04 | 2007-07-11 | 通用电气公司 | Halogen-free flame retardant polyamide composition with improved electrical properties |
CN102977573A (en) * | 2012-11-29 | 2013-03-20 | 王忠举 | Refractory fiber material |
CN103483809A (en) * | 2013-09-24 | 2014-01-01 | 株洲时代工程塑料制品有限责任公司 | High-flowability polyamide based halogen-free flame-retardant heat-conducting composite material and preparation method thereof |
CN104371318A (en) * | 2014-11-19 | 2015-02-25 | 上海大学 | Polyamide composite material with high thermal conductivity and high heat resistance and preparation method thereof |
CN104530694A (en) * | 2014-12-26 | 2015-04-22 | 广州市聚赛龙工程塑料有限公司 | Regenerated PA6 (polyamide 6)-base flame-retardant electric-insulating heat-conducting composite material, and preparation method and application thereof |
CN104987599A (en) * | 2015-07-29 | 2015-10-21 | 苏州新区华士达工程塑胶有限公司 | High-strength seat plastic |
CN107190363A (en) * | 2017-05-17 | 2017-09-22 | 长兴县煤山工业炉料有限公司 | A kind of aluminosilicate refractory fiber of high intensity |
CN108129834A (en) * | 2017-12-28 | 2018-06-08 | 许飞扬 | A kind of flame-resistant insulation composite nylon material |
CN108239389A (en) * | 2016-12-23 | 2018-07-03 | 惠州市良化新材料有限公司 | A kind of nylon 6 of high-temp resisting high-humidity resisting enhances composite material and preparation method thereof |
-
2018
- 2018-09-04 CN CN201811026328.5A patent/CN109456591A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1997699A (en) * | 2004-05-04 | 2007-07-11 | 通用电气公司 | Halogen-free flame retardant polyamide composition with improved electrical properties |
CN102977573A (en) * | 2012-11-29 | 2013-03-20 | 王忠举 | Refractory fiber material |
CN103483809A (en) * | 2013-09-24 | 2014-01-01 | 株洲时代工程塑料制品有限责任公司 | High-flowability polyamide based halogen-free flame-retardant heat-conducting composite material and preparation method thereof |
CN104371318A (en) * | 2014-11-19 | 2015-02-25 | 上海大学 | Polyamide composite material with high thermal conductivity and high heat resistance and preparation method thereof |
CN104530694A (en) * | 2014-12-26 | 2015-04-22 | 广州市聚赛龙工程塑料有限公司 | Regenerated PA6 (polyamide 6)-base flame-retardant electric-insulating heat-conducting composite material, and preparation method and application thereof |
CN104987599A (en) * | 2015-07-29 | 2015-10-21 | 苏州新区华士达工程塑胶有限公司 | High-strength seat plastic |
CN108239389A (en) * | 2016-12-23 | 2018-07-03 | 惠州市良化新材料有限公司 | A kind of nylon 6 of high-temp resisting high-humidity resisting enhances composite material and preparation method thereof |
CN107190363A (en) * | 2017-05-17 | 2017-09-22 | 长兴县煤山工业炉料有限公司 | A kind of aluminosilicate refractory fiber of high intensity |
CN108129834A (en) * | 2017-12-28 | 2018-06-08 | 许飞扬 | A kind of flame-resistant insulation composite nylon material |
Non-Patent Citations (1)
Title |
---|
《机械设计材料手册》编写组: "《原子能工业机械设计材料手册》", 31 October 1979, 原子能出版社 * |
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Application publication date: 20190312 |