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Two-color injection molding composite material for wall switch panel

A two-color injection molding and composite material technology, which is applied in the field of composite materials, can solve the problems of non-flame retardant, heat resistance, fracture, and poor material, and achieve the effect of excellent heat resistance

Active Publication Date: 2019-02-12
NINGBO BULL ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of material has good texture and good fluidity, but the material is not flame retardant and has poor heat resistance
[0003] The patent of 201010117394.0 discloses the two-color injection molding composite material of PMMA (outer layer) / PMMA+ABS (inner layer) for electrical casings, but its flame retardancy and heat resistance cannot meet the safety requirements of electrical products, and the impact toughness of the material is relatively low. Poor, easy to break the buckle assembly

Method used

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  • Two-color injection molding composite material for wall switch panel
  • Two-color injection molding composite material for wall switch panel
  • Two-color injection molding composite material for wall switch panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0028] A two-color injection molding composite material for a wall switch panel, the two-color injection molding composite material is a two-layer composite structure, including a transparent PC outer layer 1 and an opaque PC / ABS inner layer 2 ( figure 1 ), the weight ratio of each raw material component of the PC / ABS inner layer is: 55-65 parts of PC, 15-25 parts of ABS, 4-7 parts of flame retardant, 3-7 parts of flow modifier, flash 1-3 parts of powder, 3-5 parts of compatibilizer, 3-5 parts of toughening modifier, 0.5-2 parts of toner dispersant, 0.1-0.5 parts of toner, 0.4-0.7 parts of injection molding improvement additive, 0.1-0.3 parts of UV additives, 0.1-0.3 parts of antioxidants.

[0029] Specific implementation:

Embodiment 1

[0031] Such as figure 1 As shown, the two-color injection molding composite material includes a transparent PC outer layer 1 and an opaque PC / ABS inner layer 2 . The distribution ratio of the two components of the inner layer is: PC 60kg, ABS 19kg, flame retardant 5kg, flow modifier 5kg, flash powder 2kg, compatibilizer 4.7kg, toughening modifier 3kg, toner dispersant 0.5kg , 0.1kg of toner, 0.5kg of injection molding improvement additives, 0.1kg of anti-UV additives, and 0.1kg of antioxidants.

[0032] The proportions of the various components in this embodiment are the preferred proportions in the interval. The preferred reason is that when the conversion of PC accounts for 60%, the fluidity, heat resistance, strength and flame retardancy of the material reach the best balance, and the PC content When the ratio is higher than this, it is necessary to add more fluidity improving additives and reduce the content of ABS. Excessive addition of fluidity improving additives will ...

Embodiment 2

[0051] Such as figure 1 As shown, the two-color injection molding composite material includes a transparent PC outer layer 1 and an opaque PC / ABS inner layer 2 . The composition ratio of the opaque inner layer is: PC 60kg, ABS 19kg, flame retardant 5kg, flow modifier 5kg, flash powder 2kg; compatibilizer 4.7kg, toughening modifier 3kg, toner dispersant 0.5kg , Toner 0.1kg, injection molding improvement additive 0.5kg, anti-UV additive 0.1kg, antioxidant 0.1kg.

[0052] The proportions of the various components in this embodiment are interval preferred proportions, the proportions are exactly the same as in Example 1, and the reasons for the preference are also exactly the same, and will not be repeated.

[0053] The detailed composition or the brand description of various components in this embodiment are as follows:

[0054] PC is high heat resistance and high fluidity PC grade S-3000VR

[0055] ABS is a high heat-resistant grade; ABS 747

[0056] The flash powder is: met...

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Abstract

The invention discloses a two-color injection-moulded composite material for a wall switch panel. The two-color injection-moulded composite material adopts a two-layer composite structure, and comprises a transparent PC outer layer and a nontransparent PC / ABS inner layer, wherein the PC / ABS inner layer comprises the following components as raw materials in parts by weight: 55-65 parts of PC, 15-25 parts of ABS, 4-7 parts of a fire retardant, 3-7 parts of a fluidity modifier, 1-3 parts of shimmering powder, 3-5 parts of a compatilizer, 3-5 parts of a toughening modifier, 0.5-2 parts of a toner dispersant, 0.1-0.5 part of a toner, 0.4-0.7 part of an injection moulding improving auxiliary agent, 0.1-0.3 part of an anti-UV auxiliary agent, and 0.1-0.3 part of an antioxidant. The two-color injection-moulded composite material has good texture, good fluidity and relatively good strength, flame retardance, heat resistance and yellowing resistance, and can also achieve the pearl effect of the fine shimmering powder in the case of high fluidity.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a two-color injection molding composite material for a wall switch panel. Background technique [0002] Home appliance companies such as Samsung Electronics, Hisense Electric, and TCL have gradually launched two-color injection molding LCD TV decorative front shells and air-conditioning decorative panels in the past few years. The strong visual impact formed by the perfect combination of unique transparency and other colors has become popular all over the world. The Consumer Electronics Show (CES) and other exhibitions frequently attract the attention of consumers and competitors, and become an important means of decoration to improve the appearance of home appliances. The key to realizing this technology is the two-color injection molding material technology. The mainstream material scheme of two-color injection molding used in the home appliance industry is PMMA (o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L51/04C08L25/12C08L67/02C08L63/00C08K13/02C08K5/523C08K3/08C08K3/22C08K3/34B32B27/08B32B27/36B32B27/30B32B27/20
CPCB32B27/08B32B27/20B32B27/306B32B27/365B32B2307/3065C08L69/00C08L2201/02C08L2201/08C08L2203/20C08L2205/025C08L2205/035C08L2205/06C08L2205/08C08L55/02C08L51/04C08L63/00C08L67/02C08K13/02C08K2003/0812C08K2003/2241C08L25/12C08K5/523C08K5/103C08K3/34
Inventor 何洋申会员王柏霖邵景昌
Owner NINGBO BULL ELECTRIC CO LTD
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