Pretreatment method of wood flour suitable for plastic filling
A treatment method and pretreatment technology, which is applied in the field of wood powder pretreatment, can solve the problems of unfavorable environmental protection, waste liquid pollution, etc., and achieve the effect of improving crystallinity and good mechanical properties
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[0019] Example 1
[0020] Using 80 mesh poplar wood powder, provided by Zhejiang Lin’an Mingzhu Bamboo Wood Powder Co., Ltd.; PP, provided by Sinopec Shanghai Chemical Co., Ltd., grade T300, MFI=3g / 10min (2.16KG / 230℃), the PP stretch Strength is 31MPa, bending strength is 31MPa, impact strength is 9KJ / m 2 . Directly use an electric kettle to boil the wood flour, add wood flour and water according to the mass ratio of wood flour to water 1:8, stir until the wood flour sinks to the bottom of the pot and start heating. After the water boils, boil for 10 minutes, stop heating and filter while hot, and treat the wood flour filter cake in a vacuum oven for 12 hours, and the vacuum degree of the oven is 0.09-0.1MPa. After the treatment, open the oven door to dry the wood flour to a constant weight, and then sieving through 80 meshes for treatment.
[0021] The treated wood powder 30phr and PP 70phr and processing aids were added to the HAAKE rheometer to melt and blend for 15 minutes, t...
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[0022] Example 2
[0023] Use 80 mesh poplar wood powder, provided by Zhejiang Lin’an Mingzhu Bamboo Wood Powder Co., Ltd.; PP, provided by Sinopec Shanghai Chemical Co., Ltd., grade T300; PP-g-mah, provided by Nanjing Deba Chemical Co., Ltd., grafting rate approximately 1%. Use an electric kettle to boil the wood flour, add wood flour and water according to the mass ratio of wood flour to water 1:10, stir until the wood flour sinks to the bottom of the pot and start heating. After the water boils, boil for 10 minutes, stop heating and filter while it is hot, and use a vacuum oven for sauna treatment for 12 hours on the wood flour filter cake. The vacuum degree of the oven is 0.09-0.1MPa. After the treatment, open the oven door to dry the wood flour to a constant weight, and then sieving through 80 meshes for treatment.
[0024] Add 30phr of wood powder and 70phr of PP and 5phr of PP-g-mah to the HAAKE rheometer for 15 min, 60 rpm, and blending temperature of 180°C. The composite...
Example Embodiment
[0025] Example 3
[0026] Use 80 mesh poplar wood powder, provided by Zhejiang Lin’an Mingzhu Bamboo Wood Powder Co., Ltd.; PP, provided by Sinopec Shanghai Chemical Co., Ltd., grade T300; PP-g-mah, provided by Nanjing Deba Chemical Co., Ltd., grafting rate approximately 1%. Use an electric kettle to boil the wood flour, add wood flour and water according to the mass ratio of wood flour to water 1:10, boil for 15 minutes after the water is boiling, stop heating and filter while it is hot, and use the wood flour filter cake in a vacuum oven for sauna After processing for 12 hours, the vacuum degree of the oven is 0.09-0.1MPa. After the treatment, open the oven door to dry the wood flour to a constant weight, and then sieving through 80 meshes for treatment.
[0027] The treated wood powder 60phr, PP 40phr and 5phr PP-g-mah were added to the HAAKE rheometer and melted and blended for 15 min, at a speed of 60 rpm, and a blending temperature of 180°C; a 25-ton flat vulcanizer was use...
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