Thermoplastic elastomer resin composition and composite molded article
A technology of elastomer resin and resin composition, which is applied in the field of thermoplastic elastomer resin composition and composite molded body, can solve the problems of decreased bonding strength and insufficient bonding strength, and achieve high bonding force, formability and mechanical properties. Excellent properties and high thermal conductivity
Active Publication Date: 2016-08-24
DUPONT TORAY CO LTD
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- Abstract
- Description
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- Application Information
AI Technical Summary
Problems solved by technology
However, the elastomers used in these methods have the following problems: they cannot obtain sufficient joint strength, and in particular, the joint strength decreases after the durability test.
[0004] In addition, when a resin is used as an electronic component material, the resin has room for improvement not only in flexibility but also in heat dissipation.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1～9、 comparative example 1～9
[0109] The polyester block copolymer composition (X), the thermally conductive filler (D) and the antioxidant (E) were dry-blended at the compounding ratios shown in Table 1 and Table 2, using a The 2-screw extruder with the same screw was used to melt and knead the dry mixture at a temperature setting of 220°C and then granulate it. After drying the pellets at 80° C. for 5 hours, measurement tests of various characteristic values were performed. The measurement results are shown in Tables 1 and 2.
[0110] Table 1
[0111]
[0112] Table 2
[0113]
[0114] From the results of Tables 1 and 2, it can be seen that the thermoplastic elastomer resin composition of the embodiment shows high thermal conductivity, hardness, tensile strength at break, tensile 10% deformation stress, and tensile elongation at break are excellent, and it is excellent in combination with PBT High values were also shown in the joining force in resin co-injection, the joining force in hot pr...
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Abstract
The present invention provides a thermoplastic elastomer resin composition having high bonding strength for bonding different materials such as resins, metals and glass; having excellent moldability in injection molding etc., and mechanical properties; having high thermal conductivity; and being industrially advantageous in manufacturing. The present invention further provides a composite molded body in which the thermoplastic elastomer resin composition is used as a material for bonding different materials. The present invention pertains to a thermoplastic polyester elastomer resin composition characterized in that the main constituents are a hard segment (a1) comprising mainly crystalline aromatic polyester units, and a soft segment (a2) comprising mainly aliphatic polyether units and / or aliphatic polyester units; and further characterized by comprising 30 to 85 vol% of a polyester block copolymer composition (X) with a Shore D hardness of not more than 53D, and 15 to 70 vol% of a thermally conductive filler (D).
Description
technical field [0001] The present invention relates to a thermoplastic elastomer resin composition which has high joining force in joining different types of molded objects, is excellent in molding processability such as injection molding, has high thermal conductivity, and is industrially advantageous in production, and the thermoplastic elastomer resin composition. A composite molded product in which an elastomer resin composition is used as a joint material among different materials. Background technique [0002] In joining dissimilar materials, as a method of obtaining a composite body of resin and metal, a method of joining resins by injection molding to parts after surface treatment of metal parts has been proposed (for example, see Patent Document 1), However, since the specific surface treatment is required for the metal parts, the operation becomes complicated, which is inefficient and difficult to obtain stable joint strength. [0003] In addition, the following ...
Claims
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IPC IPC(8): C08L67/00B32B27/36C08K3/00C08K5/54C08L29/04C08L29/14C08L71/02
CPCB32B15/08B32B27/20B32B27/30B32B27/36B32B2270/00B32B2274/00B32B2307/302B32B2605/00C08K3/013C08K5/5435C08L29/04C08L67/025
Inventor 坂井秀敏山田洋辅植村裕司
Owner DUPONT TORAY CO LTD