A kind of preparation method of ultra-tough bio-based polyurethane composite material
A composite material and bio-based technology, which is applied in the field of preparation of super-tough bio-based polyurethane composite materials, can solve the problems that restrict the development of polyurethane polymer material industry, achieve good biodegradability, reduce environmental protection costs, and broaden the effect of raw material sources
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[0030] Example 1. A preparation method of a super-tough bio-based polyurethane composite material, carried out according to the following steps:
[0031] a. Raw material preparation: modify the purified waste oil with peracetic acid and ethylene glycol in sequence to obtain alcoholized oil;
[0032] The purification of waste oil is as follows: the recovered waste oil is sequentially suction filtered, pickled, washed with water, alkali washed, salt washed and activated carbon to remove water;
[0033] The modification of the purified waste oil is as follows: use excessive peroxyacetic acid and ethylene glycol to modify under catalyst conditions; wherein, the catalyst is: the weight accounts for 1% to 10% of the weight of the purified waste oil (most preferably 5%) aluminum chloride; modification conditions are: nitrogen atmosphere, temperature 80-90°C (optimally 85°C), modification time 1-5h (optimally 2h). The modified oil needs to be purified after each modification.
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