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A technology of composition and polyester, which is applied in the field of polyester composition, can solve problems such as inability to carry out LDS, large molding shrinkage, poor acid and alkali resistance, etc., to improve the precision and accuracy of laser engraving, improve strength, and heat resistance sex good effect
Active Publication Date: 2016-06-01
SHENZHEN HALCYON NEW MATERIALS
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Problems solved by technology
The invention solves the disadvantages of low bonding force between ordinary LDS special material and metal, large molding shrinkage rate, poor acid and alkali resistance, and inability to carry out LDS; the polyester composition for NMT of the present invention has strong bonding force with metal, and the
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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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Embodiment 1
[0062] Embodiment 1: The polyester composition for NMT with LDS function of the present embodiment is mainly composed of the following raw materials in parts by mass:
[0063]
[0064] Among them, the glass fiber is an ordinary cylindrical cross-section glass fiber, and the model is 3610.
[0065] The method for preparing the above-mentioned polyester composition for NMT with LDS function is as follows:
[0066] (1) According to the above formula content, PBT resin, PCT resin, transesterification inhibitor, LDS auxiliary agent, thermal oxygen stabilizer, toughening agent and lubricant are mixed to obtain a mixture;
[0067] (2) Putting the mixture and glass fibers into an extruder, performing melt blending, adding inorganic whiskers, extruding and granulating, and obtaining a polyester composition for NMT with LDS function.
Embodiment 2
[0068] Embodiment 2: The NMT polyester composition with LDS function of the present embodiment, by mass parts, includes the following components:
[0069]
[0070]
[0071] Among them, the glass fiber is an ordinary cylindrical cross-section glass fiber, and the model is 3610.
[0072] The method for preparing the polyester composition for NMT in this example is the same as that in Example 1.
Embodiment 3
[0073] Embodiment 3: The glass fibers in this embodiment are glass fibers with equal cross-section and special-shaped cross-section, and the degree of deformation is 3:1. The inorganic whiskers are zinc oxide whiskers, ceramic whiskers or calcium sulfate whiskers, and the others are the same as in Embodiment 2.
[0074] The method for preparing the polyester composition for NMT in this example is the same as that in Example 1.
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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Abstract
The invention provides an NMT polyester composition with an LDS function and a preparation method thereof. The NMT polyester composition with the LDS function is mainly prepared from, by mass, 40-90 parts of polyester, 10-40 parts of PCT resin, 0.1-5 parts of ester exchange inhibitor, 10-40 parts of glass fibers, 3-30 parts of inorganic crystal whiskers, 3-15 parts of LDS assistant, 0.3-5 parts of thermal oxidation stabilizer and 3-15 parts of flexibilizer. The polyester is PBT resin and/or PET resin. The binding force between the NMT polyester composition and metal is high, binding strength is higher than 180 kgf/cm<2>, laser etching and chemical plating effects are good, and the requirements of LDS and NMT technologies are met at the same time. The defects that binding force between a common LDS special material and metal is low, molding shrinkage is large, acid-base resistance is poor, and LDS cannot be conducted are overcome; the mechanical performance of the material is excellent, heat resistance is good, and molding processability is excellent.
Description
technical field [0001] The invention relates to the technical field of polyester compositions, in particular to a polyester composition for NMT with LDS function. Background technique [0002] With the development of science and technology and the improvement of living standards, many mainstream high-end products in the communication field such as mobile phones are increasingly made of metal materials, such as portable video player shells, audio player shells, display cabinets, car computer panels, and mobile communication products. High-end products in fields such as casings, projector casings, front and back covers of laptops, etc. are all made of metal. NMT (NanoMolding Technology) technology is a nano-molding technology that combines metal and plastic nanotechnology. Although the industrialization of NMT technology has realized the integrated molding of metal-plastic materials, it simplifies the design and manufacturing process of product mechanism components, improves ...
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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Application Information
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