201022571 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種透明聚氣乙烯管的補強方法，在聚 氣乙烯管（以下也稱為氣乙烯管）之中，特別適合用於藉由 簡單的操作便能回復光化學性（紫外線等）劣化顯著的透明 氣乙烯管的強度的情況。 Φ 【先前技術】 氣乙烯管，有透明管及灰色等的著色管，任一種皆具 有著有用的物理、化學的特性，因此被使用於各式各樣的 領域。又，例如於半導體製造領域中，作為將在嚴苛環境 下所使用的配管材料及用以保護配管之保護管，可目視管 内的透明管被廣泛地使用著。此處，透明氣乙烯管與著色 氣乙烯管相比，較為容易發生光化學性地劣化，於管表面 ❹所發生的龜裂的擴大亦迅速進行，因此不得不增加定期檢 查的頻率而早期替換。特別是對於亦兼作為用來防止在地 震等災害時的洩漏用途的保護管，有必要作早期檢查或使 交換頻率增加》但是為了更換已配管於製造設施中的氣乙 稀管，必須停止運轉的情形亦會發生，然而在全天候工作 中的設施，亦有不可停止運轉的情況。 於專利文獻1或2中，作為以上所述的對策，揭示了 種在氣乙烯管發生龜裂或接近更換時期的時候，將氣乙 201022571 烯管補強而可繼續使用的構成。亦即，專利文獻丨之方法， 係例如將對象的氣乙烯管以表面乾或半圓管等包覆，並於 其外側形成FRP層。專利文獻2之方法，係使用一種在丙 烯酸樹脂乳膠（苯乙烯20〜60重量％、丙烯酸丁酯及/或丙 烯酸2-乙基己酯5〜5〇重量％、α 不飽和羧酸〇〜5 重量。/。之共聚物之乳膠)中混合了芳香族醇而成的塗佈劑， 並將該塗佈劑塗佈於聚氣乙烯薄片等製品上，而對該製品 ❹賦予时候性等。 [專利文獻1 ]日本特開平1 1-336945號公報 [專利文獻2]日本特開2000-2043313號公報 【發明内容】 [發明所欲解決之問題] 在上述專利文獻1的方法中，為了要以表面氈或半圓管 參等包覆氣乙烯管，並於外侧形成FRP層，因此不僅操作性 差’若配管系統呈彎曲之狀態，則亦產生難以適用之處， 在透明氣乙烯管之情況，則會損及透明性。又，配管本身 變重’變得必須進行配管支持的補強等。在專利文獻2之方 法中’丙烯酸樹脂乳膠之調製是繁瑣的，即便對半硬質或 軟質之聚氯乙烯薄片有效，對硬質之氯乙烯管的耐候性賦 予效果，卻不太能夠期待》 由以上所述般的背景來考量，本發明人，先前提案了201022571 VI. Description of the Invention: [Technical Field] The present invention relates to a method for reinforcing a transparent gas-gathered ethylene pipe, which is particularly suitable for use in a gas-gathered ethylene pipe (hereinafter also referred to as a gas-ethylene pipe) The simple operation can restore the case where the photochemical (ultraviolet rays, etc.) deteriorates the strength of the transparent gas-silicon tube. Φ [Prior Art] Gas-ethylene tubes, which have transparent tubes and colored tubes such as gray, have useful physical and chemical properties and are therefore used in a wide variety of fields. Further, for example, in the field of semiconductor manufacturing, as a piping material to be used in a severe environment and a protective tube for protecting a pipe, a transparent tube in the tube can be widely used. Here, the transparent gas ethylene tube is more likely to be photochemically degraded than the colored gas ethylene tube, and the cracking of the surface of the tube is rapidly increased, so that the frequency of periodic inspection has to be increased and replaced early. . In particular, it is necessary to perform early inspection or increase the frequency of exchange for the protection tube used to prevent leakage in the event of a disaster such as an earthquake. However, in order to replace the gas-pipeline that has been piped in the manufacturing facility, it must be stopped. The situation will also occur. However, the facilities in the all-weather work are also incapable of stopping operation. In Patent Document 1 or 2, as a countermeasure against the above, it is disclosed that when the gas-ethylene tube is cracked or close to the replacement period, the gas-filled 201022571 olefin tube is reinforced and can be used continuously. That is, the method of the patent document is, for example, coating a gas-line tube of a subject with a surface dry or semi-circular tube or the like, and forming an FRP layer on the outer side thereof. In the method of Patent Document 2, an acrylic resin latex (20 to 60% by weight of styrene, butyl acrylate and/or 2-ethylhexyl acrylate 5 to 5 % by weight, α-unsaturated carboxylic acid 〇 5) is used. A coating agent obtained by mixing an aromatic alcohol with a latex of a copolymer of the weight of the copolymer is applied to a product such as a polyethylene sheet, and the product is imparted with time or the like. [Patent Document 1] Japanese Laid-Open Patent Publication No. JP-A No. Hei. No. Hei. No. Hei. The surface of the gas-ethylene tube is covered with a surface felt or a semi-circular tube, and the FRP layer is formed on the outer side. Therefore, not only the operability is poor, but if the piping system is in a state of being bent, it is also difficult to apply. In the case of a transparent ethylene tube, It will damage transparency. In addition, the piping itself becomes heavy, and reinforcement such as piping support is required. In the method of Patent Document 2, the preparation of the acrylic resin latex is cumbersome, and even if it is effective for a semi-rigid or soft polyvinyl chloride sheet, it imparts an effect on the weather resistance of a hard vinyl chloride tube, but it is not expected to be The above background is considered, the inventor, previously proposed
201022571 -種技術，即便在以透明氣乙烯管構成的已設置的配管或 該配管的-部份發生龜裂，其劣化比予測更快速地進行的 清况下％不用停止製造設施的運轉，便能維持氣乙稀管 的透明性同時可簡單地進行補強的構成（日本特願2006-163040)。此補強方法，係在透明氯乙婦管的外周面塗佈 聚氣乙烯樹脂系黏著劑這樣的構成。 [用於問題之技術手段] 本發明人’對於在此之前的補強方法，作了進一步檢 討的結果’發現了—種可維持氣乙稀管的透明性同時更能 抑制經費而可簡單地進行補強的構成。亦即，本發明所關 連之透明聚氣乙烯管的補強方法’其特徵為：在透明氣乙 烯管的外周面，塗佈蕈—匍α 1 ^ 之形式的有機溶劑，使該外 周面溶解。在此處，「單-製品之形式的有機溶劑」係意 指不含溶質或其他有機溶劑的單—有機溶劑，只要是在塗 佈於透明聚氣乙烯管時，可溶解該聚氣乙婦管表面的有機 溶劑即可。就有機溶劑之性皙 削往買而s，係以具有親油性與疏 水性者為佳。 係對於作為對象的透明㉟氣乙烯 «上的補強方法 管’基於以下的測試結果，亦 聚氣乙浠樹脂系黏著劑而藉由 膜’塗佈市售品的四氫V»夫味等 管表面溶解而平滑化的情況， 即：相較於塗佈上述先前的 該黏著劑來形成的表面被 的有機溶劑來使該聚氣乙烯 其補強效果更為優異。換言 201022571 之此it形為即便並未含有聚氣乙稀樹脂只要可使表面 平滑即可充分地補強。 以上的補強作用或者補強的主要因素，被認為是：藉 由在透月聚氣乙烯管的外周φ ’塗佈有機溶劑而使該氣乙 烯&外表面’容解’在該氣乙稀管的外周面所產生的微細的 龜裂等會消失；單一有機溶劑，相較於聚氣乙烯樹脂系黏 著劑’其黏性大幅減小，因此可將該聚氣乙烯管外周面均 勻地加以㈣、溶解’沒有產生不均自，而容易變得平滑 等。 在以上的本發明中，前述有機溶劑係設為：塗佈乾燥 於月j述聚氣乙稀管之後，亦可目視管内（中請專利範圍第2 項），而前述有機溶劑，係以乙搭、㈣、乙苯、甲基乙基 醚、二甲苯、環己明、環己炫、二甲趟、二乙驗、四氮咬 喃、甲苯、苯、甲基異丁基酮、甲基乙基酮之任一種(申請 專利範圍第3項）為較佳。 [發明之效果] 申請專利範圍第1項之發明，係藉著使用汎用性的有機 溶劑，對已配管施工後的透明氣乙烯管或施工前之透明氣 乙稀管塗佈乾燥這樣簡單的操作，使氣乙稀管外周面 之傷痕或劣化的部分溶解’藉由伴隨著如此的處理效果， 如實施例所示般，延伸率會恢復至與管成形初期相近的狀 態，對於管表面的耐候性、耐磨耗性、耐擦傷性極為有效。 201022571 申請專利範圍第2項之發明，#太士 μ 73係在有機溶劑塗佈後亦維 持透明狀態，透明管的優點會被維持著。&，在申往專利 範圍第3項之發明中’藉由最適合的有機溶劑，可確：且效 率良好地得到補強效果。 【實施方式】201022571 - A technique in which, even if a pipe provided with a transparent ethylene pipe or a portion of the pipe is cracked, the deterioration is performed more quickly than the pre-measurement, and the operation of the manufacturing facility is not stopped. It is possible to maintain the transparency of the gas-thin tube and to easily reinforce it (Japanese Patent No. 2006-163040). This reinforcing method is a configuration in which a polyethylene-based resin-based adhesive is applied to the outer peripheral surface of a transparent vinyl chloride tube. [Technical means for the problem] The inventors' results of further review of the previous reinforcement method have been found to be able to maintain the transparency of the gas-thin tube while suppressing the cost and can be easily performed. The composition of reinforcement. That is, the method for reinforcing a transparent gas-glycol tube according to the present invention is characterized in that an organic solvent in the form of 蕈-匍α 1 ^ is applied to the outer peripheral surface of the transparent gas tube to dissolve the outer peripheral surface. Here, the "organic solvent in the form of a single-product" means a mono-organic solvent which does not contain a solute or other organic solvent, and can be dissolved as long as it is applied to a transparent polyethylene gas tube. The organic solvent on the surface of the tube can be used. It is preferable to use a lipophilic or water-repellent property in terms of the nature of the organic solvent. Based on the following test results, the transparent 35-glycol-based "reinforcing method tube" as a target is also coated with a commercially available product such as tetrahydro-V»fused by a film. When the surface is dissolved and smoothed, the reinforcing effect of the polyethylene gas is further improved as compared with the organic solvent on the surface formed by applying the above-mentioned adhesive. In other words, 201022571 is shaped like this, even if it does not contain a polyethylene resin, it can be sufficiently reinforced by smoothing the surface. The above-mentioned reinforcing effect or main factor of reinforcement is considered to be: by the application of an organic solvent in the outer periphery of the vapor-permeable polyethylene tube, the external surface of the gas & the outer surface is 'capacited' in the gas-thin tube The fine cracks and the like generated on the outer peripheral surface disappear; the single organic solvent has a much smaller viscosity than the gas-polymerized vinyl resin adhesive, so the outer peripheral surface of the gas-glycol tube can be uniformly distributed (4) , dissolve 'does not produce unevenness, and is easy to become smooth. In the above aspect of the invention, the organic solvent is formed by drying and drying the polyethylene pipe after the month, and may also be visually inspected (the second item of the patent scope), and the organic solvent is B. Rasp, (iv), ethylbenzene, methyl ethyl ether, xylene, cyclohexamine, cyclohexyl, dimethylhydrazine, diacetyl, tetrazide, toluene, benzene, methyl isobutyl ketone, methyl Any one of ethyl ketones (Patent No. 3 of the patent application) is preferred. [Effects of the Invention] The invention of claim 1 is a simple operation of applying a general-purpose organic solvent to a transparent gas ethylene pipe after piping construction or a transparent gas-thickness pipe before construction. By dissolving the flaw or the deteriorated portion of the outer peripheral surface of the gas-thin tube, by the effect of such treatment, as shown in the examples, the elongation is restored to a state close to the initial stage of tube formation, and the surface of the tube is weather-resistant. Sex, abrasion resistance and scratch resistance are extremely effective. 201022571 The invention of the second application of the patent scope, #太士 μ 73 is also maintained in a transparent state after application of an organic solvent, and the advantages of the transparent tube are maintained. & In the invention of claim 3 of the patent application, by the most suitable organic solvent, it is confirmed that the reinforcing effect is obtained with good efficiency. [Embodiment]
本發明之補強方法，係以配管施工後的透明氣乙稀管 或施工前的透明氣乙締管為對象’且係-種藉由在該氣乙 婦管上塗佈有機溶劑，將外周面之細微的傷痕及由目視難 以確認的傷痕或劣化加以修復或補強的構成。此處，聚氣 乙稀管’係以氣乙稀樹脂或聚氣乙烯作為主原料，且因應 必要而添加有改良㈣安定劑（用於防止成料或加工時 之劣化的物質)等而成形者，例如日本工業規格JIS K674卜K6742所規定的硬質聚氣乙烯管。又，本發明之補 =方法無論是透明氣乙稀管及添加顏料而成的著色氣乙稀 管皆為有用的’而由於透明氣乙烯管，相較於著色氣乙稀 管’較容易發生光化學性地劣化，因此成為在對透明氣乙 烯管的適用方面特別適合者。 順帶提，氣乙烯管的傷痕或龜裂，有舆梱包材料的 磨擦所U成者、搬運時的震動而造成配管彼此的磨擦所造 成者、伴隨著配管施工的磨擦所造成者等。又，氣乙烯管 的劣化’有長期接受紫外線等所造成者，以及氣溫、室溫 7 201022571 等溫度環境所造成者等。然後，就氣乙烯管的特性而言， 亦已知因傷痕或劣化造成延伸率（％)、拉伸強度 (kgf/cm3)、衝擊強度（kgf/cm3)降低。另外，氣乙烯管之製 造業者，由延伸率、拉伸強度、衝擊強度這3種項目來評估 劣化狀態，3種項目之中，根據由劣化所導致顯著地降低的 延伸率來算出此氣乙烯管的殘存率，以殘存率成為⑽〜 50%’定為建議更換時期。由這樣的情形看來，在後述實施 例中’係由延伸率求得殘存率而作評估。 又，本發明人，藉由實驗確認了：在管的斷裂過程中， 表面的傷痕最終會斷裂。對於正在劣化的管，亦確認了因 紫外線等造成表面變成白色之後，在表面的一部分，在配 管搬遷時或施工時受到的目視難以確認的傷痕，會隨著時 間經過變成楔狀龜裂而斷裂。透明氯乙烯管若變成白色， 雖然相較於透明時更可防止紫外線之透過，但是其耐擦傷 性或磨耗性等耐久性降低，龜裂變得容易發生。在本發明 中，作為如此的管的傷痕、龜裂或劣化的對策及耐久性的 復原對策，係將有機溶劑塗佈於氣乙烯管的外周面。這是 因為，若將有機溶劑塗佈於管外周面，則管表面的微細的 龜裂和其他擦傷會變得平滑，成為斷裂的主要因素或開端 的微細龜裂會消失，可解除龜裂的發生及擴大之虞於未然。 此處，就有機溶劑而言，可列舉乙醛、丙酮、乙笨、 甲基乙基醚、二曱笨、環己酮、環己烷、二曱醚、二乙韃、 201022571 四氫夫嗔、甲苯、苯、甲基異丁基嗣、曱基乙基酮等。 [實施例] 已知氣乙婦材料之經時變化，可利用測定延伸率而判 疋可奶為八要延伸率能恢復，則氣乙烯管的強度也會恢 復於疋，在實施例中，如表1所彙整般，首先使用近似於 太陽光的榮光燈’對複數的透明氯乙稀管強制性地照射紫 外線（使用促進耐候性測試機之型式：別以試驗機股份有限 公司製之Super Xenon Weather Meter SX75，螢光燈紫外 線照射強度6〇W/m2)既定時間，藉此使其劣化。其後，將對 透明氣乙烯管而言為有機溶劑的四氫呋喃塗佈於該氣乙烯 管的外周面上而成者、將與先前巾請（日本特願2006- 163040)相同的氯乙烯樹脂黏著劑（旭有機材工業股份有限 公司製之AV黏著劑32)塗佈於該氣乙烯管的外周面上而成 者、以及將沒有任何塗佈者，進行拉伸測試，調查延伸率 的恢復狀況。另外，拉伸測試及塗佈作業係於常溫（2〇艺〜 2 5 °C )進行。 所使用的四氫呋喃，係關東化學股份有限公司製之特 級品，並且純度（6〇為99.5%以上，密度（2〇。(：）〇.884〜 〇.889g/m卜又，前述拉伸測試，係以依據日本工業規格 的拉伸測試法K7113的測試，使用拉伸測試機之型式：東洋 BALDWIN股份有限公司製的TENSIL0N萬能測試機，在常溫狀 態下測量斷裂時之延伸（mm)。 9 201022571 具體而言，準備在相同條件 丨卞及時期所製作出來的相同 形狀新的測試管3 〇根，作為嘲丨4 很彳乍為測喊用透明氣乙烯管（全長為 100mm、外徑為 48min、内# 盔 /11 、 内牷為4lmm)，每6根分成一個群組。 在下述表1之中，試樣編號i〜5 具^成群組的組編號，並 且以6根為一組而構成。 試樣編號1是不照射紫外線的透明氣乙稀管並且也不 塗佈有機溶劑的群組，試樣編號？ θ a俅确铌2疋不照射紫外線的透明氯 乙烯管而在管外周面塗佈四盪 主抑以虱夫喃的群組。試樣編號3是照 射紫外線600小時（此時間相當於榮光燈照射時間12年以 上）’而不塗佈有機溶劑的群組，試樣編號4是照射紫外線 600小時之後’在管外周面塗佈四氫吱喃的群組。試樣編號 5是以上述先前申請的發明例照射紫外線6〇〇小時之後塗 佈氣乙烯樹脂黏著劑的群組。在管外周面以相同要領塗 藝佈，且塗佈次數任一者皆為丄次（塗膜厚度為a如以下）。 又’表1之延伸、延伸率、延伸率之殘存率是6根氣乙烯 管的平均值。 此處，延伸率（％)，係由標線間距離义及斷裂時之標線 間距離X卜藉由式i而算出。標線間距離X係由氣乙烯管全 長（1 OOmin)減去兩側之把持部位長度（32. 5x2 = 65mm)而得 之值（35mm)。斷裂時之標線間距離XI為測量值。 延伸率=((Χ1-Χ)/Χ)χ100.....(式 υ 又延伸率之殘存率（％)，係以試樣編號1之延伸率164% 201022571 為基準（此時將延伸率之殘存率換算為100%)，算出詞(樣編 號2〜5之各延伸率之情況。 [表1] 試樣編號 有機溶劑之有無 (名稱） 塗佈次數 紫外線照射時間 hr 平均之延伸 mm 延伸率 % 延伸之殘存率 % 試樣1 無 0 0 92 164 100〜 試樣2 四氩呋喃 1 0 109 210 128 實施例 試樣3 無 0 600 55 58 35 比較例 試樣4 四氫0夫喃 1 600 107 206 126 實施例 試樣5 AV黏著劑32 1 600 96 173 106 比較例 (評估）由以上的測試結果可知下述現象。The reinforcing method of the present invention is based on a transparent gas Ethylene tube after piping construction or a transparent gas B-pipe before construction, and the system is coated with an organic solvent on the air tube to coat the outer peripheral surface. The fine flaws and the repair or reinforcement of the scars or deterioration that are difficult to visually confirm. Here, the gas-smelting tube is formed by using ethylene-ethylene resin or polyethylene-gas as a main raw material, and if necessary, an improved (four) stabilizer (a substance for preventing deterioration during forming or processing) is added. For example, a rigid gas-gathered ethylene pipe specified in Japanese Industrial Standard JIS K674, K6742. Moreover, the complementary method of the present invention is useful for both the transparent gas-thin tube and the colored gas-thin tube which is added with the pigment, and is more likely to occur due to the transparent gas-ethylene tube than the colored gas-thin tube. Since it is photochemically deteriorated, it is particularly suitable for application to a transparent gas ethylene tube. Incidentally, the scratches or cracks of the ethylene-ethylene tube are caused by the friction of the bag material, the vibration caused by the vibration during transportation, the friction between the pipes, and the friction caused by the piping construction. In addition, the deterioration of the ethylene-ethylene tube is caused by long-term exposure to ultraviolet rays, and the temperature and temperature, and the temperature environment such as room temperature 7 201022571. Then, in terms of the characteristics of the gas-ethylene tube, it is also known that the elongation (%), the tensile strength (kgf/cm3), and the impact strength (kgf/cm3) are lowered due to scratches or deterioration. In addition, the manufacturer of the ethylene-ethylene tube evaluates the deterioration state from three items of elongation, tensile strength, and impact strength, and among the three types of items, the ethylene is calculated based on the elongation which is remarkably lowered by the deterioration. The residual rate of the tube is determined to be a replacement period with a residual rate of (10) to 50%. From such a situation, it is evaluated in the following-described embodiment that the residual ratio is obtained from the elongation. Further, the inventors confirmed by experiments that the surface flaws eventually break during the breakage of the tube. In the case of the tube which is deteriorating, it is confirmed that the surface is white after the ultraviolet ray or the like, and a part of the surface, which is difficult to confirm when the pipe is relocated or during construction, becomes a wedge-shaped crack and breaks over time. . When the transparent vinyl chloride tube is white, it is more resistant to the transmission of ultraviolet rays than when it is transparent. However, durability such as scratch resistance and abrasion resistance is lowered, and cracking is likely to occur. In the present invention, as a measure for the damage, cracking, or deterioration of the tube and a measure for restoring the durability, the organic solvent is applied to the outer peripheral surface of the ethylene oxide tube. This is because when the organic solvent is applied to the outer peripheral surface of the tube, fine cracks and other scratches on the surface of the tube become smooth, and the main factor of the fracture or the fine crack at the beginning disappears, and the crack can be removed. The occurrence and expansion of the future is not the case. Here, as the organic solvent, acetaldehyde, acetone, ethyl bromide, methyl ethyl ether, dioxane, cyclohexanone, cyclohexane, dioxane, diethyl hydrazine, 201022571 tetrahydrofuran can be cited. , toluene, benzene, methyl isobutyl hydrazine, mercapto ethyl ketone, and the like. [Examples] It is known that the time-dependent change of the material of the gas can be determined by measuring the elongation, and the strength of the gas-ethylene tube can be restored to the enthalpy, in the embodiment, As shown in Table 1, first, use a glory light similar to sunlight to force ultraviolet rays to a plurality of transparent vinyl chloride tubes (use a type that promotes weather resistance tester: Do not use Super Machine Co., Ltd. Xenon Weather Meter SX75, fluorescent light UV intensity 6 〇 W / m2) for a given time, thereby making it deteriorate. Then, tetrahydrofuran, which is an organic solvent, is applied to the outer peripheral surface of the gas-silicon tube, and the same vinyl chloride resin as the previous towel (Japanese Patent Application No. 2006-163040) is adhered. The agent (AV adhesive 32 manufactured by Asahi Organic Materials Co., Ltd.) was applied to the outer peripheral surface of the gas-made ethylene tube, and the coating test was carried out without any coating, and the recovery of the elongation was investigated. . In addition, the tensile test and the coating operation were carried out at room temperature (2 〇 to 2 5 ° C). The tetrahydrofuran used is a special grade product manufactured by Kanto Chemical Co., Ltd., and the purity (6〇 is 99.5% or more, density (2〇. (:)〇.884~ 〇.889g/mb, the aforementioned tensile test) According to the test of the tensile test method K7113 according to the Japanese Industrial Standard, the tensile tester type: TENSIL0N universal tester manufactured by Toyo BALDWIN Co., Ltd. is used to measure the elongation at break (mm) under normal temperature conditions. 201022571 Specifically, a new test tube with the same shape and the same shape prepared in the same conditions and time is prepared. As a mocking 4, it is a transparent gas-based ethylene tube (full length 100mm, outer diameter is 48min, inner #helmet/11, inner raft is 4lmm), every 6 is divided into one group. In the following Table 1, sample numbers i~5 have group numbers of groups, and 6 are one The sample number 1 is a group of transparent gas-thin tubes that are not irradiated with ultraviolet rays and is not coated with an organic solvent, and the sample number is θ a 俅 2 透明 2 透明 透明 疋 疋 疋 疋The outer surface of the tube is coated with four waves. Group No. 3 is a group that irradiates ultraviolet rays for 600 hours (this time corresponds to a glory lamp irradiation time of 12 years or more) ' without applying an organic solvent, and sample No. 4 is after irradiating ultraviolet rays for 600 hours. The outer peripheral surface of the tube was coated with a group of tetrahydrofuran. Sample No. 5 was a group in which a gas-vinyl resin adhesive was applied after irradiating ultraviolet rays for 6 hours in the above-mentioned prior art example. The same method was applied to the outer peripheral surface of the tube. The coated fabric is coated with any of the number of coatings (the coating film thickness is a as follows). Further, the residual ratio of elongation, elongation, and elongation of Table 1 is the average value of six ethylene-ethylene tubes. Here, the elongation (%) is calculated from the distance between the lines and the distance X between the lines at the time of the break by the formula i. The distance X between the lines is subtracted from the full length of the ethylene tube (100 min). The value of the holding part length (32. 5x2 = 65mm) on both sides (35mm). The distance XI between the markings at the time of the break is the measured value. Elongation = ((Χ1-Χ)/Χ)χ100.... (υ) The residual rate (%) of the elongation is based on the elongation of sample No. 1 164% 201022571 (this The residual rate of the elongation was converted to 100%), and the results of the words (the extensions of the sample numbers 2 to 5) were calculated. [Table 1] Sample No. The presence or absence of the organic solvent (name) The number of times of application The ultraviolet irradiation time hr average Extension mm Elongation % Extension Residual % % Sample 1 None 0 0 92 164 100~ Sample 2 Tetra Argon Furan 1 0 109 210 128 Example Sample 3 No 0 600 55 58 35 Comparative Example Sample 4 Tetrahydrogen 0 Fragman 1 600 107 206 126 Example Sample 5 AV Adhesive 32 1 600 96 173 106 Comparative Example (Evaluation) From the above test results, the following phenomenon was observed.
首先’由试樣編號3與試樣編號4，可知延伸率之殘存 率，若不塗佈有機溶劑則成為35%，而塗佈有機溶劑的情 況’與試樣編號3相比，可恢復9成的程度。此情形可認為 是藉著使用四氫呋喃來作為有機溶劑，可使得紫外線等造 成的劣化後的配管恢復。 由5式樣編波4與试樣編號5，可知延伸率之殘存率，相 參對於氣乙烯樹脂黏著劑成為106%而言，塗佈有機溶劑的情 況與試樣編號5相比可恢復2成的程度。此情形可認為比起 氣乙烯樹脂黏著劑，有機溶劑更能恢復。 由S式樣編號1與試樣編號2，可知在沒有照射紫外線的 管上塗佈有機溶劑的情況，與試樣編號1相比，可恢復3成 的程度。此情形推定為僅微細傷痕之狀態恢復，可知能夠 恢復至比初期狀態（於管成形後作為市售品處理具有伴隨 著運送或施工等的微細傷痕之狀態）更加適宜的管成形狀 201022571 亦印 態。可認為亦可使得測試管製作所造成的微細傷痕 配管施工時等所造成的微細傷痕的管恢復。 又’試樣編號2與試樣編號4，其延伸率之殘存率幾乎 相同。此情形是紫外線劣化僅在管表面（僅透明氣乙烯管表 面變色所造成的），可知將有機溶劑塗佈於管表面的情況， 試樣編號2之管表面的傷痕與試樣編號4之管表面的紫外線 劣化任一者，皆同等地恢復。 又，以上的實施例並未對本發明作任何制約。 【圖式簡單說明】 無 【主要元件符號說明】 無 12First, from Sample No. 3 and Sample No. 4, it is understood that the residual ratio of the elongation is 35% if the organic solvent is not applied, and the case where the organic solvent is applied can be recovered as compared with Sample No. 3. The degree of formation. In this case, it is considered that the use of tetrahydrofuran as an organic solvent can restore the deteriorated piping caused by ultraviolet rays or the like. From the pattern 5 of the pattern 5 and the sample No. 5, the residual ratio of the elongation was found, and the phase difference was 106% for the gas-vinyl resin adhesive, and the case where the organic solvent was applied was recovered by 20% compared with the sample No. 5. Degree. In this case, it is considered that the organic solvent is more recoverable than the gas-based vinyl adhesive. From the S pattern No. 1 and the sample No. 2, it was found that the organic solvent was applied to the tube which was not irradiated with ultraviolet rays, and it was possible to recover 30% of the sample number 1 as compared with the sample No. 1. In this case, it is estimated that the state of the micro-scars is restored, and it is found that it is possible to return to the shape of the tube shape 201022571 which is more suitable than the initial state (the state in which the product is treated with a fine flaw such as transportation or construction after the tube is formed). state. It is considered that the tube of the micro-scarring caused by the construction of the test tube can be recovered by micro-injury caused by the construction of the test tube. Further, Sample No. 2 and Sample No. 4 have almost the same residual ratio of elongation. In this case, the ultraviolet ray is deteriorated only on the surface of the tube (only the surface of the transparent gas tube is discolored), and it is known that the organic solvent is applied to the surface of the tube, and the surface of the tube of sample No. 2 is damaged with the tube of sample No. 4. Any of the ultraviolet rays on the surface is restored in the same manner. Further, the above embodiments do not impose any restrictions on the present invention. [Simple diagram description] None [Main component symbol description] None 12