Charging pile CTI high glow wire PBT composite material and preparation method thereof

A high-glow wire and composite material technology, applied in the field of polymer material modification, can solve the problems of harsh process requirements, plastic particles are easy to turn gray, and restrictions, and achieve simple production process, simple and controllable production process, and reduce production cost effect

Inactive Publication Date: 2016-11-09
深圳市高科塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After foreign Klein company developed the halogen-free flame retardant OP1240, it became possible to produce PBT reinforced materials that can meet both high tracking index and high glow wire non-ignition. However, the cost of synthesizing the halogen-free flame retardant OP1240 is high. Moreover, the process requirements for the enhanced PBT products using OP1240 to produce halogen-free flame retardants are very strict. If you are not careful, the plastic particles will easily turn gray. Clean up in time, halogen-free flame retardants are also easy to carbonize and turn gray
Therefore, the use of halogen-free flame retardant OP1240 to enhance the use of PBT materials in low-voltage electrical products has been restricted

Method used

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  • Charging pile CTI high glow wire PBT composite material and preparation method thereof
  • Charging pile CTI high glow wire PBT composite material and preparation method thereof
  • Charging pile CTI high glow wire PBT composite material and preparation method thereof

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preparation example Construction

[0045] The preparation method of the charging pile CTI high glow wire PBT composite material comprises the following steps:

[0046] Step 1: Weigh 34.3-69.4 parts of PBT resin, 10-20 parts of flame retardant, 3-10 parts of flame-retardant synergist, 2-4 parts of toughening agent, 0.3-1 part of heat stabilizer, 0.3-0.7 parts of lubricant, 15-30 parts of glass fiber;

[0047]Step 2: Mix PBT resin, flame retardant, flame retardant synergist, toughening agent, heat stabilizer and lubricant in a medium speed mixer for 3-7 minutes;

[0048] Step 3: Then mix the raw materials mixed in step 2 with glass fibers to form a compound, melt and extrude through a twin-screw extruder, and granulate; the process conditions of the twin-screw extruder are: the first zone of the twin-screw extruder The temperature is 180-240°C, the temperature in the second zone is 180-240°C, the temperature in the third zone is 180-240°C, the temperature in the fourth zone is 180-220°C, the temperature in the f...

preparation Embodiment 1

[0050] Select the following raw materials in parts by weight: 34.3 parts of PBT resin (1100-211M), 0.3 part of heat stabilizer (GX2921), 3 parts of toughening agent (E516), 0.3 part of lubricant (TAF), 18 parts of flame retardant ( It consists of 12 parts of decabromodiphenylethane (RDT-3), 3 parts of triphenyl phosphate (WSFR-TPP), 3 parts of melamine phosphate (MPP-A), 3 parts of flame retardant synergist (composed of three 1 part of antimony oxide, 2 parts of zinc borate);

[0051] Mix in a medium-speed mixer for 5 minutes, then blend with 15 parts of 988A glass fiber, extrude through a twin-screw extruder with a melting temperature of 180-220°C, and granulate. Among them, the temperature setting of each section of the twin-screw extruder is: 180°C in the first zone, 220°C in the second zone, 220°C in the third zone, 210°C in the fourth zone, 210°C in the fifth zone, 200°C in the sixth zone, and 200°C in the seventh zone. for 30 seconds.

preparation Embodiment 2

[0053] Select the following raw materials in parts by weight: 48.2 parts of PBT resin (1100-211M), 0.5 part of heat stabilizer (GX2921), 2 parts of toughening agent (E516), 0.4 part of lubricant (TAF), 18 parts of flame retardant ( It consists of 12 parts of decabromodiphenylethane (RDT-3), 3 parts of triphenyl phosphate (WSFR-TPP), 3 parts of melamine phosphate (MPP-A), 10 parts of flame retardant synergist (composed of three 4 parts antimony oxide, 6 parts zinc borate);

[0054] Mix in a medium-speed mixer for 5 minutes, then blend with 25 parts of 988A glass fiber, extrude through a twin-screw extruder with a melting temperature of 180-220°C, and granulate. Among them, the temperature setting of each section of the twin-screw extruder is: 180°C in the first zone, 220°C in the second zone, 220°C in the third zone, 210°C in the fourth zone, 210°C in the fifth zone, 200°C in the sixth zone, and 200°C in the seventh zone. for 30 seconds.

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Abstract

A charging pile CTI high glow wire PBT composite material consists of the following components in parts by weight: 34.3-69.4 parts of PBT resin, 10-20 parts of a fire retardant, 3-10 parts of a flame-resistant synergist, 2-4 parts of a flexibilizer, 0.3-1 part of a heat stabilizer, 0.3-0.7 part of a lubricating agent and 15-30 parts of glass fibers. The charging pile CTI high glow wire PBT composite material is provided by the invention, directing at the use limitations that tracking is formed on an existing flame-resistant PBT electronic equipment product under voltage of 250 V or above, and a glow wire at the temperature of 850 DEG C ignites easily.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, and the modified PBT composite material is mainly used in unattended charging piles and low-voltage electronic and electrical products. Background technique [0002] The EU International Electrotechnical Commission (IEC) flame retardant test evaluation method --- Glow wire flame retardant test standard (IEC60695) has attracted more and more attention in daily life. In the household appliance safety standard IEC60335, it is required: long-term unattended electrical appliances The flame retardancy of the plastic products used must meet the UL94V0 level and the ignition temperature of the glow wire reaches 750 ° C. The glow wire does not ignite within 30 seconds of contacting the material or the burning time is ≤ 2 seconds. [0003] Generally speaking, the relative tracking index (Comparative Tracking Index, CTI) and glow wire non-ignition temperature of flame-retardant reinfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/06C08K13/02C08K5/03C08K5/523C08K5/3492C08K3/22C08K3/38B29C47/92B29C48/92
CPCC08L67/02B29C48/92B29C2948/92704C08K2201/003C08L2201/02C08L2201/08C08L2203/20C08L51/06C08K13/02C08K5/03C08K5/523C08K5/34928C08K3/2279C08K2003/387
Inventor 苏健新苏志军占光平李小波陈军
Owner 深圳市高科塑化有限公司
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