CN105034471A - Novel bast-fiber mat, preparation technology and application thereof - Google Patents
Novel bast-fiber mat, preparation technology and application thereof Download PDFInfo
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- CN105034471A CN105034471A CN201510345097.4A CN201510345097A CN105034471A CN 105034471 A CN105034471 A CN 105034471A CN 201510345097 A CN201510345097 A CN 201510345097A CN 105034471 A CN105034471 A CN 105034471A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/01—Liners for load platforms or load compartments
- B60R13/011—Liners for load platforms or load compartments for internal load compartments, e.g. car trunks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R13/0212—Roof or head liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R13/0237—Side or rear panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R13/0237—Side or rear panels
- B60R13/0243—Doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/51—Elastic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
- B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention provides a novel bast-fiber mat. The novel bast-fiber mat comprises a base material and a fibrous material compounded with the base material, wherein the fibrous material comprises jute fiber, polypropylene staple fiber and polyester staple fiber; the weight ratio of jute fiber to polyester staple fiber to polypropylene staple fiber is (30-40): (5-15): (50-60). The invention also provides a preparation technology of the novel bast-fiber mat. The bast-fiber mat provided by the invention has the characteristics of being light in weight, high in strength, strong in anti-impact toughness, capable of replacing metal products or other chemical materials, good in moulding processability, low in price, energy-saving, environment-friendly, and the like.
Description
Technical field
The invention belongs to technical field of automotive upholstery, be specifically related to the fine felt of a kind of novel fiber crops and preparation technology thereof and application.
Background technology
Existing automotive upholstery product many employings chemical synthetic material is as PP, ABS etc., this material resources is limited, non-renewable, and energy resource consumption is large, in process, environment is produced and pollute, the strategy of sustainable development in worldwide is become along with environmental protection, with regard to automotive field, need the fiber actively taking green, natural, easy degraded, to reach the object reducing environmental pollution, make rational use of resources, lightweight and environmental protection have become the Main way that current automotive material develops.
In natural fiber, bast-fibre is easily planted, and output is high, can not cause predatory exploitation, can degrade, can not cause malignant pollution, meet environmental protection and ecological index requirement after product abandonment at occurring in nature resource.
The patent No. is the Chinese patent literature of ZL200410041912.X, disclose one and make felt by monofilament, flaxen fiber, polyster fibre and the lapping of polypropylene fiber batch mixing, openly do not prepare the concrete grammar of this fine felt, therefore can not determine whether the disclosed performance by mixing its bending strength of fine felt, elastic modelling quantity, impact strength, fungus growth, wear resistance, color fastness and the aspect such as fire-retardant that obtain of this patent document meets the demands.
The patent No. is the Chinese patent literature of ZL201010547783.7, disclose and a kind ofly mix the fine felt of the fiber crops of making mixing by basalt fibre and flaxen fiber two kinds of natural fibers and polyster fibre and polypropylene fiber two kinds of chemical fibres, equally openly do not prepare the concrete grammar of numb fine felt yet, therefore can not determine whether the disclosed performance by mixing fine its bending strength of felt of the fiber crops obtained, elastic modelling quantity, impact strength, fungus growth, wear resistance, color fastness and the aspect such as fire-retardant of this patent document meets the demands.
Summary of the invention
The object of this invention is to provide the fine felt of a kind of novel fiber crops, its have lightweight, intensity is high, toughness is strong, can the characteristic such as substituted metal product or other chemical materials, moulding processability is excellent, price is low, energy-conserving and environment-protective.Present invention also offers the preparation technology of the fine felt of these novel fiber crops.
For realizing goal of the invention, the present invention takes following technical scheme:
A kind of numb fine felt, comprise base material and the fibrous material with base material compound, described fibrous material comprises tossa, polypropylene chopped fiber peacekeeping polyester staple fiber.
As preferably, in described fibrous material, between each fiber, weight ratio is tossa: polyester staple fiber: polypropylene short fiber is 30 ~ 40:5 ~ 15:50 ~ 60, more preferably, in described fibrous material, between each fiber, weight ratio is tossa: polyester staple fiber: polypropylene short fiber is 33 ~ 37:8 ~ 12:53 ~ 57.
As preferably, the fibre length of described tossa is 80 ± 10mm, and regain is less than 14%, and the fibre diameter of described polyester staple fiber is 7 μm, and the fibre diameter of described polypropylene short fiber is 7 μm.
As preferably, described base material is non-woven fabrics.
As preferably, the thickness of described fibrous material is 10 ± 1mm, and the thickness of described base material is 1 ± 0.5mm.
As preferably, described fibrous material body grammes per square metre is 1600 ± 50 grams/flat, non-woven fabrics grammes per square metre is 200 grams/and flat.
As preferably, the overall grams of the fine felt of described fiber crops is heavily 1800 ± 50 grams/m.
One of natural fiber that in the fine felt of fiber crops of the present invention, natural plant fibre tossa is the most cheap, plantation amount and the extensive of purposes are all only second to cotton, be called as " gold fiber ", have that density is little, quality is light, good hygroscopicity, there is biodegradation, but hot strength is low after processing, mouldability is poor, and it is more reasonable to control its consumption in account for gross weight 30 ~ 40% after deliberation.
Polypropylene short fiber is a kind of hemicrystalline thermoplastic, it has higher resistance to impact, engineering properties is tough, anti-multiple organic solvent and acid and alkali corrosion, hot melt is higher, heating pressurization after rise adhesive effect, poisonous binding agent can be replaced, after deliberation its consumption control in account for sandwich layer gross weight 5 ~ 15% more reasonable.
Polyester staple fiber be an important kind in short fiber synthetic fibers, there is extremely excellent setting performance, not yielding, impact strength is high, good springiness, and heat resistance and thermal insulation are best in synthetic fibers, terylene smooth surface, closely, wearability is good in interior molecules arrangement, light resistance is good, corrosion-resistant, resistance to diluted alkaline, is not afraid of mould, and color fastness is good, not fugitive color, soundproof effect is good, after deliberation its consumption control in account for sandwich layer gross weight 50 ~ 60% more reasonable.
The invention still further relates to the preparation technology of the fine felt of above-mentioned fiber crops, take following technical scheme:
A preparation technology for the fine felt of fiber crops, comprises the steps:
(1) batch mixing: by charge ratio by tossa, polypropylene chopped fiber peacekeeping polyester staple fiber mixes in batch mixer;
(2) shredding: will in batch mixer mixed fiber, carry out shredding process with opener, then enter mixing chamber and carry out Homogeneous phase mixing;
(3) net is become: the fiber carding machine mixed is carried out combing, the fiber after combing is carried out into net through lapping machine;
(4) felt is become: the fiber after one-tenth net is carried out acupuncture through needing machine and obtains numb fine felt;
(5) rolling: use coiler and straight knife to be placed on coiler by fine for fiber crops felt, controls rolling rice number;
(6) compound: fine for the fiber crops of rolling felt is carried out acupuncture compound by needing machine together with non-woven fabrics;
(7) blanket base: carry out slicing treatment according to manufactured product size and obtain blanket base;
(8) heat: blanket base is put into plate type heating machine and carries out high-temperature heating;
(9) compressing: the casted die mould that the blanket base after heating is placed on hydrodynamic mo(u)lding press is while hot pressed.
(10) cut: carry out cutting with water cutting machine and obtain finished product, and carry out product inspection;
(11) airing: finished product is carried out airing, the airing time is more than 24 hours.
As preferably, the control voltage of the opener in described step (1) in batch mixer and step (2) is 380V.
As preferably, the carding machine feeding frequency described in described step (3) is 31.04HZ, and main cylinder frequency is 34.3HZ, and doffer's frequency is 15.5HZ; The oblique curtain frequency of described lapping machine is 312.9HZ, and ring curtain frequency is 328.85HZ, and reciprocating frequence is 320.1HZ, and end curtain frequency is 35.35HZ.
As preferably, described step (4) becomes the fiber after net through four road needing machines.
As preferably, numb fine felt is obtained to described step (4) and to test analysis.
As preferably, in described step (4), needing machine stings loading frequency is in advance 5.35HZ, pre-thorn mair motor frequency is 15.25HZ, pre-thorn discharging frequency is 10HZ, under to lunge discharging frequency be 11.6HZ, lower thorn mair motor frequency is 6.15HZ, and it is 11.8HZ that master lunges discharging frequency, and main thorn mair motor frequency is 12.65HZ; The needle-like number of the pre-pricker used is 618711 (15*18*36*3.5R222Y4012), and in main thorn, pricker model is 15*18*40*3C222Y4012 pin, and under main thorn, pricker model is 15*18*38*3M333Y4012 pin.
As preferably, step (6) joint product is tested analysis.
As preferably, the heating-up temperature in described step (8) is 200 ~ 250 DEG C, and the heat time is 50 ~ 100s;
As preferably, the pressure of the hydrodynamic mo(u)lding press in described step (9) is 70-85T, and the dwell time is 50 ~ 100s.
The invention still further relates to this numb fine felt and produce the application in roof decorations, door trim, luggage case sidewall plate, the automobile back of the body case, tail-gate, left and right gusset, ceiling, hat rack, door-plate plug-in unit etc.
The fine felt of fiber crops of the present invention is by natural plant fibre, thermoplastic fibre is organically combined with synthetic fibers, and obtain numb fine felt by the processing technology of specific proportioning and uniqueness and have lightweight, bending strength is high, elastic modelling quantity is high, impact strength is high, do not go mouldy, indeformable, the features such as nondiscolouring, also acute angle section can not be produced after fragmentation, more safe and reliable, and material belongs to regenerated resources, nontoxic, pollution-free, environmental-protecting performance is given prominence to, can be applicable to roof decorations, door trim, luggage case sidewall plate, automobile back of the body case, tail-gate, left and right gusset, ceiling, hat rack, the aspects such as door-plate plug-in unit.
Accompanying drawing explanation
Fig. 1 is the production technological process of numb fine felt;
Fig. 2 is the structural representation of the fine felt of the present invention fiber crops;
Wherein, 1. non-woven fabrics; 2. fibrous material.
Detailed description of the invention
Embodiment:
A preparation technology for the fine felt of fiber crops, comprises the steps:
(1) batch mixing: fiber is opened bag, before being placed on batch mixer, by tossa 30kg, polypropylene short fiber 5kg: polyester staple fiber 50kg is placed on batch mixer front end, artificial amalgamation time, then material loading is on batch mixer table top, open batch mixer, control voltage is at 380V;
(2) shredding: will in batch mixer mixed fiber, carry out shredding process with opener, control voltage, at 380V, then enters mixing chamber and carries out Homogeneous phase mixing;
(3) net is become: the fiber carding machine mixed is carried out combing, the fiber after combing is carried out into net through lapping machine;
Described carding machine feeding frequency is 31.04HZ, and main cylinder frequency is 34.3HZ, and doffer's frequency is 15.5HZ.
The oblique curtain frequency of described lapping machine is 312.9HZ, and ring curtain frequency is 328.85HZ, and reciprocating frequence is 320.1HZ, and end curtain frequency is 35.35HZ.
Described fiber lay down stratum reticulare number is toward cladding 21 layers, and every layer goes out evenly cotton, lapping width 1700/1650 ± 10mm, and total fiber grammes per square metre 1600 ± 50 grams/flat, also can according to the Demand Design total fiber grammes per square metre of reality.
(4) felt is become: the fiber after lapping is carried out into model processing through four road needing machines and obtains numb fine felt, acupuncture is even, the fine felt thickness of fiber crops 10 ± 1mm, electronic scale and Steel Ruler is used to measure exemplar after acupuncture, get exemplar 100*100mm after acupuncture, get three pieces in same cross section simultaneously, carry out the measurement of thickness, grammes per square metre.
It is 5.35HZ that described needing machine stings loading frequency in advance, and pre-thorn mair motor frequency is 15.25HZ, and pre-thorn discharging frequency is 10HZ, under to lunge discharging frequency be 11.6HZ, lower thorn mair motor frequency is 6.15HZ, and it is 11.8HZ that master lunges discharging frequency, and main thorn mair motor frequency is 12.65HZ; The needle-like number of the pre-pricker used is 618711 (15*18*36*3.5R222Y4012), and in main thorn, pricker model is 15*18*40*3C222Y4012 pin, and under main thorn, pricker model is 15*18*38*3M333Y4012 pin.
(5) rolling: use coiler and straight knife to be placed on coiler by fine for fiber crops felt, controlling rolling rice number is 32 meters/volume.
(6) compound: fine for the fiber crops of rolling felt is carried out acupuncture compound by needing machine together with non-woven fabrics, and elasticity is suitable, overall grammes per square metre 1800 ± 50 grams after controlling compound/flat, numb fine felt thickness 10 ± 1mm; Carry out the measurement of thickness, grammes per square metre, control surface clean and tidy (without filigree, scalelike mark), without broken needle.
The grammes per square metre 1600 ± 50 grams of described fibrous material/flat; Described non-woven fabrics is PET needle punched non-woven fabrics, and its lapping number of plies is that 10 layers (reciprocal numbers of plies) every layer go out cotton evenly, lapping width 1800 ± 10mm non-woven fabrics grammes per square metre 200 grams/flat;
(7) blanket base: blanket base after rolling uses straight knife to be undertaken point switching to blanket base by blank size by root;
(8) heat: blanket base is put into plate type heating machine and carries out high-temperature heating; Within the scope of heating-up temperature 200 DEG C, heat time 50s;
(9) compressing: the casted die mould that the blanket base after heating is placed on hydrodynamic mo(u)lding press is while hot pressed, make its thickness evenly, size meets drawing requirement, controlled pressure 70T, dwell time 50s.
(10) cut: finished product after die mould is placed on Water Cutting board, by clamp, then cuts according to setting program, setup parameter, finished product is placed in cubing, with the clamping of conformal cubing, then check size shape whether in the margin of tolerance, check outward appearance simultaneously.Size meets drawing requirement, and the smooth of the edge non-trimming, outward appearance are clean and tidy;
(11) airing: use drying frame to carry out airing the finished product after cutting, the airing time is more than 24 hours.
According to the preparation technology mentioned in embodiment 1, parameter is changed, obtains embodiment 2 ~ embodiment 30, specifically see the following form:
The product obtained above-described embodiment carries out the detection of performance:
1, bending strength:
According to bending strength GB (GB/T6569-86), or ISO14704-2000 tests sample (35 × 3 × 4) standard.Carry out bending strength test with universal testing machine to the product that embodiment prepares, in normal temperature situation, the compound that embodiment 1-30 prepares is all at >50N/mm
2, after within 24 hours, water is aging, the compound >40N/mm that embodiment 1-30 prepares
2.
2, elastic modelling quantity:
Adopt granary, Jiangsu YG001A-1 type ultimate fibre electronics strength tester, with milky white adhesive, monofilament is bonded on paper frame, cut off after bonding, housing is 20 × 45mm, inside casing is 12 × 35mm, between fixture fibre single thread being fixed on electronics strength tester, measure length 35mm, the Mean Speed that chuck declines is 15mm/min.Test its stretching peak load Fmax (N), with miking monfil diameter D (μm), the test sample book often organizing fiber is not less than 15, averages.The elastic modelling quantity (GPa) of flaxen fiber, then by carrying out linear fit and correction to the stress-extension curve obtained, obtains out the slope of every root fiber sample, and then through type
calculate gained: wherein, k represents the slope of stress-extension curve, L
0for fibre length, i.e. span (mm), A represent fiber sectional area (μm
2).Intensity data is record under 25mm span.Hot strength σ (GPa) presses
formula calculates.Test the product that embodiment prepares, result shows, under normal circumstances, 2000-3500Mpa, after within 24 hours, water is aging, 1500-2500Mpa.
3, impact strength:
Applying one-shot bend loading according to standard GB/T1043-93 impact tester for simple supported beam to rigid plastics sample makes sample destroy, and the energy that when destroying with sample, unit are absorbs weighs the method for material impact toughness.Embodiment preparing product is tested, result show, >15KJ/ ㎡ under normal circumstances, 24 hours 110 DEG C aging after, >12KJ/ ㎡.
4, fungus growth:
Be placed on by embodiment preparing product in high-temperature alternate experimental box, result shows, and in lower 20 days of normal temperature, does not have fungus growth, in 40 DEG C of relative humidity 100% situations, does not have fungus growth in 20 days.
5, outward appearance: product prepared by embodiment, temperature 90 DEG C after 16 is hours aging, surface is without significant change, and as layering, distortion or variable color, change in size meets ± 0 to+0.5% in all directions; After temperature 55 DEG C of relative humidity 95%, 48 are hours aging, surface is without significant change, and as layering, distortion or variable color, change in size meets ± 0 to+0.5% in all directions; After temperature-40 DEG C of 24 low-temperature is aging, surface is without significant change, and as layering, distortion or variable color, change in size meets ± 0 to+0.5% in all directions.
6, according to standard P V3905: embodiment product is carried out falling sphere experiment, note not tearing or dividing gasket material or material composite, result all meets the requirements;
7, according to standard P V1200, embodiment product is carried out environmental cycle test, after 8 circulations, surface is without significant change, and as layering, distortion or variable color, change in size meets-0.5 to+0% in all directions, and result all meets the requirements;
8, wear resistance test: according to standard P V3906, embodiment product is carried out wear resistance test, by circular abrasion test EN20105-A03 tonal gradation >=4.5, by test EN20105-A03, tonal gradation >=4.5, result all meets the requirements;
9, fastness properties test: according to standard P V1303, embodiment product is carried out fastness properties test, to colour fastness to rubbing EN20105-A02 tonal gradation >=4.0, meet EN20105-A02 tonal gradation >=4.0 after 2 weeks for standard with minimum UV light exposure cycle, result all meets the requirements;
10, fire resistance test: according to standard TL1010, embodiment product is carried out fire resistance test, result display <100mm/min;
11, volatile performance test: according to standard VW50180, embodiment product is carried out volatile performance test, result display N≤3 grade;
12, condensation test: according to standard P V3015, embodiment product is carried out condensation test, result display≤2mg;
13, total carbon test is according to standard P V3341, and embodiment product is carried out total carbon test, result display≤50 μ gC/g;
14, formaldehyde test: according to standard P V3925, embodiment preparing product is carried out formaldehyde test, result display≤10mg/kg;
15, smell test: according to popular standard P V3900, embodiment preparing product is carried out smell test, result display≤3.0.
The properties of product test acquired results obtaining numb fine felt of embodiment 1 ~ enforcement 30 is seen the following form:
Claims (10)
1. the fine felt of fiber crops, comprises base material and the fibrous material with base material compound, it is characterized in that described fibrous material comprises tossa, polypropylene chopped fiber peacekeeping polyester staple fiber.
2. the fine felt of fiber crops according to claim 1, is characterized in that in described fibrous material, between each fiber, weight ratio is tossa: polyester staple fiber: polypropylene short fiber is 30 ~ 40:5 ~ 15:50 ~ 60.
3. the fine felt of fiber crops according to claim 1, it is characterized in that the fibre length of described tossa is 80 ± 10mm, regain is less than 14%, and the fibre diameter of described polyester staple fiber is 7 μm, and the fibre diameter of described polypropylene short fiber is 7 μm.
4. the fine felt of fiber crops according to claim 1, is characterized in that described base material is non-woven fabrics.
5. the fine felt of fiber crops according to claim 1, is characterized in that the thickness of described fibrous material is 10 ± 1mm, and the thickness of described base material is 1 ± 0.5mm; The overall grams of the fine felt of described fiber crops is heavily 1800 ± 50 grams/m.
6. a preparation technology for the fine felt of the fiber crops as described in as arbitrary in claim 1 to 5, is characterized in that comprising the steps:
(1) batch mixing: by charge ratio by tossa, polypropylene chopped fiber peacekeeping polyester staple fiber mixes in batch mixer;
(2) shredding: will in batch mixer mixed fiber, carry out shredding process with opener, then enter mixing chamber and carry out Homogeneous phase mixing;
(3) net is become: the fiber carding machine mixed is carried out combing, the fiber after combing is carried out into net through lapping machine;
(4) felt is become: the fiber after one-tenth net is carried out acupuncture through needing machine and obtains numb fine felt;
(5) rolling: use coiler and straight knife to be placed on coiler by fine for fiber crops felt, controls rolling rice number;
(6) compound: fine for the fiber crops of rolling felt is carried out acupuncture compound by needing machine together with non-woven fabrics;
(7) blanket base: carry out slicing treatment according to manufactured product size and obtain blanket base;
(8) heat: blanket base is put into plate type heating machine and carries out high-temperature heating;
(9) compressing: to be pressed on the casted die mould that whether (describe accurate, raw content is for putting speed) is placed on hydrodynamic mo(u)lding press while hot of the blanket base after heating;
(10) cut: carry out cutting with water cutting machine and obtain finished product, and carry out product inspection;
(11) airing: finished product is carried out airing, the airing time is more than 24 hours.
7. the preparation technology of the fine felt of fiber crops according to claim 6, is characterized in that the control voltage of the opener in the middle batch mixer of described step (1) and step (2) is 380V.
8. the preparation technology of the fine felt of fiber crops according to claim 6, is characterized in that obtaining numb fine felt and step (6) to described step (4) obtains joint product and to test analysis.
9. the preparation technology of the fine felt of fiber crops according to claim 6, it is characterized in that the heating-up temperature in described step (8) is 200 ~ 250 DEG C, the heat time is 50 ~ 100s; The pressure of the hydrodynamic mo(u)lding press in described step (9) is 70-85T, and the dwell time is 50 ~ 100s.
10. the fine felt of the fiber crops as described in as arbitrary in claim 1 to 5 is in the application of producing roof decorations, door trim, luggage case sidewall plate, automobile carry on the back case, tail-gate, left and right gusset, ceiling, hat rack, door-plate plug-in unit.
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| CN110373810A (en) * | 2019-07-24 | 2019-10-25 | 湖南南源新材料有限公司 | Jute staple fiber reuse method |
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