CN110205065A - A kind of elasticity hot-fusible pressure-sensitive adhesive and the preparation method and application thereof - Google Patents
A kind of elasticity hot-fusible pressure-sensitive adhesive and the preparation method and application thereof Download PDFInfo
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- CN110205065A CN110205065A CN201910527946.6A CN201910527946A CN110205065A CN 110205065 A CN110205065 A CN 110205065A CN 201910527946 A CN201910527946 A CN 201910527946A CN 110205065 A CN110205065 A CN 110205065A
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- sensitive adhesive
- fusible pressure
- hot
- reaction kettle
- polymer
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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
-
- 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
- C09J11/08—Macromolecular additives
-
- 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
- C09J157/00—Adhesives based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09J157/02—Copolymers of mineral oil hydrocarbons
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
Abstract
The invention discloses a kind of elastic hot-fusible pressure-sensitive adhesives and the preparation method and application thereof, the elasticity hot-fusible pressure-sensitive adhesive is prepared by the component of following weight percent: polymer 30-50%, plasticizer 10-30%, Petropols 40-60%, antioxidant 1-2%, polyisobutene 3-5%, the sum of mass percent of said components are 100%；Elasticity hot-fusible pressure-sensitive adhesive prepared by the present invention has good elastic restoration ratio, it can be used for preparing elastic compound, applied to disposable absorbent article elastomeric material position, replace elastic material spandex, each section of disposable product is assigned with tensile properties, the structure of traditional elastic compound is changed simultaneously, is reduced to 3 layers of elastic compound of non-woven fabric, hot melt adhesive, non-woven fabric, material cost is saved, while also optimizing preparation process；Preparation process strong operability, flow setting is reasonable, and at producing, defect rate is low, production efficiency.
Description
Technical field
The present invention relates to hot melt adhesive applied technical field more particularly to a kind of elastic hot-fusible pressure-sensitive adhesive and preparation method thereof with
Using.
Background technique
Hot melt adhesive is a kind of adhesive of plasticity, belongs to environmental-protecting chemical product.In industry adhesive field, heat fusing
Adhesive is typically formed the elastic compound that can be used in disposable product, and as being applied to paper diaper, trousers are drawn in drawing, in absorption
In trousers, amenities and medical dressing (for example, Wound care products), especially current paper diaper, drawing draw the disposable system such as trousers
The waistline tightness material position of product makes usually using elastic compound, above-mentioned disposable product is made to have better snug fit
Sense, better leak resistance；Conventional elastic compound is by non-woven fabric, hot melt adhesive, elastic material (spandex), hot melt adhesive, non-
5 layers of formation compound of weaven goods, but that there are hygroscopicity is poor using elastomeric polyurethane fiber material, it is easily-deformable, easy to produce static electricity the disadvantages of.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of elastic hot-fusible pressure-sensitive adhesive and its preparations
Method and application, the elasticity hot-fusible pressure-sensitive adhesive elastic restoration ratio with higher can be used for preparing elastic compound, be applied to one
Secondary property absorbent article elastomeric material position replaces elastic material spandex, assigns each section of disposable product with tensile properties, together
When change traditional elastic compound structure, be reduced to 3 layers of elastic compound of non-woven fabric, hot melt adhesive, non-woven fabric.
An object of the present invention adopts the following technical scheme that realization: a kind of elasticity hot-fusible pressure-sensitive adhesive,
The elasticity hot-fusible pressure-sensitive adhesive is prepared by the component of following weight percent: polymer 30-50%, plasticizer
10-30%, Petropols 40-60%, antioxidant 1-2%, polyisobutene 3-5%, the sum of mass percent of said components are
100%；
The polymer is s-B-S, styrene-isoprene-phenylethene and styrene-fourth two
One or more mixtures of alkene-three kinds of butylene-styrene block copolymer.
Further, the elastic hot-fusible pressure-sensitive adhesive is prepared by the component of following weight percent: polymer 30-
40%, plasticizer 10-20%, Petropols 45-55%, antioxidant 1-1.8%, polyisobutene 3.5-5%, the matter of said components
Measuring the sum of percentage is 100%；
The polymer be s-B-S (SBS), styrene-isoprene-phenylethene (SIS) and
One or more mixtures of styrene-butadiene-three kinds of butylene-styrene block copolymer (SBBS).
Further, the plasticizer is naphthenic oil, white oil, phthalate, one in divinol
Kind.
Further, the Petropols are carbon C5 Petropols, hydrogenation DCPD Petropols, hydrogenation C5 Petropols
Or hydrogenation C9 Petropols.
Further, the polyisobutene is that gathering for the model PB950 of the good woods chemistry in Guangzhou Science and Technology Ltd. is different
One or both of the polyisobutene of the model PB1300 of butylene or Guangzhou good woods chemistry Science and Technology Ltd..
Further, the antioxidant is the antioxidant or Fo Shanyuan of the model 1010 of Foshan Yuan Sheng Chemical Co., Ltd.
Win the antioxidant of the model 168 of Chemical Co., Ltd..
Through the above scheme, the elastic hot-fusible pressure-sensitive adhesive makees polymer using styrene block copolymer, polymer
There are such relationships by viscosity and melt flow rate (MFR) (MFR): the melt flow rate (MFR) (MFR) of polymer is higher, and viscosity is got over
It is low.Styrene block copolymer (SBC) obtained by present market melt flow rate (MFR) (i.e. > 18g/10min (190 DEG C,
2.16kg) higher, corresponding diblock content is also high, this can not only reduce the mechanical performance of polymer and adhesive, but also
It is difficult to prepare the low viscosity hot-melt adhesive that elastic restoration ratio is good and peel adhesion is high.
The polymer selects SBS, SBBS or SIS, since it is with good antioxidant and thermal stability, pyroreaction
When structure be not easy to be destroyed；And due to being free of unsaturated double-bond, it has excellent stability and resistance to ag(e)ing, assigns melt pressure sensitive
The moderate initial bonding strength of glue and good elastic restoration ratio are conducive to the being firmly bonded property of the core of production, after wet water, macromolecule
Water-absorbing resin or wood pulp will not be shifted or be fallen off.
The plasticizer such as naphthenic oil are selected to cooperate polymer reaction, it is good with polymer compatibility, make polymer molecule interchain
Reduced gravity, weakens the aggtegation of molecule interchain, and increases the mobility of strand, flexibility, increases plasticity, is also conducive to
Coating process.
The tackifying resins such as hydrogenation C5 Petropols are selected, the adhesive property and cohesive force of hot-fusible pressure-sensitive adhesive are enhanced, improve stripping
From intensity, chemical property is stablized after hot-fusible pressure-sensitive adhesive finished product, also provides further guarantee for adhesion strength.
Polyisobutene is added can improve flexibility, the tensile property of hot-fusible pressure-sensitive adhesive finished product to a certain extent.
The second object of the present invention adopts the following technical scheme that realization: a kind of preparation method of elasticity hot-fusible pressure-sensitive adhesive,
It is characterized in that, includes the following steps:
S1: confirmation reaction kettle bottom valve is closed, and is opened steam heating, is started agitating paddle, plasticizer and antioxidant is added；
S2: rising to 140-150 DEG C for the temperature of reaction kettle of S1, stirs after polymer is added to polymer melted；
S3: uniformly putting into tackifying resin into the reaction kettle of S2, has all melted to tackifying resin, and liquid petroleum resin is added
And polyisobutene, sufficiently reacted；
S4: to which after the reaction was completed, the melting charge in reaction kettle is filtered in S3；
S5: melting charge filtered in S4 is successively passed through into cooling system, drying system, is finally packed.
Further, it is stirred 10 minutes after polymer being added in the S2, with scraper plate by the tank skin and agitating paddle of reaction kettle
On polymer scrape, continue to stir；After stirring 50min, whether sampling is completely melt, if continuing to stir still with the presence of particle
It mixes, and records extension mixing time.
Further, reaction kettle is vacuumized after material adds in the S3, keeps the temperature in reaction kettle in 140-
150 DEG C, when vacuum degree is 0.07 or more, material does not rise again when expecting, vacuumizes 20-40min.
The third object of the present invention adopts the following technical scheme that realization: a kind of application of elasticity hot-fusible pressure-sensitive adhesive, feature
It is, which applies the elastic position in disposable absorbent article, disposable to absorb system
Product are paper diaper, draw trousers, adult diaper, the one kind for absorbing underpants.
Compared with prior art, the beneficial effects of the present invention are:
1, elastic hot-fusible pressure-sensitive adhesive prepared by the present invention has good elastic restoration ratio, can be used for preparing elastic composite
Object, be applied to disposable absorbent article elastomeric material position, replace elastic material spandex, assign each section of disposable product with
Tensile properties change simultaneously the structure of traditional elastic compound, are reduced to 3 layers of elasticity of non-woven fabric, hot melt adhesive, non-woven fabric
Compound saves material cost, while also optimizing preparation process；
2, elastic melt pressure sensitive adhesiveness prepared by the present invention is lower, can be used for the life of disposable sanitary product high-speed line
It produces；
3, preparation process strong operability of the present invention, flow setting is reasonable, and at producing, defect rate is low, high production efficiency.
Detailed description of the invention
Fig. 1 is the elastic waistline structural schematic diagram of traditional disposable absorbent article；
Fig. 2 is that the elastic hot-fusible pressure-sensitive adhesive of present pre-ferred embodiments applies the knot in disposable absorbent article elastic waistline
Structure schematic diagram.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to drawings and the specific embodiments, whereby to the present invention how
Applied technology method solves technical problem, and the realization process for reaching technical effect can fully understand and implement.If not
It specializes, the conventional means that technological means employed in embodiment is well known to those skilled in the art, used examination
Agent and product are also available commercial.The various processes and method being not described in detail are routine sides as known in the art
Method, agents useful for same are the common agents being commercially available by commercial sources.
A kind of elasticity hot-fusible pressure-sensitive adhesive, the elasticity hot-fusible pressure-sensitive adhesive are prepared by the component of following weight percent:
Polymer 30-50%, plasticizer 10-30%, Petropols 40-60%, antioxidant 1-2%, polyisobutene 3-5%, above-mentioned group
The sum of mass percent divided is 100%；
The polymer be s-B-S (SBS), styrene-isoprene-phenylethene (SIS) and
One or more mixtures of styrene-butadiene-three kinds of butylene-styrene block copolymer (SBBS).
Preferably, the elastic hot-fusible pressure-sensitive adhesive is prepared by the component of following weight percent: polymer 30-
40%, plasticizer 10-20%, Petropols 45-55%, antioxidant 1-1.8%, polyisobutene 3.5-5%, the matter of said components
Measuring the sum of percentage is 100%；
The polymer be s-B-S (SBS), styrene-isoprene-phenylethene (SIS) and
One or more mixtures of styrene-butadiene-three kinds of butylene-styrene block copolymer (SBBS)；The benzene
Ethylene-butadiene-styrene (SBS) includes the SBS of 6241 model of SBS of Tai Xiang company；Styrene-isoprene-the benzene
Ethylene (SIS) include the SIS 1300 of Ju Sheng company, Tai Xiang company 4411 model of SIS SBS；Butadiene-the butylene-
Styrene block copolymer (SBBS) includes the SBBS of the SBBS N505 model of Asahi Kasei Corporation.
Preferably, the plasticizer is one of naphthenic oil, white oil, phthalate, divinol.
Preferably, the Petropols are C5 Petropols, hydrogenation DCPD Petropols, hydrogenation C5 Petropols or hydrogenation
C9 Petropols.
Preferably, the antioxidant is the antioxidant or Foshan river flowing from Guizhou Province through Hunan into Dongting Lake victory of the model 1010 of Foshan Yuan Sheng Chemical Co., Ltd.
The antioxidant of the model 168 of Chemical Co., Ltd..
Preferably, the polyisobutene is the poly- isobutyl of the model PB950 of the good woods chemistry in Guangzhou Science and Technology Ltd.
One or both of the polyisobutene of the model PB1300 of alkene or Guangzhou good woods chemistry Science and Technology Ltd..
A kind of preparation method of elasticity hot-fusible pressure-sensitive adhesive, which comprises the steps of:
S1: confirmation reaction kettle bottom valve is closed, and is opened steam heating, is started agitating paddle, plasticizer and antioxidant is added；
S2: rising to 140-150 DEG C for the temperature of reaction kettle of S1, stirs after polymer is added to polymer melted；
S3: uniformly putting into tackifying resin into the reaction kettle of S2, has all melted to tackifying resin, and liquid petroleum resin is added
And polyisobutene, sufficiently reacted；
S4: to which after the reaction was completed, the melting charge in reaction kettle is filtered in S3；
S5: melting charge filtered in S4 is successively passed through into cooling system, drying system, is finally packed.
Preferably, it is stirred 10 minutes after polymer being added in the S2, it will be on the tank skin and agitating paddle of reaction kettle with scraper plate
Polymer scrape, continue to stir；After stirring 50min, whether sampling is completely melt, if continuing to stir still with the presence of particle,
And record extension mixing time.
Preferably, reaction kettle is vacuumized after material adds in the S3, keeps the temperature in reaction kettle in 140-
150 DEG C, when vacuum degree is 0.07 or more, material not rise expect when, vacuumize 20-40min.
About preparation process because the technique of common hot melt adhesive require be it is lower, only simple physical mixed, does not have
Reaction process；
In the present embodiment, the preparation process, major emphasis are as follows:
(1) raw material addition sequence: some raw materials will not melt again as added after rubber；
(2) heating temperature, if resin softening point is higher, needs relevant temperature to require, therefore because of part material in raw material
The temperature of reaction kettle of the invention is maintained at one of step crucial in 140-150 DEG C of entire preparation process；If temperature is excessively high,
Since the production time is longer, long-time heating stirring will lead to finished product degradation, and various performances all sharp falls, appearance also can
Color burn；
(3) importance sampled in production process: being after certain raw material is added, and guarantees that such raw material melts completely；Especially
It is that when polymer is added, whipping process need to confirm that polymer melts completely, because new raw material is added each time into reaction
Kettle can all cause temperature in the kettle to decline rapidly, when such as Petropols to be added, need to slow down rate of feeding, avoid reactor temperature
Decline rapidly, in the case where polymer thawing completely unconfirmed, the subsequent polymer that may cause can not melt again, in final finished
It has the feed particles that polymer does not melt to exist, seriously affects end properties.
A kind of elasticity hot-fusible pressure-sensitive adhesive, which is characterized in that the elasticity hot-fusible pressure-sensitive adhesive elasticity of substitution material is applied one
Elastic position in secondary property absorbent article, disposable absorbent article be paper diaper, draw trousers, adult diaper, absorb underpants one
Kind；The elasticity hot-fusible pressure-sensitive adhesive can be used for preparing elastic compound, be applied to disposable absorbent article elastomeric material position, replace
Elastic material spandex assigns each section of disposable product with tensile properties.
Embodiment 1-4:
The proportion according to the form below 1 weighs raw material respectively, carries out preparing product according to the step in embodiment 1-4, specific detailed
It is shown in Table 1:
Table 1: embodiment 1-4 raw material proportioning table
Embodiment 1-4:
Embodiment 1: 32%SIS 1300,18% naphthenic oil, 45% hydrogenation C5 Petropols, 1% antioxidant are taken in proportion
1010, after 4%PB450, first confirm that reaction kettle bottom valve is closed, open steam heating, start agitating paddle, addition accounts for the total matter of naphthenic oil
Temperature of reaction kettle is then risen to 140-150 DEG C by 95% naphthenic oil and antioxidant 1010 of amount, and SIS 1300 is added, to
SIS 1300 is added, and the SIS 1300 on the tank skin and agitating paddle of reaction kettle after ten minutes, is scraped with scraper plate, continued to stir by stirring
It mixes；After stirring 50min, whether sampling is completely melt, if continuing to stir still with the presence of particle, and records extension mixing time,
Until SIS 1300 is completely melt；Then into reaction kettle, slowly uniformly investment hydrogenates C5 Petropols, C5 petroleum tree to be hydrogenated
Rouge has all melted, and the naphthenic oil and PB450 of surplus is added, vacuumizes reaction kettle after all adding, and keeps in reaction kettle
Temperature is at 140-150 DEG C, and when vacuum degree is 0.07 or more, material does not rise again when expecting, vacuumizes 20-40min；After vacuumizing
Melting charge in reaction kettle is filtered, and is successively passed through cooling system, drying system, is packed after the assay was approved.
Embodiment 2: take in proportion 30%SBS6241,20% white oil, 45% hydrogenation C9 Petropols, 1% irgasfos 168,
After 4%PB450, first confirms that reaction kettle bottom valve is closed, open steam heating, start agitating paddle, addition accounts for white oil gross mass
Temperature of reaction kettle is then risen to 140-150 DEG C by 95% white oil and irgasfos 168, and SBS6241 is added, to SBS6241 plus
Complete, the SBS6241 on the tank skin and agitating paddle of reaction kettle after ten minutes, is scraped with scraper plate, is continued to stir by stirring；Stirring
After 50min, whether sampling is completely melt, if continuing to stir still with the presence of particle, and records extension mixing time, until
SBS6241 is completely melt；Then into reaction kettle, slowly uniformly investment hydrogenation C9 Petropols, C9 Petropols to be hydrogenated are whole
It has been melted that, the white oil and PB450 of surplus is added, vacuumizes reaction kettle after all adding, the temperature in reaction kettle is kept to exist
140-150 DEG C, when vacuum degree is 0.07 or more, material does not rise again when expecting, vacuumizes 20-40min；By the reaction kettle after vacuumizing
Interior melting charge is filtered, and is successively passed through cooling system, drying system, is packed after the assay was approved.
Embodiment 3: take in proportion 35%SIS 4411,15% divinol, 45% hydrogenation DCPD Petropols,
After 1% antioxidant 1010,4%PB950+PB1300, first confirms that reaction kettle bottom valve is closed, opens steam heating, start agitating paddle,
95% divinol and antioxidant 1010 for accounting for divinol gross mass is added, then by temperature of reaction kettle
Rise to 140-150 DEG C, SIS 4411 be added, is added to SIS 4411, stirring after ten minutes, with scraper plate by the tank skin of reaction kettle and
SIS 4411 on agitating paddle is scraped, and continues to stir；After stirring 50min, whether sampling is completely melt, if still with the presence of particle,
Then continue to stir, and record extension mixing time, until SIS 4411 is completely melt；Then it is slowly uniformly put into reaction kettle
DCPD Petropols are hydrogenated, DCPD Petropols to be hydrogenated have all melted, and the divinol and PB950 of surplus is added
+ PB1300 vacuumizes reaction kettle after all adding, and keeps the temperature in reaction kettle at 140-150 DEG C, when vacuum degree exists
0.07 or more, material does not rise again when expecting, vacuumizes 20-40min；Melting charge in reaction kettle after vacuumizing is filtered,
Successively pass through cooling system, drying system, is packed after the assay was approved.
Embodiment 4: 40%SBBS N505,10% naphthenic oil, 45% hydrogenation DCPD Petropols, 1% is taken to resist in proportion
After oxygen agent 168,4%PB950, first confirms that reaction kettle bottom valve is closed, open steam heating, start agitating paddle, addition accounts for naphthenic oil
Temperature of reaction kettle is then risen to 140-150 DEG C by 95% naphthenic oil and irgasfos 168 of gross mass, and SBBS N505 is added,
It being added to SBBS N505, stirring after ten minutes, is scraped the SBBS N505 on the tank skin and agitating paddle of reaction kettle with scraper plate, after
Continuous stirring；After stirring 50min, whether sampling is completely melt, if continuing to stir still with the presence of particle, and records extension stirring
Time, until SBBS N505 is completely melt；Then into reaction kettle, slowly uniformly investment hydrogenates DCPD Petropols, to be hydrogenated
DCPD Petropols have all melted, and the naphthenic oil and PB950 of surplus is added, vacuumizes reaction kettle after all adding, and keep
Temperature in reaction kettle is at 140-150 DEG C, and when vacuum degree is 0.07 or more, material does not rise again when expecting, vacuumizes 20-40min；It will
The melting charge in reaction kettle after vacuumizing is filtered, and is successively passed through cooling system, drying system, is wrapped after the assay was approved
Dress.
Comparative example: 24%SIS 1300,14% naphthenic oil, 61% hydrogenation DCPD Petropols, 1% antioxidant are taken in proportion
After 168, first confirms that reaction kettle bottom valve is closed, open steam heating, start agitating paddle, addition accounts for the 95% of naphthenic oil gross mass
Temperature of reaction kettle is then risen to 140-150 DEG C by naphthenic oil and irgasfos 168, and SIS 1300 is added, adds to SIS 1300,
SIS 1300 on the tank skin and agitating paddle of reaction kettle after ten minutes, is scraped with scraper plate, is continued to stir by stirring；Stir 50min
Afterwards, whether sampling is completely melt, if continuing to stir still with the presence of particle, and extension mixing time is recorded, until SIS 1300
It is completely melt；Then into reaction kettle, slowly uniformly investment hydrogenation DCPD Petropols, DCPD Petropols to be hydrogenated are all molten
It is complete, the naphthenic oil of surplus is added, vacuumizes reaction kettle after all adding, keeps the temperature in reaction kettle at 140-150 DEG C,
When vacuum degree is 0.07 or more, material does not rise again when expecting, vacuumizes 20-40min；By the melting charge in the reaction kettle after vacuumizing
It is filtered, successively passes through cooling system, drying system, packed after the assay was approved.
Effect assessment and performance detection
1. viscosity determining procedure
It provides to carry out according to GB/T 2794, uses the DV2TRVT type viscosimeter and No. 27 rotors of Bo Lefei company, the U.S.
To measure viscosity.As a result with centipoise (cps) record.
2. softening point test method
It provides to carry out according to GB/T 15332, uses the automatic softening point test of the SD-0606T of Shanghai Geoscience Instrument Inst.
Instrument tests softening point.As a result with degree Celsius (DEG C) record.
3. peel test force method
According to " test laminate structures preparation " method, by between two substrates coating adhesive it is laminated to prepare test
Object.Peeling force is measured according to GB/T 2790, the difference is that test was carried out with 300mm/ minutes rates, lasts 10 seconds, and
And 6 repetitions of operation.The Run sample on electronic universal tester test equipment.The width of test sample is 2 inches, and length is
At least 4 inches.The Average peel force during removing in 10 seconds is recorded, is as a result recorded with gram force.Preparing laminates at least 24 hours
Later, initial peeling force is measured.It is as follows to test laminate structures preparation: in 160 DEG C of application temperatures, 15 pound per square inches
(PSI) under the speed of service of nip pressure and at least 5m/min, pass through the continuous dip coating between two nonwoven substrates
Elastomeric binder composition prepares test laminate structures.Using 60gsm's (embodiment 1-4) and 70gsm (embodiment 1-4)
It is at least 3 inches that coating weight, which prepares laminate structures and the width of adhesive,.The laminates of sufficient amount are prepared for, so that at least
At least 60 inches of representative laminate structures are collected for testing.
4. lagging test method
The sample strip of preparation is extended into a certain strain (for example, 50% or 100%), then bounces back to its original scale.
Sample is then set to be subjected to second of extension with identical deformation-retraction circulation.It is 300mm/ minutes by crosshead speed set.
Extending does not have the residence time between retraction.The Run sample on electronic universal tester test equipment, is at least repeated 3 times.Note
Permanent set after each circulation of record.
Above-mentioned test item test result is as shown in table 2:
Table 2: test data summary sheet
Note: peeling force > 300gf/inch tears substrate.
As shown above, elastic hot-fusible pressure-sensitive adhesive prepared by the present invention has superior draftability, peel strength, bonding
Property etc. performances, applied to paper diaper, draw the elastic waistline positions of the disposable absorbent articles such as trousers, assign waistline position each section
With good tensile properties, as shown in Figs. 1-2.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (10)
1. it is a kind of elasticity hot-fusible pressure-sensitive adhesive, which is characterized in that it is described elasticity hot-fusible pressure-sensitive adhesive by following weight percent component
It is prepared: polymer 30-50%, plasticizer 10-30%, Petropols 40-60%, antioxidant 1-2%, polyisobutene 3-5%, on
Stating the sum of mass percent of component is 100%；
The polymer is s-B-S, styrene-isoprene-phenylethene and styrene-butadiene-fourth
One or more mixtures of three kinds of alkene-styrene block copolymer.
2. elasticity hot-fusible pressure-sensitive adhesive as described in claim 1, which is characterized in that the elasticity hot-fusible pressure-sensitive adhesive is by following weight
The component of percentage is prepared: polymer 30-40%, plasticizer 10-20%, Petropols 45-55%, antioxidant 1-1.8%,
Polyisobutene 3.5-5%, the sum of mass percent of said components are 100%；
The polymer is s-B-S, styrene-isoprene-phenylethene and styrene-butadiene-fourth
One or more mixtures of three kinds of alkene-styrene block copolymer.
3. elasticity hot-fusible pressure-sensitive adhesive as described in claim 1, which is characterized in that the plasticizer is naphthenic oil, white oil, adjacent benzene
One of diformic ester, divinol.
4. elasticity hot-fusible pressure-sensitive adhesive as described in claim 1, which is characterized in that the Petropols be carbon C5 Petropols,
Hydrogenate DCPD Petropols, hydrogenation C5 Petropols or hydrogenation C9 Petropols.
5. elasticity hot-fusible pressure-sensitive adhesive as described in claim 1, which is characterized in that the antioxidant is that Foshan river flowing from Guizhou Province through Hunan into Dongting Lake victory chemical industry is limited
The antioxidant of the model 168 of the antioxidant or Foshan Yuan Sheng Chemical Co., Ltd. of the model 1010 of company.
6. elasticity hot-fusible pressure-sensitive adhesive as described in claim 1, which is characterized in that the polyisobutene is the good Lin Huaxue in Guangzhou
The model PB1300 of polyisobutene or Guangzhou good woods the chemistry Science and Technology Ltd. of the model PB950 of Science and Technology Ltd.
One or both of polyisobutene.
7. a kind of preparation method of elastic hot-fusible pressure-sensitive adhesive as described in claim 1, which comprises the steps of:
S1: confirmation reaction kettle bottom valve is closed, and is opened steam heating, is started agitating paddle, plasticizer and antioxidant is added；
S2: rising to 140-150 DEG C for the temperature of reaction kettle of S1, stirs after polymer is added to polymer melted；
S3: uniformly putting into tackifying resin into the reaction kettle of S2, has all melted to tackifying resin, and liquid petroleum resin is added and gathers
Isobutene is sufficiently reacted；
S4: to which after the reaction was completed, the melting charge in reaction kettle is filtered in S3；
S5: melting charge filtered in S4 is successively passed through into cooling system, drying system, is finally packed.
8. the preparation method of elasticity hot-fusible pressure-sensitive adhesive as claimed in claim 7, which is characterized in that stirred after polymer is added in S2
15 minutes, the polymer on the tank skin and agitating paddle of reaction kettle is scraped with scraper plate, continues to stir；After stirring 50min, sampling is
It is no to be completely melt, if continuing to stir still with the presence of particle, and record extension mixing time.
9. the preparation method of elasticity hot-fusible pressure-sensitive adhesive as claimed in claim 7, which is characterized in that, will in S3 after material adds
Reaction kettle vacuumizes, and keeps the temperature in reaction kettle at 140-150 DEG C, and when vacuum degree is 0.07 or more, material does not rise again when expecting,
Vacuumize 20-40min.
10. a kind of application of elastic hot-fusible pressure-sensitive adhesive as described in claim 1, which is characterized in that the elasticity hot-fusible pressure-sensitive adhesive replaces
It applies for elastic material at position elastic in disposable absorbent article, disposable absorbent article is paper diaper, draws trousers, adult
Paper diaper, the one kind for absorbing underpants.
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