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One-component silicone rubber for acrylic bonding and preparation method thereof

A silicone rubber, one-component technology, applied in the direction of adhesives, etc., can solve the problems of glue failure and low surface energy of acrylic, and achieve good weather resistance, environmental aging performance, and good adhesion

Active Publication Date: 2018-05-08
GUANGZHOU HUINA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the low surface energy of acrylic, general glue cannot bond it. At present, shadowless glue and chloroform are used to bond it. There is no silicone product that can bond acrylic materials. effect

Method used

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  • One-component silicone rubber for acrylic bonding and preparation method thereof
  • One-component silicone rubber for acrylic bonding and preparation method thereof
  • One-component silicone rubber for acrylic bonding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. In this embodiment, a single-component silicone rubber used for acrylic bonding is composed of raw materials in parts by weight:

[0023]

[0024] in:

[0025] Calcium carbonate is composed of heavy calcium carbonate by weight: light calcium carbonate=1: 1, and the average particle diameter is 1 μ m;

[0026] The cross-linking agent is methyl tributylketoxime silane in weight ratio: vinyl tributylketoxime base silane=7:1;

[0027] The coupling agent is highly active siloxane by weight: γ-aminopropyltriethoxysilane=1:4; wherein, the highly active siloxane is amino POSS by weight: isocyanatopropyltrimethoxysilane =2:1.

[0028] 2. The preparation method of the one-component silicone rubber used for acrylic bonding in this embodiment is as follows:

[0029] Stir and mix α, ω-dihydroxypolydimethylsiloxane, calcium carbonate, and fumed silica for 15 minutes, then continue to stir and mix for 30 minutes under the conditions of vacuum degree -0.08Mpa and stirring spee...

Embodiment 2

[0031] 1. In this embodiment, a single-component silicone rubber used for acrylic bonding is composed of raw materials in parts by weight:

[0032]

[0033]

[0034] in:

[0035] Calcium carbonate is composed of heavy calcium carbonate by weight: light calcium carbonate=2: 1, and the average particle diameter is 4 μ m;

[0036] The cross-linking agent is methyl tributylketoxime silane in weight ratio: vinyl tributylketoxime base silane=7:1;

[0037] The coupling agent is highly active siloxane by weight: γ-aminopropyl triethoxysilane=1:6; wherein, the highly active siloxane is amino POSS by weight: isocyanatopropyl trimethoxysilane = 3:1.

[0038] 2. The preparation method of the one-component silicone rubber used for acrylic bonding in this embodiment is as follows:

[0039] Stir and mix α,ω-dihydroxypolydimethylsiloxane, calcium carbonate, and fumed silica for 10 minutes, then continue to stir and mix for 40 minutes under the conditions of vacuum degree -0.09Mpa and...

Embodiment 3

[0041] 1. In this embodiment, a single-component silicone rubber used for acrylic bonding is composed of raw materials in parts by weight:

[0042]

[0043] in:

[0044] Calcium carbonate is composed of heavy calcium carbonate by weight: light calcium carbonate=2: 1, and the average particle diameter is 4 μ m;

[0045] The cross-linking agent is methyl tributylketoxime silane in weight ratio: vinyl tributylketoxime base silane=7:1;

[0046] The coupling agent is highly active siloxane by weight: γ-aminopropyl triethoxysilane=1:8; wherein, the highly active siloxane is amino POSS by weight: isocyanatopropyl trimethoxysilane =4:1.

[0047] 2. The preparation method of the one-component silicone rubber used for acrylic bonding in this embodiment is as follows:

[0048] Stir and mix α, ω-dihydroxypolydimethylsiloxane, calcium carbonate, and fumed silica for 20 minutes, then continue to stir and mix for 20 minutes at a vacuum degree of -0.08Mpa and a stirring speed of 40 Hz; ...

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Abstract

The invention discloses a one-component silicone rubber for acrylic bonding. The one-component silicone rubber is composed of alpha, omega-dihydroxy polydimethylsiloxane base materials, calcium carbonate, gas phase silica, a cross-linking agent, a coupling agent and a catalyst. In addition, the invention also discloses a method for preparing the one-component silicone rubber for acrylic bonding. Organic silica gel products with good adhesiveness for acrylic materials with low surface energy are obtained by means of formula design and synthetic compound use of the coupling agent, and weather resistance and environmental aging resistance are excellent, so that more extensive application advantages are brought to the acrylic materials.

Description

technical field [0001] The invention relates to the technical field of polymer sealing materials, in particular to a one-component silicone rubber used for acrylic bonding and a preparation method thereof. Background technique [0002] Polymethyl methacrylate PMMA (acrylic) is a non-toxic and environmentally friendly material with excellent chemical stability, weather resistance, light transmission, electrical insulation, post-processing, etc., and is easy to dye and process, so it is widely used , Known as the "Queen of Plastics". Green and environment-friendly acrylic materials were widely used in the outdoor colorful building materials of the Beijing Olympic Games project. In recent years, the pace of urban construction has been accelerated across the country, and a large number of street signs, advertising light boxes and telephone booths have appeared, and a considerable part of the materials used is acrylic. [0003] However, due to the low surface energy of acrylic,...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/08C08K13/02C08K3/26C08K3/36C08K5/5465C09J183/04
CPCC08K2003/265C08K2201/003C08K2201/014C08L83/04C08L2205/02C09J183/04C08L83/08C08K13/02C08K3/26C08K3/36C08K5/5465
Inventor 李大卿廖帮伟林鸿李嘉琪黄坚黄小平麦尉球张小琴
Owner GUANGZHOU HUINA NEW MATERIAL TECH
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