CN106398593A - Adhesive for food desiccant package and preparation method of adhesive - Google Patents
Adhesive for food desiccant package and preparation method of adhesive Download PDFInfo
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- CN106398593A CN106398593A CN201510462234.2A CN201510462234A CN106398593A CN 106398593 A CN106398593 A CN 106398593A CN 201510462234 A CN201510462234 A CN 201510462234A CN 106398593 A CN106398593 A CN 106398593A
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- polyolefin
- softening point
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- paraffin
- silane
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Abstract
The invention specifically relates to an adhesive for a food desiccant package and a preparation method of the adhesive. Raw materials of the adhesive comprise a certain ratio of paraffin, PE wax, silane-modified random polyolefin, random polyolefin rich in propylene, a C5 hydrogenated petroleum resin, and a partially-disproportionated hydrogenated tackifying resin. The preparation method comprises: step I, raising the temperature of a stirred tank to 110 DEG C, adding paraffin and PE wax according to a ratio, and performing stirring till the materials are fully melt; step II, adding silane-modified random polyolefin and polyolefin rich in propylene when the temperature of the stirred tank is raised to 140 DEG C; step III, opening a vacuum valve to make the vacuum degree be -0.1 MPa to 0.5 MPa, performing stirring till the materials are totally melt, and performing thermal insulation for 30 min; step IV, closing the vacuum valve, adding the C5 hydrogenated petroleum resin and the partially-disproportionated hydrogenated tackifying resin after venting, and performing vacuum pumping till the materials are totally melt; and step V, closing heating, reducing the temperature to 110 DEG C, and performing discharging.
Description
Technical field
The invention belongs to field of adhesive technology, specifically refer to a kind of food anti-blushing agent packaging adhesive and preparation method thereof.
Background technology
Develop rapidly with economic, the continuous progress of society, the living standard of people also constantly improves, requirement to quality of life is lifted therewith, particularly in this block of food, it is related to the directly healthy of people, more pay attention in terms of safety and the environmental protection of food, thus be accordingly used in the wrapping PUR of food anti-blushing agent and developed.
Glue currently used for food anti-blushing agent has EVA, EAA series, also has other series such as pressure sensitive adhesive, EVA, EAA advantage of lower cost, but acetic acid group meeting decomposed, carries tart flavour, affect food quality, also inconspicuous to the bond effect of PET film.Pressure sensitive adhesive soft texture, temperature sensitive, easily affected by high temperature and lead to glue intensity to decline in transportation, be easily caused packaging bag and destroy, so that food quality is impaired.
Content of the invention
It is an object of the invention to overcoming above-mentioned deficiency present in prior art, and provide a kind of bond effect good, colourless, tasteless, nontoxic it is ensured that food anti-blushing agent packaging adhesive of food safety and preparation method thereof.
A kind of food anti-blushing agent packaging adhesive, its raw material includes following component by weight percentage：
Paraffin
5-10%；
PE wax
5-8%；
Silane-modified atactic polyolefin
35-45%；
Rich in propylene random polyolefin
8-12%；
C5 hydrogenated petroleum resin
12-18%；
Partial disproportionation is hydrogenated with tackifying resin
15-25%；
Described silane-modified atactic polyolefin softening point is 91 ± 4 DEG C, and at 190 DEG C, melt viscosity is 3000 ± 1000mpa.s, and tearing strength/extension at break is 4.9/320 (N/mm/%)；
Described rich in propylene random polyolefin softening point be 84 ± 4 DEG C, at 190 DEG C melt viscosity be 8000 ± 2000mpa.s, tearing strength/extension at break be 1.5/340 (N/mm/%).
Preferably, described paraffin softening point is 60 ± 5 DEG C, density about 0.9g/cm；Described PE wax softening point is 105 ± 5 DEG C, density about 0.95g/cm.
Preferably, described C5 hydrogenated petroleum resin softening point is 115 ± 5 DEG C, acid number ＜ 2mgKOH/g.
Preferably, described partial disproportionation hydrogenation tackifying resin softening point is 115 ± 5 DEG C, acid number ＜ 2mgKOH/g.
The preparation method of food anti-blushing agent packaging adhesive is it is characterised in that comprise the following steps that：
The first step：Stirred tank is warming up to 110 DEG C, is proportionally added into paraffin with PE wax, stir to melting completely；
Second step：Question response kettle is warming up to when 140 DEG C and adds silane-modified polyolefin and be rich in propylene polyolefin；
3rd step：Open vacuum valve, make vacuum be -0.1 ~ 0.5MPa, stir to melting completely, be incubated 10-30min；
4th step：Close vacuum valve, add C5 hydrogenated petroleum resin and disproportionation hydrogenation tackifying resin after emptying, be evacuated to melting completely；
5th step：Close heating, treat that temperature is down to 110 DEG C, discharging.
The present invention compared with prior art, has advantages below and effect：1st, polyolefin is adopted to be material of main part, stable performance, C5 hydrogenation resin is non-aging, and bond effect is good, and color is beautiful, contributes to moistureproof drying effect；2nd, adopt polyolefin system, make glue be in colourless, tasteless, nontoxic shape it is ensured that food safety；3rd, it is low softening point polyolefin using silane-modified atactic polyolefin with rich in propylene polyolefin, can be in applying glue under low temperature process, it is to avoid anti-blushing agent bag film destroys；4th, use silane-modified polyolefin, make molecule be in network structure, there is to membrane material good bonding.
Specific embodiment
The present invention is further described by the following embodiment.
Embodiment 1.
Preparation method：The first step：Stirred tank is warming up to 110 DEG C, is proportionally added into paraffin with PE wax, stir to melting completely；Second step：Question response kettle is warming up to when 140 DEG C and adds silane-modified polyolefin and be rich in propylene polyolefin；3rd step：Open vacuum valve, make vacuum be -0.1 ~ 0.5MPa, stir to melting completely, be incubated 10-30min；4th step：Close vacuum valve, add C5 hydrogenated petroleum resin and disproportionation hydrogenation tackifying resin after emptying, be evacuated to melting completely；5th step：Close heating, treat that temperature is down to 110 DEG C, discharging.
Embodiment 2.
Preparation method：The first step：Stirred tank is warming up to 110 DEG C, is proportionally added into paraffin with PE wax, stir to melting completely；Second step：Question response kettle is warming up to when 140 DEG C and adds silane-modified polyolefin and be rich in propylene polyolefin；3rd step：Open vacuum valve, make vacuum be -0.1 ~ 0.5MPa, stir to melting completely, be incubated 10-30min；4th step：Close vacuum valve, add C5 hydrogenated petroleum resin and disproportionation hydrogenation tackifying resin after emptying, be evacuated to melting completely；5th step：Close heating, treat that temperature is down to 110 DEG C, discharging.
Embodiment 3.
Preparation method：The first step：Stirred tank is warming up to 110 DEG C, is proportionally added into paraffin with PE wax, stir to melting completely；Second step：Question response kettle is warming up to when 140 DEG C and adds silane-modified polyolefin and be rich in propylene polyolefin；3rd step：Open vacuum valve, make vacuum be -0.1 ~ 0.5MPa, stir to melting completely, be incubated 10-30min；4th step：Close vacuum valve, add C5 hydrogenated petroleum resin and disproportionation hydrogenation tackifying resin after emptying, be evacuated to melting completely；5th step：Close heating, treat that temperature is down to 110 DEG C, discharging.
Particular product performance parameters：
Viscosity（180℃）：1800mpa.s；
Softening point：84℃；
Tensile strength：3MPa；
Elongation at break：200%；
Mixture of ice and water：Not embrittlement；
3 hours at 170 DEG C：Non yellowing.
Claims (5)
1. a kind of food anti-blushing agent packaging adhesive is it is characterised in that its raw material includes following component by weight percentage：
Paraffin
5-10%；
PE wax
5-8%；
Silane-modified atactic polyolefin
35-45%；
Rich in propylene random polyolefin
8-12%；
C5 hydrogenated petroleum resin
12-18%；
Partial disproportionation is hydrogenated with tackifying resin
15-25%；
Described silane-modified atactic polyolefin softening point is 91 ± 4 DEG C, and at 190 DEG C, melt viscosity is 3000 ± 1000mpa.s；
Described rich in propylene random polyolefin softening point be 84 ± 4 DEG C, at 190 DEG C melt viscosity be 8000 ± 2000mpa.s.
2. food anti-blushing agent packaging adhesive according to claim 1 it is characterised in that：Described paraffin softening point is 60 ± 5 DEG C, density about 0.9g/cm；Described PE wax softening point is 105 ± 5 DEG C, density about 0.95g/cm.
3. food anti-blushing agent packaging adhesive according to claim 1 it is characterised in that：Described C5 hydrogenated petroleum resin softening point is 115 ± 5 DEG C, acid number ＜ 2mgKOH/g.
4. food anti-blushing agent packaging adhesive according to claim 1 it is characterised in that：Described partial disproportionation hydrogenation tackifying resin softening point is 115 ± 5 DEG C, acid number ＜ 2mgKOH/g.
5. a kind of preparation method of food anti-blushing agent packaging adhesive according to claim 1 is it is characterised in that comprise the following steps that：
The first step：Stirred tank is warming up to 110 DEG C, is proportionally added into paraffin with PE wax, stir to melting completely；
Second step：Question response kettle is warming up to when 140 DEG C and adds silane-modified polyolefin and be rich in propylene polyolefin；
3rd step：Open vacuum valve, make vacuum be -0.1 ~ 0.5MPa, stir to melting completely, be incubated 10-30min；
4th step：Close vacuum valve, add C5 hydrogenated petroleum resin and disproportionation hydrogenation tackifying resin after emptying, be evacuated to melting completely；
5th step：Close heating, treat that temperature is down to 110 DEG C, discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510462234.2A CN106398593B (en) | 2015-07-31 | 2015-07-31 | Food anti-blushing agent packaging adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510462234.2A CN106398593B (en) | 2015-07-31 | 2015-07-31 | Food anti-blushing agent packaging adhesive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106398593A true CN106398593A (en) | 2017-02-15 |
| CN106398593B CN106398593B (en) | 2018-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510462234.2A Active CN106398593B (en) | 2015-07-31 | 2015-07-31 | Food anti-blushing agent packaging adhesive and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429932A (en) * | 2021-07-08 | 2021-09-24 | 浙江英赛德数码科技有限公司 | Adhesive, adhesive coating method and foam cover with adhesive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100063173A1 (en) * | 2008-09-05 | 2010-03-11 | Italo Corzani | Hot melt adhesive composition |
| CN102618211A (en) * | 2012-04-10 | 2012-08-01 | 浙江固特热熔胶有限公司 | Hot melt adhesive used for automotive interiors, and preparation method of hot melt adhesive |
| CN102618190A (en) * | 2012-04-10 | 2012-08-01 | 浙江固特热熔胶有限公司 | Pollution-free efficient insect sticker for vegetables and orchards and preparation method thereof |
-
2015
- 2015-07-31 CN CN201510462234.2A patent/CN106398593B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100063173A1 (en) * | 2008-09-05 | 2010-03-11 | Italo Corzani | Hot melt adhesive composition |
| CN102618211A (en) * | 2012-04-10 | 2012-08-01 | 浙江固特热熔胶有限公司 | Hot melt adhesive used for automotive interiors, and preparation method of hot melt adhesive |
| CN102618190A (en) * | 2012-04-10 | 2012-08-01 | 浙江固特热熔胶有限公司 | Pollution-free efficient insect sticker for vegetables and orchards and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429932A (en) * | 2021-07-08 | 2021-09-24 | 浙江英赛德数码科技有限公司 | Adhesive, adhesive coating method and foam cover with adhesive |
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| CN106398593B (en) | 2018-04-24 |
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Address after: No.99 Nanhui Road, Heshan Industrial Park, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Gute New Material Technology Co.,Ltd. Address before: No.99 Nanhui Road, Heshan Industrial Park, Tongxiang City, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG GOOD ADHESIVE Co.,Ltd. |
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