CN108084915A - A kind of PVA adhesive tapes and preparation method thereof - Google Patents
A kind of PVA adhesive tapes and preparation method thereof Download PDFInfo
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- CN108084915A CN108084915A CN201711422245.3A CN201711422245A CN108084915A CN 108084915 A CN108084915 A CN 108084915A CN 201711422245 A CN201711422245 A CN 201711422245A CN 108084915 A CN108084915 A CN 108084915A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/02—Starch; Degradation products thereof, e.g. dextrin
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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
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/04—Starch derivatives
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
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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
- C09J2403/00—Presence of starch
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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
- C09J2429/00—Presence of polyvinyl alcohol
- C09J2429/006—Presence of polyvinyl alcohol in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention, which discloses a kind of PVA adhesive tapes applied to express delivery packaging and preparation method thereof, includes two parts of substrate layer and adhesive layer：Wherein substrate layer is made of polyvinyl alcohol (PVA), plasticizer, reinforcing agent, crosslinking agent, lubricant and antioxidant etc., adhesive layer is made of deionized water, converted starch, 40% hydrogen peroxide (H2O2), 40% sodium hydrate aqueous solution, borax decahydrate and aerosil etc., compared with prior art, the present invention has the advantages that：Raw material is environment-friendly degradable material used by substrate layer and adhesive layer of the present invention, which has many advantages, such as environmental-friendly and biodegradable compared to traditional adhesive tape.
Description
Technical field
The present invention relates to packaging material field more particularly to a kind of PVA adhesive tapes and its preparation side applied to express delivery packaging
Method.
Background technology
Spread all over the epoch in streets and lanes in current network, net purchase trend is prolonged, and the express delivery thus brought is even more
It grows rapidly.According to statistics：From 2012 to 2016, Chinese express delivery amount soared to 31,200,000,000 from 5,600,000,000, phase
When in each Chinese 24 express deliveries will be received and dispatched within 1 year, be even more within 2017 head direct for 40,000,000,000 target and go.
By taking the express delivery amount of 2016 as an example, if it is 1 meter each to wrap up the length of tape used, then China is fast within 2016
It passs the adhesive tape that industry uses and is up to 31,200,000,000 meters, can be enclosed around terrestrial equator 784.
At present, most of adhesive band base layer is all made of plastic materials such as BOPP, PVC, PET and PE, these materials are
Non-degradable material, this also means that need a century that could be completely degraded in the Nature, " the white dirt of bringing on a disaster property
Dye ".Meanwhile the glue of traditional most acrylics used of adhesive tape adhesive layer, the glue production need to use in the process
A large amount of solvents, be easy to cause environmental pollution, are detrimental to health.
The content of the invention
It is an object of the invention to develop a kind of PVA adhesive tapes applied to express delivery packaging, Classical adhesive tape non-degradable is solved,
The shortcomings of causing environment pollution, can be extensively using fields such as express delivery packagings.
The present invention is achieved by the following technical solutions：
A kind of PVA adhesive tapes, including substrate layer and adhesive layer, the adhesive layer is coated on the single side surface of substrate layer, institute
Stating substrate layer includes the following component counted in parts by weight：
The adhesive layer includes the following component counted in parts by weight：
PVA (polyvinyl alcohol) be uniquely can by bacterium as carbon source and the polyvinyl of using energy source, in bacterium and
Under the action of enzyme, 46 days degradable 75%, belong to a kind of Biodegradable polymer material.Meanwhile the adhesive tape that the present invention uses
Using PVA materials as substrate layer main material, using converted starch as adhesive layer main material, two kinds of materials be it is water-soluble and
Biodegradable material can be dissolved directly by the Nature, have advantages of environment protection.
Preferably, the alcoholysis degree of the PVA resins is 87~89, and average degree of polymerization is 2400~2500, and weight is equal
Molecular weight is 118000~124000.
Preferably, the plasticizer is included in epoxidized soybean oil, sorbitan fatty acid ester and glycerine
It is at least one.
Preferably, the reinforcing agent is inorganic crystal whisker material.
Preferably, the crosslinking agent for toluene di-isocyanate(TDI) and Triallyl isocyanurate according to (1~
5):The mixture of 1 weight ratio proportioning.
Preferably, the lubricant is at least one of stearic acid, PE waxes and EBS.
Preferably, the antioxidant is 1010 and 1098 according to (1~5):The mixing of 1 weight ratio proportioning
Object.
Preferably, the converted starch is cassava modified starch, and water content is no more than 5%, and viscosity is no more than
200BU。
A kind of preparation method of PVA adhesive tapes as the aforementioned, includes the following steps：
Substrate layer and adhesive are prepared respectively；
By the adhesive using coater in the single side surface of substrate layer, form adhesive layer, using curling and
It cuts out, obtains the PVA adhesive tapes；
Wherein, the preparation method of the substrate layer is：
After PVA resins are dried, with plasticizer, reinforcing agent, crosslinking agent, lubricant and antioxidant mixing, base material is obtained
Layer mixture；
By the substrate layer mixture by double screw extruder melting extrusion, granulation, obtain substrate layer and be modified pellet；
The substrate layer is modified pellet and squeezes out blown film by single screw rod inflation film manufacturing machine, obtains the substrate layer；
The preparation method of the adhesive is：
Deionized water is divided into two parts, converted starch is dissolved in first part of deionized water, is become at 60~65 DEG C
Property starch size；
40% hydrogen peroxide and 40% sodium hydrate aqueous solution are sequentially added in the modified starch size, at 60~65 DEG C
Under carry out reaction 0.5h after, add in borax decahydrate, aerosil and remaining deionized water, after stirring 1h, obtain the glue
Stick.
Preferably, the running parameter of the double screw extruder is：One area's temperature is 150~190 DEG C, two area's temperature
It spends for 180~210 DEG C, three area's temperature are 180~220 DEG C, and four area's temperature are 180~220 DEG C, and five area's temperature are 180~210
DEG C, die head temperature is 170~200 DEG C, and rate of feeding is 10~30r/min, and screw speed is 20~50r/min；
Single screw rod inflation film manufacturing machine running parameter is：150~190 DEG C of feeding section, 190~210 DEG C of stage casing, leading portion 200~220
DEG C, head temperature：180~200 DEG C, screw speed is 40~60r/min；
The weight of first part of deionized water is the 60~75% of deionized water total weight.
Compared with prior art, the present invention has following advantageous effect：
For the present invention from substrate layer to adhesive layer, use is all environment-friendly degradable raw material, is developed a kind of applied to express delivery
The PVA adhesive tapes of packaging solve Classical adhesive tape non-degradable, the shortcomings of causing environment pollution, can be packed extensively using express delivery etc.
Field.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the PVA adhesive tape schematic diagrames for being applied to express delivery packaging in the present invention；
Fig. 2 is the PVA adhesive band base layer preparation process route maps in the present invention；
Fig. 3 is the PVA adhesive tape adhesive layer preparation process route maps in the present invention；
Fig. 4 is the PVA adhesive tape preparation process route maps in the present invention；
In figure：1st, substrate layer；2nd, adhesive layer.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
The BP-24 in Taiwan Changchun may be selected in PVA resins in the present invention used in substrate layer；
Plasticizer in the present invention used in substrate layer is epoxidized soybean oil, sorbitan fatty acid ester and glycerine are (sweet
Oil), model is respectively B-22, S-85 and GY, is all from Guangzhou Wang Nilai Chemical Co., Ltd.s；
Reinforcing agent in the present invention used in substrate layer is silicon carbide whisker, calcium sulfate crystal whiskers and aluminium borate whisker, and model is divided
Not Wei SiC-80,887, NP-M02, be respectively selected from one promise new high-tech material development corporation, Ltd. of Qinhuangdao, Jinan Xin Sen sources chemical industry has
Limit company and upper seapeak Zhu trade Co., Ltd；
Crosslinking agent in the present invention used in substrate layer is toluene di-isocyanate(TDI) (TDI) and Triallyl isocyanurate
(TAIC), model is respectively T-100 and FARIDATAICS, is respectively selected from the happy Industrial Co., Ltd.s of Shanghai Jin Jin and the Hunan people close
Chemical Co., Ltd.；
Converted starch model in the present invention used in adhesive layer is Best-301, and the limited public affairs of Sanming City Blockbuster starch may be selected
Department；
Other materials used is commercial product in the present invention.
Embodiment 1
The present embodiment is related to a kind of PVA adhesive tapes applied to express delivery packaging and preparation method thereof, including substrate layer and gluing
Two part of layer, specifically comprise the following steps：
First, substrate layer carries out dispensing according to following weight proportion：
The crosslinking agent is toluene di-isocyanate(TDI) (TDI) and Triallyl isocyanurate (TAIC) is according to weight ratio
2：1 composition；
The antioxidant is for 1010 and 1098 according to weight ratio 2：1 composition.
2nd, adhesive layer carries out dispensing according to following weight proportion：
3rd, the preparation of substrate layer：
As shown in Fig. 2, PVA resins are added in baking oven, after being dried for 24 hours under 100 DEG C of temperature conditionss, certain part by weight is weighed
Number adds in high-speed mixer, is separately added into epoxidized soybean oil, silicon carbide whisker, crosslinking agent, stearic acid, antioxidant mixing
Even, discharging obtains PVA adhesive band base layer mixtures；
By PVA adhesive band base layers mixture by double screw extruder melting extrusion, it is granulated, obtains PVA adhesive band base layers
Modified pellet；
PVA adhesive band bases layer is modified pellet and squeezes out blown film through single screw rod inflation film manufacturing machine, obtains PVA adhesive band base layers.
The running parameter of the double screw extruder is：One area's temperature is 160 DEG C, and two area's temperature are 180 DEG C, three area's temperature
For 180 DEG C, four area's temperature are 180 DEG C, and five area's temperature are 190 DEG C, and die head temperature is 180 DEG C, rate of feeding 10r/min, spiral shell
Bar rotating speed is 20r/min；
Single screw rod inflation film manufacturing machine running parameter is：150 DEG C of feeding section, 190 DEG C of stage casing, 200 DEG C of leading portion, head temperature：180
DEG C, screw speed 40r/min.
4th, the preparation of adhesive layer：
As shown in figure 3, following raw material for standby are weighed respectively：250 parts of deionized water, 30 parts of converted starch, 40% hydrogen peroxide
(H2O2) 0.5 part, 40% 5 parts of sodium hydrate aqueous solution, 1.5 parts of borax decahydrate, 0.75 part of aerosil；
It weighs 150 parts of deionized waters to add in the controllable temperature stainless steel cauldron of 20L, is warming up to 60 DEG C, is separately added into
30 parts of the converted starch of parts by weight is stated, is stirred evenly, modified starch size is made；
Take 40% hydrogen peroxide (H of above-mentioned parts by weight2O2) 0.5 part, 40% 5 parts of sodium hydrate aqueous solution, which successively adds in, to be become
Property starch size, stir while adding 0.5h, control temperature of reaction kettle is at 60 DEG C；
Finally take 5 parts of above-mentioned parts by weight borax decahydrate and 0.75 part of aerosil, 100 parts of use deionized water dissolving
It adds in afterwards in reaction kettle, is sufficiently stirred 1h, converted starch glue, i.e. PVA adhesive tapes adhesive layer is made.
5th, the preparation of PVA adhesive tapes：
Adhesive layer converted starch glue is used into coater on substrate layer as shown in Figure 4, curling is cut, and is obtained
A kind of PVA adhesive tapes applied to express delivery packaging in the lower surface of substrate layer 1 as shown in Figure 1, coat one layer of adhesive layer 2.
Embodiment 2
The present embodiment is related to a kind of PVA adhesive tapes applied to express delivery packaging and preparation method thereof, including substrate layer and gluing
Two part of layer, specifically comprise the following steps：
First, substrate layer carries out dispensing according to following weight proportion：
The crosslinking agent is toluene di-isocyanate(TDI) (TDI) and Triallyl isocyanurate (TAIC) is according to weight ratio
3：1 composition；
The antioxidant is for 1010 and 1098 according to weight ratio 3：1 composition.
2nd, adhesive layer carries out dispensing according to following weight proportion：
3rd, the preparation of substrate layer：
PVA resins are added in baking oven, after being dried for 24 hours under 100 DEG C of temperature conditionss, constant weight number is weighed and adds at a high speed
Mixer is separately added into sorbitan fatty acid ester, calcium sulfate crystal whiskers, crosslinking agent, PE waxes, antioxidant and is uniformly mixed, goes out
Material, obtains PVA adhesive band base layer mixtures；
By PVA adhesive band base layers mixture by double screw extruder melting extrusion, it is granulated, obtains PVA adhesive band base layers
Modified pellet；
PVA adhesive band bases layer is modified pellet and squeezes out blown film through single screw rod inflation film manufacturing machine, obtains PVA adhesive band base layers.
The running parameter of the double screw extruder is：One area's temperature is 170 DEG C, and two area's temperature are 190 DEG C, three area's temperature
For 190 DEG C, four area's temperature are 190 DEG C, and five area's temperature are 200 DEG C, and die head temperature is 190 DEG C, rate of feeding 15r/min, spiral shell
Bar rotating speed is 25r/min；
Single screw rod inflation film manufacturing machine running parameter is：170 DEG C of feeding section, 200 DEG C of stage casing, 210 DEG C of leading portion, head temperature：190
DEG C, screw speed 45r/min.
4th, the preparation of adhesive layer：
Following raw material for standby are weighed respectively：300 parts of deionized water, 40 parts of converted starch, 40% hydrogen peroxide (H2O2) 1 part,
40% 7 parts of sodium hydrate aqueous solution, 2 parts of borax decahydrate, 1.25 parts of aerosil；
It weighs 200 parts of deionized waters to add in the controllable temperature stainless steel cauldron of 20L, is warming up to 60 DEG C, is separately added into
40 parts of the converted starch of parts by weight is stated, is stirred evenly, modified starch size is made；
Take 40% hydrogen peroxide (H of above-mentioned parts by weight2O2) 1 part, 40% 7 parts of sodium hydrate aqueous solution successively adds in denaturation
Starch size stirs while adding 0.5h, and control temperature of reaction kettle is at 60 DEG C；
Finally take 2 parts of above-mentioned parts by weight borax decahydrate and 1.25 parts of aerosil, 100 parts of use deionized water dissolving
It adds in afterwards in reaction kettle, is sufficiently stirred 1h, converted starch glue, i.e. PVA adhesive tapes adhesive layer is made.
5th, the preparation of PVA adhesive tapes：
By adhesive layer converted starch glue using coater on substrate layer, curling is cut, and is obtained one kind and is applied to
The PVA adhesive tapes of express delivery packaging are as shown in Figure 1.
Embodiment 3
The present embodiment is related to a kind of PVA adhesive tapes applied to express delivery packaging and preparation method thereof, including substrate layer and gluing
Two part of layer, specifically comprise the following steps：
First, substrate layer carries out dispensing according to following weight proportion：
The crosslinking agent is toluene di-isocyanate(TDI) (TDI) and Triallyl isocyanurate (TAIC) is according to weight ratio
3.5：1 composition；
The antioxidant is for 1010 and 1098 according to weight ratio 4：1 composition.
2nd, adhesive layer carries out dispensing according to following weight proportion：
3rd, the preparation of substrate layer：
PVA resins are added in baking oven, after being dried for 24 hours under 100 DEG C of temperature conditionss, constant weight number is weighed and adds at a high speed
Mixer is separately added into glycerine (glycerine), aluminium borate whisker, crosslinking agent, EBS, antioxidant and is uniformly mixed, and discharging obtains
PVA adhesive band base layer mixtures；
By PVA adhesive band base layers mixture by double screw extruder melting extrusion, it is granulated, obtains PVA adhesive band base layers
Modified pellet；
PVA adhesive band bases layer is modified pellet and squeezes out blown film through single screw rod inflation film manufacturing machine, obtains PVA adhesive band base layers.
The running parameter of the double screw extruder is：One area's temperature is 180 DEG C, and two area's temperature are 200 DEG C, three area's temperature
For 210 DEG C, four area's temperature are 210 DEG C, and five area's temperature are 200 DEG C, and die head temperature is 190 DEG C, rate of feeding 20r/min, spiral shell
Bar rotating speed is 30r/min；
Single screw rod inflation film manufacturing machine running parameter is：180 DEG C of feeding section, 200 DEG C of stage casing, 210 DEG C of leading portion, head temperature：190
DEG C, screw speed 50r/min.
4th, the preparation of adhesive layer：
Following raw material for standby are weighed respectively：350 parts of deionized water, 50 parts of converted starch, 40% hydrogen peroxide (H2O2) 1.5 parts,
40% 8 parts of sodium hydrate aqueous solution, 3 parts of borax decahydrate, 1.5 parts of aerosil；
It weighs 250 parts of deionized waters to add in the controllable temperature stainless steel cauldron of 20L, is warming up to 60 DEG C, is separately added into
50 parts of the converted starch of parts by weight is stated, is stirred evenly, modified starch size is made；
Take 40% hydrogen peroxide (H of above-mentioned parts by weight2O2) 1.5 parts, 40% 8 parts of sodium hydrate aqueous solution, which successively adds in, to be become
Property starch size, stir while adding 0.5h, control temperature of reaction kettle is at 60 DEG C；
Finally take 13 parts of above-mentioned parts by weight borax decahydrate and 1.5 parts of aerosil, 100 parts of use deionized water dissolving
It adds in afterwards in reaction kettle, is sufficiently stirred 1h, converted starch glue, i.e. PVA adhesive tapes adhesive layer is made.
5th, the preparation of PVA adhesive tapes：
By adhesive layer converted starch glue using coater on substrate layer, curling is cut, and is obtained one kind and is applied to
The PVA adhesive tapes of express delivery packaging are as shown in Figure 1.
Embodiment 4
The present embodiment is related to a kind of PVA adhesive tapes applied to express delivery packaging and preparation method thereof, including substrate layer and gluing
Two part of layer, specifically comprise the following steps：
First, substrate layer carries out dispensing according to following weight proportion：
The crosslinking agent is toluene di-isocyanate(TDI) (TDI) and Triallyl isocyanurate (TAIC) is according to weight ratio
4：1 composition；
The antioxidant is for 1010 and 1098 according to weight ratio 5：1 composition.
2nd, adhesive layer carries out dispensing according to following weight proportion：
3rd, the preparation of substrate layer：
PVA resins are added in baking oven, after being dried for 24 hours under 100 DEG C of temperature conditionss, constant weight number is weighed and adds at a high speed
Mixer is separately added into epoxidized soybean oil, silicon carbide whisker, crosslinking agent, stearic acid, antioxidant and is uniformly mixed, and discharging obtains
PVA adhesive band base layer mixtures；
By PVA adhesive band base layers mixture by double screw extruder melting extrusion, it is granulated, obtains PVA adhesive band base layers
Modified pellet；
PVA adhesive band bases layer is modified pellet and squeezes out blown film through single screw rod inflation film manufacturing machine, obtains PVA adhesive band base layers.
The running parameter of the double screw extruder is：One area's temperature is 190 DEG C, and two area's temperature are 210 DEG C, three area's temperature
For 220 DEG C, four area's temperature are 220 DEG C, and five area's temperature are 210 DEG C, and die head temperature is 200 DEG C, rate of feeding 30r/min, spiral shell
Bar rotating speed is 50r/min；
Single screw rod inflation film manufacturing machine running parameter is：190 DEG C of feeding section, 210 DEG C of stage casing, 220 DEG C of leading portion, head temperature：200
DEG C, screw speed 60r/min.
4th, the preparation of adhesive layer：
Following raw material for standby are weighed respectively：400 parts of deionized water, 60 parts of converted starch, 40% hydrogen peroxide (H2O2) 2 parts,
40% 10 parts of sodium hydrate aqueous solution, 4 parts of borax decahydrate, 2 parts of aerosil；
It weighs 300 parts of deionized waters to add in the controllable temperature stainless steel cauldron of 20L, is warming up to 65 DEG C, is separately added into
60 parts of the converted starch of parts by weight is stated, is stirred evenly, modified starch size is made；
Take 40% hydrogen peroxide (H of above-mentioned parts by weight2O2) 2 parts, 40% 10 parts of sodium hydrate aqueous solution successively adds in denaturation
Starch size stirs while adding 0.5h, and control temperature of reaction kettle is at 65 DEG C；
Above-mentioned 4 parts of parts by weight borax decahydrate is finally taken to add with after 2 parts of aerosil, 100 parts of use deionized water dissolving
Enter in reaction kettle, be sufficiently stirred 1h, converted starch glue, i.e. PVA adhesive tapes adhesive layer is made.
5th, the preparation of PVA adhesive tapes：
By adhesive layer converted starch glue using coater on substrate layer, curling is cut, and is obtained one kind and is applied to
The PVA adhesive tapes of express delivery packaging are as shown in Figure 1.
Comparative example 1
As different from Example 1, in comparative example 1, substrate layer material replaces PVA resins, other conditions with BOPP resins
It is constant.
Comparative example 2
As different from Example 1, in comparative example 1, substrate layer material replaces PVA resins with polyvinyl chloride resin, and other conditions are not
Become.
Comparative example 3
As different from Example 1, in comparative example 2, substrate layer material replaces PVA resins with PE resins, and other conditions are not
Become.
Comparative example 4
As different from Example 1, in comparative example 1, gluing layer material replaces converted starch with acrylics material,
His condition is constant.
Performance test
Embodiment 1-4 and comparative example 1-4 are tested for the property respectively, the result is shown in tables 1
1 performance measurement result of table
* 0 grade-invisible microorganism growth；(visible microorganism grows to area coverage to 1 grade-microorganism insignificant growth<
10%)；2 grades-microorganism slightly grows (microorganism grows area coverage 10~30%)；The growth of 3 grades-microorganism moderate is (micro-
Biological growth area coverage 30~60%)；4 grades -- microorganism raised growth (microorganism grows area coverage 60~100%).Grade
Number is higher, illustrates that biodegradability is better.
By 1 result of table as it can be seen that Examples 1 to 4 and comparative example 1~4, the soil burying 40d of Examples 1 to 4 are weightless
Rate/%, 10d microorganism growth series is substantially better than comparative example 1~4, illustrates from data above：Using PVA as substrate layer master
Material is wanted, while innovative introduction uses converted starch glue as adhesive layer.Can prepare a kind of biodegradable and
The PVA adhesive tapes for being applied to express delivery packaging that environment absorbs, a kind of PVA adhesive tapes applied to express delivery packaging prepared by the present invention, no
By the modified starch material that the PVA materials or adhesive layer that are substrate layer use use, two kinds of materials are water solubility and can be complete
Biodegradation material can be dissolved directly by the Nature, have advantages of environment protection.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (10)
1. a kind of PVA adhesive tapes, which is characterized in that including substrate layer and adhesive layer, the adhesive layer is coated on the unilateral side of substrate layer
Surface, the substrate layer include the following component counted in parts by weight：
The adhesive layer includes the following component counted in parts by weight：
2. PVA adhesive tapes as described in claim 1, which is characterized in that the alcoholysis degree of the PVA resins is 87~89, average poly-
Right is 2400~2500, and weight average molecular weight is 118000~124000.
3. PVA adhesive tapes as described in claim 1, which is characterized in that the plasticizer includes epoxidized soybean oil, anhydrous sorbitol
At least one of aliphatic ester and glycerine.
4. PVA adhesive tapes as described in claim 1, which is characterized in that the reinforcing agent is inorganic crystal whisker material.
5. PVA adhesive tapes as described in claim 1, which is characterized in that the crosslinking agent is toluene di-isocyanate(TDI) and three allyls
Base isocyanuric acid ester is according to (1~5):The mixture of 1 weight ratio proportioning.
6. PVA adhesive tapes as described in claim 1, which is characterized in that the lubricant be stearic acid, PE waxes and EBS in extremely
Few one kind.
7. PVA adhesive tapes as described in claim 1, which is characterized in that the antioxidant is for 1010 and 1098 according to (1~5):
The mixture of 1 weight ratio proportioning.
8. PVA adhesive tapes as described in claim 1, which is characterized in that the converted starch is cassava modified starch, and water content is not
More than 5%, viscosity is no more than 200BU.
9. the preparation method of a kind of PVA adhesive tapes as described in any one in claim 1~8, which is characterized in that including as follows
Step：
Substrate layer and adhesive are prepared respectively；
By the adhesive using coater in the single side surface of substrate layer, adhesive layer is formed, using crimping and cut out,
Obtain the PVA adhesive tapes；
Wherein, the preparation method of the substrate layer is：
After PVA resins are dried, with plasticizer, reinforcing agent, crosslinking agent, lubricant and antioxidant mixing, obtain substrate layer and mix
Close material；
By the substrate layer mixture by double screw extruder melting extrusion, granulation, obtain substrate layer and be modified pellet；
The substrate layer is modified pellet and squeezes out blown film by single screw rod inflation film manufacturing machine, obtains the substrate layer；
The preparation method of the adhesive is：
Deionized water is divided into two parts, converted starch is dissolved in first part of deionized water, denaturation is obtained at 60~65 DEG C and is formed sediment
Slurry material；
40% hydrogen peroxide and 40% sodium hydrate aqueous solution are sequentially added in the modified starch size, at 60~65 DEG C into
After row reaction 0.5h, borax decahydrate, aerosil and remaining deionized water are added in, after stirring 1h, obtains the adhesive.
10. the preparation method of PVA adhesive tapes as described in claim 9, which is characterized in that the work of the double screw extruder
Parameter is：One area's temperature is 150~190 DEG C, and two area's temperature are 180~210 DEG C, and three area's temperature are 180~220 DEG C, four area's temperature
It spends for 180~220 DEG C, five area's temperature are 180~210 DEG C, and die head temperature is 170~200 DEG C, and rate of feeding is 10~30r/
Min, screw speed are 20~50r/min；
Single screw rod inflation film manufacturing machine running parameter is：150~190 DEG C of feeding section, 190~210 DEG C of stage casing, 200~220 DEG C of leading portion, machine
Head temperature：180~200 DEG C, screw speed is 40~60r/min；
The weight of first part of deionized water is the 60~75% of deionized water total weight.
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| CN109266238A (en) * | 2018-08-31 | 2019-01-25 | 曲靖宏程工贸有限公司 | A kind of degradable environmental protection package adhesive tape and its production method |
| CN109796895A (en) * | 2018-12-28 | 2019-05-24 | 北京印刷学院 | Degradable adhesive tape and preparation method thereof |
| CN113060361A (en) * | 2021-03-22 | 2021-07-02 | 山东森工新材料科技有限公司 | Water-activated self-adhesive packaging box and water-soluble film and hydrosol liquid used for same |
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| EP2518121A1 (en) * | 2011-04-29 | 2012-10-31 | Nitto Europe | Water degradable adhesive tape |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266238A (en) * | 2018-08-31 | 2019-01-25 | 曲靖宏程工贸有限公司 | A kind of degradable environmental protection package adhesive tape and its production method |
| CN109796895A (en) * | 2018-12-28 | 2019-05-24 | 北京印刷学院 | Degradable adhesive tape and preparation method thereof |
| CN109796895B (en) * | 2018-12-28 | 2021-10-15 | 北京印刷学院 | Degradable adhesive tape and preparation method thereof |
| CN113060361A (en) * | 2021-03-22 | 2021-07-02 | 山东森工新材料科技有限公司 | Water-activated self-adhesive packaging box and water-soluble film and hydrosol liquid used for same |
| CN113060361B (en) * | 2021-03-22 | 2023-06-20 | 深圳森工新材料科技有限公司 | Water-activated self-adhesive packaging box, water-soluble film thereof and hydrosol liquid |
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