High performance CPVC solvent-type adhesive and preparation method thereof
A CPVC resin, solvent-based technology, used in adhesives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problem of unsatisfactory effect of CPVC piping system, low cohesion, poor heat resistance, etc. problem, to achieve the effect of strong adhesion, high heat resistance temperature and good stability
Active Publication Date: 2018-07-31
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology
[0003] At present, there is little information about adhesives specially applied to CPVC pipes. Adhesives for PVC pipes are generally used in the market, most of which use PVC as the base material, or simply use CPVC to partially or completely replace the PVC base material. PVC solvent-based adhesives bond CPVC. The effect of the piping system is not ideal, mainly due to the problems of low adhesion and poor heat resistance, especially when used in hot fluid piping systems
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[0018] High-performance CPVC solvent-based adhesive, in parts by weight, raw material composition and preparation parameters are shown in Table 1.
[0019] The raw material formula of table 1 embodiment 1-6 and comparative example 1 and preparation parameter thereof
[0020]
[0021] The preparation steps of high-strength CPVC solvent-based adhesive are as follows:
[0022] Add the solvent to the mixer heated by the water bath, add CPVC resin powder and reinforcing agent, and stir until the CPVC resin and reinforcing agent are completely dissolved; add filler, stir evenly, and stand still for 60 minutes to prepare a high-strength CPVC solvent-based adhesive.
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Abstract
The invention relates to a high performance CPVC solvent-type adhesive. The CPVC resin has the average molecular weight of 28,000 to 45,000 and chlorine content of 64% to 70%, and preferably, has molecular weight of 30,000 and chlorine content of 66% to 68%. The chlorine content is 66wt% to 68wt%. The high performance CPVC solvent-type adhesive has the characteristics of good stability, high heatresistance temperature and strong adhesion, is suitable for UPVC and CPVC pipe systems, and is especially suitable for pipe systems of hot fluids.
Description
technical field [0001] The invention relates to a solvent-based adhesive, in particular to a high-performance CPVC solvent-based adhesive and a preparation method thereof. Background technique [0002] CPVC resin is a new type of engineering plastic with broad application prospects. It is widely used in various pipelines due to its excellent properties such as high mechanical strength, heat resistance, weather resistance, chemical medium corrosion resistance, flame retardancy, and smoke suppression. The pipe connection usually adopts the bonding method. In this method, a solvent-based adhesive is applied to the outer surface of the pipe and the inner surface of another pipe, respectively, and the two surfaces are bonded together through molecular force. [0003] At present, there is little information about adhesives specially applied to CPVC pipes. Adhesives for PVC pipes are generally used in the market, most of which use PVC as the base material, or simply use CPVC to par...
Claims
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IPC IPC(8): C09J127/24C09J11/08C09J11/04
CPCC08K2201/011C08L2201/08C09J11/04C09J11/08C09J127/24C08L63/04C08L29/14C08K2003/265C08K3/36
Inventor 张学明王晶张新华孔秀丽贾小波肖恩琳李长春张强许永森孙丽朋
Owner CHINA PETROLEUM & CHEM CORP
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