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A kind of powder active release agent, powder reclaimed rubber and production method thereof

A technology of release agent and reclaimed rubber, which is applied in the field of reclaimed rubber to achieve good activity, high compatibility and good performance

Active Publication Date: 2021-10-22
李晓武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the patent improves the desulfurization link through various means to improve the quality of reclaimed rubber and improve the desulfurization environment (environmental pollution control), it does not get rid of the fact that conventional reclaimed rubber still needs to be masticated, refined, and produced in the production of finished regenerated rubber. This is because the improved method of the patented reclaimed rubber only has the commonality of the conventional reclaimed rubber production process, and cannot achieve the stability of the depth and uniformity of desulfurization in the desulfurization process. And consistency, this defect can only be made up by subsequent processes such as mastication and refining, in order to produce finished recycled rubber

Method used

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  • A kind of powder active release agent, powder reclaimed rubber and production method thereof
  • A kind of powder active release agent, powder reclaimed rubber and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A kind of powder reclaimed rubber, its production method comprises the following steps:

[0049] (1) Preparation of powdery active release agent A: in parts by weight,

[0050] Silica wet product, calculated as dry product: 10

[0051] Sodium silicate: 0.2

[0052] Tall Oil: 8

[0053] Zinc stearate: 0.1

[0054] Pentachlorothiophenol zinc salt: 0.15

[0055] Sodium petroleum sulfonate: 0.3

[0056] ① Prepare sodium silicate into 10% aqueous solution a; ② Mix a with tall oil to form b; ③ Dissolve pentachlorothiophenol zinc salt and zinc stearate in petroleum sodium sulfonate to form c; ④ mix c Add dropwise to b to emulsify to form a water-soluble active release agent with a pH of 8-10 to obtain d; ⑤ mix d with the wet product of white carbon black for beating, pulverize to form e, and flash dry to obtain powdery active release agent A ;

[0057] (2) Add 10% of the waste rubber particles to the step (1) powdery active release agent A, and perform high-speed shear ...

Embodiment 2

[0077] A kind of powder reclaimed rubber, its production method comprises the following steps:

[0078] (1) Preparation of powdery active release agent A: in parts by weight,

[0079] Silica wet product, calculated as dry product: 10

[0080] Sodium silicate: 0.4

[0081] Tall Oil: 10

[0082] Zinc stearate: 0.2

[0083] Pentachlorothiophenol zinc salt: 0.2

[0084] Sodium petroleum sulfonate: 0.1

[0085] ① Prepare sodium silicate into 10% aqueous solution a; ② Mix a with tall oil to form b; ③ Dissolve pentachlorothiophenol zinc salt and zinc stearate in petroleum sodium sulfonate to form c; ④ mix c Add dropwise to b to emulsify to form a water-soluble active release agent with a pH of 8-10 to obtain d; ⑤ mix d with the wet product of white carbon black for beating, pulverize to form e, and flash dry to obtain powdery active release agent A ;

[0086] (2) Add 15% of the waste rubber particles to the step (1) powdery active release agent, and perform high-speed shear ac...

Embodiment 3

[0106] A kind of powder reclaimed rubber, its production method comprises the following steps:

[0107] (1) Preparation of powdery active release agent A: in parts by weight,

[0108] Silica wet product, calculated as dry product: 12

[0109] Sodium silicate: 0.5

[0110] Tall Oil: 5

[0111] Zinc stearate: 0.3

[0112] Pentachlorothiophenol zinc salt: 0.1

[0113] Sodium petroleum sulfonate: 0.2

[0114] ① Prepare sodium silicate into 12% aqueous solution a; ② Mix a with tall oil to form b; ③ Dissolve pentachlorothiophenol zinc salt and zinc stearate in petroleum sodium sulfonate to form c; ④ mix c Add dropwise to b to emulsify to form a water-soluble active release agent with a pH of 8-10 to obtain d; ⑤ mix d with the wet product of white carbon black for beating, pulverize to form e, and flash dry to obtain powdery active release agent A ;

[0115] (2) Add 20% of waste rubber particles to step (1) powdery active release agent A, perform high-speed shear activation in...

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Abstract

The invention discloses a powder active release agent, powder reclaimed rubber and a production method thereof. The powder reclaimed rubber adopts wet blending of white carbon black, sodium silicate, tall oil, zinc stearate, pentachloro Zinc salt of sulfur phenol and sodium petroleum sulfonate to obtain a powdery active release agent, and then activate it with waste rubber particles through high-speed shearing, so that the waste rubber particles can be mechanically modified and at the same time obtain the adhesion and protection of the release agent from the surface to the inside. Intervention to obtain activated rubber powder. The activated rubber powder is desulfurized by the water-oil method in the water-soluble desulfurization additive. The surface is wrapped to obtain desulfurized rubber powder, and finally powdered spacer calcium carbonate is added to obtain powder reclaimed rubber with different fineness. The powder reclaimed rubber obtained in the present invention has high plasticity and uniform particle fineness, has both the functions of rubber powder and reclaimed rubber, is convenient for operation, convenient for storage and transportation, and is energy-saving, efficient and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of reclaimed rubber, and in particular relates to a powdery active release agent, powdered reclaimed rubber and a production method thereof. Background technique [0002] There are various types of rubber products, involving national economic production and daily production and life, heavy chemical industries such as transportation, building materials, mining, machinery manufacturing, electronic information, and emerging industries involved in national economic production. The manufacturing industry is inseparable from the development of rubber; in daily life, light industrial rubber products and parts for daily use and medicine also rely on the development of rubber. In recent years, the pollution of global waste rubber has become more and more a burden and hidden danger to the world environment. The comprehensive utilization of waste rubber is an important means to solve the environmental pollution caused ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/04C08K7/26C08K3/34C08K5/098C08K5/375C08K5/42C08L91/00C08L17/00C08J11/20C08J11/22C08J11/28
CPCC08J11/20C08J11/22C08J11/28C08J2317/00C08K3/34C08K5/098C08K5/375C08K5/42C08K7/26C08K13/04C08L91/00Y02W30/62
Inventor 李晓武胡童杰乔冠中李玉柱王晓红杨小暄陈飞
Owner 李晓武
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