TW542859B - Concrete reinforcing fiber - Google Patents
Concrete reinforcing fiber Download PDFInfo
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- TW542859B TW542859B TW87121653A TW87121653A TW542859B TW 542859 B TW542859 B TW 542859B TW 87121653 A TW87121653 A TW 87121653A TW 87121653 A TW87121653 A TW 87121653A TW 542859 B TW542859 B TW 542859B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/0625—Polyalkenes, e.g. polyethylene
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
Abstract
Description
542859 A7 __—____B7 __ 五、發明説明（1 ) 發明領域 本發明係關於混凝土補強用纖維，其具有絕佳混凝土 補強效果。更確切地，本發明關於混凝土補強用纖維其適 用於混凝土模製品，主要在建築材料如建築板與瓦。 發明背景 硬化的水泥大量用於建築，土木工程，此係由於其絕 佳性質如抗壓強度，耐久性與不可燃性，以及低價格。然 而它也伴隨著缺點如其係脆性物質故有明顯較低的彎曲耐 受力’且其撞擊耐受力弱故當承受伸張應力或彎曲應力， 將易於破斷或發生裂縫。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁)542859 A7 __—____ B7 __ V. Description of the Invention (1) Field of the Invention The present invention relates to fibers for concrete reinforcement, which have excellent concrete reinforcement effects. More specifically, the present invention relates to fibers for reinforcing concrete, which are suitable for use in concrete moldings, mainly in building materials such as building boards and tiles. BACKGROUND OF THE INVENTION Hardened cement is widely used in construction and civil engineering due to its excellent properties such as compressive strength, durability and nonflammability, and low price. However, it is also accompanied by disadvantages such as that it is a brittle substance and therefore has a significantly lower bending resistance 'and its impact resistance is weak. When it is subjected to tensile or bending stress, it will easily break or crack. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (Please read the precautions on the back before filling this page)
回顧克服該問題之方法，近年來已提出使用各種無機 纖維及有機合成纖維作爲水泥補強纖維。它們未具有令人 滿意的混凝土補強效果，因爲其性質未能有效地被使用， 或其缺點使其不具有充分的效果。例如，聚烯烴纖維可以 有利地用於混凝土補強，因爲其具有耐鹼性與耐熱性，此 外可以使用熱壓釜硬化或蒸汽硬化。另方面聚烯烴纖維具 有疏水性表面，干擾了其與親水性水泥基質間良好的黏著 ;且在水泥漿中具有較差的分散性。先前技藝中爲克服這 些問題，已知的一項爲改良與水泥間親合性的技術，經由 以界面活性劑或其類似物處理纖維之表面〔J P - A - 4 一 2 1 5 5 6 (用於此處之術語' J P — A 〃意指'' unexamined published Japanese patent ap p 1 i c a t i ο η), J P — A —5 — 17〇497，PCT W〇 9 0/0 6902 及 本紙張尺度適用中國國家標準（CNS ) A4規格（21 OX297公釐）_ 4 - 經濟部中央標準局員工消費合作社印製 542859 A7 -______B7 五、發明説明& ) 其類似者〕。這些文獻中所述之纖維其具有良好的混凝土 補強效果’但其混凝土模製品在彎曲強度與撞擊強度方面 仍有再改進的需求。 雖然近年來已提出各種改良方法，如在纖維分散性或 親合性之改良；由不規則形狀纖維截面而改良補強效果， 在纖維之表面形成突出物或結點，或在表面形成另一組份 之薄膜；纖維強度之改良；在纖維中捏合另一組份；及就 原材料特別化，但這些改良尙未令人滿意。 本發明槪要 本發明之目標在提供混凝土補強纖維，其具有高的撞 擊吸收能量，與水泥基材具有改良的親合性與分散性，且 可造成混凝土模製品改良之彎曲強度，抗壓強度及特別在 撞擊強度之改良。 爲達到以上之目標，本篇之發明者執行了廣泛的硏究 。結果發現，基於介於聚烯烴纖維的物理性質與混凝土補 強之關聯，基於聚烯烴纖維其具有高的保持強度與伸長率 及至少一項預先決定的楊氏模數，其可有效地改良混凝土 模製品彎曲強度與撞擊強度，且伴隨上述條件之同時，以 C 8 - 2 2較高酯肪酸鹽黏著於聚烯烴纖維之表面可增加纖維 之撞擊吸收能量，改良與在水泥基材之親合性與分散性， 且在混凝土模製品的彎曲強度與抗壓強度上造成戲劇化之 改良，特別是撞擊強度，該聚烯烴纖維適合作爲混凝土補 強纖維，且使用此纖維形成之混凝土模製品具有絕佳撞擊 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐1 -5- (請先閱讀背面之注意事項再填寫本頁)Reviewing the methods to overcome this problem, various inorganic fibers and organic synthetic fibers have been proposed in recent years as cement reinforcing fibers. They do not have a satisfactory concrete reinforcement effect because their properties have not been effectively used, or their shortcomings have made them insufficient. For example, polyolefin fibers can be advantageously used for concrete reinforcement because of their alkali resistance and heat resistance. In addition, autoclave hardening or steam hardening can be used. On the other hand, polyolefin fibers have a hydrophobic surface, which interferes with their good adhesion to the hydrophilic cement matrix; and it has poor dispersibility in cement slurry. To overcome these problems in the prior art, a technique known to improve the affinity with cement is to treat the surface of the fiber with a surfactant or the like [JP-A-4-2 1 5 5 6 ( As used herein, the term 'JP — A 〃 means'' unexamined published Japanese patent ap p 1 icati ο η), JP — A — 5 — 17〇497, PCT W〇9 0/0 6902 and this paper standard apply China National Standard (CNS) A4 Specification (21 OX297 mm) _ 4-Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 542859 A7 -______ B7 V. Invention Description &) Similar]. The fibers described in these documents have good concrete reinforcement effects', but there is still a need for further improvement in the bending strength and impact strength of their concrete moldings. Although various improvement methods have been proposed in recent years, such as the improvement of fiber dispersion or affinity; the reinforcing effect is improved by irregularly shaped fiber cross sections, forming protrusions or nodes on the surface of the fiber, or forming another group on the surface Part of the film; improvement of fiber strength; kneading another component in the fiber; and specialization of raw materials, but these improvements are not satisfactory. The present invention requires that the object of the present invention is to provide a reinforced concrete fiber, which has high impact absorption energy, has improved affinity and dispersibility with the cement substrate, and can result in improved bending strength and compressive strength of concrete moldings. And especially in the improvement of impact strength. In order to achieve the above goals, the inventors of this article performed extensive research. It was found that based on the correlation between the physical properties of polyolefin fibers and concrete reinforcement, based on the high retention strength and elongation of polyolefin fibers and at least one predetermined Young's modulus, it can effectively improve concrete molds. The bending strength and impact strength of the product, along with the above conditions, adhere to the surface of the polyolefin fiber with C 8-2 2 higher ester fatty acid can increase the fiber's impact absorption energy, improve the affinity with the cement substrate And dispersion, and cause dramatic improvements in the bending strength and compressive strength of concrete moldings, especially impact strength. The polyolefin fiber is suitable as a concrete reinforcing fiber, and the concrete moldings formed using this fiber have an absolute The size of this paper is suitable for China National Standard (CNS) A4 (210X297 mm 1 -5- (Please read the precautions on the back before filling this page)
、1T 經濟部中央標準局員工消費合作社印製 542859 Μ ____ Β7 五、發明説明& ) C 8 - 2 2較高酯肪酸鹽黏附於聚烯烴纖維而其用量爲〇 . i 至5 %以重量計，相對於聚烯烴纖維之重量。 本發明觀點較佳也在提供一種混凝土補強纖維，其中 包含聚烯烴纖維其具有單纖維強度至少7 g / d，單纖維 伸長率至少7 〇%且楊氏模數至少4 5 0 k g f/mm2， 且上述較高酯肪酸鹽黏附於聚烯烴纖維而其用量爲〇.1 至5 %以重量計，相對於聚烯烴纖維之重量。作爲較高酯 肪酸鹽，可使用至少一種鹼性金屬鹽係選包含鈉鹽、鋰鹽 及鉀鹽之群組。供選擇地，可使用烷胺鹽典型如一級胺鹽 、二級胺鹽、或三級胺鹽或烷基銨鹽如四級銨鹽。此外， 亦可使用二價金屬之鹽如鈣、鎂或鋇。 以聚烯烴纖維作爲本發明混凝土補強纖維之基本材料 ，可以使用單組份纖維其係由單組份及複合纖維組成，複 合纖維係由二或多種組份組成且經由任何邊靠邊、鞘與核 及不同圓心的鞘與核成形方式而形成。目前作爲纖維之聚 烯烴纖維係由聚烯烴作爲原材料所構成而無特別限制，且 其具有單纖維強度至少5 g / d，單纖維伸長率至少6〇 %且楊氏模數至少2 5 0 k g f /m m 2。作爲纖維組份之 原材料，它可以是均聚物僅含有丙烯單元，或丙烯共聚物 其中包含乙烯單元或其它具有至少4碳原子之烯烴單元如 丁烯一 1 ，戊烯一 1 ，4 一甲基戊烯一 1 ，己烯一 1及辛 烯一 1其用量不超過2 %以重量計，或與其它·烯烴之共聚 物。供選擇地，原材料可以是上述樹脂以結晶態無定形共 聚物形式之混合物，或丙烯與乙烯或其它烯烴之嵌段共聚 本紙張尺度適用中國國家標準（CNS ) A4規格（2!〇X297公釐） (請先閲讀背面之注意事項再填寫本頁) 衣· 542859 A7 ____B7 五、發明説明) 物。 就本發明之聚烯烴樹脂，可能在不干擾本發明優點的 程度之內，視需要在其中加入添加劑如抗氧化劑，光穩定 劑’紫外光吸收劑，中和劑，成核劑，環氧基穩定劑，潤 滑劑，殺菌劑，阻焰劑，抗靜電劑，顏料或塑化劑。 經濟部中央標準局員工消費合作社印製 n-r—·-- ·Γ1 ! I—1 I ----- --- - i ....... ί— -- ------- ......... - I 1— - - (請先閱讀背面之注意事項再填寫本頁) 接著將敘述製造聚烯烴纖維之方法，該纖維具有單纖 維強度至少5 g / d，單纖維伸長率至少6 0 %且楊氏模 數2 5 0 k g f /mm2，且用作爲本發明混凝土補強纖維 之基礎。纖維抽絲溫度較佳爲2 5 0至3 5 0 t，但融熔 抽絲則在上述溫度範圍內選擇儘可能高溫，此乃由於可允 許生產未拉延紗其中構成纖維之聚合物的分子定向受到.抑 制。抽絲溫度不宜太低於上述範圍，因爲纖維形式的融熔 聚烯烴在押出離開押出機的抽絲嘴後的冷卻，將造成固化 中纖維的大幅變形，且將促進該未拉延紗分子之定向。另 方面若抽絲溫度太較高於上述範圍，將大幅促進聚烯烴樹 脂之分解，將不僅造成纖維的起泡而難以得到具有良好可 拉性的未拉延紗，同時也將嚴重地切斷纖維分子鏈而降低 纖維之分子量並使得不可能拉伸纖維而得到具有高保持強 度與楊氏模數之聚傭烴纖維。 就冷卻押出後纖維形式的融熔聚烯烴而言，可能採取 傳統方式，例如，在介質如空氣，水或甘油中冷卻至不高 於其融點之溫度。爲儘量抑制未拉延紗之定向，宜在空氣 中冷卻而不在液体中急速冷卻。溫度與空氣流可以依所須 而設定以得到較抑制定向的未拉延紗，但宜在緩慢冷卻下 本紙張尺度適用中關家標準（〇灿）八4娜（210'乂297公瘦)' 542859 經濟部中央標準局員工消費合作社印製 A7 ____B7___ 五、發明説明& ) 執行，更確切地，在弱的空氣流且非過度低溫下冷卻。該 緩慢冷卻可形成較高程度的結晶結構，其中薄板係相對於 纖維軸方向垂直排列並因此而較佳。 未拉延紗之抽出速度較佳爲2 0 0至1 0 〇 〇 m / m i η，在設定溫度下纖維形式之融熔聚烯烴之變形 小，且抑制了定向。即使在上述範圍內，宜使用儘可能低 的抽出速度。當抽出速度高於上述範圍，在固化的纖維形 式之融熔聚烯烴其變形大，且形成加速定向之未拉延紗， 其將劣化拉伸性質且使得不可能以高拉伸比而拉伸纖維。 另方面當抽出速度低於上述範圍，將不能獲得均勻的未拉 延紗，因爲融熔聚烯烴之滴下速率低於其自然滴下速率， 此係由於在高溫纖維抽絲下其融熔黏度減低。 作爲混凝土補強纖維之基本材料的聚烯烴纖維可以具 有圓的截面或其它形狀的截面。若是其它形狀，可以使用 任何一項平的、方的由三角形到八角形、Τ形、多葉形狀 及中空形狀，且無特別限制。 接下來將敘述拉伸。就上述方法形成之未拉延聚烯烴 紗執行拉伸’可得到其具有高強度，伸長率及楊氏模數之 聚烯烴纖維。可使用已知方法將未拉延之聚烯烴紗作拉伸 ，如加熱滾筒拉伸，熱水拉伸或加熱板拉伸。拉伸可用下 列任何一項操作執行，如單階段拉伸，雙階段拉伸及多階 段拉伸，但至少二階段之拉伸將較一階段之拉伸爲佳。即 使就單階段拉伸仍可以得到聚烯烴纖維其可符合本發明定 義之強度伸長率及楊氏模數，若拉伸係緩慢地執行，而不 本纸張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） ——.-II * I I—I — -- - -- - 1· ----- - I 1 1! (m —I- I I----- 3. 、\吞 (請先閱讀背面之注意事項再填寫本頁) 542859 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明θ ) 使構成纖維的聚合物之結晶（分子定向）忽然進展。然而 多階段拉伸將有利於抑制聚合物的結晶，並進一步提高上 述纖維性質。此外，若考量多階段拉伸之製造機具，以雙 階段拉伸較佳。拉伸係在相對低的溫度範圍在5 0至9 0 °C執行。當溫度高於上述範圍，未拉延紗將快速進行定向 與結晶，當溫度低於上述範圍將劣化拉伸性質，其使無法 以賦予纖維充分高強度的拉伸比執行拉伸。 拉伸比範圍宜在3 . 8至8 . 0，拉伸比低於3 · 8 將降低所得到的纖維之單纖維強度與楊氏模數，當拉伸比 高於8 · 0將降低單纖維延伸率。就雙階段拉伸而言，拉 伸的第一階段宜使用總拉伸比4 0至7 0 %之拉伸比執行 ，較佳爲總拉伸比的5 0至6 0 %，拉伸的第二階段則在 不造成纖維的破斷或起絨毛之程度內執行，且總拉伸比須 控制在上述範圍內。當第一階段拉伸以大幅地高於總拉伸 比7 0 %的拉伸比執行，在第一階段拉伸將顯著地進行聚 合物之結晶。另方面，當第一階段拉伸以大幅地低於總拉 伸比4 0 %的拉伸比執行，在第二階段拉伸將無法抑制聚 合物之結晶。即使總拉伸比相同，無法預期雙階段拉伸之 效果，除非在拉伸的各階段抑制聚合物之結晶，且可以減 低聚烯烴纖維之單纖維強度及單纖維伸長率。此處所用之 術語 ''拉伸比〃意指進料滾筒速率對拉出滾筒速率之比例 〇 選擇性地，拉伸聚烯烴纖維可以作退火處理。退火處 理包含熱處理在不高於但近於（通常高於1 0 0 °c )融點 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐）_ 1〇 _ I.. i 衣-- (請先閲讀背面之注意事項再填寫本頁)1, 1T printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 542859 ____ B7 V. Description of the invention &) C 8-2 2 Higher ester fatty acid is adhered to the polyolefin fiber and its amount is 0.1 to 5% to By weight, relative to the weight of polyolefin fibers. The viewpoint of the present invention also preferably provides a concrete reinforcing fiber comprising polyolefin fibers having a single fiber strength of at least 7 g / d, a single fiber elongation of at least 70%, and a Young's modulus of at least 450 kgf / mm2, And the above-mentioned higher ester fatty acid is adhered to the polyolefin fiber and its amount is 0.1 to 5% by weight, relative to the weight of the polyolefin fiber. As the higher fatty acid salt, at least one basic metal salt can be used to select a group containing a sodium salt, a lithium salt, and a potassium salt. Alternatively, alkylamine salts such as primary amine salts, secondary amine salts, or tertiary amine salts or alkylammonium salts such as quaternary ammonium salts can be used. In addition, salts of divalent metals such as calcium, magnesium or barium can also be used. Polyolefin fibers are used as the basic material of the concrete reinforcing fibers of the present invention. Single-component fibers can be used, which are composed of single-component and composite fibers. Composite fibers are composed of two or more components and pass through any side-to-side, sheath, and core. And the formation of different sheaths and cores in the center of the circle. Polyolefin fibers currently used as fibers are composed of polyolefins as raw materials without any particular restrictions, and have a single fiber strength of at least 5 g / d, a single fiber elongation of at least 60%, and a Young's modulus of at least 250 kgf / mm 2. As a raw material of the fiber component, it may be a homopolymer containing only propylene units, or a propylene copolymer containing ethylene units or other olefin units having at least 4 carbon atoms such as butene-1, pentene-1, 4-methyl The amount of pentene-1, hexene-1 and octene-1 does not exceed 2% by weight, or a copolymer with other olefins. Alternatively, the raw material may be a mixture of the above-mentioned resins in the form of a crystalline amorphous copolymer, or a block copolymerization of propylene and ethylene or other olefins. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (2.0 × 297 mm) ) (Please read the precautions on the back before filling out this page) Clothing 542859 A7 ____B7 V. Description of Invention). As far as the polyolefin resin of the present invention is concerned, to the extent that it does not interfere with the advantages of the present invention, additives such as antioxidants, light stabilizers, 'ultraviolet light absorbers, neutralizers, nucleating agents, and epoxy groups may be added thereto as necessary. Stabilizers, lubricants, fungicides, flame retarders, antistatic agents, pigments or plasticizers. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs nr— ·-· Γ1! I—1 I ----- ----i ....... ί— ------- .........-I 1—--(Please read the notes on the back before filling out this page) Next, the method of manufacturing polyolefin fiber will be described. The fiber has a single fiber strength of at least 5 g / d. The single fiber elongation is at least 60% and the Young's modulus is 250 kgf / mm2, and is used as the basis for the concrete reinforcing fiber of the present invention. The fiber drawing temperature is preferably from 250 to 350 t, but the melt drawing is selected as high as possible within the above temperature range, because it allows the production of molecules of the polymer constituting the fiber in the undrawn yarn Orientation is suppressed. The drawing temperature should not be too lower than the above range, because the cooling of the molten polyolefin in the form of fibers after being extruded from the drawing nozzle of the extruder will cause a large deformation of the fiber during curing, and will promote the undrawn yarn molecules. Directional. On the other hand, if the drawing temperature is too high, the decomposition of polyolefin resin will be greatly promoted, which will not only cause foaming of the fiber and make it difficult to obtain undrawn yarn with good drawability, but also severely cut it. The fiber molecular chain reduces the molecular weight of the fiber and makes it impossible to draw the fiber to obtain a polymer fiber having a high holding strength and a Young's modulus. With regard to molten polyolefin in the form of fibers after cooling out, traditional methods may be adopted, for example, cooling in a medium such as air, water or glycerin to a temperature not higher than its melting point. In order to suppress the orientation of the undrawn yarn as much as possible, it should be cooled in air instead of being rapidly cooled in liquid. The temperature and air flow can be set as required to obtain undrawn yarns that are more restrained in orientation, but the paper size should be applied to Zhongguanjia standard (〇 Chan) 8 4 Na (210 '乂 297 male thin) under slow cooling. '542859 Printed by A7 ____B7___, Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention &) Implementation, more precisely, cooling under weak air flow and not excessively low temperature. This slow cooling can form a higher degree of crystalline structure, in which the thin plates are aligned vertically with respect to the fiber axis direction and are therefore preferred. The drawing speed of the undrawn yarn is preferably 2000 to 100 m / m i η, and the deformation of the molten polyolefin in the form of fibers is small at a set temperature, and the orientation is suppressed. Even within the above range, the lowest possible extraction speed should be used. When the extraction speed is higher than the above range, the melted polyolefin in the form of a cured fiber has a large deformation and forms an undrawn yarn with accelerated orientation, which deteriorates the drawing properties and makes it impossible to draw at a high draw ratio. fiber. On the other hand, when the drawing speed is lower than the above range, a uniform undrawn yarn cannot be obtained, because the dripping rate of the melted polyolefin is lower than its natural dripping rate, which is due to the decrease of the melt viscosity under the spinning of high temperature fibers. Polyolefin fibers as a basic material for concrete reinforcing fibers may have a circular cross section or a cross section of other shapes. For other shapes, any one of flat and square from triangle to octagon, T-shaped, multi-leaf shape, and hollow shape can be used without any particular limitation. Stretching will be described next. The undrawn polyolefin yarn formed by the above method is stretched to obtain polyolefin fibers having high strength, elongation and Young's modulus. Undrawn polyolefin yarns can be stretched using known methods, such as heated roller stretching, hot water stretching, or hot plate stretching. Stretching can be performed by any of the following operations, such as single-stage stretching, two-stage stretching, and multi-stage stretching, but at least two-stage stretching will be better than one-stage stretching. Polyolefin fibers can be obtained even in single-stage stretching, which can meet the strength elongation and Young's modulus as defined in the present invention. If the stretching is performed slowly, the Chinese National Standard (CNS) Α4 is not applicable for this paper size Specifications (210X297 mm) ——.- II * II—I —----1 · ------I 1 1! (M —I- I I ----- 3. 、 \ Swallow (Please read the notes on the back before filling this page) 542859 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention θ) The crystal (molecular orientation) of the polymer constituting the fiber suddenly progresses. However, multi-stage stretching will help suppress the crystallization of the polymer and further improve the fiber properties. In addition, if multi-stage stretching is considered, it is better to use two-stage stretching. Stretching is performed at a relatively low temperature range from 50 to 90 ° C. When the temperature is higher than the above range, the undrawn yarn will be rapidly oriented and crystallized, and when the temperature is lower than the above range, the drawing properties will be deteriorated, which makes it impossible to perform drawing at a drawing ratio that gives the fiber sufficiently high strength. The stretching ratio should be in the range of 3.8 to 8.0. A stretching ratio lower than 3 · 8 will reduce the single fiber strength and Young's modulus of the obtained fiber. When the stretching ratio is higher than 8 · 0, the single Fiber elongation. In the case of two-stage stretching, the first stage of stretching should be performed using a total stretching ratio of 40 to 70%, preferably 50 to 60% of the total stretching ratio. The second stage is performed to the extent that the fibers are not broken or fluffed, and the total draw ratio must be controlled within the above range. When the first-stage stretching is performed at a stretching ratio that is substantially higher than the total stretching ratio by 70%, the first-stage stretching will significantly progress the crystallization of the polymer. On the other hand, when the first-stage stretching is performed at a stretching ratio that is substantially lower than the total stretching ratio by 40%, the second-stage stretching will not be able to suppress the crystallization of the polymer. Even if the total draw ratio is the same, the effect of the two-stage drawing cannot be expected, unless the crystallization of the polymer is suppressed at each stage of the drawing, and the single fiber strength and single fiber elongation of the polyolefin fiber can be reduced. As used herein, the term `` stretch ratio '' means the ratio of the feed drum speed to the pull drum speed. Optionally, the drawn polyolefin fiber may be annealed. The annealing treatment includes heat treatment at a temperature not higher than but close to (usually higher than 100 ° C) the melting point of this paper is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) _ 1〇_ I .. i 衣- -(Please read the notes on the back before filling this page)
、1T 542859 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明) 之溫度以張力處理（該張力不會使纖維拉伸變長），並在 無張力下於相同溫度範圍作熱處理。經此退火處理，可以 得到具改良性熱收縮的聚烯烴纖維。 經過如上述之抽絲與拉伸程序，可以得到聚烯烴纖維 其具有物理性質如單纖維強度至少5 g / d，單纖維伸長 率至少6 0%且楊氏模數2 5 0 k g f/mm2。特別是由 高溫度抽絲與低溫拉伸或雙階段拉伸，可以得到高強度及 伸長率的聚烯烴纖維其具有單纖維強度至少7 g / d，單 纖維伸長率至少7 0 %且楊氏模數至少4 5 0 k g f /m m 2 ’且最理想作爲混凝土補強纖維。 將較高酯肪酸鹽黏著於聚烯烴纖維，可以在抽絲步驟 或拉伸步驟執行。就黏著而言，可以使用滾筒方法，浸沒 方法，噴灑方法或輕拍乾燥方法。在抽絲步驟及拉伸步驟 作處理可造成均勻的黏著且因此而爲較佳之選擇。 如本發明之混凝土補強纖維具有C 8 - 2 2較高酯肪酸鹽 黏著其上，且用量爲0 · 1至5 %以重量計，相對於聚烯 烴纖維之重量。較高酯肪酸鹽之量低於〇 · 1 %以重量計 將無法帶來充分的補強效果。另方面當其含量超過5 %以 重量計，補強效果將達飽和且混凝土之彎曲強度及撞擊吸 收能量達到平衡。此外，過多量使纖維之表面呈黏的，且 將有損生產率，故由經濟觀點來看在實用上不須要。 因爲如本發明之混凝土補強纖維包含聚烯烴纖維其具 有單纖維強度至少5 g / d，單纖維伸長率至少6 0 %且 楊氏模數至少2 5 0 k g f /m2，且上述較高酯肪酸鹽黏 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂 542859 A7 ______B7 五、發明説明6 ) 著於其上，可改良混凝土的補強效果，特別是撞擊強度補 強效果。 混凝土之撞擊吸收能量愈高，混凝土將具有較高的撞 擊強度。此處所用術語 ''撞擊吸收能量〃意指就混凝土模 製品自施以應力直到破斷應力消失之能量。 經濟部中央標準局員工消費合作社印製 —I—- - ....... - --、...... 二 _ - - - -·丈^- _ - !_= 1I...... Hi ! = -- (請先閲讀背面之注意事項再填寫本頁) 本發明聚烯烴纖維具有單纖維伸長率至少6 0 %，單 纖維強度至少5 g / d且楊氏模數至少2 5 0 k g f /m m 2，其具有較傳統聚烯烴纖維高之撞擊吸收能 量’且因此也具有較高的撞擊強度。也就是，混凝土破斷 之後高單纖維伸長率可保持混凝土模製品之強度，且高單 纖維強度與高楊氏模數使得混凝土模製品起始強度與強度 較其本身爲高。在本發明中，因爲聚烯烴纖維具有上述性 質’相較於傳統方式這些性質之合倂將協乘性地提高混凝 土模製品之補強效果。再者，若聚烯烴纖維具有單纖維伸 長率至少7 0 %且單纖維強度至少7 g / d，撞擊吸收能 量將展示極端的之改良，造成對撞擊強度進一步之改良。 此外，因爲本發明聚烯烴纖維具有楊氏模數至少2 5〇 k g f /m m 2，將可抵抗初始撞擊且防止其本身之破斷， 從而可以完全展現單纖維強度與單纖維伸長率之效果及較 高酯肪酸鹽之效果。楊氏模數宜至少4 5 0 k g f / m m 2 。宜提高楊氏模數至纖維物理性質之限制。 將上述較高酯肪酸鹽黏著於聚烯烴纖維之表面，可改 良在混凝土中之親合性與分散性。較高酯肪酸鹽係一種化 合物其具有親水性基團及疏水性基團兩種極性。爲造成較 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） _ 1 2 - 542859 Α7 Β7 五、發明説明（n ) ，（1)依據 J IS — A1408 (1995 — 1 — 1) 測定彎曲強度且（2 )依據J I s — B 7 7 2 2 ( 1 9 9 5 一 1 — 1 )之單樑式（Charpy )撞擊強度試驗而測定撞 擊強度。 ”實施例1至8，比較實施例1至8 ”中纖維製造條 件與纖維的物理性質展示如表1。單纖維強度測定係依據 J ISL-1015 (1995-1-1)。表中作爲丙 _纖維原材料者，係使用一有融熔流速爲 8 g / 1 〇 m i η之樹脂。融熔流速之測定係依據j z s —Κ 7 2 1 〇 ( 1 9 9 5 — 1 - 1 )。楊氏模數係由所測 得單纖維強度與伸長率而計算。 (請先閲讀背面之注意事項再填寫本頁) -訂 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） 542859 A7 _ B7_ 五、發明説明（13 ) 實施例1 將表1中（1)聚丙烯纖維（〇.18kg) ’18 k g的一般波特蘭水泥及6公升的水混合，並將所得到的 混合物在1 2 0 k g / c m 2的壓力之下加壓1 0秒，從而 得到尺寸爲30cmx25cmxl·lcm混凝土模製 品之樣品。之後將所得到的模製品以6 ◦ t蒸汽硬化5小 時’之後在室內放置2 8天，將所得到的模製品依上述項 目逐一測試。 實施例2 以近似於實施例1之方式，除了使用表1中（2 ) & 聚丙烯纖維，得到混凝土模製品。 實施例3 近似於實施例1之方式，除了使用表1中（3 )之_ 丙烯纖維，得到混凝土模製品。 經濟部中央標準局員工消費合作社印製 |_--.------:装------訂 (請先閲讀背面之注意事項再填寫本頁) 實施例4 近似於實施例1之方式.，除了使用表1中（4 )之聚 丙烯纖維，得到混凝土模製品。 實施例5 近似於實施例1之方式，除了使用表1中（5 )之聚 丙烯纖維，得到混凝土模製品。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） q ^ ^-- 542859 A7 五、發明説明（14 ) 實施例6 近似於實施例1之方式，除了使用表1中（6 )之^ 丙烯纖維，得到混凝土模製品。 實施例7 近似於實施例1之方式，除了使用表1中（7 )之聚 丙烯纖維，得到混凝土模製品。 實施例8 近似於實施例1之方式，除了使用表1中（8 )之聚 丙烯纖維，得到混凝土模製品。 實施例9 近似於實施例1之方式，除了使用表1中（9 ) t % 丙烯纖維，得到混凝土模製品。 經濟部中央標準局員工消費合作社印製 m. IJ —ϋ—1—- ml I - - 二1^/ I - i ..... UK —is 1---J (請先閱讀背面之注意事項再填寫本頁) 比較實施例1 近似於實施例1之方式，除了使用表1中（1 0 ) t 聚丙烯纖維，得到混凝土模製品。 比較實施例2 近似於實施例1之方式，除了使用表1中（1 1 ) 聚丙烯纖維，得到混凝土模製品。1T 542859 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention) The temperature is treated with tension (the tension does not make the fiber stretch), and it is heat treated in the same temperature range without tension. Through this annealing treatment, polyolefin fibers having improved heat shrinkage can be obtained. After the spinning and drawing procedures as described above, polyolefin fibers can be obtained which have physical properties such as a single fiber strength of at least 5 g / d, a single fiber elongation of at least 60%, and a Young's modulus of 250 k g f / mm2. Especially by high temperature spinning and low temperature stretching or two-stage stretching, polyolefin fibers with high strength and elongation can be obtained. It has a single fiber strength of at least 7 g / d, a single fiber elongation of at least 70% and Young's The modulus is at least 4 50 kgf / mm 2 'and is ideal as a reinforcing fiber for concrete. Adhesion of higher fatty acid salts to polyolefin fibers can be performed in the spinning step or the drawing step. For adhesion, a roller method, an immersion method, a spray method, or a tap drying method can be used. Treatment in the drawing step and drawing step can cause uniform adhesion and is therefore a better choice. The reinforced concrete fiber such as the present invention has a C 8-2 2 higher ester fatty acid adhered thereto, and the amount is from 0.1 to 5% by weight relative to the weight of the polyolefin fiber. An amount of higher ester fatty acid less than 0.1% by weight will not bring a sufficient reinforcing effect. On the other hand, when its content exceeds 5% by weight, the reinforcement effect will be saturated and the bending strength of the concrete and the energy absorbed by the impact will reach a balance. In addition, an excessive amount makes the surface of the fiber sticky, and the productivity is impaired, so it is not practically necessary from an economic point of view. Because the reinforced concrete fiber according to the present invention contains polyolefin fiber, it has a single fiber strength of at least 5 g / d, a single fiber elongation of at least 60% and a Young's modulus of at least 250 kgf / m2, and the above-mentioned higher ester fat The size of the acid-adhesive paper is in accordance with Chinese National Standard (CNS) A4 (210X297 mm) (please read the precautions on the back before filling in this page) Order 542859 A7 ______B7 V. Description of the Invention 6) It can be improved on it Reinforcing effect of concrete, especially impact strength. The higher the impact energy absorbed by the concrete, the higher the impact strength of the concrete. As used herein, the term `` impact absorbing energy '' means the energy from the application of a stress to a concrete molding until the breaking stress disappears. Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs—I—--.......--, ...... II_----· ^^-_-! _ = 1I .. .... Hi! =-(Please read the notes on the back before filling this page) The polyolefin fiber of the present invention has a single fiber elongation of at least 60%, a single fiber strength of at least 5 g / d and a Young's modulus At least 250 kgf / mm 2, which has a higher impact absorption energy than conventional polyolefin fibers' and therefore also a higher impact strength. That is, the high single fiber elongation after the breaking of the concrete can maintain the strength of the concrete molded product, and the high single fiber strength and high Young's modulus make the initial strength and strength of the concrete molded product higher than itself. In the present invention, because the polyolefin fiber has the above-mentioned properties', the combination of these properties will synergistically improve the reinforcing effect of the concrete molding compared with the conventional method. Furthermore, if the polyolefin fiber has a single fiber elongation of at least 70% and a single fiber strength of at least 7 g / d, the impact absorption energy will show an extreme improvement, resulting in a further improvement in impact strength. In addition, since the polyolefin fiber of the present invention has a Young's modulus of at least 250 kgf / mm 2, it will be able to resist the initial impact and prevent its breakage, so that the effects of single fiber strength and single fiber elongation can be fully exhibited and The effect of higher ester fatty acid. The Young's modulus should preferably be at least 450 k g f / m m 2. It is advisable to increase the Young's modulus to the limit of fiber physical properties. Adhering the above-mentioned higher ester fatty acid to the surface of polyolefin fibers can improve the affinity and dispersibility in concrete. Higher ester fatty acid salts are compounds that have both polarities of hydrophilic and hydrophobic groups. In order to apply the Chinese National Standard (CNS) A4 specification (210 X 297 mm) _ 1 2-542859 Α7 Β7 than the paper size, the description of the invention (n), (1) According to J IS — A1408 (1995 — 1 — 1) Determine the bending strength and (2) determine the impact strength according to the JI s — B 7 7 2 2 (1 9 9 5 — 1 — 1) single beam (Charpy) impact strength test. Table 1 shows the fiber manufacturing conditions and the physical properties of the fibers in "Examples 1 to 8 and Comparative Examples 1 to 8". The single fiber strength was measured according to J ISL-1015 (1995-1-1). As the fiber raw material in the table, a resin having a melt flow rate of 8 g / 10 m i η is used. The measurement of the melt flow rate is based on j z s —K 7 2 1 0 (199 5 — 1-1). Young's modulus is calculated from the measured single fiber strength and elongation. (Please read the notes on the back before filling this page)-Order the paper size printed by the Employees' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs to apply the Chinese National Standard (CNS) A4 specification (210 × 297 mm) 542859 A7 _ B7_ V. Description of the invention (13) Example 1 (1) Polypropylene fibers (0.18 kg) in Table 1 were mixed with general Portland cement of 18 kg and 6 liters of water, and the resulting mixture was mixed at 120 kg / cm A pressure of 2 was applied for 10 seconds to obtain a sample of a concrete molded product having a size of 30 cm x 25 cm x l·l cm. Thereafter, the obtained molded products were cured by steam curing at 6 ◦ t for 5 hours', and then allowed to stand in a room for 28 days, and the obtained molded products were tested one by one according to the above items. Example 2 In a manner similar to Example 1, except that (2) & polypropylene fibers in Table 1 were used, a concrete molded article was obtained. Example 3 A method similar to that of Example 1, except that the acrylic fiber of (3) in Table 1 was used to obtain a concrete molded product. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs | _--.------: Install ------ Order (please read the precautions on the back before filling this page) Example 4 Similar to the example Method 1. In addition to using the polypropylene fiber (4) in Table 1, a concrete molded product is obtained. Example 5 A method similar to that of Example 1, except that the polypropylene fiber (5) in Table 1 was used to obtain a concrete molded product. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) q ^ ^-542859 A7 V. Description of the invention (14) Example 6 The method is similar to that of Example 1, except that Table 1 (6) is used ^ Acrylic fiber to obtain concrete molded products. Example 7 In a manner similar to that of Example 1, except that the polypropylene fiber of (7) in Table 1 was used, a concrete molded product was obtained. Example 8 In a manner similar to that of Example 1, except that the polypropylene fiber (8) in Table 1 was used, a concrete molded product was obtained. Example 9 In a manner similar to that of Example 1, except that (9) t% acrylic fiber in Table 1 was used, a concrete molded product was obtained. Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs m. IJ —ϋ—1—- ml I--2 1 ^ / I-i ..... UK —is 1 --- J (Please read the note on the back first Please fill in this page again.) Comparative Example 1 A method similar to Example 1 except that (1 0) t polypropylene fiber in Table 1 was used to obtain a concrete molded product. Comparative Example 2 A method similar to that of Example 1, except that the polypropylene fiber (1 1) in Table 1 was used to obtain a concrete molded product.
本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐）-17- 542859 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（is ) 比較實施例3 近似於實施例1之方式，除了使用表1中（1 2 )之 聚丙烯纖維，得到混凝土模製品。 比較實施例4 近似於實施例1之方式，除了使用表1中（1 3 )之 聚丙烯纖維，得到混凝土模製品。 比較實施例5 近似於實施例1之方式，除了使用表1中（1 4 )之 聚丙烯纖維，得到混凝土模製品。 比較實施例6 近似於實施例1之方式，除了使用表1中（1 5 )之 聚丙烯纖維，得到混凝土模製品。 比較實施例7 近似於實施例1之方式，除了使用表1中（1 6 )之 聚丙烯纖維，得到混凝土模製品。 比較實施例8 近似於實施例1之方式，除了使用表1中（丨7 )之 聚丙烯纖維，得到混凝土模製品。 本紙張尺度通用宁國國冬標準（CNS ) A4規格（210'乂297公襲） _ 18 - L--：------^ —— (請先閲讀背面之注意事項再填寫本頁) 、11 542859 A7 B7 五、發明説明（16 ) 實施例1至9及比較實施例1至8所得到混凝土模製 品的物理性質之評估結果展示如表2。 (請先閱讀背面之注意事項再填寫本頁) 袈·This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -17- 542859 printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (is) Comparative Example 3 Similar to the Example In the first method, except that the polypropylene fiber (1 2) in Table 1 is used, a concrete molded product is obtained. Comparative Example 4 A method similar to that of Example 1, except that the polypropylene fiber (1 3) in Table 1 was used to obtain a concrete molded product. Comparative Example 5 A method similar to that of Example 1, except that the polypropylene fiber (14) in Table 1 was used to obtain a concrete molded product. Comparative Example 6 A method similar to that of Example 1, except that the polypropylene fiber (15) in Table 1 was used to obtain a concrete molded product. Comparative Example 7 In a manner similar to that of Example 1, except that the polypropylene fiber (16) in Table 1 was used, a concrete molded product was obtained. Comparative Example 8 A method similar to that of Example 1, except that the polypropylene fiber in Table 1 (7) was used to obtain a concrete molded product. This paper is in general Ningguo National Winter Standard (CNS) A4 specification (210 '乂 297 attack) _ 18-L--: ------ ^ —— (Please read the precautions on the back before filling this page ), 11 542859 A7 B7 V. Description of the invention (16) The evaluation results of the physical properties of the concrete molded products obtained in Examples 1 to 9 and Comparative Examples 1 to 8 are shown in Table 2. (Please read the notes on the back before filling this page) 袈 ·
、1T 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） -19 - 542859 經濟部中央標準局員工消費合作社印製 A7 ___B7 _五、發明説明（18 ) 由表2可明顯看出，實施例1至9所得到之纖維具有 絕佳的混凝土補強效果。 已發現用於實施例7與8之混凝土補強用纖維具有特 別絕佳的混凝土補強效果，且優於用於實施例1至6的纖 維的混凝土補強效果。於實施例1至6所用之纖維對混凝 土模製品具有令人滿意的補強效果，其係由物理性質評估 結果評判，但當纖維之強度，伸長率及楊氏模數分別提高 到至少7g/d，至少70%及至少450kgf/mm ，它們展現了極端的改良效果，因而能顯著地增加撞擊吸 收能量。 用於比較實施例1之纖維具有不如此高的補強效果， 因爲黏著之較高酯肪酸鹽用量低於0.1%以重量計，而 用於比較實施例2之纖維在撞擊強度上特別較差其係由於 較高酯肪酸鹽爲未黏著上。 用於比較實施例3至9之纖維不具有令人滿意的物理 性質，故不能提供令人滿意的補強效果。得自比較實施例 4，6及8之纖維不具有充分的補強效果，因爲較高酯肪 酸鹽未黏附於各纖維上，其補強效果遜於比較實施例3， 5及7之纖維。用於比較實施例2之纖維具有令人滿意程 度的物理性質，但即使在此案例中未能達到充分的補強效 果，因爲較高酯肪酸鹽未黏附於纖維上。簡而言之，本發 明之優點可由纖維提供，該纖維具有物理性質如單纖維強 度至少5 g / d，單纖維伸長率至少6 0 %，且楊氏模數 至少2 5 0 k g f/mm2，更佳爲，單纖維強度至少7 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）_ 21 - ϋ·1· — n ιϋ·_· ft—.··— m· ·ϋι 1 βϋιϋ Mm anil am ϋϋϋ mu \ 4V"、\呑 (請先閲讀背面之注意事項再填寫本頁) 542859 A7 B7 五、發明説明（19 ) g/d，單纖維伸長率至少7 0%且楊氏模數至少4 5 0 k g f /m m 2，且其表面經上述較高酯肪酸鹽處理。 〔本發明之優點〕 如本發明之混凝土補強纖維具有絕佳混凝土補強效果 。因爲混凝土補強纖維其具有高強度及伸長率且高保持的 楊氏模數，此外，經由特殊的較高酯肪酸鹽而與水泥具有 改良的黏著，而在混凝土模製品中具有充分的補強效果。 因此而可改良混凝土模製品的強度。特別是其高楊氏模數 可生產具有改良補強效果的水泥補強用纖維，特別是改良 的撞擊強度。 ! ....... —II I. \水!_·= ......... 1 1-- - - -1— (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印裂 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -22- 經濟部智慧財產局員工消費合作社印製 542859 五、發明説明（3 ) 耐受力，導致本發明之完成。 爲克服上述問題，本發明具有下列構造： (1 ) 一種混凝土補強纖維，其中包含聚烯烴纖維其 具有單纖維強度至少5 g / d，單纖維伸長率至少6 0 % 且楊氏模數至少2 5 0 k g f /m m 2,且C 8 - 2 2較高酯肪 酸鹽黏附於聚烯烴纖維而其用量爲0 . 1至5 %以重量計 ，相對於聚烯烴纖維之重量。 (2 )如上述（1 )之混凝土補強纖維，其中所述聚 烯烴纖維其具有單纖維強度至少7 g / d 1 ，單纖維伸長 率至少7 0%且楊氏模數至少4 5 0 k g f /mm2。 (3 )如上述（1 )或（2 )之混凝土補強纖維，其 中所述聚烯烴纖維爲聚丙烯纖維。 (4 ) 一種混凝土補強纖維如上述（1 )至（3 )中 任一項，其中所述鹽爲至少一種鹼性金屬鹽，其係選自下 列群組，該群組中包含鈉鹽，鋰鹽及鉀鹽，烷胺鹽或烷基 銨鹽。 (5 ) —種混凝土模製品，其中包含如上述（1 )至 (4 )中任一項之混凝土補強纖維。 _灰# 1之詳細敘述 以下就本發明作更確切地敘述。 本發明觀點之一在提供一種混凝土補強纖維，其中包 含聚烯.烴纖維其具有單纖維強度至少5 g / d，單纖維伸 長率至少6 〇 %且楊氏模數至少2 5 0 k g f /m m 2，且 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） -6 - I--I -----'- I ------丁______ (請先閱讀背面之注意事項再填寫本頁) 542859、 1T Printed by the Consumers 'Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs This paper is printed in accordance with the Chinese National Standard (CNS) A4 (210X297 mm) -19-542859 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economics A7 _B7 _V. Description of the invention (18) As can be clearly seen from Table 2, the fibers obtained in Examples 1 to 9 have excellent concrete reinforcing effects. The fibers for concrete reinforcement used in Examples 7 and 8 have been found to have particularly excellent concrete reinforcement effects and are superior to the concrete reinforcement effects of fibers used in Examples 1 to 6. The fibers used in Examples 1 to 6 had a satisfactory reinforcing effect on the concrete moldings, which were judged by the results of the physical property evaluation, but when the fiber strength, elongation and Young's modulus were increased to at least 7g / d , At least 70% and at least 450kgf / mm, they show an extreme improvement effect, which can significantly increase the impact absorption energy. The fiber used in Comparative Example 1 had a not so high reinforcing effect, because the amount of higher ester fatty acid adhered was less than 0.1% by weight, and the fiber used in Comparative Example 2 was particularly poor in impact strength. It is because the higher ester fatty acid is not adhered. The fibers used in Comparative Examples 3 to 9 did not have satisfactory physical properties and therefore could not provide satisfactory reinforcing effects. The fibers obtained from Comparative Examples 4, 6, and 8 did not have a sufficient reinforcing effect because higher esters of fatty acids did not adhere to each fiber, and their reinforcing effects were inferior to those of Comparative Examples 3, 5, and 7. The fiber used in Comparative Example 2 had a satisfactory degree of physical properties, but even in this case, a sufficient reinforcing effect was not achieved because the higher ester salt did not adhere to the fiber. In short, the advantages of the present invention can be provided by fibers that have physical properties such as a single fiber strength of at least 5 g / d, a single fiber elongation of at least 60%, and a Young's modulus of at least 250 kgf / mm2, More preferably, the single fiber strength is at least 7 This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) _ 21-ϋ · 1 · — n ιϋ · _ · ft—. ·· — m · · ϋι 1 βϋιϋ Mm anil am ϋϋϋ mu \ 4V ", \ 呑 (Please read the precautions on the back before filling this page) 542859 A7 B7 V. Description of the invention (19) g / d, single fiber elongation rate is at least 70% and Young's The modulus is at least 450 kgf / mm 2 and its surface is treated with the above-mentioned higher fatty acid salts. [Advantages of the present invention] The concrete reinforcing fiber according to the present invention has excellent concrete reinforcing effect. Because the concrete reinforcing fiber has high strength, elongation and high retained Young's modulus, in addition, it has improved adhesion to cement through a special higher ester salt, and has a sufficient reinforcing effect in concrete molded products. . Therefore, the strength of the concrete molding can be improved. In particular, its high Young's modulus makes it possible to produce fibers for cement reinforcement with improved reinforcement effects, especially improved impact strength. ! ....... —II I. \ Water! _ · = ......... 1 1-----1— (Please read the notes on the back before filling this page) Economy Printed on the paper of the Consumer Cooperative of the Ministry of Standards and Standards of the Ministry of Standards of the People's Republic of China. The paper size is applicable to the Chinese National Standard (CNS) A4 (210X297 mm). Leading to the completion of the present invention. To overcome the above problems, the present invention has the following structures: (1) A concrete reinforcing fiber comprising polyolefin fibers having a single fiber strength of at least 5 g / d, a single fiber elongation of at least 60%, and a Young's modulus of at least 2 50 kgf / mm 2, and C 8-2 2 higher ester fatty acid is adhered to the polyolefin fiber in an amount of 0.1 to 5% by weight relative to the weight of the polyolefin fiber. (2) The concrete reinforcing fiber according to the above (1), wherein the polyolefin fiber has a single fiber strength of at least 7 g / d1, a single fiber elongation of at least 70%, and a Young's modulus of at least 4 50 kgf / mm2. (3) The concrete reinforcing fiber according to (1) or (2) above, wherein the polyolefin fiber is polypropylene fiber. (4) A concrete reinforcing fiber according to any one of (1) to (3) above, wherein the salt is at least one basic metal salt, which is selected from the group consisting of sodium salt and lithium Salts and potassium salts, alkylamine salts or alkylammonium salts. (5) A concrete molded product comprising the reinforced concrete fiber according to any one of (1) to (4) above. _Ash # 1 Detailed description The present invention will be described more specifically below. One aspect of the present invention is to provide a reinforced concrete fiber comprising a polyolefin. A hydrocarbon fiber having a single fiber strength of at least 5 g / d, a single fiber elongation of at least 60%, and a Young's modulus of at least 250 kgf / mm 2, and this paper size is applicable. National National Standard (CNS) A4 specification (210X297 mm) -6-I--I -----'- I ------ 丁 ______ (Please read first (Notes on the back then fill out this page) 542859
A7 ___ B7 五、發明説明（10 ) (請先閲讀背面之注意事項再填寫本頁) 高酯肪酸鹽黏著於聚烯烴纖維之表面，聚烯烴纖維疏水性 基團與較高酯肪酸鹽具有親合性，從而得到鍵結力。另方 面’較高酯肪酸鹽之親水性基團與水泥相互對抗，且水泥 中之鈣離子被較高酯肪酸鹽之鹽所取代而形成較高酯肪酸 鹽之鈣鹽，其係不可溶且本身具接著性物質，使水泥顆粒 藉以黏著於混凝土補強纖維之表面。換言之，將較高酯肪 酸鹽加入聚烯烴纖維與水泥之間，使介於水泥與混凝土補 強纖維間之黏著變得牢固且可改良親合性，從而使混凝土 補強纖維可易於分散於水泥中。因此也可改良在水泥中之 分散性。 ’ 經濟部智慧財產局員工消費合作社印製 混凝土之補強效果可以由下列之改良途徑而得到：聚 烯烴纖維的單纖維伸長率、單纖維強度與楊氏模數，或上 述較高酯肪酸鹽對纖維之黏著，由這兩種方法的協乘性效 果可使補強效果極端地提高。特別是聚烯烴纖維其具有單 纖維強度至少5 g/d，單纖維伸長率至少6 0%且楊氏 模數至少2 5 0 k g f /m m 2屬絕佳的強度基本物理性質 ，但由上述較高酯肪酸鹽之黏著所得協乘性效果，可改良 介於聚烯烴纖維與較高酯肪酸鹽間之平衡，因而改良較高 酯肪酸鹽對纖維之表面之吸附，且大幅地改良混凝土模製 品的物理性質（特別是撞擊強度）。 〔實施例〕 以下將由實施例更確切地敘述本發明。然而本發明並 不受限於這些實施例。基於評估混凝土模製品的物理性質 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） -13 - 542859A7 ___ B7 V. Description of the invention (10) (Please read the notes on the back before filling this page) High ester fatty acid adheres to the surface of polyolefin fiber, and the hydrophobic groups of polyolefin fiber and higher ester fatty acid It has affinity to obtain bonding force. On the other hand, the hydrophilic group of the higher ester fatty acid and the cement oppose each other, and the calcium ion in the cement is replaced by the salt of the higher ester fatty acid to form the calcium salt of the higher ester fatty acid. Insoluble and self-adhesive substances, so that cement particles adhere to the surface of concrete reinforcing fibers. In other words, adding a higher ester fatty acid between the polyolefin fiber and the cement makes the adhesion between the cement and the concrete reinforcing fiber firm and improves the affinity, so that the concrete reinforcing fiber can be easily dispersed in the cement . Therefore, the dispersibility in cement can also be improved. '' The reinforced effect of concrete printed by employees' cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs can be obtained by the following improvement methods: single fiber elongation, single fiber strength and Young's modulus of polyolefin fibers, or the above-mentioned higher fatty acid esters For the adhesion of fibers, the synergistic effect of these two methods can greatly enhance the reinforcing effect. In particular, polyolefin fibers have a single fiber strength of at least 5 g / d, a single fiber elongation of at least 60%, and a Young's modulus of at least 250 kgf / mm 2 are excellent basic physical properties of strength. The synergistic effect of high ester fatty acid adhesion can improve the balance between polyolefin fibers and higher fatty acid salts, thus improving the adsorption of higher fatty acid salts on the fiber surface, and greatly improving Physical properties of concrete mouldings (especially impact strength). [Examples] The present invention will be described more specifically by the following examples. However, the present invention is not limited to these examples. Based on the evaluation of the physical properties of the concrete moldings. The paper size is applicable. National Standard (CNS) A4 (210X297 mm) -13-542859
A Βαν 6 1/A Βαν 6 1 /
7 B 五、發明説明（12 ) [表1] 經濟部智慧財產局員工消費合作社印製7 B V. Description of the Invention (12) [Table 1] Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs
No。 纖維種 類 抽絲溫 度ΓΟ 抽出溫 度ΓΟ 抽出比 細度 _ 纖維長 度(mm) 單纖維 (g/d) 單纖維伸長 率(％) 楊氏模數 (kgf/mm2) 較商脂肪酸 鹽 黏著 量(％) (I) 聚丙烯 290 60 4.7 2 5 5.2 65.2 299 油酸鉀 0.1 ⑵. 聚丙烯 290 60 4.7 2 5 5.2 63.5 319 辛酸鉀 4.8 (3) 聚丙烯 290 60 4.7 2 5 5.2 63.5 319 硬脂酸鉀 1.0 (4) 聚丙烯 290 60 4.7 2 5 5.7 66.9 364 油酸胺鹽 3.8 (5) 聚丙烯 290 60 4.7 2 5 5.7 66.9 364 月桂酸鉀 2.8 (6) 聚丙烯 290 60 4.7 2 5 5.7 66.9 364· 廿二烷酸鈉 2.6 (7) 聚丙烯 290 60 4.7 2 5 5.7 66.9 364 亞油酸鈉 0.8 (8) 聚丙烯 330 60 7.1 2 5 7.2 75.7 480 油酸鉀 1.7 (9) 聚丙烯 330 60 7.1 2 5 7.3 73.6 551 硬脂酸鉀 3.3 (10) 聚丙烯 290 60 4.7 2 5 5.2 63.5 319 硬脂酸鉀 0.03 (II) 聚丙烯 290 60 4.7 2 5 5.2 63.5 319 無 (12) 聚丙烯 230 60 4.1 2 5 4.3 25.6 247 油酸鉀 1.4 (13) 聚丙烯 230 60 4.1 2 5 4.3 25.6 247 無 (14) 聚丙烯 300 60 5.5 2 5 6.5 19.8 384 油酸鉀 1.5 (15) 聚丙烯 300 60 5.5 2 5 6.5 19.8 384 無 (16) 聚丙烯 250 60 3.6 2 5 3.4 78.7 217 油酸鉀 1.8 (17) 聚丙烯 250 60 3.6 2 5 3.4 78.7 217 無 ...... - - - !!J0 - I— A 1 -i - !(請先閱讀背面之注意事項再填寫本頁)No. Fiber Type Drawing Temperature ΓΟ Extraction Temperature ΓΟ Extraction Specific Fineness_ Fiber Length (mm) Single Fiber (g / d) Single Fiber Elongation (%) Young's Modulus (kgf / mm2) Compared to Commercial Fatty Acid Salt Adhesion (% ) (I) polypropylene 290 60 4.7 2 5 5.2 65.2 299 potassium oleate 0.1 酸. Polypropylene 290 60 4.7 2 5 5.2 63.5 319 potassium octoate 4.8 (3) polypropylene 290 60 4.7 2 5 5.2 63.5 319 potassium stearate 1.0 (4) polypropylene 290 60 4.7 2 5 5.7 66.9 364 amine oleate 3.8 (5) polypropylene 290 60 4.7 2 5 5.7 66.9 364 potassium laurate 2.8 (6) polypropylene 290 60 4.7 2 5 5.7 66.9 364 · Sodium dialkylate 2.6 (7) Polypropylene 290 60 4.7 2 5 5.7 66.9 364 Sodium linoleate 0.8 (8) Polypropylene 330 60 7.1 2 5 7.2 75.7 480 Potassium oleate 1.7 (9) Polypropylene 330 60 7.1 2 5 7.3 73.6 551 Potassium stearate 3.3 (10) Polypropylene 290 60 60 4.7 2 5 5.2 63.5 319 Potassium stearate 0.03 (II) Polypropylene 290 60 4.7 2 5 5.2 63.5 319 None (12) Polypropylene 230 60 4.1 2 5 4.3 25.6 247 potassium oleate 1.4 (13) polypropylene 230 60 4.1 2 5 4.3 25.6 247 none (14) polypropylene 300 60 5.5 2 5 6.5 19.8 384 potassium oleate 1.5 (15) Polypropylene 300 60 5.5 2 5 6.5 19.8 384 None (16) Polypropylene 250 60 3.6 2 5 3.4 78.7 217 Potassium oleate 1.8 (17) Polypropylene 250 60 3.6 2 5 3.4 78.7 217 None ... .---!! J0-I— A 1 -i-! (Please read the notes on the back before filling this page)
、1T 本纸張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 542859、 1T This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) 542859
經濟部智慧財產局員工消費合作社印製 五、發明説明（17 ) 〔表2〕 彎曲強度 (kg/cm2) 撞擊強度 (kg-cm/cm2) 撞擊吸收 能量 (kgf-cm) 實施例1 171 10。8 40.8 實施例2 178 11.1 40.6 實施例3 177 11.0 42.2 實施例4 182 11.6 42.6 實施例5 181 11.4 42.9 實施例6 181 11.5 43.0 實施例7 183 11.4 42.8 實施例8 219· 13.6 50.7 實施例9 233 14.5 53.8 比較實施例1 135 6.3 23.6 比較實施例2 140 7.9 27.7 比較實施例3 117 3.2 12.2 比較實施例4 106 1.5 5.9 比較實施例5 135 4.6 17.5 比較實施例6 116 2.5 9.3 比較實施例7 132 5.9 20.3 比較實施例8 115 3.4 13.0 (請先閱讀背面之注意事項再填寫本頁) 本纸張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -20 -Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (17) [Table 2] Bending strength (kg / cm2) Impact strength (kg-cm / cm2) Impact absorption energy (kgf-cm) Example 1 171 10 8 40.8 Example 2 178 11.1 40.6 Example 3 177 11.0 42.2 Example 4 182 11.6 42.6 Example 5 181 11.4 42.9 Example 6 181 11.5 43.0 Example 7 183 11.4 42.8 Example 8 219 · 13.6 50.7 Example 9 233 14.5 53.8 Comparative Example 1 135 6.3 23.6 Comparative Example 2 140 7.9 27.7 Comparative Example 3 117 3.2 12.2 Comparative Example 4 106 1.5 5.9 Comparative Example 5 135 4.6 17.5 Comparative Example 6 116 2.5 9.3 Comparative Example 7 132 5.9 20.3 Comparative Example 8 115 3.4 13.0 (Please read the precautions on the back before filling in this page) The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -20-
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36704097 | 1997-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW542859B true TW542859B (en) | 2003-07-21 |
Family
ID=18488316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW87121653A TW542859B (en) | 1997-12-25 | 1998-12-24 | Concrete reinforcing fiber |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19860335B4 (en) |
| TW (1) | TW542859B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19938146A1 (en) * | 1999-08-16 | 2001-02-22 | Helmut Von Der Kluse | Bottle closure unit, in particular, for wine bottles, takes the form of short length of cable which consists of filaments or fibers |
| KR20050061480A (en) * | 2002-09-26 | 2005-06-22 | 사우레르 게엠베하 운트 캄파니 카게 | Method for producing highly stable polypropylene fibres |
| US7585445B2 (en) | 2002-09-26 | 2009-09-08 | Saurer Gmbh & Co., Kg | Method for producing high tenacity polypropylene fibers |
| US10131579B2 (en) | 2015-12-30 | 2018-11-20 | Exxonmobil Research And Engineering Company | Polarity-enhanced ductile polymer fibers for concrete micro-reinforcement |
| RU2707097C2 (en) * | 2017-07-12 | 2019-11-22 | федеральное государственное бюджетное образовательное учреждение высшего образования "Российский государственный университет им. А.Н. Косыгина (Технологии. Дизайн. Искусство)" | Device for energy-saving control of air and heat flows of forced-draft mechanism of industrial boiler unit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3155537A (en) * | 1959-02-24 | 1964-11-03 | Du Pont | Rope finish |
| BE635080A (en) * | 1962-07-18 | |||
| DK333981A (en) * | 1981-07-27 | 1983-01-28 | Agri Contact | PRE-HEATING OF PLASTIC FIBERS FOR CONCRETE |
| US4693749A (en) * | 1985-12-20 | 1987-09-15 | E. I. Dupont De Nemours And Company | Cement reinforcement |
| DK695688D0 (en) * | 1988-12-14 | 1988-12-14 | Danaklon As | FIBERS AND MATERIALS CONTAINING THE SAME |
| JP3755267B2 (en) * | 1997-11-18 | 2006-03-15 | チッソ株式会社 | Concrete reinforcing fiber and concrete molded body using the same |
| ATE409765T1 (en) * | 1999-04-07 | 2008-10-15 | Dror Selivansky | SYNTHETIC FIBERS AND CEMENT-BASED SYSTEM WITH SUCH FIBERS |
| DE10028215A1 (en) * | 2000-06-09 | 2001-12-20 | Corovin Gmbh | Melt-blown fiber fleece, for use in e.g. sanitary towels and tampons, contains a metal soap to increase its hydrophobic and alcohol-resisting properties |
-
1998
- 1998-12-24 TW TW87121653A patent/TW542859B/en not_active IP Right Cessation
- 1998-12-24 DE DE1998160335 patent/DE19860335B4/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| DE19860335B4 (en) | 2007-02-22 |
| DE19860335A1 (en) | 1999-07-01 |
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