JPS60161474A - Production of solidified waste oil - Google Patents

Abstract

PURPOSE:To obtain a solidified waste oil easily from the waste oil of vehicles such as automobile, motor cycle, etc., and to utilize the product as a coating and filling material of electrical wire, coil, etc. and a sealing material, etc., by mixing polyvinyl chloride with waste oil and a plasticizer at specific ratios under heating to obtain a uniform mixture, and cooling and solidifying the mixture. CONSTITUTION:(A) 100pts. (wt.) of polyvinyl chloride is mixed with (B) 10- 1,000pts. of waste oil, (C) a plasticizer (e.g. dioctyl phthalate) and if necessary (D) a flame-retardant plasticizer (e.g. tricresyl phosphate), a stabilizer, a perfume, etc. under heating to obtain a uniform mixture. The objective solidified waste oil can be produced by cooling and solidifying the mixture. EFFECT:The obtained solid has excellent elasticity and shape-following property. USE:Industrial material, traffic material, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing solid waste oil, which aims to effectively utilize waste oil, particularly waste oil for vehicles such as automobiles and motorcycles.

In recent years, the use of automobiles, motorcycles, etc. has increased dramatically, and a large amount of waste oil such as used engine oil and transmission oil is being discharged. However, there are not many ways to reuse these waste oils, and most of them are
The current situation is that the jIi East is being incinerated.

Therefore, as a result of intensive research on methods for reusing waste oil, the present inventor found that polyvinyl chloride (PVC) was used as a plasticizer.
It has been found that by adding waste oil and heating and mixing, a composition with distinctive properties can be obtained.

The present invention has been made based on the above-mentioned knowledge, and its purpose is to solidify waste oil and reuse it for other purposes. It is.

That is, in the present invention, 10 to 1000 parts by weight of waste oil and lO to 100 parts by weight of plasticizer are added to 100 parts by weight of polyvinyl chloride.
It is defined as t-% by completely heating and mixing with 0 parts by weight, integrating, cooling and solidifying.

The present invention 8A' will be explained in detail below.

First, 10 to 1000 parts by weight of waste oil and 10 to 1000 parts of plasticizer are added to 100 parts by weight of polyvinyl chloride (PVC).
Parts by weight are heated and mixed.

The additive added to PVC lowers the modulus of the obtained solid waste oil, softens the material, and makes it uniform in jelly. As this plasticizer.

Machining agents conventionally used in PVC molding can be used, such as dioctyl lactate (DOP), dintyl phthalate (DBP), 4% 7-talic acid ester plasticizer (DIDP), etc. agent,
Use F[ester plasticizers, methacrylate ester plasticizers, etc. such as trioctyl phosphate (TOP). Furthermore, by adding flame retardant materials such as tricresyl phosphate (TCP) to this product, it is possible to make the product flame retardant.

The waste oil added to PVC has the property of further lowering the modulus of the resulting waste oil solid and softening the material to make it more uniform. As this waste oil, one that is compatible with the plasticizer can be used, such as 2/gin oil, transmission oil, etc.

The reason for limiting the addition ratio of plasticizer to the above range is as follows:
This is because if the amount is less than 10 parts by weight, the waste oil solids will not become jelly-like, and if it exceeds 1,000 parts by weight, the cost will be high and bleeding will occur easily. The reason for limiting the addition ratio of waste oil to the above range is that if the amount is less than 1O, the amount added is too small and it is difficult to use it effectively.
This is also because if the weight exceeds 1000, bleed tends to occur. In this case, the waste oil addition lid is the plasticizer addition lid.
It is preferable not to exceed t.

In the present invention, in addition to the above-mentioned additives, various additives such as a stabilizer such as zinc stearate, a coloring agent, or a filler may be mixed. If there is an odor from the oil, you may add fragrance or the like.

When heating and mixing the mixture of PVC, plasticizer, waste oil, etc., the heating temperature is set to 150 to 220, which is the temperature at which the PVC melts.
Perform at ℃. Thereafter, this is put into a T-type or the like and cooled and solidified to obtain solid waste oil.

The jelly-like oil composition thus obtained has a jelly-like elasticity and feel similar to agar jelly. This suggests that during the process of manufacturing the waste oil solid T-film, PVC molecules took in the plasticizer and waste oil to form a glue, thereby forming a PVC jelly. However, this jelly-like PVC composition does not cause syneresis like agar jelly and is extremely stable.

It also has considerable elongation properties and tensile strength, and does not tear easily like agar gel. It has the characteristics of being highly deformable and having excellent shape-following properties.

Moreover, there is no decrease in physical properties or increase in hardness at low temperatures, and b-a
Even when used for a long time at 0°C to -40°C, it shows the same behavior as at room temperature.

In particular, since it contains waste oil that was previously incinerated,
Manufacturing costs can be extremely reduced. Furthermore, by adjusting the amount of waste oil added, the hardness of the waste oil solids can be varied over a wide range.

Moreover, the waste oil solids obtained by the present invention are as follows.

Excellent elasticity and shape-following properties. Therefore, by utilizing this property, it can be effectively used for covering fillers for electric wires, coils, etc., sealing materials, industrial materials, road materials, etc.

Examples of the present invention will be described below.

A waste oil solid according to the present invention was obtained under the production conditions shown in Table m1 below.

However, DOP was used as a household agent and waste engine oil was used as waste oil.

Next, the hardness of the solid waste oil thus obtained was examined by a penetration test, and the results are shown in the t-$2 table.

As explained above, according to the present invention, waste oil that was conventionally discarded or incinerated can be effectively used as KPIr, and the manufacturing method thereof is extremely simple, and the waste oil solids obtained have distinctive properties and can be used in various ways. It has remarkable effects, such as being able to be used for many purposes.

Claims (1)

[Claims] Waste oil lO~z for polyvinyl chloride 100 heavy lid part
o00! 1. A method for producing solid waste oil, which comprises heating and mixing 10 to 1000 parts of a town detergent, integrating them, and then cooling and solidifying them.