Plant oil-based polyurethane composite material and preparation method therefor

Abstract

The invention discloses a plant oil-based polyurethane composite material and a preparation method therefor. The plant oil-based polyurethane composite material comprises materials in a group A which comprises 40-80 parts of plant oil-based polyether polyhydric alcohol, 7-50 parts of special polyether polyol, 2-4 parts of a special metal auxiliary, 0-0.5 part of a catalyst, 0-2 parts of a crosslinking agent, 5-6 parts of amine-terminated polyether and 1.5-3 parts of a foaming agent; and a material in a group B which comprises 20-50 parts of isocyanate. A polyurethane product obtained can be degraded, so that air pollution can be reduced, and moreover, as the metal silver ion auxiliary is added into the product, so that not only can effects of resisting static electricity, resisting bacteria and preventing mites be achieved, but also the use level of the amine catalyst can be reduced by virtue of a catalytic function of the metal ion auxiliary. Even the catalyst is not added, so that pungent smells of the product are reduced or even avoided on the premise of a relatively good performance. In addition, the product according to the technical scheme has relatively good comfort.

Description

technical field [0001] The invention belongs to the field of polymer chemistry, and in particular relates to a vegetable oil-based polyurethane composite material and a preparation method thereof. Background technique [0002] Polyurethane is a common polymer material that is widely used in daily life. However, traditional polyurethane products have poor performance in terms of temperature balance, and usually show two extreme states in summer and winter, too soft or too hard, seriously affect comfort. Among them, the thermal conductivity of polyurethane is a problem that urgently needs to be solved for products such as polyurethane pillows and mattresses. The products produced by the prior art are usually stuffy, and users will feel hotter and hotter after prolonged use. On the other hand, antibacterial, anti-mite and anti-static are also a major problem for existing polyurethane products. It is necessary to prevent anti-bacterial and anti-mite because of the difficulty of...

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Problems solved by technology

On the other hand, antibacterial, anti-mite and anti-static are also a major problem for existing polyurethane products. Given the premise that cleaning is difficult, anti-bacterial and anti-mite are very necessary, and static electricity in dry areas is very troublesome.

In addition, traditional polyurethane products cannot be degraded naturally, and can only be discarded by burning when the service life expires, which will cause air pollution. Moreover, traditional polyurethane products will add a lot of amine catalysts due to the reaction. The product itself has a pungent smell and does not participate in chemical reactions. It is removed by ventilation and volatilization in the later stage of the product, which is neither environmentally friendly nor difficult to operate

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