CN105035493B - Stretch-proof paper and plastics compound bag and preparation method thereof - Google Patents
Stretch-proof paper and plastics compound bag and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of stretch-proof paper and plastics compound bag and preparation method thereof, the stretch-proof paper and plastics compound bag includes plastic layer and paper layer, and the plastic layer is located on the surface of the paper layer；Wherein, the plastic layer includes polypropylene, polyethylene, polyethylene terephthalate, vinal, polyurethanes, phenolic resin, epoxy resin, polyacrylamide, dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and stearic acid sodium.The stretch-proof paper and plastics compound bag has excellent tensile strength, while the preparation method step is simple, and raw material is easy to get.
Description
Technical field
The present invention relates to complex pocket manufacturing field, in particular it relates to a kind of stretch-proof paper and plastics compound bag and preparation method thereof.
Background technology
Paper and plastics compound bag has been widely applied in daily life as a kind of easily storing apparatus, is commonly used
It is a kind of conventional packaging material to hold and transport small article, paper plastic bag is typically combined by plastic layer and paper layer,
It is a kind of compound paper bag of superior performance.
At present, the plastic layer of paper plastic bag is mainly made up of macromolecule organic materials such as polypropylene, polyethylene, these materials
Tensile strength is very poor, and when applying larger tensile force effect to this paper and plastics compound bag, the paper and plastics compound bag can deform,
Even it is broken, influences normal use.
The content of the invention
For above-mentioned prior art, it is an object of the invention to provide a kind of stretch-proof paper and plastics compound bag and its preparation side
Method, the stretch-proof paper and plastics compound bag has excellent tensile strength, while the preparation method step is simple, and raw material is easy to get.
To achieve these goals, the invention provides a kind of stretch-proof paper and plastics compound bag, the stretch-proof paper and plastics compound bag
Including plastic layer and paper layer, the plastic layer is located on the surface of the paper layer；
Wherein, the plastic layer includes polypropylene, polyethylene, polyethylene terephthalate, vinal, poly-
Carbamate, phenolic resin, epoxy resin, polyacrylamide, dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate
With stearic acid sodium.
Present invention also offers a kind of preparation method of stretch-proof paper and plastics compound bag, the preparation method includes：
(1) by polypropylene, polyethylene, polyethylene terephthalate, vinal, polyurethanes, phenol
Urea formaldehyde, epoxy resin, polyacrylamide, dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and stearic acid sodium mix
Film is made in extrusion molding after conjunction；
(2) film is heated and is coated on the surface of paper layer and form plastic layer so that extrusion coating paper is made；Or
Person cuts the film, wire drawing and is woven into plastic layer, then sticks the plastic layer in the papery by the way that binding agent is viscous
With obtained extrusion coating paper on the surface of layer；
(3) extrusion coating paper is machined to stretch-proof paper and plastics compound bag.
Pass through above-mentioned technical proposal, the plastic layer in stretch-proof paper and plastics compound bag provided by the invention include polypropylene, poly-
Ethene, polyethylene terephthalate, vinal, polyurethanes, phenolic resin, epoxy resin, polypropylene
Acid amides, dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and stearic acid sodium.With paper and plastics compound bag of the prior art
Compare, there is polyethylene terephthalate, vinal, polyurethanes, phenol in the plastic layer in the present invention
Urea formaldehyde, epoxy resin, polyacrylamide, have with synergy and between other components and assist between six kinds of components
Same-action, and then cause the stretch-proof paper and plastics compound bag that there is excellent tensile strength, in addition, preparation provided by the invention can drop
The method of solution paper and plastics compound bag is not only simple easy, while raw material is simple and easy to get, and cost is cheap so that the stretch-proof paper-plastic stick
Bag can carry out large-scale industrial production.
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 invention provides one kind, the invention provides a kind of stretch-proof paper and plastics compound bag, the stretch-proof paper and plastics compound bag bag
Plastic layer and paper layer are included, plastic layer is located on the surface of the paper layer；Wherein, plastic layer includes polypropylene, polyethylene, gathered
Ethylene glycol terephthalate, vinal, polyurethanes, phenolic resin, epoxy resin, polyacrylamide, two
Methyl sulfoxide, glycerine, lactose, dibutyl phthalate and stearic acid sodium.
In the present invention, polyacrylic weight average molecular weight can select in wide scope, but in order that obtain obtained
The tensile strength of stretch-proof paper and plastics compound bag is more excellent, it is preferable that polyacrylic weight average molecular weight is 80000-100000.
Certainly, the weight average molecular weight of polyethylene can select in wide scope, but in order that obtain obtained stretch-proof
The tensile resistance of paper and plastics compound bag is more preferable, it is preferable that the weight average molecular weight of polyethylene is 14000-28000.
Likewise, the weight average molecular weight of polyethylene terephthalate can have multiple choices, it is obtained in order to improve
The tensile strength of paper and plastics compound bag, it is preferable that the weight average molecular weight of polyethylene terephthalate is 19000-28000.
In the present invention, the weight average molecular weight of vinal can select in wide scope, but in order that
The tensile strength of obtained stretch-proof paper and plastics compound bag is more excellent, it is preferable that the weight average molecular weight of vinal is
25000-35000。
Meanwhile the weight average molecular weight of polyurethanes can select in wide scope, but it is obtained anti-from causing
The tensile strength for stretching paper and plastics compound bag more excellent etc. considers, it is preferable that the weight average molecular weight of polyurethanes is
13000-20000。
Certainly, the weight average molecular weight of polyacrylamide can have multiple choices, but in order that obtain obtained stretch-proof paper
The tensile resistance for moulding complex pocket is more preferable, it is preferable that the weight average molecular weight of polyacrylamide is 35000-50000.
In the present invention, the weight average molecular weight of phenolic resin can select in wide scope, but obtained from causing
The tensile strength of stretch-proof paper and plastics compound bag is more excellent etc. to be considered, it is preferable that the weight average molecular weight of phenolic resin is
12000-18000。
Likewise, the weight average molecular weight of epoxy resin there can be multiple choices, but in order that obtain obtained stretch-proof paper
The tensile strength for moulding complex pocket is more excellent, it is preferable that the weight average molecular weight of epoxy resin is 16000-24000.
In the present invention, the content of each component can select in wide scope, but in order that the paper and plastics compound bag
Tensile resistance is more excellent, it is preferable that relative to the polypropylene of 100 parts by weight, the content of the polyethylene is 20-25 weight
Part, the content of the polyethylene terephthalate is 15-30 parts by weight, and the content of the vinal is 10-25
Parts by weight, the content of the polyurethanes are 20-25 parts by weight, and the content of the phenolic resin is 5-10 parts by weight, institute
The content for stating epoxy resin is 5-10 parts by weight, and the content of the polyacrylamide is 5-15 parts by weight, the dimethyl sulfoxide (DMSO)
Content be 10-15 parts by weight, the content of the glycerine is 2-5 parts by weight, and the content of the lactose is 1-3 parts by weight, described
The content of dibutyl phthalate is 2-5 parts by weight, and the stearic acid sodium content is 2-4 parts by weight.
In the present invention, the material of the paper layer can select in wide scope, but from wearability and stretch-proof
Property consider, it is preferable that the paper layer is brown paper or corrugated paper.
Present invention also offers a kind of preparation method of stretch-proof paper and plastics compound bag, this method includes：
(1) by polypropylene, polyethylene, polyethylene terephthalate, vinal, polyurethanes, phenol
Urea formaldehyde, epoxy resin, polyacrylamide, dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and stearic acid sodium mix
Film is made in extrusion molding after conjunction；
(2) film is heated and is coated on the surface of paper layer and form plastic layer so that extrusion coating paper is made；Or
Person cuts the film, wire drawing and is woven into plastic layer, then sticks the plastic layer in the papery by the way that binding agent is viscous
With obtained extrusion coating paper on the surface of layer；
(3) extrusion coating paper is machined to stretch-proof paper and plastics compound bag.
In above-mentioned preparation method, polyacrylic weight average molecular weight can select in wide scope, but in order that
The tensile strength of obtained stretch-proof paper and plastics compound bag is more excellent, it is preferable that polyacrylic weight average molecular weight is 80000-
100000。
Certainly, the weight average molecular weight of polyethylene can select in wide scope, but in order that obtain obtained stretch-proof
The tensile resistance of paper and plastics compound bag is more preferable, it is preferable that the weight average molecular weight of polyethylene is 14000-28000.
Likewise, the weight average molecular weight of polyethylene terephthalate can have multiple choices, it is obtained in order to improve
The tensile strength of paper and plastics compound bag, it is preferable that the weight average molecular weight of polyethylene terephthalate is 19000-28000.
In the present invention, the weight average molecular weight of vinal can select in wide scope, but in order that
The tensile strength of obtained stretch-proof paper and plastics compound bag is more excellent, it is preferable that the weight average molecular weight of vinal is
25000-35000。
Meanwhile the weight average molecular weight of polyurethanes can select in wide scope, but it is obtained anti-from causing
The tensile strength for stretching paper and plastics compound bag more excellent etc. considers, it is preferable that the weight average molecular weight of polyurethanes is
13000-20000。
Certainly, the weight average molecular weight of polyacrylamide can have multiple choices, but in order that obtain obtained stretch-proof paper
The tensile resistance for moulding complex pocket is more preferable, it is preferable that the weight average molecular weight of polyacrylamide is 35000-50000.
In above-mentioned preparation method, the weight average molecular weight of phenolic resin can select in wide scope, but from causing
The tensile strength of obtained stretch-proof paper and plastics compound bag is more excellent etc. to be considered, it is preferable that the Weight-average molecular of phenolic resin
Measure as 12000-18000.
Likewise, the weight average molecular weight of epoxy resin there can be multiple choices, but in order that obtain obtained stretch-proof paper
The tensile strength for moulding complex pocket is more excellent, it is preferable that the weight average molecular weight of epoxy resin is 16000-24000.
In above-mentioned preparation method, the content of each component can be selected in wide scope, but in order that the paper is answered
The tensile resistance for closing bag is more excellent, it is preferable that relative to the polypropylene of 100 parts by weight, the content of the polyethylene is 20-
25 parts by weight, the content of the polyethylene terephthalate is 15-30 parts by weight, and the content of the vinal is
10-25 parts by weight, the content of the polyurethanes is 20-25 parts by weight, and the content of the phenolic resin is 5-10 weight
Part, the content of the epoxy resin is 5-10 parts by weight, and the content of the polyacrylamide is 5-15 parts by weight, the dimethyl
The content of sulfoxide is 10-15 parts by weight, and the content of the glycerine is 2-5 parts by weight, and the content of the lactose is 1-3 parts by weight,
The content of the dibutyl phthalate is 2-5 parts by weight, and the stearic acid sodium content is 2-4 parts by weight.
In above-mentioned preparation method, the material of the paper layer can select in wide scope, but from wearability and
Stretch-resistance considers, it is preferable that the paper layer is brown paper or corrugated paper.
The present invention will be described in detail by way of examples below.In following examples, tensile strength (Rm) parameter is pressed
Measured according to standard GB/T/T 1040.3-2006；The polyethylene terephthalate is that various schools of thinkers contains Chemical Co., Ltd.
Commercially available product, the vinal are bought from Zhengzhou Yu Jian groups, and the polyurethanes is that Langfang Bohai Sea polyurethane has
The commercially available product of limit company, the phenolic resin and epoxy resin are bought from Materials Co., Ltd of Xinxiang City, the polyacrylamide
For the product of Henan Jin Hao Materials Co., Ltd.
Embodiment 1
(1) at 25 DEG C, by polypropylene (weight average molecular weight 90000), polyethylene (weight average molecular weight 18000), gather
Ethylene glycol terephthalate (weight average molecular weight 24000), vinal (weight average molecular weight 28000), poly- amino
(weight average molecular weight is for formic acid esters (weight average molecular weight 16000), phenolic resin (weight average molecular weight 14000), epoxy resin
21000), polyacrylamide (weight average molecular weight 42000), dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and
(mass ratio of raw material is followed successively by 100 to stearic acid sodium：22：25：15：21：8：8：10：12：4：2：3) 2h is mixed, and at 240 DEG C
Film is made in extrusion molding.
(2) film cut, wire drawing and be woven into plastic layer, then stick plastic layer in paper layer by the way that binding agent is viscous
So that extrusion coating paper is made, (paper layer and the thickness ratio of plastic layer is 1 on surface：1).
(3) above-mentioned extrusion coating paper is machined to degradable paper and plastics compound bag A1；
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 2
(1) at 25 DEG C, by polypropylene (weight average molecular weight 80000), polyethylene (weight average molecular weight 14000), gather
Ethylene glycol terephthalate (weight average molecular weight 19000), vinal (weight average molecular weight 25000), poly- amino
(weight average molecular weight is for formic acid esters (weight average molecular weight 13000), phenolic resin (weight average molecular weight 12000), epoxy resin
16000), polyacrylamide (weight average molecular weight 35000), dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and
(mass ratio of raw material is 100 to stearic acid sodium：20：25：15：21：8：8：10：10：2：1：2：2) 2h is mixed, and is squeezed at 240 DEG C
Go out shaping and film is made.
(2) film cut, wire drawing and be woven into plastic layer, then stick plastic layer in paper layer by the way that binding agent is viscous
So that extrusion coating paper is made, (paper layer and the thickness ratio of plastic layer is 1.1 on surface：1).
(3) above-mentioned extrusion coating paper is machined to degradable paper and plastics compound bag A2；
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 3
(1) at 25 DEG C, by polypropylene (weight average molecular weight 90000), polyethylene (weight average molecular weight 28000), gather
Ethylene glycol terephthalate (weight average molecular weight 28000), vinal (weight average molecular weight 35000), poly- amino
(weight average molecular weight is for formic acid esters (weight average molecular weight 20000), phenolic resin (weight average molecular weight 18000), epoxy resin
24000), polyacrylamide (weight average molecular weight 50000), dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and
(mass ratio of raw material is followed successively by 100 to stearic acid sodium：25：25：15：21：8：8：10：15：5：3：5：4) 2h is mixed, and at 240 DEG C
Film is made in lower extrusion molding.
(2) film cut, wire drawing, be woven into plastic layer, then stick plastic layer in paper layer by the way that binding agent is viscous
So that extrusion coating paper is made, (paper layer and the thickness ratio of plastic layer is 1.05 on surface：1).
(3) above-mentioned extrusion coating paper is machined to degradable paper and plastics compound bag A2.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 4
Stretch-proof paper and plastics compound bag A4 is prepared Following the procedure of Example 1, except that, change poly terephthalic acid second
The dosage of diol ester make it that the mass ratio of polypropylene and polyethylene terephthalate is 100：15.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 5
Stretch-proof paper and plastics compound bag A5 is prepared Following the procedure of Example 1, except that, change poly terephthalic acid second
The dosage of diol ester make it that the mass ratio of polypropylene and polyethylene terephthalate is 100：30.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 6
Stretch-proof paper and plastics compound bag A6 is prepared Following the procedure of Example 1, except that, change vinal
Dosage causes the mass ratio of polypropylene and vinal to be changed to 100：10.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 7
Stretch-proof paper and plastics compound bag A7 is prepared Following the procedure of Example 1, except that, change vinal
Dosage causes the mass ratio of polypropylene and vinal to be changed to 100：25.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 8
Stretch-proof paper and plastics compound bag A8 is prepared Following the procedure of Example 1, except that, change polyurethanes
Dosage causes the mass ratio of polypropylene and polyurethanes to be changed to 100：20.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 9
Stretch-proof paper and plastics compound bag A9 is prepared Following the procedure of Example 1, except that, change polyurethanes
Dosage causes the mass ratio of polypropylene and polyurethanes to be changed to 100：25.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 10
Stretch-proof paper and plastics compound bag A10 is prepared Following the procedure of Example 1, except that, change the use of phenolic resin
Amount causes the mass ratio of polypropylene and phenolic resin to be changed to 100：5.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 11
Stretch-proof paper and plastics compound bag A11 is prepared Following the procedure of Example 1, except that, change the use of phenolic resin
Amount causes the mass ratio of polypropylene and phenolic resin to be changed to 100：10.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 1.
Embodiment 12
Stretch-proof paper and plastics compound bag A12 is prepared Following the procedure of Example 1, except that, change the use of epoxy resin
Amount causes the mass ratio of polypropylene and epoxy resin to be changed to 100:5.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Embodiment 13
Stretch-proof paper and plastics compound bag A13 is prepared Following the procedure of Example 1, except that, change the use of epoxy resin
Amount causes the mass ratio of polypropylene and epoxy resin to be changed to 100:10.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Embodiment 14
Stretch-proof paper and plastics compound bag A14 is prepared Following the procedure of Example 1, except that, change polyacrylamide
Dosage causes the mass ratio of polypropylene and polyacrylamide to be changed to 100：5.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Embodiment 15
Stretch-proof paper and plastics compound bag A15 is prepared Following the procedure of Example 1, except that, change polyacrylamide
The mass ratio of dosage polypropylene and polyacrylamide is changed to 100：15.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Embodiment 16
(1) at 25 DEG C, polypropylene (weight average molecular weight 90000), polyethylene (weight average molecular weight 18000) gather
Ethylene glycol terephthalate (weight average molecular weight 24000), vinal (weight average molecular weight 28000), poly- amino
Formic acid esters (weight average molecular weight 16000), phenolic resin (weight average molecular weight 14000), (weight average molecular weight is epoxy resin
21000), polyacrylamide (weight average molecular weight 42000), dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate, firmly
(mass ratio of raw material is followed successively by 100 to matter acid sodium：22：25：15：21：8：8：10：12：4：2：3：3) 2h is mixed, and at 240 DEG C
Film is made in extrusion molding.
(2) film is carried out being heated to 230 DEG C and be coated on the surface of paper layer to form plastic layer to be made multiple
(paper layer and the thickness ratio of plastic layer are 1 to combined paper：1).
(3) above-mentioned extrusion coating paper is machined to degradable paper and plastics compound bag A16.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Comparative example 1
Carried out by the embodiment of embodiment 1, except that, polyethylene terephthalate is not contained in raw material,
Stretch-proof paper and plastics compound bag B1 is made.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Comparative example 2
Carried out by the embodiment of embodiment 1, except that, vinal is not contained in raw material, tension is made
Stretch paper and plastics compound bag B2.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Comparative example 3
Carried out by the embodiment of embodiment 1, except that, polyurethanes is not contained in raw material, tension is made
Stretch paper and plastics compound bag B3.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Comparative example 4
Carried out by the embodiment of embodiment 1, except that, phenolic resin is not contained in raw material, stretch-proof paper is made
Mould complex pocket B4.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Comparative example 5
Carried out by the embodiment of embodiment 1, except that, epoxy resin is not contained in raw material, stretch-proof paper is made
Mould complex pocket B5.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Comparative example 6
Carried out by the embodiment of embodiment 1, except that, polyacrylamide is not contained in raw material, stretch-proof is made
Paper and plastics compound bag B6.
The tensile strength parameter (Rm) of the stretch-proof paper and plastics compound bag is shown in Table 2.
Table 1
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | |
| Rm/MPa | 59 | 55 | 58 | 56 | 56 | 57 | 57 | 55 | 58 | 57 | 57 |
Table 2
| A12 | A13 | A14 | A15 | A16 | B1 | B2 | B3 | B4 | B5 | B6 | |
| Rm/MPa | 58 | 56 | 55 | 56 | 57 | 20 | 25 | 22 | 25 | 29 | 25 |
From Tables 1 and 2, paper and plastics compound bag provided by the invention has excellent tensile resistance, relative to A1-
A16, B1-B6 tensile strength are obviously reduced, and indicate polyethylene terephthalate, vinal, poly- amino first
Between this six kinds of components of acid esters, phenolic resin, epoxy resin and polyacrylamide have synergy and with other components it
Between have synergy, and then cause paper and plastics compound bag there is excellent tensile strength.
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 (4)
- A kind of 1. stretch-proof paper and plastics compound bag, it is characterised in that the stretch-proof paper and plastics compound bag includes plastic layer and paper layer, The plastic layer is located on the surface of the paper layer；Wherein, the plastic layer includes polypropylene, polyethylene, polyethylene terephthalate, vinal, poly- amino Formic acid esters, phenolic resin, epoxy resin, polyacrylamide, dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and hard Matter acid sodium；Wherein, the polyacrylic weight average molecular weight is 80000-100000, and the weight average molecular weight of the polyethylene is 14000- 28000, the weight average molecular weight of the polyethylene terephthalate is 19000-28000, the weight of the vinal Average molecular weight is 25000-35000, and the weight average molecular weight of the polyurethanes is 13000-20000, the phenolic resin Weight average molecular weight be 12000-18000, the weight average molecular weight of the epoxy resin is 16000-24000, the polyacrylamide The weight average molecular weight of amine is 35000-50000；Wherein, relative to the polypropylene of 100 parts by weight, the content of the polyethylene is 20-25 parts by weight, the poly- terephthaldehyde The content of sour glycol ester is 15-30 parts by weight, and the content of the vinal is 10-25 parts by weight, the poly- amino The content of formic acid esters is 20-25 parts by weight, and the content of the phenolic resin is 5-10 parts by weight, and the content of the epoxy resin is 5-10 parts by weight, the content of the polyacrylamide is 5-15 parts by weight, and the content of the dimethyl sulfoxide (DMSO) is 10-15 weight Part, the content of the glycerine is 2-5 parts by weight, and the content of the lactose is 1-3 parts by weight, the dibutyl phthalate Content is 2-5 parts by weight, and the stearic acid sodium content is 2-4 parts by weight.
- 2. stretch-proof paper and plastics compound bag according to claim 1, wherein, the paper layer is brown paper or corrugated paper.
- 3. a kind of preparation method of stretch-proof paper and plastics compound bag, it is characterised in that the preparation method includes：(1) by polypropylene, polyethylene, polyethylene terephthalate, vinal, polyurethanes, phenolic aldehyde tree After fat, epoxy resin, polyacrylamide, dimethyl sulfoxide (DMSO), glycerine, lactose, dibutyl phthalate and the mixing of stearic acid sodium Film is made in extrusion molding；(2) film is heated and is coated on the surface of paper layer and form plastic layer so that extrusion coating paper is made；Or will Film cutting, wire drawing and plastic layer is woven into, then sticks the plastic layer in the paper layer by the way that binding agent is viscous With obtained extrusion coating paper on surface；(3) extrusion coating paper is machined to stretch-proof paper and plastics compound bag；Wherein, the polyacrylic weight average molecular weight is 80000-100000, and the weight average molecular weight of the polyethylene is 14000- 28000, the weight average molecular weight of the polyethylene terephthalate is 19000-28000, the weight of the vinal Average molecular weight is 25000-35000, and the weight average molecular weight of the polyurethanes is phenolic resin described in 13000-20000 Weight average molecular weight is 12000-18000, and the weight average molecular weight of the epoxy resin is 16000-24000, the polyacrylamide Weight average molecular weight be 35000-50000；Wherein, relative to the polypropylene of 100 parts by weight, the dosage of the polyethylene is 20-25 parts by weight, the poly- terephthaldehyde The dosage of sour glycol ester is 15-30 parts by weight, and the dosage of the vinal is 10-25 parts by weight, the poly- amino The dosage of formic acid esters is 20-25 parts by weight, and the dosage of the phenolic resin is 5-10 parts by weight, and the dosage of the epoxy resin is 5-10 parts by weight, the dosage of the polyacrylamide is 5-15 parts by weight, and the dosage of the dimethyl sulfoxide (DMSO) is 10-15 weight Part, the dosage of the glycerine is 2-5 parts by weight, and the dosage of the lactose is 1-3 parts by weight, the dibutyl phthalate Dosage is 2-5 parts by weight, and the stearic acid sodium dosage is 2-4 parts by weight.
- 4. preparation method according to claim 3, wherein, the paper layer is brown paper or corrugated paper.
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| CN105924733A (en) * | 2016-06-08 | 2016-09-07 | 铜陵方正塑业科技有限公司 | Flame retardant paper-plastic compound bag and preparation method there of |
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| CN107698811A (en) * | 2017-10-19 | 2018-02-16 | 桐城市人和包装有限公司 | A kind of degradable composite paper-plastic material |
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