A method of preparing a high-performance wood plastic composite by utilization of waste polystyrene
A technology of wood-plastic composite materials and waste polystyrene, which is applied in the field of wood-plastic composite materials, can solve the problems of unsatisfactory flame retardancy, low impact strength, and limited application range, etc., and achieve uniform and continuous stress distribution at the phase interface, Strong interface binding force and good mixing effect
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[0017] Example 1
[0018] The present invention proposes a method for preparing high-performance wood-plastic composite material by using waste polystyrene, including the following steps:
[0019] S1. Dry 50 parts of corn stalks by weight at 90°C for 3h, crush them and pass through a 200-mesh sieve, then add 20 parts of 20% hydrochloric acid by mass, soak at 35°C for 60 minutes, and then add 3 parts of silane coupling Coupling agent KH-550 and 5 parts of N,N-bishydroxyethyl alkyl amide, stir for 50 min, wash and dry to obtain modified corn stover;
[0020] S2. Add waste polystyrene foam plastic into a pulverizer and pulverize to a diameter of 0.5-1 cm to obtain pretreated polystyrene;
[0021] S3. 30 parts of modified corn stalks, 5 parts of nano titanium dioxide, 5 parts of molybdenum disulfide, 2 parts of nano aluminum hydroxide, 10 parts of nano zinc stannate, 0.5 parts of silane coupling agent KH-560, 1.5 parts by weight Silane coupling agent KH-570, 0.1 part foaming agent, 12 pa...
Example Embodiment
[0023] Example 2
[0024] The present invention proposes a method for preparing high-performance wood-plastic composite material by using waste polystyrene, including the following steps:
[0025] S1. 30 parts by weight of corn stalks are dried at 100℃ for 2h, crushed and passed through a 200-mesh sieve, then added 35 parts of 10% hydrochloric acid by mass, soaked at 50℃ for 30min, and then added 5 parts of silane couple Coupling agent KH-550 and 1 part of N,N-bishydroxyethyl alkyl amide, stir for 100 min, wash and dry to obtain modified corn stover;
[0026] S2. Add waste polystyrene foam plastic into a pulverizer and pulverize to a diameter of 0.5-1 cm to obtain pretreated polystyrene;
[0027] S3. According to parts by weight, 10 parts of modified corn stalks, 20 parts of nano titanium dioxide, 1 part of molybdenum disulfide, 10 parts of nano aluminum hydroxide, 2 parts of nano zinc stannate, 2 parts of silane coupling agent KH-560, 0.5 parts Silane coupling agent KH-570, 1 part f...
Example Embodiment
[0029] Example 3
[0030] The present invention proposes a method for preparing high-performance wood-plastic composite material by using waste polystyrene, including the following steps:
[0031] S1. Dry 38 parts of corn stalks by weight at 98°C for 2.2h. After crushing, pass through a 200-mesh sieve, then add 33 parts of 13% hydrochloric acid by mass, soak at 46°C for 40 minutes, and then add 4.3 parts of silane Coupling agent KH-550 and 3.2 parts of N,N-bishydroxyethyl alkylamide, stirred for 75 min, washed and dried to obtain modified corn stover;
[0032] S2. Add waste polystyrene foam plastic into a pulverizer and pulverize to a diameter of 0.5-1 cm to obtain pretreated polystyrene;
[0033] S3. 18 parts of modified corn stalks, 16 parts of nano titanium dioxide, 3.2 parts of molybdenum disulfide, 8 parts of nano aluminum hydroxide, 5 parts of nano zinc stannate, 1 part of silane coupling agent KH-560, 1.2 parts by weight Silane coupling agent KH-570, 0.5 parts foaming agent, 1...
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