JPH0957790A - Material for injection welding - Google Patents
Material for injection weldingInfo
- Publication number
- JPH0957790A JPH0957790A JP7217759A JP21775995A JPH0957790A JP H0957790 A JPH0957790 A JP H0957790A JP 7217759 A JP7217759 A JP 7217759A JP 21775995 A JP21775995 A JP 21775995A JP H0957790 A JPH0957790 A JP H0957790A
- Authority
- JP
- Japan
- Prior art keywords
- polyamide
- weight
- parts
- pts
- resin
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、エアーインテークマニ
ホールド、ソレノイドバルブやアンチロックブレーキ用
のセンサーとして適した射出溶着用材料に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection welding material suitable as a sensor for an air intake manifold, a solenoid valve or an antilock brake.
【０００２】すなわち、射出溶着用材料は、エアーイン
テークマニホールドやシステム配管などの中空部品を射
出成形工程のみで製造するために、２分割で成形した
後、別のキャビティー内で接合する際に利用される。ま
た、電気電子部品を水、熱および種々のガスなどの環境
から保護するために、ソレノイドバルブやアンチロック
ブレーキ用のセンサーを封止する際に利用されている。That is, the injection welding material is used when the hollow parts such as the air intake manifold and the system piping are manufactured only by the injection molding process, and are molded in two parts and then joined in another cavity. To be done. In addition, it is used for sealing sensors for solenoid valves and antilock brakes in order to protect electric and electronic parts from the environment such as water, heat and various gases.
【０００３】[0003]
【従来の技術およびその問題点】ポリアミド樹脂は、機
械的特性および耐熱性、耐薬品性に優れたエンジニアリ
ングプラスチックとして広い用途分野で使用されてい
る。また、ポリアミド樹脂に無機充填材を配合すること
によりさらに強度が向上するため、無機充填材で強化し
た状態でも広く使用されている。2. Description of the Related Art Polyamide resins have been used in a wide range of fields as engineering plastics having excellent mechanical properties, heat resistance and chemical resistance. Further, since the strength is further improved by blending the polyamide resin with the inorganic filler, it is widely used even in the state of being reinforced with the inorganic filler.
【０００４】しかしながら、ポリアミド６、ポリアミド
６６のような比較的アミド基濃度の高いポリアミドは塩
化カルシウムや塩化亜鉛などの金属塩によりストレスク
ラックが発生することがあり、自動車のアンダーフード
部品への利用が制限されていた。However, polyamides having a relatively high amide group concentration such as polyamide 6 and polyamide 66 may cause stress cracks due to metal salts such as calcium chloride and zinc chloride, and are suitable for use as underhood parts for automobiles. It was limited.
【０００５】アミド基濃度の高いポリアミドの耐塩化カ
ルシウム性を改善する方法として、（ＣＨ2 ／ＮＨＣ
Ｏ）＝６〜１１の脂肪族ポリアミド８０〜２０重量部を
ポリアミド６６ ２０〜８０重量部に添加する方法（特
公昭６１−４０２６２公報、特公昭６１−４０２６３公
報）が知られている。As a method of improving the calcium chloride resistance of polyamide having a high amide group concentration, (CH 2 / NHC
O) = 6 to 11 aliphatic polyamide 80 to 20 parts by weight is added to polyamide 66 20 to 80 parts by weight (Japanese Patent Publication Nos. 61-40262 and 61-40263).
【０００６】このポリアミド樹脂組成物を射出溶着用材
料として使用する場合、ポリアミド６６の割合が高いと
きには耐熱性は良いが射出溶着性で十分でなく、ポリア
ミド６６の割合が低いときには射出溶着性は良いが耐熱
性の点で高温での使用に適していない。When this polyamide resin composition is used as a material for injection welding, when the proportion of polyamide 66 is high, the heat resistance is good, but the injection weldability is not sufficient, and when the proportion of polyamide 66 is low, the injection weldability is good. Is not suitable for use at high temperature because of its heat resistance.
【０００７】[0007]
【発明が解決しようとする課題】本発明者は、耐塩化カ
ルシウム性と溶着性、耐熱性との調和のとれた射出溶着
材料を開発することを目的に鋭意研究した結果、本発明
に到達した。DISCLOSURE OF INVENTION Problems to be Solved by the Invention The present inventors arrived at the present invention as a result of earnest research for the purpose of developing an injection welding material in which calcium chloride resistance, weldability and heat resistance are well balanced. .
【０００８】[0008]
【課題を解決するための手段】本発明は、（Ａ）（Ａ
１）ポリアミド６６樹脂５０〜８５重量部、（Ａ２）ポ
リアミド１２樹脂１０〜３０重量部、（Ａ３）ポリアミ
ド６成分３０〜９０重量％とポリアミド６６成分７０〜
１０重量％とからなるポリアミド共重合体５〜３５重量
部からなるポリアミド樹脂混合物１００重量部、および
前記ポリアミド樹脂混合物に対して（Ｂ）無機充填材を
５〜１５０重量部の割合で配合することを特徴とする射
出溶着用材料に関する。The present invention provides (A) (A
1) Polyamide 66 resin 50 to 85 parts by weight, (A2) Polyamide 12 resin 10 to 30 parts by weight, (A3) Polyamide 6 component 30 to 90% by weight and Polyamide 66 component 70 to
100 parts by weight of a polyamide resin mixture composed of 5 to 35 parts by weight of a polyamide copolymer composed of 10% by weight, and 5 to 150 parts by weight of the inorganic filler (B) with respect to the polyamide resin mixture. And a material for injection welding.
【０００９】本発明において、ポリアミド６６とはヘキ
サメチレンジアミンとアジピン酸の重縮合体，ポリアミ
ド１２とはポリドデカンアミド、ポリアミド６とはポリ
カプラミドである。In the present invention, polyamide 66 is a polycondensate of hexamethylenediamine and adipic acid, polyamide 12 is polydodecane amide, and polyamide 6 is polycapramide.
【００１０】本発明のポリアミド１２樹脂の配合割合
は、ポリアミド樹脂混合物１００重量部に対して１０〜
３０重量部、好ましくは１０〜２５重量部である。The blending ratio of the polyamide 12 resin of the present invention is 10 to 100 parts by weight of the polyamide resin mixture.
It is 30 parts by weight, preferably 10 to 25 parts by weight.
【００１１】ポリアミド１２樹脂の割合が１０重量部未
満では耐塩化カルシウム性の向上という点で十分ではな
く、また、３０重量部を超えると耐熱性が低下するので
好ましくない。When the proportion of the polyamide 12 resin is less than 10 parts by weight, the calcium chloride resistance is not sufficiently improved, and when it exceeds 30 parts by weight, the heat resistance is deteriorated, which is not preferable.
【００１２】本発明のポリアミド共重合体を構成するポ
リアミド６成分とポリアミド６６成分との割合は、ポリ
アミド６成分／ポリアミド６６成分＝３０〜９０重量％
／７０〜１０重量％であるのが好ましい。The ratio of the polyamide 6 component and the polyamide 66 component constituting the polyamide copolymer of the present invention is as follows: polyamide 6 component / polyamide 66 component = 30 to 90% by weight
It is preferably / 70 to 10% by weight.
【００１３】ポリアミド共重合体のポリアミド６成分の
割合が３０重量％未満もしくは９０重量％を超えると射
出溶着性が低下するので好ましくない。If the proportion of the polyamide 6 component in the polyamide copolymer is less than 30% by weight or more than 90% by weight, the injection weldability is deteriorated, which is not preferable.
【００１４】本発明のポリアミド共重合体の配合割合
は、ポリアミド樹脂混合物１００重量部に対して５〜３
０重量部、好ましくは１０〜２５重量部である。The blending ratio of the polyamide copolymer of the present invention is 5 to 3 with respect to 100 parts by weight of the polyamide resin mixture.
It is 0 part by weight, preferably 10 to 25 parts by weight.
【００１５】ポリアミド共重合体の割合が１０重量部未
満では射出溶着性が低下し、また、３０重量部を超える
と耐熱性が低下するので好ましくない。If the proportion of the polyamide copolymer is less than 10 parts by weight, the injection weldability is lowered, and if it exceeds 30 parts by weight, the heat resistance is lowered, which is not preferable.
【００１６】本発明に使用する無機充填材として、具体
例としては、炭酸カルシウム、ケイ酸カルシウム（ワラ
ストナイト）、タルク、カオリン、マイカ、酸化チタ
ン、アルミナ、シリカ、フェライト、炭酸などの粉末
や、ガラス繊維、炭素繊維、金属繊維、ホウ素繊維、チ
タン酸カリウム繊維、セラミック繊維などの繊維を挙げ
ることができる。無機フィラーは、単独でまたは２種以
上を組合わせて用いてもよい。Specific examples of the inorganic filler used in the present invention include powders of calcium carbonate, calcium silicate (wollastonite), talc, kaolin, mica, titanium oxide, alumina, silica, ferrite and carbonic acid. Fibers such as glass fiber, carbon fiber, metal fiber, boron fiber, potassium titanate fiber, and ceramic fiber can be used. The inorganic fillers may be used alone or in combination of two or more.
【００１７】無機充填材は、ポリアミド樹脂混合物１０
０重量部当たり５〜１５０重量部、好ましくは２５〜５
５重量部の範囲で添加される。５重量部未満では機械的
強度の向上という点で効果は現れず、１５０重量部を超
えて添加すると成形品の表面性が悪化するので好ましく
ない。The inorganic filler is a polyamide resin mixture 10
5 to 150 parts by weight per 0 parts by weight, preferably 25 to 5 parts
It is added in the range of 5 parts by weight. If it is less than 5 parts by weight, no effect is exhibited in terms of improving mechanical strength, and if it is added in excess of 150 parts by weight, the surface property of the molded product is deteriorated, which is not preferable.
【００１８】本発明の射出溶着用材料は、前記ポリアミ
ド共重合体と無機充填材とを溶融混練することによって
容易に調製することができる。The injection welding material of the present invention can be easily prepared by melt-kneading the polyamide copolymer and the inorganic filler.
【００１９】この発明の射出溶着用材料は、要求される
特性に応じて他の添加剤、例えば耐熱剤，紫外線吸収剤
を含む耐候剤，難燃剤，帯電防止剤，滑剤，可塑剤，核
剤，発泡剤，着色剤，安定剤，カップリング剤などを含
有することができる。The injection welding material of the present invention comprises other additives, such as heat-resistant agents, weather-resistant agents containing ultraviolet absorbers, flame retardants, antistatic agents, lubricants, plasticizers, nucleating agents, depending on the properties required. , A foaming agent, a coloring agent, a stabilizer, a coupling agent and the like can be contained.
【００２０】[0020]
【評価法】各ポリアミド樹脂と無機充填材を溶融混練
し、以下の方法で評価を行った。[Evaluation method] Each polyamide resin and the inorganic filler were melt-kneaded and evaluated by the following methods.
【００２１】射出溶着用材料の射出溶着性は、以下の手
順で測定した。テストピースの形状は図１に示した通り
で、全体としてはＡＳＴＭ Ｄ６３８の１号片形状であ
る。部品１と部品２の境界面が、射出溶着時に溶融接着
されることにより、一つのテストピースが得られる。The injection weldability of the material for injection welding was measured by the following procedure. The shape of the test piece is as shown in FIG. 1, and it is the No. 1 piece shape of ASTM D638 as a whole. One test piece is obtained by melting and bonding the boundary surface between the component 1 and the component 2 during injection welding.
【００２２】テストピースは図２の作成手順に従って作
成した。先ず、ＡＳＴＭ Ｄ６３８の１号片をつくる金
型に図１の部品２の形状の金属片をインサートして（図
２（１））、部品１の成形を行った（図２（２）、
（３））。部品１を十分に冷却した後金型内にインサー
トして（図２（４））、部品２の部分を成形することに
より（図２（５））、接合したテストピースを得た（図
２（６））。このテストピースの引張り強度をＡＳＴＭ
Ｄ６３８に準じて、境界面から剥離するか境界面以外
の部分で破壊する（基材破壊）までの最大引張り強度を
測定し、射出溶着強度として評価を行った。The test piece was prepared according to the procedure shown in FIG. First, a metal piece having the shape of the component 2 of FIG. 1 was inserted into a mold for making a No. 1 piece of ASTM D638 (FIG. 2 (1)) to mold the component 1 (FIG. 2 (2),
(3)). After the component 1 is sufficiently cooled, it is inserted into the mold (FIG. 2 (4)) and the part of the component 2 is molded (FIG. 2 (5)) to obtain a joined test piece (FIG. 2 (4)). (6)). The tensile strength of this test piece is
According to D638, the maximum tensile strength until peeling from the boundary surface or breaking at a portion other than the boundary surface (breakage of the base material) was measured and evaluated as the injection welding strength.
【００２３】射出溶着用材料の耐熱性は、ＡＳＴＭ Ｄ
６４８に準じて測定した荷重たわみ温度で評価した。The heat resistance of injection welding materials is determined by ASTM D
The deflection temperature under load measured according to 648 was evaluated.
【００２４】射出溶着用材料の耐塩化カルシウム性は、
図３の示す片持ち曲げ方式にて評価した。まず、テスト
ピース（１２７×１２．７×３．２ｍｍ）は大気中（２
３℃６５％ＲＨ）での平衡水分に調湿した。次に、０、
７５、１１０ｋｇｆ／ｃｍ2の３点の応力条件におい
て、塩化カルシウム飽和水溶液を浸したガーゼを最大応
力部に貼り付けた。その後、治具ごと１００℃のオーブ
ン中に１時間放置した。取出した後目視にてテストピー
ス表面のクラックを確認した。それを１０サイクル繰り
返した。The calcium chloride resistance of the material for injection welding is
It was evaluated by the cantilever bending method shown in FIG. First, the test piece (127 x 12.7 x 3.2 mm) was placed in the atmosphere (2
The humidity was adjusted to equilibrium moisture at 3 ° C. and 65% RH. Then 0,
Under three stress conditions of 75 and 110 kgf / cm 2 , gauze soaked with a saturated aqueous solution of calcium chloride was attached to the maximum stress portion. Then, the jig was left in an oven at 100 ° C. for 1 hour. After taking out, cracks on the surface of the test piece were visually confirmed. It was repeated 10 cycles.
【００２５】実施例１〜３，比較例１〜１１ ポリアミド６６樹脂、ポリアミド１２樹脂、ポリアミド
６／６６共重合体からなるポリアミド樹脂混合物１００
重量部と、ガラス繊維４０重量部を溶融混練して、射出
溶着用材料を得た。これらの材料の組成および評価結果
を表１に示す。Examples 1 to 3, Comparative Examples 1 to 11 Polyamide resin mixture 100 consisting of polyamide 66 resin, polyamide 12 resin and polyamide 6/66 copolymer
By weight, 40 parts by weight of glass fiber were melt-kneaded to obtain a material for injection welding. Table 1 shows the compositions and evaluation results of these materials.
【００２６】実施例４〜６，比較例１２〜１５ ポリアミド６６樹脂、ポリアミド１２樹脂、ポリアミド
６／６６共重合体からなるポリアミド樹脂混合物１００
重量部と、カオリン６０重量部を溶融混練して、射出溶
着用材料を得た。これらの材料の組成および評価結果を
表１に示す。Examples 4 to 6 and Comparative Examples 12 to 15 Polyamide resin mixture 100 comprising polyamide 66 resin, polyamide 12 resin and polyamide 6/66 copolymer 100
Parts by weight and 60 parts by weight of kaolin were melt-kneaded to obtain a material for injection welding. Table 1 shows the compositions and evaluation results of these materials.
【００２７】[0027]
【表１】 [Table 1]
【００２８】[0028]
【発明の効果】本発明において、ポリアミド６６樹脂、
ポリアミド１２樹脂、ポリアミド６／６６共重合体から
なるポリアミド樹脂混合物に無機充填材を配合すること
により、射出溶着や封止成形に適した射出溶着用材料が
得られる。In the present invention, polyamide 66 resin,
By blending a polyamide resin mixture composed of polyamide 12 resin and polyamide 6/66 copolymer with an inorganic filler, a material for injection welding suitable for injection welding and sealing molding can be obtained.
【図面の簡単な説明】[Brief description of drawings]
【図１】射出溶着性評価用テストピースの形状を表すも
のである。FIG. 1 shows the shape of a test piece for evaluating injection weldability.
【図２】射出溶着性評価用テストピースの作成手順を表
すものである。FIG. 2 shows a procedure for producing a test piece for injection weldability evaluation.
【図３】耐塩化カルシウム性測定用治具の形状および測
定方法を表すものである。FIG. 3 shows a shape and a measuring method of a jig for measuring calcium chloride resistance.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 77:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display area // B29K 77:00
Claims (1)
〜８５重量部、（Ａ２）ポリアミド１２樹脂１０〜３０
重量部、（Ａ３）ポリアミド６成分３０〜９０重量％と
ポリアミド６６成分７０〜１０重量％とからなるポリア
ミド共重合体５〜３５重量部からなるポリアミド樹脂混
合物１００重量部、および前記ポリアミド樹脂混合物に
対して（Ｂ）無機充填材を５〜１５０重量部の割合で配
合することを特徴とする射出溶着用材料。1. (A) (A1) polyamide 66 resin 50
~ 85 parts by weight, (A2) polyamide 12 resin 10-30
Parts by weight, 100 parts by weight of a polyamide resin mixture consisting of 5 to 35 parts by weight of a polyamide copolymer consisting of 30 to 90% by weight of (A3) polyamide 6 component and 70 to 10% by weight of polyamide 66 component, and said polyamide resin mixture. On the other hand, (B) an inorganic filler is blended in a proportion of 5 to 150 parts by weight, which is an injection welding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21775995A JP3191638B2 (en) | 1995-08-25 | 1995-08-25 | Injection welding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21775995A JP3191638B2 (en) | 1995-08-25 | 1995-08-25 | Injection welding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0957790A true JPH0957790A (en) | 1997-03-04 |
| JP3191638B2 JP3191638B2 (en) | 2001-07-23 |
Family
ID=16709301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21775995A Expired - Fee Related JP3191638B2 (en) | 1995-08-25 | 1995-08-25 | Injection welding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3191638B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999045071A1 (en) * | 1998-03-06 | 1999-09-10 | E.I. Du Pont De Nemours And Company | Polyamide compositions for friction-weldable molded articles |
| EP3718857A1 (en) * | 2019-04-04 | 2020-10-07 | Hyundai Mobis Co., Ltd. | Composition for worm wheel having excellent durability and wear resistance and worm wheel manufactured using the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4677934B2 (en) * | 2005-07-19 | 2011-04-27 | 日本精工株式会社 | Bearing device |
| US20200282614A1 (en) | 2016-05-30 | 2020-09-10 | Toray Industries, Inc. | Composite molded article formed from polyamide resin and method of producing same |
-
1995
- 1995-08-25 JP JP21775995A patent/JP3191638B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999045071A1 (en) * | 1998-03-06 | 1999-09-10 | E.I. Du Pont De Nemours And Company | Polyamide compositions for friction-weldable molded articles |
| EP3718857A1 (en) * | 2019-04-04 | 2020-10-07 | Hyundai Mobis Co., Ltd. | Composition for worm wheel having excellent durability and wear resistance and worm wheel manufactured using the same |
| CN111793357A (en) * | 2019-04-04 | 2020-10-20 | 现代摩比斯株式会社 | Composition for worm wheel having excellent durability and wear resistance and worm wheel manufactured using the same |
| US11454309B2 (en) | 2019-04-04 | 2022-09-27 | Hyundai Mobis Co., Ltd. | Composition for worm wheel having excellent durability with wear resistance and worm wheel prepared using the same |
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| Publication number | Publication date |
|---|---|
| JP3191638B2 (en) | 2001-07-23 |
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