CN108997736A - A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer - Google Patents
A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer Download PDFInfo
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- CN108997736A CN108997736A CN201810488676.8A CN201810488676A CN108997736A CN 108997736 A CN108997736 A CN 108997736A CN 201810488676 A CN201810488676 A CN 201810488676A CN 108997736 A CN108997736 A CN 108997736A
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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
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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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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Abstract
The present invention relates to a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomers, by weight, including following components: 60-80 parts of thermoplastic polyurethane, 30-45 parts of paraphenylene diisocyanate, 40-55 parts of epoxy resin, 5-9 parts of graphene oxide, 23-26 parts of butanone, 1-3 parts of antimony oxide, 15-18 parts of fire retardant A, 17-19 parts of fire retardant B, 7-11 parts of lubricant, 5-8 parts of antioxidant, 5-7 parts of chain extender；The invention discloses a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomers, while reaching good anti-flammability, it ensure that the preferable mechanical performances such as the original high tensile of thermoplastic polyurethane elastomer and elongation at break, and there is good wearability, tear resistance, hydrolytic resistance and ageing resistance.
Description
Technical field
The present invention relates to a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomers, belong to flame retarded polymeric material technical field.
Background technique
Thermoplastic polyurethane elastomer has good elasticity, wearability, lower temperature resistance, oil resistivity and tensile strength, because
This, extensive utilization has been obtained in polymeric material field, has been made in the prior art to thermoplastic polyurethane elastomer
Used time is usually used in making castor, the sheath of wire and cable, sealing due to the superperformance of thermoplastic polyurethane elastomer itself
Part, synthetic leather, damping block etc., but existing flame retardant thermoplastic polyurethane elastomer itself belongs to inflammable product, is easy burning,
Therefore, thermoplastic polyurethane elastomer is carrying out needing the modeling of strict control in use, have the environment used certain requirement
The use environment of property polyurethane elastomer, can bring certain difficulty to the use of plastic polyurethane elastomer in this way, how right
Thermoplastic polyurethane elastomer is modified, and the flame retardant property for effectively improving thermoplastic polyurethane elastomer becomes numerous institutes of producer
It solves the problems, such as.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provides a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer,
To solve problems of the prior art.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer, by weight, including following components: thermoplastic polyurethane 60-80
Part, 30-45 parts of paraphenylene diisocyanate, 40-55 parts of epoxy resin, 5-9 parts of graphene oxide, 23-26 parts of butanone, three oxidations two
1-3 parts of antimony, 15-18 parts of fire retardant A, 17-19 parts of fire retardant B, 7-11 parts of lubricant, 5-8 parts of antioxidant, chain extender 5-7
Part.
As an improvement of the present invention, the chain extender is the mixture of ethylene glycol, methyl propanediol.
As an improvement of the present invention, the ethylene glycol, methyl propanediol mass ratio be 3:7.
As an improvement of the present invention, the lubricant is stearic acid.
As an improvement of the present invention, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) third
Acid] pentaerythritol ester.
As an improvement of the present invention, the fire retardant A is melamine, phosphinate, dimethyl methyl phosphonate
Mixture.
As an improvement of the present invention, the melamine, phosphinate, dimethyl methyl phosphonate mass ratio be 3:
2:5。
As an improvement of the present invention, the fire retardant B be dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide it is mixed
Close object.
As an improvement of the present invention, the dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide mass ratio be 1:2:
2。
As an improvement of the present invention, comprising the following steps: (1) be heated to 100- for 60-80 parts of thermoplastic polyurethane
108 DEG C and after stirring 10-15 minutes, it is added graphene oxide 5-9 parts, and mixture is made to be stirred 9- at 100-103 DEG C
13 minutes；
(2) after 115-125 DEG C being mixed and heated to, paraphenylene diisocyanate 30-45 parts is added into mixture and is stirred
After 40-50 minutes, mixture temperature is down to 100-105 DEG C, 15-18 parts of fire retardant A is added and is stirred 20-30 minutes
Afterwards, mixture is dehydrated 2-2.5 hours at ﹣ 0.1- ﹣ 0.18Mpa；
(3) mixture is uniformly poured into mold, after mixture is cooled to room temperature and stands 1-2 days, by mold be put into
It is taken out after carrying out drying in drying box 10-13 hours, obtains thermoplastic polyurethane thin slice；
(4) under 40-55 parts of epoxy resin being heated to 90-95 DEG C and are stirred after 11-13 minutes, lubricant 7-11 parts of addition, and
After so that mixture is stirred 10-14 minutes at 105-110 DEG C；It is added antioxidant 5-8 parts, 17-19 parts of fire retardant B exists
3000-4000r/min stirring lower mixing 20-35 minutes；
(5) solution made from 1/2 step (4) is uniformly applied to the surface of the thermoplastic polyurethane thin slice that step (3) obtains,
And solidification 5-8 hours is carried out after thermoplastic polyurethane thin slice is heated to 50-53 DEG C；By solution made from remaining 1/2 step (4)
Continue to smoothen, the thermoplastic polyurethane thin slice after smoothening carries out solidification 6-10 hours after being heated to 70-80 DEG C, after solidification
Thermoplastic polyurethane thin slice stand 9-10 hours, be cooled to room temperature to thermoplastic polyurethane thin slice, and place 5-6 at room temperature
It；
(6) the thermoplastic polyurethane thin slice after placement is put into and is crushed into grinding device, and thin slice is broken into partial size
For the single-size of 5-6mm；
(7) 23-26 parts of butanone, 1-3 parts of antimony oxide, 5-7 parts of chain extender and process step (6) smashed particle are added
Enter into double-screw extruding pelletizing machine, and squeezed out after melt blending at 190-200 DEG C, will squeeze out that material strip is water cooled, dries up, cuts
The environmentally-friendly flame retardant thermoplastic polyurethane elastomer is made in grain.
Due to using the above technology, the present invention compared with the prior art, is had the advantage that as follows:
The invention discloses a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomers, while reaching good anti-flammability, guarantee
The preferable mechanical performance such as the original high tensile of thermoplastic polyurethane elastomer and elongation at break, and have good
Wearability, tear resistance, hydrolytic resistance and ageing resistance；The invention discloses a kind of environmentally-friendly flame retardant thermoplastic polyurethane elasticity
Body, can achieve the V-0 combustion rating with a thickness of 3.0mm measured according to UL94, and oxygen index (OI) reaches 28 or more.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated.
Embodiment 1:
A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer, by weight, including following components: 60 parts of thermoplastic polyurethane,
45 parts of paraphenylene diisocyanate, 40 parts of epoxy resin, 9 parts of graphene oxide, 23 parts of butanone, 3 parts of antimony oxide, fire retardant A
15 parts, 19 parts of fire retardant B, 7 parts of lubricant, 8 parts of antioxidant, 5 parts of chain extender.
The chain extender is the mixture of ethylene glycol, methyl propanediol.
The ethylene glycol, methyl propanediol mass ratio be 3:7.
The lubricant is stearic acid.
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
The fire retardant A is the mixture of melamine, phosphinate, dimethyl methyl phosphonate.
The melamine, phosphinate, dimethyl methyl phosphonate mass ratio be 3:2:5.
The fire retardant B is the mixture of dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide.
The dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide mass ratio be 1:2:2.
A kind of preparation method of environmentally-friendly flame retardant thermoplastic polyurethane elastomer, comprising the following steps: (1) thermoplastic polyurethane
60 parts are heated to 100 DEG C and stir after ten minutes, are added 9 parts of graphene oxide, and mixture is made to be stirred 9 at 103 DEG C
Minute；
(2) after 125 DEG C being mixed and heated to, 45 parts of paraphenylene diisocyanate is added into mixture and is stirred 40 minutes
Afterwards, mixture temperature is down to 105 DEG C, 15 parts of fire retardant A is added and be stirred after twenty minutes, by mixture in ﹣ 0.1- ﹣
It is dehydrated 2.5 hours under 0.18Mpa；
(3) mixture is uniformly poured into mold, after mixture is cooled to room temperature and stands 1 day, mold is put into baking
It is taken out after carrying out drying in dry case 13 hours, obtains thermoplastic polyurethane thin slice；
(4) after being heated to 90 DEG C by 40 parts of epoxy resin and stir lower 13 minutes, 7 parts of lubricant are added, and make mixture 110
It is stirred after ten minutes at DEG C；8 parts of antioxidant is added, 19 parts of fire retardant B is mixed 20 minutes under 4000r/min stirring；
(5) solution made from 1/2 step (4) is uniformly applied to the surface of the thermoplastic polyurethane thin slice that step (3) obtains,
And solidification 5 hours is carried out after thermoplastic polyurethane thin slice is heated to 53 DEG C；Solution made from remaining 1/2 step (4) is continued
It smoothens, the thermoplastic polyurethane thin slice after smoothening carries out solidification 6 hours after being heated to 80 DEG C, by the thermoplastic poly after solidification
Urethane thin slice stands 10 hours, is cooled to room temperature to thermoplastic polyurethane thin slice, and places 5 days at room temperature；
(6) the thermoplastic polyurethane thin slice after placement is put into and is crushed into grinding device, and thin slice is broken into partial size
For the single-size of 6mm；
(7) 23 parts of butanone, 3 parts of antimony oxide, 5 parts of chain extender and process step (6) smashed particle are added to double
It in screw extruder pelletizer, and is squeezed out after melt blending at 200 DEG C, water cooled material strip will be squeezed out, drying, pelletizing are made described
Environmentally-friendly flame retardant thermoplastic polyurethane elastomer.
The performance of obtained environmentally-friendly flame retardant thermoplastic polyurethane elastomer is as follows: 25 DEG C of hardness (shore A) 93, stretches strong
Spend (Mpa) 35.3；Tearing strength (Mpa) 105；Tensile set (%) 48；Elasticity modulus (Mpa) 91；Anti-flammability (UL94) V-
0(3mm)。
Embodiment 2:
A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer, by weight, including following components: 80 parts of thermoplastic polyurethane,
30 parts of paraphenylene diisocyanate, 55 parts of epoxy resin, 5 parts of graphene oxide, 26 parts of butanone, 1 part of antimony oxide, fire retardant A
18 parts, 17 parts of fire retardant B, 11 parts of lubricant, 5 parts of antioxidant, 7 parts of chain extender.
The chain extender is the mixture of ethylene glycol, methyl propanediol.
The ethylene glycol, methyl propanediol mass ratio be 3:7.
The lubricant is stearic acid.
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
The fire retardant A is the mixture of melamine, phosphinate, dimethyl methyl phosphonate.
The melamine, phosphinate, dimethyl methyl phosphonate mass ratio be 3:2:5.
The fire retardant B is the mixture of dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide.
The dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide mass ratio be 1:2:2.
A kind of preparation method of environmentally-friendly flame retardant thermoplastic polyurethane elastomer, comprising the following steps: (1) by thermoplastic poly ammonia
After 80 parts of ester are heated to 108 DEG C and stir 15 minutes, 5 parts of graphene oxide are added, and be stirred mixture at 100 DEG C
13 minutes；
(2) after 115 DEG C being mixed and heated to, 30 parts of paraphenylene diisocyanate is added into mixture and is stirred 50 minutes
Afterwards, mixture temperature is down to 100 DEG C, after 18 parts of fire retardant A is added and is stirred 30 minutes, by mixture in ﹣ 0.1- ﹣
It is dehydrated 2 hours under 0.18Mpa；
(3) mixture is uniformly poured into mold, after mixture is cooled to room temperature and stands 2 days, mold is put into baking
It is taken out after carrying out drying in dry case 10 hours, obtains thermoplastic polyurethane thin slice；
(4) after being heated to 95 DEG C by 55 parts of epoxy resin and stir lower 11 minutes, 11 parts of lubricant are added, and mixture is made to exist
It is stirred after ten minutes at 110 DEG C；17 parts of 5 parts of antioxidant, fire retardant B 20 points of mixing under 4000r/min stirring is added
Clock；
(5) solution made from 1/2 step (4) is uniformly applied to the surface of the thermoplastic polyurethane thin slice that step (3) obtains,
And solidification 5 hours is carried out after thermoplastic polyurethane thin slice is heated to 53 DEG C；Solution made from remaining 1/2 step (4) is continued
It smoothens, the thermoplastic polyurethane thin slice after smoothening carries out solidification 6 hours after being heated to 80 DEG C, by the thermoplastic poly after solidification
Urethane thin slice stands 10 hours, is cooled to room temperature to thermoplastic polyurethane thin slice, and places 5 days at room temperature；
(6) the thermoplastic polyurethane thin slice after placement is put into and is crushed into grinding device, and thin slice is broken into partial size
For the single-size of 5-6mm；
(7) 26 parts of butanone, 1 part of antimony oxide, 7 parts of chain extender and process step (6) smashed particle are added to double
It in screw extruder pelletizer, and is squeezed out after melt blending at 200 DEG C, water cooled material strip will be squeezed out, drying, pelletizing are made described
Environmentally-friendly flame retardant thermoplastic polyurethane elastomer.
The performance of obtained environmentally-friendly flame retardant thermoplastic polyurethane elastomer is as follows: 25 DEG C of hardness (shore A) 92, stretches strong
Spend (Mpa) 35.1；Tearing strength (Mpa) 104；Tensile set (%) 47；Elasticity modulus (Mpa) 90；Anti-flammability (UL94) V-
0(3mm)。
Embodiment 3:
A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer, by weight, including following components: 70 parts of thermoplastic polyurethane,
40 parts of paraphenylene diisocyanate, 51 parts of epoxy resin, 8 parts of graphene oxide, 25 parts of butanone, 2 parts of antimony oxide, fire retardant A
17 parts, 18 parts of fire retardant B, 9 parts of lubricant, 7 parts of antioxidant, 6 parts of chain extender.
The chain extender is the mixture of ethylene glycol, methyl propanediol.
The ethylene glycol, methyl propanediol mass ratio be 3:7.
The lubricant is stearic acid.
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
The fire retardant A is the mixture of melamine, phosphinate, dimethyl methyl phosphonate.
The melamine, phosphinate, dimethyl methyl phosphonate mass ratio be 3:2:5.
The fire retardant B is the mixture of dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide.
The dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide mass ratio be 1:2:2.
A kind of preparation method of environmentally-friendly flame retardant thermoplastic polyurethane elastomer, comprising the following steps: (1) by thermoplastic poly ammonia
After 70 parts of ester are heated to 106 DEG C and stir 12 minutes, 8 parts of graphene oxide are added, and be stirred mixture at 101 DEG C
9-13 minutes；
(2) after 115 DEG C being mixed and heated to, 40 parts of paraphenylene diisocyanate is added into mixture and is stirred 40 minutes
Afterwards, mixture temperature is down to 105 DEG C, 17 parts of fire retardant A is added and be stirred after twenty minutes, by mixture in ﹣ 0.1- ﹣
It is dehydrated 2.5 hours under 0.18Mpa；
(3) mixture is uniformly poured into mold, after mixture is cooled to room temperature and stands 1 day, mold is put into baking
It is taken out after carrying out drying in dry case 13 hours, obtains thermoplastic polyurethane thin slice；
(4) after being heated to 92 DEG C by 51 parts of epoxy resin and stir lower 11 minutes, 9 parts of lubricant are added, and make mixture 110
After being stirred 12 minutes at DEG C；7 parts of antioxidant, 18 parts of fire retardant B is added 20-35 points of mixing under 4000r/min stirring
Clock；
(5) solution made from 1/2 step (4) is uniformly applied to the surface of the thermoplastic polyurethane thin slice that step (3) obtains,
And solidification 8 hours is carried out after thermoplastic polyurethane thin slice is heated to 50 DEG C；Solution made from remaining 1/2 step (4) is continued
It smoothens, the thermoplastic polyurethane thin slice after smoothening carries out solidification 10 hours after being heated to 70 DEG C, by the thermoplasticity after solidification
Sheet of polyurethane stands 9 hours, is cooled to room temperature to thermoplastic polyurethane thin slice, and places 6 days at room temperature；
(6) the thermoplastic polyurethane thin slice after placement is put into and is crushed into grinding device, and thin slice is broken into partial size
For the single-size of 5-6mm；
(7) 25 parts of butanone, 2 parts of antimony oxide, 6 parts of chain extender and process step (6) smashed particle are added to double
It in screw extruder pelletizer, and is squeezed out after melt blending at 190 DEG C, water cooled material strip will be squeezed out, drying, pelletizing are made described
Environmentally-friendly flame retardant thermoplastic polyurethane elastomer.
The performance of obtained environmentally-friendly flame retardant thermoplastic polyurethane elastomer is as follows: 25 DEG C of hardness (shore A) 91, stretches strong
Spend (Mpa) 35.4；Tearing strength (Mpa) 106；Tensile set (%) 45；Elasticity modulus (Mpa) 90；Anti-flammability (UL94) V-
0(3mm)。
Above-described embodiment is only the preferred technical solution of the present invention, and is not construed as limitation of the invention, the present invention
Protection scope should with claim record technical solution, including claim record technical solution in technical characteristic etc.
It is protection scope with alternative, i.e., equivalent replacement within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer, which is characterized in that by weight, including following components: thermoplastic
Property 60-80 parts of polyurethane, 30-45 parts of paraphenylene diisocyanate, 40-55 parts of epoxy resin, 5-9 parts of graphene oxide, butanone 23-
26 parts, 1-3 parts of antimony oxide, 15-18 parts of fire retardant A, 17-19 parts of fire retardant B, 7-11 parts of lubricant, antioxidant 5-8
Part, 5-7 parts of chain extender.
2. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer according to claim 1, it is characterised in that: the chain extender
For ethylene glycol, the mixture of methyl propanediol.
3. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer according to claim 2, it is characterised in that: the second two
Alcohol, methyl propanediol mass ratio be 3:7.
4. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer according to claim 1, it is characterised in that: the lubrication
Agent is stearic acid.
5. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer according to claim 1, it is characterised in that: described anti-oxidant
Agent is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
6. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer according to claim 1, it is characterised in that: the fire retardant
A is the mixture of melamine, phosphinate, dimethyl methyl phosphonate.
7. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer according to claim 6, it is characterised in that: the melamine
Amine, phosphinate, dimethyl methyl phosphonate mass ratio be 3:2:5.
8. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer according to claim 1, it is characterised in that: the fire retardant
B is the mixture of dicyandiamide, triphenyl phosphate, nano-aluminum hydroxide.
9. a kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer according to claim 8, it is characterised in that: double cyanogen
Amine, triphenyl phosphate, nano-aluminum hydroxide mass ratio be 1:2:2.
10. a kind of preparation method of the environmentally-friendly flame retardant thermoplastic polyurethane elastomer as described in any one of claim 1-9, special
Sign is, comprising the following steps: (1) after being heated to 100-108 DEG C by 60-80 parts of thermoplastic polyurethane and stirring 10-15 minutes,
It is added graphene oxide 5-9 parts, and is stirred mixture at 100-103 DEG C 9-13 minutes；
(2) after 115-125 DEG C being mixed and heated to, paraphenylene diisocyanate 30-45 parts is added into mixture and is stirred
After 40-50 minutes, mixture temperature is down to 100-105 DEG C, 15-18 parts of fire retardant A is added and is stirred 20-30 minutes
Afterwards, mixture is dehydrated 2-2.5 hours at ﹣ 0.1- ﹣ 0.18Mpa；
(3) mixture is uniformly poured into mold, after mixture is cooled to room temperature and stands 1-2 days, by mold be put into
It is taken out after carrying out drying in drying box 10-13 hours, obtains thermoplastic polyurethane thin slice；
(4) under 40-55 parts of epoxy resin being heated to 90-95 DEG C and are stirred after 11-13 minutes, lubricant 7-11 parts of addition, and
After so that mixture is stirred 10-14 minutes at 105-110 DEG C；It is added antioxidant 5-8 parts, 17-19 parts of fire retardant B exists
3000-4000r/min stirring lower mixing 20-35 minutes；
(5) solution made from 1/2 step (4) is uniformly applied to the surface of the thermoplastic polyurethane thin slice that step (3) obtains,
And solidification 5-8 hours is carried out after thermoplastic polyurethane thin slice is heated to 50-53 DEG C；By solution made from remaining 1/2 step (4)
Continue to smoothen, the thermoplastic polyurethane thin slice after smoothening carries out solidification 6-10 hours after being heated to 70-80 DEG C, after solidification
Thermoplastic polyurethane thin slice stand 9-10 hours, be cooled to room temperature to thermoplastic polyurethane thin slice, and place 5-6 at room temperature
It；
(6) the thermoplastic polyurethane thin slice after placement is put into and is crushed into grinding device, and thin slice is broken into partial size
For the single-size of 5-6mm；
(7) 23-26 parts of butanone, 1-3 parts of antimony oxide, 5-7 parts of chain extender and process step (6) smashed particle are added
Enter into double-screw extruding pelletizing machine, and squeezed out after melt blending at 190-200 DEG C, will squeeze out that material strip is water cooled, dries up, cuts
The environmentally-friendly flame retardant thermoplastic polyurethane elastomer is made in grain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488676.8A CN108997736A (en) | 2018-05-21 | 2018-05-21 | A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488676.8A CN108997736A (en) | 2018-05-21 | 2018-05-21 | A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer |
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Family
ID=64572864
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| CN201810488676.8A Pending CN108997736A (en) | 2018-05-21 | 2018-05-21 | A kind of environmentally-friendly flame retardant thermoplastic polyurethane elastomer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003597A (en) * | 2019-02-28 | 2019-07-12 | 常州苏通海平机电科技有限公司 | A kind of high strength heat resistant cable jacket material |
| CN112721364A (en) * | 2021-01-20 | 2021-04-30 | 嘉兴市博尔新材料有限公司 | Mildew-proof wear-resistant environment-friendly PVC artificial leather and preparation method thereof |
-
2018
- 2018-05-21 CN CN201810488676.8A patent/CN108997736A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003597A (en) * | 2019-02-28 | 2019-07-12 | 常州苏通海平机电科技有限公司 | A kind of high strength heat resistant cable jacket material |
| CN112721364A (en) * | 2021-01-20 | 2021-04-30 | 嘉兴市博尔新材料有限公司 | Mildew-proof wear-resistant environment-friendly PVC artificial leather and preparation method thereof |
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