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Environmentally friendly flame retardant injection molding grade ACS modified material and preparation method thereof

A modified material and injection molding technology, which is applied in the field of polymers, can solve the problems of environmental protection and thermal stability, can not be used for injection molding, and chlorides are easy to decompose, so as to achieve good performance and appearance, and reduce the use of Quantity, performance does not decompose the effect

Active Publication Date: 2021-02-02
青岛海纳新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For traditional flame retardant ACS modified materials, the stabilizers used in the preparation process cannot have both environmental protection and thermal stability. Chlorides are easy to decompose during processing, yellowing is obvious, and the above problems cannot be used for injection molding. The invention provides an environmentally friendly flame retardant injection molding grade ACS modified material and its preparation method. Neoprene rubber is used instead of polyvinyl chloride, which not only plays a role in flame retardancy, but also plays a role in toughening. It uses an environmentally friendly compound special stabilizer , not only can meet the environmental protection requirements of REACH and RoHS, but also has a very good thermal stability effect, is not easy to decompose, and can be used for injection molding. It is a new type of ACS modified material

Method used

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  • Environmentally friendly flame retardant injection molding grade ACS modified material and preparation method thereof
  • Environmentally friendly flame retardant injection molding grade ACS modified material and preparation method thereof
  • Environmentally friendly flame retardant injection molding grade ACS modified material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 High flame retardant grade modified material

[0023] Formula: AS resin 60kg; neoprene CR122 30kg; decabromodiphenylethane 8kg, antimony trioxide 4kg, lubricant EBS 0.5kg; environment-friendly compound special stabilizer 1.5kg; antioxidant (1010) 0.1kg ; Antioxidant (168) 0.2kg; Toughening agent MABS2628 5kg.

[0024] Mix the above neoprene CR122 with decabromodiphenylethane, antimony trioxide, lubricant, heat stabilizer, all antioxidants and tougheners in a high-mix pot at 600 rpm at room temperature for 5 minutes, then transfer to a two-stage Plasticized in the single screw of the extruder, AS resin is plasticized by the twin screw, fully blended and plasticized in the middle section of the twin screw, the extruded material is dried in a blower drying oven at 90 ℃ for 2-4 hours, and then injection molded to prepare the test sample strip. preparation process such as figure 1 shown.

[0025] Table 1 Extrusion process parameters of Example 1

[0026]

Embodiment 2

[0027] Example 2 High flow grade flame retardant material

[0028] Formula: AS resin 55kg; chloroprene rubber 232 30kg; tetrabromobisphenol A 10kg, antimony trioxide 4.5kg, lubricant EBS 0.5kg; environment-friendly compound special stabilizer 2.5kg; antioxidant (1010) 0.1kg; Antioxidant (168) 0.2kg; toughening agent MABS2628 5kg.

[0029] Mix the above chloroprene rubber 232 and tetrabromobisphenol A, antimony trioxide, lubricant, environment-friendly compound special stabilizer, all antioxidants and toughening agents in a high-mixing pot at 600 rpm at room temperature for 5 minutes, and then transfer. Plasticized in the single screw of the double-stage extruder, AS is plasticized by the twin-screw, fully blended and plasticized in the middle of the twin-screw, the extruded material is dried in a blower drying oven at 90 ℃ for 2-4 hours, and then prepared by injection molding Test splines.

[0030] Table 2 Extrusion process parameters of Example 2

[0031]

Embodiment 3

[0032] Example 3 High impact flame retardant material

[0033] Formula: AS resin 65kg; Neoprene CR2441 25kg; Bromotriazine 10kg, Antimony trioxide 4.5kg, Lubricant 0.5kg; Environmentally friendly compound special stabilizer 3kg; Antioxidant (1010) 0.1kg; Antioxidant Agent (168) 0.2kg; toughening agent MABS2628 5kg.

[0034] Mix the above-mentioned chloroprene rubber with bromotriazine, antimony trioxide, lubricant, environment-friendly compound special stabilizer, all antioxidants, and toughening agents in a high-mixing pot at 600 rmp at room temperature for 5 minutes, and then transfer to a double boiler. Plasticized in the single screw of the extruder, AS is plasticized by the twin screw, fully blended and plasticized in the middle section of the twin screw, the extruded material is dried in a blower drying oven at 90 ℃ for 2-4 hours, and then injection molded to prepare the test sample strip.

[0035] The extrusion process parameters of table 3 embodiment 3

[0036]

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Abstract

The invention relates to an environmentally friendly flame-retardant injection molding grade ACS modified material, which comprises the following raw material components in parts by weight: 45-65 parts of acrylonitrile-styrene copolymer; 15-35 parts of chloroprene rubber; brominated flame-retardant 8-12 parts of antimony flame retardant; 3-5 parts of antimony flame retardant; 0.2-1 part of lubricant; 0.1-1 part of antioxidant; 1-3 parts of environmentally friendly composite stabilizer; 3-6 parts of toughening agent Described environment-friendly composite special stabilizer is (35-45) according to mass ratio by calcium stearate, zinc stearate, magnesium hydroxide, hydrotalcite, antioxidant: (35-45): (6-12 ): (3-8): (3-8) ratio composition. The above-mentioned ACS modified material uses chloroprene rubber instead of polyvinyl chloride, which not only plays a role in flame retardancy, but also plays a role in toughening. The use of environmentally friendly compound special stabilizers not only meets the environmental protection requirements of REAH and RoHS, but also has very good performance. Excellent heat stabilization effect, not easy to decompose, can be used for injection molding.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to an environment-friendly flame-retardant injection-molding grade ACS modified material and a preparation method thereof. Background technique [0002] Acrylonitrile-styrene copolymer (AS resin) is a synthetic resin formed by copolymerizing two monomers of acrylonitrile (AN) and styrene (ST). It has good mechanical properties and processing properties, but is brittle. It is large and flammable, which limits its application range and usually needs to be modified before use. The current modification method includes copolymerization / blending modification with chlorinated polyethylene to obtain acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS) plastic alloy. The aging resistance and flame retardancy of the ACS modified material All have improved, but the shortcomings are obvious: First, the flame retardant ACS modified material needs to be processed in two steps, the fir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/12C08L11/00C08L25/06C08L63/00C08K13/02C08K3/22C08K5/03C08K5/20C08K5/136C08K5/3492
CPCC08L25/12C08L2201/02C08L2201/08C08L2205/02C08L2205/03C08L2205/035C08L2205/06C08L11/00C08K13/02C08K3/2279C08K5/03C08K5/20C08K5/136C08K5/3492C08L25/06C08L63/00
Inventor 赵光发单联滨谭伟宏张秀文李伟高斌王妮李建敏
Owner 青岛海纳新材料有限公司
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