JP3015420B2 - Vinyl chloride resin composition - Google Patents
Vinyl chloride resin compositionInfo
- Publication number
- JP3015420B2 JP3015420B2 JP20604690A JP20604690A JP3015420B2 JP 3015420 B2 JP3015420 B2 JP 3015420B2 JP 20604690 A JP20604690 A JP 20604690A JP 20604690 A JP20604690 A JP 20604690A JP 3015420 B2 JP3015420 B2 JP 3015420B2
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- chloride resin
- weight
- resin composition
- styrene
- 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 - Fee Related
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は塩化ビニル系樹脂組成物、とくには成形加工
性、曲げ弾性強度、耐熱性、耐衝撃性などが要求され
る、雨樋、窓枠などの建築材料、家具、屋内装置品、看
板などの屋外装置品などの各種成形品を得るのに好適な
塩化ビニル系樹脂組成物に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a vinyl chloride resin composition, particularly a rain gutter or a window which is required to have moldability, bending elastic strength, heat resistance, impact resistance and the like. The present invention relates to a vinyl chloride resin composition suitable for obtaining various molded products such as building materials such as frames, furniture, indoor equipment, and outdoor equipment such as signboards.
（従来の技術） 従来、雨樋、窓枠等の各種建材に多用されている硬質
塩化ビニル系樹脂成形品は低重合度の塩化ビニル系樹脂
から作られている。しかし、この成形品には耐衝撃性に
劣るため破損しやすい欠点がある。(Prior Art) Conventionally, hard vinyl chloride resin molded articles frequently used for various construction materials such as rain gutters and window frames are made of vinyl chloride resin having a low degree of polymerization. However, this molded article has a disadvantage that it is easily damaged due to poor impact resistance.
この改良を図ったものとして特開昭60−179443号公報
には、塩化ビニル系樹脂に塩素化ポリエチレンを添加混
合するものが示されている。しかし、この方法は耐衝撃
性について若干の改善がされるものの限界があり、却っ
て引張り弾性、曲げ弾性など剛性を損なうという欠点が
あった。Japanese Patent Application Laid-Open No. Sho 60-179443 discloses an improvement in which chlorinated polyethylene is added to a vinyl chloride resin and mixed. However, this method has a slight improvement in impact resistance, but has a limit, but rather has a drawback of impairing rigidity such as tensile elasticity and bending elasticity.
以上の不利にも拘らず、硬質塩化ビニル系樹脂成形品
はコストの安いことから、建具、家具等としても広く使
用されるようになってきた。これらの成形品は一般に形
状が複雑なことから、成形加工性と引張り弾性、曲げ弾
性などの剛性が必要とされ、耐衝撃性の向上も望まれて
いた。Despite the disadvantages described above, rigid vinyl chloride resin molded articles have come to be widely used as fittings, furniture and the like because of their low cost. Since these molded products generally have complicated shapes, they require molding workability and rigidity such as tensile elasticity and bending elasticity, and improvement in impact resistance has been desired.
（発明が解決しようとする課題） したがって、本発明の目的は、成形加工性、引張り弾
性、曲げ弾性などの剛性、耐衝撃性、耐熱性等に優れ、
各種建材、家具等として有用な硬質成形品を得るのに好
適な、塩化ビニル系樹脂組成物を提供しようとするもの
である。(Problems to be Solved by the Invention) Accordingly, an object of the present invention is to provide excellent moldability, rigidity such as tensile elasticity and bending elasticity, excellent impact resistance, heat resistance, and the like.
An object of the present invention is to provide a vinyl chloride resin composition suitable for obtaining a hard molded product useful as various building materials, furniture, and the like.
（課題を解決するための手段） 本発明は、上記目的達成のため研究を進めた結果達成
されたもので、平均重合度が1,300〜2,000の塩化ビニル
系樹脂100重量部と塩素化ポリエチレン６〜15重量部と
スチレン−ブタジエン−スチレンの直鎖型構造を有し、
スチレン／ブタジエン（重量比）が35/65〜65/35である
ブロック共重合体ゴム２〜７重量部とからなる塩化ビニ
ル系樹脂組成物としたことを要旨とするものである。(Means for Solving the Problems) The present invention has been achieved as a result of conducting research for achieving the above object, and 100 parts by weight of a vinyl chloride resin having an average degree of polymerization of 1,300 to 2,000 and chlorinated polyethylene 6 to Having a linear structure of 15 parts by weight and styrene-butadiene-styrene,
The gist is to provide a vinyl chloride resin composition comprising 2 to 7 parts by weight of a block copolymer rubber having a styrene / butadiene (weight ratio) of 35/65 to 65/35.
これを説明すると、まず本発明の樹脂組成物において
第１成分として用いられる塩化ビニル系樹脂は、平均重
合度が1,000〜2,500、好ましくは1,300〜2,000のもの
で、ポリ塩化ビニル、塩化ビニル−マレイミド共重合
体、エチレン−塩化ビニル共重合体などの塩化ビニル系
共重合体、塩素化ポリ塩化ビニルなどである。この平均
重合度が1,000未満のものは、耐衝撃強度、引張り弾
性、曲げ弾性などの剛性が劣り、また2,500を超えるも
のでは成形加工時の溶融樹脂温度を高くしないと加工性
が悪く、それによる高温のため熱劣化が著しくなって樹
脂の本来持っている物性が損なわれるようになる。To explain this, first, the vinyl chloride resin used as the first component in the resin composition of the present invention has an average degree of polymerization of 1,000 to 2,500, preferably 1,300 to 2,000, and comprises polyvinyl chloride, vinyl chloride-maleimide. Copolymers, vinyl chloride copolymers such as ethylene-vinyl chloride copolymer, and chlorinated polyvinyl chloride. If the average degree of polymerization is less than 1,000, the impact strength, tensile elasticity, bending elasticity, etc. are inferior, and if it exceeds 2,500, the processability is poor unless the molten resin temperature during molding processing is raised. Due to the high temperature, thermal degradation becomes remarkable, and the intrinsic properties of the resin are impaired.
第２成分としての塩素化ポリエチレンは上記塩化ビニ
ル系樹脂100重量部に対し６〜15重量部の割合で使用さ
れるが、これが６重量部未満では耐衝撃強度の向上が見
られず、また15重量部を超えると引張り弾性、曲げ弾性
などの剛性が低下して好ましくない。The chlorinated polyethylene as the second component is used in an amount of 6 to 15 parts by weight based on 100 parts by weight of the vinyl chloride resin, but if the amount is less than 6 parts by weight, no improvement in impact strength is observed. If the amount is more than the weight part, rigidities such as tensile elasticity and bending elasticity decrease, which is not preferable.
なお、上記塩素化ポリエチレンは塩素含有率25〜50％
のものが好ましい。The chlorinated polyethylene has a chlorine content of 25 to 50%.
Are preferred.
本発明の第３成分としてのブタジエンスチレンゴムは
ブタジエンとスチレンとの共重合によって得られるゴム
状物質であって、ポリスチレン−ゴム中間ブロック−ポ
リスチレンからなるブロック共重合体でＳ（ポリスチレ
ン）−Ｂ（ポリブタジエン）−Ｓ（ポリスチレン）の直
鎖型構造を有し、スチレン／ブタジエン（重量比）が35
/65〜65/35であるブロック共重合体ゴムであってこれは
加工時における流動性の面から好ましい。The butadiene styrene rubber as the third component of the present invention is a rubber-like substance obtained by copolymerizing butadiene and styrene, and is a block copolymer of polystyrene-rubber intermediate block-polystyrene and is S (polystyrene) -B ( It has a linear structure of (polybutadiene) -S (polystyrene) and has a styrene / butadiene (weight ratio) of 35
/ 65 to 65/35 block copolymer rubber, which is preferable from the viewpoint of fluidity during processing.
また、スチレンとブタジエンとの共重合比はスチレン
／ブタジエン（重量比）で25/75〜75/25、とくには35/6
5〜65/35が好ましい。また、200℃/5kg荷重のメルトイ
ンデックスは、加工時における流動性の点から1g以上/1
0分であるものを使用するのが好ましい。The copolymerization ratio of styrene and butadiene is 25/75 to 75/25 in styrene / butadiene (weight ratio), especially 35/6
5-65 / 35 is preferred. In addition, the melt index of 200 ° C / 5 kg load is 1 g or more / 1
It is preferred to use what is 0 minutes.
この第３成分の添加量は、塩化ビニル系樹脂100重量
部に対し２〜７重量部の割合で使用されるが、これが２
重量部未満では成形加工時における流動性が改善され
ず、７重量部を超えると引張り弾性、曲げ弾性などの剛
性、耐衝撃性が低下するので好ましくない。The third component is used in an amount of 2 to 7 parts by weight based on 100 parts by weight of the vinyl chloride resin.
If the amount is less than 7 parts by weight, the fluidity at the time of molding is not improved. If the amount exceeds 7 parts by weight, the rigidity such as tensile elasticity and bending elasticity and impact resistance are undesirably reduced.
本発明の塩化ビニル系樹脂組成物において一般に使用
される安定剤としては、二塩基性ステアリン酸鉛、ステ
アリン酸バリウム、ステアリン酸カルシウム、ステアリ
ン酸亜鉛などの金属石鹸安定剤、ジブチルすずラウレー
ト、ジオクチルすずマレート、ジブチルすずジラウリル
メルカプタイドなどの有機すず安定剤、三塩基性硫酸
鉛、けい酸鉛、二塩基性亜りん酸鉛などの鉛安定剤など
があり、これらは単独または２種以上の組合せで使用さ
れる。As the stabilizer generally used in the vinyl chloride resin composition of the present invention, dibasic lead stearate, barium stearate, calcium stearate, metal soap stabilizer such as zinc stearate, dibutyl tin laurate, dioctyl tin malate , Organic tin stabilizers such as dibutyltin dilauryl mercaptide, and lead stabilizers such as tribasic lead sulfate, lead silicate, and dibasic lead phosphite. These may be used alone or in combination of two or more. Used in.
なお本発明の組成物には、さらに必要に応じ、エポキ
シ化合物などの安定化助剤、ポリエチレンワックス、脂
肪酸アミド、脂肪酸と多価アルコールのエステル等の滑
剤、炭酸カルシウム、とくには軽質炭酸カルシウムなど
の無機充てん剤、離型剤、着色剤、抗酸化剤、紫外線吸
収剤、その他各種の添加剤等を配合しても差し支えな
い。The composition of the present invention may further include, if necessary, a stabilizing aid such as an epoxy compound, a polyethylene wax, a fatty acid amide, a lubricant such as an ester of a fatty acid and a polyhydric alcohol, calcium carbonate, and particularly light calcium carbonate. Inorganic fillers, release agents, coloring agents, antioxidants, ultraviolet absorbers, and other various additives may be added.
このようにして得られた本発明による塩化ビニル系樹
脂組成物は、高速ミキサーなどの通常の手段を用いて混
合し、粉末状またはペレット状にして、カレンダー成
形、押出成形、射出成形、ブロー成形などにより成形加
工されて、所望の形状の成形品とすることができる。The thus-obtained vinyl chloride resin composition according to the present invention is mixed using a conventional means such as a high-speed mixer, into a powder or pellets, and subjected to calendering, extrusion, injection molding, and blow molding. It can be formed into a desired shape by molding.
（実施例） 以下、本発明の具体的態様を実施例および比較例によ
り説明するが、本発明は以下の実施例の記載に限定され
るものではない。EXAMPLES Hereinafter, specific embodiments of the present invention will be described with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples.
下記の材料を用いて表に示す処方で実施例１〜６およ
び比較例１〜５の11種類の混合物を調製し、それぞれに
ついて６インチロールを用いて170℃で５分間混練した
後、厚さ1mmのシートを作成した。Using the following materials, 11 types of mixtures of Examples 1 to 6 and Comparative Examples 1 to 5 were prepared according to the formulation shown in the table, and each was kneaded at 170 ° C. for 5 minutes using a 6-inch roll. A 1mm sheet was created.
得られた各シートについて、それぞれ流動性試験、耐
衝撃性試験、耐熱性試験および曲げ試験を行い、これら
の結果を表に併記した。Each of the obtained sheets was subjected to a fluidity test, an impact resistance test, a heat resistance test, and a bending test, and the results are shown in a table.
（材料） ・塩化ビニル樹脂： TK− 800（平均重合度:800、信越化学工業（株）製） TK−1300（平均重合度:1,300、同前） TK−1700（平均重合度:1,700、同前） TK−2000（平均重合度:2,000、同前） TK−2500（平均重合度:2,500、同前） ・塩素化ポリエチレン： エラスレン301A（塩素含有率:30％、昭和電工（株）
製） ・ブタジエンスチレンゴム： カリフレックスTRKX1383（スチレン／ブタジエン＝40
/60、MI＝50、Ｓ−Ｂ−Ｓ直鎖型、シェル石油（株）
製） カリフレックスTR1101（スチレン／ブタジエン＝30/7
0、MI＜１、Ｓ−Ｂ−Ｓ直鎖型、同前） ・安定剤a: Ｔ−17MJ（有機すず安定剤、勝田化工社製） ・安定剤b: ステアリン酸カルシウム ・無機充てん剤c: ホワイトンSB（炭酸カルシウム、白石工業社製） ・滑 剤d: AC−6A（ポリエチレンワックス、アライドケミカル社
製） （試験法） ・流動性試験： 高化式フローテスター（島津製作所製）を用い、200
℃における荷重200kg/cm2で測定した。(Materials)-Vinyl chloride resin: TK-800 (average degree of polymerization: 800, manufactured by Shin-Etsu Chemical Co., Ltd.) TK-1300 (average degree of polymerization: 1,300, same as above) TK-1700 (average degree of polymerization: 1,700, same Before) TK-2000 (average degree of polymerization: 2,000, the same before) TK-2500 (average degree of polymerization: 2,500, the same before)-Chlorinated polyethylene: Eraslen 301A (chlorine content: 30%, Showa Denko KK)
・ Butadiene styrene rubber: Kariflex TRKX1383 (styrene / butadiene = 40
/ 60, MI = 50, SBS linear type, Shell Sekiyu KK
Made) CARIFLEX TR1101 (styrene / butadiene = 30/7)
0, MI <1, SBS linear type, same as above) Stabilizer a: T-17MJ (organic tin stabilizer, manufactured by Katsuta Kako Co., Ltd.) Stabilizer b: calcium stearate Inorganic filler c: Whiteton SB (calcium carbonate, manufactured by Shiraishi Industry Co., Ltd.) ・ Lubricant d: AC-6A (polyethylene wax, manufactured by Allied Chemical Co., Ltd.) (Test method) ・ Fluidity test: Using a Koka type flow tester (manufactured by Shimadzu Corporation) , 200
It was measured at a load of 200 kg / cm 2 at ° C.
・耐衝撃性試験： 前述したシートより厚さ3mmのプレス板を作製し、JIS
K−7110に基づいてアイゾット衝撃値を測定した。・ Impact resistance test: A pressed plate with a thickness of 3 mm is manufactured from the above-mentioned sheet, and JIS
Izod impact values were measured based on K-7110.
・耐熱性試験： 前述したシートより厚さ3mmのプレス板を作製し、JIS
K−7206のＡ法に基づいてビカット軟化温度を測定し
た。・ Heat resistance test: A 3mm-thick pressed plate is made from the above-mentioned sheet and JIS
The Vicat softening temperature was measured based on Method A of K-7206.
・曲げ弾性率試験： 前述したシートより厚さ4mmのプレス板を作製し、JIS
K−7203に基づいて曲げ弾性率を測定した。・ Bending elasticity test: A 4mm-thick press plate is made from the above-mentioned sheet and JIS
The flexural modulus was measured based on K-7203.
（発明の効果） 本発明による塩化ビニル系樹脂組成物は、加工成形
性、とくに高速押出しにおける成形性がよく、得られる
成形品は耐衝撃性、耐熱性および曲げ弾性などの機械的
強度に優れているので、雨樋、窓枠などの建築材料、家
具、屋内装置品、看板などの屋外装置品などの各種成形
品を得るのに好適で、その工業的利用価値は頗る高い。 (Effect of the Invention) The vinyl chloride resin composition according to the present invention has good processability, especially high-speed extrusion, and the resulting molded product has excellent mechanical strength such as impact resistance, heat resistance and bending elasticity. Therefore, it is suitable for obtaining various molded articles such as building materials such as rain gutters and window frames, furniture, indoor equipment, and outdoor equipment such as signboards, and the industrial use value thereof is extremely high.
フロントページの続き (56)参考文献 特開 昭58−57450（ＪＰ，Ａ) 特開 昭57−192444（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C08L 1/00 - 101/14 Continuation of the front page (56) References JP-A-58-57450 (JP, A) JP-A-57-192444 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C08L 1 / 00-101/14
Claims (1)
樹脂100重量部と塩素化ポリエチレン６〜15重量部とス
チレン−ブタジエン−スチレンの直鎖型構造を有し、ス
チレン／ブタジエン（重量比）が35/65〜65/35であるブ
ロック共重合体ゴム２〜７重量部とからなる塩化ビニル
系樹脂組成物。1. A linear structure of 100 parts by weight of a vinyl chloride resin having an average degree of polymerization of 1,300 to 2,000, 6 to 15 parts by weight of chlorinated polyethylene and styrene-butadiene-styrene, and a styrene / butadiene (weight ratio) A) a block copolymer rubber having a ratio of 35/65 to 65/35 in 2 to 7 parts by weight.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20604690A JP3015420B2 (en) | 1990-08-03 | 1990-08-03 | Vinyl chloride resin composition |
| CA 2048362 CA2048362A1 (en) | 1990-08-03 | 1991-08-02 | Polyvinyl chloride resin-based composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20604690A JP3015420B2 (en) | 1990-08-03 | 1990-08-03 | Vinyl chloride resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0489856A JPH0489856A (en) | 1992-03-24 |
| JP3015420B2 true JP3015420B2 (en) | 2000-03-06 |
Family
ID=16516987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20604690A Expired - Fee Related JP3015420B2 (en) | 1990-08-03 | 1990-08-03 | Vinyl chloride resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3015420B2 (en) |
-
1990
- 1990-08-03 JP JP20604690A patent/JP3015420B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0489856A (en) | 1992-03-24 |
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