A high-performance anti-warping glass fiber reinforced pbt/asa alloy material

An alloy material and anti-warping technology, which is applied in the field of high-performance anti-warping glass fiber reinforced PBT/ASA alloy materials, can solve the problems of product warping, inconsistent longitudinal and transverse shrinkage, etc., to achieve easy molding and improve anti-warping The effect of curved performance and cost reduction

Active Publication Date: 2019-01-29
中广核俊尔(上海)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the longitudinal and transverse shrinkage of the product after glass fiber reinforcement is inconsistent, which may easily cause the product to warp

Method used

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  • A high-performance anti-warping glass fiber reinforced pbt/asa alloy material
  • A high-performance anti-warping glass fiber reinforced pbt/asa alloy material
  • A high-performance anti-warping glass fiber reinforced pbt/asa alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0030] Add PBT resin, ASA resin, minerals and various additives to the high-speed mixer and stir at high speed for 2 minutes, then add it to the main feeder of the extruder, add glass fiber from the side feed button, and finally enter the twin-screw extrusion Carry out basic granulation in the machine. The temperature distribution of the extruder is as follows: from the feed section to the head: 210°C, 245°C, 245°C, 240°C, 235°C, 230°C, 230°C, 220°C, 210°C, die head: 245°C , After the material is extruded, it is water-cooled, pelletized, and then packaged. The pellets were placed in a blast drying oven and dried at 90°C for 4 hours, and then the test specimens were prepared by an injection molding machine.

[0031] The parts by weight of each raw material of Examples 1-5 are shown in Table 1.

[0032] Table 1 The parts by weight of raw materials of Examples 1-5

[0033]

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Abstract

The invention discloses a high-performance anti-warping glass fiber reinforced PBT / ASA alloy material. The high-performance anti-warping glass fiber reinforced PBT / ASA alloy material is characterized by being prepared from, by weight, 30%-60% of PBT, 5%-20% of minerals, 10%-40% of ASA, 1%-5% of toughening agents, 5%-30% of glass fibers, 0.1%-1.5% of nucleating agents and 0.8%-1.5% of processing aids. The invention provides the glass fiber reinforced PBT / ASA alloy material which has excellent mechanical property and excellent anti-warping property, the novel alloy can be applied to workpieces such as truck outward turning decoration strips which are prone to warping and high in aging requirement, and a wide industrial application prospect is achieved.

Description

technical field [0001] The invention belongs to the technical field of modified PBT / ASA, and in particular relates to a high-performance anti-warping glass fiber reinforced PBT / ASA alloy material. Background technique [0002] PBT (Polybutylene Terephthalates) is the latest and fastest-growing variety of general engineering plastics. Although it was not industrialized until the 1970s, due to its excellent comprehensive performance and good Excellent formability and excellent cost performance, it will soon sell well in the market. PBT has high heat resistance, toughness, fatigue resistance, self-lubrication, low friction coefficient, weather resistance, low water absorption, and maintains various physical properties (including electrical properties) and electrical insulation in a humid environment. Crystalline, good formability. In the field of automobile manufacturing, PBT is widely used in the production of carburetor components, fenders, spark plug terminal boards and ot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L51/00C08K13/04C08K7/14C08K3/36C08K3/34B29C48/92
Inventor 顾伟黄志杰杨燕杨仓先
Owner 中广核俊尔(上海)新材料有限公司
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