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A kind of pre-dispersed masterbatch for rubber vulcanization and crosslinking and preparation method thereof

A technology for pre-dispersing masterbatch and rubber, which is applied in the field of rubber auxiliaries and their preparation to achieve the effects of improving dispersibility, good external lubrication effect and improving mechanical properties

Active Publication Date: 2016-08-24
NINGBO ACTMIX POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above patents all involve the improvement of the formulation of the pre-dispersed masterbatch to increase the vulcanization activity of the rubber, but none of them involve the combination of dual active ingredients to improve the vulcanization performance of the rubber and increase the crosslinking degree of the rubber. Coupling agent and ultra-fine filler to improve the mechanical properties of rubber and improve the viscous flow during the mixing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Raw materials are composed according to mass fraction: 30 parts of thiocyanuric acid, 20 parts of 1,1'-dithiobiscaprolactam, 5 parts of coupling agent, 3 parts of inorganic filler, 5 parts of softening oil, 2 parts of processing aid and rubber Carrier 35 parts. Among them, the coupling agent is composed of 2.5 parts of γ-methacryloxypropyl trimethoxysilane and 2.5 parts of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate; the softening oil is composed of 2.5 parts of paraffin Base rubber oil and 2.5 parts of naphthenic rubber oil; processing aid is composed of 1 part of sodium dodecylbenzene sulfonate and 1 part of sorbitan monolaurate; rubber carrier is composed of 10.5 parts of EPDM rubber and 24.5 parts It is composed of nitrile rubber; the inorganic filler is composed of 1.5 parts of kaolin with a fineness of 300 mesh and 1.5 parts of talcum powder with a fineness of 2500 mesh.

[0030] Preparation method: put rubber carrier, inorganic filler and softened oi...

Embodiment 2

[0032] Raw materials are composed in parts by mass: 35 parts of thiocyanuric acid, 25 parts of 1,1'-dithiobiscaprolactam, 3 parts of coupling agent, 5 parts of filler, 8 parts of softening oil, 4 parts of processing aid and rubber Carrier 20 copies. Wherein, the coupling agent is composed of 1.5 parts of γ-methacryloxypropyl trimethoxysilane and 1.5 parts of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate; The meter consists of 4 parts of paraffinic rubber oil and 4 parts of naphthenic rubber oil; the processing aid consists of 2 parts of sodium dodecylbenzene sulfonate and 2 parts of sorbitan monolaurate; the rubber carrier consists of 6 parts of ternary It is composed of ethylene propylene rubber and 14 parts of nitrile rubber; the inorganic filler is composed of 2.5 parts of kaolin with a fineness of 300 mesh and 2.5 parts of talcum powder with a fineness of 2500 mesh.

[0033] Preparation method: same as Example 1.

Embodiment 3

[0035] Raw materials are composed according to mass fraction: 40 parts of thiocyanic acid, 30 parts of 1,1'-dithiobiscaprolactam, 3 parts of coupling agent, 5 parts of filler, 8 parts of softening oil, 4 parts of processing aid and rubber carrier 10 servings. Wherein, the coupling agent is composed of 1.5 parts of γ-methacryloxypropyl trimethoxysilane and 1.5 parts of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate; The meter consists of 4 parts of paraffinic rubber oil and 4 parts of naphthenic rubber oil; the processing aid consists of 2 parts of sodium dodecylbenzene sulfonate and 2 parts of sorbitan monolaurate; the rubber carrier consists of 3 parts of ternary It is composed of ethylene propylene rubber and 7 parts of nitrile rubber; the inorganic filler is composed of 2.5 parts of kaolin with a fineness of 300 mesh and 2.5 parts of talcum powder with a fineness of 2500 mesh.

[0036] Preparation method: same as Example 1.

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PUM

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Abstract

The invention discloses a pre-dispersed master batch particle for rubber vulcanization cross-linking and a preparation method of the pre-dispersed master batch particle. The pre-dispersed master batch particle comprises, by weight, 30-50 parts of trithiocyanuric acid, 20-40 parts of 1, 1'-dithiobiscaprolactam, 3-10 parts of coupling agents, 3-10 parts of inorganic fillers, 5-10 parts of softening oil, 2-5 parts of processing agents and 5-40 parts of rubber carriers. By the preparation method of the pre-dispersed master batch particle, dispersity of active components is improved, the master batch particle is uniformly discharged, the surface of the particle is smooth, the master batch particle has fine processing performance and is used for preparing rubber materials, vulcanization time is shortened, and the mechanical property of vulcanized rubber is effectively improved.

Description

technical field [0001] The invention relates to a rubber additive and a preparation method thereof, in particular to a pre-dispersed masterbatch used for rubber vulcanization and crosslinking and a preparation method thereof. Background technique [0002] Rubber additives mainly include rubber accelerators, vulcanization activators, antioxidants, processing aids and other special functional rubber additives. In recent years, with the development of rubber additives industry, in order to eliminate the chemical smog and dust pollution problems in the rubber processing process, one of the important directions for the development of additives is product compounding and master batching. Pre-dispersed powdered chemical additives in a certain bonding system by special means, and then granulated, the additive masterbatch made can be used to replace traditional powdered additives, improve the operating environment, improve product quality, and thus help After the agent is granulated...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L23/16C08L91/00C08K13/02C08K5/37C08K5/43C08K3/34C08K5/5419C08K5/42C08K5/52
CPCC08K2201/003C08L9/02C08L2205/035C08L23/16C08L91/06C08L91/00C08K13/02C08K5/378C08K3/346C08K3/34
Inventor 连千荣
Owner NINGBO ACTMIX POLYMER