CN102896822B - High performance lightweight composite sheet material, production method and application - Google Patents
High performance lightweight composite sheet material, production method and application Download PDFInfo
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Abstract
The invention belongs to the novel composite material technical field, and relates to a high performance lightweight composite sheet material, a production method and an application. The composite sheet material comprises an external layer and an internal layer, the external layer comprises an upper external layer and a lower external layer, the upper external layer, the internal layer and the lower external layer are superposed in order, and the adjacent layers are connected by hot pressing. Compared with the prior art, the high performance lightweight composite sheet material has the following advantages and beneficial effects that the high performance lightweight composite sheet material has the properties of light weight, durability and circular usage; a device is plasticized and molded through high temperature and hot pressure, and a non woven fabric having a fluffy multilayer structure is prepared to a layer having fine holes. The lightweight composite sheet materials with different water absorption and strength can be manufactured under same weight and thickness. thereby the lightweight composite sheet material can be used for various inner decoration parts for automobile, building and industrial material, the composite sheet material has multilayer composite structure and high porosity amount, so that the composite sheet material has excellent formability, heat insulation performance, sound absorption performance and impact absorbent performance.
Description
Technical field
The invention belongs to advanced composite material (ACM) technical field, relate to a kind of high-performance light composite board and production method thereof and purposes.
Background technology
Along with the development of auto industry, the auto output steady-state growth of China, automobile consumption scale is increasingly huge.The development of automobile and relevant industries is day by day obvious on the impact of the aspects such as social energy resource supply, environmental protection, and the pressure of the energy-saving and emission-reduction therefore will born also increases increasingly.The automotive light weight technology technology such as the lightweight of vehicle structure and the use of lightweighting materials, on purpose can alleviate the weight of automobile self, the security of running car, crash-worthiness, vibration resistance and comfortableness can be ensured again, meet the cost-effectiveness requirement of automobile itself simultaneously.Replace metal with plastics, can not only car weight be alleviated, reduce fuel consume and hydrocarbon emission, also can improve dynamic property, adapt to adverse circumstances, increase security; And due to plastics recyclable, thus save the resource consumption in manufacture process, finally make automobile in safety and cost two, obtain more breakthrough.Application as the polymer composite of the alternative materials of metal is also developed rapidly.As composite materials for automotive interior parts, the high-fire resistance/high rigid composite material that forms of macromolecular material such as such as polypropylene or thermoplastic olefin etc. strengthened by the reinforcing material such as glass fibre, carbon fiber obtains application because of having the performance that is better than metal in various occasion.
But, when the automotive interior part adhesive-bonded fabric produced by heat of mixing Plasitc fibers and fortifying fibre, very difficult the such as powder such as fortifying fibre or wood powder is evenly dispersed in thermoplastic polymer resin, makes the high-quality product being difficult to expect stay in grade.In addition, these fibre reinforced composites are also unsatisfactory in impact resistance and fracture toughness, and beyond limited degree of deformation, meanwhile, organic thermoplastic receives restriction when being applied to automotive interior part because its heat resistance is low.When content of glass fiber is low, product strength does not reach desirable; When content of glass fiber height, base material and glass fibre are difficult to again to mix and bonding.And do not form multilayer network structure between fiber, cause porosity low, heat insulation sound absorbent limited efficiency.Because described adhesive-bonded fabric produces with the form of thermoplastic nonwoven fabric and distributes, thus next utilize high temperature hot pressing formed in situ adhesive-bonded fabric can lure that the connection between skin and internal layer is uneven into, limit the improvement to intensity simultaneously.
Summary of the invention
The object of the invention is to the defect in order to overcome the existence of above-mentioned prior art and a kind of composite board and its production and use is provided.
For achieving the above object, the technical solution used in the present invention is as follows:
The high-performance light composite board with sandwich construction provided by the invention, described composite board has excellent mouldability, thermal insulation, sound absorption properties and impact absorbency; There is the sandwich construction by designing using suitable mixing ratio mixing as the thermoplastic fibre of substrate fiber and fortifying fibre; Due in the control heat bonding while spread heat in plasticizing forming equipment compression and expansion adhesive-bonded fabric, because of but lightweight; Thermoplastic organic fiber is overcome in the restriction for low heat resistant during automotive interior part by using the fluffy sandwich construction containing fortifying fibre; Owing to combinationally using thermoplastic organic fiber and fortifying fibre and there is lightweight, durable effect and recirculation property; Spread heat during by having sandwich construction and controlling heat bonding, can be made with different water absorption rate and intensity when weight is identical with thickness; By high temperature hot pressing plasticizing forming equipment, the high performance light composite board with pore layer can be made up of the adhesive-bonded fabric being designed to have sandwich construction.
A kind of composite board, comprise skin and internal layer, described skin comprises skin and lower skin, and upper skin, internal layer and lower skin superpose successively, and described neighboring layers is connected by hot pressing.
Described light composite board density is 0.45 ~ 0.85g/cm
3.
Described upper skin or lower outer field thickness are 0.5 ~ 1mm.
The thickness of described internal layer is 1 ~ 2.2mm.
Described upper skin or lower skin are made up of the component comprising following weight portion:
Base material 100 parts,
Thermoplastic polyester 15 ~ 50 parts.
Described upper skin or lower skin are made up of the component comprising following weight portion:
Base material 100 parts,
Thermoplastic polyester 20 ~ 40 parts,
Fortifying fibre 15 ~ 30 parts.
Described internal layer is made up of the component comprising following weight portion:
Base material 100 parts,
Fortifying fibre 100 ~ 180 parts.
Described internal layer comprises internal layer, middle internal layer and lower internal layer, and wherein said upper internal layer or lower internal layer are made up of the component comprising following weight portion:
Base material 100 parts,
Fortifying fibre 100 ~ 120 parts;
Described middle internal layer is made up of the component comprising following weight portion:
Base material 100 parts,
Fortifying fibre 120 ~ 180 parts.
The thickness of described upper internal layer is 0.2 ~ 0.6mm, and middle internal layer thickness is 0.6 ~ 1.0mm, and lower internal layer thickness is 0.2 ~ 0.6mm.
Described fortifying fibre is selected from glass fibre, carbon fiber, aramid fiber.
Described base material is selected from polypropylene or shell/core bicomponent fibre.
Described thermoplastic polyester is poly-is selected from ethylene glycol terephthalate copolymer or polybutylene terephthalate (PBT) copolymer, and the fusing point of thermoplastic polyester is 180 ~ 220 DEG C.
Described base material and thermoplastic polyester are in threadiness.
Described shell/core bicomponent fibre is made up of the component comprising following weight portion:
Thermoplastic polyester 100 parts,
High density polyethylene (HDPE) 50 ~ 80 parts.
The fusing point of described high density polyethylene (HDPE) is 110 ~ 150 DEG C.
A preparation method for above-mentioned composite board, comprises the following steps:
(1) upper and lower outer layer web and inner layer web is prepared:
(1a) fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 100 ~ 180 weight portions equably to form fibre blend, and fibre blend is obtained inner layer web by carding machine;
(1b) fibrillation and mix the base material of 100 weight portions and the thermoplastic polyester of 15 ~ 50 weight portions equably, or fibre blend, to form fibre blend, is obtained upper and lower outer layer web by carding machine by the thermoplastic polyester of the base material of 100 weight portions, 20 ~ 40 weight portions and the fortifying fibre of 15 ~ 30 weight portions;
(2) folding
By inner layer web obtained in step (1) and upper and lower outer layer web according to together with upper outer layer web, inner layer web, the fibroreticulate sequence stack of lower skin, form multilayer network structure;
(3) connect
By acupuncture, cancellated for described multilayer each layer is interconnected, to make adhesive-bonded fabric;
(4) shaping
By adhesive-bonded fabric by heating plasticizing former, make described adhesive-bonded fabric carry out comprising the Continuous maching of preheating, heat bonding, pressurization, cooling, expansion and cutting in the apparatus, manufacture described high-performance light composite board thus.
A preparation method for above-mentioned composite board, comprises following steps:
(1) inner layer web and upper and lower outer layer web is prepared:
(1a) fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 120 ~ 180 weight portions equably to form fibre blend, internal layer in the middle of fibre blend is obtained by carding machine;
(1b) fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 100 ~ 120 weight portions equably to form fibre blend, by fibre blend by the obtained upper internal layer of carding machine or lower internal layer;
(1c) fibrillation also mixes the base material of 100 weight portions and the thermoplastic polyester of 15 ~ 50 weight portions equably, or fibre blend, to form fibre blend, is obtained upper and lower outer layer web by carding machine combing by the fortifying fibre of the base material of Homogeneous phase mixing 100 weight portion, the thermoplastic polyester of 20 ~ 40 weight portions and 15 ~ 30 weight portions;
(2) folding
By upper inner layer web obtained in step (1), middle inner layer web, lower inner layer web and upper and lower outer layer web according to upper outer layer web, upper inner layer web, middle inner layer web, lower inner layer web together with the fibroreticulate sequence stack of lower skin, form multilayer network structure;
(3) connect
By acupuncture, cancellated for described multilayer each layer is interconnected, to make adhesive-bonded fabric;
(4) shaping
By adhesive-bonded fabric by heating plasticizing former, carry out comprising the Continuous maching of preheating, heat bonding, pressurization, cooling, expansion and cutting, obtain composite board.
By upper needing machine and lower needing machine multi-layer thin fleece tangled mutually in described step (3) and connect together;
The surface density of the bonded fabric of described step (3) is 1600g/m
2-3000g/m
2.
In described step (4), moulding process is: adhesive-bonded fabric is passed through high temperature hot pressing plasticizing forming equipment with the speed of 8 ~ 10m/min.The internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit, wherein the temperature of preheating unit is 190 ~ 210 DEG C, the temperature of melting pressurization/expansion cell is 220 ~ 240 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 55 ~ 65 DEG C and 25 ~ 35 DEG C respectively.
A kind of above-mentioned composite board is used as the purposes of automotive interior material.
Compared with the existing technology, tool has the following advantages and beneficial effect in the present invention:
1. high-performance light composite board provided by the invention is by the design of fluffy sandwich construction containing fortifying fibre, overcome thermoplastic organic fiber for during automotive interior part because of restriction that its low heat resistant brings; By combinationally using thermoplastic organic fiber and fortifying fibre, there is lightweight, durable and can recycle the character of use; By high temperature hot pressing plasticizing forming equipment, can be made up of the adhesive-bonded fabric being designed to have fluffy sandwich construction and there is pore layer.
2. the spread heat of the present invention by sandwich construction and when controlling heat bonding, can manufacture the light composite board with different water absorption rate and intensity under identical weight and thickness.Therefore, these light composite boards can be used for various automotive interior part, and build and industrial materials, such as dividing plate, furniture and glued board, these composite boards, owing to having multi-layer compound structure and high porosity, thus have excellent mouldability, thermal insulation, sound absorption properties and impact absorbency.
Accompanying drawing explanation
Fig. 1 is the structural representation of high-performance light composite board in the embodiment of the present invention 1.
Fig. 2 is the structural representation of high-performance light composite board in the embodiment of the present invention 4.
1 be upper skin, 2 be wherein internal layer, 21 be upper internal layer, 22 be middle internal layer, 23 for lower internal layer, 3 times skins.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated.
GB(GB is adopted in embodiment) measure the properties of material, if no special instructions, the number of component is parts by weight.
Embodiment 1
A kind of high-performance light composite board as shown in Figure 1, comprises internal layer 2 and upper and lower outer 1,3, is bonded together according to upper outer 1, internal layer 2, the lower order of outer 3.
(1) inner layer web and upper and lower outer layer web is prepared:
(1a) to the glass fibre (Y-1) of the polypropylene of 100 weight portions and 100 weight portions,
Or 100 weight portion polypropylene and 120 weight portions glass fibre (Y-2),
Or 100 weight portion polypropylene and 140 weight portions glass fibre (Y-3),
Or 100 weight portion polypropylene and the glass fibre (Y-4) of 160 weight portions,
Or the glass fibre of the polypropylene of 100 weight portions and 180 weight portions (Y-5) carries out fibrillation, and it is mixed respectively, make often kind of fibre blend by carding machine, to form the thin fibrous web by being used as internal layer 2;
(1b) fibrillation is carried out to the glass fibre of the polypropylene of 100 weight portions, the PETG (PET) of 28 weight portions and 20 weight portions, and it is mixed mutually, make mixture by carding machine, will the upper and lower outer thin fibrous web of 1,3 be used as to be formed.
(2) folding
Perform folding step, thus be placed in two upper and lower surfaces of internal layer 2 by upper and lower outer 1,3;
(3) connect
By acupuncture, the cancellated each layer of multilayer is interconnected, to make adhesive-bonded fabric, its area weight is 1800g/m
2;
(4) shaping
By adhesive-bonded fabric with the speed of 8 ~ 10m/min by high temperature hot pressing plasticizing forming equipment, to manufacture thickness for 2.5mm(internal layer thickness 1.5mm and upper and lower outer layer thickness 0.5mm) light composite board.The internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit.Preheating unit is remained the temperature of 200 DEG C, the temperature of melting pressurization/expansion cell remains on 220 ~ 240 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 60 DEG C and 30 DEG C respectively.
The change of physical property with fortifying fibre (glass fibre) content in light composite board internal layer 2 is shown in following table 1.
In Table 1, MD representative is sampled as longitudinal direction, and AMD representative is sampled as transverse direction.
Table 1
Can be found out by data in table 1, along with the change of content of glass fiber in internal layer 2, the physical property of sample is also along with change.
When content of glass fiber is at 140 parts, the combination property of sample is best, and too high levels or excessively low performance all can reduce.
Embodiment 2
(1) inner layer web and upper and lower outer layer web is prepared:
(1a) fibrillation and mixing are carried out to the polypropylene of 100 weight portions and the glass fibre of 140 weight portions, and make this fibre blend by carding machine, to form the thin fibrous web by being used as internal layer 2.
(1b) fibrillation is carried out to the glass fibre of the polypropylene of 100 weight portions, the PETG (PET) of 28 weight portions and 20 weight portions, and it is mixed mutually, make mixture by carding machine, will the upper and lower outer thin fibrous web of 1,3 be used as to be formed.
(2) folding
Perform folding step, thus be placed on two surfaces of internal layer 2 by upper and lower outer 1,3;
(3) connect
By acupuncture, the cancellated each layer of multilayer is interconnected, to make adhesive-bonded fabric, the area weight of adhesive-bonded fabric is respectively 1600g/m
2, 1800g/m
2, 2100g/m
2, 2500g/m
2, 3000g/m
2(corresponding products nr is respectively Y6 ~ Y-10);
(4) shaping
By above-mentioned adhesive-bonded fabric with the speed of 8 ~ 10m/min by high temperature hot pressing plasticizing forming equipment, to manufacture thickness for 3.0mm(internal layer thickness 1.8mm and upper and lower outer layer thickness 0.6mm) light composite board.The internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit.Preheating unit is remained the temperature of 200 DEG C, the temperature of melting pressurization/expansion cell remains on 220 ~ 240 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 60 DEG C and 30 DEG C respectively.
The change of physical property with light composite board area weight is shown in following table 2.
In table 2, MD representative is sampled as longitudinal direction, and AMD representative is sampled as transverse direction.
Table 2
Can be found out by data in table 2, along with the area weight of sample increases, proportion also can become and is unfavorable for greatly alleviating, but the mechanical property of sample can be better.
Embodiment 3
(1) inner layer web and upper and lower outer layer web is prepared:
(1a) fibrillation and mixing are carried out to the polypropylene of 100 weight portions and the glass fibre of 140 weight portions, and make this fibre blend by carding machine, to form the thin fibrous web by being used as internal layer 2.
(1b) fibrillation is carried out to the glass fibre of the polypropylene of 100 weight portions, the PETG (PET) of 28 weight portions and 20 weight portions, and it is mixed mutually, make mixture by carding machine, will the upper and lower outer thin fibrous web of 1,3 be used as to be formed.
(2) folding
Perform folding step, thus be placed on two surfaces of internal layer 2 by upper and lower outer 1,3;
(3) connect
By acupuncture, the cancellated each layer of multilayer is interconnected, to make adhesive-bonded fabric, its area weight is 1800g/m
2;
(4) shaping
Adhesive-bonded fabric is passed through high temperature hot pressing plasticizing forming equipment, to manufacture light composite board with the speed of 8 ~ 10m/min.The internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit.Preheating unit is remained the temperature of 200 DEG C, the temperature of melting pressurization/expansion cell remains on 220 ~ 240 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 60 DEG C and 30 DEG C respectively.In addition, by controlling the gap between upper and lower roll in melting pressurization/expansion cell and cooling unit and conveyer belt, thickness and the density of light composite board is controlled.
Physical property is shown with light composite board thickness (sample Y-11 internal layer thickness 1.0mm and upper and lower outer layer thickness 0.5mm in following table 3; Sample Y-12 internal layer thickness 1.5mm and upper and lower outer layer thickness 0.5mm; Sample Y-13 internal layer thickness 1.8mm and upper and lower outer layer thickness 0.6mm; Sample Y-14 internal layer thickness 1.9mm and upper and lower outer layer thickness 0.8mm; Sample Y-15 internal layer thickness 2.0mm and upper and lower outer layer thickness 1.0mm; ), the change of density, (corresponding product is numbered Y-11 ~ Y-15).
In table 3, MD representative is sampled as longitudinal direction, and AMD representative is sampled as transverse direction.
Table 3
Can be found out by data in table 3, when area weight one timing of sample, along with thickness increases, proportion (density) can corresponding reduction.In this test, sample area weight is 1800g/m
2, when one-tenth-value thickness 1/10 is 2.5mm, every mechanical property is best.
Embodiment 4
A kind of high-performance light composite board as shown in Figure 2, comprises internal layer 21, middle internal layer 22, lower internal layer 23 and upper outer 1, lower outer 3, and is bonded together according to upper outer 1, upper internal layer 21, middle internal layer 22, lower internal layer 23 and the lower order of outer 3.
Select base material to be 100 weight portion fusing points be the polypropylene of 180 DEG C to be that the high density polyethylene (HDPE) of 110 DEG C is as the mixture of shell component as core component and 50 weight portion fusing points.
(1) inner layer web and upper and lower outer layer web is prepared
(1a) fibrillation and mixing are carried out to the shell/core bicomponent fibre of 100 weight portions and the fortifying fibre of 180 weight portions, and make this fibre blend by carding machine, to form the thin fibrous web by being used as middle internal layer 22.
(1b) fibrillation and mixing are carried out to the shell/core bicomponent fibre of 100 weight portions and the fortifying fibre of 100 weight portions, and make this fibre blend by carding machine, to form the thin fibrous web by being used as upper internal layer 21 and lower internal layer 23.
(1c) fibrillation is carried out to the fortifying fibre of the shell/core bicomponent fibre of 100 weight portions, the PETG (PET) of 25 weight portions and 15 weight portions, and it is mixed mutually, make mixture by carding machine, will the upper and lower outer thin fibrous web of 1,3 be used as to be formed.
(2) folding
Perform folding step, thus be placed on two surfaces of the internal layer containing upper internal layer 21, middle internal layer 22 and outer internal layer 23 by upper and lower outer 1,3, form five-layer structure 1 thus.
(3) connect
By acupuncture, the cancellated each layer of multilayer is interconnected, to make adhesive-bonded fabric, its area weight is 2100g/m
2;
(4) shaping
By adhesive-bonded fabric with the speed of 8 ~ 10m/min by high temperature hot pressing plasticizing forming equipment, to manufacture thickness internal layer thickness 0.5mm, middle internal layer thickness 0.8mm, lower internal layer thickness 0.5mm and upper and lower outer layer thickness 0.6mm on 3.0mm() light composite board.The internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit.Preheating unit is remained the temperature of 200 DEG C, the temperature of melting pressurization/expansion cell remains on 220 ~ 240 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 60 DEG C and 30 DEG C respectively.
The kind of physical property with fortifying fibre is shown in following table 4, namely (product of its correspondence is Y-16 respectively for glass fibre, aramid fiber and carbon fiber, Y-17, Y-18) the change of use, and use same fortifying fibre in the different layer materials of same product.
In table 4, MD representative is sampled as longitudinal direction, and AMD representative is sampled as transverse direction.
Table 4
Can be found out by data in table 4, fortifying fibre is different, and sample test performance also can change.The enhancing effect of carbon fiber and aramid fiber is better than glass fibre, but will according to actual conditions needs in actual production, and the price of glass fibre is the most cheap, cost performance height point.
Embodiment 5
A kind of high-performance light composite board, comprises internal layer 21, middle internal layer 22, lower internal layer 23 and upper and lower outer 1,3, and is bonded together according to upper outer 1, upper internal layer 21, middle internal layer 22, lower internal layer 23 and the lower order of outer 3.
Select base material to be 100 weight portion fusing points be the pet copolymer of 210 DEG C to be that the high density polyethylene (HDPE) of 140 DEG C is as the mixture of shell component as core component and 80 weight portion fusing points, selective enhancement fiber is glass fibre, prepares in accordance with the following methods
(1) upper and lower outer layer web and inner layer web is prepared:
(1a) fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 120 weight portions equably to form fibre blend, by fibre blend by the obtained upper internal layer 21 of carding machine and lower internal layer 23;
(1b) fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 160 weight portions equably to form fibre blend, internal layer 22 in the middle of fibre blend is obtained by carding machine;
(1c) fibrillation also mixes the fibrous mixture of the base material of 100 weight portions and the thermoplastic polyester of 50 weight portions equably, and fibre blend is obtained upper and lower outer 1,3 by carding machine;
(2) folding
According to upper internal layer 21, middle internal layer 22, lower internal layer 23 sequence stack together, make internal layer 2.
By internal layer 2 and upper and lower outer layer web according to together with upper outer 1, internal layer 2, the lower sequence stack of outer 3, form multilayer network structure;
(3) connect
Interconnected by cancellated for multilayer each layer by needing machine acupuncture in above-mentioned steps, to make adhesive-bonded fabric, its area weight is 1600g/m
2;
(4) shaping
By adhesive-bonded fabric with the speed of 10m/min by high temperature hot pressing plasticizing forming equipment, to manufacture thickness for internal layer thickness 0.2mm, middle internal layer thickness 0.6mm, lower internal layer thickness 0.2mm and upper and lower outer layer thickness 0.5mm on 2mm() light composite board.The internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit.Preheating unit is remained the temperature of 190 DEG C, the temperature of melting pressurization/expansion cell remains on 220 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 55 DEG C and 25 DEG C respectively.
Embodiment 6
A kind of high-performance light composite board, comprises internal layer 21, middle internal layer 22, lower internal layer 23 and upper outer 1, lower outer 3, and is bonded together according to upper outer 1, upper internal layer 21, middle internal layer 22, lower internal layer 23 and the lower order of outer 3.
Select base material to be 100 weight portion fusing points be the polybutylene terephthalate (PBT) copolymer of 220 DEG C to be that the high density polyethylene (HDPE) of 140 DEG C is as the mixture of shell component as core component and 60 weight portion fusing points, selective enhancement fiber is glass fibre, prepares in accordance with the following methods
(1) upper and lower outer layer web and inner layer web is prepared:
Fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 120 weight portions equably to form fibre blend, by fibre blend by the obtained upper internal layer 21 of carding machine and lower internal layer 23;
Fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 160 weight portions equably to form fibre blend, internal layer 22 in the middle of fibre blend is obtained by carding machine;
Fibrillation also mixes the fortifying fibre threadiness mixture of the base material of 100 weight portions and the thermoplastic polyester of 20 weight portions and 30 weight portions equably, and fibre blend is obtained upper and lower outer layer web 1 and 3 by carding machine;
(2) folding
According to upper internal layer 21, middle internal layer 22, lower internal layer 23 sequence stack together, make internal layer 2;
By internal layer 2 and upper and lower outer layer web according to together with upper outer 1, internal layer 2, the lower sequence stack of outer 3, form multilayer network structure;
(3) connect
Interconnected by cancellated for described multilayer each layer by needing machine acupuncture in above-mentioned steps, to make adhesive-bonded fabric, area weight is 2400g/m
2;
(4) shaping
By adhesive-bonded fabric with the speed of 9m/min by high temperature hot pressing plasticizing forming equipment, to manufacture thickness for internal layer thickness 0.6mm, middle internal layer thickness 0.6mm, lower internal layer thickness 0.6mm and upper and lower outer layer thickness 0.6mm on 3mm() light composite board.The internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit.Preheating unit is remained the temperature of 200 DEG C, the temperature of melting pressurization/expansion cell remains on 230 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 60 DEG C and 30 DEG C respectively.
Embodiment 7
A kind of high-performance light composite board, comprises internal layer 21, middle internal layer 22, lower internal layer 23 and upper outer 1, lower outer 3, and is bonded together according to upper outer 1, upper internal layer 21, middle internal layer 22, lower internal layer 23 and the lower order of outer 3.
Select base material to be 100 weight portion fusing points be the polybutylene terephthalate (PBT) copolymer of 220 DEG C to be that the high density polyethylene (HDPE) of 140 DEG C is as the mixture of shell component as core component and 80 weight portion fusing points, selective enhancement fiber is glass fibre, prepares in accordance with the following methods:
(1) upper and lower outer layer web and inner layer web is prepared:
Fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 120 weight portions equably to form fibre blend, by fibre blend by the obtained upper internal layer 21 of carding machine and lower internal layer 23;
Fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 160 weight portions equably to form fibre blend, internal layer 22 in the middle of fibre blend is obtained by carding machine;
Fibrillation also mixes the fortifying fibre threadiness mixture of the base material of 100 weight portions and the thermoplastic polyester of 40 weight portions and 15 weight portions equably, and fibre blend is obtained upper and lower outer layer web 1 and 3 by carding machine;
(2) folding
According to upper internal layer 21, middle internal layer 22, lower internal layer 23 sequence stack together, make internal layer 2;
By internal layer 2 and upper and lower outer layer web according to upper outer layer web 1, internal layer 2, lower outer layer web 3 sequence stack together with, form multilayer network structure;
(3) connect
Interconnected by cancellated for multilayer each layer by needing machine acupuncture in above-mentioned steps, to make adhesive-bonded fabric, its area weight is 3000g/m
2;
(4) shaping
By adhesive-bonded fabric with the speed of 8m/min by high temperature hot pressing plasticizing forming equipment, to manufacture thickness for internal layer thickness 0.5mm, middle internal layer thickness 1.0mm, lower internal layer thickness 0.5mm and upper and lower outer layer thickness 1.0mm on 4mm() light composite board.The internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit.Preheating unit is remained the temperature of 210 DEG C, the temperature of melting pressurization/expansion cell remains on 240 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 65 DEG C and 35 DEG C respectively.
Table 5
Can be found out by data in table 5, along with the change of thickness and area weight, the mechanical property of sample also changes, and when thickness reaches certain value, mechanical strength can not continue to rise.
The composite board provided in the various embodiments described above is used as the purposes of automotive interior material.Obviously can find out under equal area weight, to be had the light composite board of various one-tenth-value thickness 1/10 and physical property (such as low-intensity, middle intensity and high strength etc.) as required by the device fabrication of high-temperature pressurizing plasticizing forming from these embodiments above.For the inside roof lining in automotive interior part, the low-intensity light composite board with excellent impact absorption can be used; For glove compartment, strength lightweight composite board in can using; Because door lining, backrest etc. need high strength properties, thus high-strength light composite board can be used for these parts.Specifically, the automobile skin such as such as bumper and mud guard etc. that will manufacture by the alternative materials of iron needs consideration to have high strength properties.
By the produced high-performance light composite board of technical scheme of the present invention, automotive interior part forming machine can be used to be made into product, product can be used as the automotive interior part such as such as glove compartment, door lining, inside roof lining, backrest, and building and the industrial materials such as such as dividing plate, furniture and glued board.Can purposes as required apply according to high-performance light composite board of the present invention, because by composite board being designed to spread heat when there is sandwich construction and control heat bonding, composite board can be made the light composite board of varying strength under equal area weight.
The present invention is not limited only to above-described embodiment.Such as, even if shell similar to the polypropylene being used as base material in above-described embodiment for physical property-core bicomponent fibre is used as base material, also identical effect can be obtained.In addition, when carbon fiber similar to glass fibre for physical property, aramid fiber, nylon fiber are used as the organic reinforced fiber in above-described embodiment, also identical effect can be obtained.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (7)
1. a composite board, is characterized in that: comprise skin and internal layer, and described skin is divided into skin and lower skin, and upper skin, internal layer and lower skin superpose successively;
Described upper skin or lower skin are made up of the component comprising following weight portion:
Base material 100 parts,
Thermoplastic polyester 15 ~ 50 parts;
Or described upper skin or lower skin are made up of the component comprising following weight portion:
Base material 100 parts,
Thermoplastic polyester 20 ~ 40 parts,
Fortifying fibre 15 ~ 30 parts;
Or described upper skin or lower outer field thickness are 0.5 ~ 1mm;
Described internal layer is made up of the component comprising following weight portion:
Base material 100 parts,
Fortifying fibre 160 ~ 180 parts;
Or described internal layer comprises internal layer, middle internal layer and lower internal layer, wherein said upper internal layer or lower internal layer are made up of the component comprising following weight portion:
Base material 100 parts,
Fortifying fibre 100 ~ 120 parts;
Described middle internal layer is made up of the component comprising following weight portion:
Base material 100 parts,
Fortifying fibre 160 ~ 180 parts;
Or the thickness of described internal layer is 1 ~ 2.2mm;
Or described composite board density is 0.45 ~ 0.85g/cm
3;
Described fortifying fibre is selected from glass fibre, carbon fiber, aramid fiber;
Described thermoplastic polyester is polybutylene terephthalate (PBT) copolymer;
Described base material is selected from polypropylene or shell/core bicomponent fibre;
Described shell/core bicomponent fibre is made up of the component comprising following weight portion:
Thermoplastic polyester 100 parts,
High density polyethylene (HDPE) 50 ~ 80 parts;
The fusing point of described thermoplastic polyester is 180 ~ 220 DEG C;
The preferred fusing point of described high density polyethylene (HDPE) is 110 ~ 150 DEG C.
2. composite board according to claim 1, is characterized in that:
Described base material and thermoplastic polyester are in threadiness.
3. the preparation method of arbitrary described composite board in the claims 1-2, is characterized in that: comprise the following steps:
(1) upper and lower outer layer web and inner layer web is prepared:
(1a) fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 160 ~ 180 weight portions equably to form fibre blend, and fibre blend is obtained inner layer web by carding machine;
(1b) fibrillation and mix the base material of 100 weight portions and the thermoplastic polyester of 15 ~ 50 weight portions equably, or fibre blend, to form fibre blend, is obtained upper and lower outer layer web by carding machine by the thermoplastic polyester of the base material of 100 weight portions, 20 ~ 40 weight portions and the fortifying fibre of 15 ~ 30 weight portions;
(2) folding
By inner layer web obtained in step (1) and outer layer web according to together with upper outer layer web, inner layer web, the fibroreticulate sequence stack of lower skin, form multilayer network structure;
(3) connect
By acupuncture, cancellated for described multilayer each layer is interconnected, to make adhesive-bonded fabric;
(4) shaping
By adhesive-bonded fabric by heating plasticizing former, make described adhesive-bonded fabric carry out comprising the Continuous maching of preheating, heat bonding, pressurization, cooling, expansion and cutting in the apparatus, manufacture described high-performance light composite board thus.
4. the preparation method of arbitrary described composite board in the claims 1-2, is characterized in that: comprise following steps:
(1) inner layer web and upper and lower outer layer web is prepared:
(1a) fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 160 ~ 180 weight portions equably to form fibre blend, internal layer in the middle of fibre blend is obtained by carding machine;
(1b) fibrillation also mixes the fortifying fibre of 100 weight portion base materials and 100 ~ 120 weight portions equably to form fibre blend, by fibre blend by the obtained upper internal layer of carding machine or lower internal layer;
(1c) fibrillation also mixes the base material of 100 weight portions and the thermoplastic polyester of 15 ~ 50 weight portions equably, or fibre blend, to form fibre blend, is obtained upper and lower outer layer web by carding machine combing by the fortifying fibre of the base material of Homogeneous phase mixing 100 weight portion, the thermoplastic polyester of 20 ~ 40 weight portions and 15 ~ 30 weight portions;
(2) folding
By upper inner layer web obtained in step (1), middle inner layer web, lower inner layer web and outer layer web according to upper outer layer web, upper inner layer web, middle inner layer web, lower inner layer web together with the fibroreticulate sequence stack of lower skin, form multilayer network structure;
(3) connect
By acupuncture, cancellated for described multilayer each layer is interconnected, to make adhesive-bonded fabric;
(4) shaping
By adhesive-bonded fabric by heating plasticizing former, carry out comprising the Continuous maching of preheating, heat bonding, pressurization, cooling, expansion and cutting, obtain composite board.
5. the preparation method according to claim 3 or 4, is characterized in that: mutually being tangled by multi-layer thin fleece by upper needing machine and lower needing machine in described step (3) is connected together;
Or the surface density of the bonded fabric of described step (3) is 1600g/m
2-3000g/m
2.
6. the preparation method according to claim 3 or 4, it is characterized in that: in described step (4), moulding process is: adhesive-bonded fabric is passed through high temperature hot pressing plasticizing forming equipment with the speed of 8 ~ 10m/min, the internal structure of high temperature hot pressing plasticizing forming equipment comprises preheating unit, melting pressurization/expansion cell, cooling unit and cutter unit, wherein the temperature of preheating unit is 190 ~ 210 DEG C, the temperature of melting pressurization/expansion cell is 220 ~ 240 DEG C, and the Liang Ge district that cooling unit comprises remains the temperature of 55 ~ 65 DEG C and 25 ~ 35 DEG C respectively.
7. in a claims 1-2, arbitrary described composite board is used as the purposes of automotive interior material.
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CN103101260A (en) * | 2013-02-05 | 2013-05-15 | 江苏旷达汽车织物集团股份有限公司 | Anti-cutting interior composite fabric for vehicle |
CN103303214B (en) * | 2013-07-02 | 2015-04-08 | 无锡吉兴汽车部件有限公司 | Automobile sound-insulating pad and manufacturing technique thereof |
FR3029825B1 (en) * | 2014-12-12 | 2017-01-13 | Faurecia Automotive Ind | METHOD FOR MANUFACTURING A MOTOR VEHICLE EQUIPMENT PIECE AND MOTOR VEHICLE PART COMPRISING A COMPOSITE BODY THEREFOR |
FR3039566B1 (en) * | 2015-07-28 | 2017-09-08 | Faurecia Automotive Ind | WIRE, VEHICLE EQUIPMENT PIECE, WIRE FORMATION METHOD, AND METHOD FOR MANUFACTURING A VEHICLE VEHICLE ASSEMBLY THEREOF |
TWI616344B (en) * | 2016-03-31 | 2018-03-01 | 三芳化學工業股份有限公司 | Laminated composite material and method for making the same |
CN108237747A (en) * | 2016-12-26 | 2018-07-03 | 上海杰事杰新材料(集团)股份有限公司 | A kind of hard stab-resistant material and preparation method thereof |
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