JPS5913338B2 - mortar complex - Google Patents
mortar complexInfo
- Publication number
- JPS5913338B2 JPS5913338B2 JP8847475A JP8847475A JPS5913338B2 JP S5913338 B2 JPS5913338 B2 JP S5913338B2 JP 8847475 A JP8847475 A JP 8847475A JP 8847475 A JP8847475 A JP 8847475A JP S5913338 B2 JPS5913338 B2 JP S5913338B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- vinyl acetate
- mortar
- emulsion
- reinforced plastics
- 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
Links
- 239000004570 mortar (masonry) Substances 0.000 title description 9
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 28
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 28
- 239000000839 emulsion Substances 0.000 claims description 25
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 12
- 239000005977 Ethylene Substances 0.000 claims description 12
- 239000011433 polymer cement mortar Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 10
- 229920001038 ethylene copolymer Polymers 0.000 claims description 10
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 11
- 239000011083 cement mortar Substances 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 229920000126 latex Polymers 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- HDNHWROHHSBKJG-UHFFFAOYSA-N formaldehyde;furan-2-ylmethanol Chemical compound O=C.OCC1=CC=CO1 HDNHWROHHSBKJG-UHFFFAOYSA-N 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】
本発明はエチレン含量１０〜３０％（重量％、以下同様
）の酢酸ビニル−エチレン共重合体エマルジョンをセメ
ントに対し、樹脂固形分５〜４０％混入したポリマーセ
メントモルタルを繊維強化プラスチックス成型物にコー
ティングしてなる複合体に関するものである。Detailed Description of the Invention The present invention provides a polymer cement mortar in which a vinyl acetate-ethylene copolymer emulsion with an ethylene content of 10 to 30% (wt%, the same shall apply hereinafter) is mixed into cement with a resin solid content of 5 to 40%. This invention relates to a composite formed by coating a fiber-reinforced plastic molded product.
繊維強化プラスチックスはガラス繊維のような繊維質を
ポリエステル樹脂、エポキシ樹脂、フェノール樹脂等で
補強した複合体であり、約十数年前より「鉄より強く、
アルミより軽い」というキヤッチフレーズで販売されて
おり、現在では多くの分野で幅広く使用されている。Fiber-reinforced plastics are composite materials made by reinforcing fibers such as glass fibers with polyester resin, epoxy resin, phenolic resin, etc.
It is sold with the catchphrase "lighter than aluminum" and is now widely used in many fields.
しかし、特にパイプ、タンクに用いられる場合、繊維強
化プラスチックスは弾性率が低く、非常にたわみやすい
欠点があり、また耐熱性も比較的良好であるが耐炎性に
劣つている。さらに高温では強度が低下し、一般には１
６０℃程度が使用限界とされている。However, especially when used for pipes and tanks, fiber-reinforced plastics have the disadvantage of having a low elastic modulus and being extremely flexible, and although they have relatively good heat resistance, they are inferior in flame resistance. Furthermore, at high temperatures the strength decreases, generally 1
The operating limit is around 60°C.
現状では上記欠５ 点をカバーするため石綿で保護する
ようにしているが、作業者の肺ガン等が大きな問題とな
つている。また石綿以外の方法としてセメントモルタル
を繊維強化プラスチックスにコーティングすれば、１０
耐炎性およびたわみ性等が改良できるという考え方もあ
つたが、セメントモルタルは繊維強化プラスチックスに
対し接着性に劣り、またセメントモルタルは乾燥養生で
十分な機械強度を発現しない等の欠点があつたゝめ実際
には使用され得ない。Currently, asbestos is used for protection to cover the above five deficiencies, but lung cancer among workers has become a major problem. In addition, as a method other than asbestos, if cement mortar is coated on fiber-reinforced plastics, the
Although there was an idea that flame resistance and flexibility could be improved, cement mortar had disadvantages such as inferior adhesion to fiber-reinforced plastics, and cement mortar did not develop sufficient mechanical strength after dry curing. It cannot actually be used.
１５−方、セメントモルタルとポリマーエマルジョンの
混合物はポリマーセメントモルタルと言われるものであ
り、ポリマーエマルジョンとしてはゴムラテックス、酢
酸ビニルエマルジョン、アクリル系エマルジョン等があ
り、これらを用いてセメノ０ ントモルタルの引張およ
び曲げ強度、耐衝撃性、耐ヒビ割れ性等を改良する事は
一般に良く知られていろ。On the other hand, a mixture of cement mortar and polymer emulsion is called polymer cement mortar, and polymer emulsions include rubber latex, vinyl acetate emulsion, acrylic emulsion, etc. It is generally well known that it improves bending strength, impact resistance, cracking resistance, etc.
本発明者らは繊維強化プラスチックスの耐炎性、たわみ
性等を改良すべく種々研究を重ね、繊維強ソ５ 化プラ
スチックス表面に特定のポリマーエマルジョンを混入し
たセメントモルタルをコーティングすることによつて、
繊維強化プラスナツクスの耐炎性、たわみ性等が改良さ
れることを発見し、本発明に到着した。The present inventors have conducted various studies to improve the flame resistance, flexibility, etc. of fiber-reinforced plastics, and by coating the surface of fiber-reinforced plastics with cement mortar mixed with a specific polymer emulsion. ,
We have discovered that the flame resistance, flexibility, etc. of fiber-reinforced plastic nuts can be improved, and have arrived at the present invention.
３０すなわち本発明は、エチレン１０〜３０％の酢酸ビ
ニルエチレン共重合体エマルジョンをセメントに対し樹
脂固形分で５〜４０％混入してなるポリマーセメントモ
ルタルを、繊維強化プラスチックスにコーティングする
ことにより、コーテイン３５ グ層と繊維強化プラスチ
ックスは特に接着剤を必要とせず、またプライマー処理
も不用で、さらに乾燥養生でコーティング層は十分な機
械的強度が発現する。30 That is, in the present invention, by coating fiber-reinforced plastics with a polymer cement mortar in which a vinyl acetate ethylene copolymer emulsion containing 10 to 30% ethylene is mixed with the cement in a resin solid content of 5 to 40%, The coating layer and fiber-reinforced plastics do not require any special adhesive or primer treatment, and the coating layer develops sufficient mechanical strength after drying.
得られたモルタル一繊維強化プラスチツクス複合体は耐
炎性が十分であり、機械的強度は繊維強化プラスチツク
スとポリマーセメントモルタルの和で増大し、さらにポ
リマーセメントモルタル層コーテイングにより繊維強化
プラスチツクスのたわみ防止が可能である。モルタル一
繊維強化プラスチツクス複合体は一般には、パイプ、板
の形で複合体となつており、これを加工して実際は使わ
れる事が多いが、複雑な構造物の場合等はその現場で複
合体にされる事もある。The resulting mortar-fiber-reinforced plastics composite has sufficient flame resistance, the mechanical strength is increased by the sum of the fiber-reinforced plastic and the polymer cement mortar, and the polymer-cement mortar layer coating further reduces the deflection of the fiber-reinforced plastic. Prevention is possible. Mortar-fiber-reinforced plastic composites are generally made into composites in the form of pipes or plates, and are often processed and used, but in the case of complex structures, they are composited on-site. Sometimes it is done to the body.
繊維強化プラスチツクスのコーテイング材料として、ゴ
ムラテツクス、酢酸ビニルエマルジヨン、アクリル系エ
マルジヨンがある。しかし、ゴムラテツクスを用いたポ
リマーセメントモルタルは耐候性に劣る。また酢酸ビニ
ルエマルジヨンを用いた場合、セメントによる耐アルカ
リ性および耐候性に劣るため耐久性が不十分であり、さ
らに温度に対して敏感で特に低温時にはモルタル層の強
度低下のためコーテイング層としては使用されにくい。
アクリル系エマルジヨンは特有な不快臭のため公害の心
配があり、また熱時の耐久性に劣る。本発明における繊
維強化プラスチツクスはその全般を指すものと理解され
るべきである。Coating materials for fiber-reinforced plastics include rubber latex, vinyl acetate emulsion, and acrylic emulsion. However, polymer cement mortar using rubber latex has poor weather resistance. Furthermore, when vinyl acetate emulsion is used, its durability is insufficient because it is inferior to cement's alkali resistance and weather resistance, and it is also sensitive to temperature, which reduces the strength of the mortar layer especially at low temperatures, so it cannot be used as a coating layer. Hard to get.
Acrylic emulsions have a unique unpleasant odor, so there is a concern about pollution, and they also have poor durability when exposed to heat. The term "fiber-reinforced plastics" in the present invention should be understood to refer to all of them.
繊維強化プラスチツクスには種々の補強材と種々の合成
樹脂との組合せがあり、代表的なものとしては補強材と
してガラス繊維を、合成樹脂としてポリエステル樹脂を
組合せたものがあるが、このほかにも補強材としてカー
ボン繊維、金属繊維、合成樹脂、アスベスト等を、合成
樹脂としてはエポキシ樹脂、フエノール樹脂、フラン樹
脂、ケイ素樹脂、ポリアミド樹脂、ポリアセタール樹脂
、ポリカーボネート樹脂、ＡＢＳ樹脂等を使用したもの
が一般に使用されている。本発明における酢酸ビニル−
エチレン共重合体エマルジヨンは適当な乳化剤および保
護コロイドを用いて酢酸ビニルを乳化せしめ、重合触媒
下にエチレンを圧入して加圧下に共重合する乳化重合法
により製造される。Fiber-reinforced plastics come in combinations of various reinforcing materials and various synthetic resins, and a typical example is one that combines glass fiber as a reinforcing material and polyester resin as a synthetic resin, but there are also Also, carbon fibers, metal fibers, synthetic resins, asbestos, etc. are used as reinforcing materials, and synthetic resins include epoxy resins, phenol resins, furan resins, silicon resins, polyamide resins, polyacetal resins, polycarbonate resins, ABS resins, etc. Commonly used. Vinyl acetate in the present invention
Ethylene copolymer emulsion is produced by an emulsion polymerization method in which vinyl acetate is emulsified using a suitable emulsifier and protective colloid, and ethylene is forced into a polymerization catalyst and copolymerized under pressure.
本発明ではエチレン、酢酸ビニルの共重合体エマルジヨ
ンに限定されるものではなく第３成分を１０％以下含有
する三元系共重合体エマルジヨンが用いられてもよい。
その第３成分としては塩化ビニル、アクリル酸、アクリ
ルアミド、グリシジルメタアクリレート、メチルメタア
クリレート等があげられる。酢酸ビニル−エチレン共重
合体エマルジヨン中のエチレン含量は１０〜３０％が必
要で、エチレン含量が１０％以下では耐水性、耐アルカ
リ性が改良できず、３０％を超えると耐水性、耐アルカ
リ性はさらに改良されるもの匁ポリマーセメントモルタ
ルの機械的強度が低下し、特に熱時にその傾向が強い。The present invention is not limited to copolymer emulsions of ethylene and vinyl acetate, but terpolymer emulsions containing 10% or less of a third component may be used.
Examples of the third component include vinyl chloride, acrylic acid, acrylamide, glycidyl methacrylate, and methyl methacrylate. The ethylene content in the vinyl acetate-ethylene copolymer emulsion must be 10 to 30%; if the ethylene content is less than 10%, the water resistance and alkali resistance cannot be improved, and if it exceeds 30%, the water resistance and alkali resistance will deteriorate further. What can be improved: The mechanical strength of momme polymer cement mortar decreases, especially when heated.
ポリマーセメントモルタル中の酢酸ビニル−エチレン共
重合体エマルジヨン量は、ポリマーセメントモルタルと
繊維強化プラスチツクスの接着性を十分保持し、さらに
モルタルの機械的強度も十分保持するためには、セメン
トに対し樹脂固形分として５〜４０％の範囲が必要で、
さらに好ましくは１０〜３０％である。The amount of vinyl acetate-ethylene copolymer emulsion in the polymer cement mortar must be adjusted to maintain sufficient adhesion between the polymer cement mortar and fiber-reinforced plastics, and to maintain sufficient mechanical strength of the mortar. A solid content of 5 to 40% is required,
More preferably, it is 10 to 30%.
５％より少ない量では繊維強化プラスチツクに対し十分
な接着性を持たないし、また乾燥養生において機械的に
十分なモルタルを得ることができない。If the amount is less than 5%, it will not have sufficient adhesion to fiber-reinforced plastics, and it will not be possible to obtain a mechanically sufficient mortar during dry curing.
一方４０％より多い量であれば接着性はさらに向上する
がモルタルの硬化が遅くなり、また熱時の強度が非常に
劣るようになる。繊維強化プラスチツクスに対するモル
タルのコーテイング厚みは、繊維強化プラスチツクスの
耐炎性、たわみ防止性を十分保持するために１〜２０ｎ
１ｎ１が必要で、より好ましいと思われるが、繊維強化
プラスチツクスの大きさ、厚み等によつて適当に決めら
れるものである。On the other hand, if the amount is more than 40%, the adhesion will further improve, but the curing of the mortar will be slow and the strength when heated will be very poor. The coating thickness of mortar on fiber-reinforced plastics is 1 to 20 nm in order to sufficiently maintain flame resistance and anti-sag properties of fiber-reinforced plastics.
1n1 is necessary and considered to be more preferable, but it can be determined appropriately depending on the size, thickness, etc. of the fiber-reinforced plastic.
次に実施例をあげて本発明について説明するが、本発明
の内容がこれによつて限定されるものでない〜
実施例 １
Ａ酢酸ビニル−エチレン共重合体エマルジヨンの調整酢
酸ビニル１００部（重量部、以下同様）、水１１０部、
平均重合度８００でケン化度９０モル％のポリビニルア
ルコール５部をオートクレーブに仕込み、酢酸ビニルを
乳化しつＸ６Ｏ℃まで昇温し４５ｋｇ／Ｃｄになるまで
エチレンを圧入した。Next, the present invention will be explained with reference to examples, but the content of the present invention is not limited thereby. Example 1 Preparation of A vinyl acetate-ethylene copolymer emulsion 100 parts vinyl acetate (parts by weight) , hereinafter the same), 110 parts of water,
Five parts of polyvinyl alcohol having an average degree of polymerization of 800 and a degree of saponification of 90 mol % was charged into an autoclave, and while vinyl acetate was emulsified, the temperature was raised to X6O 0 C and ethylene was pressurized until the concentration reached 45 kg/Cd.
次に酢酸ビニルへのエチレンの溶解が飽和に達するまで
４５ｋｇ／Ｃｄのエチレン圧を保つたまＸ撹拌を続けた
後、過硫酸カリウムを添加して重合を開始させた。重合
は約５時間にわたつて行なわれ、残留モノマーが０．５
％以下になつたことを確認後、冷却して重合を終了した
。得られた酢酸ビニル一エチレン共重合体エマルジヨン
の共重合体組成はエチレン１８％、酢酸ビニル８２％で
あり、エマルジヨンの平均粒子径は０．６７μ、固形分
は５４．２０１）、粘度１７２０ｃｐｓＣＢＬ６０ｒｐ
ｍ１２５℃）であつた。Ｂ．セメントモルタルの調整と
コーテイング第１表に示されるごとく、セメントに対し
樹脂固形分が２０％になるように普通ポルトランドセメ
ントと豊浦標準砂の混合物にエマルジヨンを混入、混練
した。Next, stirring was continued while maintaining the ethylene pressure of 45 kg/Cd until the dissolution of ethylene in vinyl acetate reached saturation, and then potassium persulfate was added to initiate polymerization. Polymerization was carried out for approximately 5 hours, with residual monomer remaining at 0.5
% or less, the polymerization was completed by cooling. The copolymer composition of the obtained vinyl acetate-ethylene copolymer emulsion was 18% ethylene and 82% vinyl acetate, the average particle diameter of the emulsion was 0.67μ, the solid content was 54.201), and the viscosity was 1720cpsCBL60rp.
m125°C). B. Preparation and Coating of Cement Mortar As shown in Table 1, emulsion was mixed and kneaded into a mixture of ordinary Portland cement and Toyoura standard sand so that the resin solid content was 20% based on the cement.
得られたポリマーセメントモルタルをモルタルガンで繊
維強化プラスチツクスシート（平織クロスのガラス繊維
をポリエステル樹脂で補強した６胴厚のもの）に約３価
淳にコーテイングし、４週間室内に放置し養生を行ない
複合体を製造した。The resulting polymer cement mortar was coated with a mortar gun on a fiber-reinforced plastic sheet (6-thickness made of plain-woven cloth glass fibers reinforced with polyester resin) to a thickness of about 30%, and left indoors for 4 weeks to cure. A composite was prepared.
複合体は接着性を主体に曲げ強度、耐炎性およびたわみ
性の測定を行なつた。たマし接着性はプリケツトモール
ド（ＡＳＴＭ）に繊維強化プラスチツクスをサンドイツ
チして、引張により測定した。なお対照例として、エマ
ルジヨンを全く添加しない普通モルタル（対照例１）も
同様に実１験を行なつた。The composites were mainly measured for adhesion, bending strength, flame resistance, and flexibility. Tamper adhesion was measured by sandwiching the fiber-reinforced plastic in a pricket mold (ASTM) and tensile strength. As a control example, an experiment was similarly conducted using a normal mortar (Control Example 1) to which no emulsion was added.
※） 熱で剥離してしまうため耐炎性が ないことを示す。*) Flame resistance is poor because it peels off due to heat. Indicates that there is no
※※）応力が加えられた時にコーテイン グ層が剥離してしまうためたわみ性 がないことを示す。※※）Cortein when stress is applied Flexibility due to peeling of the adhesive layer Indicates that there is no
表中、１）〜５）について。Regarding 1) to 5) in the table.
１） プリケツトモールド（ＡＳＴＭ） に繊維強化プラスチツクスをサンド イツチされたものを、室温で引張強 度を測定する。1) Pricket mold (ASTM) sandwich fiber-reinforced plastics to The tensile strength of the exposed material at room temperature is measure degree.
２） 上記の引張強度の測定を７０℃で 行なう。2) Measurement of the above tensile strength at 70℃ Let's do it.
３） ＡＳＴＭ．Ｄ●７５７に準じた炎 で、モルタル層の破壊状況を観察し、 評価は次のようにする。3) ASTM. D●Flame according to 757 Observe the state of destruction of the mortar layer, The evaluation is as follows.
変化なし、ヒビ割杜、奇くれ生じ ○ △ る、剥離してしまう × ４） 弾性率測定により判定する。No change, cracks, warping ○ △ It peels off × 4) Determine by measuring elastic modulus.
繊維強化プラスチツクスだけと比較 して非常にすぐれる（○）、すぐれ る（△）、差なし（×） ５） ３点負荷法によりオートグラフ （島津１Ｓ−５０００）を用いて行 なう。Comparison with fiber-reinforced plastics only Very good (○), excellent Yes (△), No difference (×) 5) Autograph using 3-point loading method (Shimadzu 1S-5000) Now.
第２表に示すように酢酸ビニル−エチレン共重合体エマ
ルジヨンを用いたものは、繊維強化プラスチツクスに対
し優れた接着性を示し、耐炎性、たわみ性も改良してい
ることが明らかである。As shown in Table 2, it is clear that the vinyl acetate-ethylene copolymer emulsion exhibits excellent adhesion to fiber-reinforced plastics and also has improved flame resistance and flexibility.
実施例２〜３、対照例２〜３酢酸ビニルとエチレンの割
合を９５：５（対照例２）、９０：１０（実施例２）、
７５：２５（実施例３）、６０：４０（対照例３，）に
変更した酢酸ビニル−エチレン共重合体エマルジヨンを
用いたほかは実施例１と同様に複合体を製造し、その性
能を測定した。Examples 2-3, Control Examples 2-3 The ratio of vinyl acetate and ethylene was 95:5 (Control Example 2), 90:10 (Example 2),
A composite was produced in the same manner as in Example 1, except that the vinyl acetate-ethylene copolymer emulsion was changed to 75:25 (Example 3) and 60:40 (Control Example 3), and its performance was measured. did.
実１験結果は第３表に示す。表中６）について。６）
６７ｇ鋼球（径２．５ｃ［ｎ）で破壊する高さを示す。The results of the first experiment are shown in Table 3. Regarding 6) in the table. 6)
The height at which a 67g steel ball (diameter 2.5c [n) breaks] is shown.
対照例２は耐衝撃性および熱時の 接着性に劣り、また対照例３は熱時 の接着性およびたわみ性に劣る。Control example 2 has impact resistance and heat resistance. Poor adhesion, and control example 3 Poor adhesion and flexibility.
実施例４〜５、対照例４
実施例１で用いたエマルジヨンをセメントに対し１０％
（実施例４）、３０％（実施例５）、５０％（対照例４
）を混入し、フロー値を１６０に調整し、実施例１と同
様に複合体の製造を行ない、その性能を測定した。Examples 4 to 5, Comparative Example 4 The emulsion used in Example 1 was added at 10% to the cement.
(Example 4), 30% (Example 5), 50% (Control example 4)
), the flow value was adjusted to 160, a composite was produced in the same manner as in Example 1, and its performance was measured.
実験結果を第４表に示表中７）について７） ＪＩＳ．
Ｒ５２Ｏｌ凝結試験によ
り始発測定を示す。The experimental results are shown in Table 4 Regarding 7) in the table 7) JIS.
Initial measurements are shown by R52Ol condensation test.
対照例４は熱時の接着性および硬 化時間に劣る。Comparative Example 4 has high adhesion and hardness when heated. Inferior to conversion time.
Claims (1)
レン共重合体エマルジョンをセメントに対し、樹脂固形
分５〜４０重量％混入したポリマーセメントモルタルを
繊維強化プラスチックス成型物にコーティングしてなる
複合体。1. A composite formed by coating a fiber-reinforced plastic molded product with a polymer cement mortar in which a vinyl acetate-ethylene copolymer emulsion with an ethylene content of 10 to 30% by weight is mixed with cement and a resin solid content of 5 to 40% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8847475A JPS5913338B2 (en) | 1975-07-18 | 1975-07-18 | mortar complex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8847475A JPS5913338B2 (en) | 1975-07-18 | 1975-07-18 | mortar complex |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5212233A JPS5212233A (en) | 1977-01-29 |
| JPS5913338B2 true JPS5913338B2 (en) | 1984-03-29 |
Family
ID=13943761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8847475A Expired JPS5913338B2 (en) | 1975-07-18 | 1975-07-18 | mortar complex |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5913338B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2718626C2 (en) * | 1977-04-27 | 1982-08-12 | Heidelberger Zement Ag, 6900 Heidelberg | Laminated composite panel |
| AU594694B2 (en) * | 1985-08-06 | 1990-03-15 | Onoda Cement Co., Ltd. | Method of forming protective layer on concrete or mortar |
| AU602943B2 (en) * | 1986-11-13 | 1990-11-01 | Onoda Cement Co., Ltd. | Process for producing corrosion-resistant concrete or mortar |
| JP2553492Y2 (en) * | 1991-10-07 | 1997-11-05 | 株式会社マキタ | Hook device in power tool |
-
1975
- 1975-07-18 JP JP8847475A patent/JPS5913338B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5212233A (en) | 1977-01-29 |
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