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Preparation method and product of abs/pvdf alloy by self-assembly in situ

A self-assembly and alloying technology, applied in the field of polymer alloys, can solve problems such as ineffective effects, and achieve the effects of convenient and simple implementation, reduced interfacial tension, and excellent solvent resistance

Active Publication Date: 2021-03-23
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lu Tongjian of Liaoning University modified ABS by grafting maleic anhydride to ABS. Although the mechanical properties have been improved, the effect of the improvement is not obvious.

Method used

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  • Preparation method and product of abs/pvdf alloy by self-assembly in situ
  • Preparation method and product of abs/pvdf alloy by self-assembly in situ
  • Preparation method and product of abs/pvdf alloy by self-assembly in situ

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] After drying polyvinylidene fluoride, styrene-acrylonitrile-butadiene terpolymer, and styrene-acrylonitrile-glycidyl methacrylate terpolymer in a vacuum oven at 80 °C for 24 hours, according to benzene The mass ratio of ethylene-acrylonitrile-butadiene terpolymer, polyvinylidene fluoride, styrene-acrylonitrile-glycidyl methacrylate terpolymer, and polymethyl methacrylate oligomer is 80: The ratio of 20:6:0.6 is mixed at room temperature and then added to the internal mixer. The temperature of the internal mixer is 210°C, the set speed is 50rpm, and the mixing time is 10min.

[0025] The above mixed samples were injected into a micro-injection molding machine (injection cylinder temperature 230°C, mold temperature 80°C) to obtain dumbbell-shaped splines and impact splines, and the impact splines were made into notches. The experimental results are shown in Table 1.

Embodiment 2

[0027] Its operation is the same as above-mentioned embodiment 1, difference is, wherein styrene-acrylonitrile-butadiene terpolymer, polyvinylidene fluoride, styrene-acrylonitrile-glycidyl methacrylate terpolymer, The mass ratio of polymethyl methacrylate oligomers was 80:20:6:1.8, and the mixed samples were prepared according to the same operation method as in Example 1. The test results are shown in Table 1.

Embodiment 3

[0029] After drying polyvinylidene fluoride, styrene-acrylonitrile-butadiene terpolymer, and styrene-acrylonitrile-glycidyl methacrylate terpolymer in a vacuum oven at 80 °C for 24 hours, according to benzene The mass ratio of ethylene-acrylonitrile-butadiene terpolymer, polyvinylidene fluoride, styrene-acrylonitrile-glycidyl methacrylate terpolymer, and polymethyl methacrylate oligomer is 90: The ratio of 5:3:2 is mixed at room temperature and then added to the internal mixer. The temperature of the internal mixer is 200°C, the set speed is 100rpm, and the mixing time is 10min.

[0030] The above mixed samples were injected into a micro-injection molding machine (injection cylinder temperature 230°C, mold temperature 80°C) to obtain dumbbell-shaped splines and impact splines, and the impact splines were made into notches.

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Abstract

The invention discloses an in-situ self-assembly method for preparing ABS / PVDF alloy and a product thereof. Because the ABS and PVDF are completely incompatible systems of thermodynamics with poor interfacial adhesion force, so that the performance thereof is influenced, and the material has no practical value. In the invention, a graft polymer is generated in situ by using a melt blending method,and is applied to an ABS / PVDF system as a compatibilizer, so that the prepared compatibilizer can effectively compatibilize the ABS and the PVDF, enhance interfacial adhesion force, and improve the mechanical property of the ABS / PVDF alloy material. The in-situ self-assembly method for preparing ABS / PVDF alloy and product thereof has the advantages that: 1) the mechanical property of the alloy material added with the compatibilizer is greatly improved; 2) self-cleaning function through the addition of PVDF is achieved to solve the problem that the ABS is easy to get dirty and not resistant tooil; 3) the preparative equipment is a common melt blending equipment with simple industrial preparation, and easy achievement of the process.

Description

technical field [0001] The invention relates to the field of polymer alloys, in particular to a method for preparing an ABS / PVDF alloy by in-situ self-assembly and a product thereof. Background technique [0002] Styrene-acrylonitrile-butadiene terpolymer (ABS) is a commonly used engineering plastic, which organically unifies the various properties of styrene, acrylonitrile and butadiene, and is tough, hard, Excellent mechanical properties of rigid phase equilibrium, a terpolymer composed of acrylonitrile, butadiene and styrene, A represents acrylonitrile, B represents butadiene, S represents styrene, and the ratio of the three components is adjusted to obtain different properties. Butadiene acts as rubber particles and has a lower glass transition temperature to provide low-temperature ductility and impact resistance for ABS resin; acrylonitrile provides hardness and heat resistance for ABS resin; styrene provides hardness and processing flow for ABS resin properties and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08L27/16C08L25/14C08L33/12
CPCC08L55/02C08L2205/035C08L2205/08C08L27/16C08L25/14C08L33/12
Inventor 李勇进魏斌陈德培
Owner HANGZHOU NORMAL UNIVERSITY
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