2results about How to "Maintain rigidity" patented technology

This application provides a modified photocurable oligomer, its preparation method, and a photocurable 3D printing resin. The preparation method of the modified photocurable oligomer includes the following steps: providing an acrylic monomer, a triblock thermoplastic elastomer, a coupling agent, and a polyurethane acrylate; dissolving the triblock thermoplastic elastomer in the acrylic monomer to obtain a block copolymer mixed solution; adding the coupling agent to the block copolymer mixed solution to obtain a modified block copolymer mixed solution; adding the polyurethane acrylate to the modified block copolymer mixed solution, and mixing to obtain the modified photocurable oligomer. The modified photocurable oligomer, its preparation method, and the photocurable 3D printing resin provided in this application use a triblock thermoplastic elastomer as a toughening reinforcing phase, and chemically modify its surface using a coupling agent, enabling it to form a strong chemical bond interface with the polyurethane acrylate after pre-dispersion in the acrylic monomer.

The invention discloses a cylindrical rotating body for a weight-reducing centrifugal dehydrator and the weight-reducing centrifugal dehydrator. A cylindrical rotating body (100) according to the present invention is provided with: an inner member (140) made of stainless steel; a pair of fixing members (150) extending at both ends of the inner member so as to protrude along the edge of the inner member; a first outer member (160) integrated along the outer surface of the inner member and made of a composite material; a plurality of reinforcing members (170) disposed along the longitudinal direction on the outside of the first outer member so as to be equally spaced in the circumferential direction and fixed to the pair of fixing members with both ends thereof tightened; and a second outer member (180) formed of a composite material, the second outer member (180) being integrated along the outer surface of the first outer member so as to cover the plurality of reinforcing members. Thus, it is possible to reduce power consumption by reducing the overall weight and thereby maintain strength and rigidity while reducing CO2 emissions.