JPH08871B2 - Radiation resistant resin composition - Google Patents
Radiation resistant resin compositionInfo
- Publication number
- JPH08871B2 JPH08871B2 JP3253602A JP25360291A JPH08871B2 JP H08871 B2 JPH08871 B2 JP H08871B2 JP 3253602 A JP3253602 A JP 3253602A JP 25360291 A JP25360291 A JP 25360291A JP H08871 B2 JPH08871 B2 JP H08871B2
- Authority
- JP
- Japan
- Prior art keywords
- resin composition
- resistant resin
- radiation resistant
- radiation
- radiation resistance
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電線・ケーブル（以
下、単にケーブルと称す）の外被等として使用する耐放
射線性樹脂組成物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiation resistant resin composition used as an outer cover or the like of electric wires / cables (hereinafter, simply referred to as cables).
【０００２】[0002]
【従来の技術及びその課題】原子力発電所等の放射線環
境下で使用されるケーブルは耐放射線性が要求される。
特に、核燃料の取扱いや炉心の整備のためのマニプレー
タの操作用制御ケーブルは、極めて高い放射線に曝され
るのでより高い耐放射線性が要求される。2. Description of the Related Art A cable used in a radiation environment such as a nuclear power plant is required to have radiation resistance.
In particular, the control cables for manipulator operations for handling nuclear fuel and maintaining the core are exposed to extremely high radiation, and therefore higher radiation resistance is required.
【０００３】この耐放射線性は主に外被（シース）によ
って負い、この種のケーブルの外被用高分子材料とし
て、従来から、実開昭６０−８４０２４号公報等に示さ
れるポリエーテルエーテルケトン（以下、ＰＥＥＫとい
う）がよく知られている。しかし、このＰＥＥＫは高価
であり、加工性が悪いという問題がある。This radiation resistance is mainly borne by an outer sheath (sheath), and as a polymer material for the outer sheath of a cable of this type, the polyether ether ketone disclosed in Japanese Utility Model Publication No. 60-84024 has been conventionally used. (Hereinafter referred to as PEEK) is well known. However, this PEEK is expensive and has a problem of poor workability.
【０００４】そこで、この発明は、高い耐放射線性を持
ちながら、安価にして加工性に豊んだ耐放射線性樹脂組
成物を提供することを課題とする。Therefore, an object of the present invention is to provide a radiation resistant resin composition which has high radiation resistance, is inexpensive, and has excellent processability.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、この発明にあっては、クロロスルホン化ポリエチレ
ン（以下、ＣＳＭと略記する）１００重量部に、下記の
一般式で表されるベンゾフェノン系化合物を２〜７０Ｐ
ＨＲ添加してなる構成としたのである。In order to solve the above problems, according to the present invention, 100 parts by weight of chlorosulfonated polyethylene (hereinafter abbreviated as CSM) is added to benzophenone represented by the following general formula. 2 to 70P
That is, the structure is made by adding HR.
【０００６】[0006]
【化２】 Embedded image
【０００７】上記ベンゾフェノン系化合物が上記範囲よ
り少ないときは放射線を受けることによって伸び率が低
下して硬化する。反対に上記範囲を越えるとブルーム
（表面への折出）が起こるので外観上好ましくない。When the amount of the above-mentioned benzophenone compound is less than the above range, the elongation is lowered and the resin is cured by receiving radiation. On the other hand, if it exceeds the above range, blooming (protrusion to the surface) occurs, which is not preferable in appearance.
【０００８】上記ＣＳＭとしては、ハイパロン＃４０
（デュポン社製 商品名）、ベンゾフェノン系化合物と
しては、スミソーブ１３０、スミソーブ１１０などをそ
れぞれ挙げることができる。The CSM is Hypalon # 40.
Examples of the benzophenone-based compound (trade name manufactured by DuPont) include Sumisorb 130 and Sumisorb 110.
【０００９】[0009]
【作用】このように構成するこの発明に係る樹脂組成物
は、ベンゾフェノン系化合物の上記所要量の添加によっ
て耐放射線性が向上する。The resin composition according to the present invention thus constructed has improved radiation resistance by the addition of the required amount of the benzophenone compound.
【００１０】[0010]
【実施例】表１で示す配合割合（重量部）で実施例１〜
４及び比較例１〜３の樹脂組成物を混練り調製した。そ
の混練り調製は、一次混練として、１５０mmφの試験ロ
ールにより架橋剤を入れずに、１２０℃、２０分間混練
し、次に二次混練として、温度を５０℃に降し、架橋剤
を投入して１０分間混練した。[Examples] Examples 1 to 1 with the compounding ratio (parts by weight) shown in Table 1
4 and the resin compositions of Comparative Examples 1 to 3 were kneaded and prepared. The kneading was carried out by first kneading with a 150 mmφ test roll without kneading the cross-linking agent at 120 ° C. for 20 minutes, and then as the second kneading, lowering the temperature to 50 ° C. and adding the cross-linking agent. And kneaded for 10 minutes.
【００１１】こうして得た樹脂組成物を、厚さ：１mm、
内側寸法：縦１５０mm×横１５０mmの金枠に入れ、１５
０kgf ／cm2 ×１５０℃×３０分でプレス架橋した後、
加圧冷却し、厚さ１mm×縦１５０mm×横１５０mmの試験
シートを得た。The resin composition thus obtained has a thickness of 1 mm,
Inner dimensions: 15mm x 150mm, put in a metal frame, 15
After press-crosslinking at 0 kgf / cm 2 × 150 ° C. × 30 minutes,
After pressure cooling, a test sheet having a thickness of 1 mm × a length of 150 mm × a width of 150 mm was obtained.
【００１２】このシートの仕上り外観（プルームの有
無）を見るとともに、γ線各照射量（60Ｃｏを線源と
し、線量率０．８ＭＲ／ｈｒ、大気中、常温下）におけ
る伸び（Ｅｌ）及び引張強度（Ｔｓ）を測定した結果を
表１下欄に示す。表中、Ｅｌ、Ｔｓの単位は、％、kg／
mm2 であり、丸と二重丸は良好、×は不良、ブランクは
測定不能を示し、「オリジナル」はγ線無照射のもので
ある。引張試験はＪＩＳＫ６３０１により引張速度２０
０mm／ｍｉｎで行った。Looking at the finished appearance (presence or absence of plume) of this sheet, the elongation (El) at each γ-ray irradiation dose ( 60 Co as a radiation source, dose rate 0.8 MR / hr, in air, at room temperature) and The results of measuring the tensile strength (Ts) are shown in the lower column of Table 1. In the table, the units of El and Ts are% and kg /
a mm 2, circle and double circle good, × is bad, the blank represents the unmeasurable, "original" is of γ-ray-free illumination. Tensile speed is 20 according to JISK6301
It was performed at 0 mm / min.
【００１３】[0013]
【表１】 [Table 1]
【００１４】この試験結果から、この発明に係る樹脂組
成物が、その特定配合割合においてブルームの発生もな
く、仕上り性、耐放射線性で優れていることが理解でき
る。このため、耐放射線性の電線・ケーブルの絶縁被覆
として充分に満足できる。From this test result, it can be understood that the resin composition according to the present invention is excellent in finishability and radiation resistance without generation of bloom at the specific blending ratio. For this reason, it can be sufficiently satisfied as an insulating coating for radiation-resistant wires and cables.
【００１５】[0015]
【発明の効果】この発明は、以上のように構成したの
で、ブルームの発生を抑えて仕上り性の劣化を招くこと
なく、耐放射線性が向上する。Since the present invention is configured as described above, the radiation resistance is improved without suppressing the generation of blooms and causing the deterioration of the finishability.
Claims (1)
量部に、下記の一般式で表されるベンゾフェノン系化合
物を２〜７０ＰＨＲ添加してなる耐放射線性樹脂組成
物。 【化１】 1. A radiation resistant resin composition obtained by adding 2 to 70 PHR of a benzophenone compound represented by the following general formula to 100 parts by weight of chlorosulfonated polyethylene. Embedded image
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3253602A JPH08871B2 (en) | 1991-10-01 | 1991-10-01 | Radiation resistant resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3253602A JPH08871B2 (en) | 1991-10-01 | 1991-10-01 | Radiation resistant resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0593115A JPH0593115A (en) | 1993-04-16 |
| JPH08871B2 true JPH08871B2 (en) | 1996-01-10 |
Family
ID=17253664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3253602A Expired - Lifetime JPH08871B2 (en) | 1991-10-01 | 1991-10-01 | Radiation resistant resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08871B2 (en) |
-
1991
- 1991-10-01 JP JP3253602A patent/JPH08871B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0593115A (en) | 1993-04-16 |
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