CN105694803B - A kind of hot-fusible pressure-sensitive adhesive and its preparation technology - Google Patents
A kind of hot-fusible pressure-sensitive adhesive and its preparation technology Download PDFInfo
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- CN105694803B CN105694803B CN201610129066.XA CN201610129066A CN105694803B CN 105694803 B CN105694803 B CN 105694803B CN 201610129066 A CN201610129066 A CN 201610129066A CN 105694803 B CN105694803 B CN 105694803B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J193/00—Adhesives based on natural resins; Adhesives based on derivatives thereof
- C09J193/04—Rosin
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention belongs to synthetic adhesive technical field, and in particular to a kind of hot-fusible pressure-sensitive adhesive and its preparation technology.Described hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 1 5%, hydrogenated styrene butadiene block copolymer 10 15%, tackifying resin 45 55%, plasticizer 25 35%, solid packing 0 1%, antioxidant 0 0.5%.The present invention is by adding TPUE (TPU), with SEBS blending and modifyings, form skeleton structure, and add the components such as tackifying resin, plasticizer, solid packing, antioxidant, solves the problems, such as such adhesive hydrothermal aging caused by seasonal variety, and its preparation technology is groped, the production cycle is shortened, reduces energy consumption.
Description
Technical field
The invention belongs to synthetic adhesive technical field, and in particular to a kind of hot-fusible pressure-sensitive adhesive and its preparation technology.
Background technology
Hot-fusible pressure-sensitive adhesive is a kind of adhesive for having two kinds of characteristics of PUR and pressure sensitive adhesive concurrently, based on thermoplastic elastomer (TPE)
Body material, tackifier, plasticizer, antioxidant and the adhesive of other additives melting are added, PUR is had concurrently and pressure sensitive adhesive is double
Weight characteristic；This kind of adhesive is coated with the molten state, the after-applied slight finger pressure of hardening by cooling just can quick-binding, while its energy
Relatively easily it is stripped, does not pollute by adhesive surface, main application and packaging, label, amenities, medical supplies, special type
The fields such as bonding.But hot-fusible pressure-sensitive adhesive in processing and placement process because of colloidal materials aging, different degrees of mistake can be caused
The problems such as viscous, glue surface embrittlement, production accident risk in its Process of Applying Glue be present, this phenomenon is by summer high temperature high humidity, winter
Low temperature drying climatic effect is particularly evident.
The content of the invention
In view of the above-mentioned problems, the present invention proposes a kind of hot-fusible pressure-sensitive adhesive and its preparation technology, the present invention is by adding heat
Plastic polyurethane elastomer (TPU), with SEBS blending and modifyings, skeleton structure is formed, and add tackifying resin, plasticizer, solid
The components such as filler, antioxidant, solve the problems, such as such adhesive hydrothermal aging caused by seasonal variety, and to its preparation technology
Groped, shorten the production cycle, reduce energy consumption.
A kind of hot-fusible pressure-sensitive adhesive of the present invention, by percentage to the quality, TPUE 1-5%, hydrogen
Change styrene-butadiene block copolymer 10-15%, tackifying resin 45-55%, plasticizer 25-35%, solid packing 0-1%,
Antioxidant 0-0.5%.
TPUE in the present invention selects Desmopan WDP85786A TPUEs,
Its intensity is relatively low, and ductility is good, and ultraviolet radiation resisting performance protrudes, and also has extra high elasticity and low temperature flexibility in addition.
Its content accounts for the 1%-5% of hot-fusible pressure-sensitive adhesive gross mass.The too small then ageing resistace of content improves unobvious, excessive, weakens
Main body " skeleton " effect of block copolymer.TPUE content largely determines the anti-of PUR
Hygrothermal Properties, the excellent thermoplastic polyurethane of ageing resistace is chosen as blend components, is blended with SEBS, compatibility is good, fits
Close fabric coating.Coated substrate surface can with TPU-NCO group acts on and to form firm ammonia ester bond and urea bond, simultaneously
The interphase interaction of polar bond in both fiber and PUR forms hydrogen bond, and high polymer material easily penetrates into fibre in PUR
Between dimension, it can promote to bond.
Hydrogenated styrene-butadiene block copolymer selects Kraton G1650, because Kraton G1650SEBS are elastic
S block content 30% in body, content is moderate.Experiment finds that then cohesive force is stronger for elastomer S block content height, and S block content is low
It is relatively good toward in ancient times gluing.Test data shows that the mass content of elastomer often increases by 1%, and melt viscosity rises 500cps.Relatively
In the YH-791SBS of identical S block content, Kraton G1650SEBS are products after hydrogenation, and oxidation resistance is strong.Its content accounts for
Between the 15%-20% of hot-fusible pressure-sensitive adhesive gross mass.Content is excessive, can make it that the cohesive force of hot-fusible pressure-sensitive adhesive is excessive, so as to drop
The low wetability to base material, content is too small, then the cohesive force of PUR is relatively low so that it is compacted that low temperature easily occurs for hot-fusible pressure-sensitive adhesive
Become.This component plays " skeleton " effect in hot-fusible pressure-sensitive adhesive system.
Tackifying resin selects rosin pentaerythritol resin, the preferably moderate KA100L rosin resins of oxidation resistance, and it contains
Amount accounts for the 45%-55% of hot-fusible pressure-sensitive adhesive gross mass.Content is excessive, can reduce the cohesive force of PUR, and content is too small, then because embedding
Section copolymer level is high and make it that the cohesive force of hot-fusible pressure-sensitive adhesive is excessive, so as to reduce the wetability to base material.Relative to hydrogenation
For rosin resin, the antioxygenic property of KA100L modified rosin resins is weaker, but hydrogenated rosin resin price is high, from economic angle
Degree considers, chooses tackifying resin of the KA100L modified rosin resins as body series.The present invention can be carried using tackifying resin
The viscosity and wellability of high PUR, surface contact effect and specific adhesion performance are improved, obtain preferably viscosity, cohesive strength
Balance between boundary strength.
Plasticizer of the present invention is selected from 4010 cycloalkanes to styrene-butadiene block copolymer more excellent solubility energy
Oil or 4006 naphthenic oils or white oil, its content account for the 22%-32% of hot-fusible pressure-sensitive adhesive gross mass.Plasticizer is too high, and PUR is strong
Degree declines obvious；Plasticizer loading is too low, and the plasticity of PUR is poor, and hardness is high, and glue spraying is difficult.Its mechanism of action is plasticizer point
Son is inserted between polymer molecular chain, weakens the active force of molecule interchain, adds the activity of strand, is reduced poly-
The crystallinity of compound, pliability increase, and improve the cohesive of various base-materials in contact adhesive.
Solid packing of the present invention selects 1250 mesh lightweight CaCO3Particle.Its content accounts for hot-fusible pressure-sensitive adhesive gross mass
0%--1%.Fine particle calcium carbonate auxiliary material content increase can significantly reduce PUR intermolecular cohesion, and melt viscosity is having fine particle calcium carbonate auxiliary material
Declined to a great extent during addition, reduce applying glue difficulty to a certain extent, reduce production cost.Its application field is restricted,
It is only applicable to the non-spraying techniques such as persistence bonding and blade coating.
Antioxidant of the present invention is selected from antioxidant 1010 or antioxidant 268, preferably has for high polymer material
The antioxidant 1010 of more excellent antioxygenic property.Its content accounts for the 0%-0.5% of hot-fusible pressure-sensitive adhesive gross mass.Antioxidant content
Low, antioxidant effect is poor, and too high levels then influence the cohesive force of PUR, cost increase.
Inventor has found to maintain TPUE and hydrogenated styrene-butadiene block copolymer through overtesting
Mass ratio be 90:10-75:When 25, preferably 13:3, hot-fusible pressure-sensitive adhesive has appropriate softening point and melt viscosity.Because TPU's
Hardness is larger, and when TPU too high levels, the hardness and softening point that can make hot-fusible pressure-sensitive adhesive significantly increase.Because-NCO bases in TPU
Group have acts on forming firm ammonia ester bond and urea bond with substrate surface, while the polar bond in both fiber and PUR glue it
Ask that interaction forms hydrogen bond, so the too low effect unobvious for then increasing cohesive force of TPU contents.
Hot-fusible pressure-sensitive adhesive of the present invention, by percentage to the quality, its raw material composition is：TPUE
3%, hydrogenated styrene-butadiene block copolymer 13%, tackifying resin 50%, plasticizer 33.9%, during antioxidant 0.1%,
The performance of the hot-fusible pressure-sensitive adhesive of acquisition is best.
Hot-fusible pressure-sensitive adhesive preparation technology of the present invention, it is concretely comprised the following steps：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 105-145 DEG C, antioxidant and hydrogenation of benzene are added under stirring state
Ethylene-butadiene block copolymer and TPUE, after insulated and stirred 2-3h to whole material melts, heating
To 135-160 DEG C, other remaining raw materials are added, insulated and stirred 2-3h to transparent homogeneous thick liquid, are cooled down after constant temperature degassing
Blocks of solid is made.
In order to avoid colloid aging, the present invention is using first addition hydrogenated styrene-butadiene block copolymer and thermoplasticity
Polyurethane elastomer, the technique for adding tackifying resin.Because the resistance to elevated temperatures of tackifying resin is poor, and hydrogenation of benzene second
The melting of alkene-butadiene block copolymer and TPUE needs the long period again, if first adding thickening
Resin adds hydrogenated styrene-butadiene block copolymer and TPUE, can cause production time mistake
It is long, and then produce colloid aging, and hydrogenated styrene-butadiene block copolymer and TPUE be not easy with
Tackifying resin blending after melting, it is uneven in turn result in material mixing so that and the molecular chain length in PUR is impacted, from
And influence colloid cohesive force.
In production process, in order to hydrogenated styrene-butadiene block copolymer and TPUE have compared with
Suitable swelling rate and its aging is avoided, it is necessary to which plasticizer is heated into 105-145 DEG C.
Styrene-butadiene block copolymer and TPUE to be hydrogenated are all molten in plasticizer
Afterwards, because the later stage needs to add relatively large tackifying resin, situation is declined, it is necessary to first will be whole in order to avoid there is reactor temperature
Individual reaction system is warming up to 135-160 DEG C.Temperature is too low so that reactor temperature is too low, has influence on during subsequent production
Blending effect, it is possible that hydrogenated styrene-butadiene block copolymer and TPUE are because of low temperature
Situation about can not be completely dissolved；Temperature is higher than 160 DEG C, tackifying resin and hydrogenated styrene-butadiene block copolymer and heat
The aging of plastic polyurethane elastomer is more obvious, and material color substantially deepens.
It is of the present invention in order to effectively prevent the contact generation colloidal silica that PUR is melted in reactor with air
Reaction is carried out under vacuumized conditions, and vacuum degree control is in 0.5-0.9 atmospheric pressure.Less than 0.5 atmospheric pressure, in Blending Processes
Caused bubble is more, and degassing time is longer, influences production efficiency；Then energy consumption is higher for higher than 0.9 atmospheric pressure.
Compared with prior art, the present invention has changed the addition sequence of material under vacuumized conditions, reduces reaction temperature
Degree, effectively prevent the aging of colloidal materials, and eliminate the oxidation of environmental air to the full extent, reduce energy
Consumption, improves final products quality.
In summary, the present invention with SEBS blending and modifyings, forms skeleton structure by adding thermoplastic polyurethane (TPU),
And the components such as tackifying resin, plasticizer, solid packing, antioxidant are added, solve such hot-fusible pressure-sensitive adhesive because seasonal variety is drawn
The hydrothermal aging problem risen；Product quality is improved by improving production and processing technology, reduces energy consumption.
Embodiment
Embodiment 1
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 3%, hydrogenation
Styrene-butadiene block copolymer 13%, tackifying resin 50%, plasticizer 33.9%, antioxidant 0.1%.
Described tackifying resin is selected from KA100L rosin resins.
Described plasticizer fat is selected from 4010 naphthenic oils.
Described antioxidant fat is selected from antioxidant 1010.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 105 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 3h to whole material melts, it is warming up to 135
DEG C, other remaining raw materials are added, insulated and stirred 3h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and bulk is made admittedly
Body.
Vacuum in step (2) is 0.9 atmospheric pressure.
Embodiment 2
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 1%, hydrogenation
Styrene-butadiene block copolymer 10%, tackifying resin 55%, plasticizer 33.9%, antioxidant 0.1%.
Described tackifying resin is selected from KA100L rosin resins.
Described plasticizer fat is selected from 4006 naphthenic oils.
Described antioxidant fat is selected from antioxidant 268.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 145 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 2 to whole material melts, 160 DEG C are warming up to,
Other remaining raw materials are added, insulated and stirred 2h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and blocks of solid is made.
Vacuum in step (2) is 0.5 atmospheric pressure.
Embodiment 3
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 3%, hydrogenation
Styrene-butadiene block copolymer 13%, tackifying resin 55%, plasticizer 27.8%, solid packing 1%, antioxidant
0.2%.
Described tackifying resin is selected from KA100L rosin resins.
Described plasticizer fat is selected from white oil.
Described antioxidant fat is selected from antioxidant 268.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 125 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 2.5h to whole material melts, it is warming up to 148
DEG C, other remaining raw materials are added, insulated and stirred 3h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and bulk is made admittedly
Body.
Vacuum in step (2) is 0.7 atmospheric pressure.
Embodiment 4
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 4%, hydrogenation
Styrene-butadiene block copolymer 14%, tackifying resin 48%, plasticizer 33.2%, solid packing 0.5%, antioxidant
0.3%.
Described tackifying resin is selected from KA100L rosin resins.
Described plasticizer fat is selected from 4010 naphthenic oils.
Described antioxidant fat is selected from antioxidant 1010.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 115 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 2h to whole material melts, it is warming up to 140
DEG C, other remaining raw materials are added, insulated and stirred 3h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and bulk is made admittedly
Body.
Vacuum in step (2) is 0.6 atmospheric pressure.
Embodiment 5
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 5%, hydrogenation
Styrene-butadiene block copolymer 15%, tackifying resin 53%, plasticizer 25.8%, solid packing 0.7%, antioxidant
0.5%.
Described tackifying resin is selected from KA100L rosin resins.
Described plasticizer fat is selected from 4010 naphthenic oils.
Described antioxidant fat is selected from antioxidant 1010.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 135 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 2.5h to whole material melts, it is warming up to 155
DEG C, other remaining raw materials are added, insulated and stirred 2h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and bulk is made admittedly
Body.
Vacuum in step (2) is 0.8 atmospheric pressure.
Embodiment 6
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 3%, hydrogenation
Styrene-butadiene block copolymer 12%, tackifying resin 50%, plasticizer 34.6%, solid packing 0.2%, antioxidant
0.2%.
Described tackifying resin is selected from KA100L rosin resins.
Described plasticizer fat is selected from 4010 naphthenic oils.
Described antioxidant fat is selected from antioxidant 1010.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 110 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 3h to whole material melts, it is warming up to 130
DEG C, other remaining raw materials are added, insulated and stirred 2.5h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and bulk is made admittedly
Body.
Vacuum in step (2) is 0.9 atmospheric pressure.
Embodiment 7
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 2.4%, hydrogen
Change styrene-butadiene block copolymer 13.6%, tackifying resin 50%, plasticizer 32.5%, solid packing 1%, antioxidant
0.5%.
Described tackifying resin is selected from KA100L rosin resins.
Described plasticizer fat is selected from 4010 naphthenic oils.
Described antioxidant fat is selected from antioxidant 1010.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 130 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 2.5h to whole material melts, it is warming up to 150
DEG C, other remaining raw materials are added, insulated and stirred 3h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and bulk is made admittedly
Body.
Vacuum in step (2) is 0.5 atmospheric pressure.
Embodiment 8
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 1.5%, hydrogen
Change styrene-butadiene block copolymer 13.5%, tackifying resin 55%, plasticizer 29.5%, antioxidant 0.5%.
Described tackifying resin is selected from KA100L rosin resins.
Described plasticizer fat is selected from 4006 naphthenic oils.
Described antioxidant fat is selected from antioxidant 1010.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 120 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 2h to whole material melts, it is warming up to 145
DEG C, other remaining raw materials are added, insulated and stirred 3h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and bulk is made admittedly
Body.
Vacuum in step (2) is 0.5 atmospheric pressure.
Comparative example 1
A kind of hot-fusible pressure-sensitive adhesive, by percentage to the quality, its raw material composition is：TPUE 3%, hydrogenation
Styrene-butadiene block copolymer 13%, tackifying resin 50%, plasticizer 33.9%, antioxidant 0.1%.
Described tackifying resin is selected from C-100R C5 hydrogenated petroleum resins.
Described plasticizer fat is selected from 4010 naphthenic oils.
Described antioxidant fat is selected from antioxidant 1010.
Its specific preparation process is：
(1) each raw material is weighed in proportion, it is standby；
(2) under vacuumized conditions, plasticizer is heated to 105 DEG C, added under stirring state antioxidant and hydrogenated styrene-
Butadiene block copolymer and TPUE, after insulated and stirred 3h to whole material melts, it is warming up to 135
DEG C, other remaining raw materials are added, insulated and stirred 3h to transparent homogeneous thick liquid, is cooled down after constant temperature degassing and bulk is made admittedly
Body.
Vacuum in step (2) is 0.9 atmospheric pressure.
1 PUR of the present invention of table and prior art PUR performance comparison
As can be seen from Table 1：TPUE and hydrogenated styrene-butadiene block copolymer play bone
Frame is acted on, and the softening point adhesive property of PUR is had a great influence.TPUE is to PUR ageing resistance
Contribute larger so that PUR remains to keep higher peel strength after long-time places aging.Tackifying resin to heat
Glue possesses preferable wettability and adhesion strength.Therefore, embodiment 1,3,4,5,6 maintains prominent ageing resistace.
Embodiment 2 is because factor, the adhesive property such as operation temperature, pressure are affected in antioxidant, processing technology, but prescription design makes
It is obtained to remain to keep relative to the preferable ageing resistace of commercially available PUR.It is relatively low that the design of the prescription of embodiment 7 make it that it has
Cost, although PUR is impacted with the adhesion strength of base material, but still maintain higher ageing resistace.Embodiment 8 because
Tackifying resin content is higher, therefore maintains higher adhesive property, and softening point is lower slightly but still better than commercially available PUR product.Than
Preferable antioxygenic property can be kept compared with example 1, but its relative price is higher, while influenceed it by tackifying resin type and peeled off by force
Spend that lower slightly, softening point is higher, softening point height can cause PUR apply in energy consumption increase.The peel strength energy of commercially available PUR
Basic cementitiousness is kept, but extension standing time is then likely to occur inharmonious phenomenon.By hydrothermal aging in its placement process
Influence, molecule segment occurs portion fractures and causes softening point relatively low, so as to which creep easily occur, is not easy to store, transports.
Claims (8)
- A kind of 1. hot-fusible pressure-sensitive adhesive, it is characterised in that：By percentage to the quality, its raw material composition is：Thermoplastic polyurethane elastic Body 1-5%, hydrogenated styrene-butadiene block copolymer 10-15%, tackifying resin 45-55%, plasticizer 25-35%, solid Filler 0-1%, antioxidant 0-0.5%；Described TPUE selects Desmopan WDP85786A TPUEs；Described hydrogenated styrene-butadiene block copolymer selects Kraton G1650.
- A kind of 2. hot-fusible pressure-sensitive adhesive according to claim 1, it is characterised in that：Described hydrogenated styrene-butadiene is embedding The mass ratio of section copolymer and TPUE is 90:10-75:25.
- A kind of 3. hot-fusible pressure-sensitive adhesive according to claim 1, it is characterised in that：Described hydrogenated styrene-butadiene is embedding The mass ratio of section copolymer and TPUE is 13:3.
- A kind of 4. hot-fusible pressure-sensitive adhesive according to claim 1, it is characterised in that：By percentage to the quality, its raw material forms For：TPUE 3%, hydrogenated styrene-butadiene block copolymer 13%, tackifying resin 50%, plasticizer 33.9%, antioxidant 0.1%.
- A kind of 5. hot-fusible pressure-sensitive adhesive according to claim 1, it is characterised in that：Described tackifying resin is selected from rosin season penta Four alcohol resins.
- A kind of 6. hot-fusible pressure-sensitive adhesive according to claim 1, it is characterised in that：Described plasticizer is selected from 4010 naphthenic oils Or 4006 naphthenic oil or white oil.
- A kind of 7. hot-fusible pressure-sensitive adhesive according to claim 1, it is characterised in that：Described antioxidant is selected from antioxidant 1010 Or antioxidant 268.
- 8. prepare the technique of the hot-fusible pressure-sensitive adhesive described in claim 1, it is characterised in that：It is concretely comprised the following steps：(1) each raw material is weighed in proportion, it is standby；(2) under vacuumized conditions, plasticizer is heated to 105-145 DEG C, added under stirring state antioxidant and hydrogenated styrene- Butadiene block copolymer and TPUE, after insulated and stirred 2-3h to whole material melts, it is warming up to 135-160 DEG C, other remaining raw materials are added, insulated and stirred 2-3h to transparent homogeneous thick liquid, system are cooled down after constant temperature degassing Into blocks of solid；Vacuum in step (2) is 0.5-0.9 atmospheric pressure.
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| CN112878594A (en) * | 2021-01-11 | 2021-06-01 | 安徽金川防水防腐新型材料有限公司 | Preparation process of waterproof material with metal mesh interlayer inside |
| CN113858743A (en) * | 2021-09-30 | 2021-12-31 | 江西若邦科技股份有限公司 | SMD heat-seal type upper cover tape |
| CN113752663A (en) * | 2021-09-30 | 2021-12-07 | 江西若邦科技股份有限公司 | Upper cover tape |
| CN114350291B (en) * | 2022-01-07 | 2022-12-23 | 广州鹿山新材料股份有限公司 | Water-resistant sweat-resistant hot-melt pressure-sensitive adhesive and preparation method and application thereof |
| EP4368682A1 (en) * | 2022-11-10 | 2024-05-15 | Bostik SA | Hot melt pressure-sensitive adhesive composition |
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| EP2147960A1 (en) * | 2008-07-23 | 2010-01-27 | Tesa AG | Adhesive mass for reversible UV-stable adhesive bands |
| CN101760001A (en) * | 2008-12-19 | 2010-06-30 | 上海日之升新技术发展有限公司 | Thermoplastic elastomer composition for bonding ABS and preparation method thereof |
| CN101445713A (en) * | 2009-01-05 | 2009-06-03 | 衡阳科泰化工有限公司 | Hot melt pressure sensitive adhesive and preparation process thereof |
| CN101928535A (en) * | 2010-08-20 | 2010-12-29 | 沈阳天荣电缆材料有限公司 | Hot melting pressure-sensitive adhesive for joint of cable semi-conductive tape and manufacture method thereof |
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| CN105694803A (en) | 2016-06-22 |
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