JPS5948148A - Mixed growth fiber reinforced plastic shape - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mixed growth fiber reinforced shirasu deck molded product using at least 24 meters of Nagatsuki leaf as a reinforcing material.

Long-fiber-reinforced shirasu book (hereinafter referred to as 1 r' RP, 1) is a composite material (I15) in which a large number of long-woven shoulders (reinforcing materials) are embedded and fixed in a glass deck.
++ 1". This is the plus book Tsuyoshi ('l\r
-The 11 properties of the material have been reinforced and improved with long fibers.
Note 1] has been collected in Mi, and development research is actively underway.

In order to avoid this high rigidity, it is necessary to embed and fix a relatively large amount of the elastic skewer in the resin.However,
Generally, long fibers with high stiffness ↑11 have high 1lTIi. Therefore, it is desirable to develop [R1] which can achieve relatively high rigidity even if the amount of highly rigid long fibers used is small.
'l was there.

In view of the above circumstances, the present inventors decided to use the long fiber eaves 1 with a high elastic modulus... in spite of the fact that the use of the long fiber eaves 1 is small. We conducted exploratory research in order to obtain a long-form RP molded product with long fibers embedded in the outer layer of the RP molded product. tel:, Long fibers with relatively low bullet t/l ratio are embedded inside.'CI), [R
I) It was discovered that the flexural modulus of the molded product after rest is the same as that of the FRI) molded product using only a large amount of long fibers with a high modulus of elasticity, or is not so low. Based on this discovery, we devised a hybrid 1-' RP molded product with the following configuration.

The shape of the hybrid F r<P molded product of the present invention is a good civilian shape with a substantially constant cross section. this? As a reinforcement material for fli, bullet 1! (Two types of long fibers with different ratios are used.These multiple types of long fibers are embedded and fixed in the resin, extending in the longitudinal direction of the molded product.The molded product of the present invention It consists of at least 2 W'J /) 1 r, and the outer layer has the most bullets! A long shoulder 1 with a high I modulus is embedded and fixed, and long fibers with a low elastic modulus are embedded and fixed in the inner layer.

N 41 HtliL, 7M 'J'tA Toshi
'Rigidity V1 and other properties of CI-RP molded products +! Carbon fiber shoulder [, bo[1]
Various types of long fibers such as woven fibers, silini-carbide fibers, alumino fibers, silica fibers, highly oriented polymer fibers, glass fibers, etc., are used [-1'< 1) depending on the purpose of the molded product. U
3U can be selected and used.

Highly oriented polymer fibers (well, if you trace the middle molecular chain to -N
I:, ◇-・N l l CO0-cO-i ('show'i
6 It is a hemolecular cord made of individual polymers blended into a rod shape, like Lukbla (trade name). i43, as a reinforcing material (for J1 overlapping plural f! type of long chess fibers n, and ``RI'' of good sense H), the material included in the molded product is [Kawa de 1 ) Determine as appropriate depending on the use of the molded product.

The resin serves as the full material of r'RP and is the main component in which the long fibers are embedded, and its fiRs are appropriately selected and used depending on the use of the FRI-) molded product. For example, -Tbo:
1.1 resin, unsaturated polyJ stell resin, notchol resin, etc. can be used.

Combination of these resins and the long fibers - (1,
The effects of the present invention can be more effectively exhibited by combining J-Boy resin, NJ raw material, and glass #I string.

In this case, carbon fiber silk of 411 layers is embedded and fixed in the 91st layer of the FRP molded product, and glass fibers with a relatively low elastic modulus are fixed in the inner layer.

[1R]) The molded article can be made hollow. Alternatively, the molded product may be configured to have a filament of 3Fi or more and no long fibers are embedded in the innermost layer.

The cross-sectional shape of the hybrid 1" RP molded product can be various shapes such as circular or rectangular depending on the use of the molded product. is determined by the cross-sectional shape of the die.For example, if the cross-sectional shape of the die is circular C, the cross-sectional shape of the molded product will also be circular, and if the cross-sectional shape of the die is rectangular C', the cross-sectional shape of the molded product will also be square.

The pultrusion method is a manufacturing method suitable for "R1" molding manufacturing that has an elongated external shape, and is characterized by the use of a die with a through hole of a fixed shape. A rope made by gathering and spinning a large number of long fibers is impregnated with resin and then arranged in one direction, and the arranged []-pings are continuously passed through the through holes of a die, and the resin is cured within the die. This is a manufacturing method in which a long F II +) molded product with a constant mouth cross-section is continuously taken out from the die.

When manufacturing the hybrid [-RP] molded product of the present invention using the pultrusion method, before putting the resin-impregnated long fibers into a die, the long fibers with a high elastic modulus are added to the outer layer, and the elastic modulus is Low long fibers (inner layer) are arranged in a sequential manner.

The l-R)) molded product of the present invention has the above 4J%
List the advantages.

First, even if some of the long fibers of Takashi 11 skewers are substituted for a good quality kissling string with a low elastic modulus, the curved bullet fI rate of the molded product will decrease by 1! Reduced high bullet 11I
If the long fibers of the high-impact f1 skewer are expensive compared to the proportion of the string, then by adopting the present invention, it can be made cheap (and comparatively It is possible to reduce the molded product [R[] which has the desired bending modulus of elasticity.For example, the carbon fiber eave t is 25vo1% and the glass fiber assembly is 25vol1.
The hybrid rRI) molded product of the present invention containing 5Qvo1% of carbon brocade 1 is 1]2 of the conventional [R] molded product containing 5Qvo1%, and the flexural modulus is 1° while maintaining 70% culm. Secondly, the surface properties such as wear properties are the same as those of the outer layer of the hybrid 1-RI- molded product.

For example, the first generation F of the present invention using carbon fiber in the outer layer part
Rl) The molded product has excellent friction, wear properties, and surface smoothness, comparable to carbon fiber reinforced plus boots.

Thirdly, long fibers that are embedded and fixed in the inner layer can compensate for the drawbacks of long fibers that are embedded and fixed in the outer layer.

For example, glass fiber reinforced plastic books have better impact strength than carbon fiber reinforced plastics. Therefore C1
The hybrid R:RI molded product of the present invention has carbon fibers immediately embedded and fixed in the outer layer and glass fibers embedded and fixed in the inner layer.
It has excellent impact resistance.

The present invention will be explained in detail below.

FIG.
]-Resin impregnation tank 12, etc., thermoforming die 13, which are sequentially distributed in the direction of movement of the rule 11, on the right side, i.e., the common sense If.
, and a collection device 14.

Winding [-1-L No. 11, a large number of long fibers were collected and spun. There is a member C'. From this winding device 11, 11-pin pulls are sequentially and continuously drawn. Pull out tt 1= +-+-hing 5
is filled in the resin impregnation tank 12! , , : Guided into the resin 6. d3, at this time [-1-ping 5 (5L), a plurality of guides [1-ru 121 attached to the resin impregnation tank 12]
) Guided to CtfN fat 61[1. A large number of the resin 6-coated 1 or 11-jings 550 are collected and arranged in one direction, and then formed into a thermoforming die 13 with a constant shape of 117i.
3. I am led inside. The C resin in the thermoforming tool 13 is heated and hardened.

ξC Manufacture 4q, 1:: I'RI' Molded product 7
Then, the heat-formed pieces 1 and 3/11 are continuously taken out from the take-off device 1/I.

1st Example pultrusion method
Hybrid [: f'? , )' Manufactured a molded product.

The long fibers include carbon fiber 55 with a diameter of 7fl111;
Resin binding using 10 μm glass fiber eaves) 6
IJ, I-ho 1-shi IN fat 61 wo use ita. m
The content of the lm fiber H55 in the composite F I'<P molded product was 25vol%, and the same was true for the glass fiber 56.

Figure 2 (a'') shows the hybrid 1 which is the first embodiment of the present invention.
': RF) There is a cross-sectional view C of the molded product 70. Carbon fiber 55 is immediately fixed to the outer layer, and gaff fiber shoulders [5] are attached to the inner layer.
6 consists of a buried and fixed structure.

FIGS. 2(!), <a>, and (d) are cross-sectional views τ of a hybrid FRP molded product 73 prepared for comparison with the hybrid FRP molded product of the first embodiment. (11) This is a hybrid molded product 73 in which carbon fibers 55 and glass fibers 5G are embedded and fixed in clay resin 61. (C> is the upper side Hybrid F l' in which glass fiber 56 is embedded and fixed in the upper side and carbon fiber 55 is embedded and fixed in the upper side.
(+) There is a molded product 73r. (In (1), contrary to (a), the glass fibers 56 are buried and fixed in the outer layer, and the carbon I in the inner layer.
Bury and fix I chick 55! , : Hybrid [RE] molded product 73. These hybrids [RP molded product 73 is made of carbon fiber 55
The mixed FRP molded product 70 of the first embodiment differs only in the blending form of the glass fiber eaves f5]6, and other conditions, such as the ratio of woven fabric included in the amount of mixed FRP molded. etc. are the same as the hybrid 1-Rl') molded product 70 of the first example of Ripe C.
;C is there. .

Figure 2 (a), (h), (C), (For each blending form of (1), charcoal M consumption 5;) and glass shoulder 15j6 are collected and heated to form a dozen 1331\guide. Figure 2 (a), and (1,+), (c), (
(1) 4T J, sea urchin, carbon woven Ile
This is realized by arranging the glass fibers 56 and 5j'5, and the heating humidity of the resin in the thermoforming tray 13 (1 Hanoi) is I 30 <:, heating time 20 minutes! ,two,.

The first embodiment, i.e., (a) tP formation)'f<I)
The flexural modulus of the molded product 70 is 13, OLon, -”
mm' (ah) 1 (-1 This is a comparative sample (1)) Ll, 5, 8 ton 7mm2 (
c) G, jl, 2ton/mm? , ((l
) is 4.6H1ll /'m1 -) 7C6J゛, Carbon Kiken 1 I no wo 550vo1% fixed ()I
, 2F Rl) Curve of molded product (j elasticity: P is 12 ton
7mm2, and only the glass fiber eave f is Ei Ov.

The flexural modulus of the molded product with a fixed 1% tsubo membrane is 2°5 IOn/mm2t'a-).

In other words, the hybrid molded product 70 of the first embodiment has a flexural modulus that is one degree lower than that of the comparative samples (11), (c), and (d). In addition, using only the carbon fiber eaves, the bending resistance was 70% lower than that of the molded product.

I1d3, -1 strong force (yo, hybrid of the first embodiment [1'<
1]] 170 kgcm/cm for molding? -r g5
5(')vo1% of zy of carbon $6 Ill is embedded and fixed Iζ, Fi Rl) molded product U' tJ ib O
bqcm,,' Cl112te%le.

The molded product MAR (, hybrid F Rl of the first example) had the same wear characteristics as the molded product IR [) using only carbon fibers.

Second Embodiment The second embodiment is substantially the same as the first embodiment. The second embodiment differs from the first embodiment in that the cross-sectional shape of the hybrid FRP molded product is circular as shown in FIG. , 33rd
Figure (a) shows the hybrid [-r<) of the second embodiment of the present invention.
) There is a cross-sectional view C of the molded product 70, FIGS. 3(b), (C),
and ((1) is the hybrid FRP molded product 70 of the second embodiment
There is a cross-sectional view C of an l (-tl! formed r-RI) molded product 73 for comparison.

2nd embodiment, hit, Figure 3 (a) M acceptance hybrid "1ri1
) The bending elasticity 111 of the molded product 70 was also 1714M compared to that of the '1st example, which was lower than that of the comparative samples 1)), (c), and (d).

In short, the present invention is a long-shaped molded product with a regular shape C, in which a high bullet + 14 square eave is embedded and fixed in the outer layer, and There is a hybrid molded product C in which a low elongation 1'l!?7 sensible eaves 1 is buried and fixed.

As mentioned in the example, from k to 1) light 1) or tr) (J
``The hybrid F I'(l) molded product of the present invention requires a small amount of high-elastic skewer fibers, and has a relatively high elastic modulus of curved tJ. f <1') Molded product (-
be.

[Brief explanation of drawings]

Figure 1 (, 1 draw 1 friend J: F l'< I
) Schematic diagram of an apparatus for manufacturing a molded product, FIG. 2 <a> is a cross-sectional view of a molded product, FIG. 2 (b), (0), and ((1) is a cross-sectional view of a molded product prepared for comparison with the first embodiment/:n FRI), and FIG. 33(a) is a cross-sectional view of the hybrid r
' The cross-sectional views of the RP molded product, Figure 3 (1)), (C), and (d) were created for comparison with the second example:
i11 F R)) Cross-sectional view of the molded product -C. 11... Winding [1-ru 12...
Resin impregnation tank 13... Heat molding die 14...
...Take-off device 4)5...Carbon fiber
5G...Glass fiber 61...1 Boxy resin 70...Mixed "R"] Molded product patent applicant [] Hondenso Co., Ltd. representative Patent attorney Hirotoshi Okawa Patent Attorney Hijiyuki Shudo Patent Attorney Akio Maruyama Figure 1 11 Figure 2 bb 55 Figure 3

Claims (1)

[Scope of Claims] (1) In a long fiber-reinforced plastic deck molded product in which lIi has a long C with a substantially fixed surface and is long in the longitudinal direction #J]i #lf is embedded and fixed in a resin. , the long fibers are made up of at least two types of long fibers with different moduli of elasticity; the elongated molded article is made up of at least two layers; the long fibers with the highest modulus of elasticity are embedded and fixed in the outer layer; A mixed-growth fiber-reinforced plastic molded product characterized by having long fibers with low elastic modulus buried and fixed in the parts. (2) The long Ili string is made of carbon fiber, carbon fiber, silicon fiber, etc. f1 N-carbide fiber shoulder f1 Aluminum strand, silica fiber shoulder C1 Highly oriented polymer strand, Gaffus strand - C
[The mixed growth fiber reinforced plastic molded product according to claim 1] wherein the resin is one of the following: 1-boxy resin, unsaturated poly-sprue resin, and phenolic resin. (33) The fiber-reinforced plastic deck molded product according to claim 1, wherein the elongated molded product is hollow in the longitudinal direction. (/I) The elongated molded product is composed of at least 1j3ff4, and the innermost part has long fibers embedded (not included). ) The elongated molded product is composed of two layers, in which carbon fibers are embedded and fixed in the outer layer part, and glass fibers are embedded and fixed in the inner layer part (-). A grown fiber-reinforced plastic molded article. (6) A mixed growth fiber-reinforced plastic snack molded article according to claim 1, wherein the elongated molded article has an h-shaped cross section. (7) The elongated molded article The mixed growth fiber reinforced plus deck molded article according to claim 1, wherein the cross-sectional shape of the molded article is circular.