CN103409938A - Preparation method of shredded ginger fiber/ginger slag/polypropylene lightweight composite material - Google Patents
Preparation method of shredded ginger fiber/ginger slag/polypropylene lightweight composite material Download PDFInfo
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- CN103409938A CN103409938A CN2013103564266A CN201310356426A CN103409938A CN 103409938 A CN103409938 A CN 103409938A CN 2013103564266 A CN2013103564266 A CN 2013103564266A CN 201310356426 A CN201310356426 A CN 201310356426A CN 103409938 A CN103409938 A CN 103409938A
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Abstract
The invention provides a preparation method of a shredded ginger fiber/ginger slag/polypropylene lightweight composite material. The preparation method is characterized in that the composite material takes shredded ginger fiber as a reinforcement and polypropylene fiber as a matrix; a preforming structure of the composite material is of a sandwiched layered structure, wherein the shredded ginger fiber serving as the reinforcement and polypropylene short fiber serving as the matrix are arranged at the upper layer and the lower layer respectively, and mixed hybrid ginger slag/polypropylene short fiber is arranged at the intermediate layer. The preparation method comprises the following steps: mixing, laminating, prepressing, hot-pressing and cooling. The shredded ginger fiber/ginger slag/polypropylene lightweight composite material is light in weight, has strong antibacterial property and thermoplasticity on escherichia coli and staphylococcus aureus and can be repeatedly processed. According to the preparation method provided by the invention, byproducts of fresh ginger products, such as fresh ginger juice and ginger powder as well as active components of fresh ginger and the like generated in the processing procedures of fresh ginger squeezing, extracting and the like are effectively utilized.
Description
Technical field
The present invention relates to a kind of preparation method of biomass composite, the preparation method of especially a kind of shredded ginger fiber/ginger slag/polypropylene light hot plastic composites, belong to the composite preparation field.
Background technology
As everyone knows, ginger is flavouring indispensable in daily life, has again medical value simultaneously.Along with the raising of people's living standard, the demand of instant food, health food is improved day by day, therefore, occurred take that ginger is raw material, through process such as extraction, squeezings, prepare the products such as ginger juice, ginge extract paste, ginger powder, ginger active component.Simultaneously, the ginger processing industry has been brought a large amount of accessory substances such as shredded ginger fiber, ginger slag etc.Because these accessory substances also are difficult to utilize at present, mostly burn or become organic fertilizer.Research shows, ginger has very strong antibacterial action, applicant's test shows that above-mentioned accessory substance shredded ginger fiber, ginger slag etc. have stronger antibacterial action to Escherichia coli, staphylococcus aureus, simultaneously, these main components are that cellulosic accessory substance inside has a lot of spaces, have lightweight characteristics.The value that has the accessory substances such as shredded ginger fiber, ginger slag of premium properties for raising, specially propose the present invention.
Summary of the invention
Based at present existing recycling ginger processing byproduct shredded ginger fiber, the shortage of ginger slag technology and the premium properties of these accessory substances, the present invention proposes a kind ofly to take simply, efficiently ginger processing byproduct shredded ginger fiber, ginger slag and be raw material, and preparation has the method for the light hot plastic composites of antibacterial functions.It is characterized in that, described composite be take the shredded ginger fiber and is reinforcement, the polypropylene of take is matrix, described composite preform constructions is " sandwich " layer structure, upper and lower layer be take the shredded ginger fiber and is matrix as reinforcement, the polypropylene short fiber of take, and intermediate layer is the ginger slag/polypropene staple mixed; Described preparation method comprises following processing step: mixing → laying → precompressed → hot pressing → cooling, and wherein each process feature is as follows:
The first step: mix
By the shredded ginger fiber with carry out combing after the polypropylene short fiber mixes, the mass percent of described shredded ginger fiber and polypropylene short fiber is 50～65%: 35～50%, described polypropylene short fiber fineness is 10～20D, described polypropylene staple length is 30～50mm; The ginger slag is mixed with the polypropylene short fiber, and described polypropylene short fiber fineness is 10～20D, and length is 2～8mm, and the mass percent of described ginger slag and polypropylene short fiber is 60～70%: 30～40%;
Second step: laying
Evenly be laid on the shredded ginger fiber/polypropylene short fiber of mixing, carding upper and lower two-layer, in the middle of the material of ginger slag/polypropylene short fiber mixing evenly was laid on, upper strata, intermediate layer and lower floor's mass percent were respectively 20～25%: 40～50%: 20～25%;
The 3rd step: precompressed
Composite material on hot press, that the step 2 laying is good carries out precompressed, and the precompressed temperature is normal temperature～80 ℃, and preload pressure is 5～10MPa, and squeeze time is 4～10min, then release;
The 4th step: hot pressing
Stratified material after precompressed is placed on hot press and carries out hot pressing, and hot pressing temperature is 170～195 ℃, and pressure is 3～8MPa, and hot pressing time is 10～20min;
The 5th step: cooling
By the cooling light-duty Thermoplastic Laminates that obtains having anti-microbial property on the coldplate of logical recirculated water of the composite after hot pressing.
Shredded ginger fiber of the present invention, ginger slag are the accessory substances in the process such as ginger squeezing, extraction such as ginger food such as ginger juice, ginger powder, ginger active component, and described shredded ginger average fiber length is 35～55mm, and average fineness is 5～10tex; Described ginger slag is mainly CORTEX ZINGIBERIS RHIZOMAE and short ginger fiber broken, crushing, and its extreme length is shorter than 20mm.
In step 1 of the present invention, two kinds of polypropylene are the plain polypropylene staple fibre that does not pass through modification, and its fusing point is 160～168 ℃.
The preparation method of shredded ginger fiber of the present invention/ginger slag/polypropylene light hot plastic composites is characterized in that: the thickness of described composite is 4～8mm.
The present invention adopts " sandwich " stratiform laying technology, on the one hand can be simultaneously, full use shredded ginger fiber and ginger slag, on the other hand, under the humidification of that grow, shredded ginger fiber that mechanical property is good, also can guarantee the mechanical performance of composite.For guaranteeing that the composite quality is light, thickness is thick, the hot pressing parameters combination of the present invention adopts long-time, little pressure, high-temperature.
Resulting shredded ginger fiber/not only quality is light for ginger slag/PP composite material in the present invention, also has Escherichia coli, stronger antibiotic property and the thermoplasticity of staphylococcus aureus, reusable.The present invention can effectively utilize the accessory substances in the process such as ginger squeezing, extraction such as ginger food such as ginger juice, ginger powder, ginger active component, realizes that the ginger whole body is all precious, improves the added value of ginger.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1: the preparation method of a kind of shredded ginger fiber/ginger slag/polypropylene light hot plastic composites comprises following processing step:
The first step: mix
By the shredded ginger fiber with carry out combing after the polypropylene short fiber mixes, the mass percent of described shredded ginger fiber and polypropylene short fiber is 40%: 60%, described polypropylene short fiber fineness is 10D, described polypropylene staple length is 30mm; The ginger slag is mixed with the polypropylene short fiber, and described polypropylene short fiber fineness is 10D, and length is 2mm, and the mass percent of described ginger slag and polypropylene short fiber is 60%: 40%; Described shredded ginger average fiber length is 35mm, and average fineness is 5tex; Described ginger slag is mainly CORTEX ZINGIBERIS RHIZOMAE and short ginger fiber broken, crushing, and its extreme length is shorter than 20mm;
Second step: laying
By mixing, the shredded ginger fiber/polypropylene short fiber of carding evenly is laid on upper and lower two-layerly, in the middle of the material that ginger slag/polypropylene short fiber is mixed evenly was laid on, upper strata, intermediate layer and lower floor's mass percent were respectively 20%: 60%: 20%;
The 3rd step: precompressed
Composite material on hot press, that the step 2 laying is good carries out precompressed, and the precompressed temperature is 80 ℃, and preload pressure is 5MPa, and squeeze time is 10min, then release;
The 4th step: hot pressing
Stratified material after precompressed is placed on hot press and carries out hot pressing, and hot pressing temperature is 170 ℃, and pressure is 8MPa, and hot pressing time is 20min;
The 5th step: cooling
By the cooling light-duty Thermoplastic Laminates that obtains having anti-microbial property on the coldplate of logical recirculated water of the composite after hot pressing, described sheet metal thickness is 4mm.
Embodiment 2: the preparation method of a kind of shredded ginger fiber/ginger slag/polypropylene light hot plastic composites comprises following processing step:
The first step: mix
By the shredded ginger fiber with carry out combing after the polypropylene short fiber mixes, the mass percent of described shredded ginger fiber and polypropylene short fiber is 60%: 40%, described polypropylene short fiber fineness is 20D, described polypropylene staple length is 50mm; The ginger slag is mixed with the polypropylene short fiber, and described polypropylene short fiber fineness is 20D, and length is 8mm, and the mass percent of described ginger slag and polypropylene short fiber is 70%: 30%; Described shredded ginger average fiber length is 55mm, and average fineness is 10tex; Described ginger slag is mainly CORTEX ZINGIBERIS RHIZOMAE and short ginger fiber broken, crushing, and its extreme length is shorter than 20mm;
Second step: laying
By mixing, the shredded ginger fiber/polypropylene short fiber of carding evenly is laid on upper and lower two-layerly, in the middle of the material that ginger slag/polypropylene short fiber is mixed evenly was laid on, upper strata, intermediate layer and lower floor's mass percent were respectively 25%: 50%: 25%;
The 3rd step: precompressed
Composite material on hot press, that the step 2 laying is good carries out precompressed, and the precompressed temperature is normal temperature, and preload pressure is 10MPa, and squeeze time is 4min, then release;
The 4th step: hot pressing
Stratified material after precompressed is placed on hot press and carries out hot pressing, and hot pressing temperature is 195 ℃, and pressure is 3MPa, and hot pressing time is 10min;
The 5th step: cooling
By the cooling light-duty Thermoplastic Laminates that obtains having anti-microbial property on the coldplate of logical recirculated water of the composite after hot pressing, described sheet metal thickness is 8mm.
Embodiment 3: the preparation method of a kind of shredded ginger fiber/ginger slag/polypropylene light hot plastic composites comprises following processing step:
The first step: mix
By the shredded ginger fiber with carry out combing after the polypropylene short fiber mixes, the mass percent of described shredded ginger fiber and polypropylene short fiber is 55%: 45%, described polypropylene short fiber fineness is 15D, described polypropylene staple length is 40mm; The ginger slag is mixed with the polypropylene short fiber, and described polypropylene short fiber fineness is 15D, and length is 5mm, and the mass percent of described ginger slag and polypropylene short fiber is 65%: 35%; Described shredded ginger average fiber length is 45mm, and average fineness is 8tex; Described ginger slag is mainly CORTEX ZINGIBERIS RHIZOMAE and short ginger fiber broken, crushing, and its extreme length is shorter than 20mm;
Second step: laying
By mixing, the shredded ginger fiber/polypropylene short fiber of carding evenly is laid on upper and lower two-layerly, in the middle of the material that ginger slag/polypropylene short fiber is mixed evenly was laid on, upper strata, intermediate layer and lower floor's mass percent were respectively 23%: 54%: 23%;
The 3rd step: precompressed
Composite material on hot press, that the step 2 laying is good carries out precompressed, and the precompressed temperature is 90 ℃, and preload pressure is 8MPa, and squeeze time is 6min, then release;
The 4th step: hot pressing
Stratified material after precompressed is placed on hot press and carries out hot pressing, and hot pressing temperature is 185 ℃, and pressure is 6MPa, and hot pressing time is 15min;
The 5th step: cooling
By the cooling light-duty Thermoplastic Laminates that obtains having anti-microbial property on the coldplate of logical recirculated water of the composite after hot pressing, described sheet metal thickness is 6mm.
Claims (4)
1. the preparation method of shredded ginger fiber/ginger slag/polypropylene light hot plastic composites, it is characterized in that: described composite be take the shredded ginger fiber and is reinforcement, the polypropylene of take is matrix, described composite preform constructions is " sandwich " layer structure, upper and lower layer be take the shredded ginger fiber and is matrix as reinforcement, the polypropylene short fiber of take, and intermediate layer is the ginger slag/polypropene staple mixed; Described preparation method comprises following processing step:
The first step: mix
By the shredded ginger fiber with carry out combing after the polypropylene short fiber mixes, the mass percent of described shredded ginger fiber and polypropylene short fiber is 50～60%: 40～50%, described polypropylene short fiber fineness is 10～20D, length is 30～50mm; The ginger slag is mixed with the polypropylene short fiber, and described polypropylene short fiber fineness is 10～20D, and length is 2～8mm, and the mass percent of described ginger slag and polypropylene short fiber is 60～70%: 30～40%;
Second step: laying
Evenly be laid on the shredded ginger fiber/polypropylene short fiber of mixing, carding upper and lower two-layer, in the middle of the material of ginger slag/polypropylene short fiber mixing evenly was laid on, upper strata, intermediate layer and lower floor's mass percent were respectively 20～25%: 50～60%: 20～25%:
The 3rd step: precompressed
Composite material on hot press, that the step 2 laying is good carries out precompressed, and the precompressed temperature is normal temperature～80 ℃, and preload pressure is 5～10MPa, and squeeze time is 4～10min, then release;
The 4th step: hot pressing
Stratified material after precompressed is placed on hot press and carries out hot pressing, and hot pressing temperature is 170～195 ℃, and pressure is 3～8MPa, and hot pressing time is 10～30min;
The 5th step: cooling
By the cooling light-duty Thermoplastic Laminates that obtains having anti-microbial property on the coldplate of logical recirculated water of the composite after hot pressing.
2. the preparation method of a kind of shredded ginger fiber as claimed in claim 1/ginger slag/polypropylene light hot plastic composites, it is characterized in that: described shredded ginger fiber, ginger slag are the accessory substances in the process such as ginger squeezing, extraction such as ginger food such as ginger juice, ginger powder, ginger active component, described shredded ginger average fiber length is 35～55mm, and average fineness is 5～10tex; Described ginger slag is mainly CORTEX ZINGIBERIS RHIZOMAE and short ginger fiber broken, crushing, and its extreme length is shorter than 20mm.
3. the preparation method of a kind of shredded ginger fiber as claimed in claim 1/ginger slag/polypropylene light hot plastic composites, it is characterized in that: described in step 1, two kinds of polypropylene are the plain polypropylene staple fibre that does not pass through modification, and its fusing point is 160～168 ℃.
4. the preparation method of a kind of shredded ginger fiber as claimed in claim 1/ginger slag/polypropylene light hot plastic composites, it is characterized in that: the thickness of described composite is 4～8mm.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107266723A (en) * | 2017-06-22 | 2017-10-20 | 青岛科技大学 | It is a kind of high to stretch rubber composite of high abrasion-resistant tread rubber and preparation method thereof surely |
| CN107312218A (en) * | 2017-06-22 | 2017-11-03 | 青岛科技大学 | A kind of rubber composite of low rolling resistance high abrasion-resistant tread rubber and preparation method thereof |
| CN107383444A (en) * | 2017-06-22 | 2017-11-24 | 青岛科技大学 | A kind of string enhancing high abrasion-resistant tread rubber rubber composite and preparation method |
| CN107383491A (en) * | 2017-06-22 | 2017-11-24 | 青岛科技大学 | A kind of eggshell recycles high abrasion-resistant tread rubber rubber composite and preparation method |
| CN114381863A (en) * | 2022-01-26 | 2022-04-22 | 南京智合沪瑞生态环境研究院有限公司 | Preparation method of spunlace non-woven fabric substrate and application of spunlace non-woven fabric substrate as filter membrane supporting material |
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| CN114381863B (en) * | 2022-01-26 | 2024-03-12 | 南京瑞洁特膜分离科技有限公司 | Method for preparing spunlaced non-woven fabric substrate and application of spunlaced non-woven fabric substrate as filtering membrane supporting material |
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Application publication date: 20131127 |