CN102690627A - Preparing method for polyurethane wet curing hot melt flat adhesive and application thereof - Google Patents
Preparing method for polyurethane wet curing hot melt flat adhesive and application thereof Download PDFInfo
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- CN102690627A CN102690627A CN2012101874390A CN201210187439A CN102690627A CN 102690627 A CN102690627 A CN 102690627A CN 2012101874390 A CN2012101874390 A CN 2012101874390A CN 201210187439 A CN201210187439 A CN 201210187439A CN 102690627 A CN102690627 A CN 102690627A
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Abstract
The invention belongs to the technical field of chemical adhesive, and relates to a preparing method for polyurethane wet curing hot melt flat adhesive and application thereof. The polyurethane wet curing hot melt flat adhesive is composed of the following components in parts by weight: a polyester polyol mixture, a polyether polyol mixture, xylene diisocynate, a plasticizer, a chain extender, a tackifier and a catalyst, wherein the relative molecular mass of the polyester polyol mixture is 1000-5000; the relative molecular mass of the polyether polyol mixture is 1500-6000; the polyurethane wet curing hot melt flat adhesive contains no organic solvent, the solid content is 100%, the 'positioning' time is short, the pasting between the decorative film and the base material to be decorated is rapid and accurate, the bonding strength is high, the anti-stripping performance is good, the cured adhesive film is soft and flexible, the cured adhesive film has no cryogenic brittleness at low temperature, and the cured adhesive film also has water resistance and weak acid and weak base resistance and is capable of the operating environment with 80 DEG temperature.
Description
Technical field
The invention belongs to the synthetic adhesive technical field, relate to the tackiness agent that uses on a kind of furniture, the building materials industry, specifically a kind of smooth decoration is with smooth glue of urethane moisture curing hot melt and preparation method thereof.
Background technology
In the past, the tackiness agent that decoration process uses in furniture, the building material industry all was solvent cement or water-base cement, and resinous principle comprises epoxy, phenolic aldehyde, urea aldehyde, carbamide, white glue with vinyl, multi-purpose adhesive etc.But the shortcoming of these tackiness agent is to be heating and curing, or requires low by the water ratio of adhesives; More fatal is that these tackiness agent all contain free formaldehyde or the organic solvent that damages environment is arranged, and human health, production and living environment are exerted an influence.From glue-applying technique; Chemical crosslink reaction or solvent flashing need take place in their solidification process; Need the regular hour from applying glue (be coated with, spray, brush, roller coat etc.) to primary solidification (locating two kinds of sticking parts of quilts), thereby limited robotization and working efficiency with the glue process.
Polyurethane adhesive is applied to timber and decoration industry is the thing that just had in recent years, and industrially developed country such as the U.S., Italy, Japan, Germany are obtaining significant achievement aspect the development of moisture cure urethanes adhesive.For example, U.S. POLYMER TECHNOLOGY (Bora science and technology) company, German Jowat (glue king), Kleiberit companies such as (gram force are precious) have developed the hot melt adhesive product of a lot of excellent propertys, have effectively promoted hot melt adhesive in these Application for Field.Domestic Shanghai intelligence hot melt adhesive far away, Condar, Wuxi Lay grace science and technology, Yantai letter friendship, good, the wide Shenzhen of Dongguan king roc be rich contains companies such as industry and has carried out scientific effort in good early stage; Some initial achievements and related prods have been obtained; But remain in some gaps with the downstream requirement of client; Particularly the flexibility to different glue-applying techniques and application performance is generally not enough, has influenced the typing production in enormous quantities and the market sale of hot melt adhesive product.
So-called smooth, be meant that the surface that need decorate for furniture, sheet material is smooth, and a kind of veneer of area when relatively large decorated (seeing accompanying drawing 1).Its decoration technology is flat push type gluing and pressing in proper order, requires to catch up with the bubble in the most liquid laminate, guarantee not exist between base material and the veneerer " cavity ", and closely knit being adjacent to, whole is bonding firm.And product in the market is difficult to reach this requirement.
Summary of the invention
To the deficiency of prior art, the present invention aims to provide smooth glue of urethane moisture curing hot melt that a kind of furniture and finishing material edge sealing use and preparation method thereof.The smooth glue of this urethane moisture curing hot melt does not contain any organic solvent, solid content 100%, and " location " time is short; Paste the decorations film and pasted fast between the decorations base material, accurately, bonding strength is high, and antistripping is good; Glued membrane after the curing is soft; Springiness, not cold short under the low temperature, can be water-fast, weak acid and weak base and the environment for use below 80 ℃.
Technical scheme of the present invention is:
The smooth glue of a kind of urethane moisture curing hot melt, according to listed as parts by weight, raw material comprises following composition:
100 parts in polyether glycol mixture
800 parts～1400 parts of polyester polyols alcohol mixtures
200 parts～255 parts of benzhydryl vulcabonds
180 parts～230 parts in softening agent
18 parts～32 parts of chainextenders;
Wherein, the relative molecular mass of polyester polyols alcohol mixture is 1000～5000; Said polyester polyols alcohol mixture is selected from the polyester polyol among trade mark PHL-1600, trade mark PH-2000, trade mark CMA-1044 and the trade mark CMA-44 one or more; The relative molecular mass of polyether glycol mixture is 1500～6000; The polyether glycol mixture is selected from one or more in the polyether glycol of the trade mark 4110, trade mark LDL-3000DF, trade mark LDL-4000D, trade mark N-330, trade mark N-251, trade mark ZS-2012, trade mark GP-104G, trade mark DL-2000D and trade mark EP-330N.
It is one of following two kinds that the moity of said polyester polyols alcohol mixture and weight part ratio are preferably:
(1) trade mark PHL-1600 is 30 parts～50 parts
15 parts～35 parts of trade mark CMA-1044;
(2) trade mark PHL-1600 is 30 parts～50 parts
1 part～25 parts of trade mark PH-2000
15 parts～35 parts of trade mark CMA-1044
1 part～12 parts of trade mark CMA-44;
The moity of said polyether glycol mixture and weight part ratio are preferably:
4,110 40 parts～60 parts of the trades mark
30 parts～35 parts of trade mark N-330
20 parts～30 parts of trade mark N-251
8 parts～15 parts of trade mark GP-104G
10 parts～24 parts of trade mark EP-330N.
Said softening agent is preferably polyamide resin, and chainextender is preferably YH-55 coupling agent or YE-44 epoxy resin.
Raw material can also comprise the filler of 7～10 weight parts, the tackifier of 7～10 weight parts and the recessive catalyzer of 1～1.5 weight part; Said filler is preferably nanometer grade silica; Said tackifier are preferably modified rosin resin, and said recessive catalyzer is preferably dual-morpholinyl diethyl ether.
The method for preparing the smooth glue of urethane moisture curing hot melt; Take by weighing in polyester polyols alcohol mixture, polyether glycol mixture, softening agent, tackifying resin, filler, the chainextender adding reaction kettle according to above-mentioned weight part proportioning; Be warming up under 90 ℃～120 ℃ under the pressure of-0.08 MPa～-0.1 MPa melt, dewatering does not have bubble to the liquid material and overflows, and is cooled to 80 ℃～100 ℃, adds benzhydryl vulcabond polyreaction 3 h～4h again; Isocyano molar content until remnants reaches 0.2%-3%; Add recessive catalyzer then, continue dispersed with stirring 20 min～40 min, be cooled to 60 ℃～80 ℃; Filtered while hot, discharging promptly obtain the smooth glue of urethane moisture curing hot melt.
The bonding strength of the smooth glue of said urethane moisture curing hot melt is 20 MPa～25MPa, and the open hour are 140 seconds～160 seconds, and anti-90 ° of stripping strengths reach 8 N/ cm ~ 16 N/ cm.
The application of the smooth glue of urethane moisture curing hot melt of the present invention in solid wood plate, middle and high degree of consolidation plate, veneer sheet and plastics, alloy or composite sheet are smooth.
Do further explanation and explanation in the face of the present invention down:
Raw material sources according to the invention are commercial currently available products.
In the formulating of recipe of reactive moisture cure urethanes hot melt adhesive; Generally be through change isocyanic acid and polyethers in the formula material (with or ester) mol ratio (being called for short the R value) adjust the melting viscosity and the open hour of product, change bonding strength, setting time and the curing speed of product through the proportioning of adjusting polyether glycol and polyester polyol.The design starting point of this smooth glue is that the R value gets 1.5～2.0, and the proportioning of polyether glycol and polyester polyol is 1:8～14.
Compared with prior art, the smooth glue of urethane moisture curing hot melt of the present invention has following advantage:
1. the smooth glue of urethane moisture curing hot melt of the present invention does not contain any organic solvent, and environmental protection is nontoxic, and is little to the pollution that environment produces, and meets the environmental protection policy and the industrial development direction of China.
2. the smooth glue high solid of urethane moisture curing hot melt of the present invention.This hot melt adhesive is 100% solid form, and solidification process does not produce low-molecular material, and the film forming shrinking percentage is low, and utilization of materials is high.
3. smooth glue primary solidification (opening) time of urethane moisture curing hot melt of the present invention is short, pastes the decorations film and rapidly, accurately is suitable for automated construction and control by location between the decorations base material, increases work efficiency.
4. the smooth glue of urethane moisture curing hot melt of the present invention utilizes the moisture in base material or the environment to carry out cross-linking reaction curing, and bonding strength is high, and antistripping is good.
5. glued membrane after the smooth adhesive curing of urethane moisture curing hot melt of the present invention is soft, and springiness is not cold short under the low temperature, can be water-fast, weak acid and weak base and the environment for use below 80 ℃.
Description of drawings
Fig. 1 wraps up a kind of mode synoptic diagram of applying with the smooth glue of urethane moisture curing hot melt of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is described further, but protection scope of the present invention is not limited to this.All raw materials of the present invention are commercial currently available products, can directly find from network and buy producer.
Embodiment 1:
(1) weighing cooperates the polyester polyols alcohol mixture, and its moity and weight part ratio are:
35 parts of trade mark PHL-1600
10 parts of trade mark PH-2000
30 parts of trade mark CMA-1044
10 parts of trade mark CMA-44;
The moity of said polyether glycol mixture and weight part ratio are:
4,110 40 parts of the trades mark
31 parts of trade mark N-330
25 parts of trade mark N-251
10 parts of trade mark GP-104G
12 parts of trade mark EP-330N;
(2) take by weighing by weight ratio in 100 parts in polyether glycol mixture, 1400 parts of polyester polyols alcohol mixtures, 14 parts of YH-55 coupling agents, 200 parts of polyamide resins and 8 parts of adding reaction kettles of modified rosin resin; Be warming up under 120 ℃ under the pressure of-0.08～-0.1 MPa melt, dewatering does not have bubble to the liquid material and overflows, and is cooled to 90 ℃, again 220 parts of benzhydryl vulcabonds of weighing; Add polyreaction 3.5 h in the reaction kettle; Isocyano molar content until remnants reaches 0.9%, continues dispersed with stirring 30min, is cooled to 60 ℃; Filtered while hot, discharging immediately pack and promptly get the smooth glue of urethane moisture curing hot melt.
Smooth glue Amount of spread 70 g/m of the urethane of present embodiment gained
2, 150 seconds open hour, (see figure 1) when being used for water ratio and being the splicing of 8～18% wood substrates can obtain good bonding strength, and bonding strength is more than the 20MPa, and anti-90 ° of stripping strengths reach 12 N/cm.
Embodiment 2:
(1) weighing cooperates the polyester polyols alcohol mixture, and its moity and weight part ratio are:
40 parts of trade mark PHL-1600
20 parts of trade mark CMA-44;
The moity of said polyether glycol mixture and weight part ratio are:
4,110 50 parts of the trades mark
35 parts of trade mark N-330
22 parts of trade mark N-251
9 parts of trade mark GP-104G
20 parts of trade mark EP-330N
8 parts of trade mark ZS2012;
(2) take by weighing by weight ratio in 100 parts in polyether glycol mixture, 800 parts of polyester polyols alcohol mixtures, 16 parts of YH-44 coupling agents, 230 parts of polyamide resins and 10 parts of modified rosin resins, 10 parts of adding reaction kettles of nano silicon; Be warming up under 110 ℃ under the pressure of-0.08～-0.1 MPa melt, dewatering does not have bubble to the liquid material and overflows; Be cooled to 80 ℃, 230 parts of benzhydryl vulcabonds of weighing add polyreaction 3 h in the reaction kettle again; Isocyano molar content until remnants reaches 1.2%; Add 1 part of dual-morpholinyl diethyl ether then, continue dispersed with stirring 35min, be cooled to 65 ℃; Filtered while hot, discharging immediately pack and promptly get the smooth glue of urethane moisture curing hot melt.
The smooth glue Amount of spread of the urethane of present embodiment gained 85g/m
2, 150 seconds open hour, (see figure 1) when being used for water ratio and being the splicing of 8～18% wood substrates can obtain good bonding strength, and bonding strength is more than the 20MPa, and anti-90 ° of stripping strengths reach 11 N/cm.
Embodiment 3:
(1) weighing cooperates the polyester polyols alcohol mixture, and its moity and weight part ratio are:
35 parts of trade mark PHL-1600
8 parts of trade mark PH-2000
20 parts of trade mark CMA-1044
8 parts of trade mark CMA-44;
The moity of said polyether glycol mixture and weight part ratio are:
4,110 42 parts of the trades mark
30 parts of trade mark N-330
20 parts of trade mark N-251
15 parts of trade mark GP-104G
11 parts of trade mark EP-330N;
(2) take by weighing by weight ratio in 100 parts in polyether glycol mixture, 1100 parts of polyester polyols alcohol mixtures, 13 parts of YH-55 coupling agents, 9 parts of adding reaction kettles of 200 parts of nano silicons of polyamide resin; Be warming up under 115 ℃ under the pressure of-0.08～-0.1 MPa melt, dewatering does not have bubble to the liquid material and overflows; Be cooled to 80 ℃, 180 parts of benzhydryl vulcabonds of weighing add polyreaction 3 h in the reaction kettle again; Isocyano molar content until remnants reaches 1.5%; Add 1 part of dual-morpholinyl diethyl ether then, add and continue dispersed with stirring 40min, be cooled to 60 ℃; Filtered while hot, discharging immediately pack and promptly get the smooth glue of urethane moisture curing hot melt.
The smooth glue Amount of spread of the urethane of present embodiment gained 65g/m
2, 145 seconds open hour, (see figure 1) when being used for water ratio and being the splicing of 8～18% wood substrates can obtain good bonding strength, and bonding strength is more than the 20MPa, and anti-90 ° of stripping strengths reach 13 N/cm.
Embodiment 4-6:
The making processes of embodiment 4 to embodiment 6 and above-mentioned routine 1 roughly the same, the raw material consumption takes by weighing by data given in the table 1, adds, the heating and cooling working order is also similar with said procedure.Open hour are 60～180 seconds, when being used for water ratio and being the splicing of 5～25% wood substrates good Joint strength are arranged all, and anti-90 ° of stripping strengths reach 8～16 N/cm, give unnecessary details no longer one by one here.
The parts by weight of raw materials adding proportion of table 1 embodiment 1-6
Claims (7)
1. smooth glue of urethane moisture curing hot melt is characterized in that according to listed as parts by weight, raw material comprises following composition:
100 parts in polyether glycol mixture
800 parts～1400 parts of polyester polyols alcohol mixtures
200 parts～255 parts of benzhydryl vulcabonds
180 parts～230 parts in softening agent
18 parts～32 parts of chainextenders;
Wherein, the relative molecular mass of polyester polyols alcohol mixture is 1000～5000; Said polyester polyols alcohol mixture is selected from the polyester polyol among trade mark PHL-1600, trade mark PH-2000, trade mark CMA-1044 and the trade mark CMA-44 one or more; The relative molecular mass of polyether glycol mixture is 1500～6000; The polyether glycol mixture is selected from one or more in the polyether glycol of the trade mark 4110, trade mark LDL-3000DF, trade mark LDL-4000D, trade mark N-330, trade mark N-251, trade mark ZS-2012, trade mark GP-104G, trade mark DL-2000D and trade mark EP-330N.
2. according to the smooth glue of the said urethane moisture curing of claim 1 hot melt, it is characterized in that the moity of said polyester polyols alcohol mixture and weight part ratio are one of following two kinds:
(1) trade mark PHL-1600 is 30 parts～50 parts
15 parts～35 parts of trade mark CMA-1044;
(2) trade mark PHL-1600 is 30 parts～50 parts
1 part～25 parts of trade mark PH-2000
15 parts～35 parts of trade mark CMA-1044
1 part～12 parts of trade mark CMA-44;
The moity of said polyether glycol mixture and weight part ratio are:
4,110 40 parts～60 parts of the trades mark
30 parts～35 parts of trade mark N-330
20 parts～30 parts of trade mark N-251
8 parts～15 parts of trade mark GP-104G
10 parts～24 parts of trade mark EP-330N.
3. according to the smooth glue of the said urethane moisture curing of claim 1 hot melt, it is characterized in that said softening agent is a polyamide resin, chainextender is YH-55 coupling agent or YE-44 epoxy resin.
4. according to the smooth glue of the said urethane moisture curing of claim 1 hot melt; It is characterized in that; Raw material also comprises the filler of 7～10 weight parts, the tackifier of 7～10 weight parts and the recessive catalyzer of 1～1.5 weight part; Said filler is a nanometer grade silica, and said tackifier are modified rosin resin, and said recessive catalyzer is a dual-morpholinyl diethyl ether.
5. the method for preparing the smooth glue of one of claim 1～4 said urethane moisture curing hot melt; It is characterized in that, take by weighing polyester polyols alcohol mixture, polyether glycol mixture, softening agent, tackifying resin, filler, chainextender according to above-mentioned weight part proportioning and add in the reaction kettle, be warming up under 90 ℃～120 ℃ under the pressure of-0.08 MPa～-0.1 MPa melt, dewatering does not have bubble to the liquid material and overflows; Be cooled to 80 ℃～100 ℃; Add benzhydryl vulcabond polyreaction 3 h～4h again, reach 0.2%-3%, add recessive catalyzer then until the isocyano molar content of remnants; Continue dispersed with stirring 20 min～40 min; Be cooled to 60 ℃～80 ℃, filtered while hot, discharging promptly obtain the smooth glue of urethane moisture curing hot melt.
6. according to the preparation method of the smooth glue of claim 5 said urethane moisture curing hot melt; It is characterized in that; The bonding strength of the smooth glue of said urethane moisture curing hot melt is 20 MPa～25MPa, and the open hour are 140 seconds～160 seconds, and anti-90 ° of stripping strengths reach 8 N/ cm ~ 16 N/ cm.
7. the application of the smooth glue of the said urethane moisture curing of one of claim 1～4 hot melt in solid wood plate, middle and high degree of consolidation plate, veneer sheet and plastics, alloy or composite sheet are smooth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101874390A CN102690627A (en) | 2012-06-08 | 2012-06-08 | Preparing method for polyurethane wet curing hot melt flat adhesive and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101874390A CN102690627A (en) | 2012-06-08 | 2012-06-08 | Preparing method for polyurethane wet curing hot melt flat adhesive and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897652A (en) * | 2014-04-16 | 2014-07-02 | 山东北方现代化学工业有限公司 | Environment-friendly high-strength polyurethane adhesive sealant and preparation method thereof |
| CN108467704A (en) * | 2018-04-09 | 2018-08-31 | 翟琳 | A kind of thermoplastic polyurethane edge sealing hot melt adhesive for furniture |
| CN110894415A (en) * | 2019-11-10 | 2020-03-20 | 苏州欧纳克纳米科技有限公司 | Polyurethane adhesive |
| CN110894414A (en) * | 2019-11-10 | 2020-03-20 | 苏州欧纳克纳米科技有限公司 | High-water-resistance polyurethane adhesive |
| CN114958279A (en) * | 2022-01-27 | 2022-08-30 | 固申新材料(上海)有限公司 | High-performance hybrid two-component polyurethane adhesive and preparation method and application thereof |
-
2012
- 2012-06-08 CN CN2012101874390A patent/CN102690627A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897652A (en) * | 2014-04-16 | 2014-07-02 | 山东北方现代化学工业有限公司 | Environment-friendly high-strength polyurethane adhesive sealant and preparation method thereof |
| CN103897652B (en) * | 2014-04-16 | 2016-04-06 | 山东北方现代化学工业有限公司 | A kind of environment protection type high-strength polyurethane adhesive/seal gum and preparation method thereof |
| CN108467704A (en) * | 2018-04-09 | 2018-08-31 | 翟琳 | A kind of thermoplastic polyurethane edge sealing hot melt adhesive for furniture |
| CN110894415A (en) * | 2019-11-10 | 2020-03-20 | 苏州欧纳克纳米科技有限公司 | Polyurethane adhesive |
| CN110894414A (en) * | 2019-11-10 | 2020-03-20 | 苏州欧纳克纳米科技有限公司 | High-water-resistance polyurethane adhesive |
| CN114958279A (en) * | 2022-01-27 | 2022-08-30 | 固申新材料(上海)有限公司 | High-performance hybrid two-component polyurethane adhesive and preparation method and application thereof |
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Application publication date: 20120926 |