Polyoxymethylene composition and preparation method thereof

A polyoxymethylene composition and a polyoxymethylene technology are applied in the material field, which can solve the influence of the density and shrinkage rate of the hollow glass microsphere material without mentioning the feeding method of the hollow glass microspheres, and the appearance quality of the shrinkage anisotropic injection molding products. , can not meet the problems of special applications, etc., to achieve the effect of environmental protection, beautiful color, small broken rate
CN103804847AActive Publication Date: 2014-05-21HEFEI GENIUS NEW MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI GENIUS NEW MATERIALS
Publication Date
2014-05-21

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Abstract

Belonging to the technical field of materials, the invention relates to a polyoxymethylene resin composition and a preparation method thereof. The polyoxymethylene composition comprises the following components by weight: 100 parts of polyoxymethylene, 5-15 parts of hollow glass beads, 0.1-0.2 part of white oil, 0.5-1 part of calcium stearate, 0.3-0.6 part of a main antioxidant, 0.3-0.6 part of an auxiliary antioxidant, 0.5-0.8 part of a formaldehyde absorbent, and 0.1-0.3 part of a nucleating agent. Compared with the prior art, the polyoxymethylene composition prepared by the invention has the characteristics of low density, low shrinkage, good surface quality, high whiteness, good rigidity, and low bead breakage rate.
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Description

technical field

[0001] The invention belongs to the technical field of materials, and relates to a polyoxymethylene resin composition and a preparation method thereof. Background technique

[0002] Polyoxymethylene (POM), known as "Saigang", is an engineering plastic with excellent comprehensive properties, but due to its high crystallinity of 70%-80%, it has a high density and high shrinkage, which limits the accuracy of POM in some dimensions. Applications in demanding lightweight parts.

[0003] Deng Cong ("Polymer Materials and Engineering", 2005, 21(3):160-163, Structure and performance of hollow glass microspheres filled modified POM), studied the effect of glass microsphere content and particle size on POM / glass The influence of the mechanical properties, fluidity and dispersion form of the microbead composite system, but did not mention the feeding method of the hollow glass microspheres, and the influence of the hollow glass microspheres on the density and shrinkag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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