Adhesive cement and preparation method thereof

Abstract

The invention belongs to the field of tire production, and particularly relates to adhesive cement and a preparation method thereof, and the adhesive cement comprises the following components in parts by weight: 18-20 parts of adhesive cement, 280-300 parts of 120 # gasoline, and 1.9-2 parts of tert-butyl phenolic resin. The rubber cement glue is prepared from the following components in parts by weight: 30 to 40 parts of master batch rubber cement glue, 0.1 to 0.2 part of an accelerant NOBS (N, N-Butyl Styrene) and 0.48 to 0.6 part of sulfur. According to the present invention, with the tire blank bonding adhesive cement, the adhesion between the parts is increased so as to improve the bubble and delamination phenomena of the finished tire;

Description

Technical Field

[0001] The invention belongs to the field of tire production, and in particular relates to an adhesive slurry and a preparation method thereof. Background Art

[0002] The semi-finished parts of tire extrusion, including cushion rubber, mold rubber, film, etc., the surface viscosity of each semi-finished part is one of the important process and technical parameters for molding quality control. The viscosity affects the adhesion of materials during the molding process, causing bubbles and delamination in the finished tire. Certain measures need to be taken to improve the adhesion of the rubber in the production of molded products.

[0003] The adhesion between existing molded parts is not high enough, which causes problems such as bubbles and delamination in the finished tire. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an adhesive slurry and a preparation method thereof, so as to solve the problem that the adhesion between the molded parts is not high enough, resulting in bubbles and delamination in the finished tire.

[0005] The present invention is achieved in this way. An adhesive paste, calculated by weight, comprising: Glue: 18-20 parts, 120# gasoline: 280-300 parts, tert-butyl phenolic resin: 1.9-2 parts.

[0006] Furthermore, the mortar glue, calculated by weight, includes: masterbatch mortar glue: 30-40 parts, accelerator NOBS: 0.1-0.2 parts, sulfur: 0.48-0.6 parts.

[0007] Furthermore, the ingredients of the masterbatch rubber include, by weight: SMR10 natural rubber: 100-110 parts, zinc oxide: 3-5 parts, sulfur: 2-3 parts, accelerator NOBS: 0.3-0.6 parts, antioxidant RD: 2-3 parts, aromatic oil 6-8 parts, and carbon black N375: 35-50 parts.

[0008] A method for preparing an adhesive mortar, the method comprising: S1: Separate the glue and swell it according to the following proportions: by weight, glue: 18-20 parts, 120# gasoline: 140-150 parts, tert-butyl phenolic resin: 1.9-2 parts, swelling time: 3-5 days; S2: Stir continuously for 7-8 hours in a speed-adjustable disperser, and then leave for 12-15 hours; S3: Add 140-150 parts of 120# gasoline and mix with the uniformly stirred slurry; stir continuously for 7-8 hours in a speed-adjustable disperser.

[0009] The preparation process of the glue glue comprises: By weight: masterbatch glue: 30-40 parts, accelerator NOBS: 0.1-0.2 parts, sulfur: 0.48-0.6 parts; Hot refining of masterbatch rubber: roller distance: 5-6mm, refining time: 40-50min, roller temperature 60-70℃; Add accelerator NOBS and sulfur into the masterbatch and mix them: roll the mixing roller 5-6 times, roll the mixing roller 5-6 times, and mix the mixing time for 5-7 minutes; Lower film: roller distance: 3-4mm, mixing time: 5-7min, lower film size: 500mm*700mm-600mm*800mm.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The invention is used as the adhesive mortar of the tire blank, and improves the bubbles and delamination of the finished tire by increasing the viscosity between the components. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0012] Embodiment 1, a bonding paste, calculated by weight, comprises: Glue: 18 parts, 120# gasoline: 280 parts, tert-butyl phenolic resin: 1.9 parts.

[0013] The glue, calculated by weight, includes: masterbatch glue: 35 parts, accelerator NOBS: 0.1 parts, sulfur: 0.48 parts.

[0014] The ingredients of the masterbatch rubber, in parts by weight, include: SMR10 natural rubber: 105 parts, zinc oxide: 4 parts, sulfur: 2 parts, accelerator NOBS: 0.4 parts, antioxidant RD: 2 parts, aromatic oil 7 parts, carbon black N375: 38 parts.

[0015] Wherein: the preparation process includes: S1: Divide the glue and swell it according to the ratio, and take half of the ratio of 120# gasoline: swelling time: 4 days; S2: Stir continuously in a speed-adjustable disperser for 7 hours, and then leave for 13 hours; S3: Add the other half of 120# gasoline and mix it with the slurry after uniform stirring and stopping; stir continuously for 7 hours in the speed-adjustable disperser.

[0016] The preparation process of glue includes: Hot refining of masterbatch rubber: roll distance: 5mm, refining time: 45min, roll temperature 65℃; the roll distance here refers to the gap between the two rolls of the mixing mill.

[0017] Add accelerator NOBS and sulfur into the masterbatch and mix them: mixing roll: 5 times, rolling: 6 times, mixing time: 6 minutes; Lower film: roller distance: 4mm, mixing time: 6min, lower film size: 500mm*700mm.

[0018] The preparation of masterbatch slurry is achieved by mixing in the prior art.

[0019] Embodiment 2, a bonding paste, calculated by weight, comprises: Glue: 19 parts, 120# gasoline: 290 parts, tert-butyl phenolic resin: 1.9 parts.

[0020] The glue, calculated by weight, includes: masterbatch glue: 30 parts, accelerator NOBS: 0.1 parts, sulfur: 0.48 parts.

[0021] The ingredients of the masterbatch rubber, in parts by weight, include: SMR10 natural rubber: 100 parts, zinc oxide: 3 parts, sulfur: 2 parts, accelerator NOBS: 0.3 parts, antioxidant RD: 2 parts, aromatic oil 6 parts, carbon black N375: 35 parts.

[0022] Wherein: the preparation process includes: S1: Divide the glue and swell it according to the ratio, and take half of the ratio of 120# gasoline: swelling time: 3-5 days; S2: Stir continuously for 7 hours in a speed-adjustable disperser, and then leave for 12 hours; S3: Add the other half of 120# gasoline and mix it with the slurry after uniform stirring and stopping; stir continuously for 7 hours in the speed-adjustable disperser.

[0023] The preparation process of glue includes: Hot refining of masterbatch rubber: roller distance: 5mm, refining time: 40min, roller temperature 60℃; Add accelerator NOBS and sulfur into the masterbatch and mix them: roll the mixing roller 5 times, roll the mixing roller 5 times, and mix the mixing time for 5 minutes; Lower film: roller distance: 3mm, mixing time: 5min, lower film size: 500mm*700mm.

[0024] Embodiment 3, a bonding paste, calculated by weight, comprising: Glue: 20 parts, 120# gasoline: 300 parts, tert-butyl phenolic resin: 2 parts.

[0025] The glue, calculated by weight, includes: masterbatch glue: 40 parts, accelerator NOBS: 0.2 parts, sulfur: 0.6 parts.

[0026] The ingredients of the masterbatch rubber, in parts by weight, include: SMR10 natural rubber: 110 parts, zinc oxide: 5 parts, sulfur: 3 parts, accelerator NOBS: 0.6 parts, antioxidant RD: 3 parts, aromatic oil 8 parts, carbon black N375: 50 parts.

[0027] Wherein: the preparation process includes: S1: Divide the glue and swell it according to the ratio, and take half of the ratio of 120# gasoline: swelling time: 3-5 days; S2: Stir continuously for 8 hours in a speed-adjustable disperser, and then leave for 15 hours; S3: Add the other half of 120# gasoline and mix it with the slurry after uniform stirring and stopping; stir continuously for 8 hours in a speed-adjustable disperser.

[0028] The preparation process of glue includes: Hot refining of masterbatch rubber: roller distance: 6mm, refining time: 50min, roller temperature 70℃; Add accelerator NOBS and sulfur into the masterbatch and mix: mixing roll: 6 times, rolling: 6 times, mixing time: 7 minutes; Lower film: roller distance: 4mm, mixing time: 7min, lower film size: 600mm*800mm.

[0029] The adhesive slurry prepared in the example was tested for viscosity, and the value was between 13-15 mpm.s. It was used between tire bead components, and it was found that there were no bubbles or delamination in the finished tire.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adhesive paste, characterized in that: Calculated by weight, including: Glue: 18-20 parts, 120# gasoline: 280-300 parts, tert-butyl phenolic resin: 1.9-2 parts.

2. The adhesive paste according to claim 1, characterized in that: The glue mortar, calculated by weight, includes: 30-40 parts of masterbatch glue mortar, 0.1-0.2 parts of accelerator NOBS, and 0.48-0.6 parts of sulfur.

3. The adhesive paste according to claim 2, characterized in that: The ingredients of the masterbatch rubber include, by weight: SMR10 natural rubber: 100-110 parts, zinc oxide: 3-5 parts, sulfur: 2-3 parts, accelerator NOBS: 0.3-0.6 parts, antioxidant RD: 2-3 parts, aromatic oil 6-8 parts, carbon black N375: 35-50 parts.

4. A method for preparing an adhesive mortar according to any one of claims 1 to 3, characterized in that: The method includes: S1: Separate the glue and swell it according to the following proportions: by weight, glue: 18-20 parts, 120# gasoline: 140-150 parts, tert-butyl phenolic resin: 1.9-2 parts, swelling time: 3-5 days; S2: Stir continuously in a speed-adjustable disperser for 7-8 hours, and then leave for 12-15 hours; S3: Add 140-150 parts of 120# gasoline and mix with the uniformly stirred slurry; stir continuously for 7-8 hours in a speed-adjustable disperser.

5. The method for preparing an adhesive paste according to claim 4, characterized in that: The preparation process of the glue glue comprises: By weight: masterbatch glue: 30-40 parts, accelerator NOBS: 0.1-0.2 parts, sulfur: 0.48-0.6 parts; Hot refining of masterbatch rubber: roller distance: 5-6mm, refining time: 40-50min, roller temperature 60-70℃; Add accelerator NOBS and sulfur into the masterbatch and mix them: roll the mixing roller 5-6 times, roll the mixing roller 5-6 times, and mix the mixing time for 5-7 minutes; Lower film: roller distance: 3-4mm, mixing time: 5-7min, lower film size: 500mm*700mm-600mm*800mm.