CN105985504A - Medium-density rigid polyurethane foam material and preparation method thereof - Google Patents
Medium-density rigid polyurethane foam material and preparation method thereof Download PDFInfo
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- CN105985504A CN105985504A CN201510040105.4A CN201510040105A CN105985504A CN 105985504 A CN105985504 A CN 105985504A CN 201510040105 A CN201510040105 A CN 201510040105A CN 105985504 A CN105985504 A CN 105985504A
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Abstract
The invention provides a medium-density rigid polyurethane foam material and a preparation method thereof and relates to a composition material, a structural material and preparation methods thereof. The material is prepared from: polyether polyol A, polyether polyol B, polyether polyol C, water, N,N-dimethylcyclohexane, pentametyl diethylene triamine, N-formyl morpholine, glycerol, silicone oil and polyisocyanate. The rigid polyurethane foam material has long raw material storage period, has good texture and light weight, is convenient to produce and prepare, is low in production cost and good in support strength, has better compression resistance and good buffer and anti-shock performance, is free of shrinkage, is water-proof and anti-moth, and is suitable for packaging precise instruments and devices, electronic components and communication tools and the like.
Description
Technical field
One Midst density polyurethane rigid foam material of the present invention and preparation method thereof refers to a kind of composite, a kind of structural material and preparation method thereof, it is adaptable to packaging precision instrument, equipment, electronic devices and components, communication tool etc..
Background technology
Instrument, equipment are in transportation, for preventing it to be damaged, generally require and use the packaging material with cushioning effect.More common packaging material have metal, paper, foamed poly styrene plastic etc.; but these traditional packaging material also exist or this or that shortcoming; such as; although metal packing material has high intensity; instrument and equipment can be protected from the destruction of external force; if but instrument, equipment self bumps against with it, owing to it lacks buffering toughness, instrument, equipment can be damaged equally；Although papery packaging, foamed poly styrene plastic packaging have certain buffering toughness; but intensity is relatively low; in other words, these packaging anti-collision effect are preferable, but anti-extrusion less effective; additionally; papery packaging will waste substantial amounts of paper, and the making raw material of paper is mainly timber, so; excessive use papery packaging nature causes a large amount of timber to be cut down, and is unfavorable for environmental conservation and water and soil conservation；And the polystyrene used in foamed poly styrene plastic the most often has monomer styrene and separates out, unfavorable to health, it is easily generated white pollution after abandoning.
Polyurethane full name is polyurethanes, is the general designation containing the macromolecular compound repeating carbamate groups on main chain.It is to be formed with dihydroxy or polyol addition polymerization by organic diisocyanate or polyisocyanates.Polyurethane material, have that heat-insulation and heat-preservation, light weight shock resistance be good, convenient formation, production efficiency advantages of higher, thus there is the widest purposes, can substitute for rubber, plastics, nylon etc., heat-insulating heat-preserving material as the different occasion such as airport, hotel, household, Factory Building, it is also possible to as instrument, the packaging material etc. of equipment.Thus, in recent years, polyurethane rigid foam material is generally accepted by people for packaging field.But traditional polyurethane packaging material raw-material storing phase is short, density is relatively big, relatively costly, and fragility is big, and shock resistance is not good enough, and resilience is bad.
So, invent a kind of novel Midst density polyurethane rigid foam material and preparation method thereof the most necessary.
Summary of the invention
It is an object of the invention to invent a kind of Midst density polyurethane rigid foam material and preparation method thereof, this Midst density polyurethane rigid foam material is in addition to the features such as easy to process, the lightweight with general polyurethane material, density is lower, shock resistance is good, anti-pressure ability is strong, resilience is good, is one more preferably packaging material.
A kind of Midst density polyurethane rigid foam material, is prepared from by the raw material including following parts by weight:
Polyether polyol A
20～30
Polyether polyol B
20～30
Polyether polyol C
20～40
Water
10～18
N, N-dimethyl cyclohexyl amine
0.1～0.2
Pentamethyl-diethylenetriamine
0.8～1.2
N-N-formyl morpholine N
0.4～0.8
Glycerol
2～4
Silicone oil
4～6
Polyisocyanates
100
One Midst density polyurethane rigid foam material of the present invention, wherein said polyether polyol A hydroxyl value is 20～40mgKOH/g, acid number≤0.08 mgKOH/g.
One Midst density polyurethane rigid foam material of the present invention, wherein said polyether polyol B hydroxyl value is 280～310mgKOH/g, acid number≤0.08
mgKOH/g。
One Midst density polyurethane rigid foam material of the present invention, wherein said polyether polyol C hydroxyl value is 420～460mgKOH/g, acid number≤0.15mgKOH/g.
One Midst density polyurethane rigid foam material of the present invention, wherein said silicone oil is polyoxygenated alkene-mutually embedding copolymer of polysiloxanes, belongs to nonionic surfactant, and viscosity (25 DEG C) is 650～850mPa s.
One Midst density polyurethane rigid foam material of the present invention, wherein said polyisocyanates NCO therein mass fraction is 29～33%.
A kind of preparation method of the Midst density polyurethane rigid foam material of the present invention, it comprises the following steps:
(1), each raw material is weighed by formula ratio；
(2) 10～20min are stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle5～1 × 103Get rid of bubble 10～20min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 5～15min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 5～15min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 53～73 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
One Midst density polyurethane rigid foam material of the present invention, manufactures convenient, traditional polyurethane foam production technology equipment and can be directly used for its production and processing, and in production process, mechanization degree is higher, and required labour force is less, and production cost is low.A kind of polyurethane packaging material are compared with metal packing material, and buffering shock resistance is good, and texture is good, lightweight, convenient transportation, low cost；A kind of polyurethane packaging material are compared with paper wrapper, and water resistance is good, does not damages by worms, and support strength is high, it is not necessary to cut down substantial amounts of trees, beneficially water and soil conservation and environmental conservation；A kind of polyurethane packaging material are compared with foamed poly styrene plastic and other polyurethane packaging material, and intensity is higher, is unlikely to deform, and will not discharge toxic gas styrene, more environmentally friendly；A kind of polyurethane packaging material polyurethane packaging material traditional with other are compared; it is long that raw material stores the phase, and density is relatively low, and shock resistance is more preferable; do not bounce back; intensity is higher, and resistance to compression effect is more preferable, and support force is bigger; during use; both can prevent from colliding, it is possible to prevent extruding, more preferable to the protective value of instrument, equipment, communication tool etc..
Detailed description of the invention
Hereinafter use embodiment a kind of Midst density polyurethane rigid foam material illustrating the present invention and preparation method thereof.
Embodiment 1: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 30mgKOH/g)
25kg
Polyether polyol B (hydroxyl value is 295mgKOH/g)
25kg
Polyether polyol C (hydroxyl value is 440mgKOH/g)
30kg
Water
14kg
N, N-dimethyl cyclohexyl amine
0.15kg
Pentamethyl-diethylenetriamine
1kg
N-N-formyl morpholine N
0.6kg
Glycerol
3kg
Silicone oil (viscosity (25 DEG C) is 750mPa s)
5kg
Polyisocyanates (NCO mass fraction is 31%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 15min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle4Get rid of bubble 15min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 10min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 10min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 63 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 2: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 20mgKOH/g)
20kg
Polyether polyol B (hydroxyl value is 280mgKOH/g)
20kg
Polyether polyol C (hydroxyl value is 420mgKOH/g)
20kg
Water
10kg
N, N-dimethyl cyclohexyl amine
0.1kg
Pentamethyl-diethylenetriamine
0.8kg
N-N-formyl morpholine N
0.4kg
Glycerol
2kg
Silicone oil (viscosity (25 DEG C) is 650mPa s)
4kg
Polyisocyanates (NCO mass fraction is 29%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 10min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle5Get rid of bubble 10min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 5min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 5min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 53 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 3: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 40mgKOH/g)
30kg
Polyether polyol B (hydroxyl value is 310mgKOH/g)
30kg
Polyether polyol C (hydroxyl value is 460mgKOH/g)
40kg
Water
18kg
N, N-dimethyl cyclohexyl amine
0.2kg
Pentamethyl-diethylenetriamine
1.2kg
N-N-formyl morpholine N
0.8kg
Glycerol
4kg
Silicone oil (viscosity (25 DEG C) is 850mPa s)
6kg
Polyisocyanates (NCO mass fraction is 33%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 20min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle3Get rid of bubble 20min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 15min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 15min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 73 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 4: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 20mgKOH/g)
25kg
Polyether polyol B (hydroxyl value is 310mgKOH/g)
20kg
Polyether polyol C (hydroxyl value is 440mgKOH/g)
40kg
Water
10kg
N, N-dimethyl cyclohexyl amine
0.15kg
Pentamethyl-diethylenetriamine
1.2kg
N-N-formyl morpholine N
0.4kg
Glycerol
3kg
Silicone oil (viscosity (25 DEG C) is 850mPa s)
4kg
Polyisocyanates (NCO mass fraction is 31%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 20min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle5Get rid of bubble 15min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 15min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 5min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 63 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 5: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 30mgKOH/g)
30kg
Polyether polyol B (hydroxyl value is 280mgKOH/g)
25kg
Polyether polyol C (hydroxyl value is 460mgKOH/g)
20kg
Water
14kg
N, N-dimethyl cyclohexyl amine
0.2kg
Pentamethyl-diethylenetriamine
0.8kg
N-N-formyl morpholine N
0.6kg
Glycerol
3kg
Silicone oil (viscosity (25 DEG C) is 650mPa s)
5kg
Polyisocyanates (NCO mass fraction is 33%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 10min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle4Get rid of bubble 20min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 5min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 10min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 73 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 6: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 40mgKOH/g)
20kg
Polyether polyol B (hydroxyl value is 295mgKOH/g)
30kg
Polyether polyol C (hydroxyl value is 420mgKOH/g)
30kg
Water
18kg
N, N-dimethyl cyclohexyl amine
0.1kg
Pentamethyl-diethylenetriamine
1kg
N-N-formyl morpholine N
0.8kg
Glycerol
2kg
Silicone oil (viscosity (25 DEG C) is 750mPa s)
6kg
Polyisocyanates (NCO mass fraction is 29%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 15min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle3Get rid of bubble 10min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 10min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 15min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 53 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 7: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 20mgKOH/g)
30kg
Polyether polyol B (hydroxyl value is 280mgKOH/g)
30kg
Polyether polyol C (hydroxyl value is 420mgKOH/g)
40kg
Water
18kg
N, N-dimethyl cyclohexyl amine
0.15kg
Pentamethyl-diethylenetriamine
1.2kg
N-N-formyl morpholine N
0.6kg
Glycerol
4kg
Silicone oil (viscosity (25 DEG C) is 750mPa s)
5kg
Polyisocyanates (NCO mass fraction is 29%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 15min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle5Get rid of bubble 15min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 5min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 5min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 73 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 8: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 20mgKOH/g)
20kg
Polyether polyol B (hydroxyl value is 295mgKOH/g)
25kg
Polyether polyol C (hydroxyl value is 460mgKOH/g)
40kg
Water
10kg
N, N-dimethyl cyclohexyl amine
0.1kg
Pentamethyl-diethylenetriamine
1kg
N-N-formyl morpholine N
0.6kg
Glycerol
4kg
Silicone oil (viscosity (25 DEG C) is 850mPa s)
4kg
Polyisocyanates (NCO mass fraction is 33%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 10min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle4Get rid of bubble 20min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 10min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 15min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 63 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 9: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 40mgKOH/g)
30kg
Polyether polyol B (hydroxyl value is 280mgKOH/g)
30kg
Polyether polyol C (hydroxyl value is 460mgKOH/g)
20kg
Water
10kg
N, N-dimethyl cyclohexyl amine
0.1kg
Pentamethyl-diethylenetriamine
1kg
N-N-formyl morpholine N
0.4kg
Glycerol
2kg
Silicone oil (viscosity (25 DEG C) is 750mPa s)
5kg
Polyisocyanates (NCO mass fraction is 31%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 20min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle4Get rid of bubble 15min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 15min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 15min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 73 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 10: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 30mgKOH/g)
30kg
Polyether polyol B (hydroxyl value is 295mgKOH/g)
20kg
Polyether polyol C (hydroxyl value is 460mgKOH/g)
40kg
Water
18kg
N, N-dimethyl cyclohexyl amine
0.1kg
Pentamethyl-diethylenetriamine
1.2kg
N-N-formyl morpholine N
0.6kg
Glycerol
2kg
Silicone oil (viscosity (25 DEG C) is 650mPa s)
6kg
Polyisocyanates (NCO mass fraction is 33%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 20min is stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle3Get rid of bubble 15min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 10min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 10min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 53 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Embodiment 11: a kind of Midst density polyurethane rigid foam material and preparation method thereof, its preparation process is:
Polyether polyol A(hydroxyl value is 25mgKOH/g)
28kg
Polyether polyol B (hydroxyl value is 286mgKOH/g)
28kg
Polyether polyol C (hydroxyl value is 440mgKOH/g)
33kg
Water
16kg
N, N-dimethyl cyclohexyl amine
0.12kg
Pentamethyl-diethylenetriamine
1.1kg
N-N-formyl morpholine N
0.7kg
Glycerol
3.5kg
Silicone oil (viscosity (25 DEG C) is 700mPa s)
4.6kg
Polyisocyanates (NCO mass fraction is 30%)
100kg
(1), each raw material is weighed by formula ratio；
(2) 13min is stirred, 1.6 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle4Get rid of bubble 14min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 8min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 12min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 66 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
Prove the performance of the Midst density polyurethane rigid foam material of the embodiment of the present invention 1 below by way of detection, its testing result is as follows:
When 63 DEG C, cream time 3.2s, rise time 19s, unsticking time 16s, density: 9.26g/m3, comprcssive strength: 1.25MPa, impact strength: 1.13kJ/m2, illustrate that this material has good building-up property and mechanical performance.
Claims (7)
1. a Midst density polyurethane rigid foam material, it is characterised in that be prepared from by the raw material of following parts by weight:
Polyether polyol A
20～30
Polyether polyol B
20～30
Polyether polyol C
20～40
Water
10～18
N, N-dimethyl cyclohexyl amine
0.1～0.2
Pentamethyl-diethylenetriamine
0.8～1.2
N-N-formyl morpholine N
0.4～0.8
Glycerol
2～4
Silicone oil
4～6
Polyisocyanates
100。
A kind of Midst density polyurethane rigid foam material the most according to claim 1, it is characterised in that described polyether polyol A hydroxyl value is 20～40mgKOH/g, acid number≤0.08 mgKOH/g.
A kind of Midst density polyurethane rigid foam material the most according to claim 1, it is characterised in that described polyether polyol B hydroxyl value is 280～310mgKOH/g, acid number≤0.08 mgKOH/g.
A kind of Midst density polyurethane rigid foam material the most according to claim 1, it is characterised in that described polyether polyol C hydroxyl value is 420～460mgKOH/g, acid number≤0.15mgKOH/g.
A kind of Midst density polyurethane rigid foam material the most according to claim 1, it is characterised in that described silicone oil is polyoxygenated alkene-mutually embedding copolymer of polysiloxanes, belongs to nonionic surfactant, and viscosity (25 DEG C) is 650～850mPa s.
A kind of Midst density polyurethane rigid foam material the most according to claim 1, it is characterised in that described polyisocyanates NCO therein mass fraction is 29～33%.
The preparation method of a kind of Midst density polyurethane rigid foam material the most according to claim 1, it is characterised in that its preparation process comprises the following steps:
(1), each raw material is weighed by formula ratio；
(2) 10～20min are stirred, 1 × 10 in, by polyether polyol A, polyether polyol B, polyether polyol C, glycerol and silicone oil being placed in mechanical stirring kettle5～1 × 103Get rid of bubble 10～20min under Pa vacuum, be prepared as main compound；
(3), by water, N, N-dimethyl cyclohexyl amine, pentamethyl-diethylenetriamine and N-N-formyl morpholine N mixing 5～15min, it is prepared as auxiliary compound；
(4), by main compound and auxiliary compound mechanical mixture 5～15min, it is prepared as white material premixed systems；
(5), utilize foaming machines extraction white material premixed systems and isocyanates (black material), at 53～73 DEG C, both are mixed free foaming, make a kind of Midst density polyurethane rigid foam material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148167A (en) * | 2017-12-26 | 2018-06-12 | 山东沂蒙博科新型建材有限公司 | Full water low-density open-cellular rigid polyurethane spray foam |
| CN109593175A (en) * | 2018-10-23 | 2019-04-09 | 万华化学（宁波）容威聚氨酯有限公司 | A kind of half aperture polyurethane hard bubble composite material of complete water type and preparation method thereof |
| CN110467709A (en) * | 2019-09-10 | 2019-11-19 | 南通四方节能科技有限公司 | A kind of combined polyether, PIR battenboard and preparation method using its preparation |
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| CN110467709A (en) * | 2019-09-10 | 2019-11-19 | 南通四方节能科技有限公司 | A kind of combined polyether, PIR battenboard and preparation method using its preparation |
| CN110467709B (en) * | 2019-09-10 | 2021-03-02 | 南通四方节能科技有限公司 | Combined polyether, PIR sandwich panel prepared from combined polyether and application of combined polyether and preparation method of PIR sandwich panel |
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