A kind of filled pc composition

A composition and mixture technology, which is applied in the field of filled PC compositions, can solve problems such as uneven dispersion, affecting material properties, and high rigidity of molecular chains, and achieve the effect of enhancing interface bonding and improving comprehensive performance

Active Publication Date: 2019-05-03
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PC is a thermoplastic engineering plastic with excellent physical and mechanical properties. It has excellent transparency and flame retardancy, and has a wide range of applications; It is very easy to stress cracking. At the same time, the application of plastic parts is becoming thinner and thinner, and the rigidity requirements of the material are also getting higher and higher. Usually, the modulus of the material is increased by adding fillers, but what follows is The uneven dispersion and aggregation of fillers in the system will seriously affect the performance of materials. This is an urgent problem to be solved for filling PC

Method used

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  • A kind of filled pc composition
  • A kind of filled pc composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Put 85 parts of PC, 2 parts of acrylic acid, 3 parts of butyl acrylate, 10 parts of talc, 0.01 parts of DCP, 1 part of zinc oxide, 0.2 parts of antioxidant, and 0.5 parts of lubricant into a high-speed mixer and mix them for 3 minutes. Put the raw materials into the twin-screw extruder, the length-to-diameter ratio of the twin-screw extruder is 48:1, and control the temperature of each zone of the twin-screw extruder at 200-300°C, then extrude and granulate to get filled PC composition.

Embodiment 2

[0032] Put 70 parts of PC, 3 parts of acrylic acid, 7 parts of butyl acrylate, 20 parts of talc, 0.02 parts of DCP, 2 parts of zinc oxide, 0.2 parts of antioxidant, and 0.5 parts of lubricant into a high-speed mixer and mix them for 3 minutes. Put the raw materials into the twin-screw extruder, the length-to-diameter ratio of the twin-screw extruder is 48:1, and control the temperature of each zone of the twin-screw extruder at 200-300°C, then extrude and granulate to get filled PC composition.

Embodiment 3

[0034] Put 55 parts of PC, 4 parts of acrylic acid, 9 parts of butyl acrylate, 30 parts of talc, 0.03 parts of DCP, 4 parts of zinc oxide, 0.2 parts of antioxidant, and 0.5 parts of lubricant into a high-speed mixer and mix them for 3 minutes. Put the raw materials into the twin-screw extruder, the length-to-diameter ratio of the twin-screw extruder is 48:1, and control the temperature of each zone of the twin-screw extruder at 200-300°C, then extrude and granulate to get filled PC composition.

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Abstract

The invention provides a novel filling PC (polycarbonate) composition. The novel filling PC composition is prepared from the following raw materials in parts by weight: 45 to 90 parts of PC resin, 5 to 40 parts of inorganic filler, 3 to 15 parts of acrylic acid and / or acrylic ester, 0.5 to 5 parts of metal oxide, 0.02 to 0.5 part of crosslinker, and 0.1 to 2 parts of additive. The novel filling PC composition has the advantages that for the carboxyl structure in the acrylic acid and / or acrylic ester molecular structure, the carboxyl in the molecular structure can easily react with the metal oxide to generate carboxylate; the metal ions which are uniformly dispersed in a polymer can easily interact with polarity groups at the surface of the inorganic filler, so as to enhance the interface bonding force between the inorganic filler and PC.

Description

technical field [0001] The invention belongs to the technical field of polymer modification, and in particular relates to a filled PC composition. Background technique [0002] PC is a thermoplastic engineering plastic with excellent physical and mechanical properties. It has excellent transparency and flame retardancy, and has a wide range of applications; It is very easy to stress cracking. At the same time, the application of plastic parts is becoming thinner and thinner, and the rigidity requirements of the material are also getting higher and higher. Usually, the modulus of the material is increased by adding fillers, but what follows is The uneven dispersion and aggregation of fillers in the system will seriously affect the performance of materials. This is an urgent problem to be solved for filling PC. [0003] In the present invention, it is found in research that the in-situ polymerization of acrylic acid and acrylic acid ester in the twin-screw, and the reaction w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/02C08F220/06C08F220/18C08K13/02C08K3/34C08K3/22C08K5/14
CPCC08F283/02C08K3/22C08K3/34C08K5/14C08K13/02C08K2003/2296C08F220/1804
Inventor 陈勇文李明昆佟伟艾军伟何继辉岑茵张现军陶四平
Owner TIANJIN KINGFA NEW MATERIAL
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