Low-smell plastic molding automobile instrument panel material and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology for automobile instrument panel and low odor, which is applied in the field of spray plastic material and its preparation, and the field of spray molding automobile instrument panel material. problem, to achieve the effect of good surface performance and excellent wear resistance
Active Publication Date: 2018-07-20
BOMEX CHEM SHANGHAI
View PDF5 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0005] Patent CN 105820303 A uses highly branched and high hydroxyl value polyester polyols to prepare polyurethane instrument panels, and then highly branched and high hydroxyl value polyester polyols have high viscosity, which is not conducive to the processing and production of instrument panels, and polyester polyurethane The hydrolysis resistance of the material is poor; the patent CN 101591420 B has prepared the instrument panel material by using polyether polyol, but, during the spraying process, the instrument panel material has different directions and angles, which is prone to sagging, and over The use of multiple catalysts can affect the performance of the material
Moreover, the elongation at break of the material in this patent is too high, which is not conducive to the effective blasting of the airbag when the car encounters an accident, and cannot effectively protect the occupants.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0040] The parts mentioned in the following examples all refer to parts by weight.
[0041] The following technical indicators are evaluated for the sprayed polyurethane instrument panel obtained in each of the following embodiments. Surface properties: abrasion resistance, solvent resistance (petroleum ether, alcohol, ammonia detergent, surfactant),
[0042] High temperature color fastness;
[0043] Mechanical properties: tensile strength, elongation at break;
[0046] The above tests are carried out in accordance with the German Volkswagen Standard TL52296 and its referenced standards.
[0047] The following components are used in the examples of this application:
[0048] Water-based two-component in-mold paint
[0049] Wherein, preferred formula comprise...
Embodiment 3
[0078] The formula of table 1 embodiment 1-3
[0079]
[0080] Samples were prepared according to the formulations of Examples 1-3 in Table 1. For each sample, each test was repeated three times, and the average value was obtained.
[0081] The abrasion resistance performance of table 2 embodiment 1-3 abrasion resistance performance
[0085] The emitting performance of table 4 embodiment 1-3
[0086] Example
Example 1
Example 2
Example 3
Condensed mg
0.49
0.50
0.48
Formal...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Property
Measurement
Unit
thickness
aaaaa
aaaaa
Functional group degree
aaaaa
aaaaa
Login to view more
Abstract
The invention discloses a low-smell plastic molding automobile instrument panel material and a preparation method thereof. The plastic molding automobile instrument panel material comprises two layers, wherein the surface layer is a hydrophobic double-component in-mould paint layer which is capable of forming a film with certain thickness by the reaction of a hydrophobic polyurethane dispersion and an aliphatic curing agent; the film is 10-100 microns in thickness; the inner layer is a polyurethane layer which is formed by polymerizing amino polyether, polyether polyol, a chain extender, a crosslinking agent, a catalyst and the like with an isocyanate compound; the polyurethane layer is 0.5-5mm in thickness. When being used for preparing an instrument board, and particularly the parts, indifferent directions, of the instrument board, the material can be quickly cured, so that the flowing hanging problem can be avoided. Additionally, the instrument board prepared through the abovementioned material is reasonable in mechanical performance, and outstanding in surface performance and ageing resistance; the problem of explosion and breaking of a safety airbag of the vehicle in an accident can be reduced, and the safety of the vehicle is improved. The invention also discloses a preparation method of the instrument board material.
Description
technical field [0001] The invention relates to a plastic spraying material and a preparation method thereof, in particular to a low-odor spray molding automobile instrument panel material and a preparation method thereof. [0002] The invention relates to a plastic-sprayed automotive instrument panel material, the surface layer of which is a water-based two-component in-mold paint. While further improving the odor and VOC of the automotive interior material, the instrument panel is endowed with excellent surface properties, including wear resistance, and Solvent and weather resistance. Its inner layer is a polyurethane layer, which is formed by reacting a composition with polyether polyol as the main component and an aromatic isocyanate compound. The composition with polyether polyol as the main component contains amino polyether with extremely high activity , to improve the sag problem of sprayed polyurethane in the spraying process, or the problem of material performance d...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more