CN107573636A - High-intensity packing box and preparation method thereof - Google Patents
High-intensity packing box and preparation method thereof Download PDFInfo
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- CN107573636A CN107573636A CN201710722127.8A CN201710722127A CN107573636A CN 107573636 A CN107573636 A CN 107573636A CN 201710722127 A CN201710722127 A CN 201710722127A CN 107573636 A CN107573636 A CN 107573636A
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Abstract
The invention discloses a kind of preparation method of high-intensity packing box, including：First the silane coupler that phenolic resin, ethylene-vinyl acetate copolymer, stearate, starch, sodium alginate, ethyl cellulose, attapulgite, ethyl acetate, glass fibre, citrate and the trade mark are KH560 is mixed, glue refines so that sizing material is made；Then, the sizing material is added in extruder and carries out extrusion molding, processing with obtained high-intensity packing box；Wherein, the extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the operating temperature of the extruder is：90 110 DEG C of feeding section, 110 120 DEG C of stage casing, 160 190 DEG C of extruder head；The glue refining at least meets following condition：Temperature is 130 150 DEG C, and the time is 2 4h.The advantages that packing box has high intensity, degradable, and antibiotic property is strong.
Description
Technical field
The present invention relates to packaging material field, in particular it relates to a kind of high-intensity packing box and preparation method thereof.
Background technology
With the development of electronics technology, also developing to our daily life towards more convenient more efficient direction.
Net purchase, take out to daily life bring very big change, wherein packing box, the frequency of use of food bag is suitable
It is high.
For working clan, it is also the part lived daily that point, which is taken out, and most take-away packing box is all
It is disposable plastic products, its intensity and anti-microbial property are not fine；If the insufficient strength of packing box, in delivery process
In easily occur that food is broken to be spread, influence to use, and the packing box of anti-microbial property difference can directly affect our health.
The content of the invention
It is an object of the invention to provide a kind of high-intensity packing box, the preparing raw material of the high-intensity packing box is simple and easy to get,
The advantages that technique is simple, and obtained composite packaging box has high intensity, degradable, and antibiotic property is strong.
To achieve these goals, the invention provides a kind of preparation method of high-intensity packing box, including：
First by phenolic resin, ethylene-vinyl acetate copolymer, stearate, starch, sodium alginate, ethyl cellulose, recessed
Convex rod soil, ethyl acetate, glass fibre, citrate and the trade mark are that KH560 silane coupler is mixed, glue refines to be made
Sizing material；Then, the sizing material is added in extruder and carries out extrusion molding, processing with obtained high-intensity packing box；
Wherein, the extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the work of the extruder
Temperature is：90-110 DEG C of feeding section, 110-120 DEG C of stage casing, 160-190 DEG C of extruder head；The glue refining at least meets following bar
Part：Temperature is 130-150 DEG C, time 2-4h.
Pass through above-mentioned technical proposal, the present invention by with phenolic resin, ethylene-vinyl acetate copolymer according to specific heavy
Amount proportioning is combined obtained resin body, in addition, be also added into stearate, starch, sodium alginate, ethyl cellulose,
The components such as attapulgite, ethyl acetate and glass fibre carry out special ratios combination so that make be made packing box have it is high-strength
Degree, degradable, the advantages that antibiotic property is strong.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The end points of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
The invention provides a kind of preparation method of high-intensity packing box, including：First by phenolic resin, ethyl vinyl acetate second
Alkene copolymer, stearate, starch, sodium alginate, ethyl cellulose, attapulgite, ethyl acetate, glass fibre, citric acid
Ester and the silane coupler that the trade mark is KH560 are mixed, glue refining is with obtained sizing material；Then, the sizing material is added to extrusion
Extrusion molding, processing are carried out in machine with obtained high-intensity packing box；
Wherein, the extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the work of the extruder
Temperature is：90-110 DEG C of feeding section, 110-120 DEG C of stage casing, 160-190 DEG C of extruder head；The glue refining at least meets following bar
Part：Temperature is 130-150 DEG C, time 2-4h.
In above-mentioned technical proposal, the condition of the mixing can select in wide scope, such as can directly be stirred
Mixing is mixed, but in order to further improve the synergy between the efficiency of mixing and then raising raw material and then make obtained bag
The tension of mounted box is strong, it is preferable that the mixing includes the first mixing and the second mixing；The mode of first mixing is stirred for room temperature
Mix, the mode of second mixing is heating stirring.
Wherein, the condition of first mixing or the second mixing can be adjusted in wide scope, but in order to improve
The tensile strength of packing box made from mixed effect and then raising, it is preferable that first mixing at least meets following condition：Room
Under temperature, rotating speed 2000-3000rpm, and/or time are 2-3h；And/or second mixing at least meets following condition：Temperature
Spend for 110-130 DEG C, rotating speed 2000-3000rpm, and/or the time is 1-2h.
In above-mentioned preparation method, the specific dosage of each raw material can select in wide scope, but each in order to improve
The tensile strength of packing box and anti-microbial property are fresh keeping property made from mutual synergy and then raising between raw material, preferably
Ground, by weight, the phenolic resin, ethylene-vinyl acetate copolymer, stearate, starch, sodium alginate, ethyl are fine
The silane coupled amount ratio that dimension element, attapulgite, ethyl acetate, glass fibre, citrate and the trade mark are KH560 is 100：
5-10：3.5-5.5：3-6：1.5-3.5：2.5-5.5：1-5：3-10：1.5-2.5：0.5-1.2：0.8-1.6.
The molecular weight of resin used in the present invention can select in wide scope, but in order to improve resin and its
Mutual synergy between his raw material, it is preferable that the weight average molecular weight of the phenolic resin is 10,000-2 ten thousand, the ethene-vinegar
The weight average molecular weight of sour ethylene copolymer is 30,000-4 ten thousand.
The content of vinyl acetate can select in wide scope in above-mentioned ethylene-vinyl acetate copolymer used, but
It is to improve the intensity of obtained packing box, it is preferable that the content of vinyl acetate is in the ethylene-vinyl acetate copolymer
5-8 weight %.
State in preparation method, the species of the starch can select in wide scope, but in order to improve each raw material it
Between mutual synergy so that packing box made from improving tensile strength and anti-microbial property, it is preferable that the starch is green
Beans starch, tapioca, sweet potato starch, starch from sweet potato, farina, wheat kind of starch, water caltrop starch, Rhizoma Nelumbinis starch and corn form sediment
One or more in powder.
In above-mentioned technical proposal, the length of the glass fibre can select in wide scope, but in order to improve system
Obtain the intensity of packing box, it is preferable that the length of the glass fibre is 10-15 μm.
In above-mentioned technical proposal, the species of the stearate can select in wide scope, but in order to improve system
Packing box intensity and anti-microbial property, it is preferable that the stearate be selected from odium stearate, magnesium stearate, calcium stearate,
One or more in aluminum stearate and potassium stearate.
High-intensity packing box made from a kind of above-mentioned preparation method is additionally provided in the present invention.
The present invention will be described in detail by way of examples below.
Embodiment 1
Phenolic resin (weight average molecular weight is 10,000), (weight average molecular weight is 30,000 to ethylene-vinyl acetate copolymer, and acetic acid
The content of ethene is 5 weight %), odium stearate, starch from sweet potato, sodium alginate, ethyl cellulose, attapulgite, ethyl acetate,
Glass fibre (length is 10 μm), citrate and silane coupler that the trade mark is KH560 are first at 25 DEG C of room temperature, selection of speed
2000rpm is stirred 3h；Then, at 110 DEG C, selection of speed 2000rpm be stirred 2h；Followed by 130 DEG C of glue refinings
Sizing material is obtained after 4h；
Finally, the sizing material is added to extruder (operating temperature of extruder is：90 DEG C of feeding section, 110 DEG C of stage casing,
170 DEG C of extruder head) in carry out extrusion molding, processing so that high-intensity packing box is made, be denoted as A1；
Wherein, the phenolic resin, ethylene-vinyl acetate copolymer, odium stearate, starch, sodium alginate, ethyl cellulose
The silane coupled weight ratio that element, attapulgite, ethyl acetate, glass fibre, citrate and the trade mark are KH560 is 100：5：
3.5：3：1.5：2.5：1：3：1.5：0.5：0.8.
Embodiment 2
Phenolic resin (weight average molecular weight is 1.5 ten thousand), ethylene-vinyl acetate copolymer (weight average molecular weight is 3.5 ten thousand, and
The content of vinyl acetate is 7 weight %), calcium stearate, starch, sodium alginate, ethyl cellulose, attapulgite, ethyl acetate,
Glass fibre (length is 10 μm), citrate and silane coupler that the trade mark is KH560 are first at 25 DEG C of room temperature, selection of speed
2500rpm is stirred 2.5h；Then, at 120 DEG C, selection of speed 2500rpm be stirred 1.5h；Followed by 140 DEG C
Sizing material is obtained after glue refining 3h；
Finally, the sizing material is added to extruder (operating temperature of extruder is：100 DEG C of feeding section, 115 DEG C of stage casing,
180 DEG C of extruder head) in carry out extrusion molding, processing so that high-intensity packing box is made, be denoted as A2；
Wherein, the phenolic resin, ethylene-vinyl acetate copolymer, calcium stearate, starch, sodium alginate, ethyl cellulose
The silane coupled weight ratio that element, attapulgite, ethyl acetate, glass fibre, citrate and the trade mark are KH560 is 100：8：
4.5：4：2.5：3.5：3：7：2.1：0.8：1.2.
Embodiment 3
Phenolic resin (weight average molecular weight is 20,000), (weight average molecular weight is 40,000 to ethylene-vinyl acetate copolymer, and acetic acid
The content of ethene is 8 weight %), potassium stearate, starch, sodium alginate, ethyl cellulose, attapulgite, ethyl acetate, glass
The silane coupler elder generation that fiber, citrate and the trade mark are KH560 is at 25 DEG C of room temperature, selection of speed 3000rpm is stirred
2h；Then, at 130 DEG C, selection of speed 3000rpm be stirred 1h；Followed by obtaining sizing material after 150 DEG C of glue refine 2h；
Finally, the sizing material is added to extruder (operating temperature of extruder is：110 DEG C of feeding section, 120 DEG C of stage casing,
190 DEG C of extruder head) in carry out extrusion molding, processing so that high-intensity packing box is made, be denoted as A3；
Wherein, the phenolic resin, ethylene-vinyl acetate copolymer, potassium stearate, starch, sodium alginate, ethyl cellulose
The silane coupled weight ratio that element, attapulgite, ethyl acetate, glass fibre, citrate and the trade mark are KH560 is 100：
10：5.5：6：3.5：5.5：5：10：2.5：1.2：1.6.
Embodiment 4
According to the method for embodiment 1, high-intensity packing box A4 is made；The second mixing is not carried out unlike the difference is that,
I.e. after the mixing of each raw material only at 25 DEG C, selection of speed 2000rpm is stirred after 5h and directly carries out glue and refine to obtain glue refining M1.
Embodiment 5
According to the method for embodiment 1, high-intensity packing box A5 is made；The difference is that the step of not carrying out the first mixing, i.e.,
After the mixing of each raw material directly at 110 DEG C, 2000rpm is stirred after 5h and directly carries out glue and refine to obtain glue refining M1.
Embodiment 6
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as A6；The difference is that the ethene-vinyl acetate is total to
The content of vinyl acetate is 3 weight % in polymers.
Comparative example 1
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B1；The temperature of glue refining is unlike the difference is that
110℃。
Comparative example 2
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B2；The difference is that the temperature of glue refining is 160 DEG C.
Comparative example 3
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B3；The difference is that the operating temperature of extruder is：
90 DEG C of feeding section, 90 DEG C of stage casing, 170 DEG C of extruder head.
Comparative example 4
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B4；The difference is that the operating temperature of extruder is：
110 DEG C of feeding section, 110 DEG C of stage casing, 170 DEG C of extruder head.
Comparative example 5
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B5；The difference is that the operating temperature of extruder is：
170 DEG C of feeding section, 170 DEG C of stage casing, 170 DEG C of extruder head.
Comparative example 6
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B6；The difference is that ethene-vinegar is not added in raw material
Sour ethylene copolymer.
Comparative example 7
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B7；The difference is that starch is not added in raw material.
Comparative example 8
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B8；The difference is that alginic acid is not added in raw material
Sodium.
Comparative example 9
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B9；The difference is that ethyl cellulose is not added in raw material
Element.
Comparative example 10
High-intensity packing box is prepared Following the procedure of Example 1, is denoted as B10；The difference is that glass fibers are not added in raw material
Dimension.
Detect example 1
High-intensity packing box A1-A6 and B1-B10 is surveyed according to national standard according to national standard GB/T1043.1-2008 regulation
Try its tensile strength (MPa) and impact strength (MJ/m2)；Concrete outcome is shown in Table 1.
Detect example 2
High-intensity packing box A1-A6 and B1-B10 are placed in 25-30 DEG C of open environment, and air humidity is 8
Gram water/m3, total plate count (n/cfug is detected by national standard GB 4789.2-2010 method after 7 days-1), concrete outcome is shown in Table
1。
Table 1
By above-described embodiment and the testing result of comparative example, the preparation of the high-intensity packing box provided in the present invention
In method, the control to each section of temperature of extruder exists：90-110 DEG C of feeding section, 110-120 DEG C of stage casing, extruder head 160-
190 DEG C, it can effectively ensure that the intensity of obtained packing box；In addition, the temperature control of glue refining can obtain by force at 130-150 DEG C
Spend optimal packing box.In addition, the starch, sodium alginate, ethyl cellulose and glass fibre used in raw material can be very
The anti-microbial property of packing box made from good raising.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
- A kind of 1. preparation method of high-intensity packing box, it is characterised in that including：First by phenolic resin, ethylene-vinyl acetate copolymer, stearate, starch, sodium alginate, ethyl cellulose, concave convex rod Soil, ethyl acetate, glass fibre, citrate and the trade mark are that KH560 silane coupler is mixed, glue refines so that glue is made Material；Then, the sizing material is added in extruder and carries out extrusion molding, processing with obtained high-intensity packing box；Wherein, the extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the operating temperature of the extruder For：90-110 DEG C of feeding section, 110-120 DEG C of stage casing, 160-190 DEG C of extruder head；The glue refining at least meets following condition：Temperature Spend for 130-150 DEG C, time 2-4h.
- 2. preparation method according to claim 1, wherein, the mixing includes the first mixing and the second mixing；Described For the mode of one mixing to be stirred at room temperature, the mode of second mixing is heating stirring.
- 3. preparation method according to claim 2, wherein, first mixing at least meets following condition：At room temperature, turn Speed is 2000-3000rpm, and/or the time is 2-3h；And/or second mixing at least meets following condition：Temperature is 110- 130 DEG C, rotating speed 2000-3000rpm, and/or the time is 1-2h.
- 4. preparation method according to claim 1, wherein, by weight, the phenolic resin, ethene-vinyl acetate Copolymer, stearate, starch, sodium alginate, ethyl cellulose, attapulgite, ethyl acetate, glass fibre, citrate The silane coupled amount ratio for being KH560 with the trade mark is 100：5-10：3.5-5.5：3-6：1.5-3.5：2.5-5.5：1-5：3- 10：1.5-2.5：0.5-1.2：0.8-1.6.
- 5. preparation method according to claim 4, wherein, the weight average molecular weight of the phenolic resin is 10,000-2 ten thousand, described The weight average molecular weight of ethylene-vinyl acetate copolymer is 30,000-4 ten thousand.
- 6. preparation method according to claim 4, wherein, vinyl acetate contains in the ethylene-vinyl acetate copolymer Measure as 5-8 weight %.
- 7. preparation method according to claim 1, wherein, the starch be green starch, tapioca, sweet potato starch, One or more in starch from sweet potato, farina, wheat kind of starch, water caltrop starch, Rhizoma Nelumbinis starch and cornstarch.
- 8. preparation method according to claim 1, wherein, the length of the glass fibre is 10-15 μm.
- 9. preparation method according to claim 1, wherein, the stearate is selected from odium stearate, magnesium stearate, tristearin One or more in sour calcium, aluminum stearate and potassium stearate.
- 10. high-intensity packing box made from the preparation method in a kind of 1-9 as claim described in any one.
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