CN105038652A - Nano-bentonite-containing packaging hot melt adhesive with long service life - Google Patents
Nano-bentonite-containing packaging hot melt adhesive with long service life Download PDFInfo
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- CN105038652A CN105038652A CN201510462415.5A CN201510462415A CN105038652A CN 105038652 A CN105038652 A CN 105038652A CN 201510462415 A CN201510462415 A CN 201510462415A CN 105038652 A CN105038652 A CN 105038652A
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Abstract
The invention discloses a nano-bentonite-containing packaging hot melt adhesive with long service life. The hot melt adhesive is prepared from the following raw materials in parts by weight: 40-50 parts of EVA, 10-20 parts of natural rubber, 20-30 parts of modified tackifying resin, 1-2 parts of dodecyl trimethyl ammonium chloride, 0.1-0.2 part of urotropine, 1-1.5 parts of an antioxygen 168, 0.2-0.3 part of magnesium oxide, 1-2 parts of calcium stearate, 3-6 parts of nano calcium carbonate, 20-25 parts of nano bentonite, 3-5 parts of zinc oxide, 1-2 parts of calcium stearate and 1-2 parts of triethylene tetramine. Compound nano powder is added, so that the dispersing is full, and the obtained hot melt adhesive is compact in sizing material and durable.
Description
Technical field
The invention belongs to binding agent field, particularly relate to a kind of hot fusible adhesive for package containing nano-bentonite of long service life.
Background technology
EVA hot-melt adhesive is formulated by EVA resin, tackifier, softening agent, antioxidant, filler etc.In society now, EVA hot-melt adhesive applied range, consumption are maximum.It has excellent adhesiveproperties, nearly all has hot sticky relay to various material; Excellent electric property; And its melt viscosity is low, applying glue is convenient; With the feature such as the consistency of other Synergist S-421 95s is good.EVA hot-melt adhesive has been widely used in shaping, many fields such as automobile and building materials of the bookbinding of books, bonding, ceramic etc. the reparation of the packaging, plastics etc. of food, mounting, clothes and shoes and hats.Because EVA resin is a kind of thermoplastic resin, high and low temperature resistance is limited, softening temperature is low, and main auxiliary material tackifier are all the polymkeric substance of molecular weight mostly, just play reduction melt viscosity, improve the effect of wetting ability and initial cohesiveness, itself is high-low temperature resistant not, causes the shortcoming of EVA hot-melt adhesive not high-low temperature resistant; Simultaneously also there is lower, the not resistance to fatty oil of adhesiveproperties, easily produce skinning and be not suitable for the shortcomings such as big area coating is bonding in EVA hot-melt adhesive.
At present, along with developing rapidly of PET industry, waste PET quantity also increases thereupon, thus brings serious pollution to environment.How to recycle waste PET, become one of focus of research at present.PET reclaims and mainly comprises physiochemical mutagens and chemical recovery two kinds of methods, physiochemical mutagens method cost is lower, but after physiochemical mutagens, the Mr(relative molecular mass of material) and limiting viscosity all reduce, the PET product be made up of physiochemical mutagens material can not be reused this way and recycle; Chemical recovery makes PET generate micromolecular compound by chemical reaction, and the performance of this method products therefrom is more excellent.Chemical recovery technique can be divided into hydrolysis, ammonia solution and alcoholysis etc. (wherein alcoholysis process is chemical recovery technique relatively more conventional at present), as Pereira etc. utilizes the polyester of degraded to make tensio-active agent.
Summary of the invention
The object of this invention is to provide a kind of hot fusible adhesive for package containing nano-bentonite of long service life.
The present invention adopts following technical scheme to achieve these goals:
A kind of hot fusible adhesive for package containing nano-bentonite of long service life, it is characterized in that, it is obtained by the raw material of following weight parts: EVA40-50, natural rubber 10-20, modified tacky resin 20-30, Dodecyl trimethyl ammonium chloride 1-2, urotropine 0.1-0.2, irgasfos 168 1-1.5, magnesium oxide 0.2-0.3, calcium stearate 1-2, nano-calcium carbonate 3-6, nano-bentonite 20-25, zinc oxide 3-5, calcium stearate 1-2, triethylene tetramine 1-2;
Described modified tacky resin is obtained by the raw material of following weight parts:
Waste PET fragment 40-50, zinc acetate 3-4, thiorubber 10-15, chloroprene rubber 5-7, alkyl phenolic resin 20-30, styrene resin 5-10, trimethyloctadecyl ammonium chloride 1-2, carbide slag 10-20, gac 2-4;
The preparation method of described modified tacky resin is:
(1) by after carbide slag, gac mixing, ultraviolet irradiation 8-12h, then in concentration be 5-8% hydrochloric acid soln in soak 10-12h, solid-liquid separation is carried out to soak solution, dry, obtain the composite powder of modification for subsequent use;
(2) washing, dried waste PET fragment are joined in reactor in proportion, then add zinc acetate; Slowly be warming up to zinc acetate under nitrogen protection when dissolving completely, warming while stirring to 240-245 DEG C, insulation reaction 3-4h; Be cooled to 200-210 DEG C, then add thiorubber, chloroprene rubber, alkyl phenolic resin, styrene resin, stirring reaction 10-20min; Add the composite powder of modification and all the other raw materials again, after stirring 1-2h, discharging cooling stripping and slicing.
The hot fusible adhesive for package containing nano-bentonite of described a kind of long service life, is characterized in that: preparation method comprises the following steps:
(1) nano-calcium carbonate, Dodecyl trimethyl ammonium chloride add appropriate amount of deionized water mixing, fully disperse under 80-150 rev/min, dry after obtained compound size, then mix with natural rubber, and twin screw extruder is extruded, and cools intercalation modifying rubber mass is for subsequent use;
(2) kneader is preheated to wall temperature 160-180 DEG C, then adds EVA, nano-bentonite, zinc oxide, calcium stearate by weight, mediates 10-20min; After add intercalation modifying rubber mass and surplus stock by weight, at 180-190 DEG C, mediate 10-15min, take out cool and get final product.
Beneficial effect of the present invention:
(1) through intercalation modifying, can improve the mechanical property of rubber, heat-drawn wire improves, and water-absorbent is low, use it to prepare consistency that hot melt adhesive can increase each raw material of hot melt adhesive, improves viscosity and water-repellancy.Present invention adds composite nano-powder, fully, gained hot melt adhesive sizing material is fine and close, durable in dispersion.
(2) modified tacky resin batching rationally, the composite powder of modification wherein contains carbide slag, turn waste into wealth, can carbide slag sterilization be given by uv irradiation again, the hole of carbide slag, gac can be increased simultaneously, strengthen the avidity with resin, ageing-resistant, resistance to air loss is good, not only significantly improves the properties of hot melt adhesive with the composite powder of modification as the new raw material of hot melt adhesive, and has made new contribution for environmental protection.
(3) waste PET fragment by degraded after, then with all the other tackifying resins and the good melting of the composite powder of modification, obtained tackifying resin viscosity is high, and hardness strength performance satisfies the demands; Composite powder can be better dispersed in PET and remaining resin by modified, can increase the tensile strength of sizing material, hardness, nontoxic pollution-free; The present invention successfully by pet waste for the preparation of in hot melt adhesive, obtained hot melt adhesive can meet the sizing agent demand in each field, environmental protection, economy, useful environment.
embodiment,
A kind of hot fusible adhesive for package containing nano-bentonite of long service life, it is obtained by the raw material of following weight (kg): EVA40, natural rubber 20, modified tacky resin 30, Dodecyl trimethyl ammonium chloride 1, urotropine 0.2, irgasfos 168 1.5, magnesium oxide 0.3, calcium stearate 1, nano-calcium carbonate 6, nano-bentonite 20, zinc oxide 3, calcium stearate 1, triethylene tetramine 1;
Described modified tacky resin is obtained by the raw material of following weight (kg):
Waste PET fragment 40, zinc acetate 3, thiorubber 10, chloroprene rubber 5, alkyl phenolic resin 20, styrene resin 10, trimethyloctadecyl ammonium chloride 1, carbide slag 10, gac 4;
The preparation method of described modified tacky resin is:
(1) by after carbide slag, gac mixing, ultraviolet irradiation 8h, then in concentration be 8% hydrochloric acid soln in soak 10h, solid-liquid separation is carried out to soak solution, dry, obtain the composite powder of modification for subsequent use;
Ultraviolet light source in uv irradiation adopts power 1000W, the high voltage mercury lamp fluorescent tube of spectral range 365-450nm, peak value 365nm;
(2) washing, dried waste PET fragment are joined in reactor in proportion, then add zinc acetate; Slowly be warming up to zinc acetate under nitrogen protection when dissolving completely, warming while stirring to 245 DEG C, insulation reaction 3h; Be cooled to 210 DEG C, then add thiorubber, chloroprene rubber, alkyl phenolic resin, styrene resin, stirring reaction 20min; Add the composite powder of modification and all the other raw materials again, after stirring 2h, discharging cooling stripping and slicing.
The hot fusible adhesive for package containing nano-bentonite of described a kind of long service life, preparation method comprises the following steps:
(1) nano-calcium carbonate, Dodecyl trimethyl ammonium chloride add appropriate amount of deionized water mixing, fully disperse under 80 revs/min, dry after obtained compound size, then mix with natural rubber, and twin screw extruder is extruded, and cools intercalation modifying rubber mass is for subsequent use;
(2) kneader is preheated to wall temperature 160 DEG C, then adds EVA, nano-bentonite, zinc oxide, calcium stearate by weight, mediates 10min; After add intercalation modifying rubber mass and surplus stock by weight, at 185 DEG C, mediate 10min, take out cool and get final product.
The apparent viscosity of the hot melt adhesive of the present embodiment is 4800MPa.s, stripping strength 56N/2.5cm, and initial bonding strength reaches No. 5 steel balls, open hour 42s, and within 24 hours, thermally-stabilised proterties is stablized.
Claims (2)
1. the hot fusible adhesive for package containing nano-bentonite of a long service life, it is characterized in that, it is obtained by the raw material of following weight parts: EVA40-50, natural rubber 10-20, modified tacky resin 20-30, Dodecyl trimethyl ammonium chloride 1-2, urotropine 0.1-0.2, irgasfos 168 1-1.5, magnesium oxide 0.2-0.3, calcium stearate 1-2, nano-calcium carbonate 3-6, nano-bentonite 20-25, zinc oxide 3-5, calcium stearate 1-2, triethylene tetramine 1-2;
Described modified tacky resin is obtained by the raw material of following weight parts:
Waste PET fragment 40-50, zinc acetate 3-4, thiorubber 10-15, chloroprene rubber 5-7, alkyl phenolic resin 20-30, styrene resin 5-10, trimethyloctadecyl ammonium chloride 1-2, carbide slag 10-20, gac 2-4;
The preparation method of described modified tacky resin is:
(1) by after carbide slag, gac mixing, ultraviolet irradiation 8-12h, then in concentration be 5-8% hydrochloric acid soln in soak 10-12h, solid-liquid separation is carried out to soak solution, dry, obtain the composite powder of modification for subsequent use;
(2) washing, dried waste PET fragment are joined in reactor in proportion, then add zinc acetate; Slowly be warming up to zinc acetate under nitrogen protection when dissolving completely, warming while stirring to 240-245 DEG C, insulation reaction 3-4h; Be cooled to 200-210 DEG C, then add thiorubber, chloroprene rubber, alkyl phenolic resin, styrene resin, stirring reaction 10-20min; Add the composite powder of modification and all the other raw materials again, after stirring 1-2h, discharging cooling stripping and slicing.
2. the hot fusible adhesive for package containing nano-bentonite of a kind of long service life according to claim 1, is characterized in that: preparation method comprises the following steps:
(1) nano-calcium carbonate, Dodecyl trimethyl ammonium chloride add appropriate amount of deionized water mixing, fully disperse under 80-150 rev/min, dry after obtained compound size, then mix with natural rubber, and twin screw extruder is extruded, and cools intercalation modifying rubber mass is for subsequent use;
(2) kneader is preheated to wall temperature 160-180 DEG C, then adds EVA, nano-bentonite, zinc oxide, calcium stearate by weight, mediates 10-20min; After add intercalation modifying rubber mass and surplus stock by weight, at 180-190 DEG C, mediate 10-15min, take out cool and get final product.
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| CN201510462415.5A CN105038652A (en) | 2015-07-31 | 2015-07-31 | Nano-bentonite-containing packaging hot melt adhesive with long service life |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142907A (en) * | 2019-05-17 | 2019-08-20 | 广州市勇源冰雪运动用品有限公司 | A kind of hockey helmet goods of furniture for display rather than for use manufacture craft |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552819A (en) * | 1982-10-12 | 1985-11-12 | Sumitomo Electric Industries, Ltd. | Adhesive and heat recoverable article having a layer of the adhesive |
| CN1222928A (en) * | 1996-06-21 | 1999-07-14 | 阿托芬德利公司 | Hydrophilic hot melt adhesive |
| JP2002173654A (en) * | 2000-12-05 | 2002-06-21 | Taoka Chem Co Ltd | Hot-melt adhesive composition |
| CN103214984A (en) * | 2013-04-17 | 2013-07-24 | 安徽金门工贸有限公司 | Holt melt adhesive containing nanometer iron ore tailing powder |
| CN103571387A (en) * | 2013-10-24 | 2014-02-12 | 芜湖众力部件有限公司 | Special hot melt adhesive for automotive upholstery |
| CN104086956A (en) * | 2014-07-08 | 2014-10-08 | 彭朕财 | PET(PETG) (poly(ethylene terephthalate)(polyethylene terephthalate glycol)) tackifying and toughening agent |
-
2015
- 2015-07-31 CN CN201510462415.5A patent/CN105038652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552819A (en) * | 1982-10-12 | 1985-11-12 | Sumitomo Electric Industries, Ltd. | Adhesive and heat recoverable article having a layer of the adhesive |
| CN1222928A (en) * | 1996-06-21 | 1999-07-14 | 阿托芬德利公司 | Hydrophilic hot melt adhesive |
| JP2002173654A (en) * | 2000-12-05 | 2002-06-21 | Taoka Chem Co Ltd | Hot-melt adhesive composition |
| CN103214984A (en) * | 2013-04-17 | 2013-07-24 | 安徽金门工贸有限公司 | Holt melt adhesive containing nanometer iron ore tailing powder |
| CN103571387A (en) * | 2013-10-24 | 2014-02-12 | 芜湖众力部件有限公司 | Special hot melt adhesive for automotive upholstery |
| CN104086956A (en) * | 2014-07-08 | 2014-10-08 | 彭朕财 | PET(PETG) (poly(ethylene terephthalate)(polyethylene terephthalate glycol)) tackifying and toughening agent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142907A (en) * | 2019-05-17 | 2019-08-20 | 广州市勇源冰雪运动用品有限公司 | A kind of hockey helmet goods of furniture for display rather than for use manufacture craft |
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Application publication date: 20151111 |