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A kind of environmentally friendly flame-retardant low-odor modified polypropylene and its preparation method and application

A polypropylene and low-odor technology, applied in the field of polypropylene materials, can solve the problems of poor mechanical properties, low flame retardant efficiency, and unsatisfactory performance, and achieve low smoke density, low smoke density, and good flame retardant effects

Active Publication Date: 2016-04-20
TIANJIN KINGFA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Odor and smoke density of hydroxide flame retardant are small, but its flame retardant efficiency is low, and it needs to be added in large quantities, resulting in poor mechanical properties and high density of modified polypropylene materials for vehicles, which cannot meet the requirements of school buses

Method used

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  • A kind of environmentally friendly flame-retardant low-odor modified polypropylene and its preparation method and application
  • A kind of environmentally friendly flame-retardant low-odor modified polypropylene and its preparation method and application
  • A kind of environmentally friendly flame-retardant low-odor modified polypropylene and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Preparation of environmentally friendly flame-retardant and low-odor modified polypropylene

[0034] Add 69Kg of polypropylene, 20Kg of flame retardant, and 5Kg of smoke suppressant into a low-speed mixer at 100r / min for mixing, then add 3Kg of TVOC remover for mixing, then add 3Kg of odor adsorbent and 0.6Kg of stabilizer for mixing, Added at the main feeding port of the twin-screw extruder, melted and blended, and vacuum-extruded and granulated by the extruder to obtain the special environmentally friendly flame-retardant and low-odor modified polypropylene material for school buses; the twin-screw extruder The length-to-diameter ratio is 36:1, and the processing temperature of the twin-screw extruder is 180°C.

[0035] Among them, the polypropylene used is copolymerized polypropylene, the TVOC removal agent is isopropanol, the halogen-free flame retardant is nitrogen-phosphorus flame retardant (Zhenjiang Star Flame Retardant APP), the smoke suppressant is ...

Embodiment 2

[0036] Example 2: Preparation of environmentally friendly flame-retardant and low-odor modified polypropylene

[0037] Add 40Kg polypropylene, 30Kg flame retardant, and 20Kg smoke suppressant to a low-speed mixer at 100r / min for mixing, then add 5KgTVOC remover for mixing, then add 5Kg odor adsorbent and 1.2Kg stabilizer for mixing, Added at the main feeding port of the twin-screw extruder, melted and blended, and vacuum-extruded and granulated by the extruder to obtain the special environmentally friendly flame-retardant and low-odor modified polypropylene material for school buses; the twin-screw extruder The length-to-diameter ratio is 48:1, and the processing temperature of the twin-screw extruder is 200°C.

[0038] Among them, the polypropylene used is homopolypropylene, the TVOC removal agent is ethanol, the halogen-free flame retardant is nitrogen-phosphorus flame retardant (Zhenjiang Xingxing flame retardant MPP), the smoke suppressant is aluminum hydroxide, and the od...

Embodiment 3

[0039] Example 3: Preparation of environmentally friendly flame-retardant and low-odor modified polypropylene

[0040]Add 89Kg of polypropylene, 5Kg of flame retardant, and 2Kg of smoke suppressant into a low-speed mixer at 100r / min for mixing, then add 1Kg of TVOC remover for mixing, then add 2Kg of odor adsorbent and 0.3Kg of stabilizer for mixing, Added at the main feeding port of the twin-screw extruder, melted and blended, and vacuum-extruded and granulated by the extruder to obtain the special environmentally friendly flame-retardant and low-odor modified polypropylene material for school buses; the twin-screw extruder The length-to-diameter ratio is 52:1, and the processing temperature of the twin-screw extruder is 210°C.

[0041] Among them, the polypropylene used is copolymerized polypropylene, the TVOC removal agent is isopropanol, the halogen-free flame retardant is nitrogen-phosphorus flame retardant (Kaifeng Huashun HS-NPS-D), and the smoke suppressant is aluminum...

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Abstract

The invention belongs to the technical field of polypropylene materials, and discloses environment-friendly flame retardant low-odor modified polypropylene and a preparation method and application of modified polypropylene in inner decoration of a school bus. The environment-friendly flame retardant low-odor modified polypropylene comprises the following components by weight percent: 40-90% of polypropylene, 4-30% of a flame retardant, 2-20% of an antismoke agent, 2-5% of an odor adsorbent, 1-5% of a TVOC (Total Volatile Organic Compound) remover and 0.3-1.2% of a stabilizer. According to polypropylene provided by the invention, the effect of excellent mechanical property, good flame retardant effect and low smoke density is realized by selecting a special low-odor nitrogen and phosphorus halogen-free flame retardant and metal hydroxide as the antismoke agent. The odor adsorbent and the TVOC remover are added to effectively remove TVOC and other small molecular matters, so that the modified polypropylene which satisfies the demand on excellent mechanical property, good flame retardant effect, low smoke density, low odor and low TVOC is prepared, and the modified polypropylene can be suitable for inner decoration of the school bus.

Description

technical field [0001] The invention belongs to the technical field of polypropylene materials, and in particular relates to an environmentally friendly flame-retardant low-odor modified polypropylene, a preparation method thereof, and an application in interior decoration of school buses for students. Background technique [0002] With the improvement of people's safety awareness, the requirements for the indoor air quality of automobiles are getting higher and higher. Correspondingly, the requirements for automotive interior materials are also getting higher and higher. In addition to conventional mechanics, indicators such as odor and TVOC are also raised. At present, major domestic and foreign automobile manufacturers require the odor of interior materials to be ≤3.5 (testing standard VDA270, testing condition 80°C / 2h), and TVOC≤50μgC / g. For school buses that are related to student safety, the requirements are even higher. The "Special School Bus Safety Technical Conditi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08K13/04C08K7/26C08K3/32C08K5/521C08K5/3492C08K3/22C08K5/05
CPCC08K3/22C08K3/32C08K3/346C08K5/05C08K5/34924C08K5/34928C08K7/26C08K13/04C08K2003/2224C08K2003/2227C08K2003/323C08L2201/02C08L23/14C08L23/12
Inventor 张春怀李晟李欣陶四平肖华明刘乐文钱永红
Owner TIANJIN KINGFA NEW MATERIAL
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