CN109836807A - A kind of flexible polyurethane foam and its processing method - Google Patents
A kind of flexible polyurethane foam and its processing method Download PDFInfo
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- CN109836807A CN109836807A CN201910069563.9A CN201910069563A CN109836807A CN 109836807 A CN109836807 A CN 109836807A CN 201910069563 A CN201910069563 A CN 201910069563A CN 109836807 A CN109836807 A CN 109836807A
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Abstract
The invention discloses a kind of flexible polyurethane foams, belong to the technical field of polyurethane product, its key points of the technical solution are that, by weight, the raw material for preparing of flexible polyurethane foam includes following components: 100 parts of polyether polyol, 30-50 parts of toluene di-isocyanate(TDI), 1-5 parts of water, 0.1-0.5 parts of triethylene diamine, 0.1-0.5 parts of stannous octoate, 0.3-1.5 parts of silicone oil, 23-27 parts of fiber reinforced composition, wherein, by weight, fiber reinforced composition includes 2-5 parts of carbon fiber, 5-8 parts of spandex fibre, 14-17 parts of bamboo fiber, 2-3.4 parts of coupling agent；Production method includes: S1, in parts by weight, each raw material component of fiber reinforced composition is mixed 20-30min under 500-600r/min, obtains fiber reinforced composition；Flexible polyurethane foam is made through foamable reaction after mixing fiber reinforced composition with remaining ingredient in parts by weight in S2, and the temperature before mixing is 25-30 DEG C.
Description
Technical field
The present invention relates to the technical field of polyurethane product, in particular to a kind of flexible polyurethane foam and its processing
Method.
Background technique
Flexible polyurethane foam abbreviation soft polyurethane foam or the soft bubble of PU are a kind of with certain elasticity and flexibility
Polyurethane foam plastics and the maximum a kind of polyurethane products of dosage, inside is presented porous honeycomb structure, has good
Flexibility, elasticity, water imbibition, water resistance etc. are widely used in Sofa cushion, sofa backrest, sofa handrail, vehicle seat, mattress
Etc. industries.
Existing to can refer to the Chinese patent application that application publication number is CN104130371B, it discloses a kind of low smells
The bus seat of height rebound according to mass ratio is 100:55- by combination material and modified diphenylmethane diisocyanate with sponge
60 ratio is made, wherein combination material is composed of the following parts by weight: 50-80 parts of polyether polyol, graft polyether 20-
50 parts, 0.2-0.3 parts of amines catalyst, gel catalyst 0.2-0.5 parts of early period, gel catalyst 0.5-0.7 parts of later period, foaming
3-4 parts of agent, 1 part of crosslinking agent, 0.5-0.7 parts of stabilizer.
TDI (toluene di-isocyanate(TDI)) system PU is soft, and bubble refers to using toluene di-isocyanate(TDI) as the soft bubble foaming raw material of PU
The soft bubble of PU obtained, the apparent density of the soft bubble of TDI system PU is relatively low, and foam volume is big, comfortable feel, however, it is universal
Have the shortcomings that resilience performance is not good enough, cause its support degree insufficient, usage comfort is not good enough, limit its Sofa cushion,
The application of the industries such as sofa backrest, sofa handrail, vehicle seat, mattress also limits the value of itself.
Summary of the invention
In view of the shortcomings of the prior art, the purpose of the present invention one is: providing a kind of former for foaming with toluene di-isocyanate(TDI)
The flexible polyurethane foam plastic product of material has excellent resilience performance, support performance and usage comfort.
The first purpose of this invention has the technical scheme that
A kind of flexible polyurethane foam includes by weight following components: 100 parts of polyether polyol, toluene two are different
30-50 parts of cyanate, 1-5 parts of water, 0.1-0.5 parts of triethylene diamine, 0.1-0.5 parts of stannous octoate, 0.3-1.5 parts of silicone oil, fibre
Composition 23-27 parts of dimension enhancing, wherein by weight, fiber reinforced composition includes 2-5 parts of carbon fiber, spandex fibre 5-8
Part, 14-17 parts of bamboo fiber, 2-3.4 parts of coupling agent.
By using above scheme, the main body of foamable reaction is the pure and mild toluene di-isocyanate(TDI) of polyether polyols, and water is as hair
Infusion, triethylene diamine and stannous octoate are as catalyst, and silicone oil is as stabilizer.Experiment discovery, above-mentioned each raw material component
There is larger impact with resilience performance, support performance and the usage comfort for comparing flexible polyurethane foam obtained, when
The burden control of each raw material component in above range, the flexible polyurethane foam of acquisition have preferable resilience performance,
Support performance and usage comfort.
Carbon fiber has high-intensitive and high-modulus can be effective after being distributed in flexible polyurethane foam matrix
The support performance of flexible polyurethane foam is improved, moreover, carbon fiber also has preferable flexibility and fatigue performance,
Be conducive to the elasticity, the resilience that further improve flexible polyurethane foam, promote the resistance to tired of flexible polyurethane foam
Labor and service life.
Spandex fibre is also known as polyurethane fibre, has deep drawing quality (500-700%), low elastic modulus (200%
Elongation, 0.04-0.12g/ denier) and elastic recovery rate (200% elongation, the response rate of 95-99%), by the spandex of suitable proportion
Preparing in raw material for the soft bubble of PU is added, spandex is distributed with inside the soft bubble of the PU of acquisition, be able to ascend the elasticity of the soft bubble of PU and returns
Elasticity.Moreover, spandex fibre is a kind of polyurethane fiber, there is preferably knot with the soft bubble matrix of PU for being similarly polyurethane product
Performance is closed, connection effect of fiber bubble matrix soft to PU is this further enhanced.
Bamboo fiber has preferable flexibility, stronger intensity, excellent anti-ultraviolet function, also resists with excellent
Bacterium, deodorization, bactericidal effect.The addition of bamboo fiber is other than it can be improved the comfort level of the soft bubble of PU, resistance to compression is slight, moreover it is possible to mention
The anti-ultraviolet function of the high soft bubble of PU mitigates the metachromatism of the soft bubble of PU in use.In addition, the sterilization of bamboo fiber removes
Smelly function can also effectively improve the sanitation performance of the soft bubble of PU, for Sofa cushion etc., be conducive to the cleannes for keeping cushion, promote
Human health.
Carbon fiber, spandex fibre and bamboo fiber, three kinds of fibers are added with suitable proportion, can be utilized each own
The property of threadiness works in coordination and plays the role of being coupled the soft bubble matrix of PU, to improve the globality of the soft bubble of PU, and thus
Promote the resilience performance and support performance of the soft bubble of PU.The addition of coupling agent can be modified place to the surface of above-mentioned three kinds of fibers
Reason further promotes resilience performance and the support of the soft bubble of PU to further improve the inner Join and globality of the soft bubble of PU
Performance.
The present invention is further arranged to: the fiber reinforced composition further includes 2-3.4 parts of antioxidant.
By using above scheme, the addition of antioxidant can not only improve flexible polyurethane foam matrix
Antioxygenic property, moreover it is possible to which the antioxygenic property for improving above-mentioned fiber mitigates the metachromatism of flexible polyurethane foam, moreover it is possible to
Flexible polyurethane foam is enabled to keep excellent mechanical property for a long time.
The present invention is further arranged to: by weight, fiber reinforced composition includes 3 parts of carbon fiber, spandex fibre 6
Part, 16 parts of bamboo fiber, 2.5 parts of coupling agent, 2.3 parts of antioxidant.
The present invention is further arranged to: the specification of the above-mentioned fiber is 100-150D, and length is 4-6mm.
The present invention is further arranged to: the coupling agent selects silane coupling agent.
The present invention is further arranged to: the antioxidant selects ultraviolet absorbent UV-531.
The purpose of the present invention two is: providing a kind of processing method of above-mentioned flexible polyurethane foam, feature exists
In including following preparation step:
The each raw material component of fiber reinforced composition is mixed 20-30min under 500-600r/min, obtained by S1 in parts by weight
Obtain fiber reinforced composition；
Flexibel polyurethane bubble is made through foamable reaction after mixing fiber reinforced composition with remaining ingredient in parts by weight in S2
Foam plastics, the temperature before mixing are 25-30 DEG C.
By using above scheme, it is modified that surface is first carried out to above-mentioned fiber using coupling agent, then mix with remaining ingredient,
The binding force between above-mentioned fiber and flexible polyurethane foam matrix can be further increased, flexible polyurethane foams are improved
The globality of plastics, to improve the support performance and resilience performance of flexible polyurethane foam.
In conclusion the invention has the following advantages:
1, the proportion of each raw material component is scientific and reasonable, and the PU of acquisition is soft, and bubble has preferable resilience performance, support performance and use
Comfort level；
2, three kinds of carbon fiber, spandex fibre and bamboo fiber fibers are added with suitable proportion, can utilize each own fibre
The property for tieing up shape works in coordination and plays the role of being coupled the soft bubble matrix of PU, to improve the globality of the soft bubble of PU, and thus into
The resilience performance and support performance of the one step promotion soft bubble of PU.
Specific embodiment
Invention is further described in detail below.
Embodiment 1
A kind of flexible polyurethane foam:
It by weight, include following components: 100 parts of polyether polyol, 30 parts of toluene di-isocyanate(TDI), 1 part of water, triethylene
0.1 part of diamines, 0.1 part of stannous octoate, 0.3 part of silicone oil, 23 parts of fiber reinforced composition, wherein by weight, fiber reinforcement
Composition includes 2 parts of carbon fiber, 5 parts of spandex fibre, 14 parts of bamboo fiber, 2 parts of coupling agent；Coupling agent selects silane coupling agent,
Antioxidant selects ultraviolet absorbent UV-531, and the specification of three kinds of fibers is 100D, and length is 4mm；Preparation step packet
It includes:
The each raw material component of fiber reinforced composition is mixed under 500r/min 20min, obtains fiber by S1 in parts by weight
Enhance composition；
Flexibel polyurethane bubble is made through foamable reaction after mixing fiber reinforced composition with remaining ingredient in parts by weight in S2
Foam plastics, the temperature before mixing are 25 DEG C.
Embodiment 2
A kind of flexible polyurethane foam:
By weight, preparing raw material includes following components: 100 parts of polyether polyol, 40 parts of toluene di-isocyanate(TDI), water 3
Part, 0.3 part of triethylene diamine, 0.3 part of stannous octoate, 0.7 part of silicone oil, 25 parts of fiber reinforced composition, wherein by weight
Meter, fiber reinforced composition includes 3 parts of carbon fiber, 6 parts of spandex fibre, 16 parts of bamboo fiber, 2.5 parts of coupling agent, antioxidant
2.3 part；Coupling agent selects silane coupling agent, and antioxidant selects ultraviolet absorbent UV-531, and the specification of three kinds of fibers is
120D, length are 5mm；
Preparation step includes:
The each raw material component of fiber reinforced composition is mixed under 550r/min 25min, obtains fiber by S1 in parts by weight
Enhance composition；
Flexibel polyurethane bubble is made through foamable reaction after mixing fiber reinforced composition with remaining ingredient in parts by weight in S2
Foam plastics, the temperature before mixing are 27 DEG C.
Embodiment 3
A kind of flexible polyurethane foam:
By weight, preparing raw material includes following components: 100 parts of polyether polyol, 50 parts of toluene di-isocyanate(TDI), water 5
Part, 0.5 part of triethylene diamine, 0.5 part of stannous octoate, 1.5 parts of silicone oil, 27 parts of fiber reinforced composition, wherein by weight
Meter, fiber reinforced composition includes 5 parts of carbon fiber, 8 parts of spandex fibre, 17 parts of bamboo fiber, 3.4 parts of coupling agent, antioxidant
3.4 part；Coupling agent selects silane coupling agent, and antioxidant selects ultraviolet absorbent UV-531, and the specification of three kinds of fibers is
150D, length are 6mm；
Preparation step includes:
The each raw material component of fiber reinforced composition is mixed under 600r/min 30min, obtains fiber by S1 in parts by weight
Enhance composition；
Flexibel polyurethane bubble is made through foamable reaction after mixing fiber reinforced composition with remaining ingredient in parts by weight in S2
Foam plastics, the temperature before mixing are 30 DEG C.
Embodiment 4
A kind of flexible polyurethane foam, the difference from example 2 is that: raw material is prepared not comprising fiber reinforced composition.
Embodiment 5
A kind of flexible polyurethane foam, the difference from example 2 is that: do not include carbon fiber in fiber reinforced composition.
Embodiment 6
A kind of flexible polyurethane foam, the difference from example 2 is that: it is fine not include spandex in fiber reinforced composition
Dimension.
Embodiment 7
A kind of flexible polyurethane foam, the difference from example 2 is that: do not include bamboo fibril in fiber reinforced composition
Dimension.
Embodiment 8
A kind of flexible polyurethane foam, the difference from example 2 is that: directly all raw material components are mixed in preparation step
It closes, flexible polyurethane foam is made in foamed react.
The flexible polyurethane foam that performance detection prepares embodiment 1-8, i.e. flexible polyurethane foam carry out
Performance detection, detection project include apparent density, embody comfort collapse performance, resilience performance and stretch tear resistance,
Testing result is as shown in table 1.
The performance test results of 1 flexible polyurethane foam of table
According to table 1, every detection data of the flexible polyurethane foam of embodiment 1-3 preparation meets high-class product standard,
Illustrate that proportion of the invention is scientific and reasonable, can effectively promote the apparent density of flexible polyurethane foam, support performance, return
It is elastic and to stretch tear resistance.
It can be seen that work as to prepare in conjunction with comparative example 2,4-7 and lack fiber reinforced composition or reduction fiber in raw material
Enhance a certain fiber in composition, every detection data of the flexible polyurethane foam of acquisition is declined, tested
The improvement effect of addition to flexible polyurethane foam performance of multiple fiber proposed by the present invention and coupling agent is demonstrate,proved.
Comparative example 2,8 is as can be seen that in advance using coupling agent to three kinds of carbon fiber, spandex fibre and bamboo fiber fibres
Dimension is modified, and is conducive to promote the support performance of the soft bubble of PU, resilience performance and is stretched tear resistance.
Above-mentioned specific embodiment is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in scope of the presently claimed invention.
Claims (7)
1. a kind of flexible polyurethane foam, it is characterised in that: include following components by weight: polyether polyol
100 parts, 30-50 parts of toluene di-isocyanate(TDI), 1-5 parts of water, 0.1-0.5 parts of triethylene diamine, 0.1-0.5 parts of stannous octoate, silicon
It is 0.3-1.5 parts oily, 23-27 parts of fiber reinforced composition, wherein by weight, fiber reinforced composition includes carbon fiber 2-5
Part, 5-8 parts of spandex fibre, 14-17 parts of bamboo fiber, 2-3.4 parts of coupling agent.
2. a kind of flexible polyurethane foam according to claim 1, it is characterised in that: the fiber reinforced composition
It further include 2-3.4 parts of antioxidant.
3. a kind of flexible polyurethane foam according to claim 2, it is characterised in that: by weight, fiber increases
Strong composition includes 3 parts of carbon fiber, 6 parts of spandex fibre, 16 parts of bamboo fiber, 2.5 parts of coupling agent, 2.3 parts of antioxidant.
4. a kind of flexible polyurethane foam according to claim 1 to 3, it is characterised in that: the above-mentioned fiber
Specification be 100-150D, length is 4-6mm.
5. a kind of flexible polyurethane foam according to claim 1 to 3, it is characterised in that: the coupling agent choosing
Use silane coupling agent.
6. a kind of flexible polyurethane foam according to claim 1 to 3, it is characterised in that: the antioxidant
Select ultraviolet absorbent UV-531.
7. a kind of processing method of any flexible polyurethane foam of claim 1-6, which is characterized in that include
Following preparation step:
The each raw material component of fiber reinforced composition is mixed 20-30min under 500-600r/min, obtained by S1 in parts by weight
Obtain fiber reinforced composition；
Flexibel polyurethane bubble is made through foamable reaction after mixing fiber reinforced composition with remaining ingredient in parts by weight in S2
Foam plastics, the temperature before mixing are 25-30 DEG C.
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| CN201910069563.9A CN109836807A (en) | 2019-01-24 | 2019-01-24 | A kind of flexible polyurethane foam and its processing method |
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| CN201910069563.9A CN109836807A (en) | 2019-01-24 | 2019-01-24 | A kind of flexible polyurethane foam and its processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549638A (en) * | 2019-09-06 | 2019-12-10 | 杭州友凯船艇有限公司 | Technical scheme for preventing composite material of fiber reinforced plastic base material from brittle failure |
| CN111434720A (en) * | 2019-01-12 | 2020-07-21 | 天津市海神聚氨酯制品有限公司 | TDI system soft polyurethane foam plastic product and manufacturing process and production line thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145487A (en) * | 1976-02-19 | 1979-03-20 | Hoechst Aktiengesellschaft | Polyurethane foams containing reactive fibers and process for their manufacture |
| CN1324893A (en) * | 2000-05-19 | 2001-12-05 | 赵根普 | Foamed polyurethane material containing natural fiber and its making process |
| CN101134842A (en) * | 2006-08-31 | 2008-03-05 | 拜尔材料科学有限公司 | Low density rigid reinforced polyurethanes and a process for their production |
| CN103289056A (en) * | 2013-07-07 | 2013-09-11 | 华东理工大学 | Method for producing high-hydroscopicity soft polyurethane foam through bamboo fiber polyhydric alcohol |
| CN103819894A (en) * | 2014-02-07 | 2014-05-28 | 陈麒 | Memory foam material containing natural fiber and application of memory foam material |
| CN106589282A (en) * | 2016-11-11 | 2017-04-26 | 江苏大学 | Preparation method and applications of Mg/Al/C fiber-polyurethane foamed material |
| CN111434720A (en) * | 2019-01-12 | 2020-07-21 | 天津市海神聚氨酯制品有限公司 | TDI system soft polyurethane foam plastic product and manufacturing process and production line thereof |
-
2019
- 2019-01-24 CN CN201910069563.9A patent/CN109836807A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145487A (en) * | 1976-02-19 | 1979-03-20 | Hoechst Aktiengesellschaft | Polyurethane foams containing reactive fibers and process for their manufacture |
| CN1324893A (en) * | 2000-05-19 | 2001-12-05 | 赵根普 | Foamed polyurethane material containing natural fiber and its making process |
| CN101134842A (en) * | 2006-08-31 | 2008-03-05 | 拜尔材料科学有限公司 | Low density rigid reinforced polyurethanes and a process for their production |
| CN103289056A (en) * | 2013-07-07 | 2013-09-11 | 华东理工大学 | Method for producing high-hydroscopicity soft polyurethane foam through bamboo fiber polyhydric alcohol |
| CN103819894A (en) * | 2014-02-07 | 2014-05-28 | 陈麒 | Memory foam material containing natural fiber and application of memory foam material |
| CN106589282A (en) * | 2016-11-11 | 2017-04-26 | 江苏大学 | Preparation method and applications of Mg/Al/C fiber-polyurethane foamed material |
| CN111434720A (en) * | 2019-01-12 | 2020-07-21 | 天津市海神聚氨酯制品有限公司 | TDI system soft polyurethane foam plastic product and manufacturing process and production line thereof |
Non-Patent Citations (1)
| Title |
|---|
| 黄玉媛，等: "《精细化工配方常用原料手册》", 31 March 1998, 广东科技出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111434720A (en) * | 2019-01-12 | 2020-07-21 | 天津市海神聚氨酯制品有限公司 | TDI system soft polyurethane foam plastic product and manufacturing process and production line thereof |
| CN110549638A (en) * | 2019-09-06 | 2019-12-10 | 杭州友凯船艇有限公司 | Technical scheme for preventing composite material of fiber reinforced plastic base material from brittle failure |
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