CN117822213A - Food oil absorbing paper and manufacturing process - Google Patents
Food oil absorbing paper and manufacturing process Download PDFInfo
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- CN117822213A CN117822213A CN202310287102.5A CN202310287102A CN117822213A CN 117822213 A CN117822213 A CN 117822213A CN 202310287102 A CN202310287102 A CN 202310287102A CN 117822213 A CN117822213 A CN 117822213A
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- plant fiber
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- oil absorbing
- absorbing paper
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- 235000013305 food Nutrition 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 40
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 6
- 208000034530 PLAA-associated neurodevelopmental disease Diseases 0.000 claims description 6
- 238000009960 carding Methods 0.000 claims description 6
- 238000005098 hot rolling Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000011112 process operation Methods 0.000 claims description 2
- 238000013329 compounding Methods 0.000 abstract description 2
- 239000004626 polylactic acid Substances 0.000 description 22
- 229920000747 poly(lactic acid) Polymers 0.000 description 21
- 235000014676 Phragmites communis Nutrition 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 235000013311 vegetables Nutrition 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229960000583 acetic acid Drugs 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012362 glacial acetic acid Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 229920006449 PE+PET Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000037149 energy metabolism Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000011174 green composite Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006126 semicrystalline polymer Polymers 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
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Abstract
The invention discloses food oil absorbing paper and a manufacturing process, which belong to the technical field of oil absorbing paper manufacturing and solve the problem of compounding PLA short fibers and non-woven fabrics.
Description
Technical Field
The invention relates to the field of oil absorption paper manufacture, in particular to food oil absorption paper and a manufacturing process thereof.
Background
At present, the oil absorbing paper is made of PP, PE+PP and PE+PET, and is not degradable. And is easy to pollute the environment.
Polylactic acid (PLA) has the advantages of excellent biocompatibility, easy degradation, high strength, strong plasticity, easy processing and forming and the like, and is favored by the industry of high polymer materials in recent years. However, the defects of high brittleness, poor thermal performance, difficult control of degradation speed and the like limit the use effect, so modification research is needed. The plant fiber is light, low in cost, high in specific strength and degradable, has been developed rapidly in recent years as a reinforcing material for reinforcing polylactic acid, so that the material performance can be improved, and the composite material is endowed with complete degradation performance. The plant fiber reinforced polylactic acid composite material can be called as a green composite material, and can effectively relieve the environmental problem and the impact of energy crisis.
Disclosure of Invention
Aiming at the defects of the prior art, the invention at least solves the technical problems in the related art to a certain extent, provides the food oil-absorbing paper and the manufacturing process, and has the advantages of biodegradability, remarkable oil-absorbing effect and compliance with food-grade safety standards.
In order to solve the technical problems, the technical scheme of the invention is as follows: a food oil absorbing paper comprises modified vegetable fiber PLA and non-woven fabrics, wherein the vegetable fiber PLA is 10-1000g, and is formed by hot rolling or die stamping.
Preferably, the plant fiber PLA takes one or more specifications of 2D multiplied by 64, 2D multiplied by 38, 2D multiplied by 51, 3D multiplied by 38, 3D multiplied by 64 and 6D multiplied by 64, and is combined with one or more of needled non-woven fabric, water needled non-woven fabric and hot air non-woven fabric.
A manufacturing process of food oil absorbing paper, which is used for manufacturing the food oil absorbing paper,
step one: selecting raw materials, selecting plant fiber PLA to take 10-1000g, and selecting non-woven fabrics;
step two: the plant fiber PLA is punched through hot rolling or a model, and the non-woven fabric is subjected to needling process, hydroentangling process or hot air process operation;
step three: uniformly mixing plant fiber PLA and non-woven fabric fiber, opening, carding and forming.
Preferably, the needling process is used to produce a cloth from the plant fiber PLA, comprising:
the method comprises the steps of proportioning fibers with different specifications through continuous electronic weighing, mixing raw materials with technological requirements, performing secondary opening and large-bin cotton mixing to achieve the purpose of fully mixing and opening various raw materials, then performing double-deck carding and net forming, additionally arranging automatic unreeling and reinforcement base cloth in the middle of a double-deck combined net, merging sandwich two-layer cotton net one-layer base cloth, performing preliminary entanglement and shaping through a CBF feeding device, performing needling up and down, reinforcing entanglement needling up and down, repairing the upper and lower sides, and performing cloth storage winding.
Compared with the background art, the invention has the technical effects that:
good biocompatibility: the biocompatibility is the most outstanding characteristic of PLA, and PLA is hydrolyzed in human body to generate lactic acid monomer, then the lactic acid monomer is converted into light base acid under the action of enzyme, and finally the light base acid is decomposed into water and carbon dioxide by human body energy metabolism or excreted by human body; easy processing and forming: PLA is a thermoplastic material, has a melting point of 160-220 ℃, has good thermal stability, and can be molded in various modes such as extrusion calendaring molding, blow molding, hot press molding, fiber spinning and the like. Higher transparency: PLA is a semi-crystalline polymer, which has better optical properties than PBS and modified starch materials. Environmental friendliness: the common plastic is difficult to decompose in soil, so that most plastic products are treated in an incineration manner after being used, so that a large amount of toxic and harmful gases are generated, and a large amount of greenhouse gases are discharged, thereby causing environmental pollution; and PLA buried in soil can be naturally degraded in a form of hydrolysis, microbial degradation and enzymolysis. PLA is first hydrolyzed in soil by molecular skeleton to form a relatively low molecular weight component, which is then further degraded to form a small molecular product, which is ultimately biodegraded to form water and carbon dioxide.
Detailed Description
The following detailed description of the present invention is provided to facilitate understanding and appreciation of the inventive aspects.
Examples:
a food oil absorbing paper comprises modified vegetable fiber PLA and non-woven fabrics, wherein the vegetable fiber PLA is 10-1000g, and is formed by hot rolling or die stamping.
The plant fiber PLA takes one or more specifications of 2D multiplied by 64, 2D multiplied by 38, 2D multiplied by 51, 3D multiplied by 38, 3D multiplied by 64 and 6D multiplied by 64, and is combined with one or more of needled non-woven fabric, spunlaced non-woven fabric or hot air non-woven fabric.
The following provides a method for preparing the modified plant fiber PLA.
Step one: purifying reed fiber. The method comprises the following steps: reed diameter is cut into blocks with the length of about 10mm, then reed diameter is put into a mixed solution of hydrogen peroxide and glacial acetic acid (V hydrogen peroxide: V glacial acetic acid=1:1), and after being treated for 18 hours at 60 ℃, the reed diameter is washed by distilled water to obtain a fiber suspension. Repeatedly sieving with 200 mesh sieve to remove cut short fiber, and freeze drying. And (3) putting the dried fiber into a NaOH solution with the mass fraction of 18% for 6 hours, washing with distilled water to be neutral, and putting into a freeze drying box for drying for 24 hours to obtain the unmodified reed fiber.
Step two: and (3) preparing modified reed fibers. The method comprises the following steps: 750g of reed fiber is added into a large beaker filled with 3000mL of mixed solution of deionized water and ethanol (V deionized water: V ethanol=4:1), stirred and dispersed uniformly, then a certain amount of glacial acetic acid is added, and after further stirring uniformly, deionized water is continuously added into the beaker until the pH value in the mixed solution is stabilized at 3-4. Then 1750mL of silane coupling agent KH570 is added into the mixed system, stirring is continued, and the reaction is stopped after 2h of reaction. And then taking deionized water as a detergent, centrifugally washing, and then placing the reed into a cold drying box for drying for 24 hours to prepare the silane coupling agent Modified Reed Fiber (MRF).
Step three: and (5) compounding materials. Weighing a certain amount of modified reed fibers and PLA, adding into a high-speed mixer, stirring and mixing for 5min, and taking out; then the mixed materials are put into a double-screw extruder for melt blending extrusion granulation, and the specific process conditions are as follows: according to the experimental result, the temperatures of all areas of the heating section are 104, 100, 101, 104, 109, 125, 110, 99, 98 ℃ and the temperature of the machine head is set to be 95 ℃; the rotating speed of the screw rod of the host machine is 75r/min; the feeding speed was 14r/min. And (3) putting the prepared composite material particles into a blast drying box, and drying at 60 ℃ for 36 hours to obtain dry MRF/PLA particles. And then adding the dried composite material particles into an injection molding machine to perform injection molding of standard test bars, wherein the injection molding process conditions are as follows: according to the experimental result, the temperature of each section of the charging barrel is sequentially controlled to be 185, 190, 190, 185 and 180 ℃, the mold temperature is 50 ℃, and the injection pressure is 50Mpa.
A manufacturing process of food oil absorbing paper is used for the food oil absorbing paper, and comprises the following steps: selecting raw materials, selecting plant fiber PLA to take 10-1000g, and selecting non-woven fabrics.
Step two: and (3) hot rolling or mould stamping is carried out on the plant fiber PLA, and the operation of needling process, hydroentangling process or hot air process is carried out on the non-woven fabric.
Step three: uniformly mixing plant fiber PLA and non-woven fabric fiber, opening, carding and forming.
The needling process is adopted to manufacture cloth for the plant fiber PLA, comprising the following steps:
the method comprises the steps of proportioning fibers with different specifications through continuous electronic weighing, mixing raw materials with technological requirements, performing secondary opening and large-bin cotton mixing to achieve the purpose of fully mixing and opening various raw materials, then performing double-deck carding and net forming, additionally arranging automatic unreeling and reinforcement base cloth in the middle of a double-deck combined net, merging sandwich two-layer cotton net one-layer base cloth, performing preliminary entanglement and shaping through a CBF feeding device, performing needling up and down, reinforcing entanglement needling up and down, repairing the upper and lower sides, and performing cloth storage winding.
Of course, the above is only a typical example of the invention, and other embodiments of the invention are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the invention claimed.
Claims (4)
1. A food oil absorbing paper is characterized in that: comprises the modified plant fiber PLA and non-woven fabrics which are compounded, wherein 10-1000g of the plant fiber PLA is obtained by hot rolling or mould stamping.
2. The food oil absorbing paper according to claim 1, characterized in that: the plant fiber PLA takes one or more specifications of 2D multiplied by 64, 2D multiplied by 38, 2D multiplied by 51, 3D multiplied by 38, 3D multiplied by 64 and 6D multiplied by 64, and is combined with one or more of needled non-woven fabric, spunlaced non-woven fabric or hot air non-woven fabric.
3. A process for manufacturing the food oil absorbing paper according to claim 1 or 2, characterized in that:
step one: selecting raw materials, selecting plant fiber PLA to take 10-1000g, and selecting non-woven fabrics;
step two: the plant fiber PLA is punched through hot rolling or a model, and the non-woven fabric is subjected to needling process, hydroentangling process or hot air process operation;
step three: uniformly mixing plant fiber PLA and non-woven fabric fiber, opening, carding and forming.
4. A process for manufacturing a food oil absorbing paper according to claim 3, characterized in that: the needling process is adopted to manufacture cloth for the plant fiber PLA, comprising the following steps:
the method comprises the steps of proportioning fibers with different specifications through continuous electronic weighing, mixing raw materials with technological requirements, performing secondary opening and large-bin cotton mixing to achieve the purpose of fully mixing and opening various raw materials, then performing double-deck carding and net forming, additionally arranging automatic unreeling and reinforcement base cloth in the middle of a double-deck combined net, merging sandwich two-layer cotton net one-layer base cloth, performing preliminary entanglement and shaping through a CBF feeding device, performing needling up and down, reinforcing entanglement needling up and down, repairing the upper and lower sides, and performing cloth storage winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310287102.5A CN117822213A (en) | 2023-03-23 | 2023-03-23 | Food oil absorbing paper and manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310287102.5A CN117822213A (en) | 2023-03-23 | 2023-03-23 | Food oil absorbing paper and manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117822213A true CN117822213A (en) | 2024-04-05 |
Family
ID=90521593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310287102.5A Pending CN117822213A (en) | 2023-03-23 | 2023-03-23 | Food oil absorbing paper and manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117822213A (en) |
-
2023
- 2023-03-23 CN CN202310287102.5A patent/CN117822213A/en active Pending
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