CN107641208A - Fiber reinforced thermolplastic composite material floor rack and preparation method thereof - Google Patents
Fiber reinforced thermolplastic composite material floor rack and preparation method thereof Download PDFInfo
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- CN107641208A CN107641208A CN201711052746.7A CN201711052746A CN107641208A CN 107641208 A CN107641208 A CN 107641208A CN 201711052746 A CN201711052746 A CN 201711052746A CN 107641208 A CN107641208 A CN 107641208A
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Abstract
Fiber reinforced thermolplastic composite material floor rack and preparation method thereof, the material of the floor rack is fiber-reinforced thermoplastic resin, and the length of fiber is more than or equal to 10mm in fiber-reinforced thermoplastic resin.The present invention make full use of the fiber-reinforced thermoplastic resin strength of materials high and it is in light weight the advantages of, it is lighter than the floor rack of metal material in the prior art, weight in the case where not reducing floor rack bulk strength.The length of fiber is more than or equal to 10mm in fiber-reinforced thermoplastic resin, the skeleton of fibre matting interlocking is formed in ion lattice, the bonding strength and overall performance being greatly improved between adjacent grid, and during being hit, fibrous fracture, dial-out and absorbable big energy, improve the impact property of floor rack.Using the excellent anti-corrosion of fiber-reinforced thermoplastic resin material and non-absorbency energy, the decay resistance of floor rack is improved, extends its service life, and cleaning maintenance is easier, manufacture craft is simple, and cost is low.
Description
Technical field
The present invention relates to a kind of fiber reinforced thermolplastic composite material floor rack and preparation method thereof, belong to refrigerating equipment
The manufacturing technology field of middle floor rack.
Background technology
Be provided with floor rack in refrigerator car or frozen products insulated container on floor, floor rack be mainly used in bearing goods, with
And meeting the walking requirement of mechanized handling equipment, floor rack can also be raised in addition, be fallen into cleaning.It is current from water lattice
Sub- material is mainly aluminium alloy or stainless steel, during making first on strip or U-shaped material by die mould, rush socket, then assemble, weld
Socket, the technique is considerably complicated, and weld is it is difficult to ensure that quality is good and uniformly, during use easily cause weld and form defect and make
Into destruction, globality is not strong, and the loss of manufacture craft waste of material is big, and maintaining is also fairly cumbersome.Other metal material
The big weight weight of floor rack density of matter, corrosion resistance is limited, is particularly subject to salt corrosion, and because material is valuable, easily
It is stolen.
It is to develop low energy consumption, low cost, one of the important channel of low stain economy to mould Dai Gang, to mould Dai Gang tool
In body practice, the engineering plastic materials and parts and its sheet material of Nilong and highstrenghtpiston and its alloy etc., already in machinery, electronics, building
With the field widely popularization and application such as daily life requirement, and a feather in one's cap is achieved.Thermoplasticity included by composite
Plastic composite, because it has excellent mechanical performance, and there is recoverable, and for modern economy society
The development of meeting, increasingly with highly important positive role.Continuous fiber reinforced thermoplastic sheet material is early in the 90's of last century
Just have been used among aircraft, more there is development in recent years, many manufacturers all have developed this material, different with thermosetting plastics, heat
Thermoplastic plastic is not crosslinked, and is not solidified, thus can several times be heated, is molded and cool down without losing performance, so thermoplastic
It has been widely used as in each field to mould Dai Gang main material.As in the A of CN 103303547 by a kind of continuous glass fibre
Reinforced thermoplastics pallet and preparation method thereof, storage product metal tray is changed to increase thermoplastic material, CN
A kind of continuous glass fiber reinforced polypropylene cellular thermoplastic plates of 104175612 A and the A of CN 102248734, non-natural connect
Continuous filament yarn fabric reinforced thermoplastics sandwich composite board.
For the design feature of floor rack, use environment and stiffness demand in refrigerating equipment, a kind of thermoplasticity is developed
The ion lattice water of plastic material, it is exactly the direction that the present invention studies.
The content of the invention
Fiber reinforced thermolplastic composite material floor rack provided by the invention and preparation method thereof, bonding strength is high, whole
Body is good, it is in light weight, decay resistance is good, it is easy to clean maintenance and manufacture craft it is simple, service life length.The present invention also provides one
The preparation method of kind fiber reinforced thermolplastic composite material floor rack.
It is to reach above-mentioned purpose the technical solution adopted by the present invention：
Fiber reinforced thermolplastic composite material floor rack, it is characterised in that the material of the floor rack is fibre-reinforced thermoplastic
Property resin, and the length of fiber is more than or equal to 10mm in fiber-reinforced thermoplastic resin.
Preferably, described fiber-reinforced thermoplastic resin by continuous fiber reinforced thermoplastic resin and fibre length 10
~ 50mm fiber reinforced thermoplastic resin composition.
Preferably, the weight of described continuous fiber reinforced thermoplastic resin is no more than the 50% of floor rack gross weight, institute
The continuous fiber reinforced thermoplastic resin and the proportion of fiber reinforced thermoplastic resin stated are 0-0.6.
Preferably, the fiber content in described continuous fiber reinforced thermoplastic resin is 50-70%, long fibre
The fiber content for strengthening thermoplastic resin is 20-60%.
Preferably, the continuous fiber reinforced thermoplastic resin stated is continuous glass fiber reinforced polypropylene, long fiber reinforcement
Thermoplastic resin is long glass fiber reinforced polypropylene.
The preparation method of above-described fiber reinforced thermolplastic composite material floor rack, it is characterised in that it is described from
Water grid by fiber-reinforced thermoplastic resin by laying, heat and soften again punch forming, by fiber-reinforced thermoplastic resin grain
Expect injection molding or by fiber and thermoplastic resin by being kneaded direct punching press/injection molding online.
Preferably, described " laying " refers to：Continuous fiber reinforced thermoplastic resin fabric/prepreg tape and long fibre are increased
Heat-flash plastic resin moulding compound interval lays to form the compound laying of fiber-reinforced thermoplastic resin, and in adjacent layer fiber direction
Orthogonal, the number of plies of the compound laying of fiber-reinforced thermoplastic resin is according to continuous fiber reinforced thermoplastic resin fabric/preimpregnation
The thickness of band and fiber reinforced thermoplastic resin moulding compound, and the preset thickness determination of floor rack, fibre-reinforced thermoplastic
Property resin compounded laying length and width according to the preset length and width of floor rack determine.
Preferably, fiber-reinforced thermoplastic resin need to be added in heating mould after described " heating and softening " refers to laying
Heat is to more than 190 DEG C.
Preferably, need that fiber-reinforced thermoplastic resin is moved in diel rapidly after heating and softening, be placed in punching press
When in mould, the temperature of fiber-reinforced thermoplastic resin cannot be below 190 DEG C.
Preferably, stamping forming technological parameter is：From more than 2000 tons stamping machines, press closure pressing speed 30-
100mm/min, 50-90 DEG C of diel temperature, pressure 30-200MPa.
The beneficial effects of the invention are as follows：
1st, make full use of the fiber-reinforced thermoplastic resin strength of materials high and it is in light weight the advantages of, do not reducing floor rack entirety
It is lighter than the floor rack of metal material in the prior art, weight in the case of intensity.
2nd, the length of fiber is more than or equal to 10mm in fiber-reinforced thermoplastic resin, and fiber is formed in ion lattice and is twined
The skeleton of knot interlocking, the bonding strength and overall performance being greatly improved between adjacent grid, and during being hit, fiber
Fracture, transfer to and can absorb big energy, improve the impact property of floor rack.
3rd, using the excellent anti-corrosion of fiber-reinforced thermoplastic resin material and non-absorbency energy, the corrosion resistant of floor rack is improved
Corrosion energy, extend its service life, and it is easier to clean maintenance.
4th, manufacture craft is simple, and cost is low.
Embodiment
Embodiments of the invention are elaborated below.
Fiber reinforced thermolplastic composite material floor rack, it is characterised in that the material of the floor rack is fiber reinforcement
Thermoplastic resin, and the length of fiber is more than or equal to 10mm in fiber-reinforced thermoplastic resin.
Described fiber-reinforced thermoplastic resin is by continuous fiber reinforced thermoplastic resin A and fibre length in 10 ~ 50mm
Fiber reinforced thermoplastic resin B composition.
Described continuous fiber reinforced thermoplastic resin A weight is no more than the 50% of floor rack gross weight, described company
Continuous fiber-reinforced thermoplastic resin A and fiber reinforced thermoplastic resin B proportion is 0-0.6.
Fiber content is 50-70%, fiber reinforced thermoplastic resin B in described continuous fiber reinforced thermoplastic resin A
Fiber content be 20-60%.
Described continuous fiber reinforced thermoplastic resin A is continuous glass fiber reinforced polypropylene, long fiber reinforcement thermoplastic
Property resin B is long glass fiber reinforced polypropylene.
The preparation method of above-described fiber reinforced thermolplastic composite material floor rack, it is characterised in that it is described from
Water grid by fiber-reinforced thermoplastic resin by laying, heat and soften again punch forming, by fiber-reinforced thermoplastic resin grain
Expect injection molding or by fiber and thermoplastic resin by being kneaded direct punching press/injection molding online.
Described " laying " refers to：By continuous fiber reinforced thermoplastic resin A fabrics/prepreg tape and long fiber reinforcement thermoplastic
Property resin B moulding compound interval lays to form the compound laying of fiber-reinforced thermoplastic resin, and in adjacent layer fiber direction it is mutual
Vertically, the number of plies of the compound laying of fiber-reinforced thermoplastic resin according to continuous fiber reinforced thermoplastic resin A fabrics/prepreg tape and
The thickness of fiber reinforced thermoplastic resin B moulding compounds, and the preset thickness determination of floor rack, fiber reinforced thermolplastic tree
The length and width of the compound laying of fat determines according to the preset length and width of floor rack.
Described " heating and softening " refers to that fiber-reinforced thermoplastic resin need to be heated to super in heating mould after laying
Cross 190 DEG C.
Need that fiber-reinforced thermoplastic resin is moved in diel rapidly after heating and softening, be placed in diel
When, the temperature of fiber-reinforced thermoplastic resin cannot be below 190 DEG C.
Stamping forming technological parameter is：From more than 2000 tons stamping machines, press closure pressing speed 30-100mm/min, punching
50-90 DEG C of compression mould temperature, pressure 30-200MPa.
The embodiment for preparing floor rack is described in detail below：
Embodiment one：
The first step, the long glass that the continuous glass fibre polypropylene A and glass fiber content for being 50-70% from glass fiber content are 20-60%
Glass TRPP B as raw material, wherein continuous glass fibre polypropylene A and long glass fiber reinforced polypropylene B's
Proportion is 0.5, and continuous glass fibre polypropylene A uses fabric or prepreg tape, and long glass fiber reinforced polypropylene B is using molding
Material；
Second step, by continuous glass fiber reinforced polypropylene A fabrics/prepreg tape and long glass fiber reinforced polypropylene B moulding compounds
Interval laying forms the compound laying of glass fiber reinforced polypropylene, and in adjacent layer glass fibre direction it is orthogonal, fiber
Strengthen the number of plies of the compound laying of thermoplastic resin according to continuous glass fiber reinforced polypropylene A fabrics/prepreg tape and long glass fibres
The thickness of RPP B moulding compounds, and the preset thickness determination of floor rack, the compound laying of fiber-reinforced thermoplastic resin
Length and width according to the preset length and width of floor rack determine；In actual preparation, glass fiber reinforced polypropylene is multiple
The thickness for closing laying is greater than floor rack thickness, to make the thickness of floor rack made from punch forming in preset thickness
In the range of, the length of the compound laying of fiber-reinforced thermoplastic resin and the wide length and width that be slightly larger than floor rack, so as to
Trimmed after shaping；
3rd step, the compound laying of the glass fiber reinforced polypropylene of formation is placed in heating mould and heated and softened, until temperature
More than 190 DEG C；
4th step, the glass fiber reinforced polypropylene of heating and softening is moved in diel rapidly by manipulator, is placed in
When in diel, the temperature of glass fiber reinforced polypropylene cannot be below 190 DEG C；
5th step, punch forming is carried out using more than 2000 tons stamping machines, wherein, press closure pressing speed 30-100mm/min, punching
50-90 DEG C of compression mould temperature, pressure 30-200MPa.
In this embodiment, prepared using continuous glass fibre polypropylene A and long glass fiber reinforced polypropylene B as former material
Floor rack, wherein connection glass fiber reinforced polypropylene A refers to the length of the glass fibre uninterruptedly length requirement with product
Consistent glass fiber reinforced polypropylene, and long glass fiber reinforced polypropylene B refers to length of the glass fibre length in 10 ~ 50mm
Glass fiber reinforced polypropylene, continuous glass fibre polypropylene A fiber content are 50-70%, long glass fiber reinforced polypropylene
B fiber content is 20-60%, has the fiber of enough proof strengths and toughness in the floor rack for making to be prepared into, and have
The Forming Quality of guaranteed floor rack and the thermoplastic resin of rigidity.Good, the high mechanical strength using glass fibre corrosion resistance
The characteristics of, antiseptic property, intensity and the toughness of ion lattice water are improved, using polypropylene is good, water absorption rate is low and donsole table
The characteristics of face good luster, the water resistance and Forming Quality of ion lattice water are improved, while meet the rigidity requirement of floor rack.Even
Continuous glass fibre polypropylene A and long glass fiber reinforced polypropylene B is between the two every the direction of glass fibre in laying and adjacent layer
It is orthogonal so that continuous fiber is formed in the floor rack that punch forming obtains and long fibre tangles and interlocked into groined type structure
Fiber reinforcement, forms overall fibre structure, and the bonding strength of adjacent grid is high in floor rack, good integrity, and overall fine
Dimension structure has very high shock resistance, is greatly improved the intensity and service life of floor rack.Used in punch forming
More than 2000 tons stamping machines, the temperature of diel is 50 ~ 90 DEG C, and the temperature of glass fiber reinforced polypropylene is on 190 DEG C of left sides
The right side, while by the control of press closure pressing speed in 30-100mm/min, Stress control form hot material chill energetically in 30-200MP
Fast ram mode, drawing velocity is improved while material flowability energy is improved, be greatly improved ram efficiency, shorten punching press
The time of shaping, reduce cost of manufacture.
Embodiment two：
It is to use glass fiber content with the difference of embodiment one for the glass of 30%-70% and glass fibre length more than 10mm
Glass fibrofelt RPP paved in multi-layers is formed glass fiber reinforced polypropylene by fibrofelt RPP as raw material
Compound laying, and in adjacent layer glass fibre direction it is orthogonal, the number of plies is according to the thickness of continuous glass fiber mat enhanced polypropylene
Degree, and the preset thickness of floor rack determine.
The technical schemes of above embodiments of the invention carry out completely description, it is necessary to explanation be described embodiment only
Only it is the part of the embodiment of the present invention.Based on the embodiment in the present invention, those of ordinary skill in the art are not making wound
The every other embodiment that the property made is obtained on the premise of working, belongs to the scope of protection of the invention.Example ion as mentioned
The molding mode of lattice water can also be used by the injection molding of fiber-reinforced thermoplastic resin pellet or by fiber and thermoplastic resin
By being kneaded direct punching press/injection molding online.
Claims (10)
1. fiber reinforced thermolplastic composite material floor rack, it is characterised in that the material of the floor rack is fiber reinforcement heat
Plastic resin, and the length of fiber is more than or equal to 10mm in fiber-reinforced thermoplastic resin.
2. the fiber reinforced thermolplastic composite material floor rack stated according to claim 1, it is characterised in that described fiber increases
Heat-flash plastic resin is by continuous fiber reinforced thermoplastic resin（A）With fibre length 10 ~ 50mm long fiber reinforcement thermoplasticity
Resin（B）Composition.
3. fiber reinforced thermolplastic composite material floor rack according to claim 2, it is characterised in that described is continuous
Fiber-reinforced thermoplastic resin（A）Weight be no more than floor rack gross weight 50%, described continuous fiber reinforced thermoplastic
Resin（A）With fiber reinforced thermoplastic resin（B）Proportion be 0-0.6.
4. fiber reinforced thermolplastic composite material floor rack according to claim 2, it is characterised in that described is continuous
Fiber-reinforced thermoplastic resin（A）Middle fiber content is 50-70%, fiber reinforced thermoplastic resin（B）Fiber content be
20-60%。
5. fiber reinforced thermolplastic composite material floor rack according to claim 2, it is characterised in that described is continuous
Fiber-reinforced thermoplastic resin（A）For continuous glass fiber reinforced polypropylene, fiber reinforced thermoplastic resin（B）For long glass
TRPP.
6. the preparation side of the fiber reinforced thermolplastic composite material floor rack described in claim 1 to any one of claim 5
Method, it is characterised in that described floor rack by fiber-reinforced thermoplastic resin by laying, heat and soften again punch forming, by
The injection molding of fiber-reinforced thermoplastic resin pellet or by fiber and thermoplastic resin by being kneaded direct punching press/be molded into online
Type.
7. the preparation method of fiber reinforced thermolplastic composite material floor rack according to claim 6, it is characterised in that
Described " laying " refers to：By continuous fiber reinforced thermoplastic resin（A）Fabric/prepreg tape and fiber reinforced thermoplastic resin
（B）Moulding compound interval lays to form the compound laying of fiber-reinforced thermoplastic resin, and in adjacent layer fiber direction it is orthogonal,
The number of plies of the compound laying of fiber-reinforced thermoplastic resin is according to continuous fiber reinforced thermoplastic resin（A）Fabric/prepreg tape and length
Fiber-reinforced thermoplastic resin（B）The thickness of moulding compound, and the preset thickness determination of floor rack, fiber reinforced thermolplastic tree
The length and width of the compound laying of fat determines according to the preset length and width of floor rack.
8. the preparation method of fiber reinforced thermolplastic composite material floor rack according to claim 6, it is characterised in that
Fiber-reinforced thermoplastic resin need to be heated beyond 190 DEG C in heating mould after described " heating and softening " refers to laying.
9. the preparation method of fiber reinforced thermolplastic composite material floor rack according to claim 6, it is characterised in that
Need that fiber-reinforced thermoplastic resin is moved in diel rapidly after heating and softening, when being placed in diel, fiber increases
The temperature of heat-flash plastic resin cannot be below 190 DEG C.
10. the preparation method of fiber reinforced thermolplastic composite material floor rack according to claim 9, it is characterised in that
Stamping forming technological parameter is：From more than 2000 tons stamping machines, press closure pressing speed 30-100mm/min, diel temperature
50-90 DEG C of degree, pressure 30-200MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052746.7A CN107641208A (en) | 2017-11-01 | 2017-11-01 | Fiber reinforced thermolplastic composite material floor rack and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052746.7A CN107641208A (en) | 2017-11-01 | 2017-11-01 | Fiber reinforced thermolplastic composite material floor rack and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107641208A true CN107641208A (en) | 2018-01-30 |
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ID=61124643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711052746.7A Pending CN107641208A (en) | 2017-11-01 | 2017-11-01 | Fiber reinforced thermolplastic composite material floor rack and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107641208A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419420A (en) * | 2012-05-25 | 2013-12-04 | 上海杰事杰新材料(集团)股份有限公司 | Thermoplastic sandwich composite material, and preparation method and use thereof |
-
2017
- 2017-11-01 CN CN201711052746.7A patent/CN107641208A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419420A (en) * | 2012-05-25 | 2013-12-04 | 上海杰事杰新材料(集团)股份有限公司 | Thermoplastic sandwich composite material, and preparation method and use thereof |
Non-Patent Citations (2)
| Title |
|---|
| 中国汽车工程学会 组编: "《汽车先进制造技术跟踪研究2016》", 31 October 2016, 北京理工大学出版社 * |
| 冯新德 主编: "《高分子词典》", 30 June 1998 * |
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Effective date of registration: 20200508 Address after: Room 403, Scientific Research Building 219 Huanghe South Road, Tianyuan District, Zhuzhou City, Hunan Province, 412007 Applicant after: Zhuzhou Times Engineering Plastics Technology Co.,Ltd. Address before: 412007 No. 18 Haitian Road, Tianyuan District, Hunan, Zhuzhou Applicant before: Zhuzhou Times New Material Technology Co.,Ltd. |
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Application publication date: 20180130 |