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Nitrogen-phosphorus-silicon ternary halogen-free synergistic flame-retardant thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer, synergistic flame retardant technology, applied in the field of thermoplastic elastomer and its preparation, can solve the problems of complex processing process and difficult large-scale industrialization

Pending Publication Date: 2022-01-21
绍兴市聚成新材料科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the whole process is complicated and difficult to be industrialized on a large scale

Method used

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  • Nitrogen-phosphorus-silicon ternary halogen-free synergistic flame-retardant thermoplastic elastomer and preparation method thereof
  • Nitrogen-phosphorus-silicon ternary halogen-free synergistic flame-retardant thermoplastic elastomer and preparation method thereof
  • Nitrogen-phosphorus-silicon ternary halogen-free synergistic flame-retardant thermoplastic elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Phosphorous and nitrogen-containing tetrafunctional acrylate prepared with hydroxyethyl acrylate, block styrene copolymer, extender oil, polypropylene, maleic anhydride grafted styrene block copolymer, silicone polyurethane block copolymer , thermoplastic polyurethane, lubricant, stabilizer, silicone masterbatch and other components were mixed in a high-speed mixer for 30 minutes according to the following weight ratio, mixed evenly, and then mixed in a low-speed mixer for 20 minutes, and the evenly mixed material was fed by a metering feeder Put it into a twin-screw extruder, set the temperature at 170°C-200°C, set the speed of the host at 320rpm / min, and set the frequency of the feeder at 28Hz. The mixed raw materials are obtained through high-temperature shearing, melting, plasticizing, mixing, and water ring cutting of a twin-screw extruder. The specific components are as follows:

[0051]

Embodiment 2

[0053] Granulate according to the manufacturing process in Example 1 and the following raw material weight ratio.

[0054]

Embodiment 3

[0056]

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Abstract

The invention discloses a nitrogen-phosphorus-silicon ternary halogen-free synergistic flame-retardant thermoplastic elastomer and a preparation method thereof. The thermoplastic elastomer specifically comprises, by weight, 2-20 parts of phosphorus-nitrogen-containing tetrafunctional acrylate, 10-45 parts of a styrene block copolymer, 20-60 parts of filling oil, 5-20 parts of polypropylene, 5-10 parts of a maleic anhydride grafted styrene block copolymer, 0.1-2 parts of a stabilizer, 20-40 parts of thermoplastic polyurethane, 10-30 parts of an organic silicon and polyurethane segmented copolymer, and 1-5 parts of a silicone master batch. The preparation method comprises the following steps: weighing the raw materials in proportion, then mixing the raw materials in a high-speed stirrer, then putting the mixture into a double-screw extruder, performing melt extrusion, and after extrusion, cooling, drying and pelletizing to obtain the finished product. The thermoplastic elastomer with excellent flame retardance is prepared by adopting nitrogen-phosphorus-silicon ternary halogen-free synergistic flame retardance, and the mechanical property and smoothness of the material are not sacrificed while the flame retardance of the material is greatly improved. The flame-retardant thermoplastic elastomer is suitable for being applied to the fields of automobile parts, sealing strips, wires and cables, medical apparatuses and instruments and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer synthesis, modification and processing, and in particular relates to a nitrogen-phosphorus-silicon ternary halogen-free synergistic flame-retardant thermoplastic elastomer and a preparation method thereof. Background technique [0002] Thermoplastic elastomer is referred to as TPE / TPR, also known as artificial rubber or synthetic rubber. Its products have the excellent properties of traditional cross-linked vulcanized rubber such as high elasticity and aging resistance at room temperature, and can be plasticized and formed at high temperature, and have the characteristics of more convenient and wide processing methods for ordinary plastics. It can be produced by injection molding, extrusion, blow molding and other processing methods. After the corners of the nozzle are crushed, 100% can be used directly for secondary use, and there is no unpleasant smell during processing. It is a new type of envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L75/04C08L83/04C08L23/12C08L91/00C08L53/02C08K5/098
CPCC08L51/006C08L2201/02C08L2207/04C08L2203/202C08L75/04C08L83/04C08L23/12C08L91/00C08L53/025C08K5/098
Inventor 杨建江杨雄发盛萌张洪云
Owner 绍兴市聚成新材料科技股份有限公司
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