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Halogen-free flame-retardant master batch for glass fiber reinforced nylon as well as preparation method and application of halogen-free flame-retardant master batch

A flame-retardant masterbatch and nylon technology, applied in the field of halogen-free flame-retardant masterbatch, can solve the problems of affecting the bonding effect of glass fiber and nylon resin, difficult to control the usage of glass fiber, and short length of glass fiber, etc., to achieve large porosity, The effect of reducing addition and reducing the cost of use

Active Publication Date: 2022-06-28
苏州御冠新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]In the existing technology, glass fiber reinforced nylon flame retardant masterbatch is mostly used, and the usage of glass fiber is difficult to control. This is because the length of glass fiber is short and the specific surface area is high. The unbalanced state tends to the adsorption state of polar molecules, which affects the bonding effect between glass fiber and nylon resin, so that the enhanced flame retardant effect is not obvious. , the flame retardant effect becomes worse, based on this, the present invention further improves the processing
[0005] CN109627758B in the Chinese patent literature is a kind of halogen-free flame-retardant glass fiber reinforced nylon, and the raw material composition includes: nylon 30-60%; glass fiber 20-20% 40%; halogen-free flame-retardant compound system 10-30%; among them, halogen-free flame-retardant compound system, by weight percentage, raw material composition includes: organic hypophosphite 60-85%; polyphosphate borate melamine salt 13- 35%; char-forming agent 2~8%; the structural formula of the melamine polyphosphate borate salt is shown in the following formula (I), in the formula, m is the molar ratio of melamine polyphosphate and boric acid two structural units, m=3~6; In this document, glass fiber is used to enhance the flame retardancy of nylon, but the fiber needle-like structure of the glass fiber of the present invention is easy to agglomerate, and the flame retardant effect becomes poor during the process of agglomeration.

Method used

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  • Halogen-free flame-retardant master batch for glass fiber reinforced nylon as well as preparation method and application of halogen-free flame-retardant master batch

Examples

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preparation example Construction

[0039] The preparation method of the interface guide agent is as follows:

[0040] S1: Put the bentonite into a hydrochloric acid solution with a mass fraction of 1-5% and soak it for 10-20min. drying to obtain active bentonite;

[0041] S2: add active bentonite to 2-3 times the mass fraction of 10% lanthanum chloride rare earth solution, then add 1-5% nonylphenol polyoxyethylene ether, 1-2% tetrabutyl titanate, 1-1.5% of isoeugenol, then add 10-20% of total active bentonite friction modifier, react at 70-80 ℃ temperature for 15-25min, the reaction speed is 500-1000r / min, the reaction is over, to obtain friction modified loaded bentonite;

[0042] S3: The friction-modified loaded bentonite is sent into 2-3 times of silane coupling agent KH560 for stirring and dispersing treatment. The stirring and dispersing time is 20-30min, and the stirring speed is 100-1000r / min. After stirring, wash with water and dry. , the interface director is obtained.

[0043] The halogen-free fla...

Embodiment 1

[0061] The halogen-free flame retardant masterbatch for glass fiber reinforced nylon of the present embodiment includes the following raw materials in parts by weight:

[0062] 40 parts of nylon 6, 10 parts of glass fiber, 4 parts of interface guide agent, 5 parts of graphene carrier, 6 parts of shell powder flame retardant, 1 part of lubricant;

[0063] The preparation method of the interface guide agent is as follows:

[0064] S1: put the bentonite into a hydrochloric acid solution with a mass fraction of 1% and soak it for 10 min, the soaking temperature is 45°C, and ultrasonically treated with 100W ultrasonic wave for 5 min.

[0065] S2: Add active bentonite to 2 times the mass fraction of 10% lanthanum chloride rare earth solution, then add 1% nonylphenol polyoxyethylene ether, 1% tetrabutyl titanate, 1% isoeugenol , and then add a friction modifier of 10% of the total active bentonite, react at a temperature of 70 ° C for 15 min, the reaction speed is 500 r / min, the rea...

Embodiment 2

[0083] The halogen-free flame retardant masterbatch for glass fiber reinforced nylon of the present embodiment includes the following raw materials in parts by weight:

[0084] 50 parts of nylon 6, 20 parts of glass fiber, 10 parts of interface guide agent, 11 parts of graphene carrier, 10 parts of shell powder flame retardant, 3 parts of lubricant;

[0085] The preparation method of the interface guide agent is as follows:

[0086] S1: put the bentonite into a hydrochloric acid solution with a mass fraction of 5% and soak for 20 minutes, the soaking temperature is 55 ° C, and ultrasonic waves of 300W are used for ultrasonic treatment, and the treatment is completed for 10 minutes. After the treatment, wash and dry to obtain active bentonite;

[0087] S2: Add active bentonite to 10% lanthanum chloride rare earth solution by 3 times, then add 5% nonylphenol polyoxyethylene ether, 2% tetrabutyl titanate, 1.5% isoeugenol , and then add a friction modifier with a total amount of ...

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Abstract

The halogen-free flame-retardant master batch is prepared from the following raw materials in parts by weight: 40 to 50 parts of nylon 6, 10 to 20 parts of glass fiber, 4 to 10 parts of interface guiding agent, 5 to 11 parts of graphene bearing agent, 1 to 3 parts of lubricating agent and 1 to 3 parts of flame retardant, wherein the flame retardant is prepared by mixing ammonium polyphosphate and tricresyl phosphate according to the weight ratio of 1 to 3. In the preparation of the halogen-free flame-retardant master batch, the flame-retardant master batch prepared by matching the nylon 6 and the glass fiber is adopted, the glass fiber has the effect of enhancing flame retardance, the flame retardant is added to improve the flame-retardant effect, and the interface guiding agent is added to achieve the effect of assisting flame retardance.

Description

technical field [0001] The invention relates to the technical field of halogen-free flame retardant masterbatch, in particular to a halogen-free flame retardant masterbatch for glass fiber reinforced nylon, a preparation method and application thereof. Background technique [0002] Nylon is a translucent or opaque milky white semi-crystalline resin. It has high rigidity and toughness in a wide temperature range, and its wear resistance, creep resistance and oil resistance are good, and it is widely used in many fields of society. In recent years, nylon has been widely used in electronics, electrical appliances, communications and other fields. The characteristics of components that are easy to accumulate heat and generate electric sparks make these fields have higher requirements for flame retardant materials, but nylon 6 has a low oxygen index. , easy to burn, so flame retardant modification is required. [0003] Glass fiber is an inorganic non-metallic material with exce...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K7/14C08K3/34C08K9/02C08K3/04C08K3/26C08K9/12C08K9/04C08K9/06C08K3/36C08J3/22C08J5/04
CPCC08J3/226C08J5/043C08J2477/02C08K7/14C08K3/346C08K9/02C08K3/042C08K2003/265C08K9/12C08K9/04C08K9/06C08K3/36C08K2201/011
Inventor 潘冠培拓旭
Owner 苏州御冠新材料科技有限公司
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