JPH02272053A - Polyoxymethylene resin composition - Google Patents
Polyoxymethylene resin compositionInfo
- Publication number
- JPH02272053A JPH02272053A JP9300589A JP9300589A JPH02272053A JP H02272053 A JPH02272053 A JP H02272053A JP 9300589 A JP9300589 A JP 9300589A JP 9300589 A JP9300589 A JP 9300589A JP H02272053 A JPH02272053 A JP H02272053A
- Authority
- JP
- Japan
- Prior art keywords
- polyoxymethylene resin
- resin composition
- magnesium oxysulfate
- fibrous magnesium
- polyoxymethylene
- 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
- -1 Polyoxymethylene Polymers 0.000 title claims abstract description 27
- 229920006324 polyoxymethylene Polymers 0.000 title claims abstract description 25
- 229930040373 Paraformaldehyde Natural products 0.000 title claims abstract description 24
- 239000011342 resin composition Substances 0.000 title claims abstract description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 20
- 239000011777 magnesium Substances 0.000 claims abstract description 20
- CENHPXAQKISCGD-UHFFFAOYSA-N trioxathietane 4,4-dioxide Chemical compound O=S1(=O)OOO1 CENHPXAQKISCGD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 230000000704 physical effect Effects 0.000 abstract description 8
- 238000013329 compounding Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000012779 reinforcing material Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011236 particulate material Substances 0.000 description 3
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-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
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 101150091510 Clec11a gene Proteins 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011968 lewis acid catalyst Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- 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、顆粒形態繊維状マグネシウムオキシサルフェ
ートを配合してなる複合ポリオキシメチレン樹脂組成物
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a composite polyoxymethylene resin composition containing granular fibrous magnesium oxysulfate.
ポリオキシメチレン樹脂の剛性、機械的強度、耐熱性、
成形収縮率、寸法安定性などの各種の性質を改良する目
的で無機物質を配合する技術はよ（知られている。その
ような目的のために用いられる無機物質としては炭酸カ
ルシウム、硫酸バリウム、水酸化マグネシウムなどのよ
うな粒子状物質、タルク、マイカなどの小片板状あるい
はフレーク状物質、さらにガラス繊維、アスベストなど
のような繊維状物質がよく知られている。Rigidity, mechanical strength, heat resistance of polyoxymethylene resin,
There are well-known techniques for blending inorganic substances for the purpose of improving various properties such as mold shrinkage rate and dimensional stability. Examples of inorganic substances used for such purposes include calcium carbonate, barium sulfate, Particulate materials such as magnesium hydroxide, platelet or flake materials such as talc, mica, and fibrous materials such as glass fiber, asbestos, etc. are well known.
これらの無機物質のうち、粒子状物質はポリオキシメチ
レン樹脂の補強効果が余り高くないため、これらの粒子
状物質を配合して得られたポリオキシメチレン樹脂成形
品は、高い性能が要求される用途には一般には使用でき
ない場合が多い。これに対して、小片板状あるいはフレ
ーク状物質や繊維状物質は、それぞれ二次元的又は−次
元的な高い補強効果を示すため、ポリオキシメチレン樹
脂用の補強材料として広く用いられている。しかしなが
ら効果の高いこれらの強化材料は、一方では各種の欠点
を持っており、このため目的によってはそれらの強化材
料の使用が制限される場合もある０例えば小片板状ある
いはフレーク状物質を配合したポリオキシメチレン樹脂
は、ガラス繊維などの繊維状物質を配合したものに比べ
た場合、般に成形品の剛性のレベルが低く、かつ成形時
にフローマークが発生しやすいとの欠点がある。−方、
繊維状の物質を配合したものは、成形品の伸びが小さく
、また成形品にシルバーストリークが発生し易く、光沢
不良になる場合が多い。特にガラス繊維を用いた場合に
は、その成形品が高温衝撃に弱いといった欠点がある。Among these inorganic substances, particulate materials do not have a very strong reinforcing effect on polyoxymethylene resin, so polyoxymethylene resin molded products obtained by blending these particulate materials are required to have high performance. In many cases, it cannot be used for general purposes. On the other hand, small plate-like or flake-like materials and fibrous materials exhibit high two-dimensional or -dimensional reinforcing effects, respectively, and are therefore widely used as reinforcing materials for polyoxymethylene resins. However, these highly effective reinforcing materials have various drawbacks, which may limit their use depending on the purpose. Polyoxymethylene resins have disadvantages in that, compared to those containing fibrous substances such as glass fibers, the rigidity level of molded products is generally low and flow marks are likely to occur during molding. - direction,
When a fibrous substance is blended, the elongation of the molded product is small, silver streaks are likely to occur in the molded product, and the gloss is often poor. Particularly when glass fiber is used, there is a drawback that the molded product is susceptible to high-temperature impact.
従って、これらの従来の強化材料を用いる場合は、強化
材料の欠点をも考慮して、その成形品の使用対象に合わ
せて選択する必要がある。Therefore, when using these conventional reinforcing materials, it is necessary to take into consideration the drawbacks of the reinforcing materials and select them according to the intended use of the molded product.
勿論、上記のような各種欠点は、基礎材料の、ポリオキ
シメチレン樹脂の選択及び変性、強化材料として用いる
無機物質の表面処理、適当な第三物質の添加、あるいは
成形加工条件の検討などの方法により、部分的に改良で
きるが、充分に満足できる改良は困難である。Of course, the various drawbacks mentioned above can be overcome by methods such as the selection and modification of the polyoxymethylene resin as the base material, the surface treatment of the inorganic substance used as a reinforcing material, the addition of an appropriate third substance, or the consideration of molding processing conditions. Although some improvements can be made, it is difficult to achieve a fully satisfactory improvement.
これまで、熱可塑性樹脂と繊維状マグネシウムオキシサ
ルフェートを配合して、上記欠点が改良された強化樹脂
組成物の製造方法として特開昭５９−１７２５’３３号
の公報がある。Until now, Japanese Patent Application Laid-Open No. 59-1725'33 discloses a method for producing a reinforced resin composition in which the above-mentioned drawbacks are improved by blending a thermoplastic resin and fibrous magnesium oxysulfate.
しかし、繊維状マグネシウムオキシサルフェートは、嵩
比重が橿めて小さいために、通常の加工において一般的
に用いられるペレット状または顆粒状のポリオキシメチ
レン樹脂との混合は容易ではない。即ち、両者の形状や
密度の相違のために、通常の無機物質とポリオキシメチ
レン樹脂との混合操作において適用される予め両者をＶ
型ブレンダーやリボンミキサーなどの乾式混合機によっ
て混合したものを溶融混合機に供給する場合（トライブ
レンド法）、材料供給口でブリッジ（閉塞）や、ポリオ
キシメチレン樹脂と繊維状マグネシウムオキシサルフェ
ートとの分離現象が起こりやすい。このために、強化樹
脂組成物を製造するときの加工性が悪く、また均一な樹
脂組成物が得られにくく、結果として成形品の物性や外
観もよくない場合がある。However, since fibrous magnesium oxysulfate has a relatively small bulk specific gravity, it is not easy to mix it with pellet or granule polyoxymethylene resin that is commonly used in normal processing. That is, due to the difference in shape and density between the two, V
When feeding a mixture using a dry mixer such as a mold blender or a ribbon mixer to a melt mixer (tri-blend method), there may be bridges (occlusions) at the material supply port or the combination of polyoxymethylene resin and fibrous magnesium oxysulfate. Separation phenomenon is likely to occur. For this reason, the processability when producing a reinforced resin composition is poor, and it is difficult to obtain a uniform resin composition, and as a result, the physical properties and appearance of the molded article may be poor.
本発明者らは、繊維状マグネシウムオキシサルフェート
で強化され、物性、外観ともに良好な？Ｍ合ポリオキシ
メチレン樹脂組成物を得ることを目的として鋭意研究を
した結果、見掛は比重０． １３〜０．２５の顆粒形Ｂ
繊維状マグネシウムオキシサルフェートとポリオキシメ
チレン樹脂とを特定の割合で配合することにより、混練
時に材料供給口でブリッジすることもなく、従って均一
な物性、外観ともに良好な複合ポリオキシメチレン樹脂
組成物が得られることを見出し、本発明に至った。The present inventors have developed a chemical compound reinforced with fibrous magnesium oxysulfate that has good physical properties and appearance. As a result of intensive research aimed at obtaining an M-polyoxymethylene resin composition, the apparent specific gravity was 0. 13-0.25 granule form B
By blending fibrous magnesium oxysulfate and polyoxymethylene resin in a specific ratio, there is no bridging at the material supply port during kneading, and a composite polyoxymethylene resin composition with uniform physical properties and good appearance can be obtained. It was discovered that the present invention can be obtained.
本発明は、ポリオキシメチレン樹脂６０〜９７重量％と
、見掛は比重０．１３〜０．２５、吸油量２５０〜６０
０ｄ／１００ｇ、繊維径０．１〜２．０μｍ１繊維長１
０〜１００μｍの顆粒形態繊維状マグネシウムオキシサ
ルフェート３〜４０重量％とからなる複合ポリオキシメ
チレン樹脂組成物を提供するものである。The present invention uses a polyoxymethylene resin of 60 to 97% by weight, an apparent specific gravity of 0.13 to 0.25, and an oil absorption of 250 to 60%.
0d/100g, fiber diameter 0.1-2.0μm 1 fiber length 1
The present invention provides a composite polyoxymethylene resin composition comprising 3 to 40% by weight of fibrous magnesium oxysulfate in the form of granules of 0 to 100 μm.
本発明における繊維状マグネシウムオキシサルフェート
は、次の示性式で表される。The fibrous magnesium oxysulfate in the present invention is represented by the following formula.
Ｍ ｇ Ｓ Ｏａ・５ Ｍ ｇ Ｏ・８ Ｈ，０本発明
で用いられる顆粒形態繊維状マグネシウムオキシサルフ
ェートの製造方法については、特願昭６３−８３７０２
号に詳細に記載されている。M g S Oa・5 M g O・8 H,0 The method for producing the granular fibrous magnesium oxysulfate used in the present invention is described in Japanese Patent Application No. 63-83702.
Details are given in the issue.
まず、硫酸マグネシウム水溶液に、水酸化マグネシウム
または酸化マグネシウムを分散させ、１００〜３５０°
Ｃで水熱反応を行う。水熱合成された綿形態の繊維状マ
グネシウムオキシサルフエ−１・中か４、振動篩にて２
５゛０μｍ以上の毛球状のものを除去し、次いで含水率
６５〜８０％に脱水する。この脱水ケーキを押出造粒機
を使って１〜５ｍｍ（φ）に造粒後、乾燥機により水分
を１％以下まで乾燥させる。First, magnesium hydroxide or magnesium oxide is dispersed in a magnesium sulfate aqueous solution, and
A hydrothermal reaction is carried out at C. Hydrothermally synthesized fibrous magnesium oxysulfate in the form of cotton - 1 medium or 4, with a vibrating sieve 2
Hair bulbs of 50 μm or more are removed, and then dehydrated to a moisture content of 65 to 80%. This dehydrated cake is granulated to a size of 1 to 5 mm (φ) using an extrusion granulator, and then dried to a moisture content of 1% or less using a drier.
このようにして得られた顆粒形態繊維状マグネシウムオ
キシサルフェートは、見掛は比重０． １３〜０，２５
、吸油量２５０〜６００ｄ７１００ｇ、繊維径０．１〜
２．０μｍ、繊維長１０〜１００μｍを示すものである
。The granular fibrous magnesium oxysulfate thus obtained has an apparent specific gravity of 0. 13~0,25
, oil absorption 250~600d7100g, fiber diameter 0.1~
2.0 μm, and the fiber length is 10 to 100 μm.
従来の繊維状マグネシウムオキシサルフェートに比べ、
顆粒状であるため、ポリオキシメチレン樹脂との混練時
に、マグネシウムオキシサルフェートがブリッジするこ
となく、混線の初期と後！Ｕ１の組成がほぼ同等である
。さらには、Ｆ１１性および耐衝撃性のバランスが良好
で、外観も良好である。Compared to conventional fibrous magnesium oxysulfate,
Because it is in a granular form, magnesium oxysulfate does not bridge when kneaded with polyoxymethylene resin, allowing both the initial and post cross-contamination! The composition of U1 is almost the same. Furthermore, the balance between F11 properties and impact resistance is good, and the appearance is also good.
顆粒形態繊維状マグネシウムオキシサルフェートは、ポ
リオキシメチレン樹脂に３〜４０重量％、好ましくは４
〜２５重量％含有される。含有量が３重量％未満では開
性が不足し、４０重量％を越えると耐衝撃性が不足する
。The granular form of fibrous magnesium oxysulfate is present in the polyoxymethylene resin in an amount of 3 to 40% by weight, preferably 4% by weight.
Contains ~25% by weight. If the content is less than 3% by weight, the openability will be insufficient, and if the content exceeds 40% by weight, the impact resistance will be insufficient.
本発明におけるポリオキシメチレン樹脂とは、ホルムア
ルデヒドあるいはトリオキサンを、アミン化合物、フッ
化硼素化合物等を触媒として重合して得られるオキシメ
チレン単位を有するポリオキシメチレン樹脂、および、
ホルムアルデヒドあるいはトリオキサンと環状エーテル
（エチレンオキサイド、１．３−ジオキソラン、１，３
．６−トリオキソカンなど）とをルイス酸触媒の存在下
、共重合して得られるオキシメチレン単位とオキシエチ
レン単位からなるポリオキシメチレン樹脂等を含んでい
る。The polyoxymethylene resin in the present invention refers to a polyoxymethylene resin having oxymethylene units obtained by polymerizing formaldehyde or trioxane using an amine compound, a boron fluoride compound, etc. as a catalyst, and
Formaldehyde or trioxane and cyclic ethers (ethylene oxide, 1,3-dioxolane, 1,3
．． 6-trioxocane, etc.) in the presence of a Lewis acid catalyst.
以下に本発明の詳細な説明する。 The present invention will be explained in detail below.
（試験方法） 密度 ＡＳＴＭ Ｄ７９２に準する。(Test method) Density: Conforms to ASTM D792.
曲げ弾性率 ＡＳＴＭ ０７９０に準する。Flexural modulus: Based on ASTM 0790.
Ｉｘｏｄ衝撃強度 ＡＳＴＭ Ｄ２５６に準する。Ixod impact strength according to ASTM D256.
（成形品の外Ｗｔ） 試験片の表面を目視観察した。(Wt outside the molded product) The surface of the test piece was visually observed.
Ｏ艷があり、シルバー、フローマークの発生がなく外観
良好。It has an O-ring, is silver, and has a good appearance with no flow marks.
Δ 艷がなく、表面状態が不均一で外観やや不良。Δ There are no barbs, the surface condition is uneven, and the appearance is somewhat poor.
× 表面に異物のようなものが認められ外観不良。× Foreign matter was observed on the surface and the appearance was poor.
実施例１
見掛は比重０．１８、吸油量５３０Ｉｄ／１００ｇ５平
均繊維径０． ３μｍ、平均繊維長５０μｍの顆粒形態
繊維状マグネシウムオキシサルフェート２５重量％、固
有粘度が１．４７ｄ！／ｇ、６゜ｏｉｒｃｍ％のｌ、
３． ６−トリオキソカンを含んだホルムアルデヒド
と１．３．６−トリオキソカンの共重合によって得られ
たポリオキシメチレン樹脂７５１！量％、および熱安定
剤として、イルガノックス２４５（チバ・ガイギー社）
０．５ＰＨＲ、メラミン０．２ＰＨＲをトライブレンド
し、合計５０ｋｇを２軸押出機のホッパーに投入した。Example 1 The apparent specific gravity is 0.18, the oil absorption is 530 Id/100 g, and the average fiber diameter is 0. Granular fibrous magnesium oxysulfate 25% by weight with an average fiber length of 3 μm and an average fiber length of 50 μm, and an intrinsic viscosity of 1.47 d! /g, 6゜oilcm%l,
3. Polyoxymethylene resin 751 obtained by copolymerizing formaldehyde containing 6-trioxocane and 1.3.6-trioxocane! %, and as a heat stabilizer, Irganox 245 (Ciba Geigy)
0.5 PHR and 0.2 PHR of melamine were triblended and a total of 50 kg was charged into the hopper of a twin screw extruder.
押出機の押出量を５０ｋｇ／Ｈｒに調節し、混練物を最
初の２０分間、中間の２０分間、および最後の２０分間
の３種に分け、それぞれの物性を測定した。物性を第１
表に示す。The extrusion rate of the extruder was adjusted to 50 kg/Hr, and the kneaded material was divided into three types: the first 20 minutes, the middle 20 minutes, and the last 20 minutes, and the physical properties of each were measured. Physical properties first
Shown in the table.
比較例１
実施ＶＡｌにおいて、顆粒形Ｂ３１維状マグネシウムオ
キシサルフェートの代わりに、従来の綿状の繊維状マグ
ネシウムオキシサルフェートを使用した。物性を第２表
に示す。Comparative Example 1 In Example VAl, conventional flocculent fibrous magnesium oxysulfate was used instead of granular B31 fibrous magnesium oxysulfate. The physical properties are shown in Table 2.
（以下余白） 物性 密度 （ｇ／ｃｄ） 曲げ弾性率 （）ｃｇｆ／ｃｉｌ） 第１表 最初の 中間の 最後の ２０分間 ２０分間 ２０分間 １．６３３ １．６３１ ８４．４００ ８４、１００ １ 、６３５ ８４．５００ Ｉｚｏｄ（２３℃）３．２ 衝撃強度 （Ｓｃｇｆ ・ｃｍ／ｃｍ） ３．３ ３．１ 成形品の外観 ○(Margin below) Physical properties density (g/cd) bending modulus ()cgf/cil) Table 1 first middle last 20 minutes 20 minutes 20 minutes 1.633 1.631 84.400 84, 100 1, 635 84.500 Izod (23℃) 3.2 impact strength (Scgf・cm/cm) 3.3 3.1 Appearance of molded product ○
Claims (1)
重０．１３〜０．２５、吸油量２５０〜６００ｍｌ／１
００ｇ、繊維径０．１〜２．０μｍ、繊維長１０〜１０
０μｍの顆粒形態繊維状マグネシウムオキシサルフェー
ト３〜４０重量％とからなる複合ポリオキシメチレン樹
脂組成物。Polyoxymethylene resin 60-97% by weight, apparent specific gravity 0.13-0.25, oil absorption 250-600ml/1
00g, fiber diameter 0.1-2.0μm, fiber length 10-10
A composite polyoxymethylene resin composition comprising 3 to 40% by weight of 0 μm granular fibrous magnesium oxysulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9300589A JPH02272053A (en) | 1989-04-14 | 1989-04-14 | Polyoxymethylene resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9300589A JPH02272053A (en) | 1989-04-14 | 1989-04-14 | Polyoxymethylene resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02272053A true JPH02272053A (en) | 1990-11-06 |
Family
ID=14070269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9300589A Pending JPH02272053A (en) | 1989-04-14 | 1989-04-14 | Polyoxymethylene resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02272053A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01230670A (en) * | 1988-03-11 | 1989-09-14 | Idemitsu Petrochem Co Ltd | Production of thermoplastic resin composition |
-
1989
- 1989-04-14 JP JP9300589A patent/JPH02272053A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01230670A (en) * | 1988-03-11 | 1989-09-14 | Idemitsu Petrochem Co Ltd | Production of thermoplastic resin composition |
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