JPS5950253B2 - Phenolic resin molding material - Google Patents
Phenolic resin molding materialInfo
- Publication number
- JPS5950253B2 JPS5950253B2 JP15965779A JP15965779A JPS5950253B2 JP S5950253 B2 JPS5950253 B2 JP S5950253B2 JP 15965779 A JP15965779 A JP 15965779A JP 15965779 A JP15965779 A JP 15965779A JP S5950253 B2 JPS5950253 B2 JP S5950253B2
- Authority
- JP
- Japan
- Prior art keywords
- molding material
- mica
- phenolic resin
- treated
- 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.)
- Expired
Links
- 239000012778 molding material Substances 0.000 title claims description 28
- 239000005011 phenolic resin Substances 0.000 title claims description 20
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 title claims description 19
- 229920001568 phenolic resin Polymers 0.000 title claims description 19
- 239000010445 mica Substances 0.000 claims description 29
- 229910052618 mica group Inorganic materials 0.000 claims description 29
- 239000003365 glass fiber Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 9
- 229910000077 silane Inorganic materials 0.000 claims description 9
- 239000012756 surface treatment agent Substances 0.000 claims description 9
- 238000011282 treatment Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 4
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 4
- 229920003987 resole Polymers 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000012783 reinforcing fiber Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】
この発明はフェノール樹脂成形材料に関するものである
。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a phenolic resin molding material.
フェノール樹脂成形材料は、熱可塑性樹脂成形材料に比
べて熱時の機械強度および物理性能に優れた成形品を製
造しうるものである。Phenol resin molding materials can produce molded products with superior mechanical strength and physical performance when heated compared to thermoplastic resin molding materials.
近年、金属材料からプラスチック材料への代替による軽
量化、製造工程の合理化およびコストダウンを図るため
に、フェノール樹脂成形材料が見直されてきている。こ
れは、フェノール樹脂成形材料が耐熱性および機械強度
に極めて富む成形品を製造しうることにもとづいている
。そして、成形品にこのような特性を付与するために、
フェノール樹脂成形材料の補強繊維として、ガラス繊維
やアスベストが単独でまたは併せて用いられているので
ある。しかしながら、上記の補強繊維のうち、アスベス
トは、公害物質であるため、安全衛生上等の観点から使
用の中止が望まれている。そのため、ガラス繊維のみを
補強繊維として使用したフェノール樹脂成形材料が開発
されたが、この成形材料は、成形性が悪く、それを用い
て得られる成形品が光沢に欠けるようになり、また成形
品の硬度が大きくなりすぎて切削工具等の摩耗が大きく
なるという欠点を有していた。そこで、この発明者らは
、アスベストを使用せずに、耐熱性および機械強度に富
む成形品を製造でき、しかも上記のような問題を生じな
いフェノール樹脂成形材料を開発するために一連の研究
を重ねた結果、ガラス繊維とマイカとを併用するように
し、かつガラス繊維をシラン系表面処理剤で表面処理す
るとともに、マイカを樹脂液と共に加圧、剪断処理し、
このような表面処理ガラス繊維と加圧、剪断処理マイカ
とを所定量用いると、所期の目的が達成できるようにな
ることを見いだしここにこの発明を完成した。In recent years, phenolic resin molding materials have been reviewed in order to reduce weight, rationalize manufacturing processes, and reduce costs by replacing metal materials with plastic materials. This is based on the fact that phenolic resin molding materials can produce molded products with extremely high heat resistance and mechanical strength. In order to impart these characteristics to molded products,
Glass fibers and asbestos are used alone or in combination as reinforcing fibers in phenolic resin molding materials. However, among the above-mentioned reinforcing fibers, asbestos is a polluting substance, so it is desired to discontinue its use from the viewpoint of safety and health. Therefore, a phenolic resin molding material was developed that used only glass fiber as a reinforcing fiber, but this molding material had poor moldability and the molded products obtained using it lacked gloss. This has the disadvantage that the hardness of the cutting tool becomes too large, leading to increased wear on cutting tools and the like. Therefore, the inventors conducted a series of studies to develop a phenolic resin molding material that can produce molded products with high heat resistance and mechanical strength without using asbestos, and does not cause the problems described above. As a result of stacking, we decided to use glass fiber and mica together, surface-treated the glass fiber with a silane-based surface treatment agent, and applied pressure and shear treatment to the mica together with the resin liquid.
It was discovered that the desired object could be achieved by using a predetermined amount of such surface-treated glass fibers and pressurized and sheared mica, and the present invention was hereby completed.
すなわち、この発明は、下記の（２）成分と（２）成分
とが合計で４０〜７０重量％含有され、かつ（４）成分
と（有）成分との重量比（日／ＣＡ）が０．５〜２．０
に選ばれていることを特徴とするフエノール樹脂成形材
料をその要旨とするものである。That is, this invention contains the following components (2) and (2) components in a total of 40 to 70% by weight, and the weight ratio (day/CA) of component (4) and (component) is 0. .5-2.0
The gist of the invention is a phenolic resin molding material which is characterized by being selected from the following.
（４）シラン系表面処理剤で表面処理されたガラス繊維
。(4) Glass fiber surface-treated with a silane-based surface treatment agent.
（３）樹脂液と共に加圧、剪断処理されたマイカ。(3) Mica that has been pressurized and sheared together with resin liquid.
つぎに、この発明を詳しく説明する。この発明で用いる
、シラン系表面処理剤で表面処理されたガラス繊維とは
、ガラス繊維を、アミノシラン等のシラン系表面処理剤
で表面処理したものである。Next, this invention will be explained in detail. The glass fibers surface-treated with a silane-based surface treatment agent used in this invention are glass fibers whose surface has been surface-treated with a silane-based surface treatment agent such as aminosilane.
この場合、ガラス繊維としては、通常、直径３〜１５μ
、長さ１〜５ｍ７７Ｆのものが用いられる。このような
ガラス繊維をシラン系表面処理剤で処理することにより
、ガラス繊維とフエノール樹脂とのなじみがよくなつて
成形材料の成形性が向上し、また成形品の機械強度およ
び耐熱性が一層向上するとともに光沢も増すようになり
、かつ硬度も適正になつて工具等の摩耗が起きなくなる
のである。また、この発明で用いる、樹脂液と共に加圧
、剪断処理されたマイカとは、マイカを、成形材料中の
フエノール樹脂と相溶性のあるレゾール樹脂、ポリエス
テル樹脂、ノボラツク樹脂等の樹脂液と共に加圧、剪断
処理したものである。In this case, the glass fiber usually has a diameter of 3 to 15 μm.
, a length of 1 to 5 m77F is used. By treating such glass fibers with a silane-based surface treatment agent, the glass fibers and phenolic resin become more compatible, improving the moldability of the molding material, and further improving the mechanical strength and heat resistance of the molded product. At the same time, the gloss increases and the hardness becomes appropriate, preventing wear on tools, etc. In addition, the mica used in the present invention is pressurized and sheared together with a resin liquid. , sheared.
この場合、マイカとしては、通常、３２５メツシユ以上
の粒度をもつものが用いられ、特に１０〜６０メツシユ
以上の粒度をもつ大粒のものが賞用される。これは、大
粒のマイカ程補強作用および寸法安定化作用が大である
からである。３２５メツシユ未満の粒径のマイカを用い
ても、このような効果が小さいのである。In this case, mica having a particle size of 325 mesh or more is usually used, and in particular, large mica with a particle size of 10 to 60 mesh or more is used. This is because the larger the mica grains, the greater the reinforcing and dimensional stabilizing effects. Even if mica having a particle size of less than 325 mesh is used, such an effect is small.
加圧、剪断処理の際に用いられる樹脂液としては、液状
のレゾール樹脂のような、それ自身が液状になつている
樹脂を用いることが好ましいが、固形樹脂をメタノール
、スチレン、トルエン等の有機溶剤で溶解したものを用
いてもよいのであり、また液状の樹脂を有機溶剤で希釈
したものを用いてもよいのである。このような樹脂液の
使用量は、樹脂液中の樹脂分が、マイカに対して０．１
〜１０重量％（以下「％」と略す）になるように選ぶこ
とが効果の点から好ましく、より好ましくは０．５〜３
％になるように選ぶことである。そして、加圧、剪断処
理は、通常、マイカを上記の樹脂液と共に２本の回転ロ
ールの間を通すことにより行われる。As the resin liquid used during pressurization and shearing treatment, it is preferable to use a resin that is itself in a liquid state, such as a liquid resol resin. A resin dissolved in a solvent may be used, or a liquid resin diluted with an organic solvent may be used. The amount of such resin liquid to be used is such that the resin content in the resin liquid is 0.1 to mica.
From the viewpoint of effectiveness, it is preferable to select the amount to be 10% by weight (hereinafter abbreviated as "%"), more preferably 0.5 to 3% by weight.
%. The pressurization and shearing treatments are usually performed by passing the mica together with the resin liquid between two rotating rolls.
このようにすることにより、層状構造になつて層間に空
気層（この空気層は加熱により膨張して成形品にふくれ
を発生させその耐熱性を劣化させる）をもつマイカが剥
離して剥離薄片となるため空気層が減少するとともに、
マイカの剥離薄片が樹脂液でコーテイングされフエノー
ル樹脂とのなじみ性がよくなる。その結果、マイカ使用
による成形品の耐熱性の低下が解消され、かつ成形材約
の成形性が良好になるとともに、成形品の光沢が向上し
、かつ硬度が適正になるのである。このように加圧、剪
断処理されたマイカと、シラン系表面処理剤で表面処理
されたガラス繊維とが含有されているフエノール樹脂成
形材料は、例えばつぎのようにして製造される。By doing this, the mica, which has a layered structure and has an air layer between the layers (this air layer expands when heated, causes blisters in the molded product and deteriorates its heat resistance), peels off and becomes peeled flakes. As the air layer decreases,
Mica peel flakes are coated with resin liquid to improve compatibility with phenolic resin. As a result, the decrease in heat resistance of the molded product due to the use of mica is eliminated, the moldability of the molded material is improved, the gloss of the molded product is improved, and the hardness is appropriate. A phenolic resin molding material containing mica subjected to pressure and shear treatment in this manner and glass fibers whose surface has been treated with a silane-based surface treatment agent is produced, for example, in the following manner.
すなわち、上記のように加圧、剪断処理されたマイカと
、シラン系表面処理剤で表面処理されたガラス繊維と、
フエノール樹脂、硬化剤およびその他の添加物を混合し
、これを、加熱ロールを通すことにより成形材料化して
製造される。この場合、表面処理ガラス繊維と加工、剪
断処理マイカの合計量は全体の４０〜７０％に設定され
る。この範囲を外れると成形材料化が困難になるからで
ある。また、表面処理ガラス繊維（４）と加圧、剪断処
理マイカ（有）の相互の割合は、重量比（Ｂ／（Ａ）が
０．５〜２．０になるように設定される。すなわち、氾
）／ＣＡ）が０．５未満ではガラス繊維のみを補強繊維
として用いた成形材料と同様の欠点が現われ、２．０を
超えると成形品の強度低下を招くからである。このよう
にして製造された成形材料の性能を、未処理ガラス繊維
と未処理アスベストとを含有する成形材料（従来例）お
よび未処理ガラス繊維のみを含有する成形材料（従来例
）の性能と対比して第１表に示した。第１表から明らか
なように、この発明の成形材料は、従来の未処理ガラス
繊維と未処理アスベストとを含有する成形材料と同等か
それ以上の性能を有しているのである。つぎに、実施例
について比較例と併せて説明する。That is, mica that has been subjected to pressure and shear treatment as described above, glass fiber that has been surface treated with a silane surface treatment agent,
It is manufactured by mixing a phenolic resin, a curing agent, and other additives, and passing the mixture through heated rolls to form a molding material. In this case, the total amount of surface-treated glass fibers and processed and sheared mica is set to 40 to 70% of the total amount. This is because if it is outside this range, it becomes difficult to use it as a molding material. Further, the mutual ratio of the surface-treated glass fiber (4) and the pressurized and sheared mica (present) is set so that the weight ratio (B/(A)) is 0.5 to 2.0. This is because if the ratio (CA) is less than 0.5, the same drawbacks as molding materials using only glass fibers as reinforcing fibers will appear, and if it exceeds 2.0, the strength of the molded product will decrease. The performance of the molding material produced in this way is compared with that of a molding material containing untreated glass fibers and untreated asbestos (conventional example) and a molding material containing only untreated glass fibers (conventional example). The results are shown in Table 1. As is clear from Table 1, the molding material of the present invention has performance equivalent to or better than conventional molding materials containing untreated glass fibers and untreated asbestos. Next, examples will be described together with comparative examples.
〔実施例１〜５、比較例１〜７〕
通常の方法により合成したレゾール樹脂（数平均分子量
３７０）２重量部（以下「部」と略す）をメタノール８
部に均一に溶解し、これをマイカ（スゾライトマイカ２
０Ｓ）クラレ社製）１００部と均一に混合した。[Examples 1 to 5, Comparative Examples 1 to 7] 2 parts by weight (hereinafter abbreviated as "parts") of a resol resin (number average molecular weight 370) synthesized by a conventional method was mixed with 8 parts by weight of methanol.
The mica (susolite mica 2)
0S) manufactured by Kuraray Co., Ltd.).
つぎに、この混合物を室温において２本の回転ロール（
回転数１０〜１２ｒｐ□、クリアランス０．５ＴＥＬ雷
）の間を１０回通して樹脂液と共に加圧、剪断処理した
マイカ（処理マイカ）をつくつた。他方、通常の方法に
より合成したノボラツク樹脂（平均分子量７５０）を準
備するとともに、ガラス繊維（直径９μ、長さ６７ｎｍ
）に対してアミノシラン処理を施したもの（処理ガラス
繊維）を準備した。また、比較例５〜７用として、加圧
剪断処理を施さないそのままのマイカ（スゾライトマイ
カ２０Ｓ）を準備するとともに、アミノシラン処理を施
さないガラス繊維（直径９μ、長さ６ｍｍ）を準備した
。つぎに、これらの原料を第２表のように配合し、加熱
ロールを用いて混練、粉砕しフエノール樹脂成形材料を
得た。以上の実施例および比較例で得られたフエノール
樹脂成形材料を通常と同様にして直圧成形した。Next, this mixture was passed through two rotating rolls (
Mica was pressurized and sheared (treated mica) together with a resin liquid by passing the mica through a rotation speed of 10 to 12 rp□ and a clearance of 0.5 TEL 10 times (treated mica). On the other hand, a novolak resin (average molecular weight 750) synthesized by a conventional method was prepared, and a glass fiber (diameter 9μ, length 67nm) was prepared.
) was treated with aminosilane (treated glass fiber). Further, for Comparative Examples 5 to 7, as-is mica (Suzolite Mica 20S) that was not subjected to pressure shearing treatment was prepared, and glass fiber (diameter 9μ, length 6 mm) that was not subjected to aminosilane treatment was prepared. Next, these raw materials were blended as shown in Table 2, kneaded and crushed using heated rolls to obtain a phenolic resin molding material. The phenolic resin molding materials obtained in the above Examples and Comparative Examples were directly pressure molded in the same manner as usual.
Claims (1)
０重量％含有され、かつ（Ａ）成分と（Ｂ）成分との重
量比（Ｂ）／（Ａ）が０．５〜２．０に選ばれているこ
とを特徴とするフェノール樹脂成形材料。 （Ａ）シラン系表面処理剤で表面処理されたガラス繊維
。 （Ｂ）成形材料中のフェノール樹脂と相溶性のある樹脂
液と共に加圧、剪断処理されたマイカ。 ２ シラン系表面処理剤で表面処理されたガラス繊維が
、アミノシランで表面処理された直径３〜１５μ、長さ
１〜５ｍｍのガラス繊維である特許請求の範囲第１項記
載のフェノール樹脂成形材料。 ３ 成形材料中のフェノール樹脂と相溶性のある樹脂液
と共に加圧、剪断処理されたマイカが、３２５メッシュ
以上の粒度をもつマイカをレゾール樹脂と共に２本の回
転ロールの間を通すことにより得られたものである特許
請求の範囲第１項または第２項記載のフェノール樹脂成
形材料。[Claims] 1. The following components (A) and (B) in total are 40 to 7.
A phenolic resin molding material containing 0% by weight and having a weight ratio (B)/(A) of components (A) and (B) selected from 0.5 to 2.0. (A) Glass fiber surface-treated with a silane-based surface treatment agent. (B) Mica that has been subjected to pressure and shear treatment together with a resin liquid that is compatible with the phenolic resin in the molding material. 2. The phenolic resin molding material according to claim 1, wherein the glass fibers surface-treated with a silane-based surface treatment agent are glass fibers surface-treated with aminosilane and having a diameter of 3 to 15 μm and a length of 1 to 5 mm. 3 Mica that has been pressurized and sheared together with a resin liquid that is compatible with the phenolic resin in the molding material is obtained by passing mica with a particle size of 325 mesh or more between two rotating rolls together with resol resin. The phenolic resin molding material according to claim 1 or 2, which is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15965779A JPS5950253B2 (en) | 1979-12-08 | 1979-12-08 | Phenolic resin molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15965779A JPS5950253B2 (en) | 1979-12-08 | 1979-12-08 | Phenolic resin molding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5682840A JPS5682840A (en) | 1981-07-06 |
| JPS5950253B2 true JPS5950253B2 (en) | 1984-12-07 |
Family
ID=15698485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15965779A Expired JPS5950253B2 (en) | 1979-12-08 | 1979-12-08 | Phenolic resin molding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950253B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61151261A (en) * | 1984-12-25 | 1986-07-09 | Sumitomo Bakelite Co Ltd | Production of phenolic resin molding material |
-
1979
- 1979-12-08 JP JP15965779A patent/JPS5950253B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5682840A (en) | 1981-07-06 |
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