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Brightening lubricant auxiliary agent used for engineering plastics

A technology of lubricating additives and engineering plastics, applied in the field of additives, can solve the problems of rough surface of glass fiber reinforced nylon, poor finish of high-filling PP, etc., and achieve the effect of improving gloss, increasing melt index, and reducing current

Active Publication Date: 2014-04-30
苏州兴泰国光化学助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is also a major problem in the field of modified engineering plastics, such as rough surface of glass fiber reinforced nylon, poor finish of highly filled PP, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Bright lubricating additives for engineering plastics, which is special in that: each component contained and the weight percentage of each component are 75% stearic acid, 15% polyethylene polyamine, 1% antioxidant, 2% graft, 0.1% initiator.

[0015] Further, in order to comply with the preparation of commonly used PA66, the type of stearic acid is stearic acid with a C16 content greater than 97%. Polyethylene polyamine is imported high-purity polyethylene polyamine. Meanwhile, the antioxidant is a mixture of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol and tris(2.4-di-tert-butylphenyl)phosphite.

[0016] At the same time, considering the effect of final molding, the graft is reagent type glycidyl methacrylate, and the initiator is reagent type dicumyl peroxide.

[0017] Its preparation process is roughly as follows: first put stearic acid and 1% antioxidant into the reaction kettle and fully melt it, then add polyethylene polyamine dropwis...

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PUM

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Abstract

The invention relates to a brightening lubricant auxiliary agent used for engineering plastics. The brightening lubricant auxiliary agent is characterized in that all contained components and the weight percentage of each component are as follows: 75-80% of stearic acid, 15-20% of polyethylene polyamine, 1 % of an anti-oxidant, 2-3% of a grafted polymer and 0.1% of an initiator. Therefore, by using the auxiliary agent in engineering plastics such as glass fiber reinforced and modified PA6, PA66, PBT and PET, current and torque when materials are made can be reduced; and melt indexes of the materials can be increased. For products injected after granulation, phenomenon that the glass fibers are exposed from the product surfaces can be effectively prevented; and glossiness of the product surfaces can be improved. The auxiliary agent has no significant influence on mechanical properties of the products, and especially has a certain improvement for toughness of the materials.

Description

technical field [0001] The invention relates to an auxiliary agent, in particular to a bright lubricating auxiliary agent for engineering plastics. Background technique [0002] Among the modified engineering plastics, the most widely used and the most used are glass fiber reinforced, flame retardant reinforced and filled modified composite materials, such as glass fiber reinforced PA6 and PA66, flame retardant reinforced PBT, filled PP and so on. These modified engineering plastics are widely used in auto parts, home appliances, electronics, communications, computers and other equipment components due to their excellent mechanical properties, electrical insulation, chemical resistance, weather resistance, and easy processing. [0003] With the rapid development of the national economy, my country's demand for new chemical materials has entered a period of rapid growth, and the quality requirements for products have also reached a new height. The requirements for engineerin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/32C08K5/20C08K5/134C08K5/526C08L77/02C08L77/06C08L67/02C08L33/14
Inventor 孙寅
Owner 苏州兴泰国光化学助剂有限公司