Transparent high polymer material as well as preparation method and application thereof

Abstract

The invention relates to a high-molecular transparent material with low conjugate transmission degree and low toxicity, a catalytic condensation high-polymerization-degree and high-hardness transparent high polymer product thereof, and a preparation method and application of the transparent high polymer product. The invention aims to design and synthesize a low-toxicity transparent high polymer material with low visible light interference or no visible light interference, and to select, optimize and screen a catalyst suitable for condensation polymerization. According to the invention, m-phthalic acid or dimethyl m-phthalate is used as one of conjugated hindered monomers for the first time, and another aliphatic diol which has no conjugation performance and has certain controllable rigidity and cyclohexyl-containing diol are selected as diol monomers to synthesize the transparent polyester high polymer material, so that the visible light interference phenomenon is reduced as much as possible, the low toxicity can be ensured, the controllable hardness is ensured, and meanwhile, the physical property requirement of the transparent material can be met when the transparent material is applied at a specific temperature. In order to achieve the aims, firstly, all possible effective smooth conjugation phenomena need to be avoided, and meanwhile, a non-toxic monomer, a low-toxicity catalyst and a monomer with certain controllable rigidity need to be selected.

Description

technical field [0001] The patent of the present invention relates to low conjugation transmission degree, low toxicity high molecular transparent material and its catalytic condensation high polymerization degree high hardness transparent high polymer product and its preparation method and application. Background technique [0002] Transparent polymer materials are widely used in optical components, packaging, construction, medical supplies, optical fibers, optical disc materials and daily necessities. The unique feature of this type of material is that the light transmittance in daily light should reach more than 80%. [0003] So far, transparent polymer materials have the following categories: [0004] (1) Polycarbonate [0005] The transparency of polycarbonate (PC) can reach 89%, and the haze is 1%. The product has good dimensional stability and high mechanical properties, and can be used for a long time at a temperature of 135°C. The disadvantage of polycarbonate is ...

AI Technical Summary

Problems solved by technology

[0022] The disadvantage of transparent nylon is that it is prone to light-induced yellowing and easy to absorb water. If the water absorption is large enough, it will affect the dimensional stability and electrical properties. Water absorption will also greatly reduce the mechanical strength of the plastic.

The technical requirements for anti-static nylon injection molding are relatively strict, and the existence of trace moisture will cause damage to the molding quality. If the wall thickness is uneven, it will lead to distortion and deformation of the part; the precision of the equipment required for post-processing of the part is high

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