Preparation method of PTT conductive spinning master batch
By uniformly dispersing conductive materials on the PTT matrix and preparing PTT conductive spinning masterbatches, the problem of difficult preparation technology of achieving uniform conductive layers on the PTT matrix is solved, and high-efficiency and low-cost PTT conductive fiber preparation is achieved, with excellent Conductivity and wide application prospects.
Patent Information
- Application Number
- CN202411575076.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-02-18
AI Technical Summary
The preparation of a uniform conductive layer on the PTT matrix is difficult to achieve, and there is still a lack of mature processes and formulas.
By obtaining PTT resin, conductive material and additives, mixing in preset proportions, the conductive material is evenly dispersed in the PTT resin, and heated into a filamentous material through an extruder, and then cut into particles after cooling to obtain PTT conductive spinning masterbing grain.
The preparation of PTT conductive spinning masterbatches has been realized, with excellent conductivity, and can be used to produce high-quality PTT conductive fibers, which are widely used in textiles, electronics, energy and other fields.
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Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of polymer materials, and in particular relates to a method for preparing PTT conductive spinning masterbatch. Background Art
[0002] With the rapid development of science and technology, conductive materials have been widely used in many fields such as textiles, electronics, and energy. PTT (Polytrimethylene Terephthalate), as a new type of polyester fiber, has attracted attention from the industry for its excellent mechanical properties and processing performance. This patent proposes a new preparation and application technology for PTT conductive spinning masterbatch, which aims to uniformly disperse the conductive material in the PTT matrix through a specific preparation process to form PTT conductive fibers with excellent conductive properties.
[0003] At present, the main methods for preparing conductive fibers include post-finishing method, composite spinning method and conductive fiber blending method. However, these methods have many shortcomings in terms of conductivity, fiber strength, processing performance, etc. In particular, the preparation of a uniform conductive layer on a PTT substrate is technically difficult and lacks mature processes and formulas. Summary of the invention
[0004] The purpose of the present invention is to provide a method for preparing a PTT conductive spinning masterbatch, aiming to solve the problem of preparing a uniform conductive layer on a PTT substrate, which is technically difficult and lacks mature processes and formulas.
[0005] The present invention is achieved by a method for preparing a PTT conductive spinning masterbatch, the method comprising:
[0006] Obtain raw materials, which include PTT resin, conductive material and additives, mix the PTT resin, conductive material and additives in a preset ratio, evenly disperse the conductive material in the PTT resin, heat the mixed raw materials, and extrude them into filamentary materials through an extruder, cool the extruded filamentary materials and cut them into granules to obtain PTT conductive spinning masterbatch.
[0007] Preferably, in the step of uniformly dispersing the conductive material in the PTT resin, the conductive material is dispersed in the PTT resin by high-speed stirring or ball milling.
[0008] Preferably, in the raw materials, the conductive material is composite particles of carbon nanotubes and conductive carbon black and composite particles of conductive carbon black.
[0009] Preferably, in the raw materials, the auxiliary agents include dispersants and coupling agents.
[0010] Preferably, the raw material comprises 100 parts of PTT resin, 5 parts of conductive material, 1 part of dispersant, and 0.5 parts of coupling agent.
[0011] Preferably, when the raw material is extruded into the filamentary material through the extruder, the raw material is heated to 210°C.
[0012] Another object of the present invention is a PTT conductive fiber, which is made from the PTT conductive spinning masterbatch prepared by the preparation method of the PTT conductive spinning masterbatch as mentioned above.
[0013] The preparation method of the PTT conductive spinning masterbatch provided by the present invention has a simple preparation process and low production cost. The prepared masterbatch has excellent conductive properties and can be used to produce high-quality PTT conductive fibers. The fibers spun using the masterbatch have stable conductive properties and excellent mechanical properties and can be widely used in the fields of textiles, electronics, energy, etc. DETAILED DESCRIPTION
[0014] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script.
[0015] A method for preparing a PTT conductive spinning masterbatch, the method comprising:
[0016] Obtain raw materials, which include PTT resin, conductive material and additives, mix the PTT resin, conductive material and additives in a preset ratio, evenly disperse the conductive material in the PTT resin, heat the mixed raw materials, and extrude them into filamentary materials through an extruder, cool the extruded filamentary materials and cut them into granules to obtain PTT conductive spinning masterbatch.
[0017] In this embodiment, the raw materials are prepared by selecting PTT resin, conductive materials (composite particles of carbon nanotubes and conductive carbon black, etc.) and auxiliary agents (such as dispersants, coupling agents, etc.).
[0018] Preparation of conductive materials: Carbon nanotubes are pre-added to a solution containing a hydrophilic and hydrophobic surfactant to make them in a monodisperse state, and then floccules of carbon blocks are added to the above solution to form carbon black in a particle state.
[0019] Raw material mixing: PTT resin, conductive material and additives are mixed in a certain proportion, and the conductive material is evenly dispersed in the PTT resin by high-speed stirring or ball milling.
[0020] Melt extrusion: The mixed materials are heated to a molten state and extruded into filaments through an extruder.
[0021] Cooling and cutting: The extruded filamentary material is cooled and cut into granules to obtain PTT conductive spinning masterbatch.
[0022] The PTT conductive spinning masterbatch of the present invention is used in a spinning process, and the masterbatch is spun into fibers by a spinning machine to obtain PTT conductive fibers with excellent conductive properties. The fibers can be used to make antistatic textiles, electromagnetic shielding materials, sensors, etc. Specific embodiment one:
[0024] Raw material preparation: 100 parts of PTT resin, 5 parts of carbon nanotubes, 1 part of dispersant, and 0.5 parts of coupling agent.
[0025] Raw material mixing: After mixing the above raw materials, stir them in a high-speed mixer for 30 minutes to evenly disperse the carbon nanotubes in the PTT resin.
[0026] Melt extrusion: The mixed materials are heated to 210°C and extruded into filaments through an extruder.
[0027] Cooling and cutting: After the extruded filamentary material is cooled, it is cut into granules with a length of 5 mm to obtain PTT conductive spinning masterbatch.
[0028] PTT conductive fiber masterbatch specific process table
[0029]
[0030]
[0031] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.
[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A method for preparing a PTT conductive spinning masterbatch, characterized in that: The method comprises: Obtain raw materials, which include PTT resin, conductive material and additives, mix the PTT resin, conductive material and additives in a preset ratio, evenly disperse the conductive material in the PTT resin, heat the mixed raw materials, and extrude them into filamentary materials through an extruder, cool the extruded filamentary materials and cut them into granules to obtain PTT conductive spinning masterbatch.
2. The method for preparing the PTT conductive spinning masterbatch according to claim 1, characterized in that: In the step of uniformly dispersing the conductive material in the PTT resin, the conductive material is dispersed in the PTT resin by high-speed stirring or ball milling.
3. The method for preparing the PTT conductive spinning masterbatch according to claim 1, characterized in that: Among the raw materials, the conductive material is composite particles of carbon nanotubes and conductive carbon black.
4. The method for preparing the PTT conductive spinning masterbatch according to claim 1, characterized in that: Among the raw materials, the auxiliary agents include dispersants and coupling agents.
5. The method for preparing the PTT conductive spinning masterbatch according to claim 4, characterized in that: The raw materials include 100 parts of PTT resin, 5 parts of conductive material, 1 part of dispersant, and 0.5 parts of coupling agent.
6. The method for preparing PTT conductive spinning masterbatch according to claim 4, characterized in that: When the raw material is extruded into the filamentary material through the extruder, the raw material is heated to 210°C.
7. A PTT conductive fiber, characterized in that: The PTT conductive fiber is made from the PTT conductive spinning masterbatch prepared by the preparation method of the PTT conductive spinning masterbatch according to any one of claims 1 to 6 as a raw material.