PBT (polybutylece terephthalate) engineering plastic composition used for NMT (Nano Molding Technology)

A technology of engineering plastics and compositions, applied in the field of engineering plastics, can solve the problems of poor rigidity, low notched impact strength, low thermal deformation temperature, etc.

Active Publication Date: 2015-08-19
SHENZHEN HALCYON NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, the disadvantages of PBT as NMT engineering plastics include: (1) low notched impact strength; (2) low thermal deformation temperature under high load, and the thermal deformation temperature (1.82MP) is only about 60°C; (3) rigidity at high temperature Poor; (4) Poor adhesion to metal materials

Method used

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  • PBT (polybutylece terephthalate) engineering plastic composition used for NMT (Nano Molding Technology)
  • PBT (polybutylece terephthalate) engineering plastic composition used for NMT (Nano Molding Technology)
  • PBT (polybutylece terephthalate) engineering plastic composition used for NMT (Nano Molding Technology)

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Embodiment 1

[0083] Embodiment 1: the PBT engineering plastics composition that is used for NMT technology of the present embodiment, by mass parts, comprises the following components:

[0084]

[0085] Among them, the intrinsic viscosity of PBT is 1.0g / dL, the intrinsic viscosity of PET is 0.82g / dL, the glass fiber is Owens Corning's 183F, and the toughening agent is ethylene / methyl acrylate copolymer and maleic anhydride copolymer. It can be toughening agent 35BA40 and toughening agent 4700, the quality of the two is 1:1.

[0086] The above-mentioned PBT engineering plastic composition preparation method for NMT technology is as follows:

[0087] In terms of parts by mass, 60 parts of PBT resin, 10 parts of PET resin, 8 parts of toughening agent, 1 part of antioxidant, 1.1 part of heat stabilizer, 0.5 part of polyethylene wax and 0.3 part of pentaerythritol stearate were pre-mixed uniformly get the mixture;

[0088] 15 parts of the mixture and glass fibers were put into an extruder ...

Embodiment 2

[0089] Embodiment 2: the PBT engineering plastics composition that is used for NMT technology of the present embodiment, by mass parts, comprises the following components:

[0090]

[0091] Among them, the intrinsic viscosity of PBT in this embodiment is 1.0g / dL, the intrinsic viscosity of PET is 0.82g / dL, the glass fiber is Owens Corning's 183F, and the toughening agent is ethylene / methyl acrylate copolymer and maleic acid The acid anhydride copolymer can be toughening agent 35BA40 and toughening agent 4700, and the quality of the two is 1:1.

[0092] The above-mentioned preparation method of the PBT engineering plastics composition that is used for NMT technology is as follows:

[0093] In parts by mass, 60 parts of PBT resin, 16 parts of PET resin, 4 parts of toughening agent 35BA40, 4 parts of toughening agent 4700, 1 part of antioxidant, 1.1 parts of thermal stabilizer, 1 part of polyethylene wax, pentaerythritol stearin 0.3 parts of acid ester and 0.5 parts of nuclea...

Embodiment 3

[0095] Embodiment 3: The PBT engineering plastics composition that is used for NMT technology of the present embodiment, by mass parts, comprises the following components:

[0096]

[0097] Among them, the intrinsic viscosity of PBT is 1.0g / dL, the intrinsic viscosity of PET is 0.82g / dL, the glass fiber is 183F of Owens Corning, and the toughening agent is glycidyl methacrylate copolymer and methacrylic acid copolymer And maleic anhydride copolymer, can be toughening agent AX8900, toughening agent 3990 and toughening agent 8200, the molar ratio of the glycidyl methacrylate functional group and the sum of carboxyl functional group and acid anhydride functional group in the above-mentioned toughening agent is at 1 : 0.6.

[0098] The preparation method of the PBT engineering plastic composition used in the NMT technology in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention provides a PBT (polybutylece terephthalate) engineering plastic composition used for a NMT (Nano Molding Technology) and a preparation method thereof. The PBT engineering plastic composition used for the NMT comprises the following components in parts by mass: 60 parts of PBT resin, 5 to 60 parts of PET (polyethylene glycol terephthalate) resin, 10 to 16 parts of glass fibers, 5 to 15 parts of flexibilizer, 0.3 to 3 parts of antioxidants, 0.3 to 2 parts of heat stabilizers, and 0.5 to 3 parts of lubricants, wherein the flexibilizers are selected from the mixture of at least two of unsaturated carboxylic ester, unsaturated carboxylic ester copolymers, saturated carboxylic acid vinyl ester, saturated carboxylic acid vinyl ester copolymers, unsaturated epoxy compounds, unsaturated epoxy copolymers, unsaturated carboxylic acid, unsaturated carboxylic acid copolymers, unsaturated acid anhydride or unsaturated acid anhydride copolymers. The bond force between the PBT engineering plastic composition and a metal material is excellent, and the NMT process requirements can be met; meanwhile, excellent mechanical performance and heat resistance are realized.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a PBT engineering plastic composition used in NMT technology. Background technique [0002] As we all know, metal materials are strong polar materials, while PBT resin and PET resin are polymer materials with weak polarity. According to the principle of similarity and compatibility, the binding force between two materials with very different polarities is very low, coupled with the difference between the extremely low shrinkage rate of metal materials and the high shrinkage rate of polymer materials, metal materials and resins can be directly bonded once. The molded material has a very low interfacial bonding force at the junction between metal and resin, and is prone to fracture. However, NMT (Nano Molding Technology) technology can solve this problem well. [0003] NMT (Nano Molding Technology) technology is a nano-molding technology that combines metal and plasti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08K13/06C08K9/06C08K7/14C08K5/101C08K5/103C08K5/18B29C47/92B29C48/92
Inventor 曹艳霞赖华林秦勇
Owner SHENZHEN HALCYON NEW MATERIALS
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