CN106939071A - A kind of automobile massage TPU composites and preparation method thereof - Google Patents

A kind of automobile massage TPU composites and preparation method thereof Download PDF

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Publication number
CN106939071A
CN106939071A CN201710232508.8A CN201710232508A CN106939071A CN 106939071 A CN106939071 A CN 106939071A CN 201710232508 A CN201710232508 A CN 201710232508A CN 106939071 A CN106939071 A CN 106939071A
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tpu
weight
diisocyanate
parts
composites
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何建雄
王良
王一良
杨博
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Dongguan Xionglin New Materials Technology Co Ltd
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Dongguan Xionglin New Materials Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
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    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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Abstract

The present invention provides a kind of automobile massage TPU composites and preparation method thereof, and the TPU composites are obtained by TPU film and nylon cloth are compound, and the raw material of the TPU film includes following components：40 60 parts by weight diisocyanate, 30 50 weight polyols, 15 parts by weight nanometer glass fibers, 10 20 parts by weight chain extenders and 0.1 1 part by weight of catalyst.The tensile strength of the TPU composites of the present invention reaches 45 52MPa, and tearing strength is up to 80 100kgf/cm, and peel strength is up to 4.5 6.0N/mm, and water vapour permeability is 5000 6000g/m224h, and the ply adhesion of the TPU composites is all right, will not occur lamination, and comfortable feel, be suitable as automobile massage material.

Description

A kind of automobile massage TPU composites and preparation method thereof
Technical field
The invention belongs to technical field of polymer materials, it is related to a kind of TPU composites and preparation method thereof, more particularly to A kind of automobile massage TPU composites and preparation method thereof.
Background technology
Current China Automobile Industry is rapid, the requirement more and more higher with people to quality of life, automotive trim material People can not have been met for comfortable and functional requirement, such as some height by relying solely on the materials such as common PU, PVC Massage seat is installed on shelves automobile, it is good that its material for being used for massage seat needs to meet comfortable and wear-resisting, pliability, breathes freely saturating Moist good the features such as.Technical requirements as above can not be reached for common material.Thermoplastic polyurethane (TPU) is a kind of new Organic polymer synthetic material, it is excellent due to properties, can replace rubber, soft polyvinyl chloride material PVC.For example It has an excellent physical property, such as wearability, and screen resilience is all better than conventional polyurethanes and PVC, and resistance to ag(e)ing is better than rubber, It can be described as substituting PVC and PU optimal material.
Therefore, be desirable in this area by the improvement for TPU materials obtain one kind can be adapted to automobile massage use Material.
The content of the invention
In view of the shortcomings of the prior art, it is special it is an object of the invention to provide a kind of TPU composites and preparation method thereof It is not to provide a kind of automobile massage TPU composites and preparation method thereof.
For up to this purpose, the present invention uses following technical scheme：
On the one hand, the present invention provides a kind of TPU composites, and the TPU composites are combined by TPU film with nylon cloth Obtain, the raw material of the TPU film includes following components：
Obtain TPU composites by the way that TPU film and nylon cloth are compound in the present invention, the material have high-flexibility with And good wearability, and possessing comfortable feel, penetrability is good, is suitable as automobile massage material.
Strengthen the wearability of composite in the present invention by using nanometer glass fiber, by the regulation and control to soft and hard segments, High molecular polarity is put forward, the association of hydrone and polar group is improved, so as to strengthen the breathable moisture permeability of composite, passes through heat Fitting strengthens the fastness that TPU film is combined with nylon cloth, and TPU film and the compound of nylon cloth are improved for further Pliability and the wearability tool of TPU composites have certain effect.
In the present invention, the consumption of the diisocyanate can be 40 parts by weight, 41 parts by weight, 42 parts by weight, 43 weights Measure part 44 parts by weight, 45 parts by weight, 46 parts by weight, 47 parts by weight, 48 parts by weight, 49 parts by weight, 50 parts by weight, 51 parts by weight, 52 parts by weight, 53 parts by weight, 54 parts by weight, 55 parts by weight, 56 parts by weight, 57 parts by weight, 58 parts by weight, 59 parts by weight and 60 weights Measure part.
In the present invention, the consumption of the polyalcohol can for 30 parts by weight, 31 parts by weight, 32 parts by weight, 33 parts by weight, 34 parts by weight, 35 parts by weight, 36 parts by weight, 37 parts by weight, 38 parts by weight, 39 parts by weight, 40 parts by weight, 41 parts by weight, 42 weights Measure part, 43 parts by weight, 44 parts by weight, 45 parts by weight, 46 parts by weight, 47 parts by weight, 48 parts by weight, 49 parts by weight and 50 weight Part.
In the present invention, the consumption of the nanometer glass fiber can be 1 parts by weight, 1.5 parts by weight, 2 parts by weight, 2.5 Parts by weight, 3 parts by weight, 3.5 parts by weight, 4 parts by weight, 4.5 parts by weight and 5 parts by weight.
In the present invention, the consumption of the chain extender can for 10 parts by weight, 11 parts by weight, 12 parts by weight, 13 parts by weight, 14 parts by weight, 15 parts by weight, 16 parts by weight, 17 parts by weight, 18 parts by weight, 19 parts by weight and 20 parts by weight.
In the present invention, the consumption of the catalyst can be 0.1 parts by weight, 0.2 parts by weight, 0.3 parts by weight, 0.4 weight Measure part, 0.5 parts by weight, 0.6 parts by weight, 0.7 parts by weight, 0.8 parts by weight, 0.9 parts by weight or 1.0 parts by weight.
Preferably, the raw material of the TPU film includes following components：
Preferably, the diisocyanate is Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1, the mixing of hexamethylene-diisocyanate Thing, the polyalcohol is the mixture of PPG and PEPA.
Two kinds of specific diisocyanate, both diisocyanate and two kinds of specific polyalcohols are selected in the present invention Cooperate, there is synergy in penetrability, wearability and the flexibility of enhancing polyurethane.
Preferably, the Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1, the mass ratio of hexamethylene-diisocyanate is (3-6):1, example Such as 3:1、3.3:1、3.5:1、3.8:1、4:1、4.2:1、4.5:1、4.8:1、5:1、5.3:1、5.5:1、5.8:1 or 6:1.This two Kind specific diisocyanate is used in conjunction with each other, and can preferably adjust the penetrability of thermoplastic polyurethane, wearability and soft Toughness.
Preferably, the mass ratio of the PPG and PEPA is 1:(4-7), such as 1:4、1:4.5、1:5、 1:5.5、1:6、1:6.5 or 1:7.
Preferably, the number-average molecular weight of the polyalcohol be 500-5000, such as 500,1000,1500,2000,3000, 4000 or 5000, preferably 1000-2000.
Preferably, the chain extender is in ethylene glycol, ethylenediamine, 1,3-PD, BDO or 1,5-PD Any one or at least two combination.
Preferably, the catalyst is any one in stannous octoate, two sad dibutyl tins or dibutyl tin dilaurate Kind or at least two combination.
Preferably, the nylon cloth be 20D nylon cloths, 30D nylon cloths, 40D nylon cloths, 50D nylon cloths, 70D nylon cloths, In 100D nylon cloths or 210D nylon cloths any one or at least two combination, preferably 70D nylon cloths and/or 100D nylon Cloth.
On the other hand, the invention provides the preparation method of TPU composites as described above, methods described includes following Step：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst add Enter into C storage tanks, under the stirring of 300-500r/min rotating speeds, in de- in 60-80 DEG C of vacuum under -0.3~-0.1kPa pressure Water；
(2) by the raw material pumping in step (1) into double screw extruder, while adding glass fibre, twin-screw is utilized Extruder reaction, granulation, the feeding section temperature of the double screw extruder is 110-120 DEG C, and mixing section temperature is 130-150 DEG C, extruding zone temperature is 170-200 DEG C, and head temperature is 150-180 DEG C；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2), by single screw extrusion machine, are 190-220 DEG C, mould according to extruder temperature Head temperature is cast into TPU membrane for 180-200 DEG C of condition, while the gluing nylon cloth that step (3) is obtained is unreeled, with curtain coating TPU membrane thermal-adhering, obtains described TPU composites.
Preferably, temperature during step (1) described vacuum dehydration be 60-80 DEG C, such as 60 DEG C, 63 DEG C, 65 DEG C, 68 DEG C, 70 DEG C, 72 DEG C, 75 DEG C, 78 DEG C or 80 DEG C.
Preferably, the speed of step (1) described stirring be 300-500r/min, such as 300r/min, 340r/min, 380r/min, 420r/min, 460r/min or 500r/min.
Preferably, pressure during step (1) described vacuum dehydration be -0.3~-0.1kPa, such as -0.3kPa, - 0.28kPa, -0.25kPa, -0.23kPa, -0.2kPa, -0.18kPa, -0.15kPa, -0.13kPa or -0.1kPa.
Preferably, the feeding section temperature of step (2) described double screw extruder is 110-120 DEG C, such as 112 DEG C, 115 DEG C, 118 DEG C or 120 DEG C, mixing section temperature be 130-150 DEG C, such as 132 DEG C, 135 DEG C, 138 DEG C, 140 DEG C, 143 DEG C, 145 DEG C Or 148 DEG C, extruding zone temperature is 170-200 DEG C, such as 170 DEG C, 175 DEG C, 180 DEG C, 185 DEG C, 190 DEG C, 195 DEG C or 200 DEG C, Head temperature is 150-180 DEG C, such as 150 DEG C, 155 DEG C, 160 DEG C, 165 DEG C, 170 DEG C, 175 DEG C or 180 DEG C.
As optimal technical scheme, the preparation method of TPU composites of the present invention specifically includes following steps：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst add Enter into C storage tanks, under the stirring of 300-500r/min rotating speeds, in de- in 60-80 DEG C of vacuum under -0.3~-0.1kPa pressure Water；
(2) by the raw material pumping in step (1) into double screw extruder, while nanometer glass fiber is added, using double Screw extruder reaction, granulation, the feeding section temperature of the double screw extruder is 110-120 DEG C, and mixing section temperature is 130- 150 DEG C, extruding zone temperature is 170-200 DEG C, and head temperature is 150-180 DEG C；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2), by single screw extrusion machine, are 190-220 DEG C, mould according to extruder temperature Head temperature is cast into TPU membrane for 180-200 DEG C of condition, while the gluing nylon cloth that step (3) is obtained is unreeled, with curtain coating TPU membrane thermal-adhering, obtains described TPU composites.
Relative to prior art, the invention has the advantages that：
TPU composites are obtained by the way that TPU film and nylon cloth are compound in the present invention, by using nanometer glass fiber Strengthen the wearability of composite, by the regulation and control to soft and hard segments, put forward high molecular polarity, improve hydrone and polar group Association, so as to strengthen the breathable moisture permeability of composite, the fastness that TPU film is combined with nylon cloth is strengthened by thermal-adhering, And TPU film and the compound pliability and wearability for further improving TPU composites of nylon cloth have certain Effect.The tensile strength of the TPU composites reaches 45-52MPa, and tearing strength reaches 80-100kgf/cm, and peel strength reaches 4.5-6.0N/mm, water vapor transmittance is 5000-6000g/m224h, and the ply adhesion situation of the TPU composites is good It is good, will not occur lamination, and comfortable feel, be suitable as automobile massage material.
Embodiment
Technical scheme is further illustrated below by embodiment.Those skilled in the art should be bright , the embodiment be only to aid in understand the present invention, be not construed as to the present invention concrete restriction.
Embodiment 1
In the present embodiment, TPU composites, the original of the TPU film are obtained by TPU film and 70D nylon cloths are compound Material includes following components：
Wherein diisocyanate is Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1, the mixture of hexamethylene-diisocyanate, Isosorbide-5-Nitrae-ring The mass ratio of hexane diisocyanate and hexamethylene diisocyanate is 3:1, the polyalcohol is that PPG and polyester are more The mass ratio of the mixture of first alcohol, PPG and PEPA is 1:5, the number-average molecular weight of the polyalcohol is 1000, chain extender is ethylenediamine, and catalyst is stannous octoate.
Preparation method is as follows：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst add Enter into C storage tanks, 400r/min rotating speeds stirring under, under -0.3kPa pressure in 70 DEG C of vacuum dehydrations；
(2) by the raw material pumping in step (1) into double screw extruder, while adding glass fibre, twin-screw is utilized Extruder reaction, granulation, the feeding section temperature of the double screw extruder is 110 DEG C, and mixing section temperature is 130 DEG C, extruding zone Temperature is 170 DEG C, and head temperature is 150 DEG C；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2), by single screw extrusion machine, are 190 DEG C, die head temperature according to extruder temperature The condition spent for 180 DEG C is cast into TPU membrane, while the gluing nylon cloth that step (3) is obtained is unreeled, the TPU membrane heat with curtain coating Laminating, obtains described TPU composites.
Embodiment 2
In the present embodiment, TPU composites, the original of the TPU film are obtained by TPU film and 70D nylon cloths are compound Material includes following components：
Wherein diisocyanate is Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1, the mixture of hexamethylene-diisocyanate, Isosorbide-5-Nitrae-ring The mass ratio of hexane diisocyanate and hexamethylene diisocyanate is 4:1, the polyalcohol is that PPG and polyester are more The mass ratio of the mixture of first alcohol, PPG and PEPA is 1:4, the number-average molecular weight of the polyalcohol is 1500, chain extender is ethylene glycol, and catalyst is two sad dibutyl tins.
Preparation method is as follows：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst add Enter into C storage tanks, 500r/min rotating speeds stirring under, under -0.1kPa pressure in 80 DEG C of vacuum dehydrations；
(2) by the raw material pumping in step (1) into double screw extruder, while adding glass fibre, twin-screw is utilized Extruder reaction, granulation, the feeding section temperature of the double screw extruder is 120 DEG C, and mixing section temperature is 150 DEG C, extruding zone Temperature is 180 DEG C, and head temperature is 160 DEG C；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2), by single screw extrusion machine, are 200 DEG C, die head temperature according to extruder temperature The condition spent for 185 DEG C is cast into TPU membrane, while the gluing nylon cloth that step (3) is obtained is unreeled, the TPU membrane heat with curtain coating Laminating, obtains described TPU composites..
Embodiment 3
In the present embodiment, TPU composites, the original of the TPU film are obtained by TPU film and 70D nylon cloths are compound Material includes following components：
Wherein diisocyanate is Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1, the mixture of hexamethylene-diisocyanate, Isosorbide-5-Nitrae-ring The mass ratio of hexane diisocyanate and hexamethylene diisocyanate is 5:1, the polyalcohol is that PPG and polyester are more The mass ratio of the mixture of first alcohol, PPG and PEPA is 1:7, the number-average molecular weight of the polyalcohol is 1750, chain extender is BDO, and catalyst is two sad dibutyl tins.
Preparation method is as follows：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst add Enter into C storage tanks, 300r/min rotating speeds stirring under, under -0.3kPa pressure in 60 DEG C of vacuum dehydrations；
(2) by the raw material pumping in step (1) into double screw extruder, while nanometer glass fiber is added, using double Screw extruder reaction, granulation, the feeding section temperature of the double screw extruder is 120 DEG C, and mixing section temperature is 130 DEG C, is squeezed It is 170 DEG C to go out section temperature, and head temperature is 160 DEG C；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2), by single screw extrusion machine, are 205 DEG C, die head temperature according to extruder temperature The condition spent for 190 DEG C is cast into TPU membrane, while the gluing nylon cloth that step (3) is obtained is unreeled, the TPU membrane heat with curtain coating Laminating, obtains described TPU composites.
Embodiment 4
In the present embodiment, TPU composites, the original of the TPU film are obtained by TPU film and 100D nylon cloths are compound Material includes following components：
Wherein diisocyanate is Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1, the mixture of hexamethylene-diisocyanate, Isosorbide-5-Nitrae-ring The mass ratio of hexane diisocyanate and hexamethylene diisocyanate is 6:1, the polyalcohol is that PPG and polyester are more The mass ratio of the mixture of first alcohol, PPG and PEPA is 1:5, the number-average molecular weight of the polyalcohol is 2000, chain extender is 1,3-PD, and catalyst is dibutyl tin dilaurate.
Preparation method is as follows：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst add Enter into C storage tanks, 500r/min rotating speeds stirring under, under -0.2kPa pressure in 75 DEG C of vacuum dehydrations；
(2) by the raw material pumping in step (1) into double screw extruder, while nanometer glass fiber is added, using double Screw extruder reaction, granulation, the feeding section temperature of the double screw extruder is 110 DEG C, and mixing section temperature is 150 DEG C, is squeezed It is 180 DEG C to go out section temperature, and head temperature is 150 DEG C；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2), by single screw extrusion machine, are 210 DEG C, die head temperature according to extruder temperature The condition spent for 195 DEG C is cast into TPU membrane, while the gluing nylon cloth that step (3) is obtained is unreeled, the TPU membrane heat with curtain coating Laminating, obtains described TPU composites.
Embodiment 5
In the present embodiment, TPU composites, the original of the TPU film are obtained by TPU film and 40D nylon cloths are compound Material includes following components：
Wherein diisocyanate is Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1, the mixture of hexamethylene-diisocyanate, Isosorbide-5-Nitrae-ring The mass ratio of hexane diisocyanate and hexamethylene diisocyanate is 5:1, the polyalcohol is that PPG and polyester are more The mass ratio of the mixture of first alcohol, PPG and PEPA is 1:4, the number-average molecular weight of the polyalcohol is 1300, chain extender is ethylenediamine, and catalyst is stannous octoate.
Preparation method is as follows：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst add Enter into C storage tanks, 500r/min rotating speeds stirring under, under -0.1kPa pressure in 80 DEG C of vacuum dehydrations；
(2) by the raw material pumping in step (1) into double screw extruder, while nanometer glass fiber is added, using double Screw extruder reaction, granulation, the feeding section temperature of the double screw extruder is 120 DEG C, and mixing section temperature is 130 DEG C, is squeezed It is 170 DEG C to go out section temperature, and head temperature is 160 DEG C；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2), by single screw extrusion machine, are 220 DEG C, die head temperature according to extruder temperature The condition spent for 200 DEG C is cast into TPU membrane, while the gluing nylon cloth that step (3) is obtained is unreeled, the TPU membrane heat with curtain coating Laminating, obtains described TPU composites.
Comparative example 1
The comparative example the difference is that only with embodiment 1, nano-glass is added without in the raw material of TPU film fine Dimension, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 2
The comparative example be the difference is that only with embodiment 1, and nanometer glass fiber is added in the raw material of TPU film Consumption is 0.5 parts by weight, and remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 3
The comparative example be the difference is that only with embodiment 1, and nanometer glass fiber is added in the raw material of TPU film Consumption is 6 parts by weight, and remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 4
The comparative example the difference is that only that diisocyanate is the single isocyanide of Isosorbide-5-Nitrae-hexamethylene two with embodiment 1 Acid esters, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 5
The comparative example the difference is that only that diisocyanate is single hexamethylene diisocyanate with embodiment 1, remaining Raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 6
The comparative example the difference is that only with embodiment 1, oneself two isocyanides of Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1,6- The mass ratio of acid esters is 2:1, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 7
The comparative example the difference is that only with embodiment 1, oneself two isocyanides of Isosorbide-5-Nitrae-cyclohexane diisocyanate and 1,6- The mass ratio of acid esters is 7:1, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 8
The comparative example the difference is that only that polyalcohol is that single polyethers is more in the raw material of TPU film with embodiment 1 First alcohol, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 9
The comparative example the difference is that only that polyalcohol is that single polyester is more in the raw material of TPU film with embodiment 1 First alcohol, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 10
The comparative example the difference is that only with embodiment 1, PPG and polyester polyols in the raw material of TPU film The mass ratio of alcohol is 1:3, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 11
The comparative example the difference is that only with embodiment 1, PPG and polyester polyols in the raw material of TPU film The mass ratio of alcohol is 1:9, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 12
The comparative example the difference is that only that the number-average molecular weight of the polyalcohol is 500, and remaining is former with embodiment 1 Material and raw material dosage and preparation method and condition are same as Example 1.
Comparative example 13
The comparative example the difference is that only that the number-average molecular weight of the polycarbonate polyol is with embodiment 1 3000, remaining raw material and raw material dosage and preparation method and condition are same as Example 1.
The TPU composites prepared to embodiment 1-5 and comparative example 1-13 carry out performance test, its test result As shown in table 1.
Table 1
The tensile strength for the TPU composites that the present invention is prepared reaches 45-52MPa as shown in Table 1, and tearing strength reaches 80-100kgf/cm, hardness is 60-65A, and water vapor transmittance is 5000-6000g/m224h, peel strength reaches 4.5-6.0N/ Mm, and the TPU composite comfortable feels, wearability are good, are suitable as automobile massage material.
When the raw material of the TPU film does not include nanometer glass fiber, or nanometer glass fiber addition not in 1-5 weights When in the range of amount part (comparative example 1-3), the mechanical property and breathable moisture permeability of the TPU composites prepared can be notable Decline, and certain influence can be also produced for the pliability of composite；Changed into individually when by the diisocyanate of the present invention Isosorbide-5-Nitrae-cyclohexane diisocyanate or 1, hexamethylene-diisocyanate (comparative example 4-5), or when the mass ratio of the two is excessive or When too small (comparative example 6-7), due to soft segment and the allotment of hard section ratio not good, tensile strength that can be to TPU composites and fracture Elongation and water vapor transmittance produce certain influence；Equally when polyalcohol is single PPG or PEPA (comparative example 8-9), or when the mass ratio of PPG and PEPA is too small or excessive (comparative example 10-11) or , also can be more or less when the number-average molecular weight of polycarbonate polyol is less than 1000 or more than 2000 (comparative example 12-13) Influence the pliability and water vapor transmittance of material.
Applicant states that the present invention illustrates a kind of automobile massage TPU composite woods of the present invention by above-described embodiment Material and preparation method thereof, but the invention is not limited in above-described embodiment, that is, do not mean that the present invention has to rely on above-mentioned implementation Example could be implemented.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, to each original of product of the present invention The equivalence replacement of material and the addition of auxiliary element, the selection of concrete mode etc., all fall within protection scope of the present invention and open model Within enclosing.

Claims (10)

1. a kind of TPU composites, it is characterised in that the TPU composites are obtained by TPU film and nylon cloth are compound, institute Stating the raw material of TPU film includes following components：
2. TPU composites according to claim 1, it is characterised in that the raw material of the TPU film is included with the following group Point：
3. TPU composites according to claim 1 or 2, it is characterised in that the diisocyanate is Isosorbide-5-Nitrae-hexamethylene Diisocyanate and 1, the mixture of hexamethylene-diisocyanate, the polyalcohol is the mixing of PPG and PEPA Thing.
4. the TPU composites according to any one of claim 1-3, it is characterised in that the Isosorbide-5-Nitrae-hexamethylene two is different The mass ratio of cyanate and hexamethylene diisocyanate is (3-6):1；
Preferably, the mass ratio of the PPG and PEPA is 1:(4-7).
5. the TPU composites according to any one of claim 1-4, it is characterised in that the number of the polyalcohol is divided equally Son amount is 500-5000, preferably 1000-2000.
6. the TPU composites according to any one of claim 1-5, it is characterised in that the chain extender be ethylene glycol, In ethylenediamine, 1,3- propane diols, 1,4- butanediols or 1,5- pentanediols any one or at least two combination；
Preferably, the catalyst be in stannous octoate, two sad dibutyl tins or dibutyl tin dilaurate any one or At least two combination；
Preferably, the nylon cloth is 20D nylon cloths, 30D nylon cloths, 40D nylon cloths, 50D nylon cloths, 70D nylon cloths, 100D In nylon cloth or 210D nylon cloths any one or at least two combination, preferably 70D nylon cloths and/or 100D nylon cloths.
7. the preparation method of the TPU composites according to any one of claim 1-6, it is characterised in that methods described Comprise the following steps：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst are added to In C storage tanks, under agitation, vacuum dehydration；
(2) utilize vavuum pump by each raw material pumping in step (1) into double screw extruder, while it is fine to add nano-glass Dimension, reaction granulation, obtains TPU particles；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2) are cast into TPU membrane by single screw extrusion machine, while step (3) is obtained Gluing nylon cloth is unreeled, the TPU membrane thermal-adhering with curtain coating, obtains described TPU composites.
8. preparation method according to claim 7, it is characterised in that temperature during step (1) described vacuum dehydration is 60- 80℃；
Preferably, the speed of step (1) described stirring is 300-500r/min；
Preferably, pressure during step (1) described vacuum dehydration is -0.3~-0.1kPa.
9. the preparation method according to claim 7 or 8, it is characterised in that the feeding of step (2) described double screw extruder Duan Wendu is 110-120 DEG C, and mixing section temperature is 130-150 DEG C, and extruding zone temperature is 170-200 DEG C, and head temperature is 150- 180℃；The extruder temperature of single screw extrusion machine described in step (4) is 190-220 DEG C, and die head temperature is 180-200 DEG C.
10. the preparation method according to any one of claim 7-9, it is characterised in that the described method comprises the following steps：
(1) diisocyanate is added in A storage tanks, polyalcohol is added in B storage tanks, chain extender and catalyst are added to In C storage tanks, 300-500r/min rotating speeds stirring under, under -0.3~-0.1kPa pressure in 60-80 DEG C of vacuum dehydration；
(2) by the raw material pumping in step (1) into double screw extruder, while adding glass fibre, twin-screw extrusion is utilized Machine reaction, granulation, the feeding section temperature of the double screw extruder is 110-120 DEG C, and mixing section temperature is 130-150 DEG C, is squeezed It is 170-200 DEG C to go out section temperature, and head temperature is 150-180 DEG C；
(3) coating machine glue coating on nylon cloth is utilized, is batched standby；
(4) the TPU particles for obtaining step (2), by single screw extrusion machine, are 190-220 DEG C, die head temperature according to extruder temperature Spend and be cast into TPU membrane for 180-200 DEG C of condition, while the gluing nylon cloth that step (3) is obtained is unreeled, the TPU with curtain coating Film thermal-adhering, obtains described TPU composites.
CN201710232508.8A 2017-04-11 2017-04-11 A kind of automobile massage TPU composites and preparation method thereof Pending CN106939071A (en)

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