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Composite halogen-free flame-retardant smoke suppression agent of PVC wood-plastic composite material and preparation method and application of agent

A wood-plastic composite material and composite halogen-free technology, which is applied in the field of flame retardant and smoke suppressant, can solve the problems of poor flame retardant and smoke suppression effects, harmful environment and people's health, and large addition of flame retardant and smoke suppressant, etc. Low cost, little impact on machining performance, and good dimensional stability

Inactive Publication Date: 2016-05-11
白晓艳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention aims to solve the problem that PVC wood-plastic composite materials are combustible, a large amount of dense smoke is generated by combustion, the existing PVC wood-plastic composite materials have a large amount of flame-retardant and smoke-suppressing agents, poor flame-retardant and smoke-suppressing effects, and the existing halogen-based flame retardants, Lead salt flame retardants and other harmful problems to the environment and people's health, provide a PVC wood-plastic composite material composite halogen-free flame retardant smoke suppressant and its preparation method and application

Method used

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  • Composite halogen-free flame-retardant smoke suppression agent of PVC wood-plastic composite material and preparation method and application of agent
  • Composite halogen-free flame-retardant smoke suppression agent of PVC wood-plastic composite material and preparation method and application of agent
  • Composite halogen-free flame-retardant smoke suppression agent of PVC wood-plastic composite material and preparation method and application of agent

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specific Embodiment approach 1

[0036] Specific embodiment 1: In this embodiment, a composite halogen-free flame-retardant smoke suppressant of PVC wood-plastic composite material is composed of polyphosphate amine, melamine, pentaerythritol and copper oxide, according to the mass ratio Composition of ammonium polyphosphate: melamine: pentaerythritol: copper oxide = (0.4-4): (0.3-3): (0.3-3): 1; the degree of polymerization of the ammonium polyphosphate n>1500.

[0037] This embodiment has the following beneficial effects:

[0038] 1. The composite halogen-free flame retardant and smoke suppressant of this embodiment performs flame retardant and smoke suppression treatment on wood fiber and polyvinyl chloride, the main components of the wood-plastic composite material, and the wood fiber material doubles as an auxiliary charcoal forming agent in the flame retardant system. The flame retardant and smoke suppression effect has obvious advantages, and the addition amount is small and the cost is low.

[0039] ...

specific Embodiment approach 2

[0047] Embodiment 2: This embodiment differs from Embodiment 1 in that: the degree of polymerization of the ammonium polyphosphate n>1500. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0048] Specific embodiment three: This embodiment is a method for preparing a composite halogen-free flame retardant and smoke suppressant of PVC wood-plastic composite material, the method is carried out according to the following steps:

[0049] 1. According to the mass ratio: polyphosphate amine: melamine: pentaerythritol: copper oxide = (0.4 ~ 4): (0.3 ~ 3): (0.3 ~ 3): 1 Weigh polyphosphate amine, melamine, pentaerythritol and copper oxide as Raw materials, put the weighed amine polyphosphate, melamine and pentaerythritol in a high-speed mixer, and stir at a speed of 2000r / min to 2500r / min for 10min to 15min to complete the preparation of the intumescent flame retardant;

[0050] 2. Add the copper oxide weighed in step 1 as a flame retardant synergist to the intumescent flame retardant prepared in step 1, and stir in a high-speed mixer at a speed of 2000r / min to 2500r / min for 10min to 15min , that is to complete the preparation of the PVC wood-plastic composite compound ha...

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Abstract

The invention relates to a composite halogen-free flame-retardant smoke suppression agent of a PVC wood-plastic composite material and a preparation method and application of the agent, which relate to the composite halogen-free flame-retardant smoke suppression agent and the preparation method and application of the agent, and aim at solving the problems that the PVC wood-plastic composite material is combustible, a great amount of smoke is produced when the composite material is combusted, the addition amount of the existing PVC wood-plastic composite material flame-retardant smoke suppression agent is large, the flame-retardant effect and the smoke suppression effect are poor, and the existing PVC wood-plastic composite material flame-retardant smoke suppression agent is harmful to the health of people. The composite halogen-free flame-retardant smoke suppression agent consists of ammonium polyphosphate, melamine, pentaerythritol and copper oxide. The preparation method comprises the following steps: I, preparing an expansion-type flame-retardant agent; II, preparing the composite halogen-free flame-retardant smoke suppression agent. The application method comprises the following steps: I, weighing raw materials; II, preparing high-temperature materials; III, preparing a premix; IV, extruding and forming. The flame-retardant smoke suppression agent solves the problems that the wood-plastic composite material is combustible, a great amount of smoke is produced when the composite material is combusted, the addition amount of the existing flame-retardant smoke suppression agent is large, the effect is poor, and the existing flame-retardant smoke suppression agent is harmful to the health of people. The composite halogen-free flame-retardant smoke suppression agent is used for resisting the combustion and suppressing the smoke of the PVC wood-plastic composite material.

Description

technical field [0001] The invention relates to a flame-retardant and smoke-suppressing agent for PVC wood-plastic composite materials, a preparation method and application thereof, and is especially suitable for flame-retardant and smoke-suppressant of PVC wood-plastic composite materials with a wood fiber content of 30% to 70%. Background technique [0002] Wood-plastic composite materials are lignified fiber materials such as wood, bamboo, crop straw and processing residues, whose main chemical components are cellulose, hemicellulose and lignin) and plastics (such as polyethylene, Polypropylene, polystyrene, polyvinyl chloride and other thermoplastic polymers) are composite materials made of raw materials. PVC wood-plastic composite material is one of its main varieties. Due to its good processing performance, mechanical properties and price advantages, especially the excellent wood feeling, the application field of PVC wood-plastic composite materials is constantly expa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08K13/02C08K3/32C08K5/3492C08K5/053C08K3/22B29C47/92B29C48/92
CPCC08L27/06B29C48/92B29C2948/92704C08K3/22C08K3/32C08K5/053C08K5/34922C08K13/02C08K2003/2248C08K2003/323C08L2201/02C08L2201/22C08L2205/03C08L2205/035C08L2205/16C08L97/02
Inventor 白晓艳张春生
Owner 白晓艳
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