A silica gel suction cup, its preparation method and a pendant comprising a silica gel suction cup

Abstract

A silica gel sucking disc, a preparing method thereof and a hanging part comprising the silica gel sucking disc are disclosed. The silica gel sucking disc comprises 60-105 parts of methyl vinyl silicone rubber, 20-50 parts of white carbon back, 1-8 parts of hydroxyl silicone oil, 2-10 parts of dimethyl silicone oil, 0.1-0.4 part of a releasing agent and 0.5-1.5 parts of a vulcanizing agent. The method includes steps of 1) weighing the raw materials according to weight parts, 2) mixing and kneading, 3) adding powder, 4) performing cold plastication, 5) cooling, 6) vacuumizing and cooling, 7) performing open mixing, and filtering, 8) performing rubber mixing, 9) performing primary vulcanization and 10) performing secondary vulcanization. The hanging part comprises the silica gel sucking disc, a connecting part and a cap. The silica gel sucking disc has silica gel molecule migration and permeation physical properties, and has natural physical adsorbability for ceramic, glass and the like. The hanging part is adsorbed to a wall in a plane and vacuum manner and is dismountable. The structure of the hanging part can be changed. The hanging part is suitable for use in various occasions.

Description

technical field [0001] The invention relates to the technical field of silica gel, in particular to a silica gel suction cup, a preparation method thereof and a pendant including the silica gel suction cup. Background technique [0002] Household suction cups are used to use the three-dimensional storage space of the home wall. The traditional methods are mainly nails, screws, and glue. With the modern home decoration becoming more refined and artistic, the traditional method of destroying the beauty of the wall is abandoned. The spherical surface Negative pressure suction cups have entered thousands of households, and their materials mainly include plastic products and synthetic rubber products. The working principle of the spherical negative pressure suction cup is to use the inner concave surface to cooperate with the wall surface, and to discharge the air in the inner concave surface by squeezing the spherical surface to form a negative pressure to generate adsorption fo...

AI Technical Summary

Problems solved by technology

According to the survey, consumers need household suction cups to meet the requirement of not falling off for 2 to 3 years. The suction time of spherical negative pressure suction cups or other similar structure suction cups currently on the market is as short as a few hours, and as long as several months, they will be sealed due to negative pressure. If it fails and falls off, it needs to be reinstalled, and it goes round and round, which affects the use effect

The main reasons for the short adsorption time of the current household spherical suction cups are as follows. 1) The suction cups are mostly made of plastic and synthetic rubber. The suction cups are mainly used in bathrooms and kitchens. The environment is relatively harsh, and the bathroom is relatively humid, often with high-temperature water vapor , and the water vapor contains chemical detergents entrained during bathing, and there is corrosive fume in the kitchen, these substances will corrode the sucker and accelerate the aging of the sucker

2) Both plastic and synthetic rubber are polymer materials, and there will be gaps between the molecules for ventilation. The walls of household kitchens and bathrooms are mostly ceramic tiles, and ceramic tiles also have tiny pores. Pore ​​microbreathing of suction cups and tiles is insufficient to rapidly affect changes in negative pressure

However, with the accumulation of time, the amount of negative pressure in the suction cup will gradually weaken, and the influence of the external environment will accelerate the failure of the negative pressure of the suction cup to a certain critical point, and the spherical suction cup has a certain degree of resilience, which may easily lead to complete failure of the suction cup. lose negative pressure and fall off

3) In the preparation process of the suction cup, the hardness of the suction cup is difficult to control, and the temperature changes greatly after the finished product, which also causes the suction cup to become soft at high temperature and harden at low temperature, which will easily cause the suction cup to deform and leak air, lose its negative pressure adsorption force and fall off

4) In order to maintain the invariance of the suction cup and leak air, an ordinary spherical suction cup needs an external component to press the edge of the suction cup at 360 degrees so that the suction cup does not deform and does not leak air. However, this structure is complex and cannot prolong the adsorption time. Solve the problem that the adsorption force is not durable

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