CN108976375A - A kind of front-wheel Ji daughter board environmental protection flame retardant PU foamed material and preparation method thereof - Google Patents
A kind of front-wheel Ji daughter board environmental protection flame retardant PU foamed material and preparation method thereof Download PDFInfo
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- CN108976375A CN108976375A CN201810693915.3A CN201810693915A CN108976375A CN 108976375 A CN108976375 A CN 108976375A CN 201810693915 A CN201810693915 A CN 201810693915A CN 108976375 A CN108976375 A CN 108976375A
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- Prior art keywords
- foamed material
- wheel
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- daughter board
- environmental protection
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a kind of front-wheel Ji daughter board environmental protection flame retardant PU foamed materials and preparation method thereof, it is made of with material is combined by proportion by weight isocyanates, and isocyanates: combination material=1:1.8, combination material is as unit of parts by weight, including following raw material: 403:25-30 parts of polyethers；635:30-40 parts of polyethers；8804:2.5-3 parts of silicone oil；Combination catalyst: 2.2-2.9 parts；Water: 3.5-4.6 parts；TCPP:38-42 parts of fire retardant.The present invention is by raw material using reasonable proportion, foamed material anti-flammability and stability obtained are good, and not only fire savety is high using the front-wheel Ji daughter board of foamed material production, and long service life, the foamed material and front-wheel Ji daughter board that the present invention is prepared using the environmental protection material of rational proportion, harmful substance will not be discharged, avoids causing damages to environment and human body.
Description
Technical field
The present invention relates to vehicle front Ji daughter board composite material and preparation method, specifically a kind of front-wheel Ji
Plate environmental protection flame retardant PU foamed material and preparation method thereof.
Background technique
The main means of transport that automobile has become people's work, life is not replaced, social owning amount are continuously increased, respectively
Kind vehicle emerges one after another.
The wheel fender of automobile is the vehicle-body outer panel for covering wheel, can while the car is driving, prevent by
Sandstone, mud that wheel is rolled etc. splash the bottom in compartment.Traditional wheel fender is all made of foamed material and is made, existing
Foamed material causes its anti-flammability and intensity to realize its lightweight in order to reduce the total quality of automobile, even
Stability reduces, and reduces the fire savety of automobile on the whole, and the raw material environmental-protecting performance for making its foamed material is low, long
Time cause great harm environment and human body using meeting.
Summary of the invention
The present invention provides that a kind of stability is good, flame retardant property is high and environmentally friendly front-wheel Ji daughter board environmental protection flame retardant PU foaming material
Material and preparation method thereof.
The present invention solves above-mentioned technical problem and adopts the technical scheme that: a kind of front-wheel Ji daughter board environmental protection flame retardant PU foaming
Material is made of with material is combined by proportion by weight isocyanates, and the isocyanates: combination material=1:1.8, wherein
The combination material is as unit of parts by weight, including following raw material:
Further, the combination catalyst includes HP300 catalyst and HP224 catalyst, wherein
According to proportion by weight, the HP300 catalyst is 1.2-1.4 parts, and the HP224 catalyst is 1-1.5 parts.
Further, the isocyanates is MDI200.
The present invention also provides a kind of front-wheel Ji daughter board preparation methods of environmental protection flame retardant PU foamed material, including following system
Standby step:
(1) combination material raw material weighs: weighing polyethers 403, polyethers 635, silicone oil 8804, combination catalysis according to quality proportioning
Agent, water and fire retardant TCPP；
(2) combination material preparation: the raw material of combination material being sequentially added and carries out heating stirring in reaction kettle, and combination material is made；
(3) prepared by foamed material: weigh isocyanates, make its with combine the quality proportioning 1:1.8 expected, and will be described different
Cyanate is added in reaction kettle, carries out heating stirring, and foamed material is made；
(4) foaming operation: stirring is stopped to the foamed material stirred evenly, foams, obtains foamed material.
Further, heating temperature is 150-180 DEG C, mixing time 1-2h in the step (2), and mixing speed is
300-320r/min。
Further, heating temperature is 100-120 DEG C, mixing time 1.5-2.5h in step (3), and mixing speed is
240-300r/min。
Further, blowing temperature is 50-70 DEG C in step (4), foamed time 0.5-0.7h.
Using above-mentioned material and method, the present invention can be obtained for front-wheel Ji daughter board environmentally friendly high flame retardant foamed material,
Rationally due to inventive formulation collocation, preparation method is proper, so that the foamed material flame retardant property of preparation is high, stability is good,
The service life for also extending automobile on the basis of the fire savety of automobile is increased, and utilizes foamed material production
Front-wheel Ji daughter board light weight can mitigate the overall weight of vehicle to a certain extent, meet the weight demands of vehicle.In addition, this
The raw material that invention uses is environment-friendly materials, and will not according to the foamed material and front-wheel Ji daughter board of its reasonable collocation system
Harmful substance is generated, avoids causing damages to environment and human body.
Due to reasonably joined polyethers 403 in formula, the stability of foamed material can be further increased.
Due to joined silicone oil 8804 in the composition in the present invention and by HP300 catalyst and HP224 catalyst group
At combination catalyst, the reaction speed and the extent of reaction of foamed material can be improved, improve the producing efficiency of foamed material.
Specific embodiment
In order that the present invention can be more clearly and readily understood, below according to specific embodiment, before of the invention
Wheel Ji daughter board environmental protection flame retardant PU foamed material and preparation method thereof is described in further detail.
Embodiment 1:
A kind of preparation method of front-wheel Ji daughter board environmental protection flame retardant PU foamed material, including following preparation step:
(1) combination material raw material weighs: weighing 403,30 parts of 25 parts of polyethers, 635,2.5 parts of polyethers silicone oil according to quality proportioning
8804,1.2 parts of HP300 catalyst, 1 part of HP224 catalyst, 3.5 parts of water and 38 parts of fire retardant TCPP；
(2) combination material preparation: the raw material of combination material being sequentially added and carries out heating stirring in reaction kettle, and combination material is made；
Wherein, heating temperature is 150 DEG C, mixing time 1h, mixing speed 300r/min.
(3) prepared by foamed material: weigh isocyanates, make its with combine the quality proportioning 1:1.8 expected, and by isocyanic acid
Ester is added in reaction kettle, carries out heating stirring, and foamed material is made；Wherein, heating temperature is 100 DEG C, mixing time 1.5h,
Mixing speed is 240r/min.
(4) foaming operation: stirring is stopped to the foamed material stirred evenly, foams, obtains foamed material；Wherein,
Blowing temperature is 50 DEG C, foamed time 0.5h.
Embodiment 2:
A kind of preparation method of front-wheel Ji daughter board environmental protection flame retardant PU foamed material, including following preparation step:
(1) combination material raw material weighs: weighing 403,40 parts of 30 parts of polyethers, 635,3 parts of polyethers silicone oil according to quality proportioning
8804,1.4 parts of HP300 catalyst, 1.5 parts of HP224 catalyst, 4.6 parts of water and 42 parts of fire retardant TCPP；
(2) combination material preparation: the raw material of combination material being sequentially added and carries out heating stirring in reaction kettle, and combination material is made；
Wherein, heating temperature is 180 DEG C, mixing time 2h, mixing speed 320r/min.
(3) prepared by foamed material: weigh isocyanates, make its with combine the quality proportioning 1:1.8 expected, and by isocyanic acid
Ester is added in reaction kettle, carries out heating stirring, and foamed material is made；Wherein, heating temperature is 120 DEG C, mixing time 2.5h,
Mixing speed is 300r/min.
(4) foaming operation: stirring is stopped to the foamed material stirred evenly, foams, obtains foamed material；Wherein,
Blowing temperature is 70 DEG C, foamed time 0.7h.
Embodiment 3:
(1) combination material raw material weighs: weighing 403,35 parts of 27.5 parts of polyethers, 635,2.75 parts of polyethers silicon according to quality proportioning
Oily 8804,1.3 parts of HP300 catalyst, 1.25 parts of HP224 catalyst, 4.05 parts of water and 40 parts of fire retardant TCPP；
(2) combination material preparation: the raw material of combination material being sequentially added and carries out heating stirring in reaction kettle, and combination material is made；
Wherein, heating temperature is 165 DEG C, mixing time 1.5h, mixing speed 310r/min.
(3) prepared by foamed material: weigh isocyanates, make its with combine the quality proportioning 1:1.8 expected, and by isocyanic acid
Ester is added in reaction kettle, carries out heating stirring, and foamed material is made；Wherein, heating temperature is 110 DEG C, and mixing time 2h is stirred
Mixing speed is 270r/min.
(4) foaming operation: stirring is stopped to the foamed material stirred evenly, foams, obtains foamed material；Wherein,
Blowing temperature is 60 DEG C, foamed time 0.6h.
Embodiment 4:
(1) combination material raw material weighs: weighing 403,36 parts of 28 parts of polyethers, 635,2.8 parts of polyethers silicone oil according to quality proportioning
8804,1.32 parts of HP300 catalyst, 1.3 parts of HP224 catalyst, 4.2 parts of water and 40.5 parts of fire retardant TCPP；
(2) combination material preparation: the raw material of combination material being sequentially added and carries out heating stirring in reaction kettle, and combination material is made；
Wherein, heating temperature is 168 DEG C, mixing time 1.7h, mixing speed 312r/min.
(3) prepared by foamed material: weigh isocyanates, make its with combine the quality proportioning 1:1.8 expected, and by isocyanic acid
Ester is added in reaction kettle, carries out heating stirring, and foamed material is made；Wherein, heating temperature is 112 DEG C, mixing time 2.1h,
Mixing speed is 275r/min.
(4) foaming operation: stirring is stopped to the foamed material stirred evenly, foams, obtains foamed material；Wherein,
Blowing temperature is 62 DEG C, foamed time 0.62h.
The MDI200 that isocyanates in aforementioned four embodiment uses.
The foamed material that 1-4 embodiment is walked carries out test performance, and flame retardant rating is tested using UL94 as standard, thermal coefficient
Using ASTM-D5470 as standard, tensile strength is using ASTM D638 as standard, and oxygen index (OI) is with the progress of GB/T2406.2-2009 standard
Test.Its test result is as shown in table 1.
The performance test table of 1 foamed material of table
| Flame retardant rating | Thermal coefficient (W/ (m.K)) | Tensile strength (MPa) | Oxygen index (OI) (%) | |
| Embodiment 1 | V1 | 0.021 | 15.2 | 26.2 |
| Embodiment 2 | V2 | 0.025 | 14.8 | 27.1 |
| Embodiment 3 | V1 | 0.023 | 14.9 | 26.5 |
| Embodiment 4 | V1 | 0.020 | 15.3 | 27.4 |
In addition, being tested according to the method recorded in GB8410-2006 standard, test result includes following five kinds of situations:
(1) if sample is exposed to 15s in flame, extinguishing fire source is still unburned or sample can then, but flame reaches
Extinguish before to the first measurement graticule, no burning extent can be counted, then be believed to satisfy burning velocity requirement, be as a result denoted as A-
0mm/min；
(2) if since testing timing, flame self-extinguish in 60s, and burning extent is not more than 50mm, is also expired
Sufficient burning velocity requirement, is as a result denoted as B；
It (3) is self-extinguishment sample, and be unsatisfactory for if flame extinguishes between the two measuring markings since testing timing
(2) item requirement then carries out the calculating of burning velocity according to V=60 × (L/T), is as a result denoted as C- burning speed measured value mm/
min；
(4) if since testing timing, flame combustion to the second graticule, or terminate the case where testing in the presence of active,
The calculating that burning velocity is then carried out according to V=60 × (L/T), is as a result denoted as D- burning speed measured value mm/min；
(5) it has burnt in flame combustion 15s if there is sample and has reached the first graticule, then it is assumed that sample cannot expire
The requirement of sufficient burning velocity, is as a result denoted as E.
According to above-mentioned GB8410-2006 standard, embodiment 1,2,3 and 4 obtained foamed materials are tested, tested
The results are shown in Table 1:
Table 2: the flame retardant property table of foamed material
| Test case | Test result | |
| Embodiment 1 | Flame self-extinguish in 60s, and burning extent is 35mm | B |
| Embodiment 2 | Extinguish fire source, sample burning in 15s, and extinguishes before to the first measurement graticule | A-0mm/min |
| Embodiment 3 | Flame self-extinguish in 60s, and burning extent is 41mm | B |
| Embodiment 4 | Flame self-extinguish in 60s, and burning extent is 47mm | B |
Documented raw material, matching method and preparation method are made according to the present invention it can be seen from Tables 1 and 2
Foamed material out, good flame retardation effect, tensile strength is excellent, and comprehensive performance is superior, can significantly improve front-wheel Ji daughter board and vehicle
The fire savety of entirety.
Above specific embodiment, pair present invention solves the technical problem that, technical scheme and beneficial effects have carried out into one
Step is described in detail, it should be understood that be not intended to restrict the invention the above is only specific embodiments of the present invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (7)
1. a kind of front-wheel Ji daughter board environmental protection flame retardant PU foamed material, it is characterised in that: by isocyanates with combine material by quality
Part proportion composition, and the isocyanates: combination material=1:1.8, wherein
The combination material is as unit of parts by weight, including following raw material:
2. front-wheel Ji according to claim 1 daughter board environmental protection flame retardant PU foamed material, it is characterised in that: the combination is urged
Agent includes HP300 catalyst and HP224 catalyst, wherein
According to proportion by weight, the HP300 catalyst is 1.2-1.4 parts, and the HP224 catalyst is 1-1.5 parts.
3. front-wheel Ji according to claim 1 daughter board environmental protection flame retardant PU foamed material, it is characterised in that: the isocyanic acid
Ester is MDI200.
4. a kind of front-wheel Ji daughter board preparation method of environmental protection flame retardant PU foamed material, it is characterised in that: walked including following preparation
It is rapid:
(1) combination material raw material weighs: weighing polyethers 403, polyethers 635, silicone oil 8804, combination catalyst, water according to quality proportioning
With fire retardant TCPP；
(2) combination material preparation: the raw material of combination material being sequentially added and carries out heating stirring in reaction kettle, and combination material is made；
(3) prepared by foamed material: weigh isocyanates, make its with combine the quality proportioning 1:1.8 expected, and by the isocyanic acid
Ester is added in reaction kettle, carries out heating stirring, and foamed material is made；
(4) foaming operation: stirring is stopped to the foamed material stirred evenly, foams, obtains foamed material.
5. the front-wheel Ji according to claim 4 daughter board preparation method of environmental protection flame retardant PU foamed material, it is characterised in that:
Heating temperature is 150-180 DEG C, mixing time 1-2h, mixing speed 300-320r/min in the step (2).
6. the front-wheel Ji according to claim 4 daughter board preparation method of environmental protection flame retardant PU foamed material, it is characterised in that:
Heating temperature is 100-120 DEG C, mixing time 1.5-2.5h, mixing speed 240-300r/min in step (3).
7. the front-wheel Ji according to claim 4 daughter board preparation method of environmental protection flame retardant PU foamed material, it is characterised in that:
Blowing temperature is 50-70 DEG C in step (4), foamed time 0.5-0.7h.
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Application publication date: 20181211 |