Novel high-efficiency flame-retardant weather-resistant master batch and preparation method thereof

A weather-resistant masterbatch and high-efficiency technology, applied in the field of polymer material additives, can solve problems such as side reactions, product performance impact, and defects, and achieve the effect of improving performance and good dispersion

Inactive Publication Date: 2019-10-08
宿迁联宏新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the research based on flame retardant and weather resistance is still limited to materials and additives, and there are few researches on flame retardant-weather resistant composite masterbatches, and some adverse side reactions will occur when different additives are added together during processing, which will affect the product. big impact on performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a novel high-efficiency flame-retardant and weather-resistant masterbatch, the specific steps are as follows:

[0027] (1) Raw materials and the ratio of each component:

[0028] category Sample name Amount added carrier resin Polypropylene 78wt% flame retardant app 16wt% HALS HALS-944 0.4wt% UV absorber UV-531 0.3wt% antioxidant B215 0.3wt% Processing aids Stearic acid, acid absorbent, thermal processing stabilizer 5wt%

[0029] Accurately weigh the raw materials according to the raw materials and the ratio of each component given above. 5% of processing aids of the present invention, including 1 wt% of acid absorbent, 1 wt% of stearic acid, 3 wt% of other thermal processing aids and thermal stabilizers.

[0030] (2) Processing technology

[0031] 1) Mix the flame retardant and processing aid at 20-40rpm / min for 2-3min at 25°C;

[0032] 2) Add anti-light aging additives and ...

Embodiment 2

[0035] Sample performance testing:

[0036] The masterbatch that embodiment 1 generates is passed through twin-screw extruder together with polypropylene resin at 200 o C extrusion granulation, the added masterbatch is 5% of the total mass of the flame retardant polypropylene material, and the resulting particles are placed at 80 o Dry in C drying box for 3-5h, take out the standard color plate and the 1.6mm flame retardancy test sample of injection molding, and make the standard sample in 25 o C, stored at 50% humidity for 24 hours, as a sample for testing.

[0037] Xenon lamp aging: Expose the sample to a xenon lamp aging test chamber for aging test (irradiance 0.55W / ㎡ / nm @340nm, black mark temperature 60°C±3°C, 18min condensation, 102min light), and compare it after 500h aging Product surface and color difference changes before and after aging.

[0038] ΔE: color difference (according to DIN6174)

[0039] The results show that the surface of the product containing the f...

Embodiment 3

[0041] Sample performance testing

[0042] According to Example 1, injection mold the dried sample and pure polypropylene resin into a standard dumbbell-shaped sample, store it at constant temperature and humidity for 24 hours, take it out and put it in a xenon lamp aging box for 500 hours of aging, take it out after aging, and place it at constant temperature and humidity for 24 hours , to test its maximum force retention rate.

[0043] Xenon lamp aging: Expose the sample to a xenon lamp aging test box for aging test (irradiance 0.55W / ㎡ / nm @340nm, black mark temperature 60°C±3°C, 18min condensation, 102min light), and compare it after 500h aging Changes in the surface of the product and the maximum force retention rate before and after aging.

[0044] Tensile test: according to GB / T 1040.5-2006

[0045] The product containing the flame-retardant-weather-resistant masterbatch of the present invention has a retention rate of 97% after 500h xenon lamp aging, while the retentio...

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Abstract

The invention relates to a novel high-efficiency flame-retardant weather-resistant master batch and a preparation method thereof. The master batch comprise the following components: carrier resin, a flame retardant, an anti-light aging additive, an antioxidant and a processing additive, wherein the carrier resin accounts for 8-75% of the total mass of the master batch, the mass ratio of the anti-light aging additive to the flame retardant is 1: 2-30, the mass ratio of the antioxidant to the anti-light aging additive is 1: 6-30, and the addition amount of the processing additive accounts for 0.5-5% of the total mass. The invention discloses the novel high-efficiency flame-retardant weather-resistant master batch and the preparation method thereof, which can endow an auxiliary agent with multifunctionality by means of a very small amount of acid absorbent, lubricant and processing stabilizer, and thus double effects of flame retardance and weather resistance are achieved without damagingthe basic properties of resin, and the effects of safety, environmental protection and no harm to human bodies are achieved.

Description

technical field [0001] The invention relates to a novel high-efficiency flame-retardant and weather-resistant masterbatch and a preparation method thereof, belonging to the field of polymer material additives. Background technique [0002] With the development of the economy and the acceleration of urban modernization, the application fields of polymer materials continue to expand, but most of the polymer materials are hydrocarbon structures, which are flammable and combustible materials, and release a lot of heat when they burn. The flame spreads quickly and is difficult to extinguish. In recent years, the production capacity of the global flame retardant material industry has increased year by year, and countries have successively improved their regulations on flame retardant materials, putting forward higher requirements for the flame retardancy of polymer materials. Therefore, the development of new flame retardants with excellent performance, better effect and more env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K3/32C08K5/132C08J3/22
CPCC08J3/226C08J2323/12C08J2423/12C08K2003/323C08K5/132
Inventor 吕巧莲张超宋波刘旭谢胜利项瞻峰
Owner 宿迁联宏新材料有限公司
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