Flexible hydrophilic polystyrene foam material and preparation method thereof

A technology of polystyrene foaming and polystyrene, which is applied in the field of flexible and hydrophilic polystyrene foaming materials and its preparation, can solve the problems of casting and penetration into the interior of open-cell foam, insufficient flexibility, etc., and achieve good Hydrophilic performance, good flexibility effect

Inactive Publication Date: 2019-08-16
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem that in the current application of polystyrene foam trays, the blood water exuded from the raw meat placed on the tray cannot flow uniformly at the bottom of the tray and penetrate into the interior of the open-cell foam, and the current polystyrene foam trays have insufficient flexibility , prepared a flexible and hydrophilic polystyrene foam material, further developed the product grade of foam plastic tray, and the product has remarkable flexibility and hydrophilicity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: the preparation of flexible hydrophilic polystyrene foam material

[0015] (1) 8.7 kilograms of polystyrene particles were first added to a 165°C internal mixer with a rotating speed of 65 rpm, then 0.8 kilograms of SBS thermoplastic elastomer was added, and melt blended for 3 minutes;

[0016] (2) Add 0.5 kg of montmorillonite to the mixture of (1), melt and blend for 6 minutes, take out the material from the mixer, cool to room temperature and pulverize into particles;

[0017] (3) The product in (2) is extruded and foamed at 180 ° C, using butane as a physical foaming agent and injected into the extruder, and melted with polystyrene foam material in the extruder to form a uniform After the solution is extruded through the die, the pressure is suddenly released at the die, foamed, cooled, shaped and drawn to obtain a polystyrene foam sheet.

[0018] Cut the foam board into long strips, grasp the two ends with hands, and quickly fold them in half at 180°...

Embodiment 2

[0019] Embodiment 2: the preparation of flexible hydrophilic polystyrene foam material

[0020] 8.9 kg polystyrene; 0.6 kg SBS thermoplastic elastomer; 0.5 kg soluble starch. The rest is the same as implementation 1.

[0021] Cut the foam board into long strips, grasp the two ends with hands, and quickly fold them in half at 180°. The sample is not brittle; after testing, its contact angle with water is 36°.

Embodiment 3

[0022] Embodiment 3: the preparation of flexible hydrophilic polystyrene foam material

[0023] 9.2 kg polystyrene; 0.5 kg SBS thermoplastic elastomer; 0.3 kg montmorillonite. The rest is the same as implementation 1.

[0024] Cut the foam board into long strips, hold both ends with hands, and quickly fold them in half at 180°, the sample is not brittle; after testing, its contact angle with water is 45°.

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PUM

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Abstract

The invention provides a flexible hydrophilic polystyrene foam material and a preparation method thereof. The material comprises the following components in parts by weight: 87-92 parts of polystyrene, 5-8 parts of an SBS thermoplastic elastomer and 3-5 parts of water absorption material. The water absorption material is one or more of montmorillonite, soluble starch and polyvinyl alcohol. The preparation method comprises the following steps: (1) uniformly mixing polystyrene and an SBS thermoplastic elastomer in a high-temperature mixer; and (2) adding a water absorption material, uniformly mixing all the components, taking out the material from the mixer, cooling the material to room temperature, and crushing the material. After the polystyrene foam material is extruded and foamed, the product of the polystyrene foam material has flexibility and hydrophilic performance.

Description

technical field [0001] The invention relates to a flexible and hydrophilic polystyrene foam material and a preparation method thereof, in particular to a polystyrene foam material with flexibility and hydrophilicity obtained by regulating the components of a multiphase system The preparation method belongs to the preparation and performance research of plastic foam materials. Background technique [0002] Foam plastic is a kind of polymer material formed by dispersing a large number of gas micropores in solid plastic. It has the characteristics of light weight, heat insulation, sound absorption, shock absorption, etc., and its dielectric performance is better than that of matrix resin. It has a wide range of uses. Almost any kind of plastic can be made into foam. The structure of the cells has a significant impact on the performance of foamed plastics. In general, closed-cell foamed plastics have higher mechanical strength and low water absorption; while open-celled foamed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L53/02C08L3/02C08L29/04C08K3/34C08J9/14
CPCC08J9/0061C08J9/0066C08J9/141C08J2203/14C08J2325/06C08J2403/02C08J2429/04C08J2453/02C08K3/346
Inventor 王兆波时玉娇李嘉豪
Owner QINGDAO UNIV OF SCI & TECH
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