阅读说明：本技术 一种复合胶粉爬坡垫及其制备方法 (Composite rubber powder climbing pad and preparation method thereof ) 是由 江文养 王敏 于 2020-04-28 设计创作，主要内容包括：本发明公开了一种复合胶粉爬坡垫及其制备方法,具体涉及橡胶材料技术领域,其组分按质量份数配比如下：5~10份棉浆纤维素组分、5~10份尼龙组分、60~90份胎顶胶粉、5~10份乙丙橡胶、1~4份硫化剂、2~6份硫化活性剂、3~8份稀土组分、2~4份促进剂、0.8~3份防老剂、0.5~6份定型剂、5~15份钛酸酯偶联剂、2~6份石蜡、10~30份导电炭黑等。本发明通过采用天然棉纤维素及尼龙对橡胶材料进行改性处理,充分利用棉纤维素多孔、高轻度、高弹性以及尼龙高耐磨的物理特性,能够有效提高爬坡垫的机械强度、抗撕裂度性。(The invention discloses a composite rubber powder climbing pad and a preparation method thereof, and particularly relates to the technical field of rubber materials, wherein the composite rubber powder climbing pad comprises the following components in parts by weight: 5-10 parts of cotton pulp cellulose component, 5-10 parts of nylon component, 60-90 parts of tire top rubber powder, 5-10 parts of ethylene propylene rubber, 1-4 parts of vulcanizing agent, 2-6 parts of vulcanizing activator, 3-8 parts of rare earth component, 2-4 parts of accelerator, 0.8-3 parts of anti-aging agent, 0.5-6 parts of setting agent, 5-15 parts of titanate coupling agent, 2-6 parts of paraffin, 10-30 parts of conductive carbon black and the like. According to the invention, the natural cotton cellulose and nylon are adopted to modify the rubber material, and the physical characteristics of porosity, high lightness, high elasticity and high wear resistance of the nylon are fully utilized, so that the mechanical strength and the tear resistance of the climbing pad can be effectively improved.)

1. The composite rubber powder climbing pad is characterized by comprising the following components in parts by weight:

5-10 parts of cotton cellulose component, 5-10 parts of nylon component, 60-90 parts of tire top rubber powder, 5-10 parts of ethylene propylene rubber, 1-4 parts of vulcanizing agent, 2-6 parts of vulcanizing activator, 3-8 parts of rare earth component, 2-4 parts of accelerator, 0.8-3 parts of anti-aging agent, 0.5-6 parts of setting agent, 5-15 parts of titanate coupling agent, 2-6 parts of paraffin, 10-30 parts of conductive carbon black and 3-8 parts of nano calcium carbonate, 2-6 parts of nano zinc oxide, 2-4 parts of methyl ethyl ketone peroxide, 5-20 parts of cobalt naphthenate, 5-10 parts of aluminum powder, 1-3 parts of magnesium oxide, 2-6 parts of aluminum hydroxide, 1-2 parts of titanium dioxide, 3-5 parts of antimony trioxide, 1-4 parts of phthalate, 1-2 parts of trimethylolpropane trimethacrylate, 1-5 parts of isooctyl thioglycolate and 3-5 parts of tert-butylphenol aldehyde tackifying resin.

2. The composite rubber powder climbing pad according to claim 1, wherein the cotton cellulose components comprise 30-50: 6-8: 3-5: 1-5 mass ratio of cotton cellulose, sodium hydroxide, urea and zinc hydroxide, and the polymerization degree of the cotton cellulose is 1000-2500.

3. The composite rubber powder climbing pad according to claim 1, wherein the nylon component comprises a nylon material, and the nylon material is one or more of nylon 6, nylon 66, nylon 1010, nylon 46, nylon 610 and copolymerized nylon.

4. The composite rubber powder climbing mat according to claim 1, wherein the rare earth component comprises rare earth powder and a dispersing agent in a mass ratio of 8-15: 0.1-0.5.

5. The composite rubber powder climbing pad according to claim 4, wherein the rare earth powder is one or more of lanthanum oxide, cerium phosphate, neodymium oxide, yttrium oxide, praseodymium oxide, cerium carbonate powder and cerium hydroxide; the dispersing agent is one or more of methylene dinaphthalene sodium sulfonate, dibutyl naphthalene sodium sulfonate, triethyl hexyl phosphoric acid and fatty acid polyglycol ester.

6. The preparation method of the composite rubber powder climbing pad as claimed in claims 1 to 5, which is characterized by comprising the following steps:

s1) putting all the raw materials except the cotton cellulose component and the nylon component in the formula into a reaction kettle, and blending for 5-10 h under the environmental conditions that the temperature is 60-80 ℃, the vacuum degree is 50-500 Pa and the pressure is 0.5-1 Mpa;

s2) adding a cotton cellulose component and a nylon component into a reaction kettle, blending for 5-10 min under the environmental conditions that the temperature is 60-80 ℃, the vacuum degree is 50-500 Pa and the pressure is 1-2 Mpa to obtain a composite rubber powder climbing pad material, and preparing the composite rubber powder climbing pad material into a composite rubber powder climbing pad.

7. The method for preparing the composite rubber powder climbing mat according to claim 6, wherein the method for preparing the cotton cellulose component comprises the following steps:

1) placing cotton cellulose with the polymerization degree DP = 1000-2500 in an environment with the temperature of 150-250 ℃ for heating for 30-60 min to obtain a heat-activated cotton cellulose material;

2) preparing a hydrosolvent containing 6-8 wt% of sodium hydroxide, 3-5 wt% of urea and 1-5 wt% of zinc oxide;

3) dispersing the thermally activated cotton cellulose material in an aqueous solvent according to the mass ratio of the thermally activated cotton cellulose material to the aqueous solvent of 30-50: 100, freezing the thermally activated cotton cellulose material in an environment of-18 to-48 ℃ for 5 to 48 hours, and thawing to obtain the cotton cellulose component.

8. The preparation method of the composite rubber powder climbing pad according to claim 6, wherein the nylon component is prepared by dispersing a nylon material in an ionic liquid and blending at a temperature of 80-100 ℃.

9. The method for preparing the composite rubber powder climbing pad according to claim 8, wherein the ionic liquid is one of 1-methyl-3-ethylimidazole bromide, 1-methyl-3-propylimidazole bromide, 1-methyl-3-butylimidazole bromide, 1-methyl-3-ethylimidazole chloride, 1-methyl-3-propylimidazole chloride and 1-methyl-3-butylimidazole chloride.

10. The method for preparing the composite rubber powder climbing mat according to claim 6, wherein the method for preparing the rare earth component comprises the following steps:

preparing a mixture with the mass ratio of 8-15: 75-85: 0.1-0.5 of rare earth powder, deionized water and a dispersing agent, blending the rare earth powder and the deionized water, adding the dispersing agent, and blending for 1-20 minutes at 40-80 ℃ to obtain the rare earth component.

Technical Field

The invention belongs to the technical field of rubber materials, and particularly relates to a composite rubber powder climbing pad and a preparation method thereof.

Background

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the composite rubber powder climbing pad and the preparation method thereof, the rubber material is modified by adopting the natural cotton cellulose and the nylon, the physical characteristics of porosity, high lightness, high elasticity and high wear resistance of the nylon are fully utilized, and the purpose is to improve the mechanical strength and the tear resistance of the climbing pad.

In order to realize the aim, the invention provides a composite rubber powder climbing pad which comprises the following components in parts by weight: 5-10 parts of cotton pulp cellulose component, 5-10 parts of nylon component, 60-90 parts of tire top rubber powder, 5-10 parts of ethylene propylene rubber, 1-4 parts of vulcanizing agent, 2-6 parts of vulcanizing activator, 3-8 parts of rare earth component, 2-4 parts of accelerator, 0.8-3 parts of anti-aging agent, 0.5-6 parts of setting agent, 5-15 parts of titanate coupling agent, 2-6 parts of paraffin, 10-30 parts of conductive carbon black and

and/or 3-8 parts of nano calcium carbonate, and/or 2-6 parts of nano zinc oxide, and/or 2-4 parts of methyl ethyl ketone peroxide, and/or 5-20 parts of cobalt naphthenate, and/or 5-10 parts of aluminum powder, and/or 1-3 parts of magnesium oxide, and/or 2-6 parts of aluminum hydroxide, and/or 1-2 parts of titanium dioxide, and/or 3-5 parts of antimony trioxide, and/or 1-4 parts of phthalate, and/or 1-2 parts of trimethylolpropane trimethacrylate, and/or 1-5 parts of isooctyl thioglycolate, and/or 3-5 parts of tert-butylphenol aldehyde tackifying resin.

The adhesive comprises necessary components and selective components, wherein the necessary components comprise a cotton pulp cellulose component, a nylon component, a tire apex rubber powder, ethylene propylene rubber, a vulcanizing agent, a vulcanizing activator, a rare earth component, an accelerant, an anti-aging agent, a setting agent, a titanate coupling agent, paraffin and conductive carbon black, and the selective components comprise several kinds of nano calcium carbonate, nano zinc oxide, methyl ethyl ketone peroxide, cobalt naphthenate, aluminum powder, magnesium oxide, aluminum hydroxide, titanium dioxide, antimony trioxide, phthalate, trimethylolpropane trimethacrylate, isooctyl thioglycolate and tert-butylphenol aldehyde tackifying resin.

Preferably, in the technical scheme, the cotton pulp cellulose comprises the components of cotton pulp cellulose, sodium hydroxide, urea and zinc hydroxide in a mass ratio of 30-50: 6-8: 3-5: 1-5, and the polymerization degree of the cotton pulp cellulose is 1000-2500.

Preferably, in the above technical scheme, the nylon component includes a nylon material, and the nylon material is one or more of nylon 6, nylon 66, nylon 1010, nylon 46, nylon 610, and copolymerized nylon.

Preferably, in the technical scheme, the rare earth components comprise rare earth powder and a dispersing agent in a mass ratio of 8-15: 0.1-0.5.

Preferably, in the above technical scheme, the rare earth powder is one or more of lanthanum oxide, cerium phosphate, neodymium oxide, yttrium oxide, praseodymium oxide, cerium carbonate powder and cerium hydroxide; the dispersing agent is one or more of methylene dinaphthalene sodium sulfonate, dibutyl naphthalene sodium sulfonate, triethyl hexyl phosphoric acid and fatty acid polyglycol ester.

On the other hand, the invention provides a preparation method of the composite rubber powder climbing pad, which comprises the following steps:

s1) mixing 60-90 parts of tire apex rubber powder, 5-10 parts of ethylene propylene rubber, 1-4 parts of vulcanizing agent, 2-6 parts of vulcanizing activator, 3-8 parts of rare earth component, 2-4 parts of accelerant, 0.8-3 parts of anti-aging agent, 0.5-6 parts of shaping agent, 5-15 parts of titanate coupling agent, 2-6 parts of paraffin, 10-30 parts of conductive carbon black, and/or 3-8 parts of nano calcium carbonate, and/or 2-6 parts of nano zinc oxide, and/or 2-4 parts of methyl ethyl ketone peroxide, and/or 5-20 parts of cobalt naphthenate, and/or 5-10 parts of aluminum powder, and/or 1-3 parts of magnesium oxide, and/or 2-6 parts of aluminum hydroxide, and/or 1-2 parts of titanium dioxide, and/or 3-5 parts of antimony trioxide, and/or 1-4 parts of phthalate, and/or 1-2 parts of trimethylolpropane trimethacrylate, And/or 1-5 parts of isooctyl thioglycolate and/or 3-5 parts of tert-butylphenol tackifying resin are placed in a reaction kettle and are blended for 5-10 hours under the environmental conditions that the temperature is 60-80 ℃, the vacuum degree is 50-500 Pa and the pressure is 0.5-1 Mpa;

s2) adding 5-10 parts of cotton pulp cellulose solution and 5-10 parts of nylon solution into a reaction kettle according to the mass ratio, and blending for 5-10 min under the environmental conditions that the temperature is 60-80 ℃, the vacuum degree is 50-500 Pa and the pressure is 1-2 Mpa to obtain the composite rubber powder climbing pad material.

Preferably, the method for preparing the cotton pulp cellulose solution in the technical scheme comprises the following steps:

1) placing cotton pulp cellulose with the polymerization degree DP = 1000-2500 in an environment with the temperature of 150-250 ℃ for heating for 30-60 min to obtain a thermally activated cotton pulp cellulose material;

2) preparing a hydrosolvent containing 6-8 wt% of sodium hydroxide, 3-5 wt% of urea and 1-5 wt% of zinc oxide;

3) dispersing the thermally activated cotton pulp cellulose material in the aqueous solvent according to a mass ratio of 30-50: 100, freezing for 5-48 h in an environment of-18 to-48 ℃, and thawing to obtain the cotton pulp cellulose solution.

Preferably, the method for preparing the nylon solution in the above technical scheme comprises the following steps:

dispersing a nylon material in an ionic liquid, and blending at the temperature of 80-100 ℃ to obtain a nylon solution;

the nylon material is one or more of nylon 6, nylon 66, nylon 1010, nylon 46, nylon 610 and copolymerized nylon; the ionic liquid is one of 1-methyl-3-ethylimidazole bromine, 1-methyl-3-propylimidazole bromine, 1-methyl-3-butylimidazole bromine, 1-methyl-3-ethylimidazole chlorine, 1-methyl-3-propylimidazole chlorine and 1-methyl-3-butylimidazole chlorine.

Preferably, the method for preparing the rare earth component in the above technical scheme comprises the following steps:

preparing a mixture with the mass ratio of 8-15: 75-85: 0.1-0.5 of rare earth powder, deionized water and a dispersing agent, blending the rare earth powder and the deionized water, adding the dispersing agent, and blending for 1-20 minutes at 40-80 ℃ to obtain the rare earth component;

the rare earth powder is one or more of lanthanum oxide, cerium phosphate, neodymium oxide, yttrium oxide, praseodymium oxide, cerium carbonate powder and cerium hydroxide; the dispersing agent is one or more of methylene dinaphthalene sodium sulfonate, dibutyl naphthalene sodium sulfonate, triethyl hexyl phosphoric acid and fatty acid polyglycol ester.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects: according to the invention, the natural cotton cellulose and nylon are adopted to modify the rubber material, and the physical characteristics of porosity, high lightness, high elasticity and high wear resistance of the nylon are fully utilized, so that the mechanical strength and the tear resistance of the climbing pad can be effectively improved.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following examples further illustrate the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.