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A kind of PVC organic compound heat stabilizer and PVC product and preparation method thereof
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A composite thermal stabilizer and organic technology, applied in the field of organic composite materials, can solve problems such as poor thermal stability, and achieve the effects of alleviating the phenomenon of zinc burning, improving stability and strong operability
Active Publication Date: 2021-04-23
GUANGDONG XINDA ADVANCED MATERIALS TECH CO LTD
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Problems solved by technology
[0004] The technical problem to be solved in the present invention is to overcome the defects and deficiencies of the poor long-term thermal stability of existing PVC heat stabilizers, and provide a PVC organic composite heat stabilizer, which is based on tetrahydroxyalkyl glycoluril as a stabilizer. The synergistic effect of the composite components effectively improves the thermal stability, inhibits the zinc burning phenomenon of PVC, and provides a new idea for the research and development of PVC thermal stabilizers
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Embodiment 1
[0034] A PVC product, including 100 parts of PVC, 1 part of tetramethylol glycoluril, 1 part of 1,3-dimethyl-6-aminouracil, 0.6 parts of zinc stearate, 2.4 parts of calciumstearate, 5 parts Part Dioctyl Phthalate, 0.5 Part Stearic Acid,
[0035] The preparation method is as follows: Weigh the raw materials of each component, stir and mix evenly through a high-speed agitator at a high speed, and the mixture is mixed and plasticized into sheets on a two-roll mill. In this embodiment, each part is 1 gram. The roller temperature of the two-roll mill is 170°C, roller distance 1mm, roller speed: 45r / min, mixing time 5min.
Embodiment 2
[0037] A PVC product, including 100 parts of PVC, 5 parts of tetramethylol glycoluril, 1 part of 1,3-dimethyl-6-aminouracil, 0.6 parts of zinc stearate, 2.4 parts of calcium stearate, 5 parts Part Dioctyl Phthalate, 0.5 Part Stearic Acid,
[0038] The preparation method is as follows: Weigh the raw materials of each component, stir and mix evenly through a high-speed agitator at a high speed, and the mixture is mixed and plasticized into sheets on a two-roll mill. In this embodiment, each part is 1 gram. The roller temperature of the two-roll mill is 170°C, roller distance 1mm, roller speed: 45r / min, mixing time 5min.
Embodiment 3
[0040] A PVC product, including 100 parts of PVC, 1 part of tetramethylol glycoluril, 5 parts of 1,3-dimethyl-6-aminouracil, 0.6 parts of zinc stearate, 2.4 parts of calcium stearate, 5 parts Part Dioctyl Phthalate, 0.5 Part Stearic Acid,
[0041] The preparation method is as follows: Weigh the raw materials of each component, stir and mix evenly through a high-speed agitator at a high speed, and the mixture is mixed and plasticized into sheets on a two-roll mill. In this embodiment, each part is 1 gram. The roller temperature of the two-roll mill is 170°C, roller distance 1mm, roller speed: 45r / min, mixing time 5min.
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Abstract
The invention discloses a PVC organic composite heat stabilizer, a PVC product and a preparation method thereof. 1,3-dimethyl-6-aminouracil 1-5 parts, zincstearate 0.5-1 part, calciumstearate 2-2.5 parts. The PVC organic composite heat stabilizer of the present invention uses tetrahydroxyalkyl glycoluril as the main stabilizer, and is compounded with other synergistic components, which effectively improves the stability of the PVC heat stabilizer, alleviates the "zinc burning phenomenon" of PVC, and improves The degradation and aging of PVC; the 1,3-dimethyl-6-aminouracil in the PVC organic composite heat stabilizer has the ability to replace the unstable chlorine atoms in PVC, and cooperate with tetrahydroxyalkyl glycoluril to eliminate or reduce PVC The discoloration phenomenon; the heat stabilizer system does not contain heavy metal substances, which is in line with the concept of non-toxic and environmental protection.
Description
technical field [0001] The invention relates to the technical field of organic composite materials, more specifically, to a PVC organic composite heat stabilizer, PVC products and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics. Due to its excellent comprehensive performance and low price, it has been widely used in various fields, and its consumption is second only to polyethylene. However, the poor thermal stability of polyvinyl chloride makes it necessary to add appropriate heat stabilizers during processing to inhibit the degradation of polyvinyl chloride. Generally speaking, heat stabilizers can be divided into the following categories: lead salts, metal soaps, organotin and rare earth heat stabilizers. However, the common lead salts and organotin heat stabilizers in the market are toxic to a certain extent. Under the theme of global environmental protection, it is an urgent demand in the ...
Claims
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Application Information
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