Solvent type chloroprene rubber adhesive with excellent weather ability and preparation method thereof

Abstract

The invention provides an adhesive, particularly relates to a chloroprene rubber adhesive and belongs to the technical field of adhesives. The solvent type chloroprene rubber adhesive comprises the following constituents in parts by weight: 30-50 parts of chloroprene rubber, 10-15 parts of natural rubber, 10-15 parts of vinyl acetate, 10-20 parts of methyl methacrylate, 5-10 parts of hydroxyethyl methylacrylate, 4-8 parts of epoxy resin, 10-20 parts of terpene resin, 5-10 parts of coumarone resin, 2-4 parts of hydroquinone, 5-10 parts of magnesium oxide, 30-10 parts of solvent and 3-5 parts of anti-aging agent. The solvent type chloroprene rubber adhesive provided by the invention has better heat resistance and cold tolerance, the adhesive strength of the chloroprene rubber adhesive provided by the invention can be more than 130N / cm, after being placed for 7 days at minus 30 DEG C, the adhesive strength also can be 110N / cm, and after being placed for 7 days at 100 DEG C, the adhesive strength is more than 75N / cm.

Description

technical field

[0001] The invention provides an adhesive, in particular relates to a neoprene adhesive and belongs to the technical field of adhesives. Background technique

[0002] Neoprene is the main raw material of neoprene adhesive. Its molecular structure is regular, and there are polar chlorine atoms in the molecular chain, so it has high visibility, which makes neoprene also have high internal resistance at room temperature. Good poly strength, flame resistance and aging resistance. The prepared adhesive can be cold-cured at room temperature, has great initial adhesion, rapid strength build-up, and high bonding strength. It can be used for bonding rubber, leather, fabric, artificial leather, plastic, wood, paper, glass, ceramics etc.

[0003] Neoprene adhesives are available in solvent type, emulsion type and solvent-free liquid type, and solvent type is further divided into mixed type and grafted type. At present, solvent-based chloroprene rubber adhesives are t...

Examples

Embodiment Construction

[0018] Prepare the raw materials of each embodiment according to the weight shown in Table 1.

[0019] The weight proportion of table 1 embodiment 1~embodiment 3

[0020]

[0021] In the above embodiments, the solvent is toluene, the anti-aging agent is anti-aging agent RD, the magnesium oxide is light magnesium oxide, and the particle size is preferably controlled at 20-200 microns.

[0022] The preparation method is:

[0023] S1: Mix epoxy resin, terpene resin, and coumarone resin with magnesium oxide for 1 hour at 35°C;

[0024] S2: Mix the mixture obtained in step S1, neoprene rubber, natural rubber, vinyl acetate, methyl methacrylate, and hydroxyethyl methacrylate at 130°C for 0.5 hours;

[0025] S3: Mix the mixture obtained in step S2 with hydroquinone, solvent, and anti-aging agent at 35° C. for 1 hour, and let it cool.

technical field

[0001] The invention provides an adhesive, in particular relates to a neoprene adhesive and belongs to the technical field of adhesives. Background technique

[0002] Neoprene is the main raw material of neoprene adhesive. Its molecular structure is regular, and there are polar chlorine atoms in the molecular chain, so it has high visibility, which makes neoprene also have high internal resistance at room temperature. Good poly strength, flame resistance and aging resistance. The prepared adhesive can be cold-cured at room temperature, has great initial adhesion, rapid strength build-up, and high bonding strength. It can be used for bonding rubber, leather, fabric, artificial leather, plastic, wood, paper, glass, ceramics etc.

[0003] Neoprene adhesives are available in solvent type, emulsion type and solvent-free liquid type, and solvent type is further divided into mixed type and grafted type. At present, solvent-based chloroprene rubber adhesives are t...

Examples

Embodiment Construction

[0018] Prepare the raw materials of each embodiment according to the weight shown in Table 1.

[0019] The weight proportion of table 1 embodiment 1~embodiment 3

[0020]

[0021] In the above embodiments, the solvent is toluene, the anti-aging agent is anti-aging agent RD, the magnesium oxide is light magnesium oxide, and the particle size is preferably controlled at 20-200 microns.

[0022] The preparation method is:

[0023] S1: Mix epoxy resin, terpene resin, and coumarone resin with magnesium oxide for 1 hour at 35°C;

[0024] S2: Mix the mixture obtained in step S1, neoprene rubber, natural rubber, vinyl acetate, methyl methacrylate, and hydroxyethyl methacrylate at 130°C for 0.5 hours;

[0025] S3: Mix the mixture obtained in step S2 with hydroquinone, solvent, and anti-aging agent at 35° C. for 1 hour, and let it cool.

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