JPS62201930A - Lowly water-absorptive nylon rim material - Google Patents
Lowly water-absorptive nylon rim materialInfo
- Publication number
- JPS62201930A JPS62201930A JP4440986A JP4440986A JPS62201930A JP S62201930 A JPS62201930 A JP S62201930A JP 4440986 A JP4440986 A JP 4440986A JP 4440986 A JP4440986 A JP 4440986A JP S62201930 A JPS62201930 A JP S62201930A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- nylon rim
- aspect ratio
- less
- average aspect
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 27
- 239000004677 Nylon Substances 0.000 title claims abstract description 26
- 229920001778 nylon Polymers 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000012765 fibrous filler Substances 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101100208721 Mus musculus Usp5 gene Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
Landscapes
- Polyamides (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、樹脂成形品の少量多種生産に用いられる低吸
水ナイロンＲＩＭ材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a low water absorption nylon RIM material used for the production of a wide variety of resin molded products in small quantities.
従来の技術
従来、樹脂成形品の少量多種生産には、主にウレタンＲ
ＩＭ材料、エポキシ樹脂材料などが用いられてきたが、
これらの材料は、■ ウレタンＲＩＭ材料では、耐熱性
（７０〜８０°Ｃ以下）が低く、■ エポキシ樹脂では
、衝撃特性がひくかった（アイゾツト、ノツチ付で、１
０ ｋｆ −ｃｍ ７ｃｍ以下）。このため、これらの
材料に代る材料として、ナイロンＲＩＭ材料が検討され
た。このナイロンＲＩＭ材料は、曲げ弾性率も高く、衝
撃特性（アイゾツト、ノツチ付で１０〜−ｆｆｉ／ｆｌ
ｆｆ１１以上）と熱変形温度（１８，６ｋｙ荷重、１２
０’Ｃ以上）のバランスも良好で、しかも液状で粘度も
ひくく、このため成形用型が金属でなくても良く、少量
多種生産の１つである、試作品の作製に用いられてきた
。Conventional technology Conventionally, urethane R was mainly used for the production of a wide variety of resin molded products in small quantities.
IM materials, epoxy resin materials, etc. have been used,
These materials are: ■ Urethane RIM materials have low heat resistance (70 to 80°C or less); ■ Epoxy resins have poor impact properties (Izot, notched, 1
0 kf-cm 7cm or less). For this reason, nylon RIM materials have been considered as an alternative to these materials. This nylon RIM material also has a high flexural modulus and impact properties (10 to -ffi/fl for isot and notched).
ff11 or higher) and heat distortion temperature (18.6ky load, 12
It has a good balance of temperature (0'C or higher), and is liquid and has low viscosity.For this reason, the mold for molding does not need to be made of metal, and it has been used for the production of prototypes, which is one of the types of small-lot, high-mix production.
この試作品対応ナイロンＲＩＭ成形法が実用化されるに
およびナイロンＲＩＭ材料を用いて、少量多種生産に対
応できる技術が検討されている。As this nylon RIM molding method for prototypes is put into practical use, technologies that can handle small-lot, wide-variety production using nylon RIM materials are being studied.
発明が解決しようとする問題点
しかしながら、これまでのナイロンＲＩＭ材料では、ナ
イロンＲＩＭ材料の構成成分であるボリアミド基が、水
分を吸水する性質があり、このために物性値の低下１寸
法の変化などがみられた。Problems to be Solved by the Invention However, in conventional nylon RIM materials, the polyamide group, which is a component of the nylon RIM material, has the property of absorbing water, resulting in a decrease in physical properties such as a change in dimensions, etc. was seen.
現状での吸水率は２゜０ｗｔ％（大気平衡）であり、寸
法変化率は０．１８％ になっている。このだめに。The current water absorption rate is 2°0 wt% (atmospheric equilibrium), and the dimensional change rate is 0.18%. To this no good.
ナイロンＲＩＭ材料を実際の製品として用いることが難
しく、製品化への展開が遅れているのが現状である。Currently, it is difficult to use nylon RIM materials in actual products, and development into commercial products has been delayed.
本発明は、上記問題点に鑑み、吸水率が低く、吸水によ
る寸法変化の小さいナイロンＲＩＭ材料を提供すること
である。SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a nylon RIM material that has a low water absorption rate and a small dimensional change due to water absorption.
問題点を解決するための手段
上記問題点を解決するために、ソフト成分が１０重量％
以上６０重量係以下の２液性ナイロン樹脂Ｍ主材料に、
平均アスペクト比が６以上１５以下の充てん剤と、平均
アスペクト比が１以上３以下の球状またはフレーク状ま
たは繊維状の充てん剤とを、１０重量％以下混合した低
吸水ナイロンＲＩＭ材料を発明したのである。本発明の
低吸水ナイロンＲＩＭ材料のソフト成分の重量分率は、
３ＯＮ量％から４０重量％の間が好ましく、平均アスペ
クト比が、１０＠後の充てん剤が２０重量％以上３０重
量係以下、平均アスペクト比が１以上３以下の充てん剤
が１０重量％以上、２０重量％以下であることが好まし
い。Means for solving the problem In order to solve the above problem, the soft component is 10% by weight.
Two-component nylon resin M main material with a weight ratio of more than 60%,
We have invented a low water absorption nylon RIM material in which a filler with an average aspect ratio of 6 or more and 15 or less and a spherical, flake or fibrous filler with an average aspect ratio of 1 or more and 3 or less are mixed at 10% by weight or less. be. The weight fraction of the soft component of the low water absorption nylon RIM material of the present invention is:
The amount of 3ON is preferably between 40% by weight, the average aspect ratio of the filler after 10@ is 20% by weight or more and 30% by weight or less, the filler with an average aspect ratio of 1 or more and 3 or less is 10% by weight or more, It is preferably 20% by weight or less.
作 用
本発明において、ソフト成分は、その疎水性の炭素鎖に
より吸水率を低減するという作用をし、平均アスペクト
比が６以上１５以下の充てん剤は、ナイロン樹脂のもつ
ポリアミド数を減少させて低吸水性とするのと同時に、
材料強化の作用をする。Function In the present invention, the soft component has the effect of reducing water absorption through its hydrophobic carbon chain, and the filler with an average aspect ratio of 6 to 15 reduces the number of polyamides in the nylon resin. At the same time as having low water absorption,
Acts as material reinforcement.
また、平均アスペクト比が１以上３以下の充てん剤は、
ナイロン成分を少なくし低吸水性に寄与すると共に充て
ん剤としての作用をする。In addition, fillers with an average aspect ratio of 1 or more and 3 or less are
It reduces the nylon component, contributes to low water absorption, and acts as a filler.
実施例
（実施例１）
２液タイプのナイロンＲＩＭ材料（宇部興産■製、ＵＸ
シリーズ）で、ソフト成分の重量分率を５．１０，２０
，４０，５Ｏ，５５重量％となるように調整した。これ
らを便宜上、Ｂ５． Ｂ１゜。Example (Example 1) Two-component type nylon RIM material (manufactured by Ube Industries, UX
series), the weight fraction of the soft component is 5.10, 20.
, 40,5O, 55% by weight. For convenience, these are listed as B5. B1゜.
Ｂ２０’ Ｂ４０’ Ｂ５０’ Ｂ５５とよぶ。これ
らのＢ液と、Ａ液とをそれぞれ恒温槽中に放置して溶解
させ、平均アルペクト比１０のミルドファイバー（日東
紡績■、ＴＭＦ２００）を１０重量％とともに、約１０
秒間、Ｎ２雰囲気中で、マグネットスターラーで撹拌し
た。得られた６種の混合液を１５０°Ｃに加熱した金型
に流しこみ、成形品を得た。これらの６種の試験片を２
３°Ｃ，５０ＲＨの恒湿中で吸湿させ、平衡に達するま
での時間を、従来のナイロンＲＩＭ材料（宇部興産■製
、ＵＸ−Ｂ）（第１表にＢ。で示す。）と比較して第１
表に示している。なお、前記ソフト成分としては、分子
量１０００以上６０００以下のポリオレフィン多価アル
コールを用いている。They are called B20'B40'B50' B55. These B liquid and A liquid were each left in a constant temperature bath to dissolve, and about 10% by weight of milled fiber (Nitto Boseki ■, TMF200) with an average aspect ratio of 10 was dissolved.
Stir with a magnetic stirrer for 2 seconds under N2 atmosphere. The six types of mixed liquids obtained were poured into a mold heated to 150°C to obtain a molded product. These six types of test pieces were
The time taken to absorb moisture in a constant humidity environment of 3°C and 50RH and reach equilibrium was compared with that of a conventional nylon RIM material (manufactured by Ube Industries, Ltd., UX-B) (indicated by B in Table 1). First
Shown in the table. Note that as the soft component, a polyolefin polyhydric alcohol having a molecular weight of 1,000 or more and 6,000 or less is used.
第１表
第１表より、ソフト成分の重量分率が１０重量％以上で
一度に低吸水率となり、重量分率が５５重量％では、５
０重量％とそれほどかわらない結果が得られている。Table 1 From Table 1, when the weight fraction of the soft component is 10% by weight or more, the water absorption rate becomes low at once, and when the weight fraction is 55% by weight, the water absorption rate becomes 5%.
Results were obtained that were not much different from 0% by weight.
これらの結果から、ソフト成分の重量分率が１０重量％
から、６０重量％では、吸水率が平衡に達する時間が従
来の４倍近くに延長していることがわかる。From these results, the weight fraction of the soft component is 10% by weight.
From this, it can be seen that at 60% by weight, the time for the water absorption to reach equilibrium is nearly four times longer than in the conventional case.
（実施例２）
ナイロンＲＩＭ材料として、ソフト成分が２０重量％に
調整されたＵＸ−１７（宇部興産■製）を用い、平均ア
スペクト比が１０のミルドファイバー（日東紡績■製、
ＴＭＦ２００）を、５゜１０．２０，４０，５０．５５
重量％混合して、あとは実施例１と同様に行ない、この
ときの成形品の吸水率が平衡に達する時間を、第２表に
示している。(Example 2) As a nylon RIM material, UX-17 (manufactured by Ube Industries, Ltd.) with a soft component adjusted to 20% by weight was used, and milled fiber with an average aspect ratio of 10 (manufactured by Nitto Boseki, Ltd.) was used.
TMF200), 5°10.20, 40, 50.55
After mixing by weight%, the rest was carried out in the same manner as in Example 1, and Table 2 shows the time required for the water absorption of the molded article to reach equilibrium.
第２表
第２表かられかるように、５重量％ていどの充てん剤で
はそれほど効果はなく、６５重量％では６０ｆｆｉ量チ
に比べて大きな差がないことがわかる。As can be seen from Table 2, a filler of 5% by weight is not so effective, and a filler of 65% by weight does not have a large difference compared to 60ffi.
これらから、１０重量部以上、５０重量部以下の充てん
剤が適尚であることがわかった。From these results, it was found that 10 parts by weight or more and 50 parts by weight or less of the filler is suitable.
（実施例３）
ナイロンＲＩＭ材料としで、ソフト成分が２０重量％に
調整されたＵＸ−１７（宇部興産■製）を用い、８ｍ１
ｌ＋のガラス繊維（日東紡績■製、４０９Ｃ）を粉砕し
て平均アスペクト比が３．５，１０，１２゜１５．２０
のミルドファイバーを作製し７、これらが２０重量％と
なる↓うに、実施例１と同様にして試験片を作製した。(Example 3) Using UX-17 (manufactured by Ube Industries) with a soft component adjusted to 20% by weight as a nylon RIM material, an 8 m1
The average aspect ratio is 3.5, 10, 12°15.20 by crushing l+ glass fiber (manufactured by Nitto Boseki, 409C).
A test piece was prepared in the same manner as in Example 1, except that the milled fiber was 20% by weight.
これらの試験片を便宜上、Ｆ３”５”１０”１２”１５
”２０とよぶ。これら曲げ弾性率を測定した結果を、第
３表に示す。For convenience, these test pieces are F3"5"10"12"15
The results of measuring these bending moduli are shown in Table 3.
第３表
第３表から平均アスペクト比が３以下では補強効果がな
く、２０以」二では、１５の場合とそれほどかわらない
ことがわかった。From Table 3, it was found that there is no reinforcing effect when the average aspect ratio is 3 or less, and when the average aspect ratio is 20 or more, it is not much different from the case when it is 15.
このとき、平均スペクト比１０のミルドファイバーブ２
フ３０
液に、スゾラ・イトマイカ、ガラスフレーク、ミルドフ
ァイバーなどを１０重１％追加，混合したが、平均アス
ペクト比が３より大きいものではＳ混合溶液の粘度が大
きくなり、流動性がわるく、成形するのが難しいことが
わかった。また、これはガラスピーズを用いた場合には
、ビーズの粒径の小さいものがのぞましく、６０μ以上
のものでは、混合溶液の粘度が高くなり、成形がむずか
しくなることがわかった。At this time, the milled fiberb 2 with an average spectral ratio of 10
Szola itomica, glass flakes, milled fibers, etc. were added in an amount of 10% by weight and 1% to the F30 solution, but if the average aspect ratio was greater than 3, the viscosity of the S mixed solution would increase, the fluidity would be poor, and molding would be difficult. I found it difficult to do so. In addition, when glass beads are used, it is desirable that the beads have a small particle size; if the beads are larger than 60 μm, the viscosity of the mixed solution becomes high and molding becomes difficult.
発明の効果
以上、本発明によれば、ソフト成分の重量分率を１０重
量％〜５０重量係とし、充てん剤の種類と重量分率とを
上記のように選定することによって、吸水率の平均に達
する時間が、従来の４倍になり、ナイロンの吸水率を低
減させることができ、併せて材料強化を図ることができ
る。As described above, according to the present invention, by setting the weight fraction of the soft component to 10% to 50% by weight and selecting the type and weight fraction of the filler as described above, the average water absorption rate can be increased. The time it takes to reach this point is four times longer than in the past, making it possible to reduce the water absorption rate of nylon and at the same time making it possible to strengthen the material.
Claims (2)
液性ナイロンＲＩＭ主材料に、平均アスペクト比が５以
上１５以下の充てん剤と、平均アスペクト比が１以上３
以下の球状またはフレーク状、または繊維状の充てん剤
とを、１０重量％以上５０重量％以下混合した低吸水ナ
イロンＲＩＭ材料。(1) 2 whose soft component is 10% by weight or more and 50% by weight or less
Liquid nylon RIM main material, filler with an average aspect ratio of 5 or more and 15 or less, and an average aspect ratio of 1 or more and 3
A low water absorption nylon RIM material containing 10% by weight or more and 50% by weight or less of the following spherical, flake, or fibrous filler.
ん剤は、平均粒径が６０μ以下である特許請求の範囲第
１項記載の低吸水ナイロンＲＩＭ材料。(2) The low water absorption nylon RIM material according to claim 1, wherein the spherical filler having an average aspect ratio of 1 or more and 3 or less has an average particle size of 60 μ or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4440986A JPS62201930A (en) | 1986-02-28 | 1986-02-28 | Lowly water-absorptive nylon rim material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4440986A JPS62201930A (en) | 1986-02-28 | 1986-02-28 | Lowly water-absorptive nylon rim material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62201930A true JPS62201930A (en) | 1987-09-05 |
Family
ID=12690709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4440986A Pending JPS62201930A (en) | 1986-02-28 | 1986-02-28 | Lowly water-absorptive nylon rim material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62201930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5416047A (en) * | 1990-09-07 | 1995-05-16 | Tokyo Electron Limited | Method for applying process solution to substrates |
-
1986
- 1986-02-28 JP JP4440986A patent/JPS62201930A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5416047A (en) * | 1990-09-07 | 1995-05-16 | Tokyo Electron Limited | Method for applying process solution to substrates |
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