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PC instrument panel and preparation method thereof

A technology of instrument panel and coupling agent, applied in the field of PC instrument panel and its preparation, can solve the problems of PC instrument panel bending strength, Young's modulus stretching and low light transmittance

Inactive Publication Date: 2015-09-02
苏州市德莱尔建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the above technical problems, the present application provides a PC dashboard and its preparation method, which solves the technical problems of existing PC dashboards such as low bending strength, Young's modulus, stretching and light transmittance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 100 parts of PC; 2 parts of LDPE; 1 part of UHMWPE; 5 parts of polyethylene glycol; 1 part of HDPE; 30 parts of glass fiber; 0.1 part of ABS-g-MAH; 10 parts of GF; 0.3 parts of silane coupling agent; 1 part of EVA; 25 parts of PET; 12 parts of acrylate; 20 parts of ABS.

[0024] After the glass fiber is dried at 120°C for 2 hours, it is treated with a coupling agent, then dried at 110°C for 2 hours, PC is dried at 110°C for 20 hours, MBS is dried at 80°C for 8 hours, PC, LDPE, UHMWPE, polyethylene glycol and HDPE was put into the reactor and heated to 40°C, and stirred for 25 minutes.

[0025] Add the remaining raw materials, raise the temperature to 80°C, stir for 30 minutes, put the mixed material into the twin-screw extruder for extrusion, the barrel temperature is 220°C, 235°C, 240°C, 255°C, 260°C, 275°C and 280°C , screw speed 540r / min, injection molding after drying.

[0026] Light transmittance 85%, tensile strength 120MPa; bending strength 170MPa, notche...

Embodiment 2

[0028] Weigh 100 parts of PC according to the weight ratio; 8 parts of LDPE; 10 parts of UHMWPE; 25 parts of polyethylene glycol; 5 parts of HDPE; 50 parts of glass fiber; 0.5 parts of ABS-g-MAH; 30 parts of GF; 0.7 parts of silane coupling agent; 20 parts of EVA; 45 parts of PET; 18 parts of acrylate; 40 parts of ABS.

[0029] After the glass fiber is dried at 140°C for 3 hours, it is treated with a coupling agent, then dried at 130°C for 2 hours, PC is dried at 130°C for 25 hours, MBS is dried at 100°C for 10 hours, PC, LDPE, UHMWPE, polyethylene glycol and HDPE was put into the reactor and heated to 60°C, and stirred for 35 minutes.

[0030] Add the remaining raw materials, raise the temperature to 90°C, stir for 50 minutes, put the mixed material into the twin-screw extruder for extrusion, the barrel temperature is 220°C, 235°C, 240°C, 255°C, 260°C, 275°C and 280°C , screw speed 540r / min, injection molding after drying.

[0031] Light transmittance 85%, tensile strength ...

Embodiment 3

[0033] Weigh 100 parts of PC according to the weight ratio; 4 parts of LDPE; 2 parts of UHMWPE; 10 parts of polyethylene glycol; 2 parts of HDPE; 35 parts of glass fiber; 0.2 parts of ABS-g-MAH; 0.4 parts of silane coupling agent; 5 parts of EVA; 30 parts of PET; 13 parts of acrylate; 25 parts of ABS.

[0034] After the glass fiber is dried at 120°C for 2 hours, it is treated with a coupling agent, then dried at 110°C for 2 hours, PC is dried at 110°C for 20 hours, MBS is dried at 80°C for 8 hours, PC, LDPE, UHMWPE, polyethylene glycol and HDPE was put into the reactor and heated to 40°C, and stirred for 25 minutes.

[0035] Add the remaining raw materials, raise the temperature to 90°C, stir for 50 minutes, put the mixed material into the twin-screw extruder for extrusion, the barrel temperature is 220°C, 235°C, 240°C, 255°C, 260°C, 275°C and 280°C , screw speed 540r / min, injection molding after drying.

[0036] Light transmittance 90%, tensile strength 130MPa; bending stre...

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Abstract

The application discloses a PC instrument panel and its preparation method. The preparation method comprises the following steps: weighing (by weight) PC, LDPE, UHMWPE, polyethylene glycol, HDPE, glass fibre, a compatilizer, GF, MBS, styrene-butadiene rubber, a coupling agent, EVA, PET, acrylic acid ester and ABS, drying, extruding, pulling pieces, granulating, and carrying out injection molding. The product is characterized in that light transmittance is 85-95%; tensile strength is 120-140 MPa; bending strength is 170-190 MPa; notch impact strength is 75-95 kJ / m<2>; young modulus is 6.5-7.5 GPa; elongation at break is 80-100%; and vicat softening point is 125-145 DEG C.

Description

technical field [0001] The application belongs to the field of instrument panel preparation technology, in particular to a PC instrument panel and a preparation method thereof. Background technique [0002] The instrument panel is located directly in front of the driver, and is generally equipped with odometer, speedometer, engine tachometer, fuel gauge, warning lights and other light signal indicators on it. The instrument panel can be divided into non-airbag instrument panel and airbag instrument panel (for the co-pilot) according to safety. At present, only a small number of mid-to-high-end cars in China are equipped with airbag dashboards. As people pay more attention to safety, customers have increased demand for airbag dashboards, and OEMs also take this as one of their buying points. When the airbag deploys, while protecting passengers, it may also injure passengers, especially children. Therefore, the instrument panel airbags of some new models in the world have be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L23/06C08L71/08C08L51/04C08L9/06C08L23/08C08L67/02C08L55/02C08K9/06C08K9/04C08K7/14C08K5/101B29C47/92B29C48/92
CPCC08L69/00B29C48/92B29C2948/92209C08L2205/02C08L2205/025C08L2205/035C08L23/06C08L71/02C08L51/04C08L51/00C08L9/06C08L23/0853C08L67/02C08L55/02C08K9/06C08K9/04C08K7/14C08K5/101
Inventor 计慷
Owner 苏州市德莱尔建材科技有限公司
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