KR20100021185A - Silicon rubber compound having no adhesiveness to glass material - Google Patents

Abstract

PURPOSE: A silicon rubber compound is provided to be suitable in the manufacture of various materials which is need to be contacted with and separated from glass materials because of no adhesiveness to glass materials. The silicon rubber compound does not adhere to glass materials. CONSTITUTION: A silicon rubber compound includes an inorganic filler as a component. The inorganic filler is made of a quartz powder. The silicone rubber composition comprises polydimethyl siloxane 30-60 weight%, silicon dioxide 25-50 weight%, quartz powder 10-30 weight% as an inorganic filler, and polydimethylsiloxane oil 1-10 weight%. The silicon rubber is a polymer in which a chemical bond such as organosilicone, containing an organic group and oxygen, is interconnected.

Description

Silicone rubber compound having no adhesiveness to glass material}

The present invention relates to a silicone rubber composition, and more particularly, to a silicone rubber composition having no adhesion to glass despite the mutual similarity on the constituent elements.

When storing small amounts of food in the kitchen, it is common to put them in a box made of synthetic resin and put them in a refrigerator.

Although it is well known, the structure of the box is briefly described, and the container containing the object to be stored, such as food, the lid covered by the upper opening of the cylinder, and the mutually engaging portion between these cylinders and the cover, It is a structure including the packing to hold.

In the case of the packing, a silicone rubber material which does not easily appear outward in relation to keeping the state fitted inside the edge groove of the lid at all times and has good weather resistance and aesthetics and is harmless to the human body is mainly used.

However, in recent years, as awareness of various harmful substances such as environmental hormones is increasing, there is a tendency to prefer glass boxes instead of synthetic resin boxes.

This change in the perception of food storage boxes, ie, the preference for glass boxes, has led to unexpected problems with the packing.

Specifically, unlike the case of a synthetic resin box, it is not inconvenient, such as it is difficult to open the lid as the box body and the lid of the glass material is stuck to the packing and almost integrated.

The present invention has been made to solve such a conventional problem, and an object thereof is to provide a silicone rubber composition having no adhesion to glass.

The object of the present invention as described above is achieved by including an appropriate amount of inorganic filler as a component in the silicone rubber composition.

In other words, although the silicone rubber composition of the present invention is composed of silicon (Si), which is a common element with glass, there is no adhesion to glass due to the inclusion of the inorganic filler.

Since the silicone rubber composition according to the present invention has no adhesion to glass, it is most suitable for manufacturing various articles having relatively frequent contact and separation with glass materials.

EMBODIMENT OF THE INVENTION Hereinafter, the silicone rubber composition without adhesiveness to the glass of the Example of this invention is demonstrated in detail based on a component ratio table.

As shown in Table 1 below, silicone rubber widely used as a household material such as a packing for a conventional food storage box is 40 to 65 wt% of polydimethyl siloxane and 25 to 50 wt% of silicon dioxide. Weight%, polydimethyl siloxane oil (Polydimethyl siloxane oil) is composed of 1 to 10% by weight.

Table 1 Conventional Silicone Rubber Component Ratios

 ingredient  Content (% by weight)  Polydimethylsiloxane  40-65  Silicon dioxide  25-50  Polydimethylsiloxane oil  1-10

In order to improve moldability or weather resistance, a special component of about 1 to 5% by weight may be added. In this case, the content of the component to which the silicon dioxide or polydimethyl siloxane oil is added may be added. It is common to reduce as much.

Here, looking at the root cause of the conventional silicone rubber is easily attached to the glass material as follows.

Silicone rubber is a polymer in which silicon (organosilicone) containing organic groups and chemical bonds such as oxygen) are interconnected, and the main component of glass is silicon oxide (SiO ₂ ).

In general, the principle of similarity is followed when discussing affinity between materials.

Materials of the same or similar components are mutually compatible and thus adhere well to each other, while materials of dissimilar components tend to reject each other.

The sticking, ie sticking, of the conventional silicone rubber to the glass material is mainly due to their common element of silicon (Si) and similar chemical bonding structure of SiO ₂ .

On the other hand, the silicone rubber of the embodiment of the present invention is characterized by essentially eliminating the occurrence of mutual adhesion caused by similar components by adding an inorganic filler to the organic group-containing silicone.

As shown in the following [Table 2], the silicone rubber of the embodiment of the present invention is 30 to 60% by weight of polydimethylsiloxane, 25 to 50% by weight of silicon dioxide, 10 to 30% by weight of quartz powder as the inorganic filler, polydimethylsiloxane oil It is comprised from 1 to 10 weight%.

Table 2 silicone rubber component ratio table of the present invention

 ingredient  Content (% by weight)  Polydimethylsiloxane  30-60  Silicon dioxide  25-50  Quartz powder  10-30  Polydimethylsiloxane oil  1-10

Applicants have focused on the conflicting effects between organic and inorganic compounds and have experimented with several kinds of inorganic fillers and have concluded that the quartz powder is the most desirable for producing silicone rubbers consistent with the object of the present invention.

However, considering that all kinds of inorganic fillers are not tested and further various kinds of inorganic fillers may be developed in the future, the inorganic fillers of the present invention are not limited to the quartz powder.

As in the conventional case, instead of reducing the content of the silicon dioxide or polydimethylsiloxane oil or the like, it is possible to add 1 to 5% by weight of a special component.

On the other hand, the silicone rubber composition of the present invention is not different from the conventional manufacturing method consisting of a polymerization step, compounding step, cold mixing step, straining step (straining step) As a result, description of the manufacturing method is omitted.

Although the silicone rubber composition of the present invention has been described in detail based on the examples, those skilled in the art will be able to change various components and contents within the scope without departing from the basic spirit of the present invention.

However, since the present invention only focuses on the conflicting effect between the organic compound and the inorganic compound, it would be reasonable for the silicone rubber composition to be included in the technical scope of the present invention as long as it includes the inorganic filler as a component. will be.

Claims (3)

Silicone rubber composition comprising an inorganic filler as a component. The method of claim 1, The inorganic filler is a silicone rubber composition, characterized in that the quartz powder. The method of claim 1, The component ratio of the silicone rubber composition is 30 to 60% by weight of polydimethylsiloxane, 25 to 50% by weight of silicon dioxide, 10 to 30% by weight of quartz powder as an inorganic filler, and 1 to 10% by weight of polydimethylsiloxane oil. Rubber composition.