CN109096546A - A method of high performance plastic film is produced using Cellulose nanocrystal body - Google Patents

A method of high performance plastic film is produced using Cellulose nanocrystal body Download PDF

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CN109096546A
CN109096546A CN201810841005.5A CN201810841005A CN109096546A CN 109096546 A CN109096546 A CN 109096546A CN 201810841005 A CN201810841005 A CN 201810841005A CN 109096546 A CN109096546 A CN 109096546A
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suspension
obtains
cellulose nanocrystal
plastic film
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张守玉
吴渊默
李�昊
江锋浩
张帆
张一帆
王才威
黄小河
曹忠耀
宋晓冰
陈陆剑
陶欣
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University of Shanghai for Science and Technology
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/02Cellulose; Modified cellulose
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2403/00Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2403/02Starch; Degradation products thereof, e.g. dextrin
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2429/00Characterised 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 at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2429/02Homopolymers or copolymers of unsaturated alcohols
    • C08J2429/04Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

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  • Manufacturing & Machinery (AREA)
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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

The invention discloses a kind of methods using Cellulose nanocrystal body production high performance plastic film, include the following steps: step 1, carry out the pretreatment of sour water solution to velveteen, obtain Cellulose nanocrystal liquid suspension;Step 2, the PVA powder of the first mass is gelatinized and is added the starch powder of the second mass in the hot water of the first volume of the first temperature, mixing at the first time, obtains mixed liquor I;Step 3, the Cellulose nanocrystal liquid suspension that the concentration of the second volume is 3%-20% is added in mixed liquor I, obtains suspension I;Step 4, suspension I was stirred under the first mixing speed for the second time, obtains suspension II;Step 5, suspension II is heated to the third time in the water-bath of second temperature, obtains suspension II I;Step 6, suspension II I is poured into culture dish, is removed after dry first drying time under the first drying temperature, obtains plastic film.

Description

A method of high performance plastic film is produced using Cellulose nanocrystal body
Technical field
The invention belongs to Material Fields, and in particular to a kind of to produce high performance plastic film using Cellulose nanocrystal body Method.
Background technique
Nowadays, the cost of natural gas is rising, and fossil fuel is exhausting, and not biodegradable plastics are being made At serious pollution, it is therefore desirable to which environmentally friendly sustainable material is as viable economically and sustainable alternative solution. Starch is the most promising material of biodegradable polymers due to having the rich ability for forming continuous matrix of availability, low cost One of material.PVAC polyvinylalcohol has good as the biodegradable and maximum synthetic polymer produced in the world Mechanical performance and film forming.PVA can be mixed with starch to be made it have more economy and increases its biodegradable.But The major defect of PVA/ starch film is the hydroxyl as present in both starch and PVA, and water preventing ability is poor.It is therefore desirable to find A kind of new method is modified PVA/ starch film, and the mechanicalness of blend film is further increased while improving its block-water performance Energy.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of raw using Cellulose nanocrystal body The method for producing high performance plastic film.
The present invention provides a kind of methods using Cellulose nanocrystal body production high performance plastic film, have such Feature includes the following steps:
Step 1, the pretreatment of sour water solution is carried out to velveteen, obtains Cellulose nanocrystal liquid suspension;
Step 2, the PVA powder of the first mass is gelatinized in the hot water of the first volume of the first temperature and the second matter is added The starch powder of amount, mixing at the first time, obtain mixed liquor I;
Step 3, the Cellulose nanocrystal liquid suspension that the concentration of the second volume is 3%-20% is added in mixed liquor I, Obtain suspension I;
Step 4, suspension I was stirred under the first mixing speed for the second time, obtains suspension II;
Step 5, suspension II is heated to the third time in the water-bath of second temperature, obtains suspension II I;
Step 6, suspension II I is poured into culture dish, is shelled after dry first drying time under the first drying temperature From obtaining plastic film.
In the method provided by the invention using Cellulose nanocrystal body production high performance plastic film, can also have Such feature: where the sour water solution pretreatment in step 1 includes following sub-step:
Step 1-1 grinds velveteen with scissors, obtains fine grained I;
Fine grained I is impregnated the first soaking time at room temperature in the NaOH solution of the first concentration, then used by step 1-2 Water washing is distilled, the fine grained II that obtains that treated;
Fine grained II is added in the sulfuric acid solution of the second concentration by step 1-3 at a temperature of the first sour water solution, stirring the One sour hydrolysis time, hydrolyzes the fiber in fine grained II, obtains suspension;
Step 1-4 dilutes suspension with distilled water, then is centrifuged the first centrifugation time with the second mixing speed, repeats this Step to pH value reaches predetermined value, obtains acidic suspension;
Step 1-5, acidic suspension is dialysed, until it is neutral, obtain Cellulose nanocrystal liquid suspension.
In the method provided by the invention using Cellulose nanocrystal body production high performance plastic film, can also have Such feature: where the first concentration in step 1-2 is 2wt%, and the first soaking time is 12h, first in step 1-3 Sour hydrolysis temperature is 45 DEG C, and the second concentration is 64wt%, and the first sour hydrolysis time is 1h, the second mixing speed in step 1-4 For 10000rpm, the first centrifugation time is 15min, and the pH value of acidic suspension is 4, the Cellulose nanocrystal body in step 1-4 The pH value of suspension is 6.5.
In the method provided by the invention using Cellulose nanocrystal body production high performance plastic film, can also have Such feature: where the first mass in step 2 is 0.3g, and the first temperature is 98 DEG C, and the first volume is 80mL, the second matter Amount is 3g, is at the first time 15min.
In the method provided by the invention using Cellulose nanocrystal body production high performance plastic film, can also have Such feature: where the second volume in step 3 is 100mL.
In the method provided by the invention using Cellulose nanocrystal body production high performance plastic film, can also have Such feature: where the first mixing speed in step 4 is 800rpm, and the second time was 10min.
In the method provided by the invention using Cellulose nanocrystal body production high performance plastic film, can also have Such feature: where the second temperature in step 5 is 80 DEG C, and the third time is 10min.
In the method provided by the invention using Cellulose nanocrystal body production high performance plastic film, can also have Such feature: where the first drying temperature in step 6 is 55 DEG C, and the first drying time was 16h.
The action and effect of invention
Using the method for Cellulose nanocrystal body production high performance plastic film involved according to the present invention, using cotton Suede by pretreatment, mixes, remixes, stirs, stirs, heats, dries, removes these processes and obtain plastic film, this method Process flow it is simple, short processing time.In addition, taking full advantage of biodegradable starch material using cotton down as raw material And polyvinyl alcohol, cellulose-binding nanocrystal improve its mechanical performance, can effectively substitute traditional petroleum-based plastics, not only It is environmentally protective, and very big economic benefit can be created.
Specific embodiment
In order to which the technological means for realizing the present invention is easy to understand with effect, the present invention is made with reference to embodiments It is specifically described.
Embodiment one:
Step 1, the PVA powder of 0.3g is gelatinized and is added the starch powder of 3g in 98 DEG C of 80mL hot water, mix 15min obtains mixed liquor I.
Step 2, mixed liquor I is stirred into 10min under the mixing speed of 800rpm, obtains mixed liquor I I.
Step 3, mixed liquor I I is heated into 10min in 80 DEG C of water-bath, obtains mixed liquor I II.
Step 4, mixed liquor I II is poured into culture dish, 55 DEG C at a temperature of dry 16h after removed, obtain plastics Film I.
Step 5, the detection of the parameters such as tensile strength, extension at break and water absorption rate is carried out, to plastic film I to judge its property The quality of energy.
Testing result are as follows: tensile strength 4.20MPa, elongation at break 64.73%, water absorption rate 69.73%.
Embodiment two:
Step 1, the pretreatment of sour water solution is carried out to velveteen, obtains Cellulose nanocrystal body.
Step 1-1 grinds velveteen with scissors, obtains fine grained I.
Fine grained I is immersed in 12h in the NaOH solution of 2wt% at room temperature, is then washed with distilled water, obtained by step 1-2 To treated fine grained II;
Step 1-3 in the sulfuric acid solution that fine grained II is added to 64wt% at 45 DEG C, stirs 1h, hydrolyzes fiber, Obtain suspension;
Step 1-4 dilutes suspension with distilled water, then is centrifuged 15min with the speed of 10000rpm, repeats this step extremely PH value is 4, obtains acidic suspension;
Step 1-5, acidic suspension is dialysed, until pH is 6.5, obtains Cellulose nanocrystal liquid suspension.
Step 2, the PVA powder of 0.3g is gelatinized and is added the starch powder of 3g in 98 DEG C of 80mL hot water, mix 15min obtains mixed liquor I.
Step 3, mixed liquor I is added in the Cellulose nanocrystal liquid suspension that the concentration of 100mL is 3%, obtains suspension I。
Step 4, suspension I is stirred into 10min under the mixing speed of 800rpm, obtains suspension II.
Step 5, suspension II is heated into 10min in 80 DEG C of water-bath, obtains suspension II I.
Step 6, suspension II I is poured into culture dish, 55 DEG C at a temperature of dry 16h after removed, obtain plastics Film II.
Step 7, the detection of the parameters such as tensile strength, extension at break and water absorption rate is carried out, to plastic film II to judge it The quality of performance.
Testing result are as follows: tensile strength 2.89MPa, elongation at break 65.37%, water absorption rate 62.15%.
Embodiment three:
Step 1, the pretreatment of sour water solution is carried out to velveteen, obtains Cellulose nanocrystal body.
Step 1-1 grinds velveteen with scissors, obtains fine grained I.
Fine grained I is immersed in 12h in the NaOH solution of 2wt% at room temperature, is then washed with distilled water, obtained by step 1-2 To treated fine grained II.
Step 1-3, by fine grained II 45 DEG C at a temperature of be added to 64wt% sulfuric acid solution in, stir 1h, make fibre Dimension hydrolysis, obtains suspension.
Step 1-4 dilutes suspension with distilled water, then is centrifuged 15min with the speed of 10000rpm, repeats this step extremely PH value is 4, obtains acidic suspension.
Step 1-5, acidic suspension is dialysed, until pH value is 6.5, obtains Cellulose nanocrystal liquid suspension.
Step 2, the PVA powder of 0.3g is gelatinized and is added the starch powder of 3g in 98 DEG C of 80mL hot water, mix 15min obtains mixed liquor I.
Step 3, mixed liquor I is added in the Cellulose nanocrystal liquid suspension that the concentration of 100mL is 5%, obtains suspension I。
Step 4, suspension I is stirred into 10min under the mixing speed of 800rpm, obtains suspension II.
Step 5, suspension II is heated into 10min in 80 DEG C of water-bath, obtains suspension II I.
Step 6, suspension II I is poured into culture dish, 55 DEG C at a temperature of dry 16h after removed, obtain plastics Film III.
Step 7, the detection of the parameters such as tensile strength, extension at break and water absorption rate is carried out, to plastic film III to judge it The quality of performance.
Testing result are as follows: tensile strength 4.03MPa, elongation at break 66.82%, water absorption rate 60.38%.
Example IV:
Step 1, the pretreatment of sour water solution is carried out to velveteen, obtains Cellulose nanocrystal body.
Step 1-1 grinds velveteen with scissors, obtains fine grained I.
Fine grained I is immersed in 12h in the NaOH solution of 2wt% at room temperature by step 1-2, then it is washed with distilled water, The fine grained II that obtains that treated.
Step 1-3, by fine grained II 45 DEG C at a temperature of be added to 64wt% sulfuric acid solution in, stir 1h, make fibre Dimension hydrolysis, obtains suspension.
Step 1-4 dilutes suspension with distilled water, then is centrifuged 15min with the speed of 10000rpm, repeats this step extremely PH value is 4, obtains acidic suspension.
Step 1-5, acidic suspension is dialysed, until pH value is 6.5, obtains Cellulose nanocrystal liquid suspension.
Step 2, the PVA powder of 0.3g is gelatinized and is added the starch powder of 3g in 98 DEG C of 80mL hot water, mix 15min obtains mixed liquor I.
Step 3, mixed liquor I is added in the Cellulose nanocrystal liquid suspension that the concentration of 100mL is 7%, obtains suspension I。
Step 4, suspension I is stirred into 10min under the mixing speed of 800rpm, obtains suspension II.
Step 5, suspension II is heated into 10min in 80 DEG C of water-bath, obtains suspension II I.
Step 6, suspension II I is poured into culture dish, 55 DEG C at a temperature of dry 16h after removed, obtain plastics Film IV.
Step 7, the detection of the parameters such as tensile strength, extension at break and water absorption rate is carried out, to plastic film IV to judge it The quality of performance.
Testing result are as follows: tensile strength 4.22MPa, elongation at break 71.1%, water absorption rate 59.03%.
Embodiment five:
Step 1, the pretreatment of sour water solution is carried out to velveteen, obtains Cellulose nanocrystal body.
Step 1-1 grinds velveteen with scissors, obtains fine grained I.
Fine grained I is immersed in 12h in the NaOH solution of 2wt% at room temperature by step 1-2, then it is washed with distilled water, The fine grained II that obtains that treated;
Step 1-3, by fine grained II 45 DEG C at a temperature of be added to 64wt% sulfuric acid solution in, stir 1h, make fibre Dimension hydrolysis, obtains suspension;
Step 1-4 dilutes suspension with distilled water, then is centrifuged 15min with the speed of 10000rpm, repeats this step extremely PH value is 4, obtains acidic suspension;
Step 1-5, acidic suspension is dialysed, until pH value is 6.5, obtains Cellulose nanocrystal liquid suspension.
Step 2, the PVA powder of 0.3g is gelatinized and is added the starch powder of 3g in 98 DEG C of 80mL hot water, mix 15min obtains mixed liquor I.
Step 3, mixed liquor I is added in the Cellulose nanocrystal liquid suspension that the concentration of 100mL is 10%, obtains suspension I。
Step 4, suspension I is stirred into 10min under the mixing speed of 800rpm, obtains suspension II.
Step 5, suspension II is heated into 10min in 80 DEG C of water-bath, obtains suspension II I.
Step 6, suspension II I is poured into culture dish, 55 DEG C at a temperature of dry 16h after removed, obtain plastics Film V.
Step 7, the detection of the parameters such as tensile strength, extension at break and water absorption rate is carried out, to plastic film V to judge its property The quality of energy.
Testing result are as follows: tensile strength 4.59MPa, elongation at break 60.03%, water absorption rate 57.91%.
Embodiment six:
Step 1, the pretreatment of sour water solution is carried out to velveteen, obtains Cellulose nanocrystal body.
Step 1-1 grinds velveteen with scissors, obtains fine grained I.
Fine grained I is immersed in 12h in the NaOH solution of 2wt% at room temperature by step 1-2, then it is washed with distilled water, The fine grained II that obtains that treated;
Step 1-3, by fine grained II 45 DEG C at a temperature of be added to 64wt% sulfuric acid solution in, stir 1h, make fibre Dimension hydrolysis, obtains suspension;
Step 1-4 dilutes suspension with distilled water, then is centrifuged 15min with the speed of 10000rpm, repeats this step extremely PH value is 4, obtains acidic suspension;
Step 1-5, acidic suspension is dialysed, until pH value is 6.5, obtains Cellulose nanocrystal liquid suspension.
Step 2, the PVA powder of 0.3g is gelatinized and is added the starch powder of 3g in 98 DEG C of 80mL hot water, mix 15min obtains mixed liquor I.
Step 3, mixed liquor I is added in the Cellulose nanocrystal liquid suspension that the concentration of 100mL is 15%, obtains suspension I。
Step 4, suspension I is stirred into 10min under the mixing speed of 800rpm, obtains suspension II.
Step 5, suspension II is heated into 10min in 80 DEG C of water-bath, obtains suspension II I.
Step 6, suspension II I is poured into culture dish, 55 DEG C at a temperature of dry 16h after removed, obtain plastics Film VI.
Step 7, the detection of the parameters such as tensile strength, extension at break and water absorption rate is carried out, to plastic film VI to judge it The quality of performance.
Testing result are as follows: tensile strength 4.38MPa, elongation at break 57.26%, water absorption rate 56.77%.
Embodiment seven:
Step 1, the pretreatment of sour water solution is carried out to velveteen, obtains Cellulose nanocrystal body.
Step 1-1 grinds velveteen with scissors, obtains fine grained I.
Fine grained I is immersed in 12h in the NaOH solution of 2wt% at room temperature, is then washed with distilled water, obtained by step 1-2 To treated fine grained II;
Step 1-3, by fine grained II 45 DEG C at a temperature of be added to 64wt% sulfuric acid solution in, stir 1h, make fibre Dimension hydrolysis, obtains suspension;
Step 1-4 dilutes suspension with distilled water, then is centrifuged 15min with the speed of 10000rpm, repeats this step extremely PH value is 4, obtains acidic suspension;
Step 1-5, acidic suspension is dialysed, until pH value is 6.5, obtains Cellulose nanocrystal liquid suspension.
Step 2, the PVA powder of 0.3g is gelatinized and is added the starch powder of 3g in 98 DEG C of 80mL hot water, mix 15min obtains mixed liquor I.
Step 3, mixed liquor I is added in the Cellulose nanocrystal liquid suspension that the concentration of 100mL is 20%, obtains suspension I。
Step 4, suspension I is stirred into 10min under the mixing speed of 800rpm, obtains suspension II.
Step 5, suspension II is heated into 10min in 80 DEG C of water-bath, obtains suspension II I.
Step 6, suspension II I is poured into culture dish, 55 DEG C at a temperature of dry 16h after removed, obtain plastics Film VII.
Step 7, the detection of the parameters such as tensile strength, extension at break and water absorption rate is carried out, to plastic film VII to judge it The quality of performance.
Testing result are as follows: tensile strength 4.16MPa, elongation at break 40.67%, water absorption rate 54.81%.
The characterization result of plastic film I to plastic film VII are as shown in table 1.
The characterization result of table 1 plastic film I to plastic film XVII
The action and effect of embodiment
As shown in Table 1, Cellulose nanocrystal body is not added in embodiment one kind, is only prepared for PVA/ starch film, Tensile strength 4.20MPa, elongation at break 64.73%, water absorption rate 69.73%, and water absorption rate highest.
Embodiment two joined different amounts of Cellulose nanocrystal body into embodiment seven, be prepared for PVA/ starch/fiber The tri compound film of plain nanocrystal, wherein with the increase of Cellulose nanocrystal liquid suspension concentration, water absorption rate gradually drops It is low, this is because cellulose nanometer possesses lower water absorption rate, and cellulose than polymer substrate because of its crystal structure Powerful interaction of hydrogen bond is formed between nanocrystal, PVA and starch can reduce the expansion of hydrone in the polymer matrix It dissipates.In addition, after mixing Cellulose nanocrystal body, Cellulose nanocrystal liquid suspension concentration in 3-10%, plastic film Tensile strength gradually increases;In 10-20%, the tensile strength of plastic film gradually subtracts Cellulose nanocrystal liquid suspension concentration It is small.In 3-7%, the elongation at break of plastic film gradually rises Cellulose nanocrystal liquid suspension concentration;Cellulose nanometer In 7-20%, the elongation at break of plastic film gradually decreases Crystal suspensions.After Cellulose nanocrystal body is added, plastics are thin The performance of film gets a promotion, this is because Cellulose nanocrystal, which is known from experience, forms network of fibers by hydrogen bond with polymer substrate, this It will limit the mobility of polymer and enhance the mechanical performance of composite material.
Therefore, tensile strength, elongation at break and water absorption rate are comprehensively considered, when the concentration of Cellulose nanocrystal liquid suspension The effect of the plastic film prepared when being 10% is best.
A kind of method using Cellulose nanocrystal body production high performance plastic film that the present embodiment two to seven refers to, is adopted With velveteen, by pretreatment, mixes, remixes, stirs, stirs, heats, dries, removes these processes and obtain plastic film, it should The process flow of method is simple, short processing time.In addition, taking full advantage of biodegradable starch using cotton down as raw material Material and polyvinyl alcohol, cellulose-binding nanocrystal improve its mechanical performance, can effectively substitute traditional petroleum-based plastics, It is not only environmentally protective, but also very big economic benefit can be created.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.

Claims (8)

1. a kind of method using Cellulose nanocrystal body production high performance plastic film, which comprises the steps of:
Step 1, the pretreatment of sour water solution is carried out to velveteen, obtains Cellulose nanocrystal liquid suspension;
Step 2, the PVA powder of the first mass is gelatinized in the hot water of the first volume of the first temperature and the second mass is added Starch powder, mixing at the first time, obtain mixed liquor I;
Step 3, the mixed liquor I is added in the Cellulose nanocrystal liquid suspension that the concentration of the second volume is 3%-20% In, obtain suspension I;
Step 4, the suspension I was stirred under the first mixing speed for the second time, obtains suspension II;
Step 5, the suspension II is heated to the third time in the water-bath of second temperature, obtains suspension II I;
Step 6, the suspension II I is poured into culture dish, is shelled after dry first drying time under the first drying temperature From obtaining plastic film.
2. the method according to claim 1 using Cellulose nanocrystal body production high performance plastic film, feature exist In:
Wherein, the sour water solution pretreatment in the step 1 includes following sub-step:
Step 1-1 grinds the velveteen with scissors, obtains fine grained I;
The fine grained I is impregnated the first soaking time at room temperature in the NaOH solution of the first concentration, then used by step 1-2 Water washing is distilled, the fine grained II that obtains that treated;
The fine grained II is added in the sulfuric acid solution of the second concentration by step 1-3 at a temperature of the first sour water solution, stirring the One sour hydrolysis time, hydrolyzes the fiber in the fine grained II, obtains suspension;
Step 1-4 dilutes the suspension with distilled water, then is centrifuged the first centrifugation time with the second mixing speed, repeats this Step to pH value reaches predetermined value, obtains acidic suspension;
Step 1-5 dialyses the acidic suspension, until it is neutral, obtain the Cellulose nanocrystal liquid suspension.
3. the method according to claim 2 using Cellulose nanocrystal body production high performance plastic film, feature exist In:
Wherein, first concentration in the step 1-2 is 2wt%, and first soaking time is 12h,
The described first sour hydrolysis temperature in the step 1-3 is 45 DEG C, and second concentration is 64wt%, first sour water The solution time is 1h,
Second mixing speed in the step 1-4 is 10000rpm, and first centrifugation time is 15min, the acid Property suspension pH value be 4,
The pH value of the Cellulose nanocrystal liquid suspension in the step 1-4 is 6.5.
4. the method according to claim 1 using Cellulose nanocrystal body production high performance plastic film, feature exist In:
Wherein, first mass in the step 2 is 0.3g, and first temperature is 98 DEG C, and first volume is 80mL, second mass are 3g, and the first time is 15min.
5. the method according to claim 1 using Cellulose nanocrystal body production high performance plastic film, feature exist In:
Wherein, second volume in the step 3 is 100mL.
6. the method according to claim 1 using Cellulose nanocrystal body production high performance plastic film, feature exist In:
Wherein, first mixing speed in the step 4 is 800rpm, and second time is 10min.
7. the method according to claim 1 using Cellulose nanocrystal body production high performance plastic film, feature exist In:
Wherein, the second temperature in the step 5 is 80 DEG C, and the third time is 10min.
8. the method according to claim 1 using Cellulose nanocrystal body production high performance plastic film, feature exist In:
Wherein, first drying temperature in the step 6 is 55 DEG C, and first drying time is 16h.
CN201810841005.5A 2018-07-27 2018-07-27 A method of high performance plastic film is produced using Cellulose nanocrystal body Pending CN109096546A (en)

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CN113493572A (en) * 2021-07-22 2021-10-12 上海乐亿塑料制品有限公司 Degradable environment-friendly plastic film, and preparation method and application thereof
CN115449171A (en) * 2022-08-03 2022-12-09 荆楚理工学院 Preparation method of high-strength and high-toughness starch-based pH-responsive intelligent indicating film
CN115477777A (en) * 2022-10-11 2022-12-16 烟台南山学院 Preparation method of cellulose nanocrystal film

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Application publication date: 20181228