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Modified PTFE anti-dripping agent and preparation method thereof

An anti-drip agent and modification technology, which is applied in the field of engineering plastic flame retardant materials to achieve the effect of easy operation and avoiding fibrillation at room temperature

Inactive Publication Date: 2019-11-05
NANJING TIANSHI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problems existing in the prior art, and provides a modified PTFE anti-dripping agent and its preparation method. The technical solution aims to overcome the problems existing in the current coated and emulsion-type anti-dripping agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: a kind of preparation method of modified PTFE anti-dripping agent, concrete steps are as follows:

[0022] Step 1, take by weighing 85g PTFE resin, manufacturer is Shandong Dongyue, model is DF202; Take by weighing pentaerythritol tetrastearate PETS 15g, manufacturer is American Lonza, model is Glycolube P, pulverizes to The average particle size is below 10um, and it is fully mixed with PTFE resin.

[0023] Step 2, transfer the above mixture to an oven, bake at 85°C for 1 hour, cool naturally to room temperature and take it out to obtain the modified PTFE anti-dripping agent.

Embodiment 2

[0024] Embodiment 2: a kind of preparation method of modified PTFE anti-dripping agent, concrete steps are as follows:

[0025] Step 1: Weigh 90g of PTFE resin, the manufacturer is Shandong Dongyue, the model is DF202; weigh 10g of montan wax, the manufacturer is Clariant, the model is Licowax E, and pulverize it to an average particle size of less than 10um through a jet mill , and fully mixed with PTFE resin.

[0026] Step 2: Transfer the above mixture to an oven, bake at 100°C for 30 minutes, cool naturally to room temperature and take it out to obtain the modified PTFE anti-dripping agent.

Embodiment 3

[0027] Embodiment 3: a kind of preparation method of modified PTFE anti-dripping agent, concrete steps are as follows:

[0028] Step 1, weigh 80g of PTFE resin, the manufacturer is Shandong Dongyue, the model is DF202; weigh 20g of ethylene bisstearamide, the manufacturer is Lonza, the model is ACRAWAX C Atomized, the average particle size of this product is about 6um , and fully mixed with PTFE resin.

[0029] Step 2: transfer the above mixture to an oven, bake at 160° C. for 1 hour, cool to room temperature and take it out to obtain a modified PTFE anti-dripping agent.

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PUM

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Abstract

The invention relates to a modified PTFE anti-dripping agent. The anti-dripping agent comprises, by weight, 50-90 parts of PTFE resin and 10-50 parts of a lubricant, wherein the lubricant is one or acombination of montan wax, pentaerythritol tetrastearate and ethylene bis-stearamide. The PTFE resin and the micron-sized lubricant can be sufficiently mixed, the mixture is heated, the lubricant is melted and adsorbed by the PTFE resin, and the fiber-forming property of the PTFE resin at normal temperature is greatly reduced after cooling, so that fibration is not likely to happen during transportation, storage and mixing of polytetrafluoroethylene resin, and the polytetrafluoroethylene resin can be uniformly dispersed in engineering plastics.

Description

technical field [0001] The invention relates to a preparation method, in particular to a modified PTFE anti-dripping agent and a preparation method thereof, belonging to the technical field of engineering plastic flame retardant materials. Background technique [0002] Polytetrafluoroethylene with a molecular weight of about 4 million to 5 million is mainly used in anti-dripping agents in the field of engineering plastics. PTFE resin is added to the formulation of thermoplastic engineering plastics, and under certain conditions, it can be effectively dispersed into a fibrous network structure, which can resist dripping and help thermoplastic materials meet higher flame retardant standards. Anti-dripping agents are mainly used in plastic materials that require flame retardants to reach V0 level, which can prevent melting and dripping and improve flame retardant performance. When reducing the amount of flame retardants, they can also meet the requirements of ULV-0, while reduc...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08L91/06C08K5/103C08K5/20C08L69/00C08L55/02C08L51/04C08K5/50
CPCC08K5/103C08K5/20C08K2201/003C08L27/18C08L69/00C08L91/06C08L2201/02C08L2205/035C08L55/02C08L51/04C08K5/50
Inventor 郑晓平于海阔于天诗
Owner NANJING TIANSHI NEW MATERIAL TECH
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