Hyperbranched polyester copolymer, spraying-free polycarbonate fiber-added composite material and preparation method thereof

A technology of hyperbranched polyester and polycarbonate, which is applied in the field of spray-free polycarbonate plus fiber composite materials and its preparation, and hyperbranched polyester copolymer, which can solve the problem of comprehensive mechanical properties, temperature resistance and chemical resistance, and surface The surface of the floating fiber has poor scratch resistance and cannot improve the surface floating fiber, etc., to achieve the effect of enhancing the comprehensive mechanical properties and chemical resistance, excellent mechanical properties, and excellent heat resistance

A technology of hyperbranched polyester and polycarbonate, which is applied in the field of spray-free polycarbonate plus fiber composite materials and its preparation, and hyperbranched polyester copolymer, which can solve the problem of comprehensive mechanical properties, temperature resistance and chemical resistance, and surface The surface of the floating fiber has poor scratch resistance and cannot improve the surface floating fiber, etc., to achieve the effect of enhancing the comprehensive mechanical properties and chemical resistance, excellent mechanical properties, and excellent heat resistance

CN111978491AInactive Publication Date: 2020-11-24SINOPLAST NEW MATERIAL
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  • Hyperbranched polyester copolymer, spraying-free polycarbonate fiber-added composite material and preparation method thereof
  • Hyperbranched polyester copolymer, spraying-free polycarbonate fiber-added composite material and preparation method thereof
  • Hyperbranched polyester copolymer, spraying-free polycarbonate fiber-added composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] This embodiment provides a spray-free polycarbonate fiber-reinforced composite material, which is prepared from the following components by weight percentage:

[0066]

[0067] The preparation method of the above-mentioned spray-free polycarbonate fiber-added composite material is as follows:

[0068] Mix the polycarbonate, hyperbranched polyester copolymer, toughening agent S-2001, antioxidant B900, lubricant OP wax and anti-UV agent UV-234, mix the mixed material from the main feeding port Add it into a twin-screw extruder, and add the glass fiber at the side feed port of the twin-screw extruder, melt and blend, and obtain the spray-free polycarbonate fiber-reinforced composite material after extrusion; The process parameters of the twin-screw extruder are as follows: the temperature of the first zone is 200°C, the temperature of the second zone is 270°C, the temperature of the third zone is 280°C, the temperature of the fourth zone is 280°C, the temperature of the...

Embodiment 2

[0070] This embodiment provides a spray-free polycarbonate fiber-reinforced composite material, which is prepared from the following components by weight percentage:

[0071]

[0072] The preparation method of the above-mentioned spray-free polycarbonate fiber-added composite material is as follows:

[0073] Mix the polycarbonate, hyperbranched polyester copolymer, toughening agent S-2001, antioxidant B900, lubricant OP wax and anti-UV agent UV-234, mix the mixed material from the main feeding port Add it into a twin-screw extruder, and add the glass fiber at the side feed port of the twin-screw extruder, melt and blend, and obtain the spray-free polycarbonate fiber-reinforced composite material after extrusion; The process parameters of the twin-screw extruder are as follows: the temperature of the first zone is 200°C, the temperature of the second zone is 270°C, the temperature of the third zone is 280°C, the temperature of the fourth zone is 280°C, the temperature of the...

Embodiment 3

[0075] This embodiment provides a spray-free polycarbonate fiber-reinforced composite material, which is prepared from the following components by weight percentage:

[0076]

[0077]

[0078] The preparation method of the above-mentioned spray-free polycarbonate fiber-added composite material is as follows:

[0079] Mix the polycarbonate, hyperbranched polyester copolymer, toughening agent S-2001, antioxidant B900, lubricant OP wax and anti-UV agent UV-234, mix the mixed material from the main feeding port Add it into a twin-screw extruder, and add the glass fiber at the side feed port of the twin-screw extruder, melt and blend, and obtain the spray-free polycarbonate fiber-reinforced composite material after extrusion; The process parameters of the twin-screw extruder are as follows: the temperature of the first zone is 200°C, the temperature of the second zone is 270°C, the temperature of the third zone is 280°C, the temperature of the fourth zone is 280°C, the temper...

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Abstract

The invention provides a hyperbranched polyester copolymer, a spraying-free polycarbonate fiber-added composite material and a preparation method thereof. The hyperbranched polyester copolymer is obtained by copolymerizing carboxyl-containing hyperbranched polyester acrylate and glycidyl methacrylate; and the carboxyl-containing hyperbranched polyester acrylate is obtained by modifying hyperbranched polyester with succinic anhydride, hexamethylene diisocyanate and hydroxyethyl acrylate. The spraying-free polycarbonate fiber-added composite material is prepared from the following raw materialsin percentage by weight: 57-80% of polycarbonate, 10-30% of glass fiber, 0.2-1% of hyperbranched polyester copolymer, 5-10% of toughener, 0.1-0.5% of antioxidant, 0.5-1.5% of lubricant and 0.1-0.5% ofanti-UV (ultraviolet) agent. The spraying-free polycarbonate fiber-added composite material has the advantages of low surface floating fiber, high gloss and favorable scratch resistance, and has favorable mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, in particular to a hyperbranched polyester copolymer, a spray-free polycarbonate fiber-added composite material and a preparation method thereof. Background technique [0002] Glass fiber reinforced polycarbonate composites are widely used in mobile phones, tablets, notebooks and other electronic products due to their good toughness, rigidity and chemical resistance. Usually, after injection molding of glass fiber reinforced polycarbonate composite materials, the plastic on the surface of the part is sprayed or electroplated to make up for the lack of floating fibers and easy scratches on the surface of the product. In recent years, with the introduction of spray-free materials, compared with traditional plastic materials, spray-free materials have rich colors, good surface gloss, good chemical resistance, good surface scratch resistance, more environmental protection, lower c...

Claims

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Application Information

Patent Timeline
24 Nov 2020
Publication
CN111978491A
IPC
C08F290/06; C08F220/32; C08G63/91; C08G63/06; C08L69/00; C08L51/08; C08K7/14; C08J5/10
CPC
C08F290/061; C08G63/912; C08G63/06; C08J5/10; C08J5/043; C08J2369/00; C08J2451/08; C08K7/14
Inventors
朱怀才; 谢平