A kind of easy-to-clean weather-resistant silica gel and preparation method thereof

A clean and weather-resistant silica gel technology, which is applied in the field of Yijie weather-resistant silica gel and its preparation, can solve the problems of poor weather resistance of silica gel, poor aging resistance, deformation of rubber products, etc., to improve poor weather resistance, good aging resistance, and prevent chemical bond breakage Effect

Active Publication Date: 2022-05-03
JOMOO KITCHEN & BATHROOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, silica gel has poor weather resistance and poor aging resistance. Silicone products will age after being used for a period of time; the aging of silica gel is mainly manifested in the appearance of rubber becoming soft, sticky, and spots; rubber products have deformation, cracking, loss of light and color Change, etc., can not be used in severe cases

Method used

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  • A kind of easy-to-clean weather-resistant silica gel and preparation method thereof
  • A kind of easy-to-clean weather-resistant silica gel and preparation method thereof
  • A kind of easy-to-clean weather-resistant silica gel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method of easy-to-clean weather-resistant silica gel and the preparation of the toilet sticker include the following steps:

[0034] 1) Preparation of modified nano silica

[0035] Nano-silica (particle size 1-50nm) is treated with hydrophobic and oleophobic, organic solvent-friendly and grafted. Wherein hydrophobic treatment, pro-organosolvent treatment and grafting treatment are respectively as follows:

[0036] a. Fluorosilane treatment: soak nano-silica in hydrophobic fluorosiloxane treatment, wherein the hydrophobic fluorosilane can be tridecafluorooctyl triethoxy fluorosilane or perfluorodecyl triethoxy Fluorofluorosilane, etc., in this embodiment, tridecafluorooctyltriethoxyfluorosilane is used, and the storage time is 45min;

[0037] b, siloxane treatment: immerse the nano-silica in the siloxane of the organophilic solvent, wherein the siloxane of the organophilic solvent can be polydimethylsiloxane, heptadecyltriethoxy Base silane and γ-amino...

Embodiment 2-4

[0046] The difference from Example 1 is that the modified nano-silica is modified in a different way. According to the modification method in Table 1, the modification method is adjusted appropriately, and the preparation method in Example 1 is repeated. The performance test results of the prepared silicone toilet sticker are shown in Table 2.

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Abstract

The invention discloses an easy-to-clean and weather-resistant silica gel and a preparation method thereof. According to the mass ratio, the composition includes: silica gel: 80-90%; modified nano-silica: 1-10%; accelerator: 0.5-2%; Release agent: 1‑3%; UV absorber: 1‑2%; dispersion reinforcing agent: 2‑4%; vulcanizing agent: 1‑5%; anti-ultraviolet absorber: 1.8‑5.8%; silane coupling agent: 1.5‑3%. The invention can improve the weather resistance and anti-fouling ability of the silica gel.

Description

technical field [0001] The invention relates to an easy-to-clean and weather-resistant silica gel and a preparation method thereof. Background technique [0002] Silica gel has the advantages of safety, environmental protection, harmless to human body, high adsorption performance, good thermal stability, stable chemical properties, high mechanical strength, etc. It is widely used in precision instruments, leather, clothing, food, medicine and household appliances, etc. industry and used in baby pacifiers and other products that are in direct contact with the human body; it has become a part of people's daily necessities; because silica gel is a highly active adsorption material, there are many pores on the surface that cannot be seen by the naked eye, and the cleaning problem during use has never been solved. solve. In addition, silica gel has poor weather resistance and poor aging resistance. Silicone products will age after being used for a period of time; the aging of si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L77/00C08K13/06C08K9/06C08K3/36
CPCC08L83/04C08K2201/011C08K2201/014C08K2201/005C08L77/00C08K13/06C08K9/06C08K3/36
Inventor 林孝发林孝山刘培培李伟宇周亚欢
Owner JOMOO KITCHEN & BATHROOM
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