JPH0530785B2 - - Google Patents
Info
- Publication number
- JPH0530785B2 JPH0530785B2 JP1281783A JP28178389A JPH0530785B2 JP H0530785 B2 JPH0530785 B2 JP H0530785B2 JP 1281783 A JP1281783 A JP 1281783A JP 28178389 A JP28178389 A JP 28178389A JP H0530785 B2 JPH0530785 B2 JP H0530785B2
- Authority
- JP
- Japan
- Prior art keywords
- glass fiber
- fiber bundle
- molding material
- forming agent
- wound body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003365 glass fiber Substances 0.000 claims description 59
- 239000003795 chemical substances by application Substances 0.000 claims description 40
- 238000004513 sizing Methods 0.000 claims description 21
- 229920005992 thermoplastic resin Polymers 0.000 claims description 15
- 239000012778 molding material Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 7
- 239000003960 organic solvent Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 5
- 239000008188 pellet Substances 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000007822 coupling agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000012783 reinforcing fiber Substances 0.000 description 3
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 epoxysilane Chemical compound 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、繊維補強熱可塑性樹脂体（FRTP）
の製造に有用な成型材料製造方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fiber reinforced thermoplastic resin body (FRTP).
The present invention relates to a method for manufacturing a molding material useful for manufacturing.
FRTPはガラス繊維のような補強繊維と熱可塑
性樹脂を含むペレツト（繊維含有ペレツト）を原
料とし、射出成型法によつて製造される。
FRTP is manufactured by injection molding using pellets (fiber-containing pellets) containing reinforcing fibers such as glass fibers and thermoplastic resin.
繊維含有ペレツトは通常補強繊維切断物（例え
ばチヨツプドストランド、CSと略称）と熱可塑
性樹脂を加熱下に混練することによつて製造され
るが、混練操作中に補強繊維が寸断され易く、こ
のため、このペレツトを使用して得られたFRTP
の強度が低下する難点がある。 Fiber-containing pellets are usually produced by kneading cut reinforcing fibers (for example, chopped strands, abbreviated as CS) and thermoplastic resin under heat, but the reinforcing fibers are likely to be shredded during the kneading operation. , therefore, the FRTP obtained using this pellet
The problem is that the strength of the material decreases.
上記難点を解消するため、ストランド、ロービ
ングのような連続したガラス繊維束に熱可塑性樹
脂を被着させた後、切断して繊維含有ペレツトを
製造する方法（長尺法と呼ぶ）が提案されて長尺
法においては連続したガラス繊維束が使用される
が、工業的にはガラス繊維束を円筒状に回巻した
回巻体（円筒状回巻体）が使用され、ガラス繊維
束は円筒状回巻体から引出され、熱可塑性樹脂被
着装置に連続して供給される。 In order to overcome the above-mentioned difficulties, a method has been proposed in which continuous glass fiber bundles such as strands or rovings are coated with thermoplastic resin and then cut to produce fiber-containing pellets (referred to as the long length method). Continuous glass fiber bundles are used in the long method, but industrially, a cylindrical wound body (cylindrical wound body) of glass fiber bundles is used; It is drawn out from the roll and continuously fed to a thermoplastic resin coating device.
ガラス繊維束が水分を含有していると、この水
分がFRTP成型の際気化しFRTPの性能が低下す
るので、円筒状回巻体としては予め乾燥したも
の、例えばタイプ30のような直捲ロービング回巻
体が使用される。 If the glass fiber bundle contains moisture, this moisture will evaporate during FRTP molding and the performance of FRTP will deteriorate. Therefore, the cylindrical wound body should be a pre-dried one, such as a direct-wound roving such as Type 30. A rolled body is used.
従来の長尺法は、次のような問題点を有する。
乾燥した円筒状回巻体からガラス繊維束を引き出
し、熱可塑性樹脂被着装置へ送る間に、ガラス繊
維にも毛羽立ちを生じて、樹脂のガラス繊維束に
対する被着が不均一となり、FRTPの品質にバラ
ツキを生じ易く、又ガラス繊維束が切断してしま
うことがある。特にこの傾向は集束剤として、ア
クリル樹脂、ウレタン樹脂、AS樹脂を含むもの
を使用した場合に著しい。
The conventional long length method has the following problems.
While the glass fiber bundle is pulled out from the dried cylindrical roll and sent to the thermoplastic resin coating device, the glass fibers also become fluffy, resulting in uneven adhesion of the resin to the glass fiber bundle, which may affect the quality of the FRTP. It is easy to cause variations in the glass fiber bundles, and the glass fiber bundles may be broken. This tendency is particularly noticeable when a sizing agent containing acrylic resin, urethane resin, or AS resin is used.
又ガラス繊維束を引出す際、ガラス繊維束が完
全に直線状とならず、撚れ、弯曲等の歪が残存
そ、このため熱可塑性樹脂の被着が不均一とな
り、FRTPの品質にバラツキを生ずる原因とな
る。このような歪は円筒状回巻体からガラス繊維
束を引出す際、回巻体の長手方向に引出すと引出
されたガラス繊維束に発生する、円筒状回巻体の
周長当り１回の撚れによるものと考えられ、円筒
状回巻体を円筒の軸を中心として回転自在に支持
して引出しを行なうことにより、上述した引出し
によつて生ずる撚れの発生を防止することも試み
られるが、残存歪を完全に除去し、均質なFRTP
を得ることは困難である。 Furthermore, when the glass fiber bundle is pulled out, the glass fiber bundle is not perfectly straight, and distortions such as twisting and curving remain, resulting in uneven adhesion of the thermoplastic resin and variations in the quality of the FRTP. It causes the occurrence of Such strain occurs when a glass fiber bundle is pulled out from a cylindrical wound body in the longitudinal direction of the cylindrical body. This is thought to be due to this, and attempts have been made to prevent the twisting caused by the above-mentioned drawing process by supporting the cylindrical wound body rotatably around the axis of the cylinder and performing the drawing process. , completely remove residual strain and create homogeneous FRTP
is difficult to obtain.
本発明は、ガラス繊維束を引出すときの毛羽立
ち、切断を生ずることなく、均質なFRTPが得ら
れるような、熱可塑性樹脂を被着したFRTP用の
成型材製造方法を提供することを目的としてい
る。 An object of the present invention is to provide a method for manufacturing a molding material for FRTP coated with a thermoplastic resin, which allows a homogeneous FRTP to be obtained without fuzzing or cutting when pulling out a glass fiber bundle. .
上記目的を達成するために、本発明において
は、ブツシングから引出された多数のガラス繊維
に被膜形成剤を含まない集束剤を附与集束してガ
ラス繊維束とする工程、ガラス繊維束を回転する
軸に沿つて往復動する案内部材に係合せしめて上
記軸に巻取つて円筒状回巻体とする工程、上記回
巻体を乾燥する工程、回巻体からガラス繊維束を
引出す工程、引出されたガラス繊維束に被膜形成
剤を附与する工程、このガラス繊維束を走行状態
において乾燥し、ついで熱可塑性樹脂を被着させ
る工程とにより成型材料を製造する。
In order to achieve the above object, the present invention includes a step of applying a sizing agent that does not contain a film forming agent to a large number of glass fibers drawn from a bushing and converging them into a glass fiber bundle, and a step of rotating the glass fiber bundle. a step of engaging a guide member that reciprocates along the shaft and winding it around the shaft to form a cylindrical wound body; a step of drying the wound body; a step of drawing out the glass fiber bundle from the wound body; a step of drawing out the glass fiber bundle from the wound body; A molding material is produced by applying a film-forming agent to a glass fiber bundle, drying the glass fiber bundle while running, and then applying a thermoplastic resin.
又はガラス繊維束として乾燥状態における
1000m当りの重量が300〜10000gr望ましくは500
〜5000grのものを使用し、又被膜形成剤は有機溶
剤溶液として附与する。 or in the dry state as glass fiber bundles
Weight per 1000m is 300~10000gr preferably 500gr
~5000 gr is used, and the film forming agent is applied as an organic solvent solution.
次に本発明を更に具体的に説明する。 Next, the present invention will be explained in more detail.
ブツシングから引出した多数のガラス繊維に集
剤を附与し、集束部材で集束する。 A binding agent is applied to a large number of glass fibers pulled out from the bushing, and the fibers are bundled by a binding member.
ガラス繊維としては直径３〜23μ、望ましくは
９〜16μのものが好適に使用できる。 Glass fibers having a diameter of 3 to 23 microns, preferably 9 to 16 microns can be suitably used.
ガラス繊維束を製造する際、或は回巻体からガ
ラス繊維束を引出して使用する際の毛羽立ち、糸
切れを防止して作業性を良好ならしめ、又ガラス
繊維と熱可塑性樹脂の馴染みを良好ならしめて
FRTPの強度を向上させる為、集束剤としてカツ
プリン剤、潤滑剤を含み被膜形成剤を含まないも
のを使用する。 Prevents fuzzing and thread breakage when manufacturing glass fiber bundles or when pulling out glass fiber bundles from rolled bodies to improve workability, and improves compatibility between glass fibers and thermoplastic resin. Get used to it
In order to improve the strength of FRTP, we use a sizing agent that contains a cutoff agent and lubricant but does not contain a film forming agent.
カツプリング剤としてはアミノシラン、エポキ
シシラン、ビニルシランのようなシランカツプリ
ング剤或いはチタン系カツプリング剤、特にシラ
ンカツプリング剤が好適に用いられる。 As the coupling agent, silane coupling agents such as aminosilane, epoxysilane, and vinylsilane or titanium-based coupling agents, particularly silane coupling agents, are preferably used.
潤滑剤としては、脂肪酸アミド、非イオン系界
面活性剤等を用いるのが好ましい。又集束剤中の
カツプリング剤、潤滑剤の濃度は、夫々0.05〜
0.8wt％，0.05〜0.5wt％とし、集束剤を固型分と
して0.05〜0.5wt％附与するのが適当である。集
束剤を附与したガラス繊維は、常法に従つて、集
束してガラス繊維束となし、案内部材に導く。 As the lubricant, it is preferable to use a fatty acid amide, a nonionic surfactant, or the like. Also, the concentration of coupling agent and lubricant in the sizing agent is 0.05 to 0.05, respectively.
0.8 wt%, 0.05 to 0.5 wt%, and it is appropriate to add 0.05 to 0.5 wt% of the sizing agent as a solid content. The glass fibers to which a sizing agent has been added are bundled into a glass fiber bundle according to a conventional method and guided to a guide member.
案内部材を回転する軸に沿つて往復動させ、ガ
ラス繊維束を円筒状に巻取つて回巻体とし、つい
で常法に従つて乾燥した後、この回巻体からガラ
ス繊維束を引出して次の工程に送る。 The guide member is reciprocated along the rotating shaft, and the glass fiber bundle is wound into a cylindrical shape to form a rolled body. After drying according to a conventional method, the glass fiber bundle is pulled out from this rolled body and then Send it to the next process.
ついで引出されたガラス繊維束に被膜形成剤を
附与する。被膜形成剤としてはアクリル樹脂、ウ
レタン樹脂、AS樹脂等が適当である。被膜形成
剤の附与方法に特に限定はないが、被膜形成剤を
0.1〜20wt％、好ましくは0.5〜10wt％含む溶液を
使用し、この溶液をガラス繊維束にスプレーし、
或はこの溶液中をガラス繊維束を走行させ、要す
れば、スクイズして被膜形成剤を附与するのが適
当である。 A film forming agent is then applied to the drawn glass fiber bundle. Suitable film forming agents include acrylic resins, urethane resins, and AS resins. There are no particular limitations on the method of applying the film-forming agent, but
Use a solution containing 0.1-20wt%, preferably 0.5-10wt%, spray this solution on the glass fiber bundle,
Alternatively, it is appropriate to run a glass fiber bundle through this solution and, if necessary, squeeze it to apply a film-forming agent.
なお、被膜形成剤は有機溶媒に溶解した状態で
附与するのが望ましく、水溶液を使用した場合の
ように乾燥を行なわず、そのまま熱可塑性樹脂を
附与することができ、熱可塑性樹脂の馴染みを一
層良好ならしめることが判明した。 It is preferable to apply the film-forming agent in a state dissolved in an organic solvent, and the thermoplastic resin can be applied as it is without drying as is the case when an aqueous solution is used. It has been found that this makes it even better.
有機溶剤としては、ジビニルベンゼン、スチレ
ン、メタクリル酸メチル、アクリル酸メチル、ア
クリロニトリルのようなラジカル重合可能な単量
体を用いるのが特に好ましい。この際、重合触
媒、例えば、ベンゾイルバーオキサイド、ラウロ
イルパーオキサイド、ジクミルパーオキサイドの
ような過酸化物触媒を添加するのが適当である。 As the organic solvent, it is particularly preferable to use radically polymerizable monomers such as divinylbenzene, styrene, methyl methacrylate, methyl acrylate, and acrylonitrile. At this time, it is appropriate to add a polymerization catalyst, for example, a peroxide catalyst such as benzoyl peroxide, lauroyl peroxide, dicumyl peroxide.
被膜形成剤の附与量は固型分としてガラス繊維
の0.05〜5wt％、望ましくは0.1〜1wt％とするの
が適当である。被膜形成剤を水溶液として附与し
た場合には、このガラス繊維束を走行状態におい
て乾燥する。 The amount of film forming agent added is suitably 0.05 to 5 wt%, preferably 0.1 to 1 wt% of the glass fiber as a solid content. When the film-forming agent is applied as an aqueous solution, the glass fiber bundle is dried while running.
乾燥は、100〜300℃望ましくは120〜200℃に保
たれたオーブン中を５〜200m／min望ましくは
10〜100m／min程度の速さで繊維束を走行せし
めつつ行なうのが好ましいが、高周波加熱等によ
つて乾燥することもできる。 Drying is preferably carried out in an oven maintained at 100-300°C, preferably 120-200°C, at 5-200 m/min.
It is preferable to dry the fiber bundle while running it at a speed of about 10 to 100 m/min, but it is also possible to dry by high frequency heating or the like.
ついで、ガラス繊維束に熱可塑性樹脂を被着さ
せる。 The glass fiber bundle is then coated with a thermoplastic resin.
被着の方法に特に限定はないが、熱可塑性樹脂
溶融物中をガラス繊維束を走行させて該溶融物を
繊維束表面に被着し、過剰の樹脂をスクイズする
ことによつて好適に被着を行なうことができる。
樹脂被着量は、樹脂の種類、上記方法で製造され
た本成型材料の用途に応じて定められるが、ガラ
ス繊維含有量が20〜80wt％望ましくは30〜60wt
％となるよう定めるのが適当である。 Although there is no particular limitation on the method of application, it is preferable to run the glass fiber bundle through a thermoplastic resin melt, apply the melt to the surface of the fiber bundle, and squeeze out excess resin. can be dressed.
The amount of resin deposited is determined depending on the type of resin and the use of the molding material produced by the above method, but the glass fiber content is preferably 20 to 80 wt%, preferably 30 to 60 wt.
It is appropriate to set it as %.
本発明の作用に就いては充分明らかでないが、
およそ次のように考えられる。ブツシングから引
出された多数のガラス繊維に集束剤を附与して集
束し、ガラス繊維束とすると、該繊維束内のガラ
ス繊維同志は互いに並行に一体的に強く密着せし
められる。
Although the function of the present invention is not fully clear,
It can be thought of as follows. When a large number of glass fibers drawn from a bushing are added with a sizing agent and converged to form a glass fiber bundle, the glass fibers in the fiber bundle are tightly adhered to each other in parallel and integrally.
このガラス繊維束を回転する軸に沿つて往復動
する案内部材に係合せしめて上記軸に巻取つて円
筒状回巻体とすると、ガラス繊維同志が互に密着
した状態で巻取られる。 When this glass fiber bundle is engaged with a guide member that reciprocates along a rotating shaft and wound around the shaft to form a cylindrical wound body, the glass fibers are wound in close contact with each other.
この状態で回巻体を従来技術のように乾燥する
と、水分の蒸発に伴つて集束剤が表面に移行する
マイグレーシヨン現象が発生する。 If the wound body is dried in this state as in the prior art, a migration phenomenon occurs in which the sizing agent migrates to the surface as the moisture evaporates.
マイグレーシヨンにより、マクロ的には回巻体
の表面に近い部分程集束剤の含有量が多くなる。 Due to migration, from a macroscopic perspective, the content of the sizing agent increases in a portion closer to the surface of the wound body.
又、水分は毛細管現象等により移動するが回巻
体中の繊維の分布は均一でないため、水分の移動
し易い通路と、水分の移動し難い部分が、回巻体
中に不規則に混在するため、この水分と共に移動
する集束の分布がミクロ的に不均一となる。 In addition, although moisture moves due to capillary action, the distribution of fibers in the rolled body is not uniform, so passages where moisture can easily move and areas where moisture cannot move are mixed irregularly in the rolled body. Therefore, the distribution of the focus that moves together with this moisture becomes microscopically non-uniform.
このような状態でガラス繊維束は弯曲した形状
で円筒状に回巻され、互に密着した状態で乾燥さ
れ、集束剤で互いに固着する。 In this state, the glass fiber bundles are wound into a cylindrical shape in a curved shape, dried in a close contact with each other, and fixed to each other with a sizing agent.
このため、回巻体から引出されたガラス繊維束
は長さ方向に沿つて集束剤の含有量はバラツキを
有し、又弯曲した形状のまま集束剤が乾燥固化し
ているため、撚れ、弯曲が残存し、又引出しに際
し局部的に大きい応力を受け、又集束剤の多い部
分は剥れ難いため、部分的な繊維の切断が発生
し、又弯曲した部分がガイド等で擦られるため、
毛羽立ちを生ずるものと考えられる。 For this reason, the content of the sizing agent in the glass fiber bundle drawn from the wound body varies along the length direction, and the sizing agent dries and solidifies while remaining in a curved shape, resulting in twisting, Curves remain, and when the fibers are pulled out, they are subjected to large local stresses, and areas with a large amount of sizing agent are difficult to peel off, resulting in local fiber breakage, and curved areas are rubbed by guides, etc.
It is thought that it causes fluff.
集束剤、固化に伴なう、このような作用は集束
剤中に含まれる被膜形成剤に主として起因するも
のであり、被膜形成剤を含まない集束剤を使用す
ることにより、毛羽立ち、撚れ、弯曲の残存繊維
の切断の発生を大巾に減少することができるもの
と考えられる。 Such effects associated with the sizing agent and solidification are mainly caused by the film-forming agent contained in the sizing agent, and by using a sizing agent that does not contain a film-forming agent, fluffing, twisting, It is believed that the occurrence of breakage of residual fibers in curves can be greatly reduced.
又被膜形成剤を有機溶媒溶液として附与するこ
とにより、その後の乾燥工程を不要とし、熱可塑
性樹脂との馴染みを良好ならしめる。 Furthermore, by applying the film-forming agent as an organic solvent solution, a subsequent drying step is not necessary and the film-forming agent is better compatible with the thermoplastic resin.
ブツシングから引出した太さ13μのガラス繊維
にアミノシランを0.6wt％、潤滑剤を0.5wt％を含
む集束剤を固型分として0.1wt％附与して3200本
集束しガラス繊維束とした。
0.1 wt% of a sizing agent containing 0.6 wt% of aminosilane and 0.5 wt% of lubricant was added to the glass fibers with a thickness of 13μ pulled out from the bushing, and 3200 fibers were bundled to form a glass fiber bundle.
このガラス繊維束を内径16cm、外径26cm、高さ
26cm円筒状に回巻し、常法に従い乾燥した。 This glass fiber bundle has an inner diameter of 16 cm, an outer diameter of 26 cm, and a height of
It was rolled into a 26 cm cylinder and dried according to a conventional method.
ついで水溶性ナイロンを10wt％含むアルコー
ル溶液中を通過させナイロン樹脂を固型分として
0.5wt％附与し、200℃に保たれたオーブン中を通
過させて乾燥した。 Then, it is passed through an alcohol solution containing 10wt% of water-soluble nylon to convert the nylon resin into a solid content.
It was added 0.5wt% and dried by passing through an oven maintained at 200°C.
このようにして得られたガラス繊維束にナイロ
ン６をガラス繊維に対し150wt％被着させ、１cm
に切断し、成型材料とした。 The glass fiber bundle thus obtained was coated with nylon 6 at 150 wt% based on the glass fiber, and 1 cm
It was cut into pieces and used as a molding material.
成型材料製造中に毛羽立ち、糸切れを生ずるこ
とがなかつた。又この成型材料を使用し
ASTMD−256号の試験片を製造し、測定した衝
撃強度は35Kg−cm／cmであつた。 No fluffing or thread breakage occurred during the production of the molding material. Also using this molding material
A test piece of ASTM D-256 was manufactured and the measured impact strength was 35 kg-cm/cm.
実施例の集束剤に代え、アミノシランを0.6wt
％、潤滑剤を0.5wt％、水溶性ナイロンを5wt％
含む集束剤を使用して得られた実施例と同一の回
巻体を水分0.1wt％となる迄乾燥し、引出したガ
ラス繊維束にそのまま樹脂を附与し、実施例と同
一の実験を行なつた。
Instead of the sizing agent in the example, use 0.6wt of aminosilane.
%, lubricant 0.5wt%, water-soluble nylon 5wt%
The same rolled body as in the example obtained using a sizing agent containing the sizing agent was dried to a moisture content of 0.1 wt%, the resin was added to the drawn glass fiber bundle as it was, and the same experiment as in the example was performed. Summer.
毛立ちが屡々発生し、又得られた試験片の衝撃
強度は30Kg−cm／cmであつた。 Fuzzing frequently occurred, and the impact strength of the test piece obtained was 30 kg-cm/cm.
〔発明の効果〕
成型材料製造時の毛羽立ち、糸切れの発生がな
く、均質な成型材料が得られ、この成型材料を使
用し、高強度のFRTPが得られる。[Effects of the Invention] A homogeneous molding material is obtained without fluffing or thread breakage during production of the molding material, and a high-strength FRTP can be obtained using this molding material.
Claims (1)
に被膜形成剤を含まない集束剤を附与集束してガ
ラス繊維束とする工程、ガラス繊維束を回転する
軸に沿つて往復動する案内部材に係合せしめて上
記軸に巻取つて円筒状回巻体とする工程、上記回
巻体を乾燥する工程、回巻体からガラス繊維束を
引出す工程、引出されたガラス繊維束に被膜形成
剤を附与する工程、このガラス繊維束に熱可塑性
樹脂を被着させる工程とを含む成型材料製造方
法。 ２ ガラス繊維束の乾燥状態における重量は300
〜10000gr／1000mである請求項１記載の成型材
料の製造方法。 ３ 被膜形成剤は有機溶剤の溶液として附与する
請求項１又は２記載の成型材料製造方法。[Claims] 1. A step of applying a sizing agent that does not contain a film forming agent to a large number of glass fibers drawn from a bushing to form a glass fiber bundle, and reciprocating the glass fiber bundle along a rotating axis. A step of engaging the guide member to be wound around the shaft to form a cylindrical wound body, a step of drying the wound body, a step of drawing out the glass fiber bundle from the wound body, a coating on the drawn out glass fiber bundle. A method for producing a molding material, comprising the steps of applying a forming agent and applying a thermoplastic resin to the glass fiber bundle. 2 The dry weight of the glass fiber bundle is 300
2. The method for producing a molding material according to claim 1, wherein the molding material is 10000gr/1000m. 3. The method for producing a molding material according to claim 1 or 2, wherein the film forming agent is applied as a solution of an organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1281783A JPH03146444A (en) | 1989-10-31 | 1989-10-31 | Production of molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1281783A JPH03146444A (en) | 1989-10-31 | 1989-10-31 | Production of molding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03146444A JPH03146444A (en) | 1991-06-21 |
| JPH0530785B2 true JPH0530785B2 (en) | 1993-05-10 |
Family
ID=17643914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1281783A Granted JPH03146444A (en) | 1989-10-31 | 1989-10-31 | Production of molding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03146444A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4290927B2 (en) * | 2002-06-04 | 2009-07-08 | 日本板硝子株式会社 | Bundling agent, glass fiber, flaky glass and thermoplastic resin composition |
| JP6345404B2 (en) * | 2013-10-15 | 2018-06-20 | ユニチカ株式会社 | Glass fiber sizing agent, glass fiber and glass fiber product coated with the same, and method for producing glass cloth. |
-
1989
- 1989-10-31 JP JP1281783A patent/JPH03146444A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03146444A (en) | 1991-06-21 |
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