Rubber color master-batch and preparation method thereof

A color masterbatch and rubber technology, applied in the field of rubber color masterbatch and its preparation, can solve the problems of poor rubber medium dispersion performance, poor light resistance, insufficient color development of pigments, etc., to increase absorption and reflection, improve light resistance, reduce The effect of surface energy

Active Publication Date: 2012-07-18
南通市宏鼎新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Poor storage stability, mainly manifested in unscientific surface treatment of pigments or poor hydrophobicity of selected surfactants, resulting in new aggregation of pigments during storage for half a year or one year, especially black and blue color masterbatches serious
[0006] 2. The color of the product is not bright, the color is the expression of the color of the pigment, and the pigment will not only deliquesce after being eroded by water, but more seriously, the dispersion performance in the rubber medium is poor, which leads to insufficient color development of the pigment in the product, resulting in The main reason is that liquid paraffin, that is, white oil is used as the wetting agent of the pigment, and the sulfonic acid group on the carbon chain of white oil can easily absorb the moisture in the air.
[0007] 3. The relative light resistance of the product is poor. The rubber product must be vulcanized at high temperature to make it change from a linear structure to a network structure, thereby improving the strength and elongation of the product. After high temperature vulcanization, the internal structure of the product is rearranged until it is relatively Stablize

Method used

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  • Rubber color master-batch and preparation method thereof
  • Rubber color master-batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Preparation of red or yellow or green rubber masterbatch

[0043] In a 500l kneader, add 20Kg of alkyl oil, 3Kg of calcium octadecanoate, 3.5Kg of polyethylene with a molecular weight of 1500, start stirring, gradually raise the temperature to 85-90°C, and keep it warm for 1 hour; cool down to 50-55°C, Add 50Kg of the corresponding red, yellow or green pigments among the above-mentioned commonly used pigments, knead and moisten for 1-1.5 hours; add 0.5Kg of octadecyl imidazoline, mix for 0.5 hours, then grind on a three-roller machine, pour the ground material into In a 500L kneader for blending, start stirring, add 21Kg of rubber material and heat up to 65°C and mix for 1.5 hours, add 2Kg of nano-scale silica material, and mix for another 0.5 hour, take out the rolled sheet and cut to obtain the finished product.

[0044] The enterprise standard was adopted for testing, and the results are as follows:

[0045] project

Embodiment 2

[0047] Preparation of blue rubber masterbatch:

[0048] In a 500l kneader, add 25Kg of alkyl oil, 5Kg of octadecanoic acid calcium salt, and 3.5Kg of polyethylene with a molecular weight of 1500, start stirring, gradually heat up to 85-90°C, and keep warm for 1 hour; cool down to 50-55°C, Add 50Kg of blue pigment, knead and moisten for 1-1.5 hours; add 1Kg of octadecyl imidazoline, mix for 0.5 hours, then grind on a three-roller machine, pour the ground material into a 500L kneader for blending, start stirring, add After heating 13.5Kg of the rubber material to 80°C and keeping it warm for 4 hours, add 2Kg of nano-scale silicon dioxide material, mix for another 0.5 hour, take out the rolled sheet and cut it to obtain the finished product.

[0049] Enterprise standards are used for testing, which meet the standard indicators.

Embodiment 3

[0051] Preparation of black rubber masterbatch:

[0052] In a 500l kneader, add 25Kg of alkyl oil, 5Kg of octadecanoic acid calcium salt, 8Kg of polyethylene with a molecular weight of 1500, start stirring, gradually raise the temperature to 85-90°C, and keep it warm for 1 hour; cool down to 50-55°C, add Knead and wet 50Kg of black pigment for 1.5 hours; add 1Kg of octadecyl imidazoline, mix for 0.5 hours, then grind on a three-roll machine, pour the ground material into a 500L kneader for blending, start stirring, and add 10.5Kg of rubber After raising the temperature to 90°C and keeping it warm for 1 hour, add 1Kg of nano-sized zinc oxide material, mix for another 0.5 hour, take out the rolling sheet and cut it to obtain the finished product.

[0053] Enterprise standards are used for testing, which meet the standard indicators.

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Abstract

The invention relates to a rubber color master-batch and the preparation method thereof, belongs to the rubber master-batch technology field. The rubber master-batch is prepared by the following materials by weight parts of: pigment 50-65, naphthenic oil 10-25, calcium dodecanoate 3-5 parts, stearic acid derivative 0.5-1 part, nanometer material 0.5-2 parts, low molecular polymer 0-8 parts and rubber compound 15-22 parts. Compared with the prior arts, The invention adopts compound surface treatment method, covers the pigment particles to the maximal degree, reduces the surface energy to keep it in stable state; adopts naphthenic oil as moistening agent, avoids pigment deliquescence, and guarantees the brilliant color of product; and adopts nanometer material which can re-arrange quickly with the rubber compound structure and diffuse after rubber product is treated by high temperature sulfuration, increases the absorption and reflection to light, and improves the light resistance of product.

Description

[technical field] [0001] The invention relates to the technical field of rubber color masterbatch, in particular to a rubber color masterbatch and a preparation method thereof. [Background technique] [0002] Rubber color masterbatch, as the name implies, is a coloring matrix for the coloring of rubber products. The main components of rubber color masterbatch are: pigments, surfactants and carriers. Only scientifically selected pigments, surfactants and carriers are processed by special processes, and then Then combine them in an appropriate ratio to successfully develop a rubber masterbatch with bright color and excellent performance. It is mainly suitable for the coloring of rubber products and rubber-plastic blended products. [0003] Rubber products have different requirements for rubber types because of their different uses. Rubber is divided into two categories: natural and synthetic rubber. Natural rubber generally uses smoked sheet rubber 3# and 4#; commonly used sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08L7/00C08L9/06C08L23/16C08K13/02C08K5/01C08K5/09
Inventor 孙淦之
Owner 南通市宏鼎新材料有限公司
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