CN109777324A - A kind of degradable modified polyvinylalcohol adhesive and the preparation method and application thereof - Google Patents
A kind of degradable modified polyvinylalcohol adhesive and the preparation method and application thereof Download PDFInfo
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- CN109777324A CN109777324A CN201910124729.2A CN201910124729A CN109777324A CN 109777324 A CN109777324 A CN 109777324A CN 201910124729 A CN201910124729 A CN 201910124729A CN 109777324 A CN109777324 A CN 109777324A
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- modified polyvinylalcohol
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- 239000004372 Polyvinyl alcohol Substances 0.000 title claims abstract description 79
- 235000019422 polyvinyl alcohol Nutrition 0.000 title claims abstract description 79
- 229920002451 polyvinyl alcohol Polymers 0.000 title claims abstract description 79
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 53
- 239000000853 adhesive Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 239000002390 adhesive tape Substances 0.000 claims abstract description 35
- 239000010902 straw Substances 0.000 claims abstract description 35
- 239000003054 catalyst Substances 0.000 claims abstract description 26
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 25
- 239000008158 vegetable oil Substances 0.000 claims abstract description 25
- 239000001913 cellulose Substances 0.000 claims abstract description 15
- 229920002678 cellulose Polymers 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000000123 paper Substances 0.000 claims description 58
- 241000196324 Embryophyta Species 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 15
- 239000003549 soybean oil Substances 0.000 claims description 11
- 235000012424 soybean oil Nutrition 0.000 claims description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000007731 hot pressing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 239000004006 olive oil Substances 0.000 claims description 4
- 235000008390 olive oil Nutrition 0.000 claims description 4
- 239000005022 packaging material Substances 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 235000005687 corn oil Nutrition 0.000 claims description 3
- 239000002285 corn oil Substances 0.000 claims description 3
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- 239000008159 sesame oil Substances 0.000 claims description 3
- 235000011803 sesame oil Nutrition 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 235000019482 Palm oil Nutrition 0.000 claims description 2
- 235000019486 Sunflower oil Nutrition 0.000 claims description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- JGFBRKRYDCGYKD-UHFFFAOYSA-N dibutyl(oxo)tin Chemical compound CCCC[Sn](=O)CCCC JGFBRKRYDCGYKD-UHFFFAOYSA-N 0.000 claims description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- 239000002655 kraft paper Substances 0.000 claims description 2
- 239000000944 linseed oil Substances 0.000 claims description 2
- 235000021388 linseed oil Nutrition 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000002540 palm oil Substances 0.000 claims description 2
- 239000011087 paperboard Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 239000002600 sunflower oil Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 239000012467 final product Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 2
- 239000012943 hotmelt Substances 0.000 description 19
- 238000004898 kneading Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000008240 homogeneous mixture Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- BIMRNYDJQHZYKY-UHFFFAOYSA-N CCCCCCCCCCCC.[S] Chemical compound CCCCCCCCCCCC.[S] BIMRNYDJQHZYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010907 stover Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 150000001298 alcohols Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229920006167 biodegradable resin Polymers 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- PYBNTRWJKQJDRE-UHFFFAOYSA-L dodecanoate;tin(2+) Chemical compound [Sn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O PYBNTRWJKQJDRE-UHFFFAOYSA-L 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of degradable modified polyvinylalcohol adhesive, it is prepared comprising following raw material: 50-95 parts of PVA, 5-50 parts of vegetable oil, 0.5-5 parts of organotins, 0.01-5 parts of catalyst, the material is as adhesive, preparation applied to adhesive tape, obtained sealing tape is relative to traditional sealing tape, with stronger adhesive strength, modified straw is added, then adhesive strength can be higher, simultaneously, using cellulose paper base as adhesive tape substrate, prepared adhesive tape has totally biodegradable, the characteristics of catabolite no pollution to the environment.
Description
Technical field
The present invention relates to adhesive preparation fields, more particularly to a kind of degradable modified polyvinylalcohol adhesive and its system
Preparation Method and application.
Background technique
As modern industrial and agricultural development and living standards of the people are continuously improved, the adhesive series of one of fine chemicals is fast
Speed development, specific function make it be widely used in national economy every field and public daily lifes.Such as it is interconnecting
Today of net rapid economic development, shopping online, express transportation have become the important component of convenient life.However, mentioning
While for convenience, the adhesive tape on express box but brings problem.Packet including adhesive tape, air bag, polybag etc.
Object is filled, primary raw material is the petroleum based polyalcohols such as polyester, polyvinyl chloride.This substance is embedded in soil, needs century-old ability
Degradation can generate a large amount of pollutants, be detrimental to health if burned.Other than adhesive tape non-degradable itself, glue (gluing
Agent) there is also much to the harm problem of the pollution of environment and human health for itself.This is because the harmful substance in adhesive,
As caused by volatile organic compounds, toxic curing agent, plasticizer, diluent and other auxiliary agents, harmful filler etc.
's.Although adhesive is not really a kind of huge chemical products, but also can not be ignored to the harm of environment.Polyvinyl formal gluing
Agent (being commonly called as " 107 glue ") is detrimental to health due to containing free formaldehyde.Disabled already in developed country, but China due to
Its is cheap, so still there is the comparable market share.
In today that the cry of environmental protection grows to even greater heights, more and more people start to be dedicated to grinding for biodegradable adhesive
System.How so that the adhesive of non-environmental protection type is become environmental-protection type adhesive by modification is imperative work.In numerous former materials
In material, it is that can uniquely be gathered by bacterium as carbon source and the vinyl of using energy source that polyvinyl alcohol (PVA), which is biodegradable resin,
Close object, water and carbon dioxide generated after degradation, there are no pollution to the environment, and transparency, gloss, antistatic property, penetrability,
Oil resistivity, obdurability etc. are better than common polyolefin, while having good water solubility, can be used for making adhesive.But
It is PVA is a kind of polyol, intermolecular force is big, and fusing point is high, and it is not easy to stabilization and is sticked on carton, therefore, improvement
Polyvinyl alcohol (PVA) increases its adhesive strength, has great importance.
Summary of the invention
Inadequate to solve PVA adhesive strength, it is impossible to meet adhesive strength required for degradable adhesive tape, the present invention is provided
A kind of degradable modified polyvinylalcohol adhesive, the degradable modified polyvinylalcohol adhesive can have good viscous
Intensity is connect, applied to the preparation of adhesive tape, relative to traditional sealing tape, have biological can drop obtained sealing tape completely
The characteristics of solution, catabolite no pollution to the environment, and separated using plastic adhesive tape difficulty with carton before solving and influence carton
The problem of rate of recovery.
In order to achieve the above objectives, it is achieved by following technical solution:
A kind of degradable modified polyvinylalcohol adhesive, is prepared comprising following raw material: 50-95 parts of PVA,
5-50 parts of vegetable oil, 0.5-5 parts of organotins, 0.01-5 parts of catalyst.
Preferably, the degradable modified polyvinylalcohol adhesive, is prepared: 50- comprising following raw material
95 parts of PVA, 5-50 parts of vegetable oil, 0.5-1.5 parts of organotins, 0.02-2.5 parts of catalyst.
Preferably, the quality summation of the PVA and vegetable oil is 100 parts.
Preferably, the PVA includes: PVA1788, PVA1799, PVA2499, PVA2099, one of PVA2488 or
Several combinations.
Preferably, the vegetable oil includes: soybean oil, sesame oil, corn oil, peanut oil, olive oil, sunflower oil, castor
The combination of one or more of sesame oil, linseed oil, palm oil.
Preferably, the organotin includes dibutyl tin dilaurate, stannous octoate, Dibutyltin oxide, two (dodecane sulphur
Base) combination of one or more of dibutyl tin.
Preferably, the catalyst includes: basic catalyst, acidic catalyst.
Preferably, the basic catalyst includes: sodium hydroxide solution, potassium hydroxide solution, in sodium bicarbonate solution
One or more, the acidic catalyst include: the mixing of sulfonic acid, the concentrated sulfuric acid or both.
The preparation method of degradable modified polyvinylalcohol adhesive as described above includes following preparation step:
(1) parts by weight substance is weighed in proportion；
(2) PVA is mixed with vegetable oil, then organotin is added, catalyst is added dropwise, is warming up to 105-120 DEG C of reaction 1-
1.5h to get.
A kind of adhesive tape containing degradable modified polyvinylalcohol adhesive, is prepared: such as comprising following raw material
Upper described degradable 80-95 parts of modified polyvinylalcohol adhesive, 5-20 parts of plant fiber, cellulose paper base.
Preferably, the degradable modified polyvinylalcohol adhesive with 100 parts in total of plant fiber.
Preferably, the plant fiber is prepared by straw.
Preferably, the plant fiber includes that following raw material is prepared: 0.5-2.0 parts of soybean oils, 0.5-1.8
Part Ca (OH)2, 90-110 parts of straws.
Preferably, the preparation method of the plant fiber includes following preparation step:
(1) soybean oil, Ca (OH) are proportionally weighed2, straw；
(2) by soybean oil, Ca (OH)2It is added into straw, is uniformly mixed, is placed in 2-3h in 90-120 DEG C of baking oven,
Kneading machine temperature is set as 120-160 DEG C, screw speed is set as 8-12rpm, and modified 10-15min is to get fine to the plant
Dimension, i.e. hot melt straw.
Preferably, the cellulose paper base includes: brown paper, release paper, paperboard, greaseproof, moistureproof paper, label paper, mark
Sign paper, paper jam, sack kraft paper, art paper, printing, newsprint, offset paper, papers for books and periodicals, India paper, water marked paper, printing, duplicating
One or more of paper, writing paper, other office papers, carbon paper, tracing, drawing paper, cash register paper, ink-jet paper, facsimile transmission paper
Combination.
The preparation method of adhesive tape as described above containing degradable modified polyvinylalcohol adhesive includes following preparation side
Method:
(1) plant fiber, degradable modified polyvinylalcohol adhesive are proportionally weighed, is uniformly mixed；
(2) mixture that step (1) is prepared is with 1.2~4g/m2Amount be uniformly applied on cellulose paper base, set
It is dried in 50-60 DEG C of ventilation drying tunnel, winding is cut into the adhesive tape of one fixed width.
The application of degradable modified polyvinylalcohol adhesive as described above, the degradable modified polyvinylalcohol glue
Adhesive of the stick as adhesive tape.
Preferably, packaging material can be bonded in glue surface side or use when in use by spraying a small amount of water mist when in use
90-120 DEG C of heat folder hot pressing adhesive tape can be bonded.
Preferably, it is followed by packaging material in glue surface in use, spraying a small amount of water mist, and presss from both sides hot pressing glue with 90-120 DEG C of heat
Band is bonded.
Preferably, the tape applications are in express delivery packaging industry.
The utility model has the advantages that
Degradable modified polyvinylalcohol adhesive of the present invention, by polyvinyl alcohol and vegetable oil blending and modifying,
Organotin as stabilizer, acid-base solution as catalyst under conditions of, active force will be introduced on polyvinyl alcohol backbones or side group
Weaker vegetable oil unit weakens PVA intramolecular and intermolecular force (hydrogen bond), weakens its polarity, improves viscosity and heat
Plasticity, the degradable modified polyvinylalcohol adhesive being prepared are the degradable modified polyvinylalcohol adhesive of hot melt,
Viscosity is strong, thermoplasticity is good.Organotin of the present invention functions as stabilizer, due to degradable modified polyvinylalcohol glue
Reaction in stick preparation process carries out under the high temperature conditions, is added without organotin as stabilizer, molecular structure can be sent out
It is raw to change, it cannot get target molecule.
The present invention mixes modified PVA with stalk plant fiber heating, and due to containing cellulose in stalk, straw are added
There is better adhesive effect since the two polarity is close after stalk, what is be prepared is hot melt straw.
Adhesive tape of the present invention is substrate using biodegradable straw and polyvinyl alcohol, and by it with fiber
Plain paper base is that carrier is made into sealing tape, and modified PVA and stalk are all degradable, for traditional sealing tape, is used
Performance is not affected and is promoted, and prepared sealing compound can be realized totally biodegradable, can be with carton
Recycling, reduces the harm to environment, and its raw material is easy to get, and is conducive to the utilization rate for improving natural resources.
Specific embodiment
The present invention will be further specifically described in detail with reference to specific embodiments, but embodiments of the present invention are not
It is limited to this, for not specifically specified technological parameter, can refer to routine techniques progress.
Embodiment 1
A kind of preparation method of the adhesive tape containing degradable modified polyvinylalcohol adhesive, comprising the following steps:
(1) preparation of modified PVA
The PVA of 50g is mixed with 50g vegetable oil, then the organotin of 0.5g is added, 1ml catalyst solution, heating is added dropwise
To 105 DEG C of reaction 1h, the degradable modified polyvinylalcohol adhesive of hot melt is obtained；
(2) preparation of hot melt straw
By 0.8g vegetable oil, 0.8g Ca (OH)2It is added into 100g straw, is uniformly mixed, is placed in 90 DEG C of baking ovens
Three area's temperature of kneading machine is set as 140 DEG C by 2h, and screw speed is set as 8rpm, is modified 10min to get hot melt straw is arrived；
(3) preparation of sealing tape
The made hot melt straw of 5g step (2) is added in 95g step (1) made modified PVA by a, is uniformly mixed；
B is by homogeneous mixture obtained in step (3) a with 2g/m2Amount be uniformly applied on cellulose paper base, be placed in 60 DEG C of 2.4m
It is dried in continous way ventilation drying tunnel, winding is cut into the sealing tape of 60mm wide.
The PVA are as follows: PVA1788；The vegetable oil are as follows: soybean oil, olive oil；The organotin are as follows: tin dilaurate two
Fourth tin；The catalyst are as follows: KOH solution；The straw are as follows: wheat stalk；The cellulose paper base are as follows: brown paper.
Through detecting, it is 150N/g that prepared adhesive tape, which measures it and removes specific strength,.
Embodiment 2
A kind of preparation method of the adhesive tape containing degradable modified polyvinylalcohol adhesive, comprising the following steps:
(1) preparation of modified PVA
The PVA of 60g is mixed with 40g vegetable oil, then the organotin tin of 0.6g is added, 1.2ml catalyst solution is added dropwise,
108 DEG C of reaction 1h are warming up to, the degradable modified polyvinylalcohol adhesive of hot melt is obtained.
(2) preparation of hot melt straw
By 0.7g vegetable oil, 0.6g Ca (OH)2It is added into 100g straw, is uniformly mixed, is placed in 100 DEG C of baking ovens
Three area's temperature of kneading machine is set as 95 DEG C by middle 2h, and screw speed is set as 9rpm, is modified 12min to get hot melt plant straw are arrived
Stalk；
(3) preparation of sealing tape
The made hot melt straw of 10g step (2) is added in 90g step (1) made modified PVA by a, and mixing is equal
It is even；B is by homogeneous mixture obtained in step (3) a with 3g/m2Amount be uniformly applied on cellulose paper base, be placed in the 65 of 3m
It is dried in DEG C ventilation drying tunnel, winding is cut into the sealing tape of 50mm wide.Through detecting, prepared adhesive tape measures it and removes specific strength
For 158N/g.
The PVA are as follows: PVA2488；The vegetable oil are as follows: peanut oil, soybean oil；The organotin are as follows: dibutyl oxidation
Tin；The catalyst are as follows: NaOH solution；The straw are as follows: corn stover；The cellulose paper base are as follows: papers for books and periodicals.
Embodiment 3
A kind of preparation method of the adhesive tape containing degradable modified polyvinylalcohol adhesive, comprising the following steps:
(1) preparation of modified PVA
The PVA of 90g is mixed with 10g vegetable oil, then the organotin of 1g is added, 1.8ml catalyst solution, heating is added dropwise
To 115 DEG C of reaction 1.2h；
(2) preparation of hot melt straw
By 0.7g vegetable oil, 0.8g Ca (OH)2It is added into 100g straw, is uniformly mixed, is placed in 85 DEG C of baking ovens
Three area's temperature of kneading machine is set as 140 DEG C by 3h, and screw speed is set as 10rpm, is modified 10min to get hot melt plant straw are arrived
Stalk；
(3) preparation of sealing tape:
The made hot melt straw of 15g step (2) is added in 85g step (1) made modified PVA by a, and mixing is equal
It is even；B is by homogeneous mixture obtained in step (3) a with 3g/m2Amount be uniformly applied on cellulose paper base, be placed in the 55 of 4m
It is dried in DEG C ventilation drying tunnel, winding is cut into the sealing tape of 55mm wide.Through detecting, prepared adhesive tape measures it and removes specific strength
For 170N/g.
The PVA are as follows: PVA1788；The vegetable oil are as follows: corn oil, soybean oil；The organotin are as follows: stannous octoate；Institute
State catalyst are as follows: KOH solution；The straw are as follows: wheat stalk；The cellulose paper base are as follows: release paper paper.
Embodiment 4
A kind of preparation method of the adhesive tape containing degradable modified polyvinylalcohol adhesive, comprising the following steps:
(1) preparation of modified PVA
The PVA of 95g is mixed with 5g vegetable oil, then the organotin of 1.5g is added, 1.5ml catalyst solution is added dropwise, is risen
Temperature is to 120 DEG C of reaction 1h；
(2) preparation of hot melt straw
By 0.8g vegetable oil, 0.9gCa (OH)2It is added into 100g straw, is uniformly mixed, is placed in 115 DEG C of baking ovens
Three area's temperature of kneading machine is set as 135 DEG C by 2h, and screw speed is set as 9rpm, is modified 10min to get hot melt straw is arrived；
(3) preparation of sealing tape
The made hot melt straw of 20g step (2) is added in 80g step (1) made modified PVA by a, and mixing is equal
It is even；B is by homogeneous mixture obtained in step (3) a with 4g/m2Amount be uniformly applied on cellulose paper base, be placed in 4.8m's
It is dried in 65 DEG C of ventilation drying tunnels, winding is cut into the sealing tape of 70mm wide.Through detecting, it is strong that prepared adhesive tape measures its overburden ratio
Spend 163N/g.
The PVA are as follows: PVA1788；The vegetable oil are as follows: castor oil, olive oil；The organotin are as follows: two (dodecane sulphur
Base) dibutyl tin；The catalyst are as follows: sulfonic acid solutions；The straw are as follows: corn stover；The cellulose paper base are as follows: anti-
Damp paper.
By test, modified polyvinylalcohol does not add the removing for the adhesive tape that hot melt straw is prepared in the present invention
Specific strength is 120N/g, and the peel strength of adhesive tape can further improve after modified polyvinylalcohol addition hot melt straw
10-15%.
Degradable modified polyvinylalcohol adhesive of the present invention, soil in the natural environment carry out compost degradation,
It 6-12 months can be with 100% degradation.
The above described is only a preferred embodiment of the present invention, limitation in any form not is done to the present invention, according to
According to technical spirit any simple modification, same variation and modification made to the above embodiment of the invention, this hair is still fallen within
In the range of bright technical solution.
Claims (10)
1. a kind of degradable modified polyvinylalcohol adhesive, which is characterized in that be prepared comprising following raw material:
50-95 parts of PVA, 5-50 parts of vegetable oil, 0.5-5 parts of organotins, 0.01-5 parts of catalyst.
2. degradable modified polyvinylalcohol adhesive according to claim 1, which is characterized in that the degradable modification
Polyvinyl alcohol adhesive is prepared comprising following raw material: 50-95 parts of PVA, 5-50 parts of vegetable oil, 0.5-1.5 parts have
Machine tin, 0.02-2.5 part catalyst；
Preferably, the quality summation of the PVA and vegetable oil is 100 parts；
Preferably, the PVA includes: PVA1788, PVA1799, PVA2499, PVA2099, one or more of PVA2488
Combination；
Preferably, the vegetable oil include: soybean oil, sesame oil, corn oil, peanut oil, olive oil, sunflower oil, castor oil,
The combination of one or more of linseed oil, palm oil；
Preferably, the organotin includes dibutyl tin dilaurate, stannous octoate, Dibutyltin oxide, two (dodecylthios)
The combination of one or more of dibutyl tin；
Preferably, the catalyst includes: basic catalyst, acidic catalyst；
Preferably, the basic catalyst includes: one or more of sodium hydroxide, potassium hydroxide, sodium bicarbonate, the acid
Property catalyst includes: the mixing of sulfonic acid, the concentrated sulfuric acid or both.
3. the preparation method of any degradable modified polyvinylalcohol adhesive of claims 1 or 2, which is characterized in that institute
Stating preparation method includes following preparation step:
(1) parts by weight substance is weighed in proportion；
(2) PVA is mixed with vegetable oil, then organotin is added, catalyst is added dropwise, is warming up to 105-120 DEG C of reaction 1-1.5h,
To obtain the final product.
4. a kind of adhesive tape containing degradable modified polyvinylalcohol adhesive, which is characterized in that include following raw material system
It is standby to form: any described degradable 80-95 part of modified polyvinylalcohol adhesive of claim 1-3,5-20 parts of plant fiber, fibre
Tie up plain paper base.
5. adhesive tape according to claim 4, which is characterized in that the degradable modified polyvinylalcohol adhesive and plant are fine
100 parts in total of dimension；Preferably, the plant fiber is prepared by straw；Preferably, the plant fiber includes as follows
Raw material is prepared: 0.5-2.0 portions of soybean oils, 0.5-1.8 parts of Ca (OH)2, 90-110 parts of straws.
6. adhesive tape according to claim 5, which is characterized in that the preparation method of the plant fiber includes following preparation
Step:
(1) soybean oil, Ca (OH) are proportionally weighed2, straw；
(2) by soybean oil, Ca (OH)2It is added into straw, is uniformly mixed, is placed in 2-3h in 90-120 DEG C of baking oven, will be kneaded
Machine temperature is set as 120-160 DEG C, and screw speed is set as 8-12rpm, is modified 10-15min to get the plant fiber is arrived.
7. adhesive tape according to claim 4, which is characterized in that the cellulose paper base include: brown paper, release paper, paperboard,
Greaseproof, moistureproof paper, label paper, label paper, paper jam, sack kraft paper, art paper, printing, newsprint, offset paper, papers for books and periodicals,
India paper, water marked paper, printing, copy paper, writing paper, other office papers, carbon paper, tracing, drawing paper, cash register paper, color spray
The combination of one or more of paper, facsimile transmission paper.
8. the preparation method of any adhesive tape containing degradable modified polyvinylalcohol adhesive of claim 4-7, feature
It is, comprising following preparation method:
(1) plant fiber, degradable modified polyvinylalcohol adhesive are proportionally weighed, is uniformly mixed；
(2) mixture that step (1) is prepared is with 1.2~4g/m2Amount be uniformly applied on cellulose paper base, be placed in 50-
It is dried in 60 DEG C of ventilation drying tunnels, winding is cut into the adhesive tape of one fixed width.
9. the application of degradable modified polyvinylalcohol adhesive according to claim 1 to 3, it is characterised in that institute
State adhesive of the degradable modified polyvinylalcohol adhesive as adhesive tape.
10. the application method of any adhesive tape of claim 4-9, which is characterized in that spray a small amount of water mist when in use and exist
Glue surface side can be bonded packaging material or can be bonded with 90-120 DEG C of heat folder hot pressing adhesive tape when in use；It is preferred that
, it is followed by packaging material in glue surface in use, spraying a small amount of water mist, and be bonded with 90-120 DEG C of heat folder hot pressing adhesive tape；
Preferably, the tape applications are in express delivery packaging industry.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124729.2A CN109777324A (en) | 2019-02-15 | 2019-02-15 | A kind of degradable modified polyvinylalcohol adhesive and the preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124729.2A CN109777324A (en) | 2019-02-15 | 2019-02-15 | A kind of degradable modified polyvinylalcohol adhesive and the preparation method and application thereof |
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| CN109777324A true CN109777324A (en) | 2019-05-21 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1176174A1 (en) * | 2000-07-25 | 2002-01-30 | CS Environmental Technology Limited | A degradable material, container or packaging material made of same, and method of forming same |
| CN108559409A (en) * | 2017-12-30 | 2018-09-21 | 汪逸凡 | A kind of preparation method of water-resistant type paper tube adhesive |
| CN109233630A (en) * | 2017-04-27 | 2019-01-18 | 四川美登家具有限公司 | A kind of furniture special plant paint and preparation method thereof |
-
2019
- 2019-02-15 CN CN201910124729.2A patent/CN109777324A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1176174A1 (en) * | 2000-07-25 | 2002-01-30 | CS Environmental Technology Limited | A degradable material, container or packaging material made of same, and method of forming same |
| CN109233630A (en) * | 2017-04-27 | 2019-01-18 | 四川美登家具有限公司 | A kind of furniture special plant paint and preparation method thereof |
| CN108559409A (en) * | 2017-12-30 | 2018-09-21 | 汪逸凡 | A kind of preparation method of water-resistant type paper tube adhesive |
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Application publication date: 20190521 |