Polyester having thermal ageing resistant performance and production method thereof
A technology of anti-heat aging and polyester, applied in the field of polyester and its production, can solve problems such as performance deterioration and loss of use value, and achieve the effect of good flame retardant performance and excellent thermal aging resistance.
Active Publication Date: 2012-10-31
东莞市东翔塑胶有限公司
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Problems solved by technology
As we all know, plastic is a material that is relatively easy to age. During use, the quality and service life of plastic parts are closely related to the aging of plastics. When aging occurs, its performance will gradually deteriorate until it eventually loses use value
Method used
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Embodiment Construction
[0055] The thermoplastic polyester, toughening agent, antioxidant, heat stabilizer, and other additives are proportioned according to weight components, and after being uniformly mixed in a high-speed mixer, they are sent to the main feed in the twin-screw extruder. Glass fibers are then added in side feed, extruded, cooled, pelletized, dried and packaged.
[0056] When mixing in a high-speed mixer, the main flame retardant and flame retardant synergist can also be added and mixed together.
[0057] The length-to-diameter ratio of the screws of the twin-screw extruder is 25-50:1, the set temperature of the screws is 180-245° C., and the screw speed is set at 200-600 rpm.
[0058] The consumption of each component of concrete embodiment 1-6 and comparative example is shown in table (consumption in table is weight part).
[0059]
[0060]
[0061]
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Abstract
The invention discloses polyester having thermal ageing resistant performance, which comprises a thermoplastic polyester, a flexibilizer, antioxygen, a heat stabilizer, a filler and other assistant. The product has high thermal ageing resistant performance and high flame-retarding performance.
Description
technical field [0001] The present invention relates to a kind of polyester and its production method. Background technique [0002] Reinforced flame retardant (non-flame retardant) polyesters are widely used in the electronics, appliances and automotive industries due to their good mechanical and electrical properties, making them ideal materials for components in these industries. As we all know, plastic is a material that is relatively easy to age. During use, the quality and service life of plastic parts are closely related to the aging of plastic. When aging occurs, its performance will gradually deteriorate until it eventually loses use value. The aging of plastics is mainly manifested in the following forms, such as cracking, stickiness, hardening, softening, pulverization, discoloration, and mold growth. In daily life, reinforced flame retardant (non-flame retardant) polyester materials play a key role in the service life of materials due to the action of heat and ...
Claims
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IPC IPC(8): C08L67/00C08L67/02C08K13/04C08K7/14C08K13/02C08K3/30C08K5/13C08K5/524C08K13/06C08K9/06B29B9/06B29C47/92B29C48/92
CPCB29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885
Inventor 马宝海陈哲
Owner 东莞市东翔塑胶有限公司