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Thermoplastic elastomer-silicone resin composite material and preparation method thereof

A technology of thermoplastic elastomers and composite materials, applied in the field of thermoplastic elastomers, can solve the problems of low efficiency, high cost, and unrecyclable scraps, etc., and achieve the effect of high efficiency and good physical properties

Active Publication Date: 2021-12-21
SHANGHAI M&G STATIONERY INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silicone rubber molding needs to be vulcanized, and its efficiency is low; it is a thermosetting material, and the scraps cannot be recycled; the cost is high

Method used

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  • Thermoplastic elastomer-silicone resin composite material and preparation method thereof
  • Thermoplastic elastomer-silicone resin composite material and preparation method thereof
  • Thermoplastic elastomer-silicone resin composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 25 parts of high molecular weight (weight average about 300,000) SEBS (G1651H), 50 parts of white oil (60N), 3 parts of silicone resin (phenyl vinyl silicone oil, viscosity 10000CPS), PP [copolymerized PP-1100NK, MI: 10 -15g / 10min (230°C / 2.16kg)] 15 parts, POE [8402, its MI: 30g / 10min (190°C / 2.16kg)] 5 parts, antioxidant (phosphorus antioxidant 168) 0.3 part, 2 parts of compatibilizer (1901). Silicone resin (silicone oil) + white oil, mix evenly at a weight ratio of 1:2, add white oil and the aforementioned mixture to SEBS, stir for 3-5 minutes; then add PP, POE and antioxidant, stir for 5-8 minutes, After mixing evenly, melt extruding through a twin-screw extruder at 185-220° C., and then granulate to obtain the thermoplastic elastomer-silicone resin composite material. The specific formula is shown in Table 1.

Embodiment 2

[0046] 28 parts of SEBS (G1651H) with high molecular weight (average weight about 300,000), 45 parts of white oil (60N), 4 parts of silicone resin (phenyl vinyl silicone oil), 6 parts of PP (1100NK), 15 parts of POE (8402) , 0.3 parts of antioxidant (168); 2 parts of compatibilizer (1901). Silicone resin (silicone oil) + white oil, mix evenly at a weight ratio of 1:2, add white oil and the aforementioned mixture to SEBS, stir for 3-5 minutes; then add PP, POE, compatibilizer and antioxidant, stir for 5 minutes -8 minutes, after mixing evenly, melt extruding through a twin-screw extruder at 185-220° C., and then granulate to obtain the thermoplastic elastomer-silicone resin composite material. The specific formula is shown in Table 1.

Embodiment 3

[0048] 30 parts of SEBS (G1651H) with high molecular weight (average weight about 300,000), 44 parts of white oil (60N), 5 parts of silicone resin (phenyl vinyl silicone oil), 8 parts of PP (1100NK), 11 parts of POE (8402) , 0.3 parts of antioxidant (168); 2 parts of compatibilizer (1901). Silicone resin (silicone oil) + white oil, mix evenly at a weight ratio of 1:2, add white oil and the aforementioned mixture to SEBS, stir for 3-5 minutes; then add PP, POE, compatibilizer and antioxidant, stir for 5 minutes -8 minutes, after mixing evenly, melt extruding through a twin-screw extruder at 185-220° C., and then granulate to obtain the thermoplastic elastomer-silicone resin composite material. The specific formula is shown in Table 1.

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Abstract

The invention provides a thermoplastic elastomer-silicon resin composite material and a preparation method thereof. The components of the thermoplastic elastomer-silicon resin composite material include: by weight, 25-35 parts of SEBS, 40-50 parts of white oil, 5-15 parts of PP, 5-15 parts of POE, 3-6 parts of silicone resin, 0-2 parts of compatibilizer and 0-0.3 parts of additives. The thermoplastic elastomer-silicone resin composite material uses SEBS as the substrate and silicone resin as the lubricant. It has good physical properties and processing properties, and has the elasticity and smoothness of silicone; it is used in stationery, toys, etc. at room temperature The product field used makes the product have the appearance and touch of silicone rubber, and can be produced by injection molding or extrusion with high efficiency.

Description

technical field [0001] The invention relates to the field of thermoplastic elastomers, and relates to a thermoplastic elastomer (Thermoplastic Elastomer) and silicone resin composite material and a preparation method thereof. Background technique [0002] Silicone rubber molding needs vulcanization, and its efficiency is low; it is a thermosetting material, and the scraps cannot be recycled; the cost is high. The hardness, flexibility and resilience of traditional thermoplastic elastomers are comparable to those of silicone rubber, but the dryness of the surface is quite different from that of silicone rubber. Insufficient resistance, its mechanical properties are close to those of silicone rubber, its resilience, appearance and touch are also similar, and there are many molding methods, such as injection molding, extrusion or casting, which can effectively improve production efficiency; at the same time, it belongs to thermoplastic materials, which have heating The charact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L91/06C08L53/02C08L23/12C08L23/08C08L83/07
CPCC08L91/06C08L2205/035C08L53/025C08L23/12C08L23/0815C08L83/04
Inventor 李玉虎王通虎植石昆罗炜
Owner SHANGHAI M&G STATIONERY INC
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