PBT alloy, preparation method and application thereof

By incorporating a composite liquid crystal polymer into PBT alloy and forming a micro-network, the problem of high heat dissipation and noise in high-power humanoid robots has been solved, enabling the application of low-noise PBT alloy parts.

CN122325944APending Publication Date: 2026-07-03KINGFA SCI & TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KINGFA SCI & TECH CO LTD
Filing Date
2026-04-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The heat dissipation and noise problem of existing PBT alloys in high-power humanoid robots has not been effectively solved, resulting in increased noise.

Method used

By adding a composite liquid crystal polymer to a PBT alloy and in-situ fiberizing it under molten conditions, a micro-network is formed by combining it with a compatibilizer. The melting point and weight ratio of the liquid crystal polymer are controlled to dissipate energy and reduce noise.

Benefits of technology

The prepared PBT alloy parts have low noise performance and are suitable for heat dissipation components of high-power humanoid robots.

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Abstract

This invention discloses a PBT alloy, its preparation method, and its applications. The PBT alloy comprises the following components in parts by weight: polybutylene terephthalate (PET), a composite liquid crystal polymer, and 0.1-8 parts of compatibilizer; the total weight of PET and the composite liquid crystal polymer is 20-100 parts; the composite liquid crystal polymer comprises liquid crystal polymer A and liquid crystal polymer B in a weight ratio of 1:(0.15-3.3); the melting point of liquid crystal polymer A is 255℃-285℃; and the melting point of liquid crystal polymer B is 315℃-345℃. Parts prepared using the PBT alloy of this invention exhibit low noise.
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