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Halogen-free phosphate-free flame-retardant master batch for polycarbonate (PC) engineering plastic

A technology of engineering plastics and polycarbonate, which is applied in the field of flame retardant masterbatch, can solve the problems of easy corrosion of phosphorus flame retardants, leakage of toxic substances, secondary pollution, etc., and achieve good thermal stability and flame retardant efficiency High, little effect on the mechanical properties of the material

Inactive Publication Date: 2015-06-03
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, although phosphorus-based flame retardants have the characteristics of low toxicity, durability, low price, and good thermal stability, they are easy to corrode molds and reduce polymer processing performance, and toxic substances are easy to seep out of plastics. , causing secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A halogen-free and phosphorus-free flame-retardant masterbatch for polycarbonate engineering plastics, the components of which are: 75% PC resin, 5% potassium benzenesulfonylbenzenesulfonate (KSS), polydimethylsiloxane Oxane (PDMS) 10%, polyvinylidene fluoride (PVDF) 5%, phenyl glycidyl ether 4%, PETS 1%. Wherein, the described PC resin is polycarbonate, and its specific gravity is 1.18~1.20g / cm 3 , The molding shrinkage rate is 0.5% to 0.8%.

[0013] Preparation method: Weigh each component according to the weight ratio, and add them into a high-speed mixer and stir thoroughly for 3 to 15 minutes, then discharge the material into a twin-screw extruder, melt, knead and extrude at 270°C to 290°C out, cooled and granulated, dried and packaged to obtain the finished product.

Embodiment 2

[0015] A halogen-free and phosphorus-free flame-retardant masterbatch for polycarbonate engineering plastics, the components of which are: 85% PC resin, 2% potassium benzenesulfonylbenzenesulfonate (KSS), polydimethylsilane Oxane (PDMS) 5%, polyvinylidene fluoride (PVDF) 4%, bisphenol A diglycidyl ether 3%, TAS-2A 1%. Wherein, the described PC resin is polycarbonate, and its specific gravity is 1.18~1.20g / cm 3 , The molding shrinkage rate is 0.5% to 0.8%.

[0016] Preparation method: Weigh each component according to the weight ratio, and add them into a high-speed mixer and stir thoroughly for 3 to 15 minutes, then discharge the material into a twin-screw extruder, melt, knead and extrude at 270°C to 290°C out, cooled and granulated, dried and packaged to obtain the finished product.

Embodiment 3

[0018] A halogen-free and phosphorus-free flame-retardant masterbatch for polycarbonate engineering plastics, the components of which are: 62% PC resin, 10% potassium benzenesulfonylbenzenesulfonate (KSS), polydimethylsiloxane Oxane (PDMS) 15%, polyvinylidene fluoride (PVDF) 5%, 2-oxazoline 5%, EVA wax 3%. Wherein, the described PC resin is polycarbonate, and its specific gravity is 1.18~1.20g / cm 3 , The molding shrinkage rate is 0.5% to 0.8%.

[0019] Preparation method: Weigh each component according to the weight ratio, and add them into a high-speed mixer and stir thoroughly for 3 to 15 minutes, then discharge the material into a twin-screw extruder, melt, knead and extrude at 270°C to 290°C out, cooled and granulated, dried and packaged to obtain the finished product.

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Abstract

The invention discloses a halogen-free phosphate-free flame-retardant master batch for polycarbonate (PC) engineering plastic, which is composed of the following components in percentage by mass: 60-85% of PC resin, 2-10% of potassium benzenesulfonyl benzenesulfonate (KSS), 10-15% of polydimethylsiloxane (PDMS), 4-6% of polyvinylidene fluoride (PVDF), 3-5% of hydrolysis resisting agent and 1-3% of lubricant. Compared with the prior art, the flame-retardant master batch has the halogen-free phosphate-free green environment-friendly flame-retardant effect when being used for flame-retardancy modification of the PC engineering plastic, has the advantages of high flame-retardant efficiency (can reach the flame retardancy Grade UL94V-0 by adding 1-3%), favorable heat stability, excellent dispersity, low influence on mechanical properties of the material and the like, and is convenient to use.

Description

technical field [0001] The invention relates to a flame-retardant master batch, in particular to a halogen-free and phosphorus-free flame-retardant master batch for polycarbonate engineering plastics. Background technique [0002] Polycarbonate (PC) is a widely used engineering plastic first industrialized by German Bayer Company in 1958, and its output currently ranks second in engineering plastics. PC is a non-toxic, odorless, colorless and transparent material with high light transmittance, high refractive index, excellent mechanical properties, good heat resistance, flame resistance and insulation, and its products are stable in size. It is widely used in Mechanical, electrical and electronic, medical equipment and optical lighting and other fields. PC itself has a certain flame retardancy (oxygen index is 21% to 24%), but in TVs, computers, transformer coils, auto parts, building materials and other applications with high flame retardancy requirements, the flame retard...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L83/04C08L27/16C08K5/42C08J3/22
CPCC08L69/00C08L2201/02C08L2201/08C08L2201/22C08L2205/03
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE