Polyformaldehyde masterbatch with double-function of toughening and coloring, and preparation method thereof

A polyoxymethylene, dual-function technology, applied in the field of polyoxymethylene masterbatch and preparation, to achieve the effects of improving notched impact strength, reducing strength and rigidity, and improving mechanical properties

Active Publication Date: 2012-06-20
ZHEJIANG QISELU MASTERBATCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the polyoxymethylene masterbatch with dual func

Method used

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  • Polyformaldehyde masterbatch with double-function of toughening and coloring, and preparation method thereof
  • Polyformaldehyde masterbatch with double-function of toughening and coloring, and preparation method thereof
  • Polyformaldehyde masterbatch with double-function of toughening and coloring, and preparation method thereof

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Embodiment Construction

[0029] The five embodiments of the present invention described in Table 2 below use polyether polyurethane elastomer as the main toughening agent, and nano-level layered silicates and nano-level inorganic pigments are pigment carbon black (1) and rutile titanium. White powder (2), cadmium red (3), titanium yellow (4), cobalt blue (5), iron brown (6) are toughening agents and coloring agents, polysiloxane is lubricating dispersing and release agent, and melamine is absorbent Aldehydes, phenylethyl phenol and diphenyl-p-phenylenediamine are acid absorbents and heat stabilizers, but the examples should not be interpreted as limiting the scope of the present invention.

[0030] Table 2 Example formula

[0031]

[0032] The preparation steps of the foregoing embodiment are as follows:

[0033] 1. The raw materials determined in the formula of the embodiment are properly measured according to the proportion, put into a high-speed mixer, firstly mix at low speed for 5 minutes, then turn to...

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Abstract

In the prior art, due to the structure characteristics of the polyformaldehyde, the coloring and the toughening of the polyformaldehyde are difficult compared to other plastics so as to provide a worldwide exploration problem. The present invention relates to a polyformaldehyde masterbatch with double-function of toughening and coloring, and a preparation method thereof. The polyformaldehyde masterbatch comprises, by weight, 70-90% of a thermoplastic polyurethane elastomer, 7-9% of nano-scale silicate, 0.8-2.5% of a nano-scale coloring agent, 1-3% of melamine, 0.3-0.8% of a surfactant polysiloxane, and 0.2-0.5% of an anti-aging agent, wherein the anti-aging agent is a mixture comprising styrenated phenol and diphenyl-p-phenylenediamine. The polyformaldehyde masterbatch of the present invention has the double functions of toughening and coloring, such that the strength and the stiffness of the material are not reduced while the notched impact strength of the POM is substantially improved, and the processing fluidity and the thermal deformation resistance are improved.

Description

Technical field [0001] The invention relates to the field of color masterbatches for engineering plastic modification, in particular to a polyoxymethylene masterbatch with dual functions of toughening and coloring and a preparation method. Background technique [0002] Polyoxymethylene (POM) is a class of engineering plastics with excellent comprehensive properties. Compared with other polymer materials, it has the advantages of high mechanical strength, fatigue resistance, chemical resistance, friction resistance and self-lubricity. It is indispensable in engineering materials. Replacement status, but its thermal stability is poor and notch sensitivity is large. Due to its structural characteristics, the coloring and toughening of POM is much more difficult than other plastics, and it can be said that it is still one of the world's exploration problems. At present, there is no report about the toughening and coloring dual-functional polyoxymethylene masterbatch. Summary of the...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L83/04C08K13/02C08K3/34C08K5/3492C08J3/22C08L59/00
Inventor 王仲文汤志龙王执中周梅荣傅琪斌
Owner ZHEJIANG QISELU MASTERBATCH
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