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
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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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