CN104971490A - Preparation method of special-fiber-reinforced skis - Google Patents
Preparation method of special-fiber-reinforced skis Download PDFInfo
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- CN104971490A CN104971490A CN201410144740.2A CN201410144740A CN104971490A CN 104971490 A CN104971490 A CN 104971490A CN 201410144740 A CN201410144740 A CN 201410144740A CN 104971490 A CN104971490 A CN 104971490A
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- skis
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Abstract
The invention discloses special-fiber-reinforced skis which are composed of a composite material inner core, a bottom board and a surface layer. The inner core is formed by compositing high-molecular-weight foamed polyethylene and graphite fibers and is 4.5-5.5 mm in thickness. The bottom board is made from linear low-density polyethylene of which the density is 0.932-0.935 g/cm<3> and the thickness is 1-2 mm. The surface layer is formed by compositing carbon fibers and polyethylene and is 1.5-2.5 mm in thickness. By means of the fiber-reinforced polyethylene material for preparing the inner core, the inner core of the skis is light in mass, is good in mechanical performances and is good in designability. The graphite fiber is excellent in electric conductivity, so that energy generated from vibration on the skis during use can be converted into electric energy and consumed, so that the skis are enhanced in vibration reducing performance. The bottom board is made from the low-density polyethylene so that the skis are improved in strength, toughness, environmental stress crack resistance, impact strength resistance and cold resistance and the like.
Description
Technical field
The present invention relates to a kind of preparation method of skis, the preparation of its inner core belongs to field of polymer composite material, and final prepared product is skis equipment making field.
Background technology
The material of skis and by material all more complicated, for many years, resistance between the reduction planing surface of skis and snow face, the lightweight of skis, improve the damping performance of skis, improve the endurance of skis and turnability, and improve the electric conductivity of skis, prevent from sliding electrostatic effect cause skis absorbs impurity and affect the problems such as speed always pay close attention to by people.High-performance carbon fibre, as a kind of dual-use industrial materials with special performance, has been widely used in the reinforcement of advanced composite material.Now, the purposes of various carbon fibre composite is expanded day by day, and development is very rapid, but most popular be carbon fiber resin matrix composite.
Technical problem to be solved by this invention is, graphite fibre enhanced foaming composite polyethylene material is utilized to prepare skis inner core, due to graphite fibre, to have proportion little, intensity is high, modulus is high, corrosion-resistant premium properties such as grade, carries out strengthening core performance in rear prepared skis to polyethylene foamed and is significantly increased.And due to the electric conductivity that graphite fibre is excellent, electronic loop is defined in skis inside, the electronic loop formed by resistance in graphite fibre and electric energy after the power conversion that skis in use produces due to vibrations becomes electric energy is consumed, and system shake frequency can reach more than 80%.Improve the tracing ability of skis on snow face and maneuverability by increasing graphite fibre simultaneously.
Summary of the invention: research purpose of the present invention is that solving skis in use causes skis to absorb impurity because of electrostatic effect thus affect the problem of skis sliding speed.
In order to realize the object of foregoing invention, solving skis problem in actual applications, the invention provides following technical scheme:
(1) cut into slices by the composite that graphite fibre enhanced foaming polyethylene is prepared from, slice thickness is 4.5 ~ 5.0mm, and long 150 ~ 160cm, wide 25 ~ 35cm, as the inner core material of skis.
(2) using LLDPE material sheet as skis primer, its thickness is 1.2 ~ 1.8mm, long 150 ~ 160cm, wide 25 ~ 35cm;
(3) density of above-mentioned (2) step neutral line low density polyethylene (LDPE) is 0.932 ~ 0.935g/cm
3;
(4) skis inner core prepared in above-mentioned (1) and (2) step and primer are passed through to heat, extruding, bonding is prepared into composite bottom board;
(5) composite bottom board prepared in above-mentioned (4) step is heated to 110 ~ 130 DEG C, be positioned in mould and carry out pressurized treatments, pressurization pressure is 1012Pa, and keeps 10 ~ 20min;
(6) use fibre reinforced polythene material to prepare the superficial layer of skis, its thickness is 1.8 ~ 2.2mm, long 125 ~ 135cm, wide 25 ~ 35cm;
(7) composite bottom board prepared in ski surface layer prepared in above-mentioned steps (6) and step (5) is carried out compoiste adhering, carry out edge pruning according to required form, obtained finished product skis product.
(8) the invention has the advantages that: skis prepared by the method for the invention, main body uses material to be polythene material, lightweight, fine corrosion resistance, prepared skis inner core is prepared from by graphite fibre enhanced foaming composite polyethylene material, solve skis in use cause skis to absorb impurity by electrostatic effect and affect the problem of skis speed, solve skis is converted into power consumption problem by vibration energy simultaneously.
(9) structural representation of accompanying drawing product prepared by the present invention.
accompanying drawing illustrates:
(1) in accompanying drawing, Fig. 1 is the overall construction drawing of skis;
(2) Fig. 2 is the surface layer structure figure of skis;
(3) Fig. 3 is the inner sandwich layer structure chart of skis.
Detailed description of the invention:
Set forth the specific embodiment of the present invention by reference to the accompanying drawings, the preparation method being a kind of special fibre and strengthening skis set forth in the present invention, the method includes the steps of:
(1) skis as shown in the figure, its agent structure is by bottom, and inner sandwich layer and superficial layer three part form.
(2) as being 1. superficial layer in Fig. 1, it prepares material is carbon fiber reinforced composite polyethylene material;
(3) be 2. be prepared into composite with polyethylene foamed, obtained skis inner core plates after section after the process of viscose foundation stone ink fiber prepreg in Fig. 1.
(4) bottom of 3. this patent skis in Fig. 1, is 0.935 g/cm by density
3lLDPE section be prepared from, its thickness is 1.2 ~ 1.8mm;
(5) if Fig. 2 is ski surface layer schematic diagram, be 4. polyamide material, its excellent mechanical property, rub resistance, excellent weatherability makes it extensively be employed in sports equipment;
(6) if Fig. 2 is ski surface layer schematic diagram, 5. for fibre reinforced composite polyethylene material is prepared from;
(7) if Fig. 3 is skis inner sandwich layer schematic diagram, 6. in figure is liquid metal, and its effect makes skis have resilience function;
(8) in this patent, composite bottom board is heated to 110 ~ 130 DEG C, is positioned in mould and carries out pressurized treatments, and pressurization pressure is 1012Pa, and keeps 10 ~ 20min;
(9) whole its advantage of invention product is lightweight, fine corrosion resistance, prepared skis inner core is prepared from by graphite fibre enhanced foaming composite polyethylene material, solve skis in use cause skis to absorb impurity by electrostatic effect and affect the problem of skis speed, fall being converted into power consumption by vibration energy in skis motion process, damping frequency reaches more than 80% simultaneously.
Claims (8)
1. special fibre strengthens a preparation method for skis, and its feature is made up of composite inner core, base plate and superficial layer.
2. preparation method according to claim 1, it is characterized in that the inner sandwich layer of described skis is that graphite fibre and polyethylene foamed composite are prepared from, its thickness is 4.5 ~ 5.5mm.
3. preparation method according to claim 1, it is characterized in that described skis bottom is prepared from by LLDPE material, its thickness is 1 ~ 2mm.
4. preparation method according to claim 1, is characterized in that described skis inner sandwich layer and bottom are by heating, mold pressing and be prepared into composite bottom board.
5. preparation method according to claim 1, is characterized in that the superficial layer of described skis is prepared from by fibre reinforced polythene material, and its thickness is 1.5 ~ 2.5mm.
6. preparation method according to claim 1, is characterized in that the length of described skis is 150 ~ 160cm; Before-in-rear width is 29-25-29cm.
7. preparation method according to claim 3, is characterized in that the LLDPE density that described skis bottom uses is 0.932 ~ 0.935g/cm
3.
8. preparation method according to claim 4, it is characterized in that described skis warm temperature is 120 DEG C, pressurization pressure is 1010 ~ 1014Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144740.2A CN104971490A (en) | 2014-04-12 | 2014-04-12 | Preparation method of special-fiber-reinforced skis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144740.2A CN104971490A (en) | 2014-04-12 | 2014-04-12 | Preparation method of special-fiber-reinforced skis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104971490A true CN104971490A (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410144740.2A Pending CN104971490A (en) | 2014-04-12 | 2014-04-12 | Preparation method of special-fiber-reinforced skis |
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| CN (1) | CN104971490A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075873A (en) * | 2016-08-19 | 2016-11-09 | 哈尔滨体育学院 | A kind of modified fibre strengthens the preparation method of skis |
-
2014
- 2014-04-12 CN CN201410144740.2A patent/CN104971490A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075873A (en) * | 2016-08-19 | 2016-11-09 | 哈尔滨体育学院 | A kind of modified fibre strengthens the preparation method of skis |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151014 |