Environment-friendly, flame-retardant and injection-molding-grade ACS modified material

A modified material, injection molding grade technology, applied in the polymer field, can solve the problems of environmental protection and thermal stability, can not be used in injection molding, easy decomposition of chlorides, etc., to achieve good performance and appearance, reduce the use of The effect of not decomposing quantity and performance

Active Publication Date: 2018-09-14
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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  • Environment-friendly, flame-retardant and injection-molding-grade ACS modified material
  • Environment-friendly, flame-retardant and injection-molding-grade ACS modified material
  • Environment-friendly, flame-retardant and injection-molding-grade ACS modified material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 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 stabilizer 1.5kg; antioxidant (1010) 0.1kg ; Antioxidant (168) 0.2kg; Toughening agent MABS2628 5kg.

[0024] Mix the above-mentioned neoprene CR122 with decabromodiphenylethane, antimony trioxide, lubricant, heat stabilizer, all antioxidants and tougheners in a high-mixing pot at 600rpm at room temperature for 5 minutes, then transfer to the two-stage Plasticize in the single-screw of the extruder, plasticize the AS resin through the twin-screw, fully blend and plasticize in the middle of the twin-screw, and dry the extruded material in a blower drying oven at 90°C for 2-4 hours, and then injection molding to prepare test samples strip. The preparation process is as figure 1 shown.

[0025] The extrusion process parameter of table 1 embodiment 1

[0026...

Embodiment 2

[0027] Embodiment 2 high flow grade flame retardant material

[0028] Formula: AS resin 55kg; Neoprene 232 30kg; tetrabromobisphenol A10kg, 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-mentioned chloroprene rubber 232 with tetrabromobisphenol A, antimony trioxide, lubricant, environment-friendly composite stabilizer, all antioxidants and toughening agents in a high mixing pot at 600rpm at room temperature for 5 minutes, then transfer Plasticize in the single screw of the two-stage extruder, AS is plasticized by the twin screw, fully blended and plasticized in the middle of the twin screw, and the extruded material is dried in a blower drying oven at 90°C for 2-4 hours, and then prepared by injection molding Test splines.

[0030] The extrusion process parameter of table 2 embodiment 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; environment-friendly compound 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 composite special stabilizer, all antioxidants and toughening agents in a high mixing pot at 600rmp room temperature for 5 minutes, then transfer to double The AS is plasticized in the single-screw of the extruder, and the AS is plasticized by the twin-screw, fully blended and plasticized in the middle of the twin-screw, and the extruded material is dried in a blower drying oven at 90°C for 2-4 hours, and then injection-molded to prepare the test sample strip.

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

[0036]

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Abstract

The invention relates to an environment-friendly, flame-retardant and injection-molding-grade ACS modified material. The environment-friendly, flame-retardant and injection-molding-grade ACS modifiedmaterial comprises, by weight, 45-65 parts of acrylonitrile-styrene copolymer, 15-35 parts of neoprene, 8-12 parts of brominated flame retardant, 3-5 parts of antimonic flame retardant, 0.2-1 part oflubricant, 0.1-1 part of antioxidant, 1-3 parts of environment-friendly compound special stabilizer and 3-6 parts of toughening agent, wherein the environment-friendly compound special stabilizer is prepared by calcium stearate, zinc stearate, magnesium hydroxide, hydrotalcite and an anti-aging agent according to the mass ratio of (35-45):(35-45):(6-12):(3-8):(3-8). The environment-friendly, flame-retardant and injection-molding-grade ACS modified material has the advantages that by using the neoprene to replace polyvinyl chloride, flame retardance is achieved while a toughening effect is achieved; the environment-friendly compound special stabilizer can meet REAH and RoHS environment protection requirements and are quite good in thermal stability, less prone to decomposition and applicable to injection molding.

Description

technical field [0001] The invention relates to the technical field of macromolecules, in particular to an environmentally 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 very 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 Both have been improved, but the disadvantages are obvious: First, the flame-retardant ACS modified material needs to be processed ...

Claims

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Application Information

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Patent Type & Authority Applications(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 单联滨赵光发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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