A kind of imitation wood grain masterbatch, polyethylene composite material and preparation method thereof

Abstract

The invention discloses an imitated wood grain color master batch. The imitated wood grain color master batch comprises a particle A and a particle B; the particle A comprises, by weight, 20-68% of polypropylene, 20-68% of polybutylene telephthalate, 5-20% of glycidyl methacrylate-styrene multi-monomer melt-grafted polypropylene, 5-20% of a toner, 1-5% of a dispersant and 1-3% of a processing assistant; and the particle B is a polyethylene and toner compound. The imitated wood grain color master batch comprises the particle A and the particle B having different resin base materials, and the particle A and the particle B have different melting points, so asynchronous plasticizing in the melt extrusion process can be easily realized, thereby the surface of a product has an imitated wood grain decoration effect; and the imitated wood grain color master batch can be used for blow molding technology production.

Description

technical field [0001] The invention relates to the field of decorative materials, in particular to a polymer modified composite material. Background technique [0002] With the rapid development of my country's economy and society, the consumption of wood has increased significantly, resulting in excessive deforestation and serious deterioration of the ecological environment. Substitute wood is bound to become the mainstream of future development. [0003] At present, the imitation wood grain plastic mainly adopts the following methods: 1. Co-extrusion of masterbatch mixed with PVC material. The melt viscosity is much smaller than the melt viscosity of plastic, thus producing wood grain effect. The disadvantage is that PVC material is not environmentally friendly and harmful to health, and PVC cannot be blow molded, brittle, and inconvenient to carry; 2. Through transfer printing, The surface of the product is treated by printing, painting, peritoneum, etc. The disadvantag...

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Problems solved by technology

[0003] At present, the imitation wood grain plastic mainly adopts the following methods: 1. Co-extrusion of masterbatch mixed with PVC material. The melt viscosity is much lower than the melt viscosity of plastic, thus producing wood grain effect. The disadvantage is that PVC material is not environmentally friendly and harmful to health, and PVC cannot be blow molded, brittle, and inconvenient to carry; 2. Through transfer printing, The surface of the product is treated by printing, painting, peritoneum, etc. The disadvantages are that these treatment methods require special equipment, and have a strong smell, pollution, release formaldehyde and other harmful substances, and the surface of the product is quite different from the original wood color; 3. Through Paste wood grain paper or wood grain sheet to achieve wood grain effect. The disadvantage is that the grain only exists on the surface of the workpiece. During the production process, defects such as warped feet and bulges are easy to occur, and the wood grain effect on the surface of the product is easily damaged during transportation or use. ;4. The wood grain effect can be achieved by designing a co-extrusion die with a special shape to feed the wood grain color masterbatch. The disadvantage is that the equipment needs to be re-improved, the side feeding will be increased, and the cost of the mold will be increased by at least 30%, and the two are compatible. Poor durability, easy to fall off during use

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