Adhesive of self-adhesive layer adopting multielement monomer copolymerization and preparation method thereof

A technology of multiple monomers and adhesives, applied in the direction of ester copolymer adhesives, adhesives, adhesive types, etc., can solve the problem of detachment of the adhesive force between the coil and the substrate, decreased adhesive performance, and low adhesive strength, etc. problems, to achieve the effect of improving product quality and service life, improving bonding strength, and convenient and flexible operation

Inactive Publication Date: 2010-12-22

北京立高科技股份有限公司 +1

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AI-Extracted Technical Summary

Problems solved by technology

[0006] a. Temperature changes throughout the year bring great difficulty to production and storage time, and it is impossible to have a good product quantity reserve. It is necessary for the enterprise to formulate annual production plans and adjust the reasonable allocation and orderly arrangement of products of various specifications. Development is subject to certain constraints;

[0007] b. When some reasons are encountered in the process of sales and construction application, when the products produced by the formula in a certain period of time cannot be normally constructed according to the period of time, losses will be caused due to the difficulty of construction and application due to the decrease of bonding performance;

[0008] c. When used on the roof of a building or other exposed parts, due to the sun exposure and the change of temperature difference between day and night and four seasons, the softened oil will be quickly overflowed, making the asphalt or modified asphalt layer harden and crack, and the adhesion between the coil and the base Drop and disengage, causing leakage, affecting the waterproof quality and service life of the building

[0009] d. In application construction, when the temperature rises, the viscosity of asphalt or modified asphalt increases, which makes it difficult to remove the anti-adhesive film or anti-adhesive paper compounded on the asphalt or modified asphalt layer. When the temperature drops, the asphalt Or the viscosity of modified asphalt decreases rapidly, making it difficult to bond with the substrate; thus affecting the quality of construction and the ...

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Abstract

The invention relates to an adhesive of a self-adhesive layer adopting multielement monomer copolymerization and a preparation method thereof. The adhesive is prepared from raw materials containing components A, B, C and D through temperature-control and time-control synthesis, wherein the component A contains 80.0-150.0 parts by weight of deionized water; the component B contains 5.0-30.0 parts by weight of deionized water, 0.2-2.5 parts by weight of sulfate and 0.1-2.0 parts by weight of polymerizer; the component C contains 70.0-180.0 parts by weight of deionized water, 0.2-5.0 parts by weight of sulfate and 1.0-4.5 parts by weight of polymerizer; and the component D contains 50.0-260.0 parts by weight of acrylic ester, 3.0-10.0 parts by weight of methacrylic acid, 0.2-15.0 parts by weight of tackifying resin, 8.0-120.0 parts by weight of acetic ester, 3.0-10.0 parts by weight of methyl methacrylate and 2.0-5.0 parts by weight of organosilicon. The adhesive has waterborne environmental protection, no toxin or taste, high peel strength and good weather fastness; and the adhesive layer has viscosity of being not influenced by temperature change and can be stored for a long time. The production process has the advantages of short flow and convenient and flexible operation and does not have special demands on equipment; no three wastes are discharged in the production process; and factory construction invest capitals are few, and the product benefit is high.

Application Domain

Ester polymer adhesivesRosin adhesives

Technology Topic

IonChemistry +12

Image

Examples

Experimental program(8)

Example Embodiment

[0063] Example 1

[0064] Referring to Fig. 1, according to the production process shown in Fig. 1, the adhesive in the self-adhesive layer tape used on the waterproof membrane of the present invention is prepared, and the specific steps are as follows:

[0065] 1) First, weigh the material according to the adhesive formula:

[0066] Component A is: measure 110.0 parts by weight of deionized water;

[0067] The component B is: measure 15.0 parts by weight of deionization, 1.0 parts by weight of sodium persulfate, and 0.2 parts by weight of polymerization agent to mix;

[0068] The component C is: measure 120.0 parts by weight of deionized water, 0.5 parts by weight of potassium persulfate, 3.8 parts by weight of polymerization agent and 1.5 parts by weight of anhydrous sodium sulfate and mix;

[0069] The component D is: weigh 200.0 parts by weight of butyl acrylate, 5.0 parts by weight of methacrylic acid, 0.9 parts by weight of gum rosin, 18.0 parts by weight of vinyl acetate, 5.0 parts by weight of methyl methacrylate, and 2.0 parts by weight of silicone and mix, First dissolve 0.9 parts by weight of gum rosin in component D, then mix with component C, and perform pre-emulsification at a speed of 300r/min for 60 minutes to obtain a milky white uniform pre-emulsion;

[0070] 2). Adhesive synthesis:

[0071] In a four-necked flask equipped with a stirrer, a thermometer, a dropper bottle and a self-controlled temperature water bath, add the weighed component A in step 1), start to heat up, and pour into step 1 when it reaches 75-80°C ) Component B, continue to heat, when the temperature rises to 80~85℃, add 15% of the total amount of the pre-emulsion of component C and component D prepared in step 1), and then continue to heat up. When the temperature rises to 80~85℃, add the remaining pre-emulsions of component C and component D which have been prepared in step 1) dropwise. All the components are dripped in 150 minutes at a temperature of 75~90℃, and then Keep heat preservation for 150 minutes; then, lower the temperature to below 40°C, neutralize the PH value to 6-8 with ammonia water, and filter the material with a 100-mesh screen to obtain a milky white water-based adhesive.

Example Embodiment

[0072] Example 2

[0073] 1) Adhesive formula

[0074] The component A is: 105.0 parts by weight of deionized water;

[0075] The B components are: 20.0 parts by weight of deionization, 1.0 parts by weight of sodium persulfate, and 0.5 parts by weight of polymerization agent;

[0076] The C component is: 123.5 parts by weight of deionized water, 0.5 parts by weight of ammonium persulfate, 3.0 parts by weight of polymerization agent and 1.5 parts by weight of anhydrous sodium sulfate;

[0077] The component D is: 230.0 parts by weight of butyl acrylate, 5.0 parts by weight of methacrylic acid, 1.3 parts by weight of gum rosin and 10.0 parts by weight of vinyl acetate. Firstly, 1.3 parts by weight of gum rosin is dissolved in component D, and then combined with Mix the good C component and perform pre-emulsification at 500r/min for 30 minutes to obtain a milky white uniform pre-emulsified liquid;

[0078] Adhesive synthesis:

[0079] In a four-necked flask equipped with a stirrer, a thermometer, a dropping bottle and a temperature-controlled water bath, add the weighed component A in step 1), start to heat up, and pour into step 1 when it reaches 75-80°C ), continue to heat up, when the temperature rises to 80~85℃, add 30% of the total amount of the pre-emulsion of component C and component D prepared in step 1), and then continue to heat up. When the temperature rises to 80~85℃, add the remaining pre-emulsions of component C and component D that have been prepared in step 1) dropwise. All the components are dripped at 75~90℃ in 120 minutes, and then Keep heat preservation for 100 minutes; then, lower the temperature to below 40°C, neutralize the PH value with ammonia water to 6-8, and filter the material with a 100-mesh screen to obtain a milky white water-based adhesive.

Example Embodiment

[0080] Example 3

[0081] 1) Adhesive formula

[0082] The component A is: 115.0 parts by weight of deionized water;

[0083] The B component is: 21.0 parts by weight of deionization, 1.0 parts by weight of sodium persulfate, and 0.3 parts by weight of polymerization agent;

[0084] Component C is: 110.0 parts by weight of deionized water, 0.5 parts by weight of ammonium persulfate, 3.5 parts by weight of polymerization agent, and 1.0 part by weight of anhydrous sodium sulfate;

[0085] The component D is: 207.0 parts by weight of butyl acrylate, 5.0 parts by weight of methacrylic acid, 5.0 parts by weight of vinyl acetate, 5.0 parts by weight of terpene resin, and 3.0 parts by weight of methyl methacrylate, and 5.0 parts by weight of terpene resin Dissolve in component D, then mix with component C, and perform pre-emulsification at a speed of 350r/min for 50 minutes to obtain a milky white uniform pre-emulsion;

[0086] 2). Adhesive synthesis:

[0087] In a four-necked flask equipped with a stirrer, a thermometer, a dropping bottle and a temperature-controlled water bath, add the weighed component A in step 1), start to heat up, and pour into step 1 when it reaches 75-80°C ) B component, continue to heat, when the temperature rises to 80 ~ 85 ℃, start to drop the pre-emulsion of C component and D component prepared by step 1), all components are at 75 ~ 85 ℃ At the temperature, take 180 minutes to finish dripping, and then continue to keep the temperature for 150 minutes; then, cool to below 40°C, neutralize the pH value with ammonia water to 6-8, and then filter the material with a 100 mesh screen to obtain a milky white water-based adhesive.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

Stable quality
High bond strength

Adhesive of self-adhesive layer adopting multielement monomer copolymerization and preparation method thereof

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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