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Polyacrylates interpenetrating network polymer emulsion and high damping material thereof

A technology of polyacrylates and polymer emulsions, which is applied in the field of water-based wide-temperature high-damping damping materials and interpenetrating network polymer emulsions, can solve problems such as difficult control, and achieve the goal of improving mechanical properties, enhancing toughness and elasticity Effect

Inactive Publication Date: 2008-02-20
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither method is easy to control

Method used

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  • Polyacrylates interpenetrating network polymer emulsion and high damping material thereof
  • Polyacrylates interpenetrating network polymer emulsion and high damping material thereof
  • Polyacrylates interpenetrating network polymer emulsion and high damping material thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of methacrylic acid prepolymer: Add 150ml of water and 0.5g of ammonium persulfate initiator to a 250ml three-necked bottle equipped with a stirrer, reflux condenser and water bath heating, raise the temperature to 80°C, add methyl 20.0 g of acrylic acid monomers were reacted for about 1 hour until the system became viscous to obtain a methacrylic acid prepolymer.

Embodiment 2

[0031] The methacrylic acid prepolymer (1.09%) prepared with embodiment 1 is as protective glue, and MS-1 is emulsifier (1.91%), and ammonium persulfate is initiator (0.38%), and sodium bicarbonate is buffering agent (0.26%) %), ethylene glycol dimethacrylate as crosslinking agent (0.3%), butyl acrylate (15.7%), methyl methacrylate (1.01%), methacrylic acid (2.15%), glycidyl acrylate Ester (0.22%) and styrene (8.3%) were used as monomers to prepare polyacrylate interpenetrating network polymer emulsion, and the balance in the system was water.

[0032] The process of preparing polyacrylate interpenetrating network polymer emulsion is that the methacrylic acid prepolymer obtained by an appropriate amount of water and initiator and embodiment 1 is added into a container with agitator, condenser and water bath heating (such as 500 Milliliter three-necked flask), heat up to 75°C, react for 10 minutes, heat up to 85°C, slowly add butyl acrylate, methyl methacrylate, methacrylic aci...

Embodiment 3

[0039] The methacrylic acid prepolymer (1.09%) prepared with embodiment 1 is as protective glue, and MS-1 is emulsifier (1.91%), and ammonium persulfate is initiator (0.38%), and sodium bicarbonate is buffering agent (0.26%) %), ethylene glycol dimethacrylate as crosslinking agent (0.3%), butyl acrylate (15.7%), methyl methacrylate (1.01%), methacrylic acid (2.15%), glycidyl acrylate Ester (0.22%) and styrene (8.3%) are monomers to prepare polyacrylate interpenetrating network polymer emulsion, and the balance in the system is water (the composition of polyacrylate interpenetrating network polymer emulsion is completely consistent with the embodiment 2 same).

[0040] The preparation process is the same as in Example 2.

[0041] The dynamic mechanical spectrum of the emulsion was measured with a twister, and the measurement frequency was 10 Hz; the test temperature range: 25°C-170°C; the heating rate: 2°C / min. The specific spectrum is the same as Figure 1.

[0042] After th...

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Abstract

The invention provides polyacrylic ester interpenetrating network polymer emulsion and highly damped materials, pertaining to the high molecular polymer technological field. The polymer emulsion group consists of protecting adhesive, emulsifier, activator, buffering agent, cross-linking agent, water and monomers, wherein, the monomers comprises butyl acrylate, methacrylic acid, acrylic acid epoxy propyl ester, cinnamene, etc., and polymerize in an interpenetrating network shape. The highly damped materials used for decreasing vibration of vehicles are prepared by the emulsion after addition agent, filing materials and water are added. Since the emulsion of the invention, hollow glass microbeads and talc are used as the important components of the filling materials, the high molecular adhesive and elastic material of the invention has better damped performance, the tenacity and elasticity of the material are enhanced, the intensity of tension, and flexural rigidity resistance and wearing resistance of the material are improved, therefore, the effects of vibration decreasing, noise decreasing, sound and heat insulation can be achieved under various complicated conditions.

Description

technical field [0001] The invention belongs to the technical field of macromolecular polymers, in particular to an interpenetrating network polymer emulsion, which is used to synthesize a water-based wide-temperature-range high-damping damping material for vehicle vibration reduction. Background technique [0002] In terms of damping materials applied to vehicle vibration damping, DuPont Company of the United States made a composition for reducing interior noise and vibration damping, see CN88102579, which is composed of vinyl monomers such as vinyl chloride, acrylic acid, vinylidene chloride, etc., and its filler is Mica, 20-90%, its characteristic is that it can be used continuously at high temperature and below zero. U.S. Rohm and Haas Company and Ford Engine Company jointly applied for a patent, see CN1047679, a novel vehicle damping composition, composed of at least two thermoplastic elastomer polymers (wherein the elastomer is composed of α-olefin nuclei unsaturated m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F4/30C08F2/22C08F2/44C08K7/28C08J5/14C08F212/08C08F220/26
Inventor 王静媛李梦李亚鹏
Owner JILIN UNIV
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