CN104497551A - Low-odor inflaming retarding thermoplastic polyurethane elastomer and preparation method thereof - Google Patents
Low-odor inflaming retarding thermoplastic polyurethane elastomer and preparation method thereof Download PDFInfo
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- CN104497551A CN104497551A CN201510026241.8A CN201510026241A CN104497551A CN 104497551 A CN104497551 A CN 104497551A CN 201510026241 A CN201510026241 A CN 201510026241A CN 104497551 A CN104497551 A CN 104497551A
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Abstract
The invention relates to a low-odor inflaming retarding thermoplastic polyurethane elastomer and a preparation method thereof. The low-odor inflaming retarding thermoplastic polyurethane elastomer comprises 66-90 parts of a thermoplastic polyurethane elastomer, 10-30 parts of a fire retardant, 0.1-0.5 part of an antioxidant and 0.2-2 parts of a deodorant. The preparation method of the low-odor inflaming retarding thermoplastic polyurethane elastomer comprises the following steps: (1) weighing and putting 66-90 parts of the thermoplastic polyurethane elastomer into a high-speed mixer; after the moisture content of the thermoplastic polyurethane elastomer is less than 0.01%, stopping dehydrating; (2) adding 10-30 parts of the fire retardant, 0.1-0.5 part of the antioxidant and 0.2-2 parts of the deodorant into the high-speed mixer, and mixing to form a premix; and (3) putting the premix into a double-screw-rod extruder to be extruded, and granulating and drying to obtain the product. The low-odor inflaming retarding thermoplastic polyurethane elastomer and the preparation method thereof, provided by the invention, have the following beneficial effects that the volatilization amount is low and the mechanical performance is good.
Description
Technical field
The invention belongs to polymeric material field, be specifically related to a kind of low smell flame retardant thermoplastic polyurethane elastomer and preparation method thereof.
Background technology
Automotive trim and functional parts comprise the dividing plate, floor, instrument desk, bearing circle, air-conditioning outfall sewer, handrail, luggage holder etc. in compartment.Along with the development of macromolecular material, some parts can be recycled, and material security material high, easy to process is more and more used on automotive trim.
The inside gadget of current many automobiles has progressively used Polyurethane Thermoplastic Elastomer (TPU); because it has good elasticity body performance and can thermoplastic processibility; fabulous wear resistance, low temperature flexibility, good physical and mechanical properties; excellent hydrolysis, oil resistant, solvent resistance; more important its is that one can recycling; and the material that can degrade, has important contribution to environment protection, be therefore subject to the extensive welcome of people.
Along with the continuous enhancing that the growing of automotive industry and human consumer realize environment protection health, people require that in car, air is fresh, nontoxic, and quality is good.In car, volatile harmful material attracts attention, and the problem of smell attracts attention.In car, the source of smell is many-sided, and the volatile matter of automotive interior part is the one of the main reasons affecting in-car air quality.Macromolecule product more and more uses in automotive interior part, what it contained has volatile organic compound: low molecular alkane, alkene, aromatic hydrocarbons, aldehyde, ketone material, these materials when temperature is slightly high in car, can volatilizes and make us uncomfortable smell, even can cause headache, allergy, the uncomfortable reaction such as faintness.
For odor problem, each large automaker to these volatile objectionable impuritiess specification in addition, and has formulated relevant criterion, as Volkswagen VW ' s PV3900 standard, it adopts 1 ~ 6 grade of evaluation, and rank is higher, smell is larger, is less than or equal to 3 grades and just can meets the demands; Yitong Passenger Train Co adopts the standard of VDA 270-1992-10 to test, the judgement criteria of 1 ~ 5 grade, and rank is higher, and smell is larger, is less than or equal to 3.5 grades and just can meets the demands, and the standard of the present invention and employing VDA 270-1992-10 carries out test evaluation.
Polyurethane Thermoplastic Elastomer oxygen index is about 18, belong to inflammable product, if product has flame-retardancy requirements, such as reach the flame retardant rating of UL 94 V-1/V-2/V-0, just must adding fire retardant and carry out modification, in order to increase the consistency of fire retardant and thermoplastic polyurethane, in fire retardant, some compatilizers can be added, some compatilizer at high temperature can gasify volatilization, and the micromolecule additive in addition in Polyurethane Thermoplastic Elastomer can gasify volatilization under the high temperature conditions equally.Micromolecular gasification volatilization can produce comparatively niff, causes product cannot reach the requirement of automotive trim for product odour.
Mention in Chinese invention patent " a kind of low odor polypropylene composition and method of making the same " (Authorization Notice No.: CN 102061036 B) and use odor suppressing agents to carry out taste removal to polypropylene composite material, its principle uses the material of vesicular structure to adsorb smell.(application number: 200510026760.0) propose a kind of superabsorbent composition absorbing gas comprises smell sticking agent (amino acid, zinc ricinate mixture) to Chinese invention patent " a kind of polypropylene composite of low smell ".
Patent is rarely had to solve the odor problem of flame retardant thermoplastic polyurethane elastomer at present, this patent is in conjunction with traditional deflavoring method, and the smell removed targetedly in flame retardant thermoplastic polyurethane elastomer product, disclose a kind of flame retardant thermoplastic polyurethane elastomer of low smell.
Summary of the invention
Goal of the invention: for solving the problems of the technologies described above, first object of the present invention discloses a kind of low smell flame retardant thermoplastic polyurethane elastomer; Second object of the present invention discloses a kind of method preparing this low smell flame retardant thermoplastic polyurethane elastomer.
Technical scheme: a kind of low smell flame retardant thermoplastic polyurethane elastomer, composed of the following components, be expressed as with parts by weight:
Polyurethane Thermoplastic Elastomer: 66 ~ 90 parts;
Fire retardant: 10 ~ 30 parts;
Oxidation inhibitor: 0.1 ~ 0.5 part;
Deodovization agent: 0.2 ~ 2 part.
As a kind of preferred version of a kind of low smell flame retardant thermoplastic polyurethane elastomer disclosed by the invention, described Polyurethane Thermoplastic Elastomer is polyester type Polyurethane Thermoplastic Elastomer or Polyether-type thermoplastic polyurethane elastomer.
As a kind of preferred version of a kind of low smell flame retardant thermoplastic polyurethane elastomer disclosed by the invention, described fire retardant is one or more in triphenylphosphate, phosphate toluene diphenyl ester, triethyl phosphate, Resorcinol two (diphenyl phosphoester), tripoly phosphate sodium STPP.
As a kind of preferred version of a kind of low smell flame retardant thermoplastic polyurethane elastomer disclosed by the invention, described oxidation inhibitor is the phenolic antioxidant that molar mass is greater than 600g/mol.
Further; phenolic antioxidant is tetramethylolmethane four (3-(3; 5-bis-(1; 1-dimethyl ethyl)-4-hydroxy phenyl) propionic ester), 3; 5-di-t-butyl-4 hydroxy-phenylpropionic acid octadecanol ester, N; N-pair-[3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl hexanediamine, 3; the different monooctyl ester of 5-di-t-butyl-4-hydroxy phenylpropionic acid, 1,3,5-trimethylammonium-2; 4; one in 6-tri-(3,5-di-t-butyl-4, hydroxybenzene) benzene.
As a kind of preferred version of a kind of low smell flame retardant thermoplastic polyurethane elastomer disclosed by the invention, described deodovization agent is composed of the following components, is expressed as with parts by weight: 30 ~ 50 parts, zeolite, clay 20 ~ 30 parts, hydroxyapatite 10 ~ 20 parts, zinc ricinate 15 ~ 25 parts.
A kind of above-mentioned low smell method for preparing fire retardant thermoplastic polyurethane elastomer, comprises the following steps:
(1) taking 66 ~ 90 parts of Polyurethane Thermoplastic Elastomer adds in high mixer, and dewater 6 ~ 9min at 60 ~ 80 DEG C, after the moisture of described Polyurethane Thermoplastic Elastomer is less than 0.01%, stop dehydration;
(2) respectively to adding 10 ~ 30 parts of fire retardants, 0.1 ~ 0.5 part of oxidation inhibitor and 0.2 ~ 2 part of deodovization agent in high mixer, mixing 1 ~ 3min under the low speed, forming Preblend;
(3) Preblend in step (2) is positioned over twin screw extruder, temperature controls at 160 ~ 175 DEG C, melt extrude under the condition that screw speed is 180 ~ 240 revs/min, after granulating and drying, obtain low smell flame retardant thermoplastic polyurethane elastomer.
Beneficial effect: low smell flame retardant thermoplastic polyurethane elastomer of one disclosed by the invention and preparation method thereof, has following beneficial effect:
1, in conjunction with the characteristic of flame retardant thermoplastic polyurethane elastomer when high temperature process, by add cellular structure material as: zeolite, clay, hydroxylapatite adsorption small-molecule substance, be combined into macromole by chemical reaction by small-molecule substance simultaneously and make it reduce volatile quantity;
2, this well controls the smell of flame retardant thermoplastic polyurethane elastomer, and can keep the mechanical property that material itself is good.
Embodiment:
Below the specific embodiment of the present invention is described in detail.
Specific embodiment 1:
A kind of low smell method for preparing fire retardant thermoplastic polyurethane elastomer, comprises the following steps:
(1) 66 parts of polyester type Polyurethane Thermoplastic Elastomer (E185 are taken, Shandong Mei Rui novel material company limited produces) add in high mixer, dewater 9min at 60 DEG C, after the moisture of polyester type Polyurethane Thermoplastic Elastomer is less than 0.01%, stop dehydration;
(2) respectively to adding 10 portions of triphenylphosphates, 0.1 part of tetramethylolmethane four (3-(3 in high mixer, 5-bis-(1,1-dimethyl ethyl)-4-hydroxy phenyl) propionic ester) and 0.2 part of deodovization agent, mix 1min under the low speed, form Preblend;
(3) Preblend in step (2) is positioned over twin screw extruder, temperature controls, at 160 DEG C, to melt extrude under the condition that screw speed is 240 revs/min, obtains low smell flame retardant thermoplastic polyurethane elastomer after granulating and drying.
Deodovization agent wherein in step (2) is expressed as with parts by weight: 30 parts, zeolite, clay 20 parts, hydroxyapatite 10 parts, zinc ricinate 15 parts.
Specific embodiment 2:
A kind of low smell method for preparing fire retardant thermoplastic polyurethane elastomer, comprises the following steps:
(1) 90 parts of polyether thermoplastic's elastic polyurethane (M85 are taken, Shandong Mei Rui novel material company limited produces) body adds in high mixer, dewater 6min at 80 DEG C, after the moisture of described Polyurethane Thermoplastic Elastomer is less than 0.01%, stop dehydration;
(2) respectively to adding 30 parts of phosphate toluene diphenyl esters, 0.5 part of 3,5-di-t-butyl-4 hydroxy-phenylpropionic acid octadecanol ester and 2 parts of deodovization agents in high mixer, mixing 3min under the low speed, forming Preblend;
(3) Preblend in step (2) is positioned over twin screw extruder, temperature controls, at 175 DEG C, to melt extrude under the condition that screw speed is 180 revs/min, obtains low smell flame retardant thermoplastic polyurethane elastomer after granulating and drying.
Wherein in step (2), deodovization agent is composed of the following components, is expressed as: 50 parts, zeolite, clay 30 parts, hydroxyapatite 20 parts, zinc ricinate 25 parts with parts by weight.
Specific embodiment 3
A kind of low smell method for preparing fire retardant thermoplastic polyurethane elastomer, comprises the following steps:
(1) taking 90 parts of polyester type Polyurethane Thermoplastic Elastomer adds in high mixer, and dewater 7min at 70 DEG C, after the moisture of described Polyurethane Thermoplastic Elastomer is less than 0.01%, stop dehydration;
(2) respectively to add in high mixer 20 parts of triethyl phosphates, 0.3 part of N, N-two-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl hexanediamine and 1 part of deodovization agent, mix 2min under the low speed, forms Preblend;
(3) Preblend in step (2) is positioned over twin screw extruder, temperature controls, at 170 DEG C, to melt extrude under the condition that screw speed is 200 revs/min, obtains low smell flame retardant thermoplastic polyurethane elastomer after granulating and drying.
Wherein in step (2), deodovization agent is composed of the following components, is expressed as: 40 parts, zeolite, clay 25 parts, hydroxyapatite 15 parts, zinc ricinate 20 parts with parts by weight.
Specific embodiment 4:
Roughly the same with specific embodiment 1, difference is:
1, fire retardant is 10 parts of Resorcinols two (diphenyl phosphoester) and 10 parts of tripoly phosphate sodium STPPs.
2, oxidation inhibitor changes 0.1 part of 3,5-different monooctyl ester of di-t-butyl-4-hydroxy phenylpropionic acid into by 0.1 part of tetramethylolmethane four (3-(3,5-bis-(1,1-dimethyl ethyl)-4-hydroxy phenyl) propionic ester).
Specific embodiment 5:
Roughly the same with specific embodiment 1, it is not:
1, fire retardant is 5 portions of triphenylphosphates, 5 parts of phosphate toluene diphenyl esters, 5 parts of triethyl phosphates, 5 parts of Resorcinols two (diphenyl phosphoester) and 5 parts of tripoly phosphate sodium STPPs;
2, oxidation inhibitor changes 0.1 part 1 into by 0.1 part of tetramethylolmethane four (3-(3,5-bis-(1,1-dimethyl ethyl)-4-hydroxy phenyl) propionic ester), 3,5-trimethylammonium-2,4,6-tri-(3,5-di-t-butyl-4, hydroxybenzene) benzene.
Comparative example 1:
A kind of low smell method for preparing fire retardant thermoplastic polyurethane elastomer, comprises the following steps:
(1) 66 parts of polyester type Polyurethane Thermoplastic Elastomer (E185 are taken, Shandong Mei Rui novel material company limited produces) add in high mixer, dewater 9min at 60 DEG C, after the moisture of polyester type Polyurethane Thermoplastic Elastomer is less than 0.01%, stop dehydration;
(2) respectively to adding 10 portions of triphenylphosphates, 0.1 part of tetramethylolmethane four (3-(3 in high mixer, 5-bis-(1,1-dimethyl ethyl)-4-hydroxy phenyl) propionic ester), mix 1min under the low speed, form Preblend;
(3) Preblend in step (2) is positioned over twin screw extruder, temperature controls, at 160 DEG C, to melt extrude under the condition that screw speed is 240 revs/min, obtains low smell flame retardant thermoplastic polyurethane elastomer after granulating and drying.
Comparative example 2:
A kind of low smell method for preparing fire retardant thermoplastic polyurethane elastomer, comprises the following steps:
(1) 90 parts of polyether thermoplastic's elastic polyurethane (M85 are taken, Shandong Mei Rui novel material company limited produces) body adds in high mixer, dewater 6min at 80 DEG C, after the moisture of described Polyurethane Thermoplastic Elastomer is less than 0.01%, stop dehydration;
(2) respectively to adding 30 parts of phosphate toluene diphenyl esters, 0.5 part of tetramethylolmethane four (3-(3 in high mixer, 5-bis-(1,1-dimethyl ethyl)-4-hydroxy phenyl) propionic ester), mix 3min under the low speed, form Preblend;
(3) Preblend in step (2) is positioned over twin screw extruder, temperature controls, at 160 DEG C, to melt extrude under the condition that screw speed is 240 revs/min, obtains low smell flame retardant thermoplastic polyurethane elastomer after granulating and drying.
Deodovization agent wherein in step (2) is expressed as with parts by weight: 30 parts, zeolite, clay 20 parts, hydroxyapatite 10 parts, zinc ricinate 15 parts.
The experimental data of comparative example 1 and comparative example 2 is as follows:
| Component | Standard | Unit | Comparative example 1 | Comparative example 2 |
| Melt index | ASTM D1238 | g/10min | 38.6 | 30.2 |
| Density | ASTM D792 | g/cm 3 | 1.20 | 1.15 |
| Hardness | ASTM D2240 | Shore A | 86A | 84A |
| 100% modulus | ASTM D412 | MPa | 7 | 6 |
| 300% modulus | ASTM D412 | MPa | 13 | 11 |
| Tensile strength | ASTM D412 | MPa | 30 | 25 |
| Tear strength | ASTM D412F | kN/m | 100 | 90 |
| Flame retardant rating | UL94 | Level | V-0 | V-0 |
| Oder levels | VDA 270 | Level | 4 grades | 4.5 level |
The experimental data of specific embodiment 1 ~ 5 is as follows:
| Component | Standard | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Melt index | ASTM D1238 | g/10min | 31 | 35 | 34 | 36 | 39 |
| Density | ASTM D792 | g/cm 3 | 1.15 | 1.16 | 1.17 | 1.2 | 1.21 |
| Hardness | ASTM D2240 | Shore A | 84A | 84A | 85A | 86A | 85A |
| 100% modulus | ASTM D412 | MPa | 6 | 5 | 5 | 7 | 8 |
| 300% modulus | ASTM D412 | MPa | 12 | 11 | 10 | 12 | 13 |
| Tensile strength | ASTM D412 | MPa | 24 | 24 | 20 | 28 | 29 |
| Tear strength | ASTM D412F | kN/m | 87 | 90 | 82 | 96 | 97 |
| Oder levels | VDA 270 | Level | 3.5 | 3 | 3.5 | 3 | 3.5 |
The data of specific embodiment 1 ~ 5 and the data of comparative example 1 ~ 2 are carried out contrast and can be found out, when flame retardant thermoplastic polyurethane elastomer basic components is substantially identical, after adding deodovization agent, the smell of product significantly dies down, test oder levels is below 3.5 grades, taste removal best results during deodovization agent addition 1%, can reach 3 grades.The present invention for polyester and polyether product all applicable.
Above embodiments of the present invention are elaborated.But the present invention is not limited to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Claims (7)
1. a low smell flame retardant thermoplastic polyurethane elastomer, is characterized in that, composed of the following components, is expressed as with parts by weight:
Polyurethane Thermoplastic Elastomer: 66 ~ 90 parts;
Fire retardant: 10 ~ 30 parts;
Oxidation inhibitor: 0.1 ~ 0.5 part;
Deodovization agent: 0.2 ~ 2 part.
2. a kind of low smell flame retardant thermoplastic polyurethane elastomer as claimed in claim 1, it is characterized in that, described Polyurethane Thermoplastic Elastomer is polyester type Polyurethane Thermoplastic Elastomer or Polyether-type thermoplastic polyurethane elastomer.
3. a kind of low smell flame retardant thermoplastic polyurethane elastomer as claimed in claim 1, it is characterized in that, described fire retardant is one or more in triphenylphosphate, phosphate toluene diphenyl ester, triethyl phosphate, Resorcinol two (diphenyl phosphoester), tripoly phosphate sodium STPP.
4. a kind of low smell flame retardant thermoplastic polyurethane elastomer as claimed in claim 1, it is characterized in that, described oxidation inhibitor is the phenolic antioxidant that molar mass is greater than 600g/mol.
5. a kind of low smell flame retardant thermoplastic polyurethane elastomer as claimed in claim 4; it is characterized in that; phenolic antioxidant is tetramethylolmethane four (3-(3; 5-bis-(1; 1-dimethyl ethyl)-4-hydroxy phenyl) propionic ester), 3; 5-di-t-butyl-4 hydroxy-phenylpropionic acid octadecanol ester, N; N-pair-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl hexanediamine, the different monooctyl ester of 3,5-di-t-butyl-4-hydroxy phenylpropionic acid, 1; 3; 5-trimethylammonium-2,4,6-tri-(3; 5-di-t-butyl-4, hydroxybenzene) one in benzene.
6. a kind of low smell flame retardant thermoplastic polyurethane elastomer as claimed in claim 1, it is characterized in that, described deodovization agent is composed of the following components, be expressed as with parts by weight: 30 ~ 50 parts, zeolite, clay 20 ~ 30 parts, hydroxyapatite 10 ~ 20 parts, zinc ricinate 15 ~ 25 parts.
7. the low smell method for preparing fire retardant thermoplastic polyurethane elastomer as described in claim 1 ~ 6 any one, comprises the following steps:
(1) taking 66 ~ 90 parts of Polyurethane Thermoplastic Elastomer adds in high mixer, and dewater 6 ~ 9min at 60 ~ 80 DEG C, after the moisture of described Polyurethane Thermoplastic Elastomer is less than 0.01%, stop dehydration;
(2) respectively to adding 10 ~ 30 parts of fire retardants, 0.1 ~ 0.5 part of oxidation inhibitor and 0.2 ~ 2 part of deodovization agent in high mixer, mixing 1 ~ 3min under the low speed, forming Preblend;
(3) Preblend in step (2) is positioned over twin screw extruder, temperature controls at 160 ~ 175 DEG C, melt extrude under the condition that screw speed is 180 ~ 240 revs/min, after granulating and drying, obtain low smell flame retardant thermoplastic polyurethane elastomer.
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| CN109400846A (en) * | 2018-10-27 | 2019-03-01 | 濮阳天健生物科技有限公司 | A kind of chemical reaction kettle composite insulation boards and preparation method thereof |
| CN112743704A (en) * | 2019-10-29 | 2021-05-04 | 中国石油化工股份有限公司 | Polyurethane thermoplastic elastomer and preparation method and application thereof |
| CN113637209A (en) * | 2021-10-14 | 2021-11-12 | 宁波惠之星新材料科技有限公司 | Preparation method of low-odor TPU composite release film |
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