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PBT material and preparation method thereof

A technology of raw materials and antioxidants, applied in the field of PBT materials and their preparation, can solve the problems of mechanical strength not meeting the requirements for use, poor hydrolysis resistance, insufficient PBT toughness, etc. Effects of aging properties

Inactive Publication Date: 2017-09-29
XINJIANG BLUE RIDGE TUNHE POLYESTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a kind of PBT material, this PBT material does not affect its mechanical strength while solving the problem of insufficient toughness of PBT, and strengthens its mechanical property, solves that after existing PBT resin is toughened, its mechanical strength cannot reach Technical problems of use requirements and poor hydrolysis resistance

Method used

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  • PBT material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Raw material and its weight percentage:

[0058] Polybutylene terephthalate: 55kg, (55%);

[0059] Polyetherester thermoplastic elastomer: 35kg, (35%);

[0060] Calcium carbonate: 1.0kg, (1%);

[0061] 1,4-Butanediol: 2.0kg, (2%);

[0062] Antioxidant 1010: 1.5kg, (1.5%);

[0063] Dicumyl peroxide: 1.0kg, (1%);

[0064] Glycerol: 2.0kg, (2%);

[0065] Triphenyl phosphite: 1.5kg, (1.5%);

[0066] Polycarbodiimide: 1.0 kg, (1%).

[0067] The specific steps are:

[0068] (1) Weigh 55 kg of polybutylene terephthalate, 35 kg of polyether ester thermoplastic elastomer, 1.0 kg of calcium carbonate, 2.0 kg of 1,4-butanediol, 1.0 kg of dicumyl peroxide, and propylene glycol. Alcohol 2.0kg, triphenyl phosphite 1.5kg, polycarbodiimide 1.0kg and 1.5kg antioxidant 1010, add these raw materials into a high-speed mixer and stir until they are evenly mixed to obtain a mixture;

[0069] (2) The mixture is sent to a twin-screw extruder for melting, mixing, and extrusion. The temperature of the extruder ...

Embodiment 2

[0072] Raw material and its weight percentage:

[0073] Polybutylene terephthalate: 75kg, (75%);

[0074] Polyetherester thermoplastic elastomer: 15kg, (15%);

[0075] Calcium carbonate: 0.8kg, (0.8%);

[0076] 1,4-Butanediol: 3.0kg, (3%);

[0077] Antioxidant 1010: 1.0kg, (1%);

[0078] Dicumyl peroxide: 0.5kg, (0.5%);

[0079] Glycerol: 4.0kg, (4%);

[0080] Triphenyl phosphite: 0.5kg, (0.5%);

[0081] Polycarbodiimide: 0.2kg, (0.2%).

[0082] The specific steps are:

[0083] (1) Weigh 75 kg of polybutylene terephthalate, 15 kg of polyether ester thermoplastic elastomer, 0.8 kg of calcium carbonate, 3.0 kg of 1,4-butanediol, 0.5 kg of dicumyl peroxide, and propylene glycol. 4.0 kg of alcohol, 0.5 kg of triphenyl phosphite, 0.2 kg of polycarbodiimide and 1.0 kg of antioxidant 1010, add these raw materials to a high-speed mixer and stir until they are uniformly mixed to obtain a mixture;

[0084] (2) The mixture is sent to a twin-screw extruder for melting, mixing, and extrusion. The temperat...

Embodiment 3

[0087] Raw material and its weight percentage:

[0088] Polybutylene terephthalate: 72kg, (72%);

[0089] Polyetherester thermoplastic elastomer: 18kg, (18%);

[0090] Calcium carbonate: 0.5kg, (0.5%);

[0091] 1,4-Butanediol: 4.0kg, (4%);

[0092] Antioxidant 1010: 1.5kg, (1.5%);

[0093] Dicumyl peroxide: 1.3kg, (1.3%);

[0094] Glycerol: 2.0kg, (2%);

[0095] Triphenyl phosphite: 0.4kg, (0.4%);

[0096] Polycarbodiimide: 0.3 kg, (0.3%).

[0097] The specific steps are:

[0098] (1) Weigh 72 kg of polybutylene terephthalate, 18 kg of polyether ester thermoplastic elastomer, 0.5 kg of calcium carbonate, 4.0 kg of 1,4-butanediol, 1.3 kg of dicumyl peroxide, and propylene glycol. Alcohol 2.0kg, triphenyl phosphite 0.4kg, polycarbodiimide 0.3kg and 1.5kg antioxidant 1010, add these raw materials into a high-speed mixer and stir until they are evenly mixed to obtain a mixture;

[0099] (2) The mixture is sent to a twin-screw extruder for melting, mixing, and extrusion. The temperature of the ext...

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Abstract

The invention relates to a PBT material and a preparation method thereof, belonging to the technical field of high polymer materials. The PBT material comprises the following raw materials by weight: 55 to 75% of polybutylene telephthalate, 15 to 35% of TPEE, 0.2 to 1.0% of calcium carbonate, 2.0 to 5.0% of 1,4-butylene glycol, 0.5 to 2.0% of an anti-oxidant, 0.5 to 3.0% of dicumyl peroxide, 2.0 to 5.0% of a cross-linking agent, 0.2 to 1.5% of a light stabilizing agent and 0.2 to 1.0% of an anti-hydrolysis agent. The invention also discloses the preparation method for the PBT material. According to the invention, TPEE and the anti-oxidant 1010 are used for the PBT material, so the prepared PBT material has good elasticity and improved impact strength, toughness and ageing resistance, and thus, the PBT material has more excellent mechanical and machining properties, enables a product to have prolonged service life and better stability and is widened in the application scope; the PBT material and the preparation method overcome the technical problem that the mechanical strength of conventional PBT resin cannot meet usage requirements after toughening; and the preparation method is simple in process and easy to realize industrial production.

Description

Technical field [0001] The invention belongs to the technical field of polymer materials, and specifically relates to a PBT material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate, PBT for short, is the most important thermoplastic polyester polymer material and one of the five general engineering plastics. Due to its excellent mechanical properties and processing properties, it is used in automobiles, machinery and equipment, and precision instruments. Parts, electronic appliances, textiles and other fields are widely used. [0003] PBT resin is a semi-crystalline polymer with the ability to quickly crystallize. Its solid phase is a mixture of ordered spherulites and amorphous regions. This two-phase characteristic is compatible with such as ABS and polystyrene. Compared with amorphous resins such as ethylene, it has higher strength, hardness, surface hardness and rigidity. The glass transition temperature of the amorphous region gives...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L67/00C08L79/00C08K13/02C08K3/26C08K5/053C08K5/14C08K5/134
CPCC08L67/02C08K2003/265C08L2201/08C08L2205/02C08L2205/03C08L2207/04C08L67/00C08L79/00C08K13/02C08K3/26C08K5/053C08K5/14C08K5/1345
Inventor 王昊君冒爱民徐东郭志成刘江斌王丽娟
Owner XINJIANG BLUE RIDGE TUNHE POLYESTER CO LTD
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