JPH06316664A - Vinyl chloride sol composition - Google Patents
Vinyl chloride sol compositionInfo
- Publication number
- JPH06316664A JPH06316664A JP12994193A JP12994193A JPH06316664A JP H06316664 A JPH06316664 A JP H06316664A JP 12994193 A JP12994193 A JP 12994193A JP 12994193 A JP12994193 A JP 12994193A JP H06316664 A JPH06316664 A JP H06316664A
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl chloride
- vinyl chloride
- chloride resin
- sol composition
- weight
- 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.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば自動車の床裏部
の防錆を目的としたアンダーコート等に用いるのに好適
な塩ビゾル組成物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vinyl chloride sol composition suitable for use in, for example, an undercoat for the purpose of preventing rust on the underside of automobiles.
【０００２】[0002]
【従来の技術】自動車の車両の床裏部には、主に防錆の
目的でアンダーコート用塩ビゾルが塗布され、このアン
ダーコートは、中塗炉と上塗炉で焼付けられることによ
り物理性能が得られている。前記床裏部は接合部と接合
の無い一般部に分かれており、通常はアンダーコートと
して、塩ビゾルを接合部は１ｍｍ〜２ｍｍの厚膜で塗布
し、一般部は３００μｍ〜５００μｍの薄膜で塗布して
いる。2. Description of the Related Art An undercoating PVC sol is mainly applied to the underside of an automobile for the purpose of rust prevention, and this undercoat is baked in an intermediate coating furnace and an overcoating furnace to obtain physical performance. Has been. The underfloor part is divided into a joint portion and a non-joint general portion. Usually, as an undercoat, PVC sol is applied to the joint portion with a thick film of 1 mm to 2 mm, and the general portion is applied with a thin film of 300 μm to 500 μm. is doing.
【０００３】[0003]
【発明が解決しようとする課題】前記塩ビゾルは一般部
に於いて規定膜厚である３００μｍ〜５００μｍ程度に
均一に塗布されれば全く問題は無いが、従来技術では塗
り重ね部やロボット動作の難しい部位では、規定膜厚の
５〜６倍の厚さである１．５ｍｍ〜３．０ｍｍも塗布さ
れてしまう。しかしながら塩ビゾルは、基本的には３０
０μｍ〜５００μｍの薄膜塗布で高性能を発揮すること
を要求されているので、塩ビ樹脂がリッチな組成とされ
ているため、タレ止改質材としての充填剤の使用量が制
限されている。その結果、タレ限界の低下を招き、限度
を越えた膜厚になるとタレが発生し、例えば自動車組立
てラインでの使用に支障をきたす事がある。更に、チキ
ソ改質材としての充填剤の使用量も制限されることによ
り、塩ビ樹脂自体の影響が大きくなり、塩ビ樹脂特有の
ネバリによって、温度依存性が大きく、しかもスプレー
パターンの安定化の向上も難しい状況にあった。There is no problem if the above-mentioned polyvinyl chloride sol is applied uniformly to a prescribed film thickness of about 300 μm to 500 μm in the general part. In difficult areas, 1.5 mm to 3.0 mm, which is 5 to 6 times the specified film thickness, will be applied. However, PVC sol is basically 30
Since it is required to exhibit high performance in thin film coating of 0 μm to 500 μm, the vinyl chloride resin has a rich composition, so that the amount of the filler used as the anti-sagging modifier is limited. As a result, the sagging limit is lowered, and when the film thickness exceeds the limit, sagging occurs, which may hinder use in, for example, an automobile assembly line. Furthermore, the amount of filler used as a thixotropic modifier is also limited, and the influence of the PVC resin itself becomes large. Due to the peculiarity of the PVC resin, the temperature dependence is large and the stabilization of the spray pattern is improved. Was in a difficult situation.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
本発明の塩ビゾル組成物はペーストタイプとブレンドタ
イプのポリ塩化ビニル系樹脂と、可塑剤と、充填剤を主
成分としてなる塩ビゾル組成物であって、前記ブレンド
タイプのポリ塩化ビニル系樹脂として粒径３５μｍ以上
のものをポリ塩化ビニル系樹脂成分中３０重量％以上の
配合割合で含ませると共に前記充填剤としてシリカを１
重量％以上配合したことを特徴とする。In order to solve the above problems, the vinyl chloride sol composition of the present invention is a vinyl chloride sol composition containing a paste type and a blend type polyvinyl chloride resin, a plasticizer, and a filler as main components. The blend type polyvinyl chloride resin having a particle size of 35 μm or more is contained in the polyvinyl chloride resin component in an amount of 30% by weight or more, and silica is used as the filler.
It is characterized by being blended in an amount of not less than wt%.
【０００５】前記ポリ塩化ビニル系樹脂としては、例え
ばペーストタイプとして重合度８００〜１８００のも
の、ブレンドタイプとして重合度９００〜１５００のも
のが挙げられる。尚、前記ポリ塩化ビニル系樹脂のうち
ペーストタイプのものは、粒径０．１μｍ〜３μｍ程度
の従来のペーストタイプと同様のもので構わない。ま
た、前記ポリ塩化ビニル系樹脂のうちブレンドタイプ
は、粒径３５μｍ以上であることが必要で、３５μｍ〜
７０μｍの範囲のものが好ましい。これは、３５未満で
はチキソ性が小さく、また、７０μｍを越えるとスプレ
ー肌が悪くなるからである。また、このブレンドタイプ
のポリ塩化ビニル系樹脂の配合量はポリ塩化ビニル系樹
脂成分中３０重量％以上であることが必要で、３０重量
％〜６０重量％の範囲であることが好ましい。これは、
３０重量％未満では、ネバリ性が改善できずチキソ性不
足でスプレーパターン巾の安定性が妨げられ、また、６
０重量％を越えると物理性能で不足する部分が発生する
からである。尚、前記粒径３５μｍ以上のブレンドタイ
プのポリ塩化ビニル系樹脂は、前記配合量が含まれるの
であれば、粒径３５μｍ未満のブレンドタイプのポリ塩
化ビニル系樹脂と混合使用しても構わない。Examples of the polyvinyl chloride resin include a paste type having a degree of polymerization of 800 to 1800 and a blend type having a degree of polymerization of 900 to 1500. The paste type of the polyvinyl chloride resin may be the same as the conventional paste type having a particle size of about 0.1 μm to 3 μm. In addition, the blend type of the polyvinyl chloride resin is required to have a particle size of 35 μm or more.
It is preferably in the range of 70 μm. This is because if it is less than 35, the thixotropy is small, and if it exceeds 70 μm, the sprayed skin becomes poor. The blending amount of the polyvinyl chloride resin of this blend type needs to be 30% by weight or more in the polyvinyl chloride resin component, and is preferably in the range of 30% by weight to 60% by weight. this is,
If it is less than 30% by weight, the stickiness cannot be improved and the thixotropy is insufficient, which hinders the stability of the spray pattern width.
This is because if the amount exceeds 0% by weight, the physical performance may be insufficient. The blend type polyvinyl chloride resin having a particle size of 35 μm or more may be mixed with the blend type polyvinyl chloride resin having a particle size of less than 35 μm as long as the blending amount is included.
【０００６】また、前記シリカは塩ビゾル中に１重量％
以上配合することが必要で１重量％〜２重量％の範囲で
配合するのが好まし。これは１重量％未満であるとチキ
ソ性不足を生じ、また、２重量％を越えると粘度が高く
なりすぎるからである。また、充填剤は、チキソ性向上
と経済性を考えて、表面処理型の微粒子炭カルと超微粒
子型シリカを使用するのが好ましい。The silica is contained in the vinyl chloride sol in an amount of 1% by weight.
It is necessary to blend the above, and it is preferable to blend in the range of 1% by weight to 2% by weight. This is because if it is less than 1% by weight, thixotropy is insufficient, and if it exceeds 2% by weight, the viscosity becomes too high. Further, as the filler, it is preferable to use surface-treated fine particulate carbon carbide and ultrafine particulate silica in consideration of thixotropy improvement and economical efficiency.
【０００７】尚、本発明の塩ビゾル組成物は前記ブレン
ドタイプのポリ塩化ビニル系樹脂とシリカの配合以外
は、従来の塩ビゾル組成物と特に変わるものではないの
でその詳細な説明は省略するが、例えば、着色剤として
チタン白、カーボンブラック等を、薬品として亜鉛、カ
ルシウム、バリウム等を、密着成分としてポリアミド、
ブロックイソシアネート、アクリルフェノール、エポキ
シ等を、可塑剤としてフタル酸エステル系等を、また希
釈剤として脂肪族炭化水素等を使用する。The vinyl chloride sol composition of the present invention is the same as the conventional vinyl chloride sol composition except for the blending of the blend type polyvinyl chloride resin and silica, and a detailed description thereof will be omitted. , For example, titanium white as a colorant, carbon black or the like, zinc, calcium, barium or the like as a chemical, polyamide as an adhesion component,
Block isocyanate, acrylic phenol, epoxy, etc. are used, phthalate ester type etc. are used as a plasticizer, and aliphatic hydrocarbon etc. are used as a diluent.
【０００８】[0008]
【作用】従来、この種の塩ビゾルのタレを止め、スプレ
ーパターンの安定化を向上させる為の手段としては、基
本的には低剪断側の粘度を上げ高剪断側との差を大きく
する方法、いわゆるＴＩ値（チキソ値）を大きくする事
が行なわれていた。但し、低剪断側だけを上げたのでは
例えば自動車の組立てラインへの材料供給に於いてコン
テナよりタンクへ移す際に材料の供給が不足するという
問題が発生するため、低剪断側は略現状のままで高剪断
側の粘度を下げる方法をとる必要がある。そこで、従来
は塩ビ樹脂は粒径０．１μｍ〜３μｍのペーストタイプ
と粒径１５μｍ〜３０μｍのブレンドタイプを併用して
いた。この併用の目的はペーストタイプは主に物性向
上、ブレンドタイプは主に作業性の向上である。そこで
本発明は、ブレンドタイプのレジンの粒径を３５μｍ以
上、例えば３５μｍ〜７０μｍ程度に大きくすると共に
塩ビゾル中での比率を上げる事により容量当たりの液状
成分の比率を増加させ、まず高剪断側の粘度低下を図っ
た。しかし、これだけでは同時に低剪断側の粘度も低下
してタレが十分に改善されないため、前段の配合操作に
加え、塩ビゾル中のシリカを増量し低剪断側の粘度を増
加させ、ＴＩ値を向上させた。上記のようにして得られ
る本発明の塩ビゾルは、ＴＩ値向上によりタレ性が大幅
に改善され、スプレーパターンの安定化に寄与しライン
における適用上の問題点を解消することができる。In the past, as a means for stopping the sagging of this type of PVC sol and improving the stability of the spray pattern, basically, a method of increasing the viscosity on the low shear side and increasing the difference from the high shear side was used. The so-called TI value (thixo value) has been increased. However, if only the low shear side is raised, for example, in the material supply to the automobile assembly line, there is a problem that the material supply becomes insufficient when transferring it from the container to the tank, so the low shear side is almost the same as the current situation. It is necessary to take measures to lower the viscosity on the high shear side. Therefore, conventionally, a vinyl chloride resin has been used in combination with a paste type having a particle size of 0.1 μm to 3 μm and a blend type having a particle size of 15 μm to 30 μm. The purpose of this combination is to improve the physical properties of the paste type and to improve the workability of the blend type. Therefore, in the present invention, the particle size of the blend type resin is increased to 35 μm or more, for example, about 35 μm to 70 μm, and the ratio of the liquid component per volume is increased by increasing the ratio in the vinyl chloride sol. The viscosity was reduced. However, this alone also reduces the viscosity on the low shear side and does not sufficiently improve the sag. Therefore, in addition to the mixing operation in the previous step, the amount of silica in the PVC sol was increased to increase the viscosity on the low shear side and the TI value was improved. Let The vinyl chloride sol of the present invention obtained as described above has a drastic improvement in sagging property due to the improvement of the TI value, contributes to the stabilization of the spray pattern, and can solve the problems in application in the line.
【０００９】[0009]
【実施例】以下、実施例および比較例を基に本発明の塩
ビゾル組成物を説明する。樹脂成分として粒径１〜２μ
ｍのペーストタイプの塩化ビニル樹脂と、粒径１５〜３
０μｍのブレンドタイプの塩化ビニル樹脂と、粒径４０
〜５０μｍのブレンドタイプの塩化ビニル樹脂、充填剤
として表面処理炭酸カルウムとシリカ、さらに着色剤、
薬品、密着成分、可塑剤、希釈剤を下記表１に示す各種
配合割合で配合し、種々の塩ビゾル組成物を作成し、そ
の特性を試験した。その結果を表１に示す。EXAMPLES The vinyl chloride sol composition of the present invention will be described below based on Examples and Comparative Examples. Particle size of 1-2μ as resin component
m paste type vinyl chloride resin and particle size 15 to 3
0μm blend type vinyl chloride resin, particle size 40
~ 50 μm blend type vinyl chloride resin, surface treated calcium carbonate and silica as filler, and further colorant,
Chemicals, adhesion components, plasticizers, and diluents were mixed in various mixing ratios shown in Table 1 below to prepare various vinyl chloride sol compositions, and their properties were tested. The results are shown in Table 1.
【００１０】[0010]
【表１】 [Table 1]
【００１１】尚、試験と評価は次の通り行なった。 （１）粘度 低剪断時は、ＢＨ粘度計（２ＲＰＭ、７号ローター）を
用いて２０℃、０．４２ｓｅｃ-1の条件で測定した。３
５００〜５０００ｐｓであったものを“○”、その範囲
外のものを“×”とした。高剪断時は、圧力型押出粘度
計（８号キャピラリー）を用いて２０℃、１０4ｓｅｃ
-1の条件で測定した。６〜７．５ｐｓであったものを
“○”、その範囲外のものを“×”とした。ＴＩ値は上
記結果より、低剪断時／高剪断時の粘度比の値によって
評価した。５５０〜８００であったものを“○”、その
範囲外のものを“×”とした。 （２）貯蔵安定性 ３５℃で１０日間処理後、初期粘度と比較した。初期比
が４０％未満の粘度変化率であったものを“○”、４０
％以上を“×”とした。 （３）タレ性 電着板上、治具を使用し１０ｍｍφ半円ビート×１００
ｍｍにシールして、常温で３０分間垂直放置した。そし
て９５℃で８分間垂直処理後のタレを測定し、タレが２
ｍｍ未満であったものを“○”、２ｍｍ以上であったも
のを“×”とした。 （４）硬化物性 ２〜３ｍｍ厚のシートを、１３０℃で２０分間焼付後、
硬化物性を測定した。伸び率については１００％以上で
あったものを“○”、１００％未満であったものを
“×”とした。抗張力については５１ｋｇｆ／ｃｍ2 以
上であったものを“○”、５１ｋｇｆ／ｃｍ2 未満であ
ったものを“×”とした。 （５）接着力 １．０×２５×１００ｍｍの電着板を２枚使用し、材料
が３×２５×２５ｍｍになるようにシールし１３０℃で
２０分間処理後、常温で２４時間放置した。そして引張
り速度５０ｍｍ／ｍｉｎで接着力を測定した。また、こ
の処理板を４０℃の温水に１０日間浸漬し耐水接着力も
測定した。常態時および耐水後共に、３０ｋｇｆ／ｃｍ
2 以上で凝集破壊したものを“○”、３０ｋｇｆ／ｃｍ
2 未満で凝集破壊したものを“×”とした。 （６）スプレーパターンの安定性 １５℃、エアレスポンプ４５：１、高圧ホース３／８イ
ンチ×５ｍ、ノズル♯５３５、ノズル距離３０ｃｍ、圧
力（静圧）１１０ｋｇ／ｃｍ2 、ノズル移動速度３０ｃ
ｍ／ｓｅｃの条件下でのスプレーパターン幅を測定し
た。スプレーパターン幅が１５ｃｍ以上であったものを
“○”、１５ｃｍ未満であったものを“×”とした。The test and evaluation were conducted as follows. (1) Viscosity At low shear, a BH viscometer (2 RPM, No. 7 rotor) was used for measurement under the conditions of 20 ° C. and 0.42 sec −1 . Three
Those having a value of 500 to 5000 ps were designated as "O", and those outside the range were designated as "X". At the time of high shear, use a pressure type extrusion viscometer (No. 8 capillary) at 20 ° C. for 10 4 sec.
It was measured under the condition of -1 . Those having a value of 6 to 7.5 ps were designated as “◯”, and those outside the range were designated as “x”. From the above results, the TI value was evaluated by the value of the viscosity ratio at low shear / high shear. Those that were in the range of 550 to 800 were marked as “◯”, and those that were outside that range were marked as “x”. (2) Storage stability After treatment at 35 ° C for 10 days, the initial viscosity was compared. If the initial ratio was a viscosity change rate of less than 40%, "○", 40
% Or more was defined as "x". (3) Sagging property A 10 mmφ semicircle beat × 100 on the electrodeposition plate using a jig
It was sealed in mm and left standing vertically for 30 minutes at room temperature. Then, the sag after vertical processing at 95 ° C for 8 minutes was measured, and the sag was 2
Those that were less than mm were rated as “◯” and those that were at least 2 mm were rated as “x”. (4) Cured physical properties After baking a 2-3 mm thick sheet at 130 ° C. for 20 minutes,
Cured physical properties were measured. With respect to the elongation rate, those having an elongation rate of 100% or more were evaluated as “◯”, and those having an elongation rate of less than 100% were evaluated as “x”. Regarding the tensile strength, those having a tensile strength of 51 kgf / cm 2 or more were evaluated as “◯”, and those having a tensile strength of less than 51 kgf / cm 2 were evaluated as “x”. (5) Adhesive strength Two electrodeposited plates of 1.0 × 25 × 100 mm were used, and the material was sealed so as to have a size of 3 × 25 × 25 mm, treated at 130 ° C. for 20 minutes, and then left at room temperature for 24 hours. Then, the adhesive force was measured at a pulling speed of 50 mm / min. Further, this treated plate was immersed in warm water of 40 ° C. for 10 days, and the water-resistant adhesive strength was also measured. 30 kgf / cm both under normal conditions and after water resistance
“○” for cohesive failure at 2 or more, 30 kgf / cm
The one that was cohesively destroyed when it was less than 2 was designated as "x". (6) Stability of spray pattern 15 ° C., airless pump 45: 1, high pressure hose 3/8 inch × 5 m, nozzle # 535, nozzle distance 30 cm, pressure (static pressure) 110 kg / cm 2 , nozzle moving speed 30 c
The spray pattern width was measured under the condition of m / sec. The spray pattern having a width of 15 cm or more was evaluated as “◯”, and the spray pattern having a width of less than 15 cm was evaluated as “x”.
【００１２】前記表１から明らかなように、本発明の塩
ビゾル組成物は、比較例に比しＴＩ値が高く、タレ性、
スプレーパターン安定性に優れていることが明らかであ
る。As is clear from Table 1, the vinyl chloride sol composition of the present invention has a higher TI value, sagging property, and
It is clear that the spray pattern is excellent in stability.
【００１３】[0013]
【発明の効果】以上説明したように本発明の塩ビゾル組
成物は、タレ性が大幅に改善され、スプレーパターンの
安定性に優れ、例えば自動車組立てラインにおいてアン
ダコート用にロボット塗装された場合でも、薄膜で良好
な塗膜が得られるという効果を有する。Industrial Applicability As described above, the vinyl sol composition of the present invention has significantly improved sagging property and excellent spray pattern stability. For example, even when it is robot-coated for undercoating in an automobile assembly line. In addition, it has an effect that a good coating film can be obtained with a thin film.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｄ 5/08 ＰＱＥ 6904−4Ｊ 127/06 ＰＦＥ 9166−4Ｊ (72)発明者 桜井 正敏 神奈川県横須賀市田浦港町無番地 関東自 動車工業株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Internal reference number FI technical display location C09D 5/08 PQE 6904-4J 127/06 PFE 9166-4J (72) Inventor Masatoshi Sakurai Yokosuka, Kanagawa Prefecture No address in Minato-cho, Ichiura Within Kanto Automobile Industry Co., Ltd.
Claims (2)
塩化ビニル系樹脂と、可塑剤と、充填剤を主成分として
なる塩ビゾル組成物であって、前記ブレンドタイプのポ
リ塩化ビニル系樹脂として粒径３５μｍ以上のものをポ
リ塩化ビニル系樹脂成分中３０重量％以上の配合割合で
含ませると共に前記充填剤としてシリカを１重量％以上
配合したことを特徴とする塩ビゾル組成物。1. A polyvinyl chloride sol composition comprising a paste type and blend type polyvinyl chloride resin, a plasticizer, and a filler as main components, wherein the blend type polyvinyl chloride resin has a particle size of 35 μm. A polyvinyl chloride sol composition comprising the polyvinyl chloride resin component containing 30% by weight or more of the above and 1% by weight or more of silica as the filler.
のポリ塩化ビニル系樹脂は粒径が３５μｍ〜７０μｍで
あって、ポリ塩化ビニル系樹脂成分中３０重量％〜６０
重量％の配合割合としたことを特徴とする請求項１記載
の塩ビゾル組成物。2. The blend type polyvinyl chloride resin having a particle diameter of 35 μm or more has a particle diameter of 35 μm to 70 μm, and 30% by weight to 60% by weight in the polyvinyl chloride resin component.
2. The vinyl chloride sol composition according to claim 1, wherein the blending ratio is wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12994193A JPH06316664A (en) | 1993-05-06 | 1993-05-06 | Vinyl chloride sol composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12994193A JPH06316664A (en) | 1993-05-06 | 1993-05-06 | Vinyl chloride sol composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06316664A true JPH06316664A (en) | 1994-11-15 |
Family
ID=15022224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12994193A Pending JPH06316664A (en) | 1993-05-06 | 1993-05-06 | Vinyl chloride sol composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06316664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100870908B1 (en) * | 2008-01-16 | 2008-11-28 | 한국건설기술연구원 | Composition for adiabatic material with hollow micro silica capsule, adiabatic material using thereit and preparation method of the adiabatic material, and adiabatic film of glass in building |
| US11773306B2 (en) | 2019-10-01 | 2023-10-03 | Parker Asahi Co., Ltd. | Vinyl chloride sol-based ultraviolet curable sealing material |
-
1993
- 1993-05-06 JP JP12994193A patent/JPH06316664A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100870908B1 (en) * | 2008-01-16 | 2008-11-28 | 한국건설기술연구원 | Composition for adiabatic material with hollow micro silica capsule, adiabatic material using thereit and preparation method of the adiabatic material, and adiabatic film of glass in building |
| US11773306B2 (en) | 2019-10-01 | 2023-10-03 | Parker Asahi Co., Ltd. | Vinyl chloride sol-based ultraviolet curable sealing material |
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