Efficient enhanced flame-retardant heat-conducting shading multifunctional master batch for nylon direct injection molding and preparation method thereof

A technology of injection molding and functional masterbatch, which is applied in the field of high-efficiency enhanced flame-retardant, heat-conducting and light-shielding multifunctional masterbatch and its preparation, which can solve problems such as temperature mismatch and decrease in fiber aspect ratio, so as to improve modification efficiency and solve The effect of mutual loss of modified performance

CN109503969AActive Publication Date: 2019-03-22江苏万纳普新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-03-22

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Abstract

The invention belongs to the technical field of plastic modification and processing and especially relates to an efficient enhanced flame-retardant heat-conducting shading multifunctional master batchdirectly used for nylon direct injection molding and a preparation method thereof. The multifunctional master batch is composed of a master batch A and a master batch B, wherein the master batch A comprises the following components by weight percent: 50.0-60.0wt.% of glass fiber, 25.0-35.0wt.% of high-flow nylon resin, 5.0-10.0wt.% of maleic anhydride grafted ionomer, 3.0-8.0wt.% of star-shaped nylon 6 resin and 0.1-0.3wt.% of antioxidant. Compared with the traditional plastic functional master batch, the multifunctional master batch prepared according to the invention has the advantages thatmodified efficiency loss caused by mutual shearing abrasion of glass fiber and fire retardant as well as inorganic functional modified additive grains during the processing process can be avoided; the problem of mismatching processing temperatures of the two modified systems can be solved; compared with modified efficiency of a traditional enhanced bromine flame-retardant system, modified efficiency of the two modified systems is obviously promoted; the master batch has the characteristics of easiness in dispersing and processing and can be used for injection molding after direct simple mixing with nylon 6 resin at ratio.
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Description

technical field

[0001] The invention belongs to the technical field of plastic modification and processing, and in particular relates to a high-efficiency enhanced flame-retardant, heat-conducting, and light-shielding multifunctional masterbatch that can be directly applied to injection molding of nylon resin products and a preparation method thereof. Background technique

[0002] Using twin-screw extruder to implement melt blending is a traditional method for plastic modification. Using the high-efficiency and excellent mixing performance of co-rotating twin-screw extruders, thermoplastics and various modified additives can be continuously melt-blended and extruded After granulation, the prepared modified special material will be used again for injection or extrusion processing to form various products. This technical route not only effectively improves the physical and mechanical properties of plastic products such as strength, toughness, stiffness, creep resistance, and f...

Examples

Embodiment 1

[0034] A high-efficiency enhanced flame-retardant, heat-conducting, and light-shielding functional masterbatch for direct injection molding of nylon resin, which is composed of two masterbatches, A and B, and the mass ratio of raw materials for the A masterbatch is as follows:

[0035] glass fiber

60.0kg

High Flow Nylon 6

25.0kg

Four-arm star nylon 6

6.0kg

Maleic anhydride grafted sodium ion crosslinked ethylene-octene-acrylic acid copolymer elastic ionomer

8.7kg

antioxidant

300.0g

[0036] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name Antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0037] The mass ratio of the raw materials of the B masterbatch is as follows:

[0038] brominated polystyrene

55.0kg

Antimony trioxide

10.0kg

boron nitri...

Embodiment 2

[0042] A high-efficiency enhanced flame-retardant, heat-conducting, and light-shielding functional masterbatch for direct injection molding of nylon resin, which is composed of two masterbatches, A and B, and the mass ratio of raw materials for the A masterbatch is as follows:

[0043] glass fiber

50.0kg

High Flow Nylon 66

35.0kg

Three-arm star nylon 6

4.7kg

Maleic anhydride grafted with zinc ions to crosslink ethylene-octene-acrylic acid copolymer elastic ionomer

10.0kg

antioxidant

300.0g

[0044] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name Antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0045] The mass ratio of the raw materials of the B masterbatch is as follows:

[0046] brominated polystyrene

25.0kg

Decabromodiphenylethane

19.0kg

...

Embodiment 3

[0050] A high-efficiency enhanced flame-retardant, heat-conducting, and light-shielding functional masterbatch for direct injection molding of nylon resin, which is composed of two masterbatches, A and B, and the mass ratio of raw materials for the A masterbatch is as follows:

[0051] glass fiber

55.0kg

High Flow Nylon 610

30.0kg

Three-arm star nylon 6

6kg

Maleic anhydride grafted barium ion crosslinked ethylene-octene-acrylic acid copolymer elastic ionomer

8.7kg

antioxidant

300.0g

[0052] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name Antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0053] The mass ratio of the raw materials of the B masterbatch is as follows:

[0054] brominated polystyrene

25.0kg

brominated epoxy resin

25.0kg

Antim...