CN108003600A - A kind of flame retardant automotive inside gadget material and preparation method thereof - Google Patents
A kind of flame retardant automotive inside gadget material and preparation method thereof Download PDFInfo
- Publication number
- CN108003600A CN108003600A CN201711402259.9A CN201711402259A CN108003600A CN 108003600 A CN108003600 A CN 108003600A CN 201711402259 A CN201711402259 A CN 201711402259A CN 108003600 A CN108003600 A CN 108003600A
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- CN
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- Prior art keywords
- flame retardant
- parts
- inside gadget
- compatilizer
- antioxidant
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Classifications
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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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- 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
-
- 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
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of flame retardant automotive inside gadget material and preparation method thereof, its flame retardant automotive inside gadget material includes the following raw material：Polyurethane resin, aramid fiber, coir fibre, silane coupling agent G 570, ultra-fine inorganic fire-retardant filler, flame retardant, dispersant, antioxidant, compatilizer.The material for car interior trim parts good moldability of the present invention, processability is strong, formula rationally environmental protection, the compatilizer of addition, silane coupling agent etc. can the cementabilities and compatibility between polyurethane resin such as reinforcing fiber, inorganic fire-retarded filler, the function that dual fire-retardant effect also has plasticising is played in the addition of inorganic fire-retarded filler and flame retardant at the same time, its flame retardant effect and security performance are all than ideal.
Description
Technical field
The present invention relates to a kind of polymer composite and preparation method thereof, and in particular to a kind of flame retardant automotive inside gadget material
Material and preparation method thereof.
Background technology
With developing rapidly for high molecular material, the flame-retarded technology research of this kind of material is increasingly extensive and gos deep into, common
Fire retardant can be divided mainly into inorganic metal hydroxide, halogen containing flame-retardant.Inorganic metal hydroxide decomposes in combustion
The oxide of substantial amounts of heat while generation, which can be absorbed, can be coated on the surface of polymer so as to completely cut off air and heat to rise
To flame retardant effect, but since flame retarding efficiency is relatively low, it is necessary to additive amount can be only achieved greatly preferable flame retardant effect very much and this kind of
The larger poor compatibility for causing itself and matrix of material polarity, power scattered uneven therefore that material can be substantially reduced in the substrate
Learn performance；Halogen containing flame-retardant produces hydrogen halides at them in heated and combustion process, dilutes the air of surrounding, and capture hydrogen-oxygen
Free radical, suppresses flame.Halogenated flame retardant has highly effective flame-retardant characteristic, smaller on substrate performance influence, but this based flame retardant
Harmful gas can be discharged in combustion, is polluted the environment at the same time, is gradually substituted by halogen-free flame retardants, therefore
Need a kind of loss that there can be flame retardant effect to can overcome the disadvantages that material mechanical performance again at the same time.
The purpose of the present invention is compound with inorganic fire-retarded filler by flame retardant, to reduce nothing in compound polyurethane material
The usage amount of machine fire-retardant filler, avoids the loss of material mechanical performance.The flame retardant that the present invention uses for nitrogenated flame retardant and
The compound of phosphorus flame retardant, not only with P-N junction structure, itself can play fire retardation, then compound inorganic fire-retarded filler, not only
Good flame retardation effect also has the function that plasticising.Make inorganic fire-retarded filler and flame retardant can be with by compatilizer and silane coupling agent
Preferably carry out being bonded between polyurethane and other fibers and compatible, institutional framework is closely knit, so as to further lift polyurethane
The comprehensive performance and flame retardant effect of composite material.
The content of the invention
In view of the foregoing, it is an object to provide a kind of flame retardant automotive inside gadget material and preparation method thereof,
So that obtained material for car interior trim parts good moldability, processability is strong, is formulated rationally environmental protection, flame retardant effect and security performance all compared with
Ideal.
To achieve these goals, the technical solution adopted by the present invention is：A kind of flame retardant automotive inside gadget material, by as follows
The raw material composition of parts by weight：
90-100 parts of polyurethane resin, 20-30 parts of aramid fiber, 8-12 parts of coir fibre, silane coupling agent G-570 3-5
Part, 20-30 parts of ultra-fine inorganic fire-retardant filler, 10-15 parts of flame retardant, 4-6 parts of dispersant, 1-2 parts of antioxidant, compatilizer 5-
8 parts.
The ultra-fine inorganic fire-retardant filler is magnesium hydroxide, calcined kaolin, white carbon, the compound of ammonium octamolybdate；Its
In, magnesium hydroxide, calcined kaolin, white carbon, the weight ratio of ammonium octamolybdate are 8:(0.5-0.8):(0.2-0.4):(1-
1.2)；The preparation of above-mentioned ultra-fine inorganic fire-retardant filler is obtained by ultra-fine pulverizer disintegrating, and size controlling is in 100-150 mesh.
The flame retardant is nitrogenated flame retardant and the compound of phosphorus flame retardant；Wherein, nitrogenated flame retardant and the resistance of phosphorus system
The weight ratio for firing agent is 1:(0.8-1.2)；Above-mentioned nitrogenated flame retardant is selected from melamine cyanurate, melamine condensed phosphate
One or both of；Phosphorus flame retardant is selected from one or both of water-soluble poly ammonium phosphate, diethyl ethylphosphate DEEP.
The dispersant is any one or more in oxidized polyethylene wax, polyethylene glycol 200, polyethylene glycol 400.
The antioxidant is antioxidant 1010 and the compound of antioxidant B215；Wherein, antioxidant 1010 and antioxidant
The weight ratio of B215 is 1:(0.5-0.8).
The compatilizer is any one or more in maleic acid bar compatilizer, compatilizer ST-6, compatilizer ST-7.
The preparation method of above-mentioned flame retardant automotive inside gadget material, comprises the following steps：
Step 1：By polyurethane resin, silane coupling agent G-570, ultra-fine inorganic fire-retardant filler, flame retardant and compatilizer
By formula rate double screw extruder melt blending, modified flame retardant polyurethane resin master batch is extruded；
Step 2：Change according to formula by what is obtained in flax fiber, coir fibre, dispersant, antioxidant and step 1
The flame retardant polyurethane resin master batch of property mixes 15-20min in high-speed mixer；
Step 3：Above-mentioned mixture is sent into double screw extruder, melt blending, extruding pelletization；A kind of fire-retardant vapour is made
In-car gadget material.
The ultra-fine inorganic fire-retardant filler of the present invention is magnesium hydroxide, calcined kaolin, white carbon, the compounding of ammonium octamolybdate
Thing, its low cigarette, flame retarding efficiency are high；It is environmentally friendly, it is cheap；Filling effect is strong, is uniformly dispersed；Processing performance is excellent, and
It will not corrode in process.
The flame retardant of the present invention is nitrogenated flame retardant and the compound of phosphorus flame retardant, not only with P-N junction structure, but also
Itself also has the function of plasticising while fire retardation is played, and highly effective flame-retardant, is halogen-free；And it can improve in plastic shaping
Flow processability can and reduce ablation, improve heat aging performance, corrosion-free effect, ultraviolet resistance according to etc..
Beneficial effects of the present invention：The material for car interior trim parts good moldability of the present invention, processability is strong, is formulated reasonable ring
Protect, the compatilizer of addition, silane coupling agent etc. can the cementabilities between polyurethane resin such as reinforcing fiber, inorganic fire-retarded filler
And compatibility, while the function that dual fire-retardant effect also has plasticising is played in the addition of inorganic fire-retarded filler and flame retardant, its
Flame retardant effect and security performance are all than ideal.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.In embodiment, various raw materials are all Marko's ripple
Net product.
Embodiment 1
A kind of flame retardant automotive inside gadget material, is made of the raw material of following parts by weight：
100 parts of polyurethane resin, 28 parts of aramid fiber, 10 parts of coir fibre, 4 parts of silane coupling agent G-570, hydroxide
16 parts of magnesium, 1.6 parts of calcined kaolin, 0.8 part of white carbon, 2.4 parts of ammonium octamolybdate, 6 parts of melamine condensed phosphate, ethyl phosphine
6 parts of diethyl phthalate DEEP, 5 parts of oxidized polyethylene wax, 1.2 parts of antioxidant 1010,0.6 part of antioxidant B215, maleic acid bar phase
Hold 5 parts of agent, 2 parts of compatilizer ST-6.
The preparation method of above-mentioned flame retardant automotive inside gadget material, comprises the following steps：
Step 1：By polyurethane resin, silane coupling agent G-570, magnesium hydroxide, calcined kaolin, white carbon, eight molybdic acids
Ammonium, melamine condensed phosphate, diethyl ethylphosphate DEEP and maleic acid bar compatilizer, compatilizer ST-6 press formula rate
With double screw extruder melt blending, modified flame retardant polyurethane resin master batch is extruded；
Step 2：According to formula by flax fiber, coir fibre, oxidized polyethylene wax, antioxidant 1010, antioxidant B215
18min is mixed in high-speed mixer with the flame retardant polyurethane resin master batch of the modification obtained in step 1；
Step 3：Above-mentioned mixture is sent into double screw extruder, melt blending, extruding pelletization；A kind of fire-retardant vapour is made
In-car gadget material.
After testing, the fire resistance for the flame retardant automotive inside gadget material that the present embodiment obtains reaches UL-94V-0 grades, and oxygen refers to
Number is 32.8%.
Embodiment 2
A kind of flame retardant automotive inside gadget material, is made of the raw material of following parts by weight：
95 parts of polyurethane resin, 30 parts of aramid fiber, 10 parts of coir fibre, 5 parts of silane coupling agent G-570, magnesium hydroxide
24 parts, 1.5 parts of calcined kaolin, 0.6 part of white carbon, 3 parts of ammonium octamolybdate, 6 parts of melamine cyanurate, diethyl ethylphosphate
7.2 parts of DEEP, 6 parts of polyethylene glycol 200,1.2 parts of antioxidant 1010,0.6 part of antioxidant B215, maleic acid bar compatilizer 8
Part.
The preparation method of above-mentioned flame retardant automotive inside gadget material, comprises the following steps：
Step 1：By polyurethane resin, silane coupling agent G-570, magnesium hydroxide, calcined kaolin, white carbon, eight molybdic acids
Ammonium, melamine cyanurate, diethyl ethylphosphate DEEP and maleic acid bar compatilizer are by formula rate double screw extruder
Melt blending, extrudes modified flame retardant polyurethane resin master batch；
Step 2：According to formula by flax fiber, coir fibre, polyethylene glycol 200, antioxidant 1010, antioxidant B215
18min is mixed in high-speed mixer with the flame retardant polyurethane resin master batch of the modification obtained in step 1；
Step 3：Above-mentioned mixture is sent into double screw extruder, melt blending, extruding pelletization；A kind of fire-retardant vapour is made
In-car gadget material.
After testing, the fire resistance for the flame retardant automotive inside gadget material that the present embodiment obtains reaches UL-94V-0 grades, and oxygen refers to
Number is 33.6%.
Claims (9)
1. a kind of flame retardant automotive inside gadget material, it is characterised in that be made of the raw material of following parts by weight：
90-100 parts of polyurethane resin, 20-30 parts of aramid fiber, 8-12 parts of coir fibre, 3-5 parts of silane coupling agent G-570,
20-30 parts of ultra-fine inorganic fire-retardant filler, 10-15 parts of flame retardant, 4-6 parts of dispersant, 1-2 parts of antioxidant, compatilizer 5-8
Part.
A kind of 2. flame retardant automotive inside gadget material according to claim 1, it is characterised in that：The ultra-fine inorganic is fire-retardant to be filled out
Expect for magnesium hydroxide, calcined kaolin, white carbon, ammonium octamolybdate compound；Wherein, magnesium hydroxide, calcined kaolin, hard charcoal
Black, ammonium octamolybdate weight ratio is 8:(0.5-0.8):(0.2-0.4):(1-1.2).
A kind of 3. flame retardant automotive inside gadget material according to claim 2, it is characterised in that：The ultra-fine inorganic is fire-retardant to be filled out
The preparation of material is obtained by ultra-fine pulverizer disintegrating, and size controlling is in 100-150 mesh.
A kind of 4. flame retardant automotive inside gadget material according to claim 1, it is characterised in that：The flame retardant is nitrogen system
The compound of fire retardant and phosphorus flame retardant；Wherein, the weight ratio of nitrogenated flame retardant and phosphorus flame retardant is 1:(0.8-1.2).
A kind of 5. flame retardant automotive inside gadget material according to claim 4, it is characterised in that：The nitrogenated flame retardant is selected from
One or both of melamine cyanurate, melamine condensed phosphate；Phosphorus flame retardant be selected from water-soluble poly ammonium phosphate,
One or both of diethyl ethylphosphate DEEP.
A kind of 6. flame retardant automotive inside gadget material according to claim 1, it is characterised in that：The dispersant is poly- for oxidation
Any one or more in ethylene waxes, polyethylene glycol 200, polyethylene glycol 400.
A kind of 7. flame retardant automotive inside gadget material according to claim 1, it is characterised in that：The antioxidant is antioxygen
Agent 1010 and the compound of antioxidant B215；Wherein, the weight ratio of antioxidant 1010 and antioxidant B215 are 1:(0.5-0.8).
A kind of 8. flame retardant automotive inside gadget material according to claim 1, it is characterised in that：The compatilizer is maleic acid
Any one or more in bar compatilizer, compatilizer ST-6, compatilizer ST-7.
A kind of 9. preparation method of flame retardant automotive inside gadget material described in claim 1-8 any one, it is characterised in that bag
Include following steps：
Step 1：By polyurethane resin, silane coupling agent G-570, ultra-fine inorganic fire-retardant filler, flame retardant and compatilizer by matching somebody with somebody
Square ratio double screw extruder melt blending, extrudes modified flame retardant polyurethane resin master batch；
Step 2：The modification that will be obtained according to formula in flax fiber, coir fibre, dispersant, antioxidant and step 1
Flame retardant polyurethane resin master batch mixes 15-20min in high-speed mixer；
Step 3：Above-mentioned mixture is sent into double screw extruder, melt blending, extruding pelletization；It is made in a kind of flame retardant automotive
Gadget material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711402259.9A CN108003600A (en) | 2017-12-22 | 2017-12-22 | A kind of flame retardant automotive inside gadget material and preparation method thereof |
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| CN201711402259.9A CN108003600A (en) | 2017-12-22 | 2017-12-22 | A kind of flame retardant automotive inside gadget material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306173A (en) * | 2018-09-25 | 2019-02-05 | 合肥巧织纺织科技有限公司 | A kind of high intensity scratch resistance instrument board specific complex plastics |
| CN109837927A (en) * | 2019-02-27 | 2019-06-04 | 武汉大学 | A kind of shock resistance composite protection structure for building of paddling |
| CN114539731A (en) * | 2022-02-09 | 2022-05-27 | 佛山市鑫诚环保新材料有限公司 | Flame-retardant material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939338A (en) * | 2010-06-03 | 2013-02-20 | 陶氏环球技术有限责任公司 | Halogen-free, flame retardant tpu composite |
| CN103342889A (en) * | 2013-07-19 | 2013-10-09 | 深圳市优力新材料有限公司 | Novel halogen-free flame-retardant thermoplastic polyurethane composite material and preparation method thereof |
| CN105038191A (en) * | 2015-09-21 | 2015-11-11 | 东莞市盟大塑化科技有限公司 | Halogen-free flame retardant thermoplastic elastomer and preparation method thereof |
| CN105829466A (en) * | 2013-12-20 | 2016-08-03 | 日华化学株式会社 | Flame retardant coating agent for vehicle seat, and manufacturing method for flame-retardant vehicle seat material |
| CN106832884A (en) * | 2017-01-22 | 2017-06-13 | 江苏欣润塑胶有限公司 | A kind of halogen-free flame-retardant TPU |
-
2017
- 2017-12-22 CN CN201711402259.9A patent/CN108003600A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939338A (en) * | 2010-06-03 | 2013-02-20 | 陶氏环球技术有限责任公司 | Halogen-free, flame retardant tpu composite |
| CN103342889A (en) * | 2013-07-19 | 2013-10-09 | 深圳市优力新材料有限公司 | Novel halogen-free flame-retardant thermoplastic polyurethane composite material and preparation method thereof |
| CN105829466A (en) * | 2013-12-20 | 2016-08-03 | 日华化学株式会社 | Flame retardant coating agent for vehicle seat, and manufacturing method for flame-retardant vehicle seat material |
| CN105038191A (en) * | 2015-09-21 | 2015-11-11 | 东莞市盟大塑化科技有限公司 | Halogen-free flame retardant thermoplastic elastomer and preparation method thereof |
| CN106832884A (en) * | 2017-01-22 | 2017-06-13 | 江苏欣润塑胶有限公司 | A kind of halogen-free flame-retardant TPU |
Non-Patent Citations (2)
| Title |
|---|
| 冯亚青 王利军等: "《助剂化学及工艺学》", 30 June 1997, 化学工业出版社 * |
| 王紫潇: "用于聚氨酯材料的无卤添加型阻燃剂研究进展", 《聚氨酯工业》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306173A (en) * | 2018-09-25 | 2019-02-05 | 合肥巧织纺织科技有限公司 | A kind of high intensity scratch resistance instrument board specific complex plastics |
| CN109837927A (en) * | 2019-02-27 | 2019-06-04 | 武汉大学 | A kind of shock resistance composite protection structure for building of paddling |
| CN114539731A (en) * | 2022-02-09 | 2022-05-27 | 佛山市鑫诚环保新材料有限公司 | Flame-retardant material and preparation method thereof |
| CN114539731B (en) * | 2022-02-09 | 2023-06-13 | 佛山市鑫诚环保新材料有限公司 | Flame-retardant material and preparation method thereof |
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Application publication date: 20180508 |