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Impact-resistant polystyrene material and preparation method thereof

A polystyrene and impact-resistant technology, applied in the field of impact-resistant polystyrene materials and their preparation, can solve the problems of poor toughness, no wear resistance, low mechanical strength, etc., and achieve the effect of large tensile strength and flexural modulus

Pending Publication Date: 2021-10-15
广东粤化新材料技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary polystyrene materials have many shortcomings. General-purpose polystyrene is hard and brittle, has low mechanical strength, is not wear-resistant, and has poor toughness. These shortcomings greatly limit the application range of polystyrene.

Method used

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  • Impact-resistant polystyrene material and preparation method thereof
  • Impact-resistant polystyrene material and preparation method thereof
  • Impact-resistant polystyrene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh the following raw materials:

[0022] Polystyrene 56kg;

[0023] Covalent carbon nanotubes 14kg;

[0024] 18kg of copolymers of styrene grafted maleic anhydride;

[0025] Graft modifier 8kg;

[0026] Cyclic oil & stearate 2kg;

[0027] Antioxidant 2kg.

[0028] Mix polystyrene, covalent carbon nanotubes, styrene-grafted maleic anhydride copolymers, graft modifiers and antioxidants uniformly in parts by weight, and put them in a drying oven for drying for 20-30 minutes , the temperature in the drying oven is 75-85°C to obtain the dried mixed material, then put the dried mixed material into the reaction kettle to carry out cross-linking and grafting reaction at a temperature of 210-230°C for 15-30min, and then Extrude and granulate through twin-screw extruder, control extrusion temperature to 220-240°C, screw speed to 200-500r / min, vacuum degree to -0.06-0.08MPa, and carry out water-cut granulation after extrusion. The high-impact polystyrene material of Examp...

Embodiment 9

[0043] Weigh the following raw materials:

[0044] Polystyrene 56kg;

[0045] Covalent carbon nanotubes 14kg;

[0046] 18kg of copolymers of styrene grafted maleic anhydride;

[0047] Cyclic oil & stearate 2kg;

[0048] Antioxidant 2kg.

[0049] After the copolymer of polystyrene, covalent carbon nanotubes, styrene-grafted maleic anhydride and antioxidant are uniformly mixed by weight, put them into a drying box and dry them for 20-30min, the drying box The internal temperature is 75-85°C, and the dried mixed material is obtained, and then the dried mixed material is put into the reactor at a temperature of 210-230°C for cross-linking and branching reaction for 15-30min, and then passed through a twin-screw extruder Extrusion granulation, control the extrusion temperature to 220-240°C, the screw speed to 200-500r / min, the vacuum degree to -0.06-0.08MPa, and carry out water-cutting after extrusion to obtain the impact-resistant polymer of Example 9. Styrene material.

[0...

Embodiment 17

[0065] Weigh the following raw materials:

[0066] Polystyrene 56kg;

[0067] 18kg of copolymers of styrene grafted maleic anhydride;

[0068] Graft modifier 8kg;

[0069] Cyclic oil & stearate 2kg;

[0070] Antioxidant 2kg.

[0071] Mix polystyrene, covalent carbon nanotubes, styrene-grafted maleic anhydride copolymers, graft modifiers and antioxidants uniformly in parts by weight, and put them in a drying oven for drying for 20-30 minutes , the temperature in the drying oven is 75-85°C to obtain the dried mixed material, then put the dried mixed material into the reaction kettle to carry out cross-linking and grafting reaction at a temperature of 210-230°C for 15-30min, and then Extrude and granulate through twin-screw extruder, control extrusion temperature to 220-240°C, screw speed to 200-500r / min, vacuum degree to -0.06-0.08MPa, and carry out water-cut granulation after extrusion. The polystyrene material of Example 17.

[0072] The formula of embodiment 17-24 is as...

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Abstract

The invention provides an impact-resistant polystyrene material. The impact-resistant polystyrene material comprises the raw materials: polystyrene, covalent carbon nanotubes, a styrene grafted maleic anhydride copolymer, a grafting modifier and an antioxidant. According to the invention, the grafting modifier and the covalent carbon nanotubes are mixed together to modify the polystyrene resin to have existing characteristics, and the grafting modifier and the covalent carbon nanotubes are used for forming the composite toughening agent, so that the material not only keeps high tensile strength and flexural modulus, but also has obvious comprehensive advantages.

Description

technical field [0001] The invention belongs to the technical field of resin material preparation, in particular to an impact-resistant polystyrene material and a preparation method thereof. Background technique [0002] Polystyrene is obtained by bulk polymerization of monomer styrene and is the third largest plastic variety in the world. Polystyrene is colorless, tasteless, odorless, smooth surface, high transparency, low water absorption, strong water resistance, low thermal conductivity and heat capacity. Polystyrene is one of the most widely used polymeric resins. Because of the above advantages, polystyrene films, sheets, and foamed plastics are widely used. Traditional polystyrene products have extremely high transparency, light transmittance can reach more than 90%, good electrical insulation performance, easy coloring, good processing fluidity, good rigidity, good chemical corrosion resistance, and low price. However, ordinary polystyrene materials have many short...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L23/32C08K9/04C08K3/04
CPCC08L25/06C08L23/32C08K9/04C08K3/041
Inventor 孙小波汪德瑜
Owner 广东粤化新材料技术开发有限公司
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