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Transparent low-temperature-resistant scuffing-resistant polycarbonate composite material

A technology of polycarbonate and composite materials, which is applied in the field of transparent low-temperature-resistant and scratch-resistant polycarbonate composite materials and its preparation, to achieve good mechanical properties, increase surface tension, and good impact performance at room temperature and low temperature

Active Publication Date: 2017-04-26
SHANGHAI CHANGWEI JINCI ENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report about a kind of transparent low-temperature-resistant and scratch-resistant polycarbonate composite material and its preparation method.

Method used

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  • Transparent low-temperature-resistant scuffing-resistant polycarbonate composite material
  • Transparent low-temperature-resistant scuffing-resistant polycarbonate composite material
  • Transparent low-temperature-resistant scuffing-resistant polycarbonate composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] With the following components in parts by weight (1 part=100g): 637 parts of models are 2805 PC, 300 parts of siloxane copolymerized PC, 50 parts of nano anti-scratch masterbatches, 2 parts of antioxidant 168, 1 part Antioxidant 1076, 5 parts of pentaerythritol stearate, 2 parts of light stabilizer 770, 2 parts of ultraviolet absorber UV-234 and 1 part of toner are mixed in a high-mixer for 2 to 3 minutes, and then mixed at 260 to 280 ° C Twin-screw extrusion granulation, the obtained pellets are dried at 120°C for 4 hours and then injection molded into standard strips at 260-280°C.

Embodiment 2

[0035] The following components in parts by weight (1 part=100g): 537 parts of models are 2805 PC, 300 parts of siloxane copolymerized PC, 100 parts of surface hardness improving agent H881, 50 parts of nano anti-scratch masterbatch, 2 Mix 1 part of antioxidant 168, 1 part of antioxidant 1076, 5 parts of pentaerythritol stearate, 2 parts of light stabilizer 770, 2 parts of ultraviolet absorber UV-234 and 1 part of toner in a high mixer for 2 to 3 minutes , and then twin-screw extrusion granulation at 260-280°C, the resulting pellets were dried at 120°C for 4 hours and then injection-molded into standard strips at 260-280°C.

Embodiment 3

[0037] The following components in parts by weight (1 part=100g): 507 parts of PC model 2805, 300 parts of siloxane copolymerized PC, 100 parts of surface hardness improving agent H881, 30 parts of silicone toughening agent S2030, 50 parts of nano anti-scratch masterbatch, 2 parts of antioxidant 168, 1 part of antioxidant 1076, 5 parts of pentaerythritol stearate, 2 parts of light stabilized 770, 2 parts of ultraviolet absorber UV-234 and 1 part of toner Mix in a high mixer for 2-3 minutes, then twin-screw extrusion pelletization at 260-280°C, dry the obtained pellets at 120°C for 4 hours, and then inject them into standard strips at 260-280°C.

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Abstract

The invention relates to the field of polymer composite materials, in particular to a transparent low-temperature-resistant scuffing-resistant polycarbonate composite material. The polycarbonate composite material is prepared from, by weight, 300-800 parts of bisphenol A polycarbonate resin, 100-500 parts of siloxane copolymerized PC resin, 10-50 parts of organosilicone flexibilizer, 50-200 parts of surface hardness improving agent, 10-100 parts of nanometer scuffing-resistant master batch and 5-15 parts of additive. The siloxane copolymerized PC, the surface hardness improving agent and the nanometer scuffing-resistant master batch are composited for use, on the basis that the luminousness and the basic mechanical properties of PC are uninfluenced, the surface hardness and the low-temperature properties of the material are improved, the surface hardness can be increased to 2 H, the abrasion resistance of the surface of a product is obviously improved, and the surface glossiness and the weather resistance are also improved. Moreover, the surface tension of the product can be increased, and the product is easier to clean; the composite material is good in mechanical property, high temperature impact property and low temperature impact property.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a transparent low-temperature-resistant and scratch-resistant polycarbonate composite material and a preparation method thereof. Background technique [0002] Polycarbonate is a plastic with good transparency. It has excellent comprehensive properties and is widely used. Its products are widely used in electronic appliances, automobiles, machinery manufacturing, computers and other technical fields. [0003] However, the surface scratch resistance of polycarbonate material is poor, which greatly reduces the aesthetics of the product, and the scratches on the surface of the product will also lead to stress concentration. Usually used PC material products, in order to protect the appearance , generally to do coating treatment. In order to improve the scratch resistance of polycarbonate, there are patent reports to modify it by adding PMMA, carbon fiber, glass fiber, woll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L83/10C08K13/02C08K3/36C08K5/526C08K5/134C08K5/103C08K5/3435C08K5/3475
CPCC08K2201/011C08L69/00C08L2201/10C08L83/10C08K13/02C08K3/36C08K5/526C08K5/1345C08K5/103C08K5/3435C08K5/3475
Inventor 朱爱华张毅张龙赵志刚李盛科
Owner SHANGHAI CHANGWEI JINCI ENG PLASTIC
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