A kind of flame-retardant simulated tree bark and preparation method thereof

Abstract

The invention provides a flame-retardant bark of an artificial tree and a making method thereof. The bark is prepared from the following raw materials: epoxy resin, polyaniline, carboxyl polysiloxane, heavy calcium carbonate powder, fumed silica, pigment printing paste, glass fiber, a curing agent, a fire retardant, dibutyl phthalate and a mixed solvent. The making method comprises the following steps: adding epoxy resin into a reaction vessel, then adding the mixed solvent for dissolving, adding polyaniline into the reaction vessel, mixing polyaniline with mixing under high-speed stirring, carrying out a reaction at 20 to 25 DEG C for 1 h with a pH value controlled to be 1 and then adding carboxyl polysiloxane; continuing the reaction at a temperature in a range of room temperature to 50 DEG C for 2 to 5 h; and then adding dibutyl phthalate, heavy calcium carbonate powder, fumed silica, pigment printing paste, glass fiber, the curing agent and the fire retardant, carrying out uniformly mixing under stirring, pouring the obtained mixture into a bark die placed in advance and carrying out micro-pressure standing so as to eventually obtain the flame-retardant bark of the artificial tree. The bark of the artificial tree has lifelike texture and flame retardation effect.

Description

technical field [0001] The invention relates to the field of imitation products, in particular to a flame-retardant simulated tree bark and a manufacturing method thereof. Background technique [0002] In recent years, with the rapid development of science and technology, modern facilities can be seen everywhere. In order to meet the social requirements for environmental protection and aesthetics, especially for tourist attractions, parks and other places with special requirements for landscape, People pay more and more attention to the facilities in these places, and hope that they can be close to nature and integrated with nature, so that tourists can feel that they are in a natural environment rather than an artificial environment. In the prior art, most of the landscape facilities in parks and scenic spots are made of concrete, and the outer layer is made of textures to simulate the shape of trees. Because it is relatively hard, the raised parts are easy to cause scratch...

AI Technical Summary

Problems solved by technology

Silicone artificial bark has the following defects: 1. Silicone products are very easy to age, and the service life is very short; 2. The physical properties of hard silicone bark are poor in thermal expansion and contraction, so it is easy to crack and deform; 3. Soft High-quality silicone bark is difficult to attach to pillars and walls, and as a material for covering pillars, it is very easy to be weathered and peeled off artificially; 4. Soft silicone bark has a strong odor; 5. Soft silicone is only suitable for regular The shape, irregular cylindrical or tubular objects, is completely unsuitable, and objects with small diameters are even more unsuitable; 6. The price is expensive and the cost cannot be controlled

[0009] The applicant found that the use of epoxy resin as the raw material for resin-synthesized bark board reduces the cost, has good flexibility and small deformation shrinkage, but has the disadvantage that it has no flame retardancy. When a fire occurs accidentally, the epoxy resin will still Has a combustion-supporting effect

However, there is no mature technology to prepare a simulated tree bark that is flame retardant, lightweight, high temperature resistant, and not easy to age. Therefore, people are still conducting continuous research and experiments on epoxy resin.

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