Polystyrene board adhesive and preparation method thereof

Abstract

The invention relates to a polystyrene board adhesive and a preparation method thereof, belonging to the polystyrene board adhesive and the preparation method thereof. The polystyrene board adhesive comprises the following raw materials by the ratio by parts by weight: the weight ratio of an intermediate product, ethylene-vinyl acetate copolymer emulsion 707 and water is 7: 3: 6. The invention has novel and practical formula and method, the innovation point and the prominent characteristics are that the polystyrene board adhesive has very high strength and excellent flexibility and can simultaneously meet the requirements on preparation of a sticking board and rendering polymer mortar, the price thereof is far lower than the series products of ethylene-vinyl acetate or acrylic acid emulsion, all the performances thereof can fully meet the national industrial standards, the economic benefits and the social benefits are very significant, thereby having wide promotional value.

Description

technical field

[0001] The invention belongs to a polystyrene board adhesive and a preparation method thereof. Background technique

[0002] Currently on the market, there are mainly two types of liquid adhesives used in the preparation of EPS, XPS special polymer sticky boards for external wall insulation and plastering mortars: ethylene-vinyl acetate series and acrylic acid series. Although both can meet the current national industry standard requirements, but the price is more expensive. The reasonable price of ethylene-vinyl acetate series products should be about 7,000 yuan / ton, while the reasonable price of acrylic acid series products is about 10,000 yuan / ton. Although there are low-priced liquid polystyrene board adhesives on the market, most of them are only mixed with a small amount of ethylene-vinyl acetate or acrylic emulsion, and the quality made by adding a large amount of mineral powder, thickener and water is not up to the standard. Inferior products requir...

Examples

Embodiment 1

[0036] The weight ratio of intermediate product and ethylene-vinyl acetate copolymer emulsion 707 and water is 7: 3: 6; Wherein intermediate product is made by the raw material and the method of following ratio of parts by weight:

[0037] Polyvinyl alcohol 17-18, 45kg;

[0038] Polyvinyl alcohol 20-99, 25kg;

[0039] Maleic anhydride, 7.5kg;

[0040] Silicone defoamer TP-39 5kg;

[0041] Formaldehyde, 30kg;

[0042] Ammonia, 7.5kg;

[0043] Urea, 13kg;

[0044] Melamine, 25kg;

[0045] Sodium hydroxide, 10kg;

[0046] The preparation method comprises the following steps:

[0047] a. Add 800 parts of water to the reaction kettle first, then add polyvinyl alcohol 17-18, polyvinyl alcohol 20-99, maleic anhydride and defoamer in the above formula, and then heat up to 80°C until the materials are completely Cool down to 78°C after dissolving;

[0048] b. Add the formula amount of formaldehyde and react for 50 minutes, then cool down to 56°C, add the formula amount of ammo...

Embodiment 2

[0055] Comprising the following raw materials in parts by weight:

[0056] The weight ratio of intermediate product and ethylene-vinyl acetate copolymer emulsion 707 and water is 7: 3: 6; Wherein intermediate product is made by the raw material and the method of following ratio of parts by weight:

[0057] Polyvinyl alcohol 17-18, 50kg;

[0058] Polyvinyl alcohol 20-99, 30kg;

[0059] Maleic anhydride, 8kg;

[0060] Defoamer T-608 5.5kg;

[0061] Formaldehyde, 32.4kg;

[0062] Ammonia, 8kg;

[0063] Urea, 13.5kg;

[0064] Melamine, 30kg;

[0065] Sodium hydroxide, 12.5kg;

[0066] The preparation method comprises the following steps:

[0067] a. Add 800 parts of water to the reaction kettle first, then add polyvinyl alcohol 17-18, polyvinyl alcohol 20-99, maleic anhydride and defoamer in the above formula, and then heat up to 80°C until the materials are completely Cool down to 78°C after dissolving;

[0068] b. Add the formula amount of formaldehyde and react for 55...

Embodiment 3

[0075] Comprising the following raw materials in parts by weight:

[0076] The weight ratio of intermediate product and ethylene-vinyl acetate copolymer emulsion 707 and water is 7: 3: 6; Wherein intermediate product is made by the raw material and the method of following ratio of parts by weight:

[0077] Polyvinyl alcohol 17-18, 55kg;

[0078] Polyvinyl alcohol 20-99, 35kg;

[0079] Maleic anhydride, 8.5kg;

[0080] Defoamer MHC70-7620 6kg;

[0081] Formaldehyde, 35kg;

[0082] Ammonia, 8.5kg;

[0083] Urea, 14kg;

[0084] Melamine, 35kg;

[0085] Sodium hydroxide, 15kg;

[0086] Add water and be settled to 1000kg, and preparation method comprises the following steps:

[0087] a. Add 800 parts of water to the reaction kettle first, then add polyvinyl alcohol 17-18, polyvinyl alcohol 20-99, maleic anhydride and defoamer in the formula, and then heat up to 80°C until the materials are completely dissolved Then cool down to 78°C;

[0088] b. Add the formulated amount of...

technical field

[0001] The invention belongs to a polystyrene board adhesive and a preparation method thereof. Background technique

[0002] Currently on the market, there are mainly two types of liquid adhesives used in the preparation of EPS, XPS special polymer sticky boards for external wall insulation and plastering mortars: ethylene-vinyl acetate series and acrylic acid series. Although both can meet the current national industry standard requirements, but the price is more expensive. The reasonable price of ethylene-vinyl acetate series products should be about 7,000 yuan / ton, while the reasonable price of acrylic acid series products is about 10,000 yuan / ton. Although there are low-priced liquid polystyrene board adhesives on the market, most of them are only mixed with a small amount of ethylene-vinyl acetate or acrylic emulsion, and the quality made by adding a large amount of mineral powder, thickener and water is not up to the standard. Inferior products requir...

Examples

Embodiment 1

[0036] The weight ratio of intermediate product and ethylene-vinyl acetate copolymer emulsion 707 and water is 7: 3: 6; Wherein intermediate product is made by the raw material and the method of following ratio of parts by weight:

[0037] Polyvinyl alcohol 17-18, 45kg;

[0038] Polyvinyl alcohol 20-99, 25kg;

[0039] Maleic anhydride, 7.5kg;

[0040] Silicone defoamer TP-39 5kg;

[0041] Formaldehyde, 30kg;

[0042] Ammonia, 7.5kg;

[0043] Urea, 13kg;

[0044] Melamine, 25kg;

[0045] Sodium hydroxide, 10kg;

[0046] The preparation method comprises the following steps:

[0047] a. Add 800 parts of water to the reaction kettle first, then add polyvinyl alcohol 17-18, polyvinyl alcohol 20-99, maleic anhydride and defoamer in the above formula, and then heat up to 80°C until the materials are completely Cool down to 78°C after dissolving;

[0048] b. Add the formula amount of formaldehyde and react for 50 minutes, then cool down to 56°C, add the formula amount of ammo...

Embodiment 2

[0055] Comprising the following raw materials in parts by weight:

[0056] The weight ratio of intermediate product and ethylene-vinyl acetate copolymer emulsion 707 and water is 7: 3: 6; Wherein intermediate product is made by the raw material and the method of following ratio of parts by weight:

[0057] Polyvinyl alcohol 17-18, 50kg;

[0058] Polyvinyl alcohol 20-99, 30kg;

[0059] Maleic anhydride, 8kg;

[0060] Defoamer T-608 5.5kg;

[0061] Formaldehyde, 32.4kg;

[0062] Ammonia, 8kg;

[0063] Urea, 13.5kg;

[0064] Melamine, 30kg;

[0065] Sodium hydroxide, 12.5kg;

[0066] The preparation method comprises the following steps:

[0067] a. Add 800 parts of water to the reaction kettle first, then add polyvinyl alcohol 17-18, polyvinyl alcohol 20-99, maleic anhydride and defoamer in the above formula, and then heat up to 80°C until the materials are completely Cool down to 78°C after dissolving;

[0068] b. Add the formula amount of formaldehyde and react for 55...

Embodiment 3

[0075] Comprising the following raw materials in parts by weight:

[0076] The weight ratio of intermediate product and ethylene-vinyl acetate copolymer emulsion 707 and water is 7: 3: 6; Wherein intermediate product is made by the raw material and the method of following ratio of parts by weight:

[0077] Polyvinyl alcohol 17-18, 55kg;

[0078] Polyvinyl alcohol 20-99, 35kg;

[0079] Maleic anhydride, 8.5kg;

[0080] Defoamer MHC70-7620 6kg;

[0081] Formaldehyde, 35kg;

[0082] Ammonia, 8.5kg;

[0083] Urea, 14kg;

[0084] Melamine, 35kg;

[0085] Sodium hydroxide, 15kg;

[0086] Add water and be settled to 1000kg, and preparation method comprises the following steps:

[0087] a. Add 800 parts of water to the reaction kettle first, then add polyvinyl alcohol 17-18, polyvinyl alcohol 20-99, maleic anhydride and defoamer in the formula, and then heat up to 80°C until the materials are completely dissolved Then cool down to 78°C;

[0088] b. Add the formulated amount of...