CN109293996A - A kind of degradable environment protection paper-plastic bag and preparation method thereof - Google Patents

A kind of degradable environment protection paper-plastic bag and preparation method thereof Download PDF

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CN109293996A
CN109293996A CN201811032174.0A CN201811032174A CN109293996A CN 109293996 A CN109293996 A CN 109293996A CN 201811032174 A CN201811032174 A CN 201811032174A CN 109293996 A CN109293996 A CN 109293996A
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environment protection
degradable environment
protection paper
preparation
plastic bag
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程小飞
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Anhui Xinxiang Packaging Material Co Ltd
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Anhui Xinxiang Packaging Material Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/06—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/716—Degradable
    • B32B2307/7163—Biodegradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • B32B2317/122—Kraft paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C08J2471/02—Polyalkylene oxides

Abstract

The invention discloses a kind of preparation methods of degradable environment protection paper-plastic bag; include the following steps: 2; 2- dimethoxy -2- phenyl acetophenone ethanol solution, methacrylic acid list sealing end Aqueous Solutions of Polyethylene Glycol, butyl methacrylate mixing; stirred under nitrogen atmosphere; ultraviolet irradiation; centrifugation, is dried to obtain material a；In water by starch dissolution, material a, polylactic acid, polyethylene stirring is added, heating is kneaded, dry, pulverize, be dried to obtain material b；Material b is heated to molten condition, 9 are sequentially added under stirring, 10- octyl epoxy stearate, wheat straw fiber, white carbon black, Yi Laishi, mica powder, silane coupling agent, hyaluronic acid, polyethylene glycol, epoxidized soybean oil, dibutyl tin dilaurate, UV531 UV resistant agent, it stirs evenly, extrusion obtains film, and film is covered in brown paper surface and obtains degradable environment protection paper-plastic bag.

Description

A kind of degradable environment protection paper-plastic bag and preparation method thereof
Technical field
The present invention relates to paper plastic bag technical fields more particularly to a kind of degradable environment protection paper-plastic bag and preparation method thereof.
Background technique
Currently, plastics have become the essential synthetic material in for people's lives.With the continuous growth of plastics yield, Serious problem of environmental pollution is also brought while bringing convenient.Since plastics have acid and alkali-resistance, anti-oxidant, difficult Burn into characteristic difficult to degrade, by all imputrescibilities century-old after its buried processing, when burning, can generate a large amount of toxic gas.
Therefore, while studying Recycle of Waste Plastics, degradation plastic solves plastic waste as most probable The approach of gurry problem and become the hot spot studied both at home and abroad, current degradation plastic has that water resistance is insufficient, As a technical problem to be solved urgently.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of degradable environment protection paper-plastic bag and its preparation sides Method, gained paper plastic bag is degradable, and water-tolerant.
A kind of preparation method of degradable environment protection paper-plastic bag proposed by the present invention, includes the following steps:
S1, by 2,2- dimethoxy -2- phenyl acetophenone ethanol solution, methacrylic acid list sealing end polyethylene glycol it is water-soluble Liquid, butyl methacrylate mixing, stirred under nitrogen atmosphere, ultraviolet irradiation, centrifugation are dried to obtain material a；
S2, by starch dissolution in water, be added material a, polylactic acid, polyethylene stirring, heating be kneaded, dry, pulverize, do It is dry to obtain material b；
S3, material b is heated to molten condition, 9,10- octyl epoxy stearate, wheat straw is sequentially added under stirring Fiber, white carbon black, Yi Laishi, mica powder, silane coupling agent, hyaluronic acid, polyethylene glycol, epoxidized soybean oil, tin dilaurate two Butyl tin, UV531 UV resistant agent, stir evenly, extrusion obtain film, by film be covered in brown paper surface obtain it is degradable Environment protection paper-plastic bag.
Preferably, in S1,2,2- dimethoxy -2- phenyl acetophenone ethanol solutions, methacrylic acid list block poly- second two Alcohol solution, butyl methacrylate weight ratio be 22-36:12-22:2-8,2,2- dimethoxy -2- phenyl acetophenone second Alcoholic solution concentration is 10-18wt%, and it is 10-12wt% that methacrylic acid list, which blocks Aqueous Solutions of Polyethylene Glycol concentration,.
Preferably, in S1,2,2- dimethoxy -2- phenyl acetophenone ethanol solution, methacrylic acid list are blocked into poly- second Two alcohol solutions, butyl methacrylate mixing, stirred under nitrogen atmosphere 10-16min, ultraviolet irradiation 1-2h, irradiation intensity are 4.9-5.3mw/cm, centrifugation, is dried to obtain material a.
Preferably, in S2, material a, polylactic acid, polyethylene is added and stirs 2-4h, whipping temp is 45-65 DEG C.
Preferably, in S2, it is warming up to 92-98 DEG C of mixing 10-18min, revolving speed is 120-200r/min in internal mixing pass.
Preferably, in S2, drying temperature is 60-70 DEG C, drying time 20-40h,
Preferably, in S2, starch, water, material a, polylactic acid, the weight ratio of polyethylene are 30-50:40-80:2-6:1-4: 1-4。
Preferably, in S3, material b, 9,10- octyl epoxy stearate, wheat straw fiber, white carbon black, Yi Laishi, mica powder, Silane coupling agent, hyaluronic acid, polyethylene glycol, epoxidized soybean oil, dibutyl tin dilaurate, UV531 UV resistant agent weight Amount is than being 40-60:0.2-1:12-20:4-10:1-5:2-8:0.5-1.2:1-2:0.6-1.5:1-2:0 .1-0.5:1-2.
A kind of degradable environment protection paper-plastic bag proposed by the present invention, using the preparation method system of above-mentioned degradable environment protection paper-plastic bag ?.
In S1 of the present invention, using butyl methacrylate as monomer, methacrylic acid list blocks polyethylene glycol as reactivity Macromolecule by ultraviolet lighting is polymerize to obtain surface band functional under the cooperation of 2,2- dimethoxy -2- phenyl acetophenone The monodisperse material a of macromolecular chain；In S2, material a is compounded with polylactic acid, polyethylene, and mutual bond strength is high, is coated on Starch surface can significantly reduce starch water absorbent surface intensity；In S3, material b is in molten condition in 9,10- octyl epoxy stearate Cooperation under it is high with the interface compatibility of wheat straw fiber, white carbon black, Yi Laishi, mica powder, under the cooperation of silane coupling agent It fully dispersed can be combined wherein and in the form of ionic bond, stability is good, and waterproof performance further enhances, and polyethylene glycol, ring Oxygen soybean oil, dibutyl tin dilaurate can effectively improve the compatibility of material b, and waterproof performance further enhances.
Gained paper plastic bag of the invention is impermeable in 70 DEG C of constant temperature, the processing 200h of humidity 90%, and strength retention can Up to 80%, there is very strong waterproofness, have biodegradability, is finally converted under microbial metabolism effect in the soil CO2And H2O will not be caused environment pollution, and be expected to be widely used as new packaging material.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of preparation method of degradable environment protection paper-plastic bag, includes the following steps:
S1, by 22kg concentration be 18wt% 2,2- dimethoxy -2- phenyl acetophenone ethanol solution, 12kg concentration be The methacrylic acid list sealing end Aqueous Solutions of Polyethylene Glycol of 12wt%, the mixing of 2kg butyl methacrylate, stirred under nitrogen atmosphere 16min, ultraviolet irradiation 1h, irradiation intensity 5.3mw/cm, centrifugation are dried to obtain material a；
S2, by 30kg starch dissolution in 80kg water, be added 2kg material a, 4kg polylactic acid, 1kg polyethylene stir 4h, stir Mixing temperature is 45 DEG C, is warming up to 98 DEG C of mixing 10min, and revolving speed is 200r/min in internal mixing pass, be dry, pulverize, 60 DEG C of dryings 40h obtains material b；
S3,40kg material b is heated to molten condition, 1kg9 is sequentially added under stirring, 10- epoxystearic acid is pungent Ester, 12kg wheat straw fiber, 10kg white carbon black, 1kg she come stone, 8kg mica powder, 0.5kg silane coupling agent, 2kg hyaluronic acid, 0.6kg polyethylene glycol, 2kg epoxidized soybean oil, 0.1kg dibutyl tin dilaurate, 2kgUV531 UV resistant agent, stirring are equal Even, extrusion obtains film, and film is covered in brown paper surface and obtains degradable environment protection paper-plastic bag.
Embodiment 2
A kind of preparation method of degradable environment protection paper-plastic bag, includes the following steps:
S1, by 36kg concentration be 10wt% 2,2- dimethoxy -2- phenyl acetophenone ethanol solution, 22kg concentration be The methacrylic acid list sealing end Aqueous Solutions of Polyethylene Glycol of 10wt%, the mixing of 8kg butyl methacrylate, stirred under nitrogen atmosphere 10min, ultraviolet irradiation 2h, irradiation intensity 4.9mw/cm, centrifugation are dried to obtain material a；
S2, by 50kg starch dissolution in 40kg water, be added 6kg material a, 1kg polylactic acid, 4kg polyethylene stir 2h, stir Mixing temperature is 65 DEG C, is warming up to 92 DEG C of mixing 18min, and revolving speed is 120r/min in internal mixing pass, be dry, pulverize, 70 DEG C of dryings 20h obtains material b；
S3,60kg material b is heated to molten condition, 0.2kg9,10- epoxystearic acid is sequentially added under stirring Monooctyl ester, 20kg wheat straw fiber, 4kg white carbon black, 5kg she come stone, 2kg mica powder, 1.2kg silane coupling agent, 1kg hyaluronic acid, 1.5kg polyethylene glycol, 1kg epoxidized soybean oil, 0.5kg dibutyl tin dilaurate, 1kgUV531 UV resistant agent, stirring are equal Even, extrusion obtains film, and film is covered in brown paper surface and obtains degradable environment protection paper-plastic bag.
Embodiment 3
A kind of preparation method of degradable environment protection paper-plastic bag, includes the following steps:
S1, by 26kg concentration be 16wt% 2,2- dimethoxy -2- phenyl acetophenone ethanol solution, 14kg concentration be The methacrylic acid list sealing end Aqueous Solutions of Polyethylene Glycol of 11.5wt%, the mixing of 4kg butyl methacrylate, stirred under nitrogen atmosphere 14min, ultraviolet irradiation 1.3h, irradiation intensity 5.2mw/cm, centrifugation are dried to obtain material a；
S2, by 35kg starch dissolution in 70kg water, be added 3kg material a, 3kg polylactic acid, 2kg polyethylene stir 3.5h, Whipping temp is 50 DEG C, is warming up to 96 DEG C of mixing 12min, and revolving speed is 180r/min in internal mixing pass, be dry, pulverize, and 63 DEG C dry Dry 35h obtains material b；
S3,45kg material b is heated to molten condition, 0.8kg9,10- epoxystearic acid is sequentially added under stirring Monooctyl ester, 14kg wheat straw fiber, 8kg white carbon black, 2kg she come stone, 6kg mica powder, 0.6kg silane coupling agent, 1.7kg hyalomitome Acid, 0.8kg polyethylene glycol, 1.7kg epoxidized soybean oil, 0.2kg dibutyl tin dilaurate, 1.7kgUV531 UV resistant agent, It stirs evenly, extrusion obtains film, and film is covered in brown paper surface and obtains degradable environment protection paper-plastic bag.
Embodiment 4
A kind of preparation method of degradable environment protection paper-plastic bag, includes the following steps:
S1, by 32kg concentration be 12wt% 2,2- dimethoxy -2- phenyl acetophenone ethanol solution, 20kg concentration be Methacrylic acid list sealing end Aqueous Solutions of Polyethylene Glycol, the 4-6kg butyl methacrylate of 10.5wt% mixes, and stirs under nitrogen protection 14min, ultraviolet irradiation 1.3h, irradiation intensity 5.2mw/cm are mixed, is centrifuged, is dried to obtain material a；
S2, by 35kg starch dissolution in 70kg water, be added 3kg material a, 3kg polylactic acid, 2kg polyethylene stir 3.5h, Whipping temp is 50 DEG C, is warming up to 96 DEG C of mixing 12min, and revolving speed is 180r/min in internal mixing pass, be dry, pulverize, and 63 DEG C dry Dry 35h obtains material b；
S3,45kg material b is heated to molten condition, 0.8kg9,10- epoxystearic acid is sequentially added under stirring Monooctyl ester, 14kg wheat straw fiber, 8kg white carbon black, 2kg she come stone, 6kg mica powder, 0.6kg silane coupling agent, 1.7kg hyalomitome Acid, 0.8kg polyethylene glycol, 1.7kg epoxidized soybean oil, 0.2kg dibutyl tin dilaurate, 1.7kgUV531 UV resistant agent, It stirs evenly, extrusion obtains film, and film is covered in brown paper surface and obtains degradable environment protection paper-plastic bag.
Embodiment 5
A kind of preparation method of degradable environment protection paper-plastic bag, includes the following steps:
S1, by 29kg concentration be 14wt% 2,2- dimethoxy -2- phenyl acetophenone ethanol solution, 17kg concentration be The methacrylic acid list sealing end Aqueous Solutions of Polyethylene Glycol of 11wt%, the mixing of 5kg butyl methacrylate, stirred under nitrogen atmosphere 13min, ultraviolet irradiation 1.5h, irradiation intensity 5.1mw/cm, centrifugation are dried to obtain material a；
S2, by 40kg starch dissolution in 60kg water, be added 4kg material a, 2.5kg polylactic acid, 2.5kg polyethylene stirring 3h, whipping temp are 55 DEG C, are warming up to 95 DEG C of mixing 14min, and revolving speed is 160r/min in internal mixing pass, be dry, pulverize, 65 DEG C Dry 30h, obtains material b；
S3,50kg material b is heated to molten condition, 0.6kg9,10- epoxystearic acid is sequentially added under stirring Monooctyl ester, 16kg wheat straw fiber, 7kg white carbon black, 3kg she come stone, 5kg mica powder, 0.8kg silane coupling agent, 1.5kg hyalomitome Acid, 1kg polyethylene glycol, 1.5kg epoxidized soybean oil, 0.3kg dibutyl tin dilaurate, 1.5kgUV531 UV resistant agent, are stirred It mixes uniformly, extrusion obtains film, and film is covered in brown paper surface and obtains degradable environment protection paper-plastic bag.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (9)

1. a kind of preparation method of degradable environment protection paper-plastic bag, which comprises the steps of:
S1,2,2- dimethoxy -2- phenyl acetophenone ethanol solution, methacrylic acid list are blocked into Aqueous Solutions of Polyethylene Glycol, first The mixing of base butyl acrylate, stirred under nitrogen atmosphere, ultraviolet irradiation, centrifugation are dried to obtain material a；
S2, by starch dissolution in water, material a, polylactic acid, polyethylene stirring is added, heating is kneaded, dry, pulverize, dry To material b；
S3, material b is heated to molten condition, it is fine that 9,10- octyl epoxy stearate, wheat straw is sequentially added under stirring Dimension, white carbon black, Yi Laishi, mica powder, silane coupling agent, hyaluronic acid, polyethylene glycol, epoxidized soybean oil, two fourth of tin dilaurate Ji Xi, UV531 UV resistant agent, stir evenly, and extrusion obtains film, and film is covered in brown paper surface and obtains degradable ring Protect paper plastic bag.
2. the preparation method of degradable environment protection paper-plastic bag according to claim 1, which is characterized in that in S1,2,2- dimethoxies The weight ratio of base -2- phenyl acetophenone ethanol solution, methacrylic acid list sealing end Aqueous Solutions of Polyethylene Glycol, butyl methacrylate For 22-36:12-22:2-8,2,2- dimethoxy -2- phenyl acetophenone ethanol solution concentrations are 10-18wt%, methacrylic acid Single sealing end Aqueous Solutions of Polyethylene Glycol concentration is 10-12wt%.
3. the preparation method of degradable environment protection paper-plastic bag according to claim 1 or claim 2, which is characterized in that in S1, by 2,2- bis- Methoxyl group -2- phenyl acetophenone ethanol solution, methacrylic acid list sealing end Aqueous Solutions of Polyethylene Glycol, butyl methacrylate are mixed It closes, stirred under nitrogen atmosphere 10-16min, ultraviolet irradiation 1-2h, irradiation intensity 4.9-5.3mw/cm, centrifugation is dried to obtain object Expect a.
4. the preparation method of any one of -3 degradable environment protection paper-plastic bags according to claim 1, which is characterized in that in S2, add Enter material a, polylactic acid, polyethylene stirring 2-4h, whipping temp is 45-65 DEG C.
5. the preparation method of any one of -4 degradable environment protection paper-plastic bags according to claim 1, which is characterized in that in S2, rise Temperature is to 92-98 DEG C of mixing 10-18min, and revolving speed is 120-200r/min in internal mixing pass.
6. the preparation method of any one of -5 degradable environment protection paper-plastic bags according to claim 1, which is characterized in that in S2, do Dry temperature is 60-70 DEG C, drying time 20-40h.
7. the preparation method of any one of -6 degradable environment protection paper-plastic bags according to claim 1, which is characterized in that in S2, form sediment Powder, water, material a, polylactic acid, the weight ratio of polyethylene are 30-50:40-80:2-6:1-4:1-4.
8. the preparation method of any one of -7 degradable environment protection paper-plastic bags according to claim 1, which is characterized in that in S3, object Expect b, epoxystearic acid monooctyl ester, wheat straw fiber, white carbon black, Yi Laishi, mica powder, silane coupling agent, hyaluronic acid, gather Ethylene glycol, epoxidized soybean oil, dibutyl tin dilaurate, UV531 UV resistant agent weight ratio be 40-60:0.2-1:12- 20:4-10:1-5:2-8:0.5-1.2:1-2:0.6-1.5:1-2:0.1-0.5:1-2.
9. a kind of degradable environment protection paper-plastic bag, which is characterized in that using any one of the claim 1-8 degradable environment protection paper-plastic The preparation method of bag is made.
CN201811032174.0A 2018-09-05 2018-09-05 A kind of degradable environment protection paper-plastic bag and preparation method thereof Withdrawn CN109293996A (en)

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Application publication date: 20190201