A kind of phase-controlled ceramizable halogen-free flame-retardant polyolefin composite material and preparation method thereof
A composite material and ceramicization technology, which is applied in the field of halogen-free flame retardant polyolefin composite materials and their preparation, can solve the problems of poor flame retardant performance and inability to meet flame retardant requirements, and achieve the effect of reducing difficulty
Active Publication Date: 2022-05-17
HARBIN UNIV OF SCI & TECH
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Problems solved by technology
[0008] The purpose of the present invention is to solve the problem that the existing ceramized resin composite materials have poor flame retardant properties and cannot meet the flame retardant requirements, and provide a phase-regulated ceramizable halogen-free flame-retardant polyolefin composite material and its preparation method
Method used
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specific Embodiment approach 1
[0035] Specific Embodiment 1: In this embodiment, a phase-regulated ceramizable halogen-free flame-retardant polyolefin composite material consists of 30-60 parts by weight of resin, 35-65 parts of inorganic flame retardant, 1-7 parts Prepared by ceramic precursor polymer and 2-20 parts of additives;
[0036] The auxiliary agent includes one or more of antioxidants, crosslinking agents, coupling agents, processing aids and functional fillers.
specific Embodiment approach 2
[0037] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the resin is composed of polar resin and non-polar resin, and the mass ratio of polar resin and non-polar resin is (1~4): (1~4). Other steps are the same as in the first embodiment.
specific Embodiment approach 3
[0038]Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the polar resin is ethylene-vinyl acetate copolymer, thermoplastic polyurethane, ethylene methyl acrylate, ethylene ethyl acrylate, ethylene - One or a combination of butyl acrylate and ethylene acrylic acid copolymer. Other steps are the same as those in Embodiment 1 or 2.
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Abstract
The invention discloses a phase-regulating ceramizable halogen-free flame-retardant polyolefin composite material and a preparation method thereof, which relates to a halogen-free flame-retardant polyolefin composite material and a preparation method thereof. The purpose of the invention is to solve the problem that the existing ceramic resin composite material has poor flame retardancy and cannot meet the flame retardancy requirements. A phase-regulated and ceramizable halogen-free flame-retardant polyolefin composite material is prepared from resin, inorganic flame retardant, ceramic precursor polymer and auxiliary agent in parts by weight. Method: 1. Weighing; 2. Preparation of mixed powder; 3. Preparation of material A; 4. Preparation of material B; 5. Adding material A and material B into an internal mixer for mixing and granulation. The invention utilizes the phase control technology to obtain the selective distribution of the inorganic flame retardant, and realizes the ceramic flame retardancy of the inorganic flame retardant in the specific phase of the composite material. The invention can obtain a phase-regulated and ceramizable halogen-free flame-retardant polyolefin composite material.
Description
technical field [0001] The invention relates to a halogen-free flame-retardant polyolefin composite material and a preparation method thereof. Background technique [0002] Due to its excellent electrical insulation properties, good physical properties, and easy processing, polyolefin composite materials have been widely used in many engineering fields, especially as excellent insulating materials in the wire and cable industry. With the rapid development of the economy, the demand for wires and cables is increasing, and their safety during use has also attracted much attention. Most wire and cable insulation materials are flammable polyolefin materials, so wire and cable insulation materials are flammable, and there is a risk of fire under certain circumstances. Due to the requirements of environmental protection and low cost, inorganic flame retardants such as magnesium hydroxide, aluminum hydroxide, and red phosphorus have become the preferred flame retardant additives f...
Claims
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IPC IPC(8): C08L23/06C08L23/08C08L23/00C08L83/16C08L23/12C08K3/22C08K5/5425C08K3/38
CPCC08L23/0853C08L23/06C08L23/0869C08L23/00C08L2205/03C08L2205/035C08L2201/02C08L2201/22C08K2003/2227C08K2003/387C08K2003/385C08K2003/2224C08L83/16C08K3/22C08K5/5425C08L23/12C08K3/38
Inventor 王春锋侯鹏程王永亮韩志东张铁锋
Owner HARBIN UNIV OF SCI & TECH