JP2531166B2 - Manufacturing method of molded products of phenolic resin molding materials - Google Patents
Manufacturing method of molded products of phenolic resin molding materialsInfo
- Publication number
- JP2531166B2 JP2531166B2 JP62034730A JP3473087A JP2531166B2 JP 2531166 B2 JP2531166 B2 JP 2531166B2 JP 62034730 A JP62034730 A JP 62034730A JP 3473087 A JP3473087 A JP 3473087A JP 2531166 B2 JP2531166 B2 JP 2531166B2
- Authority
- JP
- Japan
- Prior art keywords
- resin molding
- phenolic resin
- phenol resin
- molding material
- molded product
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 〔技術分野〕 本発明は電気機器部品、自動車用部品、船舶用部品、
通信機用部品等に用いられる耐熱性を必要とするフエノ
ール樹脂成形材料の成形品の製法に関するものである。TECHNICAL FIELD The present invention relates to electric equipment parts, automobile parts, ship parts,
The present invention relates to a method for producing a molded product of a phenol resin molding material that is required to have heat resistance and that is used for parts for communication devices.
従来、耐熱性を必要とするフエノール樹脂成形品には
充填剤としてガラス繊維やアスベスト繊維を添加してい
るが、フエノール樹脂自身の熱分解温度が300〜330℃程
度のため、300℃以上で使用されると機械強度等が急激
に低下する問題があった。Conventionally, glass fibers and asbestos fibers have been added as fillers to phenol resin molded products that require heat resistance, but since the thermal decomposition temperature of the phenol resin itself is around 300-330 ° C, use it at 300 ° C or higher. If so, there is a problem that mechanical strength and the like are sharply reduced.
本発明の目的とするところは、耐熱性に優れたフエノ
ール樹脂成形材料の成形品の製法を提供することにあ
る。An object of the present invention is to provide a method for producing a molded article of a phenol resin molding material having excellent heat resistance.
本発明はフェノール樹脂に対し硬化剤、充填剤、離型
剤、着色剤等の添加剤を添加し、混合及び混練してなる
フェノール樹脂成形材料を加熱加圧成形するフェノール
樹脂成形材料の成形品の製法において、前記添加剤がホ
ウ酸を含有し、このホウ酸の含有量がフェノール樹脂10
0重量部に対し５〜50重量部であるフェノール樹脂成形
材料を加熱加圧成形して得る成形品を150℃〜210℃で、
３〜18時間アフターキュアーすることを特徴とするフェ
ノール樹脂成形材料の成形品の製法のため、アフターキ
ュアー時にフエノール樹脂とホウ酸が反応することによ
りフエノール樹脂の熱分解温度を著るしく向上させるこ
とができ、耐熱性を改善することができたもので、以下
本発明を詳細に説明する。The present invention is a molded product of a phenol resin molding material, which is obtained by adding a curing agent, a filler, a release agent, a colorant, and other additives to a phenol resin, and mixing and kneading the phenol resin molding material under heat and pressure. In the production method of, the additive contains boric acid, and the content of boric acid is 10
A molded product obtained by heat-pressurizing a phenol resin molding material that is 5 to 50 parts by weight with respect to 0 parts by weight at 150 to 210 ° C.
To improve the thermal decomposition temperature of the phenol resin by reacting the phenol resin and boric acid during the after-curing because it is a method for producing a molded product of a phenol resin molding material characterized by after-curing for 3 to 18 hours. The heat resistance was improved, and the present invention will be described in detail below.
本発明に用いるフエノール樹脂としては、フエノール
樹脂、クレゾール樹脂、キシレノール樹脂等の単独、混
合物やフエノール樹脂と変性可能なナフタリン、リグニ
ン、糖蜜、キシレン、メラミン、エポキシ等による変性
フエノール樹脂等のようにフエノール樹脂全般を用いる
ことができ、更にはノボラック型、レゾール型の各れで
あってもよい。ホウ酸の添加量は好ましくはフエノール
樹脂100重量部（以下単に部と記す）に対して５〜50部
であることが必要である。即ち５部未満では耐熱性、熱
時強度が向上し難く、50部をこえると成形品外観が低下
するからである。更にノボラック型フエノール樹脂につ
いては硬化剤としてのヘキサミンの添加が必要である。
フエノール樹脂、並びに添加剤であるヘキサミン及びホ
ウ酸以外の添加剤としてはフエノール樹脂成形材料に通
常用いられる木粉、炭酸カルシウム、ガラス繊維、アス
ベスト繊維等の充填剤、ステアリン酸、ワックス、金属
石鹸等の離型剤、着色剤、更にはカップリング剤等の添
加剤を添加しこれら材料を混合、混練、粉砕し必要に応
じて造粒してフエノール樹脂成形材料を得るものであ
る。フエノール樹脂成形材料の成形については圧縮成
形、トランスファー成形、射出成形、押出成形等任意の
成形方法によって加熱加圧成形して成形品とし、該成形
品を150〜210℃にて３〜18時間アフターキュアーするこ
とによって耐熱性、熱時強度に優れた成形品を得るもの
である。アフターキュアーが150℃未満、３時間未満で
は耐熱性が向上し難く、210℃をこえ、18時間をこえる
と成形品外観が低下する傾向にある。As the phenol resin used in the present invention, a phenol resin, a cresol resin, a xylenol resin or the like, a phenol such as a mixture of a phenol resin modified with a mixture resin or a phenol resin, lignin, molasses, xylene, melamine, epoxy, or the like can be used. All resins can be used, and each may be a novolac type or a resol type. The amount of boric acid added is preferably 5 to 50 parts with respect to 100 parts by weight of the phenol resin (hereinafter simply referred to as "part"). That is, if it is less than 5 parts, it is difficult to improve the heat resistance and the strength during heating, and if it exceeds 50 parts, the appearance of the molded product deteriorates. Further, for novolac type phenolic resin, it is necessary to add hexamine as a curing agent.
As additives other than phenol resin and hexamine and boric acid which are additives, fillers such as wood powder, calcium carbonate, glass fiber, asbestos fiber and the like which are usually used for phenol resin molding materials, stearic acid, wax, metal soap, etc. The release agent, colorant, and further additives such as coupling agents are added, and these materials are mixed, kneaded, pulverized, and granulated as needed to obtain a phenol resin molding material. For molding of phenolic resin molding material, heat and pressure molding is performed by any molding method such as compression molding, transfer molding, injection molding, extrusion molding to obtain a molded article, and the molded article is after-sales at 150 to 210 ° C for 3 to 18 hours. By curing, a molded product excellent in heat resistance and hot strength is obtained. If the after cure is less than 150 ° C. and less than 3 hours, it is difficult to improve the heat resistance, and if it exceeds 210 ° C. and exceeds 18 hours, the appearance of the molded product tends to deteriorate.
以下本発明を実施例に基づいて説明する。 The present invention will be described below based on examples.
実施例１乃至３と比較例 第１表の配合に基づいて材料を配合、混合、混練、粉
砕して得たフエノール樹脂成形材料を300kg/cm2、165℃
で１分間加熱加圧成形して成形品を得た。次に該成形品
を180℃で12時間アフターキュアーして耐熱性成形品と
した。Examples 1 to 3 and Comparative Example A phenol resin molding material obtained by blending, mixing, kneading and crushing materials based on the formulation of Table 1 is 300 kg / cm 2 , 165 ° C.
Was heated and pressed for 1 minute to obtain a molded product. Next, the molded product was after-cured at 180 ° C. for 12 hours to obtain a heat resistant molded product.
〔発明の効果〕 実施例１乃至３と比較例のアフターキュアー後の成形
品の常温曲げ強度、耐熱試験後曲げ強度、熱分解温度は
第２表で明白なように本発明のものの性能はよく本発明
のフエノール樹脂成形材料の成形品の製法の優れている
ことを確認した。 [Effects of the Invention] As shown in Table 2, the room-temperature bending strength, the bending strength after heat resistance test, and the thermal decomposition temperature of the molded products after after-curing of Examples 1 to 3 and Comparative Example are good. It was confirmed that the method for producing a molded article of the phenol resin molding material of the present invention was excellent.
Claims (1)
型剤、着色剤等の添加剤を添加し、混合及び混練してな
るフェノール樹脂成形材料を加熱加圧成形するフェノー
ル樹脂成形材料の成形品の製法において、前記添加剤が
ホウ酸を含有し、このホウ酸の含有量がフェノール樹脂
100重量部に対し５〜50重量部であるフェノール樹脂成
形材料を加熱加圧成形して得る成形品を150℃〜210℃
で、３〜18時間アフターキュアーすることを特徴とする
フェノール樹脂成形材料の成形品の製法。1. A phenolic resin molding material obtained by adding a curing agent, a filler, a release agent, a colorant, and other additives to a phenolic resin, and mixing and kneading the resulting phenolic resin molding material under heat and pressure. In the method for producing a molded article, the additive contains boric acid, and the content of boric acid is phenol resin.
Molded product obtained by heat-pressing 5 to 50 parts by weight of phenol resin molding material per 100 parts by weight is 150 to 210 ° C.
Then, a method for producing a molded product of a phenolic resin molding material, which comprises after-curing for 3 to 18 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62034730A JP2531166B2 (en) | 1987-02-18 | 1987-02-18 | Manufacturing method of molded products of phenolic resin molding materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62034730A JP2531166B2 (en) | 1987-02-18 | 1987-02-18 | Manufacturing method of molded products of phenolic resin molding materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63202647A JPS63202647A (en) | 1988-08-22 |
| JP2531166B2 true JP2531166B2 (en) | 1996-09-04 |
Family
ID=12422432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62034730A Expired - Lifetime JP2531166B2 (en) | 1987-02-18 | 1987-02-18 | Manufacturing method of molded products of phenolic resin molding materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531166B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472295A (en) * | 1977-11-21 | 1979-06-09 | Charbonnages Ste Chimique | Method of making phenol formaline type resin articles |
-
1987
- 1987-02-18 JP JP62034730A patent/JP2531166B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63202647A (en) | 1988-08-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |