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A kind of silica gel sucker and preparation method thereof

A technology of silica gel and suction cup, which is applied in the field of silica gel, can solve the problems of shedding, large surface area of ​​negative pressure on the spherical surface, easy leakage of air and negative pressure, etc., and achieve the effect of not being easy to deform

Active Publication Date: 2019-01-11
ZHONGSHAN XIONGBING RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a silica gel suction cup, which uses a plane negative pressure instead of a spherical negative pressure, which solves the problem that the spherical negative pressure has a large surface area, and it is easy to leak air and cause the negative pressure to fail and fall off.

Method used

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  • A kind of silica gel sucker and preparation method thereof
  • A kind of silica gel sucker and preparation method thereof
  • A kind of silica gel sucker and preparation method thereof

Examples

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preparation example Construction

[0037] A preparation method of a silica gel suction cup, comprising the following steps:

[0038] 1) Take the following raw materials by weight:

[0039]

[0040] Wherein, the methyl vinyl silicone rubber is divided into two parts, methyl vinyl silicone rubber a and methyl vinyl silicone rubber b, the weight ratio of methyl vinyl silicone rubber a and methyl vinyl silicone rubber b It is 3:1; the white carbon black is divided into two parts, white carbon black a and white carbon black b, and the weight ratio of white carbon black a and white carbon black b is 2:3;

[0041] The content of zinc in the zinc stearate is 10-15%;

[0042] Preferably, the molecular weight of the methyl vinyl silicone rubber is 550,000-700,000, the molar percentage of the vinyl content is 0.07-0.15%, and the volatile matter of the methyl vinyl silicone rubber is 0.4-1.0%;

[0043] Using the above ratio of raw materials, the hardness of the finished silicone suction cup is stable, which is 28~31A....

Embodiment 1

[0062] A preparation method of a silica gel suction cup, comprising the following steps:

[0063] 1) Take the following raw materials by weight:

[0064]

[0065] 2) Kneading and kneading: mixing the methyl vinyl silicone rubber a and zinc stearate in step 1) into a kneader, and performing kneading and kneading with the lid closed at a temperature of 45°C;

[0066] 3) Adding powder: After completing step 2), under the condition of 60°C, fill the kneader with nitrogen gas and divide the silica a into four parts and add them to the kneader respectively. Add silica a for the first time Add hydroxy silicone oil at the same time, and add dimethyl silicone oil at the same time when adding silica a for the fourth time;

[0067] The first part of white carbon black a accounts for 40% of the mass fraction of white carbon black a, the second part of white carbon black a accounts for 30% of the mass fraction of white carbon black a, and the third part of white carbon black a accounts...

Embodiment 2

[0076] A preparation method of a silica gel suction cup, comprising the following steps:

[0077] 1) Take the following raw materials by weight:

[0078]

[0079] 2) Kneading and kneading: mix the methyl vinyl silicone rubber a and zinc stearate in step 1) into a kneader, and perform closed-cover kneading and kneading at a temperature of 40° C.;

[0080] 3) Powder addition: after step 2), at a temperature of 60°C, fill the kneader with nitrogen gas and divide the silica a into four parts and add it to the kneader. When adding silica a for the first time Add hydroxyl silicone oil at the same time, and add dimethyl silicone oil when adding silica a for the fourth time;

[0081] The first part of white carbon black a accounts for 45% of the mass fraction of white carbon black a, the second part of white carbon black a accounts for 30% of the mass fraction of white carbon black a, and the third part of white carbon black a accounts for white carbon black a The mass fraction o...

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Abstract

The invention discloses a silicone sucker and a preparation method thereof. The silicone sucker comprises components of raw materials in parts by weight as follows: 95-105 parts of methyl vinyl silicone rubber, 20-30 parts of white carbon black, 1-6 parts of hydroxyl silicone oil, 2-10 parts of dimethyl silicone oil, 0.1-0.4 parts of a release agent and 0.5-1.5 parts of a vulcanizing agent. The preparation method comprises steps as follows: 1) weighing of raw materials in parts by weight; 2) kneading and mixing; 3), powder adding; 4) cold mixing; 5) cooling; 6) vacuum pumping and cooling; 7) open mill filtration; 8) silicone milling; 9) primary vulcanization; 10) secondary vulcanization. The silicone sucker comprises a base plate and a connecting part, wherein the base plate is a planar sucker; the connecting part extends outwards from the surface of the base plate. The silicone sucker adopts plane negative pressure instead of spherical negative pressure, and the problems of large surface area under the plane negative pressure and falling of the silicone sucker due to negative pressure failure caused by air leakage are solved.

Description

technical field [0001] The invention relates to the technical field of silica gel, in particular to a silica gel sucker and a preparation method thereof. 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 force and realize the function of the non-marking sucti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/04C08L83/06C08K13/02C08K3/36C08K5/098C08K5/14A47G29/087B29C35/02
CPCA47G29/087B29C35/02C08K2201/014C08L83/04C08L2205/02C08L2205/025C08L2205/035C08L83/06C08K13/02C08K3/36C08K5/098C08K5/14
Inventor 金自成张健刘神智刘雨
Owner ZHONGSHAN XIONGBING RUBBER
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