PVC furniture board and preparation method thereof

A furniture board and PVC resin technology, applied in the field of PVC furniture board and its preparation, can solve the problems of easy vulcanization pollution, high formula cost, poor environmental protection performance, etc., to improve product stability, save wood consumption, and improve production cycle Effect

Inactive Publication Date: 2018-09-28
WUHU CONCH NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, lead-free environmental protection and stable systems mainly include organotin and calcium-zinc compound. It is still a heavy metal, and its environmental protection is questioned, and the processing process has a strong smell, and the cost of the formula is high; the lead-based formula contains toxic heavy metals, is easy to vulcanize and pollute, has poor environmental performance, and has large dispersion of mechanical properties.
The traditional calcium-zinc compound formula is prone to technical problems such as insufficient thermal stability, uneven foaming, insufficient toughness, mold paste and long-term operation precipitation in foamed products

Method used

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  • PVC furniture board and preparation method thereof
  • PVC furniture board and preparation method thereof
  • PVC furniture board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A kind of PVC furniture board, comprises the raw material as shown in table 1 embodiment 1 weight part.

[0048] The preparation method of the pVC furniture board comprises the following steps:

[0049] S1: Prepare each raw material according to the formula quantity;

[0050] S2: According to the feeding sequence of adding PVC resin and / or self-circulating recycled materials first, then adding K718 processing aid, and finally adding other raw materials, put each raw material into the hot mixing pot, control the stirring speed to 680rpm / min, and set the temperature at 110 ℃ heat mixing for 520s to obtain hot mixture;

[0051] S3: cold mix the hot mix obtained in step S2 at a stirring speed of 320rpm / min for 420 seconds, and reduce the temperature of the hot mix to below 40°C to obtain a cold mix;

[0052] S4: Under vacuum negative pressure, heat the cold mixture obtained in step S3 in the barrel at 155-175°C to become a melt; the melt is extruded through the mold and t...

Embodiment 2

[0063] A kind of PVC furniture board, comprises the raw material of weight part as shown in Table 1 embodiment 2.

[0064] The preparation method of the pVC furniture board comprises the following steps:

[0065] S1: Prepare each raw material according to the formula quantity;

[0066] S2: According to the feeding order of adding PVC resin and / or self-circulating recycled materials first, then adding K718 processing aid, and finally adding other raw materials, put each raw material into the hot mixing pot, control the stirring speed to 680rpm / min, and set the temperature at 115 ℃ heat mixing for 400s to obtain hot mixture;

[0067] S3: cold mix the hot mix obtained in step S2 for 330 seconds at a stirring speed of 320 rpm / min, and lower the temperature of the hot mix to below 40° C. to obtain a cold mix;

[0068] S4: Under vacuum negative pressure, heat the cold mixture obtained in step S3 in the barrel at 155-175°C to become a melt; the melt is extruded through the mold and...

Embodiment 3

[0071] A kind of PVC furniture board, comprises the raw material of weight part as shown in the embodiment 3 of table 1.

[0072] The preparation method of the pVC furniture board comprises the following steps:

[0073] S1: Prepare each raw material according to the formula quantity;

[0074] S2: According to the feeding sequence of adding PVC resin and / or self-circulating recycled materials first, then adding K718 processing aid, and finally adding other raw materials, put each raw material into the hot mixing pot, control the stirring speed to 680rpm / min, and set the temperature at 112 ℃ heat mixing for 480s to obtain hot mixture;

[0075] S3: cold mix the hot mix obtained in step S2 for 370 seconds at a stirring speed of 320rpm / min, and lower the temperature of the hot mix to below 40°C to obtain a cold mix;

[0076] S4: Under vacuum negative pressure, heat the cold mixture obtained in step S3 in the barrel at 155-175°C to become a melt; the melt is extruded through the m...

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Abstract

The invention discloses a PVC furniture board and a preparation method thereof. The PVC furniture board comprises the following raw materials by weight: PVC resin, light calcium carbonate, calcium stearate, zinc stearate, zinc acetylacetonate, zinc beta-diketone, phosphite ester, dipentaerythritol alkyl ester, an antioxidant, hydrotalcite, zeolite, glyceryl monostearate, an internal lubricant G60,PE wax, polyethylene wax AC316A, a foaming agent AC, sodium bicarbonate, a processing auxiliary agent K718, a whitening agent and TiO2. The PVC furniture board obtained by using the method provided by the invention is environmentally-friendly and safe, has good thermal stability, is uniform to foam, and has Shore hardness of no less than 70 D, tensile strength of no less than 12 Mpa, elongation at break of no less than 10% and a bending elastic modulus of no less than 1780 MPa.

Description

technical field [0001] The invention belongs to the technical field of PVC boards, and in particular relates to a PVC furniture board and a preparation method thereof. Background technique [0002] With the ever-changing needs of customers in the market, people are increasingly favoring decoration materials that are environmentally friendly and free from harmful substances such as formaldehyde. As the basic material for traditional furniture production, furniture boards are commonly used in specifications of 2440*1220mm, and board thicknesses of 8mm, 12mm, 15mm, and 18mm. It is mainly used in kitchens and bathrooms, wardrobes, bedside tables, tables and chairs, etc. It can also be used in wall decoration, bus interior decoration and other fields. It is a general-purpose basic material. In recent years, foamed furniture boards based on PVC materials have become more and more popular among customers due to their excellent properties such as light weight, moisture resistance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/26C08K5/098C08K3/22C08J9/10C08J9/08
CPCC08J9/0052C08J9/0066C08J9/08C08J9/103C08J2327/06
Inventor 段天祥杨文瑞徐刚林永德李波吴哲荣
Owner WUHU CONCH NEW MATERIAL
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