Weather-resistant high impact polystyrene material and preparation method thereof

A polystyrene and polystyrene resin technology, applied in the field of modification and preparation of high-impact polystyrene materials, can solve the problem of affecting the service life of high-impact polystyrene materials and the gloss of high-impact polystyrene materials Reduced strength, toughness, hardness, rigid mechanical properties and other problems, to achieve the effect of maintaining color, strengthening mechanical properties, and avoiding yellowing of color

Inactive Publication Date: 2011-07-06
GUANGDONG ALDEX NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under long-term exposure to ultraviolet light, the gloss of high-impact polystyrene materials decreases significantly, and its color yellowing is very serious, and its mechanical properties such as to

Method used

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  • Weather-resistant high impact polystyrene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] The preparation method of the weather-resistant high-impact polystyrene material consists of the following steps:

[0021] a: Weigh the raw materials according to the above proportion for use;

[0022] b: Add anti-ultraviolet radiation agents, toughening agents, antioxidants and processing aids to the high-impact polystyrene resin, and dry at 60-70°C for 1.5-3 hours;

[0023] c: Put the mixture obtained in step b in a high-speed mixer at room temperature for dry mixing for 20-30 minutes;

[0024] d: Put the mixture obtained in step c in an extruder, and extrude and granulate at a temperature of 170-230°C.

[0025] Through the modification of high impact polystyrene resin, its weather resistance is improved. In the UVB test (280nm-315nm fluorescent ultraviolet lamp, irradiation intensity: 0.55W / m 2 , 120 hours), the high-impact polystyrene resin product of the present invention has no obvious discoloration, and the product color difference (ΔE) is less than 3.0.

Example Embodiment

[0027] Example 1

[0028] The weather-resistant high-impact polystyrene material of the present invention includes high-impact polystyrene resin, titanium dioxide, SBS, SEBS, ABS high rubber powder, butadiene rubber, acrylate elastomer, antioxidant 1010, and antioxidant 168 , Antioxidant 1076, Antioxidant 1098, Antioxidant DLTP, Antioxidant DLSP, Stearate, EBS, PETS, Low Molecular Polyethylene and Oxidized Polyethylene. The above components are calculated by mass fraction: 100 parts of high-impact polystyrene resin; 0.1 part of titanium dioxide; 3 parts of SBS; 3 parts of SEBS; 3 parts of ABS high rubber powder; 3 parts of butyl rubber; 3 parts of acrylic elastomer Parts; Antioxidant 1010 0.2 parts; Antioxidant 168 0.2 parts; Antioxidant 1076 0.2 parts; Antioxidant 1098 0.2 parts; Antioxidant DLTP 0.1 part; Antioxidant DLSP 0.1 part; Stearate 0.4 part; 0.4 part of EBS; 0.4 part of PETS; 0.4 part of low molecular polyethylene; 0.4 part of oxidized polyethylene. The preparation m...

Example Embodiment

[0034] Example 2

[0035] The weather-resistant high-impact polystyrene material of the present invention includes high-impact polystyrene resin, general-purpose polystyrene, titanium dioxide, hindered amine light stabilizer, benzophenone polymer, and benzotriazole polymer , Salicylate polymers, SBS, SEBS, ABS high rubber powder, butadiene rubber, acrylate elastomer, antioxidant 1010 and stearate. In terms of mass fraction, the above components are: 80 parts of high-impact polystyrene resin; 20 parts of general-purpose polystyrene; 2 parts of titanium dioxide; 2 parts of hindered amine light stabilizers; 2 parts of benzophenone polymers; Benzotriazole polymer 2 parts; salicylate polymer 2 parts; SBS 0.2 part; SEBS 0.2 part; ABS high rubber powder 0.2 part; butadiene rubber 0.2 part; acrylate elastomer 0.2 part; antioxidant 0.1 part of agent 1010; 0.1 part of stearate. The preparation method of the weather-resistant high-impact polystyrene material consists of the following step...

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Abstract

The invention discloses a weather-resistant high impact polystyrene material, which is characterized by comprising high impact polystyrene resin, an anti-ultraviolet agent, a toughener, an antioxidant, and a processing aid, and comprising the following components in part by mass: 80 to 100 parts of high impact polystyrene resin, 0 to 20 parts of general purpose polystyrene, 0.1 to 10 parts of light stabilizer, 1 to 15 parts of toughener, 0.1 to 1 part of antioxidant and 0.1 to 2 parts of processing aid. The weather-resistant high impact polystyrene material has high weather resistance and stable performance.

Description

technical field [0001] The invention relates to the modification and preparation of a high-impact polystyrene material, in particular to a weather-resistant high-impact polystyrene material and a preparation method thereof. Background technique [0002] High-impact polystyrene materials have excellent toughness, hardness, and rigidity balanced mechanical properties. At the same time, they have good dimensional stability, surface gloss, low temperature resistance, colorability, and processing fluidity. Styrene materials are widely used in engineering fields such as electrical appliances, automobiles, and machinery. However, high-impact polystyrene contains unsaturated C=C double bonds of polybutadiene chain members, and the C=C double bonds are very sensitive to ultraviolet light. The mechanism is that ultraviolet light first attacks the C=C double bond in the polybutene chain segment, oxidizes and breaks the polybutene chain segment, and then generates carbonyl and hydroxyl...

Claims

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Application Information

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IPC IPC(8): C08L51/04C08L25/06C08K13/02B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92923
Inventor 筱璘阮小良桑杰严星桓杨华军李白羽黄恒圳
Owner GUANGDONG ALDEX NEW MATERIAL CO LTD
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