CN105038638B - Ultraviolet-resistant hot melt adhesive used for digital inkjet advertising base material and preparation method thereof - Google Patents
Ultraviolet-resistant hot melt adhesive used for digital inkjet advertising base material and preparation method thereof Download PDFInfo
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- CN105038638B CN105038638B CN201510402272.9A CN201510402272A CN105038638B CN 105038638 B CN105038638 B CN 105038638B CN 201510402272 A CN201510402272 A CN 201510402272A CN 105038638 B CN105038638 B CN 105038638B
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Abstract
The invention provides an ultraviolet-resistant hot melt adhesive used for a digital inkjet advertising base material and a preparation method thereof. The ultraviolet-resistant hot melt adhesive is composed of the following components by weight: 40% to 60% of an ethylene-vinyl acetate copolymer, 10% to 30% of an ethylene-methacrylic acid copolymer, 10% to 20% of polybutylene terephthalate, 5% to 10% of an antioxidant, 0.2% to 5% of an ultraviolet absorber, 0.3% to 3% of a hindered amine stabilizer, 3.5% to 6% of C9 petroleum resin and 1% to 4% of disulfonic acid. The ultraviolet-resistant hot melt adhesive provided by the invention has the advantages of high bonding strength, good transparency, rain and sun protection, strong ultraviolet-resistant capability, ageing resistance, yellowing resistance and long service life; the ultraviolet-resistant hot melt adhesive is in a solid state at room temperature, is convenient to carry and does not need any organic solvent for preparation; meanwhile, the ultraviolet-resistant hot melt adhesive is non-toxic and environment-friendly and has simple preparation process and lower cost.
Description
Technical field
The invention belongs to PUR technical field, and in particular to for the ultraviolet light PUR of digital painting advertising base material
And preparation method thereof.
Background technology
PUR its physical state in certain temperature range changes with temperature and changes, and chemical characteristic is constant, its nothing
Poison is tasteless, belongs to environmental-protecting chemical product, in being widely used in various painting advertisement base materials.Patent No. 2012105691399
Patent of invention disclose a kind of heat resistant type transparency polyolefin PUR and preparation method thereof.The PUR has excellent electricity absolutely
Edge performance and optical property, and good thermostability and adhesive property.The PUR of the present invention is used for digital painting advertising base
Material bonding is used, and one layer of PUR is coated between basic unit and ink-absorbed coated layer, and hot pressing is carried out after air brushing, and PUR melts infiltration blotting
Coating, forms layer protective layer after cooling.The PUR ultraviolet light ability of the present invention is strong, prevents advertisement base material to be particularly open air
Advertisement base material due to be exposed to the sun in the sun and peeling, change colour, split the problems such as, printing pattern is bright-coloured, lifelike image.
The content of the invention
The present invention mainly solves the problems of prior art, there is provided a kind of adhesion strength is high, transparent good, rain-proof
Sun-proof ultraviolet light PUR for digital painting advertising base material and preparation method thereof.
The invention discloses a kind of ultraviolet light PUR for digital painting advertising base material, the advertisement base material includes
Basic unit and ink-absorbed coated layer, contain silicon dioxide in ink-absorbed coated layer, ultraviolet light PUR is arranged between basic unit and ink-absorbed coated layer,
Carry out hot pressing after air brushing on ink-absorbed coated layer, ultraviolet light PUR melts, from oozing between the particle of ink-absorbed coated layer and printing pattern
Top is covered in thoroughly and film is rapidly condensed into and forms protective layer, it is characterised in that the ultraviolet light PUR is by weight percentage
It is composed of the following components：
Ethylene-vinyl acetate copolymer（EVA）40%-60%；
Ethylene-methacrylic acid copolymer（EMAA）10%-30%；
Polybutylene terephthalate (PBT)（PBT）10%-20%；
Antioxidant 5%-10%；
UV absorbers 0.2%-5 %；
Hindered amine stabilizer 0.3-3%；
C9 Petropols 3.5-6%；
Disulfonic acid 1%-4%.
Containing some polar functional group in the ultraviolet light PUR composition of the present invention, the carbonyl in such as EVA,
Carboxyl in EMAA, the carbonyl in PBT etc..These functional groups provide and the interaction between base material and blotting material so as to
With good adhesive force, so as to improve adhesion strength.
Preferably, the PUR is composed of the following components by weight percentage：Ethylene-vinyl acetate copolymer 50%；
Ethylene-methacrylic acid copolymer 18%；Polybutylene terephthalate (PBT) 15%；Antioxidant 7%；The % of UV absorbers 2；
Hindered amine stabilizer 2%；C9 Petropols 4%；Disulfonic acid 2%.
Preferably, the UV absorbers are one or more in UV328, UV327, UV326.
Preferably, the hindered amine stabilizer is UV123 or UV144.
Preferably, the content of vinyl acetate is 5-20% in the ethylene-vinyl acetate copolymer.
Preferably, the antioxidant is Butylated hydroxyanisole (BHA), dibenzylatiooluene (BHT), Galla Turcica (Galla Helepensis)
One or more in propyl propionate (PG).
The invention also discloses the preparation method of the ultraviolet light PUR for digital painting advertising base material, including it is as follows
Step：（1）Each component weight is weighed by formula proportion；（2）By ethylene-vinyl acetate copolymer, ethylene-methyl methacrylate copolymerization
Thing, polybutylene terephthalate (PBT), antioxidant, UV absorbers, hindered amine stabilizer, C9 Petropols, disulfonic acid
Stir, it is uniform to be put in heater melting mixing, temperature 120-180 DEG C, minute time 20-30；（3）Cooling is obtained into
Product.
The beneficial effect that the present invention brings is：
1st, ultraviolet light melt viscosity knotting strength of the invention is high, good, the rain and sun performance of the transparency is good, ultraviolet light energy
Power is strong, aging resistance, yellowing-resistant.It is true to nature using advertisement base material picture image obtained in ultraviolet light PUR of the invention, it is prolonged
It is durable.
2. it is solid-state under the ultraviolet light PUR room temperature of the present invention, is convenient for carrying, it is not necessary to matched somebody with somebody using organic solvent
System, product asepsis environment-protecting will not bring harmful effect to the body of operator, and cost is cheaper.Preparation process is simple, makes
Used time is coated in the basic unit of advertisement base material with coating machine heating.
Specific embodiment
Below by embodiment, technical scheme is described in further detail.
Embodiment 1
Following components is weighed by weight percentage：50%EVA resins, the content of vinylacetate is 10% in EVA resin,
18%EMAA, 15%PBT, 7% antioxidant Butylated hydroxyanisole (BHA), 2% UV absorbers UV328,2% be obstructed it is amine stabilized
Agent UV123,4%C9 Petropols and 2% disulfonic acid, it is uniform to be put in heater melting mixing, 150 DEG C of temperature, 25 minutes time；
Cooling finished product.Its performance test is as shown in table 1.
Embodiment 2
Following components is weighed by weight percentage：40%EVA resins, the content of vinylacetate is 5% in EVA resin,
30%EMAA, 10%PBT, 9.8% antioxidant dibenzylatiooluene (BHT), 0.2% UV absorbers UV327,3% receives
Resistance amine stabiliser UV144,6%C9 Petropols and 1% disulfonic acid, it is uniform to be put into melting mixing in heater, 120 DEG C of temperature, when
Between 20 minutes；Cooling finished product.Its performance test is as shown in table 1.
Embodiment 3
Following components is weighed by weight percentage：60%EVA resins, the content of vinylacetate is 20% in EVA resin,
12.2%EMAA, 10%PBT, 5% antioxidant propylgallate (PG), 5% UV absorbers UV326,0.3% hindered amine is steady
Determine agent UV123,3.5%C9 Petropols and 4% disulfonic acid, it is uniform to be put in heater melting mixing, 180 DEG C of temperature, the time 30
Minute；Cooling finished product.Its performance test is as shown in table 1.
Embodiment 4
Following components is weighed by weight percentage：48%EVA resins, the content of vinylacetate is 15% in EVA resin,
10%EMAA, 20%PBT, 10% antioxidant Butylated hydroxyanisole (BHA), 3% UV absorbers UV328,1% hindered amine is steady
Determine agent UV144,5%C9 Petropols and 3% disulfonic acid, it is uniform to be put in heater melting mixing, 150 DEG C of temperature, 25 points of time
Clock；Cooling finished product.Its performance test is as shown in table 1.
Comparative example 1
Following components is weighed by weight percentage：50%EVA resins, the content of vinylacetate is 10% in EVA resin,
18%EMAA, 15%PBT, 7% antioxidant Butylated hydroxyanisole (BHA), 0.1% UV absorbers UV328,3.9% hindered amine
Stabilizer UV123,4%C9 Petropols and 2% disulfonic acid, it is uniform to be put in heater melting mixing, 150 DEG C of temperature, the time 25
Minute；Cooling finished product.Its performance test is as shown in table 1.
Comparative example 2
Following components is weighed by weight percentage：50%EVA resins, the content of vinylacetate is 10% in EVA resin,
18%EMAA, 15%PBT, 5% antioxidant Butylated hydroxyanisole (BHA), 5.8% UV absorbers UV328,0.2% hindered amine
Stabilizer UV123,4%C9 Petropols and 2% disulfonic acid, it is uniform to be put in heater melting mixing, 150 DEG C of temperature, the time 25
Minute；Cooling finished product.Its performance test is as shown in table 1.
Obtained PUR in above-described embodiment is uniformly coated and the thick film samples of 0.2mm are crushed into, with lamination
Mechanism obtains sample, carries out the performance tests such as adhesion strength, light transmittance, softening point temperature；Put sample into ultraviolet light and aging test
Case, accelerated weathering test is carried out to sample, and ultraviolet wavelength is 313nm, and exposure experiments to light temperature adopts 70 DEG C, the week of illumination condensation
Phase selects 4H illumination, 4H condensations.Test data result is as shown in table 1：
The performance test data table of table 1
As can be seen from Table 1, the ultraviolet light PUR of digital painting advertising base material prepared in accordance with the present invention is in bonding
The aspects such as intensity, light transmittance, melt index, ultraviolet light all highly significants, long service life.
Above-mentioned specific embodiment is used for illustrating the present invention, rather than limits the invention, the present invention's
In spirit and scope of the claims, any modifications and changes made to the present invention both fall within the protection model of the present invention
Enclose.
Claims (7)
1. application of a kind of ultraviolet light PUR in digital painting advertising base material, it is characterised in that the advertisement base material includes base
Layer and ink-absorbed coated layer, contain silicon dioxide in ink-absorbed coated layer, ultraviolet light PUR is arranged between basic unit and ink-absorbed coated layer,
Hot pressing is carried out on ink-absorbed coated layer after air brushing, ultraviolet light PUR melts, permeates between the particle of ink-absorbed coated layer and printing pattern
It is covered in top and is rapidly condensed into film and forms protective layer；The ultraviolet light PUR is by weight percentage by following components group
Into：
Ethylene-vinyl acetate copolymer 40%-60%；
Ethylene-methacrylic acid copolymer 10%-30%；
Polybutylene terephthalate (PBT) 10%-20%；
Antioxidant 5%-10%；
UV absorbers 0.2%-5%；
Hindered amine stabilizer 0.3-3%；
C9 Petropols 3.5-6%；
Disulfonic acid 1%-4%.
2. application of the ultraviolet light PUR according to claim 1 in digital painting advertising base material, it is characterised in that institute
State PUR composed of the following components by weight percentage：Ethylene-vinyl acetate copolymer 50%；Ethylene-methyl methacrylate is total to
Polymers 18%；Polybutylene terephthalate (PBT) 15%；Antioxidant 7%；UV absorbers 2%；Hindered amine stabilizer
2%；C9 Petropols 4%；Disulfonic acid 2%.
3. application of the ultraviolet light PUR according to claim 1 and 2 in digital painting advertising base material, it is characterised in that
The UV absorbers are one or more in UV328, UV327, UV326.
4. application of the ultraviolet light PUR according to claim 1 and 2 in digital painting advertising base material, it is characterised in that
The hindered amine stabilizer is UV123 or UV144.
5. application of the ultraviolet light PUR according to claim 1 and 2 in digital painting advertising base material, it is characterised in that
The content of vinyl acetate is 5-20% in the ethylene-vinyl acetate copolymer.
6. application of the ultraviolet light PUR according to claim 1 and 2 in digital painting advertising base material, it is characterised in that
The antioxidant is one or more in Butylated hydroxyanisole, dibenzylatiooluene, propylgallate.
7. the preparation method of the ultraviolet light PUR of digital painting advertising base material is used for, it is characterised in that comprised the steps：
(1) percentage by weight as described in claim 1 weighs each component weight；(2) by ethylene-vinyl acetate copolymer, ethylene-methyl
Acrylic copolymer, polybutylene terephthalate (PBT), antioxidant, UV absorbers, hindered amine stabilizer, C9 oil trees
Fat, disulfonic acid stir, and it is uniform to be put in heater melting mixing, temperature 120-180 DEG C, minute time 20-30；(3) it is cold
But finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510402272.9A CN105038638B (en) | 2015-07-10 | 2015-07-10 | Ultraviolet-resistant hot melt adhesive used for digital inkjet advertising base material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402272.9A CN105038638B (en) | 2015-07-10 | 2015-07-10 | Ultraviolet-resistant hot melt adhesive used for digital inkjet advertising base material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105038638A CN105038638A (en) | 2015-11-11 |
| CN105038638B true CN105038638B (en) | 2017-05-17 |
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| CN112063319A (en) * | 2020-09-14 | 2020-12-11 | 福建泰安预涂膜有限公司 | High-temperature-resistant and water-resistant pre-coating film and preparation process and application thereof |
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| DE3462799D1 (en) * | 1983-12-12 | 1987-04-30 | Takeda Chemical Industries Ltd | Heat adherable resin compositions and aluminum sheet laminated with the compositions |
| CN101289599A (en) * | 2008-06-04 | 2008-10-22 | 金尔昇 | Process for dispersing hot-melt adhesive fillers |
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