CN108978352A - A kind of durable, degradable environmentally-friendly packing box paper - Google Patents
A kind of durable, degradable environmentally-friendly packing box paper Download PDFInfo
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- CN108978352A CN108978352A CN201810760698.5A CN201810760698A CN108978352A CN 108978352 A CN108978352 A CN 108978352A CN 201810760698 A CN201810760698 A CN 201810760698A CN 108978352 A CN108978352 A CN 108978352A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/007—Modification of pulp properties by mechanical or physical means
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/60—Waxes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/65—Acid compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
The present invention relates to a kind of durable, degradable environmentally-friendly packing box paper, and preparation method includes the following steps: (1), preparing stalk slurry；(2), stalk slurry is modified；(3), paper pulp is prepared；(4), papermaking；The present invention is improved by the raw material to wrapping paper, it is prepared by primary raw material of rice straw, agricultural waste material can be utilized, the pollution for promoting rice straw, has been greatly reduced the cost of packing case paper, simultaneously, when to feedstock processing, by repeatedly improving intensity, stability, wearability and the heat resistance of packing case paper in the case where making packing case material that there is good degradability to the modification of raw material.By the combination of stalk slurry and modified clay, polylactic acid, the degradation speed for changing polylactic acid degradable material is too fast, the defect of heat resistance difference, the range for improving the service life of packing case and using.
Description
Technical field
The invention belongs to environment-friendly package material fields, and in particular to a kind of durable, degradable environmentally-friendly packing box paper.
Background technique
Polylactic acid (PLA) is a kind of novel biology base and recyclable organism degradable material, is provided using reproducible plant
The starch raw material that source (such as the not plump shell of cereal, straw, straw) is proposed is made.Starch raw material obtains glucose via saccharification, then by
The lactic acid of high-purity is made in glucose and certain strain fermentation, then the poly- cream of certain molecular weight is synthesized by chemical synthesis process
Acid.It, can be degradable under given conditions by microorganism in nature after use with good biodegradability, finally
Carbon dioxide and water are generated, free from environmental pollution, this is highly beneficial to protection environment, is generally acknowledged environment-friendly material.
Although polylactic acid has good degradability, its degradation speed is too fast, can not use, cause for a long time
The service life of product is short, and what is used is range-restricted larger.China's rice straw yield is huge, and is difficult to be utilized, and causes
The waste of vast resources, although now with the method using rice straw papermaking, at high cost, and the straw of stalk papermaking
Stalk paper lacking toughness, the effect used is poor, can not reach requirement as packing case paper performance.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods of durable, degradable environmentally-friendly packing box paper, by packaging
The raw material and preparation process of case paper are adjusted, and obtain a kind of degradable wrapping paper of good combination property.
The invention is realized by the following technical scheme:
A kind of durable, degradable environmentally-friendly packing box paper, preparation method includes the following steps:
(1), stalk slurry is prepared；
A, the sodium bicarbonate solution immersion treatment 20-48h for the use of mass fraction being afterwards completely 2.5% by rice straw surface clean,
Then rice straw is pulled out, impregnates 10-15min using the tannic acid solution that mass fraction is 0.5%；
B, monofilament is chosen, monofilament is uniformly mixed with fresh bed-silt by weight 1:15-20, is handled at 18-25 DEG C
Then 48-72h washes off the bed-silt on monofilament, monofilament is then impregnated 12- using the hydrochloric acid solution that mass fraction is 6%
18min takes out；
C, the rice straw handled well in step A and step B is mixed with monofilament by weight 12-15:1, using beater into
Row mashing, obtains stalk slurry；
(2), stalk slurry is modified；
The PH for the stalk slurry that step (1) obtains is adjusted to 7.5-8, then by stalk slurry and treatment fluid by weight 1:2-
2.4 ratio mixing handles 30-50min using ultrasonic oscillation after mixing, and filtering obtains modified straw slurry, should
Treatment fluid is prepared from the following raw materials by weight: 10-12 parts of glycerol, 2.2-3 parts of acetone, 1.8-3 parts of calcium acetate, polyacrylamide
2.2-3 parts, 1.5-2.6 parts of ethoxylated dodecyl alcohol, 3-5 parts of tannic acid, 60-80 parts of water；
(3), paper pulp is prepared；
45-55 parts of modified straw slurry, 15-18 parts of the clay, 26-32 parts of polylactic acid, hexylene glycol 1- that will be prepared in step (2)
1.5 parts, 2-3 parts of polyethylene glycol, above-mentioned raw materials are mixed, are sized mixing, paper pulp is prepared into；
(4), papermaking；
Paper pulp prepared by step (3) is prepared into packing case paper.
Preferably, the length of fiber is that the fiber of 0.8-1.6mm accounts for the ratio of fiber in stalk slurry in the step (1)
For 45-68%.
Preferably, in the step (2) in the weight ratio of stalk slurry and treatment fluid the weight of stalk slurry with oven dry stock
The poidometer of material.
Preferably, the relative molecular mass of the polyethylene glycol is 1500-2000.
Preferably, in the step (3) in each component ratio, modified straw slurry is with OD wt. basis.
Preferably, the clay passes through modification, and the modification processing method of clay is as follows:
(1), it takes clay drying, crush, cross 80 meshes；
(2), the nitric acid that the sulfuric acid and mass fraction that the clay for handling step (1) well is 15% using mass fraction are 10% is by body
Then mixed liquid dipping processing of the product than 3:1 is cleaned until weight no longer mitigates using deionized water, then will be after cleaning
Clay isothermal holding 1-2h at 560-600 DEG C；
(3), the clay that step (2) is handled well is mixed with titanate coupling agent by weight 80-85:1, uses high speed disperser
Dispersed, titanate coupling agent is made to be uniformly dispersed in clay；
(4), clay, chlorinated paraffin and the graft starch for handling step (3) well are by weight 5-7:0.05:1 with 1500-1800
Rev/min mixing, be ultrasonically treated 10-15min, obtain modified clay.
Further, the titanate coupling agent is titanate coupling agent TMC-311 or titanate coupling agent TMC-
TTS。
Further, the graft starch is starch-acrylate graft copolymer.
The beating degree of paper pulp is 22-25 ° of SR in the present invention.
It is mixed with beating in the present invention using rice straw and monofilament and stalk slurry is made, remain the paper of rice straw preparation
The high-hydroscopicity of slurry, and the toughening effect to straw pulp can be played by the addition of monofilament, improve rice straw and prepares paper
The toughness of slurry, and rice straw and monofilament mixed, be beaten before by special processing, rice straw and palm fibre can be made
Silk has the stability of better compatibility and crosslinking, promotes the toughness of paper pulp.The paper pulp accomplished fluently is modified processing, is located
When reason, the modified further dispersion performance for promoting rice straw and monofilament, and by modified paper pulp and polylactic acid, change
The compatibility of the ingredients such as property clay and the intensity of combination are bigger, promote the tensile strength of the transverse direction and longitudinal direction of paper, machine-shaping
Speed also faster, promotes the speed of production.Modified clay is added in packing case paper material in the application, is able to ascend carton
Intensity, heat resistance and wearability improve the activity on clay surface, and graft starch by being modified processing to clay
The intensity being able to ascend in conjunction with paper pulp other compositions can also make carton have good degradability, after treatment
The temperature resistance of wrapping paper can be more preferable, can use at -30-80 DEG C, and 200h or more is used continuously under 50 DEG C of high temperature, no
It will appear apparent strength reduction.
Beneficial effects of the present invention: the present invention is improved by the raw material to wrapping paper, is main former with rice straw
Material prepared, can utilize agricultural waste material, promote the pollution of rice straw, be greatly reduced packing case paper at
This, meanwhile, when to feedstock processing, by repeatedly to the modification of raw material, there is packing case material degradable well
In the case where performance, intensity, stability, wearability and the heat resistance of packing case paper are improved.By stalk slurry and it is modified glutinous
The combination of soil, polylactic acid, the degradation speed for changing polylactic acid degradable material is too fast, and the defect of heat resistance difference improves
The service life of packing case and the range used.
The dosage of acidity or alkaline water in the present processes in pulp production is relatively fewer, and can return
Recycling is received, reduces the generation of the waste water in pulp production, pulp production per ton only needs to discharge 10- after processing
15m3, relative to traditional stalk papermaking process, there is significant reduction, the feature of environmental protection is obviously improved.
Specific embodiment
Embodiment 1
A kind of durable, degradable environmentally-friendly packing box paper, preparation method includes the following steps:
(1), stalk slurry is prepared；
A, the sodium bicarbonate solution immersion treatment 25h for the use of mass fraction being afterwards completely 2.5% by rice straw surface clean, so
Rice straw is pulled out afterwards, impregnates 12-14min using the tannic acid solution that mass fraction is 0.5%；
B, monofilament is chosen, monofilament is uniformly mixed with fresh bed-silt by weight 1:18, handles 60h at 22-24 DEG C,
Then the bed-silt on monofilament is washed off, monofilament is then impregnated into 15min using the hydrochloric acid solution that mass fraction is 6%, is taken out；
C, the rice straw handled well in step A and step B is mixed with monofilament by weight 13.5:1, is carried out using beater
Mashing, obtains stalk slurry；
(2), stalk slurry is modified；
The PH for the stalk slurry that step (1) obtains is adjusted to 7.5-8, then by stalk slurry and treatment fluid by weight 1:2.2
Ratio mixing, after mixing, using ultrasonic oscillation handle 40min, filtering, obtain modified straw slurry, the treatment fluid
It is prepared from the following raw materials by weight: 10 parts of glycerol, 2.6 parts of acetone, 2.2 parts of calcium acetate, 2.6 parts of polyacrylamide, laruyl alcohol
2.2 parts of polyoxyethylene ether, 3.5 parts of tannic acid, 75 parts of water；
(3), paper pulp is prepared；
50 parts of modified straw slurry, 16 parts of the clay, 28 parts of polylactic acid, 1.4 parts of hexylene glycol, poly- second two that will be prepared in step (2)
2 parts of alcohol, above-mentioned raw materials are mixed, are sized mixing, paper pulp is prepared into；
(4), papermaking；
Paper pulp prepared by step (3) is prepared into packing case paper.
Preferably, the length of fiber is that the fiber of 0.8-1.6mm accounts for the ratio of fiber in stalk slurry in the step (1)
For 50-60%.
Preferably, in the step (2) in the weight ratio of stalk slurry and treatment fluid the weight of stalk slurry with oven dry stock
The poidometer of material.
Preferably, the relative molecular mass of the polyethylene glycol is 1500-2000.
Preferably, in the step (3) in each component ratio, modified straw slurry is with OD wt. basis.
Preferably, the clay passes through modification, and the modification processing method of clay is as follows:
(1), it takes clay drying, crush, cross 80 meshes；
(2), the nitric acid that the sulfuric acid and mass fraction that the clay for handling step (1) well is 15% using mass fraction are 10% is by body
Then mixed liquid dipping processing of the product than 3:1 is cleaned until weight no longer mitigates using deionized water, then will be after cleaning
Clay isothermal holding 1.5h at 586-595 DEG C；
(3), the clay that step (2) is handled well is mixed with titanate coupling agent by weight 82:1, using high speed disperser into
Row dispersion, makes titanate coupling agent be uniformly dispersed in clay；
(4), clay, chlorinated paraffin and the graft starch for handling step (3) well are by weight 6:0.05:1 with 1800 revs/min
Mixing is ultrasonically treated 12min, obtains modified clay.
Further, the titanate coupling agent is titanate coupling agent TMC-311 or titanate coupling agent TMC-
TTS。
Further, the graft starch is starch-acrylate graft copolymer.
Embodiment 2
A kind of durable, degradable environmentally-friendly packing box paper, preparation method includes the following steps:
(1), stalk slurry is prepared；
A, the sodium bicarbonate solution immersion treatment 30h for the use of mass fraction being afterwards completely 2.5% by rice straw surface clean, so
Rice straw is pulled out afterwards, impregnates 12min using the tannic acid solution that mass fraction is 0.5%；
B, monofilament is chosen, monofilament is uniformly mixed with fresh bed-silt by weight 1:17,55h is handled at 22 DEG C, so
The bed-silt on monofilament is washed off afterwards, and monofilament is then impregnated into 15min using the hydrochloric acid solution that mass fraction is 6%, is taken out；
C, the rice straw handled well in step A and step B is mixed with monofilament by weight 14:1, is beaten using beater
Slurry, obtains stalk slurry；
(2), stalk slurry is modified；
The PH for the stalk slurry that step (1) obtains is adjusted to 7.8, then by stalk slurry and treatment fluid by weight 1:2.3's
Ratio mixing handles 45min using ultrasonic oscillation, filtering obtains modified straw slurry, which presses after mixing
Poidometer is prepared from the following raw materials: 11 parts of glycerol, 2.8 parts of acetone, 2 parts of calcium acetate, 2.5 parts of polyacrylamide, laruyl alcohol polyoxy
2.4 parts of vinethene, 4.2 parts of tannic acid, 70 parts of water；
(3), paper pulp is prepared；
52 parts of modified straw slurry, 17 parts of the clay, 27 parts of polylactic acid, 1.4 parts of hexylene glycol, poly- second two that will be prepared in step (2)
2.5 parts of alcohol, above-mentioned raw materials are mixed, are sized mixing, paper pulp is prepared into；
(4), papermaking；
Paper pulp prepared by step (3) is prepared into packing case paper.
Preferably, the length of fiber is that the fiber of 0.8-1.6mm accounts for the ratio of fiber in stalk slurry in the step (1)
It is 62%.
Preferably, in the step (2) in the weight ratio of stalk slurry and treatment fluid the weight of stalk slurry with oven dry stock
The poidometer of material.
Preferably, the relative molecular mass of the polyethylene glycol is 1500-2000.
Preferably, in the step (3) in each component ratio, modified straw slurry is with OD wt. basis.
Preferably, the clay passes through modification, and the modification processing method of clay is as follows:
(1), it takes clay drying, crush, cross 80 meshes；
(2), the nitric acid that the sulfuric acid and mass fraction that the clay for handling step (1) well is 15% using mass fraction are 10% is by body
Then mixed liquid dipping processing of the product than 3:1 is cleaned until weight no longer mitigates using deionized water, then will be after cleaning
Clay isothermal holding 1.5h at 590 DEG C；
(3), the clay that step (2) is handled well is mixed with titanate coupling agent by weight 80:1, using high speed disperser into
Row dispersion, makes titanate coupling agent be uniformly dispersed in clay；
(4), clay, chlorinated paraffin and the graft starch for handling step (3) well are by weight 6.5:0.05:1 with 1750 revs/min
Clock mixing, is ultrasonically treated 10-15min, obtains modified clay.
Further, the titanate coupling agent is titanate coupling agent TMC-311 or titanate coupling agent TMC-
TTS。
Further, the graft starch is starch-acrylate graft copolymer.
Embodiment 3
The preparation method of packing case paper such as embodiment 1, still, compared with Example 1, clay is without modification.
Embodiment 4
The preparation method of packing case paper such as embodiment 2, still, compared with Example 2, clay is without modification.
Comparative example 1
Compared with Example 1, when prepared by stalk slurry, monofilament is not added in raw material.
Comparative example 2
Compared with Example 1, processing is not modified to stalk slurry.
Comparative example 3
Compared with Example 1, when preparing paper pulp, clay is not added.
Comparative example 4
The cardboard of traditional wood pulp preparation.
In order to verify the performance of packing case paper in the application, packaging is prepared into using the method for each embodiment and comparative example
The specification of paper, each group wrapping paper is consistent, the performance of the packing case paper of test each group method preparation, as a result such as table 1.
Table 1.
As shown in Table 1, the mechanical property of the packing case paper prepared in the application can reach country and professional standard or more,
Moreover, the performance of packing case paper can be obviously improved, the application's after the mode in the application is modified raw material
Packing case paper has better folding resistance and wearability, greatly improves the access times of packing case paper, makes packing case paper can
To repeatedly use, the feature of environmental protection is promoted.
In order to verify the decomposable effect of wrapping paper of the invention, pattern made of each embodiment and comparative example is chosen, is cut out
It is cut into the fritter of 10*10cm, mixed bacteria is accessed, is cultivated at 25 DEG C, situation is decomposed in observation at times, as a result such as table 2.
Table 2.
As shown in Table 2, the decomposition rate of the packing case paper of the application method preparation in the early stage is extremely slow, with the increasing of time
Adding, the speed of decomposition is also obviously accelerated, and it has degraded in 200h, can guarantee in the normal use process of carton so substantially,
It avoids carton from degrading, to extend the time that uses of Packaging Box, on the other hand, in germs collect, divides extending
It in the case where solving the time, can almost degrade completely again in 200h, be not in the problem of can not degrading for a long time.
Claims (8)
1. a kind of durable, degradable environmentally-friendly packing box paper, which is characterized in that prepared using following methods, specific preparation method
The following steps are included:
(1), stalk slurry is prepared；
A, the sodium bicarbonate solution immersion treatment 20-48h for the use of mass fraction being afterwards completely 2.5% by rice straw surface clean,
Then rice straw is pulled out, impregnates 10-15min using the tannic acid solution that mass fraction is 0.5%；
B, monofilament is chosen, monofilament is uniformly mixed with fresh bed-silt by weight 1:15-20, is handled at 18-25 DEG C
Then 48-72h washes off the bed-silt on monofilament, monofilament is then impregnated 12- using the hydrochloric acid solution that mass fraction is 6%
18min takes out；
C, the rice straw handled well in step A and step B is mixed with monofilament by weight 12-15:1, using beater into
Row mashing, obtains stalk slurry；
(2), stalk slurry is modified；
The PH for the stalk slurry that step (1) obtains is adjusted to 7.5-8, then by stalk slurry and treatment fluid by weight 1:2-
2.4 ratio mixing handles 30-50min using ultrasonic oscillation after mixing, and filtering obtains modified straw slurry, should
Treatment fluid is prepared from the following raw materials by weight: 10-12 parts of glycerol, 2.2-3 parts of acetone, 1.8-3 parts of calcium acetate, polyacrylamide
2.2-3 parts, 1.5-2.6 parts of ethoxylated dodecyl alcohol, 3-5 parts of tannic acid, 60-80 parts of water；
(3), paper pulp is prepared；
45-55 parts of modified straw slurry, 15-18 parts of the clay, 26-32 parts of polylactic acid, hexylene glycol 1- that will be prepared in step (2)
1.5 parts, 2-3 parts of polyethylene glycol, above-mentioned raw materials are mixed, are sized mixing, paper pulp is prepared into；
(4), papermaking；
Paper pulp prepared by step (3) is prepared into packing case paper.
2. durable, the degradable environmentally-friendly packing box paper of one kind according to claim 1, it is characterised in that: the step (1)
The ratio that the fiber that the length of fiber is 0.8-1.6mm in middle stalk slurry accounts for fiber is 45-68%.
3. durable, the degradable environmentally-friendly packing box paper of one kind according to claim 1, it is characterised in that: the step (2)
The weight of stalk slurry is in terms of the weight of over dry slurry in the weight ratio of middle stalk slurry and treatment fluid.
4. durable, the degradable environmentally-friendly packing box paper of one kind according to claim 1, it is characterised in that: the poly- second two
The relative molecular mass of alcohol is 1500-2000.
5. durable, the degradable environmentally-friendly packing box paper of one kind according to claim 1, it is characterised in that: the step (3)
In in each component ratio, modified straw slurry is with OD wt. basis.
6. durable, the degradable environmentally-friendly packing box paper of one kind described in one of -5 according to claim 1, it is characterised in that: described
Clay pass through modification, the modification processing method of clay is as follows:
(1), it takes clay drying, crush, cross 80 meshes；
(2), the nitric acid that the sulfuric acid and mass fraction that the clay for handling step (1) well is 15% using mass fraction are 10% is by body
Then mixed liquid dipping processing of the product than 3:1 is cleaned until weight no longer mitigates using deionized water, then will be after cleaning
Clay isothermal holding 1-2h at 560-600 DEG C；
(3), the clay that step (2) is handled well is mixed with titanate coupling agent by weight 80-85:1, uses high speed disperser
Dispersed, titanate coupling agent is made to be uniformly dispersed in clay；
(4), clay, chlorinated paraffin and the graft starch for handling step (3) well are by weight 5-7:0.05:1 with 1500-1800
Rev/min mixing, be ultrasonically treated 10-15min, obtain modified clay.
7. durable, the degradable environmentally-friendly packing box paper of one kind according to claim 6, it is characterised in that: the titanate esters
Coupling agent is titanate coupling agent TMC-311 or titanate coupling agent TMC-TTS.
8. durable, the degradable environmentally-friendly packing box paper of one kind according to claim 6, it is characterised in that: the grafting is formed sediment
Powder is starch-acrylate graft copolymer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110644278A (en) * | 2019-10-22 | 2020-01-03 | 新疆弘瑞达纤维有限公司 | Environment-friendly paper and preparation method thereof |
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| CN105219004A (en) * | 2015-11-05 | 2016-01-06 | 蒋金香 | A kind of degradable plant fibre paper and preparation method thereof |
| CN105219045A (en) * | 2015-11-05 | 2016-01-06 | 徐�明 | A kind of Degradable environment protection composite plant fibrous paper and preparation method thereof |
| CN106009538A (en) * | 2016-05-30 | 2016-10-12 | 广东金明精机股份有限公司 | Highly-filled, low-specific-gravity and biodegradable corrugated board and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219004A (en) * | 2015-11-05 | 2016-01-06 | 蒋金香 | A kind of degradable plant fibre paper and preparation method thereof |
| CN105219045A (en) * | 2015-11-05 | 2016-01-06 | 徐�明 | A kind of Degradable environment protection composite plant fibrous paper and preparation method thereof |
| CN106009538A (en) * | 2016-05-30 | 2016-10-12 | 广东金明精机股份有限公司 | Highly-filled, low-specific-gravity and biodegradable corrugated board and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110644278A (en) * | 2019-10-22 | 2020-01-03 | 新疆弘瑞达纤维有限公司 | Environment-friendly paper and preparation method thereof |
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Application publication date: 20181211 |