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Halogen-free heat-insulating ablation-resistant flame-retardant polypropylene material as well as preparation and application thereof

A flame-retardant polypropylene and ablation-resistant technology, which is applied in the field of halogen-free heat-insulating and ablation-resistant flame-retardant polypropylene materials and their preparation and application, can solve the problems of low smoke density and fewer types of halogen-free polyolefin materials, etc. Achieve improved burn-through resistance, high flame retardancy, and low density

Pending Publication Date: 2022-04-19
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Research on polyolefin materials with high flame retardancy, ablation resistance, and low smoke density is currently a hot spot, but in general, halogen-free polyolefins with high flame retardancy, ablation resistance, excellent heat insulation, and low smoke density fewer types of materials

Method used

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  • Halogen-free heat-insulating ablation-resistant flame-retardant polypropylene material as well as preparation and application thereof
  • Halogen-free heat-insulating ablation-resistant flame-retardant polypropylene material as well as preparation and application thereof
  • Halogen-free heat-insulating ablation-resistant flame-retardant polypropylene material as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0088] Example 1-8 Halogen-free, heat-insulating, ablation-resistant, and flame-retardant polypropylene material

[0089] 1. Raw materials

[0090] The components and dosages of the halogen-free heat-insulating, ablation-resistant and flame-retardant polypropylene materials of Examples 1-8 are shown in Tables 1 and 2.

[0091] Table 1

[0092]

[0093]

[0094] Table 2

[0095]

[0096] 2. Preparation of Examples 1-8 Halogen-free, heat-insulating, ablation-resistant, and flame-retardant polypropylene materials

[0097] (1) According to the dosage in Table 1 and Table 2, each component except the long glass fiber masterbatch is proportioned, and then mixed in a high-speed mixer for 2 minutes;

[0098] (2) The mixed mixture is melt-blended by a twin-screw extruder, and the components are mixed evenly by screw shearing and kneading, and then granulated and dried to obtain the first masterbatch; the first masterbatch The granules and long glass fiber masterbatches are...

experiment example 1

[0109] The halogen-free heat-insulating and ablation-resistant flame-retardant polypropylene materials prepared in Examples 1-8 and the polypropylene materials of Comparative Examples 1-10 were respectively tested for UL94 flame-retardant grade, burn-through time, backside temperature, maximum smoke density level, expansion Rate test, the test results are shown in Table 5.

[0110] table 5

[0111]

[0112]

[0113] From the results in Table 5, it can be seen that the halogen-free heat-insulating and ablation-resistant flame-retardant polypropylene materials prepared in Examples 1 to 8 of the present invention can achieve ablation-resistant polypropylene materials while maintaining high flame-retardant properties of polypropylene materials. The performance is greatly improved and the smoke density level is lower. The burn-through resistance time of the material reaches 137-210s; the temperature on the back of the material is as low as 134-162°C, the maximum smoke density...

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Abstract

The invention provides a halogen-free heat-insulating ablation-resistant flame-retardant polypropylene material as well as preparation and application thereof. The halogen-free heat-insulating ablation-resistant flame-retardant polypropylene material is prepared from the following components in parts by weight: 30 to 75 parts of polypropylene, 15 to 25 parts of piperazine salt, 5 to 15 parts of inorganic phosphide, 0.5 to 2 parts of synergistic flame retardant, 10 to 30 parts of long glass fiber master batch, 5 to 10 parts of ceramic forming filler, 3 to 6 parts of fluxing agent and 0.3 to 1.5 parts of other auxiliaries. According to the halogen-free heat-insulating ablation-resistant flame-retardant polypropylene material, the long glass fiber master batch and the ceramic forming filler are added into a halogen-free flame-retardant system, and the fluxing agent is added, so that the flame-retardant, heat-insulating and burn-through-resistant properties of the material are effectively improved, and the smoke density grade and the expansion rate of the material are reduced.

Description

technical field [0001] The invention belongs to the technical field of polymer materials. More specifically, it relates to a halogen-free heat-insulating, ablation-resistant and flame-retardant polypropylene material and its preparation and application. Background technique [0002] Ablation-resistant materials are mainly base materials such as epoxy resin, phenolic resin, EPDM rubber and silicone rubber, and are mainly used in military industry, aerospace field and wire and cable. Ablation-resistant polyolefin materials are mainly concentrated in EVA, PE and their copolymers, and are mostly used in fire-resistant cables. As people pay more and more attention to the fire-proof performance of materials, the flame-retardant performance requirements for commonly used electronic and electrical housing materials Higher and higher, especially for high-risk components such as flammable electric control boxes of electrical equipment. At present, the base materials of electric cont...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L53/00C08K7/14C08K5/3462C08K5/3492C08K3/36C08K3/22C08K3/34C08K3/40C08K3/38
CPCC08K7/14C08K5/3462C08K5/34928C08K3/36C08K3/22C08K3/34C08K3/346C08K3/40C08K3/38C08L2201/02C08L2201/22C08L2203/20C08K2003/2296C08L53/00C08L23/12
Inventor 姜向新陈平绪叶南飚杨霄云陆湛泉丁明笃
Owner KINGFA SCI & TECH CO LTD