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Preparation method of composite material using intercalated modified kaolin to assist flame-retardant effect of polybutylene succinate

A technology of polybutylene succinate and composite materials is applied in the field of preparation of modified kaolin flame retardant polybutylene succinate, which can solve the problems of reducing the mechanical properties of resins and the like, so as to reduce the decline of mechanical properties, Low cost and the effect of improving flame retardant efficiency

Inactive Publication Date: 2017-10-10
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of flame retardant will significantly reduce the mechanical properties of the resin, and the tensile strength will drop from 27.56±0.53MPa to 20.79±0.31MPa

Method used

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  • Preparation method of composite material using intercalated modified kaolin to assist flame-retardant effect of polybutylene succinate
  • Preparation method of composite material using intercalated modified kaolin to assist flame-retardant effect of polybutylene succinate
  • Preparation method of composite material using intercalated modified kaolin to assist flame-retardant effect of polybutylene succinate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 75g of PBS resin, 20.8g of ammonium polyphosphate, and 4.2g of melamine, and dry in an oven at 60°C for 12h. Then mix in a high-speed mixer for 10 to 20 minutes, melt, blend and extrude the obtained mixture in a twin-screw extruder, control the temperature at 180°C, and rotate at 44rpm to obtain the modified kaolin synergistic flame-retardant polybutadiene butylene glycol ester composites.

[0025] The limiting oxygen index test, UL-94 vertical burning test and mechanical performance test are carried out on the standard sample.

Embodiment 2

[0027] Weigh 75g of PBS resin, 20.4g of ammonium polyphosphate, 4.1g of melamine, and 0.5g of urea-intercalated kaolin, and place them in an oven at 60°C for 12h to dry. Then mix in a high-speed mixer for 10 to 20 minutes, melt, blend and extrude the obtained mixture in a twin-screw extruder, control the temperature at 180°C, and rotate at 44rpm to obtain the modified kaolin synergistic flame-retardant polybutadiene butylene glycol ester composites.

[0028] The limiting oxygen index test, UL-94 vertical burning test and mechanical performance test are carried out on the standard sample.

Embodiment 3

[0030] Weigh 75 g of PBS resin, 19.6 g of ammonium polyphosphate, 3.9 g of melamine, and 1.5 g of urea-intercalated kaolin and place them in an oven at 60° C. for 12 hours to dry. Then mix in a high-speed mixer for 10 to 20 minutes, melt, blend and extrude the obtained mixture in a twin-screw extruder, control the temperature at 180°C, and rotate at 44rpm to obtain the modified kaolin synergistic flame-retardant polybutadiene butylene glycol ester composites.

[0031] The limiting oxygen index test, UL-94 vertical burning test and mechanical performance test are carried out on the standard sample.

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Abstract

The invention discloses a method for preparing a modified kaolin synergistic flame-retardant polybutylene succinate composite material. The composite material comprises polybutylene succinate, modified kaolin and an intumescent flame retardant. The preparation steps are: mixing kaolin and urea in a certain proportion, grinding them for a certain period of time by mechanical grinding method to prepare intercalated modified kaolin, and mixing 75wt% of polybutylene succinate Ester, 18wt% to 25wt% intumescent flame retardant (APP:Mel=5:1), 0wt% to 7wt% modified kaolin are mixed evenly, and obtained by melt blending, extrusion, granulation and drying The modified kaolin polybutylene succinate composite material with excellent flame retardancy and droplet resistance, its oxygen index can reach 40.1%, passed the V-0 level of UL-94, and its mechanical properties also have certain improve. It can be widely used in catering utensils, daily sundries, medical polymer materials, etc.

Description

technical field [0001] The invention relates to a preparation method of modified kaolin flame-retardant polybutylene succinate technical background [0002] Polybutylene succinate (PBS) is a completely biodegradable aliphatic polyester. Due to its excellent comprehensive properties, it has attracted widespread attention and has become one of the hot research materials for general-purpose biodegradable plastics that can be widely applied. , the source of its synthetic raw materials can be petroleum resources, or it can be obtained through the fermentation of biological resources. Polybutylene succinate has good processing performance, and can be made into various products through injection molding, blow molding, blister, lamination, foaming, spinning and other processes. Polybutylene succinate has good biodegradability, and it can be widely used in catering utensils, daily sundries, medical polymer materials, etc., and can also be used as toys, household appliances, daily ch...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K3/32C08K5/3492C08K9/04C08K3/34
CPCC08K3/32C08K3/346C08K5/34922C08K9/04C08L2201/02
Inventor 谷晓昱谷玲玲张胜孙军赵丽倩
Owner BEIJING UNIV OF CHEM TECH