JPH0432862B2 - - Google Patents
Info
- Publication number
- JPH0432862B2 JPH0432862B2 JP57184666A JP18466682A JPH0432862B2 JP H0432862 B2 JPH0432862 B2 JP H0432862B2 JP 57184666 A JP57184666 A JP 57184666A JP 18466682 A JP18466682 A JP 18466682A JP H0432862 B2 JPH0432862 B2 JP H0432862B2
- Authority
- JP
- Japan
- Prior art keywords
- molding material
- phenolic resin
- weight
- barium sulfate
- glass fiber
- 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
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 28
- 239000012778 molding material Substances 0.000 claims description 24
- 239000005011 phenolic resin Substances 0.000 claims description 17
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 16
- 229920001568 phenolic resin Polymers 0.000 claims description 16
- 239000003365 glass fiber Substances 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 11
- 238000005299 abrasion Methods 0.000 description 9
- 239000000654 additive Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011134 resol-type phenolic resin Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- -1 cresol Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical class OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000010680 novolac-type phenolic resin Substances 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、耐熱性、機械的強度、耐摩耗性、電
気特性に優れたフエノール樹脂成形材料に関す
る。
〔発明の技術的背景とその問題点〕
フエノール樹脂は、基材、可塑剤、着色剤、離
形剤を混合、混練した成形材料等として幅広く用
いられている。
一般的にフエノール樹脂成形材料は主充填剤と
して木粉を用いるため、耐熱性、機械的強度、耐
摩耗性等に欠点があつた。この欠点を改良するも
のとしてアスベスト、炭酸カルシウムおよびタル
ク等の無機質を充填剤として用いたものは、機械
的強度および耐摩耗性に難点がある。この難点を
改良しようとグラフアイトを充填剤として用いた
が耐摩耗性については改善されたものの機械的強
度、電気特性に欠点がある。これらの欠点を改良
するものでガラス繊維を充填剤として用いたもの
は耐熱性、機械的強度は強いが耐摩耗性（特に相
手金属材料の摩耗）に欠点があつた。又天然有機
繊維を充填剤として使用したものは、機械的強度
および耐摩耗性は良いが耐熱性に欠点がある。こ
のような状況で耐熱性、機械的強度、耐摩耗性、
電気特性の優れたバランスのとれたフエノール樹
脂成形材料が求められている。
〔発明の目的〕
本発明は、従来の欠点を解消する耐熱性、機械
的強度、耐摩耗性および電気特性に優れたバラン
スのとれたフエノール樹脂成形材料を提供するこ
とを目的としている。
〔発明の概要〕
本発明は上記の目的を達成すべく鋭意研究を重
ねた結果、フエノール樹脂にガラス繊維と天然有
機繊維と硫酸バリウムとを主成分とする成形材料
が目的としている特性をそなえている事を見出し
たものである。即ち、フエノール樹脂、ガラス繊
維、天然有機繊維および硫酸バリウムを主成分と
し、かつ成形材料に対してガラス繊維５〜40重量
％、天然有機繊維５〜30重量％および硫酸バリウ
ム５〜30重量％含有することを特徴とするフエノ
ール樹脂成形材料で耐熱性、機械的強度、耐摩耗
性および電気特性に優れバランスのとれた成形材
料である。
本発明で使用するフエノール樹脂は、フエノー
ル、クレゾールのフエナール類、又は糖密、リグ
ニン、キシレン、ナフタレン、石油系芳香族炭化
水素による変形フエノール類と、ホルマリン、パ
ラホルムアルデヒド等のアルデヒド類とを適宜の
モル比に配合し、解媒下で反応させたノボラツク
型フエノール樹脂初期縮合物、又はレゾール型フ
エノール樹脂初期縮合物およびノボラツク型フエ
ノール樹脂初期縮合物とレゾール型フエノール樹
脂初期縮合物を組み合わせたもの等があげられ
る。
本発明で使用するガラス繊維は２〜20μ径の単
繊維が集束されたストランドを0.1〜25mmに切断
したもの等があげられる。
本発明で使用する天然有機繊維は、綿フロツ
ク、α−セルロース、亜麻、***、黄麻、綿繊
布、綿毛粉などがあげられる。
本発明で使用する硫酸バリウムは、沈降性硫酸
バリウム薬用硫酸バリウムおよび簸性硫酸バリウ
ムなどがあげられる。
上述の如く本発明はフエノール樹脂、ガラス繊
維、天然有機繊維および硫酸バリウムを主成分と
する成形材料であるが各主成分の割合は次の通り
である。
ガラス繊維の配合割合は、成形材料に対して５
〜40重量％の範囲である。５重量％未満では機械
的強度が弱く好ましくない。40重量％を超えると
耐摩耗性が悪くなる。従つて上記範囲に限定され
る。より好ましくは15〜25重量％の範囲である。
天然有機繊維は成形材料に対して５〜30重量％
で、５重量％未満では機械的強度が弱く、30重量
％を超えると耐熱性が悪くなる。より好ましくは
８〜20重量％の範囲である。硫酸バリウムの配合
量は、成形材料に対して５〜30重量％の範囲で、
５重量％未満では耐摩耗性および耐熱性に効果が
なく、30重量％を超えると機械的強度が劣り都合
が悪い。従つて上記範囲に限定される。より好ま
しくは８〜20重量％の範囲である。
本発明の成形材料は必要に応じ、硬化剤、着色
剤、硬化促進剤、難燃剤、離形剤、滑剤、カツプ
リング処理剤、可塑剤等の添加剤を配合すること
は差支えない。
成形材料の製造は通常次のようにして行う。
所定量のフエノール樹脂、ガラス繊維、天然有
機繊維および硫酸バリウム、それに応じ硬化剤、
着色剤、硬化促進剤、難燃剤、離形剤、滑剤、カ
ツプリング処理剤、可塑剤を混合し、均一に分散
させた後、混練機で加熱混練し、ついで冷却固化
させ適当な粉砕機に適当な大きさに粉砕して成形
材料を製造する。
〔発明の効果〕
本発明のフエノール樹脂成形材料は、耐熱性が
高く、機械強度が強く耐摩耗性および電気特性に
優れており極めてバランスのとれた成形材料であ
る。
〔発明の実施例〕
以下本発明を実施例により具体的に説明するが
本発明はこれらの実施例によつて限定されるもの
ではない。以下に「％」は「重量％」を意味す
る。
実施例 １
ノボラツク型フエノール樹脂45％にヘキサメチ
レンテトラミン７％、ガラス繊維20％、綿フロツ
ク10％、硫酸バリウム10％その他の添加剤８％を
常温で混合し90％〜110℃で混練して冷却した後、
粉砕して成形材料とした。この成形材料を圧縮成
形および射出成形で170℃に加熱した金型で成形
硬化させて成形品とした。得られた成形品につい
てその特性を調査し、その結果を第１表に示し
た。
実施例 ２
レゾール型フエノール樹脂50％にガラス繊維15
％、綿織布15％、硫酸バリウム15％、その他添加
剤５％を実施例１と同様に処理して成形材料を得
て、成形品とした。この成形品について特性を調
査し、その結果を第１表に示した。
比較例 １
ノボラツク型フエノール樹脂50％にヘキサメチ
レンテトラミン８％、木粉35％、その他添加剤７
％を実施例１と同様に処理して成形爺材料を得て
同様にして成形品を得た。この成形品について特
性を調査し、その結果を第１表に示した。
比較例 ２
レゾール型フエノール樹脂50％にガラス繊維45
％その他添加剤５％を実施例１と同様に処理して
成形材料を得て成形品とした。この成形品につい
て特性を調査し、その結果を第１表に示した。
【表】DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a phenolic resin molding material that has excellent heat resistance, mechanical strength, abrasion resistance, and electrical properties. [Technical background of the invention and its problems] Phenol resins are widely used as molding materials, etc., which are prepared by mixing and kneading base materials, plasticizers, colorants, and mold release agents. Since phenolic resin molding materials generally use wood flour as the main filler, they have drawbacks in heat resistance, mechanical strength, abrasion resistance, etc. In order to improve this drawback, materials using inorganic materials such as asbestos, calcium carbonate and talc as fillers have drawbacks in mechanical strength and abrasion resistance. Graphite was used as a filler in an attempt to overcome this problem, but although the wear resistance was improved, it still had drawbacks in mechanical strength and electrical properties. Products that use glass fiber as a filler to improve these drawbacks have high heat resistance and mechanical strength, but have drawbacks in abrasion resistance (particularly abrasion of the mating metal material). Also, those using natural organic fibers as fillers have good mechanical strength and abrasion resistance, but have a drawback in heat resistance. In this situation, heat resistance, mechanical strength, abrasion resistance,
There is a need for a well-balanced phenolic resin molding material with excellent electrical properties. [Object of the Invention] An object of the present invention is to provide a well-balanced phenolic resin molding material having excellent heat resistance, mechanical strength, abrasion resistance, and electrical properties, which eliminates the conventional drawbacks. [Summary of the Invention] As a result of intensive research aimed at achieving the above object, the present invention provides a phenolic resin with the desired characteristics of a molding material whose main components are glass fiber, natural organic fiber, and barium sulfate. I discovered that there is. That is, the main components are phenolic resin, glass fiber, natural organic fiber, and barium sulfate, and the molding material contains 5 to 40% by weight of glass fiber, 5 to 30% by weight of natural organic fiber, and 5 to 30% by weight of barium sulfate. It is a phenolic resin molding material that is well-balanced with excellent heat resistance, mechanical strength, abrasion resistance, and electrical properties. The phenolic resin used in the present invention is a mixture of phenol, phenols such as cresol, or phenols modified with molasses, lignin, xylene, naphthalene, or petroleum aromatic hydrocarbons, and aldehydes such as formalin and paraformaldehyde. A novolak-type phenolic resin initial condensate mixed in a molar ratio and reacted under desolation, or a resol-type phenolic resin initial condensate and a combination of a novolak-type phenolic resin initial condensate and a resol-type phenolic resin initial condensate, etc. can be given. The glass fiber used in the present invention may be a strand of single fibers with a diameter of 2 to 20 μm cut into 0.1 to 25 mm pieces. Examples of the natural organic fibers used in the present invention include cotton flock, α-cellulose, flax, hemp, jute, cotton fabric, and fluff powder. Examples of the barium sulfate used in the present invention include precipitated barium sulfate, medicinal barium sulfate, and elutriated barium sulfate. As mentioned above, the present invention is a molding material whose main components are phenolic resin, glass fiber, natural organic fiber, and barium sulfate, and the proportions of each main component are as follows. The blending ratio of glass fiber is 5% to the molding material.
~40% by weight. If it is less than 5% by weight, the mechanical strength will be weak and undesirable. If it exceeds 40% by weight, wear resistance will deteriorate. Therefore, it is limited to the above range. More preferably, it is in the range of 15 to 25% by weight.
Natural organic fibers account for 5-30% by weight of the molding material.
If it is less than 5% by weight, the mechanical strength will be weak, and if it exceeds 30% by weight, the heat resistance will be poor. More preferably, it is in the range of 8 to 20% by weight. The blending amount of barium sulfate is in the range of 5 to 30% by weight based on the molding material.
If it is less than 5% by weight, there will be no effect on wear resistance and heat resistance, and if it exceeds 30% by weight, mechanical strength will be poor, which is inconvenient. Therefore, it is limited to the above range. More preferably, it is in the range of 8 to 20% by weight. The molding material of the present invention may contain additives such as a curing agent, a coloring agent, a curing accelerator, a flame retardant, a mold release agent, a lubricant, a coupling agent, a plasticizer, etc., as necessary. The molding material is usually manufactured as follows. Predetermined amounts of phenolic resin, glass fiber, natural organic fiber and barium sulfate, curing agent accordingly,
Colorant, curing accelerator, flame retardant, mold release agent, lubricant, coupling agent, and plasticizer are mixed and uniformly dispersed, then heated and kneaded in a kneader, then cooled and solidified, and then placed in an appropriate pulverizer. The molding material is produced by pulverizing the material to a size that is suitable for the molding material. [Effects of the Invention] The phenolic resin molding material of the present invention has high heat resistance, strong mechanical strength, excellent wear resistance and electrical properties, and is an extremely well-balanced molding material. [Examples of the Invention] The present invention will be specifically explained below with reference to Examples, but the present invention is not limited to these Examples. Hereinafter, "%" means "% by weight". Example 1 45% novolak type phenolic resin, 7% hexamethylenetetramine, 20% glass fiber, 10% cotton floc, 10% barium sulfate, and 8% other additives were mixed at room temperature and kneaded at 90-110°C. After cooling,
It was crushed and used as a molding material. This molding material was molded and cured by compression molding and injection molding in a mold heated to 170°C to obtain a molded product. The properties of the obtained molded article were investigated, and the results are shown in Table 1. Example 2 50% resol type phenolic resin and 15% glass fiber
%, 15% cotton woven fabric, 15% barium sulfate, and 5% other additives were treated in the same manner as in Example 1 to obtain a molding material, and a molded article was obtained. The properties of this molded article were investigated and the results are shown in Table 1. Comparative Example 1 50% novolac type phenolic resin, 8% hexamethylenetetramine, 35% wood flour, and other additives 7
% was treated in the same manner as in Example 1 to obtain a molded material, and a molded article was obtained in the same manner. The properties of this molded article were investigated and the results are shown in Table 1. Comparative example 2 50% resol type phenolic resin and 45% glass fiber
% and 5% of other additives were treated in the same manner as in Example 1 to obtain a molding material and a molded article. The properties of this molded article were investigated and the results are shown in Table 1. 【table】
Claims (1)
および硫酸バリウムを主成分とし、成形材料に対
し、ガラス繊維５〜40重量％、天然有機繊維５〜
30重量％、硫酸バリウム５〜30重量％含有するこ
とを特徴とするフエノール樹脂成形材料。1 The main components are phenolic resin, glass fiber, natural organic fiber and barium sulfate, and the molding material contains 5 to 40% by weight of glass fiber and 5 to 5% of natural organic fiber.
A phenolic resin molding material characterized by containing 30% by weight and 5 to 30% by weight of barium sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18466682A JPS5974155A (en) | 1982-10-22 | 1982-10-22 | Phenolic resin molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18466682A JPS5974155A (en) | 1982-10-22 | 1982-10-22 | Phenolic resin molding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5974155A JPS5974155A (en) | 1984-04-26 |
| JPH0432862B2 true JPH0432862B2 (en) | 1992-06-01 |
Family
ID=16157227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18466682A Granted JPS5974155A (en) | 1982-10-22 | 1982-10-22 | Phenolic resin molding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5974155A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62275151A (en) * | 1986-05-23 | 1987-11-30 | Fudo Kagaku Kogyo Kk | Heat-resistant, high-strengh phenolic resin molding material and production thereof |
| JP5592728B2 (en) * | 2010-08-09 | 2014-09-17 | 雅一 塚本 | Resin composition for molding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49102774A (en) * | 1973-01-29 | 1974-09-27 | ||
| JPS5716050A (en) * | 1980-07-02 | 1982-01-27 | Matsushita Electric Works Ltd | Phenolic molding material |
| JPS5792043A (en) * | 1980-11-29 | 1982-06-08 | Matsushita Electric Works Ltd | Phenolic resin molding material |
-
1982
- 1982-10-22 JP JP18466682A patent/JPS5974155A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49102774A (en) * | 1973-01-29 | 1974-09-27 | ||
| JPS5716050A (en) * | 1980-07-02 | 1982-01-27 | Matsushita Electric Works Ltd | Phenolic molding material |
| JPS5792043A (en) * | 1980-11-29 | 1982-06-08 | Matsushita Electric Works Ltd | Phenolic resin molding material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5974155A (en) | 1984-04-26 |
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