JP2002212582A5 - - Google Patents

Description

Examples of anionic surfactants include stearic acid, sodium stearate, potassium stearate, ammonium stearate, stearyl mercaptan, stearyl sulfate sodium salt, stearyl sulfate calcium salt, stearyl ether sulfate sodium salt, stearyl ether sulfate calcium salt, stearyl. Ether sulfate ammonium salt, dioctyl sulfosuccinic acid, dioctyl sulfosuccinate sodium salt, dioctyl sulfosuccinate calcium salt, dioctyl sulfosuccinate ammonium salt, oleic acid, sodium oleate, calcium oleate, ammonium oleate, Oleyl sulfate sodium salt, oleyl sulfate calcium , Oleyl sulphates en Monumentale um salts, oleyl ether sulfates isocyanatomethyl Liu unsalted, stearyl ether sulfate Karyuumu salts, stearyl ether sulfate en Monumentale um salts, palmitic acid, Natoryuumu palmitate, Karyuumu palmitate, Anmonyuumu palmitate, cetyl mercaptan, palmityl sulfates isocyanatomethyl Liu unsalted, Parumichirusa Le phosphate Karyuumu salts, palmityl sulfates en Monumentale um salts, dipalmityl sulfosuccinic acid, dipalmityl sulfosuccinic acid Natoryuumu salt, Jiparumichi Le sulfosuccinic acid Karyuumu salt, Jiparumichi Le sulfosuccinic acid Anmonyuumu salts, lauric acid, Natoryuumu lauric acid, lauric Acidium, ammonium laurate, lauryl mercap Down, lauryl sulfate diisocyanato Liu salt-free, lauryl sulfate Karyuumu salt, lauryl sulfate Anne Monumentale um salt, lauryl ether sulfate isocyanatomethyl Liu salt-free, lauryl ether sulfate Karyuumu salt, lauryl ether sulfate Anne Monumentale um salt, dilauryl sulfosuccinic acid, Natoryuumu dilauryl sulfosuccinic acid Salt, calium dilauryl sulfosuccinate, ammonium dioctyl sulfosuccinate, oleyl sarcosine, and sauroyl sarcosinate, among others, are preferably used.

Amphoteric types of surfactants, lauryl mono alanate isocyanatomethyl Liu unsalted, lauryl mono alanate Karyuumu salts, lauryl mono alanate ammoxidation two Umushio, lauryl Giara sulfonate diisocyanatohexane Liu unsalted, lauryl Giara sulfonate Karyuumu salts, lauryl Giara sulfonates en Monumentale um salts, lauryl amide acetate Natoryuumu salts, lauryl amido Karyuumu salts, and the like lauryl amide en Monumentale um salts, it is preferable to use lauryl Giara sulfonate diisocyanatohexane Liu arm salts among.

The structural formula of polyoxyethylene stearyl ether is C ₁₈ H ₃₇ O (CH ₂ CH ₂ O) _n H, and the structural formula of stearylamine is C ₁₈ H ₃₇ NH ₂ It is.

であり、オレイルアミンの構造式はＣ₁₈Ｈ₃₅ＮＨ₂である。 Example 2
In Example 2, as in Example 1, the hydrocarbon-based material was composed of petrolatum, and the surfactants were two kinds of nonionic surfactants of polyoxyethylene olein ether and polyoxyethylene sorbitan monostearate; A mixture of three fatty acid amines, oleylamine, is used. The structural formula of polyoxyethylene oleyl ether is C ₁₇ H ₃₅ O (CH ₂ CH ₂ O) _n H, and the structural formula of polyoxyethylene sorbitan monostearate is

, And the structural formula of oleylamine Ru C ₁₈ H ₃₅ NH ₂ der.

である。なお、アルキルジアラネート塩の構成式におけるＲは炭素数８〜１４のアルキル基、ｍとｎは１又は２の整数、Ｍはアルカリ金属である。
ラウリルジアラネートナトリウム塩の構造式は、

である。 Example 3
In Example 3, the hydrocarbon-based material is composed of paraffin, and the surfactant is a mixture of nonionic, cationic and amphoteric surfactants. using one of the polyoxyethylene stearyl ether, the cationic surfactant using octadecylamine acetate, are used Lau Li Luzia La sulfonate sodium salt is alkyl Giara sulfonate sodium salt amphoteric type of surfactants . The structural formula of octadecylamine acetate is C ₁₈ H ₃₇ NH ₂ CH ₃ COOH, and the structural formula of alkyl diallanate salt is

It is. In the constitution formula of the alkyl diallanate salt , R is an alkyl group having 8 to 14 carbon atoms, m and n are integers of 1 or 2, and M is an alkali metal.
The structural formula of lauryl dialanate sodium salt is

It is.

These are emulsified with water deionized by ion exchange. The proportions of these paraffin and nonionic, cationic and anionic surfactants are as follows, the remainder being water.
Paraffin 25.0% by weight
1.5% by weight of polyoxyethylene stearyl ether
Octadezylamine acetate 1.0% by weight
Raurirujia La sulfonate sodium salt 0.5 wt%

Then, for these samples, the changes in the coefficient of friction and the contact resistance before and after the corrosion test were measured. In the corrosion test, a sample of the gold-plated terminal was subjected to a sulfur dioxide gas test (test conditions: SO ₂ : 10 ppm, gas temperature: 40 ° C., 75% RH, test time: 144 hours). On the other hand, a sample of silver-plated terminals was subjected to a hydrogen sulfide gas test (test conditions: H ₂ S: 3 ppm, gas temperature: 40 ° C., 75% RH, test time: 16 hours). The measurement of the friction coefficient, while adding a load weight of 30g to each sample, and the distance of 1mm to 50 times back and forth sliding. Further, the contact resistance, while flowing a load weight was added and 1mA current 30g of each sample, and the distance of 1mm to 50 times back and forth sliding.

Further, in order to measure the coefficient of friction and the contact resistance value when the lubricant of the present invention was applied to the solder-plated terminal, 1.5 μm nickel plating was applied to a brass material metal as a lead terminal of the connector, and even samples subjected to solder plating 2.0Myu m were prepared, and samples were immersed for 10 seconds on a metal surface lubricant by each embodiment described above, a sample coated with conventional lubricants described above, and a solder plating An untreated sample that had just been applied was prepared. The solder plating of each sample is formed by dipping for 5 seconds in a rosin flux solder bath having a melting temperature of 240 ° C. and a depth of 2 mm while moving at a speed of 2 mm / sec. In addition, the corrosion test was not performed on the sample of the solder plating.