CN101649061B - Preparing method of cellulose membrane specially used by aviation instrument panel - Google Patents
Preparing method of cellulose membrane specially used by aviation instrument panel Download PDFInfo
- Publication number
- CN101649061B CN101649061B CN2009100167795A CN200910016779A CN101649061B CN 101649061 B CN101649061 B CN 101649061B CN 2009100167795 A CN2009100167795 A CN 2009100167795A CN 200910016779 A CN200910016779 A CN 200910016779A CN 101649061 B CN101649061 B CN 101649061B
- Authority
- CN
- China
- Prior art keywords
- controlled
- temperature
- viscose glue
- seconds
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention relates to a cellulose membrane and a preparing method thereof, in particular to a cellulose membrane specially used by an aviation instrument panel and a preparing method thereof. The method comprises the following steps: selecting raw material, preparing viscose glue, preparing films, washing by water, desulphurizing, blenching, plasticizing, drying and humidifying, and then a finished product is obtained. The finished product adopts cotton pulp and wood pulp as raw materials; in practical application, the cellulose membrane is capable of degrading, can achieve the requirement of environment protection and has the advantages of even thickness, high strength, favourable toughness, no static electricity and favourable elongation and tensile strength. The cellulose membrane of the invention is mainly used in the aviation instrument panel manufacturing industry.
Description
Technical field
The present invention relates to a kind of preparation method of film, relate in particular to a kind of preparation method of cellulose membrane specially used by aviation instrument panel.
Background technology
Along with the enhancing of human environmental consciousness, because the plastics based packaging material at the occurring in nature non-degradable, can not satisfy people's environmental requirement again.
Current; But along with developed country to natural degradation, the continuous increase of the wrapping material demand that economizes on resources, be prone to tear; RCF regenerated cellulose film is applied to rapidly pack like luxury food with its unique saving, environmental-protecting performance; Drug packaging, the industries such as outer packaging of aerospace and exported product.Simultaneously, people are also increasingly high to its requirement, especially as the cellulose membrane of used by aviation instrument panel purposes, singly do not require reliable in quality stable, strict to the thickness and the transparency of cellulose membrane especially.
At present, the most of quantitatively scope of cellulose membrane technical indicator is 19～30g/m on the international and domestic market
2, also have small portion quantitatively at 40～45g/m
2, thickness is 20～40 μ m, and aviation has quantitatively reached 65g/m with the cellulose membrane technical requirement
2More than, thickness requirement scope 45～55 μ m produce for this thickness cellulose membrane, and this is a very large technical barrier.
Summary of the invention
Technical problem to be solved by this invention has provided a kind of preparation method of cellulose membrane specially used by aviation instrument panel, and adopting cotton pulp and wood pulp natural cellulose is raw material, the cellulose membrane specially used by aviation instrument panel of preparation; In practical application, degradable has reached environmental protection requirement; And it is even to have thickness, and intensity is high, good toughness, no static; Have good elongation and tensile strength, be mainly used in and make the used by aviation instrument panel industry.
In order to reach above purpose, the technical scheme that the present invention adopted is:
A kind of preparation method of cellulose membrane specially used by aviation instrument panel may further comprise the steps: raw material is chosen operation, viscose glue preparation section, film preparation operation, washing step, desulfurization process, bleaching process, plasticizing operation, dry damping operation and is made finished product.
Described raw material is chosen operation: choose the cotton pulp of whiteness >=82% and the wood pulp of whiteness >=91%, weight ratio is 30%～50% cotton pulp and 70%～50% wood pulp.
Described viscose glue preparation section:
A, with the cotton pulp wood pulp of choosing after alkalization, squeezing, aging, yellow, make cellulose xanthate;
B, with the cellulose xanthate after the yellow, adding concentration is the NaOH solution of 10～15g/L, dissolves, the volume of every batch of cellulose xanthate is 11.0～13.0m
3, NaOH solution add-on 115～135kg/ ton paper, temperature is controlled at 16-18 ℃, makes viscose glue after the dissolving, the composition of its viscose glue: α-cell8.35～8.65%, NaOH 5.2～5.5%, viscosity 50～60sec, ammonium value 6.2～7.5ml, all the other are water;
C, the viscose glue after will dissolving carry out maturation, and temperature is controlled between 39～42 ℃, and the time is controlled at 9～10h, viscose glue index: α-cell 8.5～8.85% after the maturation, and NaOH 5.3～5.5%, viscosity 47～56sec, ammonium value 5.5～6.2ml;
D, with the viscose glue after the maturation, after filtering, get into the deaeration tower; Temperature of cooling water is controlled between 16～20 ℃, and deaeration tower temperature in is controlled at 39～42 ℃, 30～35 ℃ of deaeration tower temperature out controls; Time is controlled at 2.5～3min, makes the spinning viscose glue after the deaeration, and spinning viscose glue index: α-cell 8.8～9.10%; NaOH 5.0～5.3%, viscosity 40～48sec, ammonium value 4.6～5.2ml.
Described film preparation operation: the spinning viscose glue makes film through in pipe-line transportation to the film forming device.
Described washing step: the film after the moulding is changed in the washing bath, and water temperature is between 85～100 ℃, washes 25～45 seconds.
Described desulfurization process: the film after the pickling is changed in the desulfurizer, and adding concentration is the sodium hydroxide of 2.0～3.0g/L, add-on 3.0～6.0kg/ ton paper, and desulfurization temperature is 90～110 ℃, desulfurization changed in the washing bath after 5～9 seconds, washed 10～30 seconds.
Described bleaching process: the film after the desulfurization is put into bleaching tank, and adding concentration is 3.0～5.0g/L Youxiaolin, and add-on 3.5～7kg/ ton paper was bleached after 4～10 seconds, changed in the washing bath, washed 40～60 seconds.
Described plasticizing operation: the film after will bleaching, washing, change in the plasticizing pond, temperature is controlled at 52～65 ℃, and adding concentration is the glycerine of 110～130g/L, and add-on is 250～300kg/ ton paper, and pH value is controlled at 8.5～10, plastifies 4～10 seconds.
Described dry damping operation: the film after will plastifying changes drying room over to, carries out heat-wind circulate drying, and temperature is 140 ℃; After dry 90～110 seconds, change between damping, temperature is controlled at 45～55 ℃; Relative humidity is controlled at 60～90%RH; Damping 6～15 seconds, moisture controlled make aviation cellulose membrane specially finished product between 6～10%.
The glycerine that the present invention adds is currently available products, and optional to use Haiquan sunrise foreign trade ltd supply model be the Malaysian imported with original packaging product of M314429.
It is raw material that the present invention adopts cotton pulp and wood pulp natural cellulose, and the cellulose membrane specially used by aviation instrument panel of preparation is in practical application; Degradable; Reached environmental protection requirement, and had good elongation and tensile strength, and thickness is even; Intensity is high, no static, is mainly used in to make the used by aviation instrument panel industry.
Table one: product and product of the present invention that Britain company produces, the technical indicator contrast table:
| The product that Britain company produces | Product of the present invention | |
| Quantitatively | 45g/m 2 | 65～70g/m 2 |
| Tensile strength | ≥35N/15mm | ≥40N/15mm |
| The thickness banner is poor | ≤1.5μm | ≤1.5μm |
| Fluidizer | 15～20％ | 25～30％ |
| Thickness | ?30～40μm | ?45～55μm |
| Moisture | 6～10％ | 6～10％ |
| Elongation | ≥15％ | ≥18％ |
| Transparency | >=40 layers | >=40 layers |
Show through above data, product of the present invention quantitatively be higher than Britain's product with the thickness index, and other each item physical indexs all are superior to Britain's sample technical indicator, can better application in manufacturing used by aviation instrument panel industry.
The aviation cellulose membrane specially that preparation method of the present invention produces, following through the detection technique index:
| Quantitatively | 65～70g/m 2 | Moisture, | ?6～10％ |
| Tensile strength | ≥40N/15mm | Elongation | ?≥18％ |
| The thickness banner is poor | ≤1.5μm | Thickness | ?45～55μm |
| Fluidizer | 25～30％ | Transparency | >=40 layers |
Embodiment
Below in conjunction with embodiment the present invention is further specified:
Embodiment 1
(1) raw material is chosen operation: choose the cotton pulp of whiteness 82% and the wood pulp of whiteness 91%, weight ratio is 30% cotton pulp and 70% wood pulp;
(2) viscose glue preparation section:
A, with the cotton pulp wood pulp of choosing after alkalization, squeezing, aging, yellow, make cellulose xanthate;
B, with the cellulose xanthate after the yellow, adding concentration is the NaOH solution of 10g/L, dissolves, the volume of every batch of cellulose xanthate is 11.0m
3, NaOH solution add-on 120kg/ ton paper, temperature is controlled at 18 ℃, makes viscose glue after the dissolving, the composition of its viscose glue: α-cell 8.35%, NaOH 5.2%, viscosity 50sec, ammonium value 6.2ml, all the other are water;
C, the viscose glue after will dissolving carry out maturation, and temperature is controlled at 39 ℃, and the time is controlled at 9h, viscose glue index: α-cell 8.5% after the maturation, and NaOH 5.3%, viscosity 47sec, ammonium value 5.5ml;
D, with the viscose glue after the maturation, after filtering, get into the deaeration tower; Temperature of cooling water is controlled at 16 ℃, and its deaeration tower temperature in is controlled at 39 ℃, 31 ℃ of deaeration tower temperature out controls; Time is controlled at 2.5min, makes the spinning viscose glue after the deaeration, and spinning viscose glue index: α-cell 8.8%; NaOH 5.0%, viscosity 40sec, ammonium value 4.6ml;
(3) film preparation operation: the spinning viscose glue makes film through in pipe-line transportation to the film forming device;
(4) washing step: the film after the moulding is changed in the washing bath, and water temperature is 85 ℃, washes 25 seconds;
(5) desulfurization process: the film after the pickling is changed in the desulfurizer, and adding concentration is the sodium hydroxide of 2.0g/L, and add-on 3.0kg/ ton paper, desulfurization temperature are 90 ℃, and desulfurization changed in the washing bath after 5 seconds, washed 10 seconds;
(6) bleaching process: the film after the desulfurization is put into bleaching tank, and adding concentration is the 3.0g/L Youxiaolin, and add-on 3.5kg/ ton paper was bleached after 4 seconds, changed in the washing bath, washed 40 seconds;
(7) plasticizing operation: the film after will bleaching, washing, change in the plasticizing pond, temperature is controlled at 52 ℃, and adding concentration is the glycerine of 110g/L, and add-on is a 250kg/ ton paper, and pH value is controlled at 8.5, plastifies 4 seconds;
(8) dry damping operation: the film after will plastifying changes drying room over to, carries out heat-wind circulate drying, and temperature is 140 ℃, after dry 90 seconds, changes between damping, and temperature is controlled at 45 ℃, and relative humidity is controlled at 60%RH, and damping 6 seconds makes finished product.
The aviation cellulose membrane specially of present embodiment preparation, following through the detection technique index:
| Quantitatively | 65.2g/m 2 | Moisture, | 8.2％ |
| Tensile strength | ≥51.26N/15mm | Elongation | 23.44％ |
| The thickness banner is poor | 1.2μm | Thickness | 46μm |
| Fluidizer | 25.2％ | Transparency | 48 layers |
The cellulose membrane of present embodiment preparation, in practical application, it is even to have thickness, and intensity is high, good toughness, and no static has good elongation and tensile strength, can be used in manufacturing used by aviation instrument panel industry.
Embodiment 2
(1) raw material is chosen operation: choose the cotton pulp of whiteness 83% and the wood pulp of whiteness 92%, weight ratio is 40% cotton pulp and 60% wood pulp;
(2) viscose glue preparation section:
A, with the cotton pulp wood pulp of choosing after alkalization, squeezing, aging, yellow, make cellulose xanthate;
B, with the cellulose xanthate after the yellow, adding concentration is the NaOH solution of 13g/L, dissolves, the volume of every batch of cellulose xanthate is 12.0m
3, NaOH solution add-on 115kg/ ton paper, temperature is controlled at 16 ℃, makes viscose glue after the dissolving, the composition of its viscose glue: α-cell 8.5%, NaOH 5.3%, viscosity 55sec, ammonium value 6.6ml, all the other are water;
C, the viscose glue after will dissolving carry out maturation, and temperature is controlled at 40 ℃, and the time is controlled at 9.5h, the index of viscose glue: α-cell 8.75% after the maturation, and NaOH 5.35%, viscosity 52sec, ammonium value 5.8ml;
D, with the viscose glue after the maturation, after filtering, get into the deaeration tower; Temperature of cooling water is controlled at 18 ℃, and its deaeration tower temperature in is controlled at 40 ℃, 32 ℃ of deaeration tower temperature out controls; Time is controlled at 2.7min, makes the spinning viscose glue after the deaeration, and spinning viscose glue index: α-cell 8.9%; NaOH 5.2%, viscosity 44sec, ammonium value 5.0ml;
(3) film preparation operation: the spinning viscose glue makes film through in pipe-line transportation to the film forming device;
(4) washing step: the film after the moulding is changed in the washing bath, and water temperature is 90 ℃, washes 30 seconds;
(5) desulfurization process: the film after the pickling is changed in the desulfurizer, and adding concentration is the sodium hydroxide of 2.6g/L, and add-on 4.5kg/ ton paper, desulfurization temperature are 95 ℃, and desulfurization changed in the washing bath after 7 seconds, washed 20 seconds;
(6) bleaching process: the film after the desulfurization is put into bleaching tank, and adding concentration is the 3.8g/L Youxiaolin, and add-on 4.5kg/ ton paper was bleached after 6 seconds, changed in the washing bath, washed 50 seconds;
(7) plasticizing operation: the film after will bleaching, washing, change in the plasticizing pond, temperature is controlled at 58 ℃, and adding concentration is the glycerine of 114g/L, and add-on is a 258kg/ ton paper, and pH value is controlled at 9.5, plastifies 6 seconds;
(8) dry damping operation: the film after will plastifying changes drying room over to, carries out heat-wind circulate drying, and temperature is 140 ℃, after dry 100 seconds, changes between damping, and temperature is controlled at 50 ℃, and relative humidity is controlled at 70%RH, and damping 10 seconds makes finished product.
The aviation cellulose membrane specially of present embodiment preparation, following through the detection technique index:
| Quantitatively | 66g/m 2 | Moisture, | 7.4％ |
| Tensile strength | ≥50.6N/15mm | Elongation | 22.77％ |
| The thickness banner is poor | 1.4μm | Thickness | 47μm |
| Fluidizer | 25％ | Transparency | 48 layers |
The cellulose membrane of present embodiment preparation, in practical application, it is even to have thickness, and intensity is high, good toughness, no static, elongation and tensile strength property are good, can be used in manufacturing used by aviation instrument panel industry.
Embodiment 3
(1) raw material is chosen operation: choose the cotton pulp of whiteness 84% and the wood pulp of whiteness 93%, weight ratio is 35% cotton pulp and 65% wood pulp;
(2) viscose glue preparation section:
A, with the cotton pulp wood pulp of choosing after alkalization, squeezing, aging, yellow, make cellulose xanthate;
B, with the cellulose xanthate after the yellow, adding concentration is the NaOH solution of 11g/L, dissolves, the volume of every batch of cellulose xanthate is 12.5m
3, NaOH solution add-on 125kg/ ton paper, temperature is controlled at 17 ℃, makes viscose glue after the dissolving, the composition of its viscose glue: α-cell 8.4%, NaOH 5.5%, viscosity 58sec, ammonium value 7.4ml, all the other are water;
C, the viscose glue after will dissolving carry out maturation, and temperature is controlled at 40 ℃, and the time is controlled at 9.3h, the index of viscose glue: α-cell 8.55% after the maturation, and NaOH 5.4%, viscosity 56sec, ammonium value 6.0ml;
D, with the viscose glue after the maturation, after filtering, get into the deaeration tower; Temperature of cooling water is controlled at 17 ℃, and its deaeration tower temperature in is controlled at 41 ℃, 33 ℃ of deaeration tower temperature out controls; Time is controlled at 2.6min, makes the spinning viscose glue after the deaeration, and spinning viscose glue index: α-cell 8.85%; NaOH 5.1%, viscosity 46sec, ammonium value 5.0ml;
(3) film preparation operation: the spinning viscose glue makes film through in pipe-line transportation to the film forming device;
(4) washing step: the film after the moulding is changed in the washing bath, and water temperature is 88 ℃, washes 29 seconds;
(5) desulfurization process: the film after the pickling is changed in the desulfurizer, and adding concentration is the sodium hydroxide of 2.2g/L, and add-on 3.9kg/ ton paper, desulfurization temperature are 94 ℃, and desulfurization changed in the washing bath after 6 seconds, washed 16 seconds;
(6) bleaching process: the film after the desulfurization is put into bleaching tank, and adding concentration is the 3.5g/L Youxiaolin, and add-on 4.0kg/ ton paper was bleached after 5 seconds, changed in the washing bath, washed 44 seconds;
(7) plasticizing operation: the film after will bleaching, washing, change in the plasticizing pond, temperature is controlled at 55 ℃, and adding concentration is the glycerine of 130g/L, and add-on is a 300kg/ ton paper, and pH value is controlled at 9.0, plastifies 8 seconds;
(8) dry damping operation: the film after will plastifying changes drying room over to, carries out heat-wind circulate drying, and temperature is 140 ℃, after dry 98 seconds, changes between damping, and temperature is controlled at 52 ℃, and relative humidity is controlled at 78%RH, and damping 12 seconds makes finished product.
The aviation cellulose membrane specially of present embodiment preparation, following through the detection technique index:
| Quantitatively | 70g/m 2 | Moisture, | 8.2％ |
| Tensile strength | ≥55.8N/15mm | Elongation | 25.98％ |
| The thickness banner is poor | 1.3μm | Thickness | 55μm |
| Fluidizer | 28％ | Transparency | 43 layers |
The cellulose membrane of present embodiment preparation, in practical application, degradable has reached environmental protection requirement.
Embodiment 4
(1) raw material is chosen operation: choose the cotton pulp of whiteness 83% and the wood pulp of whiteness 91%, weight ratio is 45% cotton pulp and 55% wood pulp;
(2) viscose glue preparation section:
A, with the cotton pulp wood pulp of choosing after alkalization, squeezing, aging, yellow, make cellulose xanthate;
B, with the cellulose xanthate after the yellow, adding concentration is the NaOH solution of 12g/L, dissolves, the volume of every batch of cellulose xanthate is 11.6m
3, NaOH solution add-on 128kg/ ton paper, temperature is controlled at 17 ℃, makes viscose glue after the dissolving, the composition of its viscose glue: α-cell 8.44%, NaOH 5.26%, viscosity 56sec, ammonium value 6.7ml, all the other are water;
C, the viscose glue after will dissolving carry out maturation, and temperature is controlled at 42 ℃, and the time is controlled at 9.3h, the index of viscose glue: α-cell 8.56% after the maturation, and NaOH 5.38%, viscosity 52sec, ammonium value 6.0ml;
D, with the viscose glue after the maturation, after filtering, get into the deaeration tower; Temperature of cooling water is controlled at 19 ℃, and its deaeration tower temperature in is controlled at 42 ℃, 34 ℃ of deaeration tower temperature out controls; Time is controlled at 2.5～3min, makes the spinning viscose glue after the deaeration, and spinning viscose glue index: α-cell 8.92%; NaOH 5.25%, viscosity 47sec, ammonium value 5.0ml;
(3) film preparation operation: the spinning viscose glue makes film through in pipe-line transportation to the film forming device;
(4) washing step: the film after the moulding is changed in the washing bath, and water temperature is 92 ℃, washes 30 seconds.
(5) desulfurization process: the film after the pickling is changed in the desulfurizer, and adding concentration is the sodium hydroxide of 2.2g/L, and add-on 5.4kg/ ton paper, desulfurization temperature are 105 ℃, and desulfurization changed in the washing bath after 8 seconds, washed 28 seconds;
(6) bleaching process: the film after the desulfurization is put into bleaching tank, and adding concentration is the 4.3g/L Youxiaolin, and add-on 6.1kg/ ton paper was bleached after 9 seconds, changed in the washing bath, washed 52 seconds;
(7) plasticizing operation: the film after will bleaching, washing, change in the plasticizing pond, temperature is controlled at 56 ℃, and adding concentration is the glycerine of 121g/L, and add-on is a 278kg/ ton paper, and pH value is controlled at 8.6, plastifies 9 seconds;
(8) dry damping operation: the film after will plastifying changes drying room over to, carries out heat-wind circulate drying, and temperature is 140 ℃, after dry 104 seconds, changes between damping, and temperature is controlled at 47 ℃, and relative humidity is controlled at 82%RH, and damping 7 seconds makes finished product.
The aviation cellulose membrane specially of present embodiment preparation, following through the detection technique index:
| Quantitatively | 66.4g/m 2 | Moisture, | 7.6％ |
| Tensile strength | ≥50.30N/15mm | Elongation | 21.91％ |
| The thickness banner is poor | 1.3μm | Thickness | 50μm |
| Fluidizer | 25.5％ | Transparency | 47 layers |
The cellulose membrane of present embodiment preparation, in practical application, it is even to have thickness, and intensity is high, no static, can be used in manufacturing used by aviation instrument panel industry.
Embodiment 5
(1) raw material is chosen operation: choose the cotton pulp of whiteness 82% and the wood pulp of whiteness 93%, weight ratio is 50% cotton pulp and 50% wood pulp;
(2) viscose glue preparation section:
A, with the cotton pulp wood pulp of choosing after alkalization, squeezing, aging, yellow, make cellulose xanthate;
B, with the cellulose xanthate after the yellow, adding concentration is the NaOH solution of 15g/L, dissolves, the volume of every batch of cellulose xanthate is 12.0m
3, NaOH solution add-on 132kg/ ton paper, temperature is controlled at 17.5 ℃, makes viscose glue after the dissolving, the composition of its viscose glue: α-cell 8.55%, NaOH 5.48%, viscosity 60sec, ammonium value 6.8ml, all the other are water;
C, the viscose glue after will dissolving carry out maturation, and temperature is controlled at 41 ℃, and the time is controlled at 9.6h, the index of viscose glue: α-cell 8.8% after the maturation, NaOH5.36%, viscosity 54sec, ammonium value 6.6ml;
D, with the viscose glue after the maturation, after filtering, get into the deaeration tower; Temperature of cooling water is controlled at 20 ℃, and its deaeration tower temperature in is controlled at 41 ℃, 33 ℃ of deaeration tower temperature out controls; Time is controlled at 2.7min, makes the spinning viscose glue after the deaeration, and spinning viscose glue index: α-cell 9.03%; NaOH 5.15%, viscosity 44sec, ammonium value 4.8ml;
(3) film preparation operation: the spinning viscose glue makes film through in pipe-line transportation to the film forming device;
(4) washing step: the film after the moulding is changed in the washing bath, and water temperature is 95 ℃, washes 36 seconds;
(5) desulfurization process: the film after the pickling is changed in the desulfurizer, and adding concentration is the sodium hydroxide of 3.0g/L, and add-on 3.1kg/ ton paper, desulfurization temperature are 103 ℃, and desulfurization changed in the washing bath after 8 seconds, washed 26 seconds;
(6) bleaching process: the film after the desulfurization is put into bleaching tank, and adding concentration is the 3.7g/L Youxiaolin, and add-on 4.9kg/ ton paper was bleached after 5 seconds, changed in the washing bath, washed 60 seconds;
(7) plasticizing operation: the film after will bleaching, washing, change in the plasticizing pond, temperature is controlled at 65 ℃, and adding concentration is the glycerine of 125g/L, and add-on is a 280kg/ ton paper, and pH value is controlled at 9.6, plastifies 5 seconds;
(8) dry damping operation: the film after will plastifying changes drying room over to, carries out heat-wind circulate drying, and temperature is 140 ℃, after dry 110 seconds, changes between damping, and temperature is controlled at 55 ℃, and relative humidity is controlled at 90%RH, and damping 15 seconds makes finished product.
The aviation cellulose membrane specially of present embodiment preparation, following through the detection technique index:
| Quantitatively | 68.3g/m 2 | Moisture, | 7.7％ |
| Tensile strength | ≥52.14N/15mm | Elongation | 22.14％ |
| The thickness banner is poor | 1.4μm | Thickness | 51μm |
| Fluidizer | 27.6％ | Transparency | 45 layers |
The cellulose membrane of present embodiment preparation, in practical application, degradable has reached environmental protection requirement, can be used in to make the used by aviation instrument panel industry.
Embodiment 6
(1) raw material is chosen operation: choose the cotton pulp of whiteness 83% and the wood pulp of whiteness 92%, weight ratio is 40% cotton pulp and 60% wood pulp;
(2) viscose glue preparation section:
A, with the cotton pulp wood pulp of choosing after alkalization, squeezing, aging, yellow, make cellulose xanthate;
B, with the cellulose xanthate after the yellow, adding concentration is the NaOH solution of 14g/L, dissolves, the volume of every batch of cellulose xanthate is 13.0m
3, NaOH solution add-on 135kg/ ton paper, temperature is controlled at 18 ℃, makes viscose glue after the dissolving, the composition of its viscose glue: α-cell 8.65%, NaOH 5.43%, viscosity 59sec, ammonium value 7.5ml, all the other are water;
C, the viscose glue after will dissolving carry out maturation, and temperature is controlled at 42 ℃, and the time is controlled at 10h, the index of viscose glue: α-cell 8.85% after the maturation, and NaOH 5.32%, viscosity 56sec, ammonium value 6.2ml;
D, with the viscose glue after the maturation, after filtering, get into the deaeration tower; Temperature of cooling water is controlled at 20 ℃, and its deaeration tower temperature in is controlled at 42 ℃, 35 ℃ of deaeration tower temperature out controls; Time is controlled at 3min, makes the spinning viscose glue after the deaeration, spinning viscose glue index: α-cell9.10%; NaOH5.3%, viscosity 48sec, ammonium value 5.2ml;
(3) film preparation operation: the spinning viscose glue makes film through in pipe-line transportation to the film forming device;
(4) washing step: the film after the moulding is changed in the washing bath, and water temperature is 89 ℃, washes 40 seconds;
(5) desulfurization process: the film after the pickling is changed in the desulfurizer, and adding concentration is the sodium hydroxide of 2.4g/L, and add-on 5.3kg/ ton paper, desulfurization temperature are 110 ℃, and desulfurization changed in the washing bath after 9 seconds, washed 30 seconds;
(6) bleaching process: the film after the desulfurization is put into bleaching tank, and adding concentration is the 5.0g/L Youxiaolin, and add-on 7kg/ ton paper was bleached after 10 seconds, changed in the washing bath, washed 60 seconds;
(7) plasticizing operation: the film after will bleaching, washing, change in the plasticizing pond, temperature is controlled at 52 ℃, and adding concentration is the glycerine of 128g/L, and add-on is a 292kg/ ton paper, and pH value is controlled at 10, plastifies 10 seconds;
(8) dry damping operation: the film after will plastifying changes drying room over to and carries out heat-wind circulate drying, and temperature is 140 ℃, after dry 110 seconds, changes between damping, and temperature is controlled at 55 ℃, and relative humidity is controlled at 85%RH, and damping 15 seconds makes finished product.
The aviation cellulose membrane specially of present embodiment preparation, following through the detection technique index:
| Quantitatively | 69.2g/m 2 | Moisture, | 7.6％ |
| Tensile strength | 53.26N/15mm | Elongation | 24.56％ |
| The thickness banner is poor | 1.2μm | Thickness | 52μm |
| Fluidizer | 28.4％ | Transparency | 45 layers |
The cellulose membrane of present embodiment preparation, in practical application, degradable has reached environmental protection requirement, and it is even to have thickness, and intensity is high, good toughness, no static, good elongation and tensile strength can be used in manufacturing used by aviation instrument panel industry.
Claims (1)
1. the preparation method of a cellulose membrane specially used by aviation instrument panel; It is characterized in that: may further comprise the steps: raw material is chosen operation, viscose glue preparation section, film preparation operation, washing step, desulfurization process, bleaching process, plasticizing operation, dry damping operation and is made finished product, and concrete steps are following:
(1) raw material is chosen operation: choose the cotton pulp of whiteness >=82% and the wood pulp of whiteness >=91%, weight ratio is 30%～50% cotton pulp and 70%～50% wood pulp;
(2) viscose glue preparation section:
A, with the cotton pulp wood pulp of choosing after alkalization, squeezing, aging, yellow, make cellulose xanthate;
B, with the cellulose xanthate after the yellow, adding concentration is the NaOH solution of 10～15g/L, dissolves, the volume of every batch of cellulose xanthate is 11.0～13.0m
3, NaOH solution add-on 115～135kg/ ton paper, temperature is controlled at 16-18 ℃, dissolves; Make viscose glue after the dissolving, the composition of its viscose glue: α-cell 8.35～8.65%, NaOH 5.2～5.5%; Viscosity 50～60sec, ammonium value 6.2～7.5ml, all the other are water;
C, the viscose glue after will dissolving carry out maturation, and temperature is controlled between 39～42 ℃, and the time is controlled at 9～10h, viscose glue index: α-cell 8.5～8.85% after the maturation, and NaOH 5.3～5.5%, viscosity 47～56sec, ammonium value 5.5～6.2ml;
D, with the viscose glue after the maturation, after filtering, get into the deaeration tower; Temperature of cooling water is controlled between 16～20 ℃, and deaeration tower temperature in is controlled at 39～42 ℃, 30～35 ℃ of deaeration tower temperature out controls; Time is controlled at 2.5～3min, makes the spinning viscose glue after the deaeration, and spinning viscose glue index: α-cell 8.8～9.10%; NaOH 5.0～5.3%, viscosity 40～48sec, ammonium value 4.6～5.2ml;
(3) washing step: the film after the moulding is changed in the washing bath, and water temperature is between 85～100 ℃, washes 25～45 seconds;
(4) desulfurization process: the film after the pickling is changed in the desulfurizer, and adding concentration is the sodium hydroxide of 2.0～3.0g/L, add-on 3.0～6.0kg/ ton paper, and desulfurization temperature is 90～110 ℃, desulfurization changed in the washing bath after 5～9 seconds, washed 10～30 seconds;
(5) bleaching process: the film after the desulfurization is put into bleaching tank, and adding concentration is 3.0～5.0g/L Youxiaolin, and add-on 3.5～7kg/ ton paper was bleached after 4～10 seconds, changed in the washing bath, washed 40～60 seconds;
(6) plasticizing operation: the film after will bleaching, washing, change in the plasticizing pond, temperature is controlled at 52～65 ℃, and adding concentration is the glycerine of 110～130g/L, and add-on is 250～300kg/ ton paper, and pH value is controlled at 8.5～10, plastifies 4～10 seconds;
(7) dry damping operation: the film after will plastifying changes drying room over to, carries out heat-wind circulate drying, and temperature is 140 ℃; After dry 90～110 seconds, change between damping, temperature is controlled at 45～55 ℃; Relative humidity is controlled at 60～90%RH; Damping 6～15 seconds, moisture controlled make aviation cellulose membrane specially finished product between 6～10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100167795A CN101649061B (en) | 2009-07-13 | 2009-07-13 | Preparing method of cellulose membrane specially used by aviation instrument panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100167795A CN101649061B (en) | 2009-07-13 | 2009-07-13 | Preparing method of cellulose membrane specially used by aviation instrument panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101649061A CN101649061A (en) | 2010-02-17 |
| CN101649061B true CN101649061B (en) | 2012-06-27 |
Family
ID=41671401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100167795A Active CN101649061B (en) | 2009-07-13 | 2009-07-13 | Preparing method of cellulose membrane specially used by aviation instrument panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101649061B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850459A (en) * | 2012-09-24 | 2013-01-02 | 成都丽雅纤维股份有限公司 | Method for producing cellulose membrane by cotton-wood-bamboo composite pulp |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504314B (en) * | 2011-11-07 | 2013-07-31 | 潍坊恒联玻璃纸有限公司 | Method for preparing release regenerated cellulose membrane |
| CN103012825A (en) * | 2012-11-29 | 2013-04-03 | 安徽徽宁电器仪表集团有限公司 | Preparation method of instrument material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377428A (en) * | 1999-10-07 | 2002-10-30 | 阿塞如施瓦兹有限公司 | Method for producing cellulose shaped-bodies |
| CN101153207A (en) * | 2007-09-17 | 2008-04-02 | 潍坊恒联玻璃纸有限公司 | Method for manufacturing film special for rubber belt |
| CN101302298A (en) * | 2008-06-04 | 2008-11-12 | 潍坊恒联玻璃纸有限公司 | High heat-sealing thin film and preparation thereof |
-
2009
- 2009-07-13 CN CN2009100167795A patent/CN101649061B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377428A (en) * | 1999-10-07 | 2002-10-30 | 阿塞如施瓦兹有限公司 | Method for producing cellulose shaped-bodies |
| CN101153207A (en) * | 2007-09-17 | 2008-04-02 | 潍坊恒联玻璃纸有限公司 | Method for manufacturing film special for rubber belt |
| CN101302298A (en) * | 2008-06-04 | 2008-11-12 | 潍坊恒联玻璃纸有限公司 | High heat-sealing thin film and preparation thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850459A (en) * | 2012-09-24 | 2013-01-02 | 成都丽雅纤维股份有限公司 | Method for producing cellulose membrane by cotton-wood-bamboo composite pulp |
| CN102850459B (en) * | 2012-09-24 | 2014-11-26 | 成都丽雅纤维股份有限公司 | Method for producing cellulose membrane by cotton-wood-bamboo composite pulp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101649061A (en) | 2010-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104328523B (en) | Viscose comprising Graphene and preparation method thereof | |
| CN105481989B (en) | Glass fiber impregnating compound added with modified starch | |
| CN102127241B (en) | Method for preparing plant cellulose film by taking herbaceous plant as raw material | |
| CN104372701B (en) | Superelevation glues purified cotton production technology | |
| DE602005014228D1 (en) | PROCESS FOR THE PRODUCTION OF ETHANOL | |
| CN103552353A (en) | Method for preparing holocellulose composite laminated material | |
| CN104004207B (en) | Ionic liquid prepares corn cob fiber cellulosic material or the method for blended fiber material | |
| CN101649061B (en) | Preparing method of cellulose membrane specially used by aviation instrument panel | |
| WO2016197938A1 (en) | Method for manufacturing degradable sponge product | |
| CN112778578B (en) | Plant plastic and preparation method thereof | |
| CN104788575A (en) | Cellulose derivative containing DOPO structure, and preparation method thereof | |
| CN102828305A (en) | Textile material | |
| CN104313876A (en) | Method for modifying natural fibers for anion polymer nylon 6 reaction | |
| CN105199122A (en) | Preparation method of hemicellulose and gelatin composite biofilm | |
| CN104045839A (en) | Dissolution method of cellulose subjected to anhydride microwave modification | |
| CN101168602B (en) | Corn protein/cellulose mixed solution, and preparation method and use thereof | |
| CN103290503B (en) | Cellulosic chemical modification and continuous low-temperature dissolving spinning technology and equipment | |
| CN101649059B (en) | Preparing method of antibacterial cellulose membrane | |
| CN114479142B (en) | Low-temperature acid and alkali resistant glass stained paper and manufacturing process thereof | |
| CN102504314B (en) | Method for preparing release regenerated cellulose membrane | |
| CN101649060B (en) | Preparing method of cellulose membrane specially used by high-whiteness adhesive tape | |
| CN115418014A (en) | High-strength wood-based transparent plastic film and preparation method thereof | |
| CN102167996B (en) | Wig shampoo, preparation process thereof, and method for clearing up wig | |
| CN101168603A (en) | Soybean separation protein/cellulose mixed solution, and preparation method and use thereof | |
| CN112297277B (en) | Preparation method of bamboo nanofiber polyethylene multilayer composite gas barrier material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261041 No. 409 East Wolong street, Kuiwei District, Shandong, Weifang Patentee after: SHANDONG HENGLIAN NEW MATERIALS CO., LTD. Address before: 261041 No. 409 East Wolong street, Kuiwei District, Shandong, Weifang Patentee before: Weifang Henglian Cellophane Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |
Address after: No.8019 Xinsha Road, Guti street, Hanting District, Weifang City, Shandong Province Patentee after: SHANDONG HENGLIAN NEW MATERIALS Co.,Ltd. Address before: 261041 No. 409 East Wolong street, Kuiwei District, Shandong, Weifang Patentee before: SHANDONG HENGLIAN NEW MATERIALS Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |