CN109722206A - Two component polyurethane foamed glue and preparation method thereof - Google Patents
Two component polyurethane foamed glue and preparation method thereof Download PDFInfo
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- CN109722206A CN109722206A CN201910021623.XA CN201910021623A CN109722206A CN 109722206 A CN109722206 A CN 109722206A CN 201910021623 A CN201910021623 A CN 201910021623A CN 109722206 A CN109722206 A CN 109722206A
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Abstract
The present invention relates to a kind of two component polyurethane foamed glues and preparation method thereof.The two component polyurethane foamed glue is prepared by component A and B component: the component A is prepared from raw materials including the following parts by weight: 60-70 parts of vegetable oil polyol；10-30 parts of polyether polyol containing hydrophilic radical；5-15 parts of polyalcohol containing epoxy group；1-6 parts of foaming agent；0.5-5 parts of foam stabiliser；1-7 parts of catalyst；The B component is isocyanates.Above-mentioned two component polyurethane foamed glue normal temperature cure, curing rate is adjustable, and cohesive force is strong, and stable system is not stratified, and Storage period is long, at low cost.
Description
Technical field
The present invention relates to field of adhesive technology, more particularly to a kind of two component polyurethane foamed glue and its preparation side
Method.
Background technique
Color steel glass-magnesium sandwich plate is a kind of novel construction material, has good appearance, beautiful in colour, heavy relatively light, intensity
It is high, corrosion-resistant, heat preservation, it is heat-insulated, be easy construction, long service life the features such as, it integrates load-bearing, heat preservation, fire prevention, waterproof,
It without secondary decoration, is quickly and expediently installed, short construction period, comprehensive benefit is good, is widely used in steel-structure factory building metope, room
Face, smallpox, cleaning reconstruction engineering, warehouse, assembled house, roof add layer, enclosure wall panel, freezer, combined padding and drying system, office to separate,
The all trades and professions such as indoor sound absorption.Currently, being applied to the adhesive of color steel glass-magnesium sandwich plate, with manual dual-component polyurethane adhesive
Based on, manual gluing is needed, also to be pressed 5~8 hours, causes the production cycle long, influences manufacturer's production capacity and efficiency.
The color steel glass-magnesium sandwich plate of automated production is to do core material with glass magnesium board, does surface layer with galvanized sheet, poly- with bi-component
Urethane foamed glue is bonded by automating continuous forming machine.But used polyurethane foam glue one side cost compared with
Height, on the other hand since the surface of zinc-plating material has stronger inertia, foamed glue is low to the cohesive force of galvanized sheet, is unable to satisfy
Market needs.
Summary of the invention
Based on this, the present invention provides a kind of two component polyurethane foamed glue and preparation method thereof.The two component polyurethane
Foamed glue has good adhesiveness to zinc-plated plate surface, and cost is relatively low, and stability is good.
The specific technical proposal is:
A kind of two component polyurethane foamed glue, is prepared by component A and B component:
The component A is prepared from raw materials including the following parts by weight:
The B component is isocyanates.
In one of the embodiments, the vegetable oil polyol, the polyether polyols containing hydrophilic radical are pure and mild contains ring
The weight ratio of the polyalcohol of oxygen groups is (6-6.5): (1.8-2.2): 1.
The polyalcohol containing epoxy group is bisphenol A modified polyalcohol in one of the embodiments, and hydroxyl value is
170mgKOH/g-250mgKOH/g。
The hydroxyl value of the polyether polyol containing hydrophilic radical is 150mgKOH/g- in one of the embodiments,
300mgKOH/g。
The vegetable oil polyol is selected from castor oil polyhydric alcohol, soybean oil polyol, cashew nut in one of the embodiments,
One of shell oil polyalcohol is a variety of, hydroxyl value 100mgKOH/g-200mgKOH/g.
The foaming agent is water in one of the embodiments,.
The foam stabiliser is silicone oil in one of the embodiments,.
The catalyst is selected from one of tertiary amine catalyst and organic tin catalyst in one of the embodiments,
Or it is several.
The catalyst is by tertiary amine catalyst and organic tin catalyst according to (7-9) in one of the embodiments:
1 weight ratio mixes.
The tertiary amine catalyst is N, N- dimethyl cyclohexyl amine in one of the embodiments,.
The organic tin catalyst is dibutyl tin dilaurate in one of the embodiments,.
The isocyanates is methyl diphenylene diisocyanate in one of the embodiments,.
The present invention also provides a kind of preparation methods of two component polyurethane foamed glue.
The specific technical proposal is:
A kind of preparation method of two component polyurethane foamed glue, comprising the following steps:
The pure and mild foaming agent of the polyether polyols containing hydrophilic radical is mixed, adds and described contains hydrophilic radical
Polyether polyol, the polyalcohol containing epoxy group, foam stabiliser and catalyst, at normal temperature stir 1-3h to get institute
State component A；
By the component A with the B component with 1:(0.8-1.2) mass ratio mix to get bi-component polyurethane ester foaming
Glue.
Compared with existing scheme, the invention has the following advantages:
The present invention makees vegetable oil polyol, the pure and mild polyalcohol containing epoxy group of the polyether polyols containing hydrophilic radical
For raw material, wherein vegetable oil polyol advantage of lower cost, still, plant polyatomic alcohol is not easy compatible with blowing agent system, adds
, can be miscible with arbitrary proportion with water or vegetable oil polyol after entering the polyether polyol containing hydrophilic radical, increase foamed glue
The stability of system, meanwhile, the polyalcohol containing epoxy group is added, attachment of the foamed glue to metal material can be increased
Power improves foamed glue to the adhesive strength of galvanized sheet.Above-mentioned polyols blend is added to polyurethane foams system, can compared with
Under low cost, preparation adhesion strength is high, system stability is not stratified, Storage period is long, and normal temperature cure, curing time are adjustable
Polyurethane foam glue.
Further, used catalyst is with N, and based on N- dimethyl cyclohexyl amine, N, N- dimethyl cyclohexyl amine is to gel and hair
Bubble has catalytic action, can foamable reaction to foamed glue and gel reaction the catalytic performance of relatively balance is provided, so that reducing has
The dosage of machine tin catalyst, since the price of dibutyl tin dilaurate and tertiary amine catalyst 33LV are much higher than N, N- diformazan
Therefore basic ring hexylamine can further reduce the cost.
Polyurethane foam glue of the invention can be used for automated production coloured silk steel glass-magnesium sandwich plate, improve production efficiency and automatic
Change degree reduces cost of labor.
Specific embodiment
Two component polyurethane foamed glue of the invention and preparation method thereof is made below in conjunction with specific embodiment further detailed
Thin explanation.The invention can be realized in many different forms, however it is not limited to embodiments described herein.On the contrary
Ground, the purpose of providing these embodiments is that making to understand the disclosure of invention more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
Raw material used in following specific embodiments, if it is commercially available for can deriving from without specified otherwise.
Bisphenol A modified dihydric alcohol is that bisphenol-A adds the bisphenol A modified polyalcohol after ethylene oxide or propylene oxide, commercially available
From upper Haitai Lun De Chemical Industry Science Co., Ltd, model DIO-2100.
Hydrophilic radical is non-ionic groups (oxyethylene group) in polyether polyol containing hydrophilic radical, is purchased from sentence
Hold Ningwu new material limited liability company, model NJ-310.
Foam stabiliser is silicone oil, bright up to trade Co., Ltd, model 5501 purchased from section, Shenzhen.
Embodiment 1
(1) preparation of component A
In parts by weight, (molecular weight 800, the hydroxyl value 200mgKOH/ of the polyether polyol by 20 parts containing hydrophilic radical
G) it is added in reaction kettles and stirs with 2 parts of foaming agent water, be uniformly mixed, 63.6 parts of soybean oil polyols are then added, and (hydroxyl value is
140mgKOH/g), 10 parts of bisphenol A modified polyalcohols (hydroxyl value 200mgKOH/g), 1 part of foam stabiliser 5501,3 parts of N, N- bis-
Methyl cyclohexylamine and 0.4 part of dibutyl tin dilaurate stir 2 hours at normal temperature to get the component A.
(2) component A is uniformly mixed with the B component with the mass ratio of 1:1 to get bi-component polyurethane ester foaming
Glue.
Embodiment 2
(1) preparation of component A
In parts by weight, (molecular weight 1200, hydroxyl value are the polyether polyol by 20 parts containing hydrophilic radical
It 150mgKOH/g) is added in reaction kettle and stirs with 2 parts of foaming agent water, be uniformly mixed, 64.7 parts of soybean oil polyols are then added
(hydroxyl value 100mgKOH/g), 10 parts of bisphenol A modified polyalcohols (hydroxyl value 250mgKOH/g), 0.5 part of foam stabiliser 5501,
2.5 parts of N, N- dimethyl cyclohexyl amine and 0.3 part of dibutyl tin dilaurate stir 2 hours at normal temperature to get the component A.
(2) component A is uniformly mixed with the B component with the mass ratio of 1:1 to get bi-component polyurethane ester foaming
Glue.
Embodiment 3
(1) preparation of component A
In parts by weight, (molecular weight 500, the hydroxyl value 300mgKOH/ of the polyether polyol by 20 parts containing hydrophilic radical
G) it is added in reaction kettles and stirs with 2 parts of foaming agent water, be uniformly mixed, 61.5 parts of soybean oil polyols are then added, and (hydroxyl value is
200mgKOH/g), 10 parts of bisphenol A modified polyalcohols (hydroxyl value 170mgKOH/g), 2 parts of foam stabilisers 5501,4 parts of N, N- bis-
Methyl cyclohexylamine and 0.5 part of dibutyl tin dilaurate stir 2 hours at normal temperature to get the component A.
(2) component A is uniformly mixed with the B component with the mass ratio of 1:1 to get bi-component polyurethane ester foaming
Glue.
Embodiment 4
(1) preparation of component A
In parts by weight, (molecular weight 800, the hydroxyl value 200mgKOH/ of the polyether polyol by 15 parts containing hydrophilic radical
G) it is added in reaction kettles and stirs with 2 parts of foaming agent water, be uniformly mixed, 68.6 parts of soybean oil polyols are then added, and (hydroxyl value is
140mgKOH/g), 10 parts of bisphenol A modified polyalcohols (hydroxyl value 200mgKOH/g), 1 part of foam stabiliser 5501,3 parts of N, N- bis-
Methyl cyclohexylamine and 0.4 part of dibutyl tin dilaurate stir 2 hours at normal temperature to get the component A.
(2) component A is uniformly mixed with the B component with the mass ratio of 1:1 to get bi-component polyurethane ester foaming
Glue.
Comparative example 1
(1) preparation of component A
In parts by weight, (molecular weight 800, the hydroxyl value 200mgKOH/ of the polyether polyol by 5 parts containing hydrophilic radical
G) it is added in reaction kettles and stirs with 2 parts of foaming agent water, be uniformly mixed, 88.6 parts of soybean oil polyols are then added, and (hydroxyl value is
140mgKOH/g), 10 parts of bisphenol A modified polyalcohols (hydroxyl value 200mgKOH/g), 1 part of foam stabiliser 5501,3 parts of N, N- bis-
Methyl cyclohexylamine and 0.4 part of dibutyl tin dilaurate stir 2 hours at normal temperature to get the component A.
(2) component A is uniformly mixed with the B component with the mass ratio of 1:1 to get bi-component polyurethane ester foaming
Glue.
Comparative example 2
(1) preparation of component A
In parts by weight, (molecular weight 800, the hydroxyl value 200mgKOH/ of the polyether polyol by 20 parts containing hydrophilic radical
G) it is added in reaction kettles and stirs with 2 parts of foaming agent water, be uniformly mixed, 63.6 parts of soybean oil polyols are then added, and (hydroxyl value is
140mgKOH/g), 10 parts of 1007,1 part of polyalcohol Sovermol, 5501,3 parts of foam stabiliser N, N- dimethyl cyclohexyl amine and
0.4 part of dibutyl tin dilaurate stirs 2 hours at normal temperature to get the component A.
(2) component A is uniformly mixed with the B component with the mass ratio of 1:1 to get bi-component polyurethane ester foaming
Glue.
Wherein, epoxy group is not contained in the structure of polyalcohol Sovermol 1007, is had purchased from Shenzhen's Jia Dida chemical industry
Limit company.
Comparative example 3
(1) preparation of component A
In parts by weight, 20 parts of polyether polyol DL-1000D and 2 parts of foaming agent water are added in reaction kettle and are stirred, mixed
Uniformly, 63.6 parts of soybean oil polyols (hydroxyl value 140mgKOH/g) are then added, (hydroxyl value is for 10 parts of bisphenol A modified polyalcohols
200mgKOH/g), 1 part of foam stabiliser, 5501,3 parts of N, N- dimethyl cyclohexyl amine and 0.4 part of dibutyl tin dilaurate, normal
Temperature lower stirring 2 hours to get the component A.
(2) component A is uniformly mixed with the B component with the mass ratio of 1:1 to get bi-component polyurethane ester foaming
Glue.
Wherein, hydrophilic radical is not contained in the structure of polyether polyol DL-1000D, purchased from the big limited public affairs in Shandong blue star east
Department.
Performance test
The performance of the two component polyurethane foaming agent of embodiment and comparative example is tested, test method and result are such as
Under:
Foamed time: in 7 disposable beakers, it is separately added into the two component polyurethane of each embodiment and comparative example of 10g
Foamed glue component A, then it is separately added into 10g B component, it stirs at once to it and starts to foam, record from the time for being stirred to foaming,
As foamed time.
Curing time: in 7 disposable beakers, it is separately added into the two component polyurethane of each embodiment and comparative example of 10g
Foamed glue component A adds 10g B component, stirs at once to it and start to foam, and record touches glue with finger from starting to be stirred to
Surface, if adhesion without adhesiver, on finger, the corresponding time is curing time.
The bonding of glass magnesium board and galvanized sheet: the identical glass magnesium board of 7 stock materials and the identical galvanized sheet of 7 stock materials are taken.It will be each
The component A of embodiment and comparative example preparation is respectively coated in 7 pieces of glass magnesium boards, and the B component of each embodiment and comparative example is distinguished
Coated on 7 pieces of galvanized sheets, corresponding glass magnesium board and galvanized sheet are bonded respectively, make the component A and B of each embodiment and comparative example
Component mixing, with timing is started after clamp 3min, for 24 hours after, glass magnesium board and galvanized sheet are separated, observation glass magnesium board surface is broken
Bad situation.
Test result is as shown in table 1.
Table 1
As shown in Table 1, the pure and mild polyalcohol containing epoxy group of vegetable oil polyol, the polyether polyols containing hydrophilic radical
Be added in foamed glue system in certain proportion, can at lower cost, prepare adhesion strength is high, system stability regardless of
The long polyurethane foam glue of layer, Storage period.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of two component polyurethane foamed glue, which is characterized in that be prepared by component A and B component:
The component A is prepared from raw materials including the following parts by weight:
The B component is isocyanates.
2. two component polyurethane foamed glue according to claim 1, which is characterized in that the vegetable oil polyol contains
The weight ratio of the pure and mild polyalcohol containing epoxy group of the polyether polyols of hydrophilic radical is (6-6.5): (1.8-2.2): 1.
3. two component polyurethane foamed glue according to claim 1, which is characterized in that described to contain the polynary of epoxy group
Alcohol is bisphenol A modified polyalcohol, hydroxyl value 170mgKOH/g-250mgKOH/g.
4. two component polyurethane foamed glue according to claim 1, which is characterized in that the polyethers containing hydrophilic radical
The hydroxyl value of polyalcohol is 150mgKOH/g-300mgKOH/g.
5. two component polyurethane foamed glue according to claim 1, which is characterized in that the vegetable oil polyol is selected from castor
One of sesame oil polyalcohol, soybean oil polyol, cashew nut shell oil polyalcohol are a variety of, hydroxyl value 100mgKOH/g-
200mgKOH/g。
6. two component polyurethane foamed glue according to claim 1-5, which is characterized in that the foaming agent is
Water.
7. two component polyurethane foamed glue according to claim 1-5, which is characterized in that the foam stabiliser
For silicone oil.
8. two component polyurethane foamed glue according to claim 1-5, which is characterized in that the catalyst is by uncle
Amines catalyst and organic tin catalyst are according to (7-9): 1 weight ratio mixes.
9. two component polyurethane foamed glue according to claim 8, which is characterized in that the tertiary amine catalyst is N, N-
Dimethyl cyclohexyl amine.
10. the preparation method of the described in any item two component polyurethane foamed glues of claim 1-9, which is characterized in that including with
Lower step:
The pure and mild foaming agent of the polyether polyols containing hydrophilic radical is mixed, is added described poly- containing hydrophilic radical
Ethoxylated polyhydric alcohol, the polyalcohol containing epoxy group, foam stabiliser and catalyst stir 1-3h at normal temperature to get the A group
Point；
By the component A with the B component with 1:(0.8-1.2) mass ratio mix to get two component polyurethane foamed glue.
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| CN111057212A (en) * | 2019-12-26 | 2020-04-24 | 江苏舜天新盈轻工业有限公司 | Preparation process of graphene oxide polyurethane sealing foaming adhesive and foaming adhesive |
| CN111057213A (en) * | 2019-12-31 | 2020-04-24 | 北京市市政工程研究院 | Latent curing polyurethane material for maintaining hinge joint of fabricated concrete hollow slab bridge and preparation method thereof |
| CN111234763A (en) * | 2020-01-19 | 2020-06-05 | 广西壮族自治区林业科学研究院 | Compound foaming adhesive for light shaving board |
| CN111502112A (en) * | 2020-03-30 | 2020-08-07 | 葫芦岛市石鑫绿色建筑材料有限公司 | Inorganic composite polyphenyl non-combustible heat preservation sandwich board assembled wall |
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| CN114213620A (en) * | 2021-12-27 | 2022-03-22 | 江门市长河化工实业集团有限公司 | Prefabricated polyurethane foaming adhesive and preparation method thereof |
| CN114276774A (en) * | 2021-12-21 | 2022-04-05 | 上海宏诺建筑科技有限公司 | Solvent-free bi-component foamed polyurethane adhesive and application thereof |
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| CN114276774A (en) * | 2021-12-21 | 2022-04-05 | 上海宏诺建筑科技有限公司 | Solvent-free bi-component foamed polyurethane adhesive and application thereof |
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